ORD - SFO

₹ 12,859 Find Cheap Flights from Chicago to San Francisco

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 26/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to San Francisco, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
₹ 28,004
Typical prices: ₹ 40,244-₹ 23,813
United Airlines
Wed 22/7Mon 3/8
ORD - SFO • Direct
Cheapest direct flights
₹ 28,004
Typical prices: ₹ 41,720-₹ 27,909
United Airlines
Wed 22/7Thu 30/7
ORD - SFO • Direct
Top airlines
Cheapest • from ₹ 28,004 (return)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with American Airlines and United Airlines. Average duration is 4h 51m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 80% 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 48% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
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

Wed, 22 Jul - Mon, 3 Aug
United Airlines Logo
21:35 - 00:32
ORD
-
SFO
4h 57mdirect
United Airlines Logo
22:38 - 05:01
SFO
-
ORD
4h 23mdirect
₹ 28,004United Airlines
Mon, 10 Aug - Sat, 15 Aug
Delta Logo
19:44 - 23:52
ORD
-
SFO
6h 08m
1 stop
Delta Logo
05:36 - 16:17
SFO
-
ORD
8h 41m
1 stop
₹ 28,480Delta
Sat, 8 Aug - Sat, 15 Aug
Alaska Airlines Logo
17:59 - 23:08
ORD
-
SFO
7h 09m
1 stop
Alaska Airlines Logo
19:04 - 05:00
SFO
-
ORD
7h 56m
1 stop
₹ 28,766Alaska Airlines
Fri, 3 Jul - Wed, 8 Jul
United Airlines Logo
06:10 - 08:47
ORD
-
SFO
4h 37mdirect
United Airlines Logo
18:34 - 00:59
SFO
-
ORD
4h 25mdirect
₹ 28,861United Airlines
Thu, 6 Aug - Tue, 18 Aug
American Airlines Logo
05:00 - 09:42
ORD
-
SFO
