ORD - SFO

₹ 15,597 Find Cheap Flights from Chicago to San Francisco – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to San Francisco departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
₹ 25,548
Typical prices: ₹ 24,400-₹ 43,633
Delta
Sun 6/9Fri 11/9
ORD - SFO • 1 stop
Cheapest direct flights
₹ 25,836
Typical prices: ₹ 26,218-₹ 45,978
United Airlines
Wed 30/9Wed 7/10
ORD - SFO • Direct
Top airlines
Cheapest • from ₹ 25,548 (return)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
You can fly direct with American Airlines and United Airlines. Average duration is 4h 47m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 78% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 46% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
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We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to San Francisco (ORD-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chicago to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from O'Hare Intl to San Francisco

Sun, 6 Sep - Fri, 11 Sep
Delta Logo
12:54 - 20:05
ORD
-
SFO
9h 11m
1 stop
Delta Logo
22:59 - 07:57
SFO
-
ORD
6h 58m
1 stop
₹ 25,548Delta
Wed, 30 Sep - Wed, 7 Oct
United Airlines Logo
06:07 - 08:45
ORD
-
SFO
4h 38mdirect
United Airlines Logo
00:35 - 06:56
SFO
-
ORD
4h 21mdirect
₹ 25,836United Airlines
Wed, 16 Dec - Fri, 25 Dec
Delta Logo
13:30 - 21:24
ORD
-
SFO
9h 54m
1 stop
Delta Logo
10:00 - 17:57
SFO
-
ORD
5h 57m
1 stop
₹ 26,027Delta
Fri, 30 Oct - Mon, 2 Nov
Delta Logo
14:45 - 22:15
ORD
-
SFO
9h 30m
1 stop
Delta Logo
22:59 - 10:11
SFO
-
ORD
9h 12m
1 stop
₹ 26,027Delta
Tue, 6 Oct - Wed, 7 Oct
United Airlines Logo
18:25 - 21:15
ORD
-
SFO
4h 50mdirect
United Airlines Logo
00:35 - 06:56
SFO
-
ORD
4h 21mdirect
₹ 26,505United Airlines
Mon, 17 Aug - Wed, 19 Aug
United Airlines Logo
22:00 - 00:50
ORD
-
SFO
4h 50mdirect
United Airlines Logo
16:29 - 22:59
SFO
-
ORD
4h 30mdirect
₹ 26,505United Airlines
Sat, 12 Sep - Thu, 17 Sep
American Airlines Logo
19:00 - 21:54
ORD
-
SFO
4h 54mdirect
American Airlines Logo
22:46 - 05:00
SFO
-
ORD
4h 14mdirect
₹ 26,601American Airlines
Sat, 12 Sep - Thu, 17 Sep
Frontier Logo
06:30 - 10:47
ORD
-
SFO
6h 17m
1 stop
Frontier Logo
12:07 - 00:45
SFO
-
ORD
10h 38m
2 stops
₹ 26,792Frontier
Sun, 13 Sep - Thu, 17 Sep
Frontier Logo
06:30 - 10:47
ORD
-
SFO
6h 17m
1 stop
Frontier Logo
12:07 - 00:45
SFO
-
ORD
10h 38m
2 stops
₹ 34,352Frontier
Sun, 13 Sep - Fri, 18 Sep
American Airlines Logo
21:06 - 23:56
ORD
-
SFO
4h 50mdirect
American Airlines Logo
14:58 - 21:35
SFO
-
ORD
4h 37mdirect
₹ 35,309American Airlines
Booking Insights

KAYAK's insights & trends for O'Hare Intl to San Francisco flights

Get data-powered insights and trends into flights from O'Hare Intl to San Francisco to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Chicago O'Hare Intl Airport to San Francisco?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Chicago O'Hare Intl Airport to San Francisco departing in September.

Flight prices are below average for this route right now.

Flights to San Francisco from Chicago O'Hare Intl Airport usually cost between ₹ 27,941 and ₹ 45,356 in September.
The lowest price found in the past 5 days was ₹ 25,548 on Delta (6 Sept–11 Sept).

What’s the cheapest day of the week to fly from Chicago to San Francisco?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to San Francisco clicked on KAYAK for each day over the last 12 months.

When flying from Chicago to San Francisco, you should consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to San Francisco is September, where tickets cost ₹ 31,960 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is ₹ 45,738 and ₹ 42,581 respectively.

Can I save money by flying with a stopover from Chicago O'Hare Intl Airport to San Francisco?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of ₹ 59,327, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to San Francisco, you should book around 4 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low season

January

Cheapest flight

₹ 15,597
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (17% more expensive on average)
Flight from Chicago to San Francisco

When to book flights from O'Hare Intl to San Francisco

Are your dates flexible? Find out the best times to travel from O'Hare Intl to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to San Francisco flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to San Francisco?

    In the last 5 days, the lowest price for a flight from Chicago O'Hare Intl Airport to San Francisco was ₹ 15,597 for a one-way ticket and ₹ 25,548 for a return.

  • Which airports will I be using when flying from Chicago to San Francisco?

    On your way to San Francisco, you’ll fly out from Chicago O'Hare Intl. You’ll be landing at San Francisco.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to San Francisco?

    American Airlines, JetBlue, Alaska Airlines, and Air Canada offer inflight Wi-Fi service on the Chicago to San Francisco flight route.

  • Which aircraft models fly most regularly from Chicago to San Francisco?

    The Boeing 757-300 is the aircraft model that flies most regularly on the Chicago to San Francisco flight route.

  • Which airline alliances offer flights from Chicago to San Francisco?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and San Francisco, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Chicago to San Francisco?

    There are direct flights from Chicago to San Francisco on a daily basis.

  • Which is the best airline for flights from Chicago to San Francisco, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to San Francisco are United Airlines and American Airlines. With an average price for the route of ₹ 37,888 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of ₹ 45,197 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Chicago to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Chicago is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Francisco with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Chicago O'Hare Intl to San Francisco?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop from Chicago O'Hare Intl to San Francisco.
Find which airlines fly direct from Chicago O'Hare Intl Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to San Francisco

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

San Francisco to Chicago O'Hare Intl

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top 3 airlines flying from O'Hare Intl to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Chicago to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10046 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

The SFO lounge closes at 12 midnight. My flight took off at 2AM

8.0 ExcellentAnonymous, Jul 2026
ORD - SFO
Read more United Airlines reviews

The SFO lounge closes at 12 midnight. My flight took off at 2AM

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

A bit rush for transit. Food and entertainment are not available

I’ve had a couple flights this week on United that were delayed by an hour or more

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

The gate agent did nothing to help accommodate me. I am handicap and traveling with a toddler. I asked to be seated next to my husband. Someone behind me in line offered their seat and they didn’t look into whether it would be feasible to use their seat to help us sit together. They brushed me off. I was told over the phone, and hy 3 other agents we would be accommodated once we got to the gate and ask. No one told me that was based on seat availability. They confidently guaranteed we would be seated together. No one made me feel like they cared enough to do anything. On past flights when a family needs to sit together I have heard them announce it to see how they can help. I was not helped nor listened to. Shameful and terrible of the staff.

Packed so tightly, some rows didn't even have their own windows. Flight delayed 20+ minutes because of mechanical issue. Offered odd, unappetizing snacks that I couldn't eat anyway because I'd have to be bonkers to take off my N95 mask on a plane that crowded. Could barely move in my own seat. Subjected to a credit card offer, underlining the Atlantic article I read the other day about how U.S. airlines are now basically just banks that happen to offer some mediocre transportation services. The one saving grace is that the flight arrival was delayed much less than the takeoff issues would have suggested. Also, the security area at O'Hare Terminal 1 has been made utterly hideous. I feel so, so sorry for that out-of-place dinosaur fossil. Set it free from its ugly prison.

Horrible. No AC. No Air inside the plane. We had to deplane twice! It is late almost 5 hrs in total. I almost passed out and about to call 911. I asked the crew to be honest and open the door. The lady next to me was lay down in the floor due to heat and no air inside the plane. I got headaches, can’t wait the replacement flight about midnight Dallas time. I end it up rebook for next day flight and stay overnight using my own pocket in a hotel nearby due to headaches and can’t breath. I still have a headache this morning. Still not decided yes how to file this issue to AA and/or FAA.

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

Baby cried a lot. Nothing anyone could do about it. Just part of flying.

The flight crew was fantastic! Which the seats had a small TV.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Boarding was a mess - the agent basically called every group in rapid succession, so there was no organization at all. The economy seats are a joke, and main cabin extra seats were sold out when I purchased my flight. As such, I was locked in the same position for four hours. Being 6’6”, it was impossible to get my bag out from under the seat in front of me, and I couldn’t have used my laptop even if my bag were accessible due to the minuscule seat pitch. Also the wifi was broken. American is a joke - can’t wait until they merge with Spirit.

Horrible scam. Make you pay extra for more leg room then switch your seat as you’re boarding to a regular seat. Never fly American!

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

I couldn’t check in because the app didn’t work. It took 3 Frontier employees at the counter to get me checked in. Flight left 3 hours after departure time

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

Our flight was delayed by four hours without notice, the app for getting my boarding pass is super confusing, and I wasn’t able to check a suitcase without paying for a higher cost package

First the gate was a total nightmare-no chairs anywhere! So over crowded and only one bathroom and nightmare of food service - took forever and NOT one place to sit. No inflight entertainment and had to pay 60.00 for a small carry on. I will never fly Frontier again!

Flight was 3 hours late leaving. Poor communication from the staff about delays. Impossible to get in touch with customer service (by design). And it actually didn't come out to be much cheaper than a non-budget airline! Not worth the headache, I'm never flying Frontier again

See my previous comment which is mostly about our flight from Phoenix to SFO

The check in at the airport was awful. Told I need to pay for a bag. The item was taken at screening. I went back to get my $ back and they gave me a coupon with a QR code that doesn’t work. Worst costumer service ever!!!!!

4 hour delay because they used our aircraft to fly a different segment (per the captain)

Everything you need to know for your flight from O'Hare Intl to San Francisco

Information on your arrival and departure airports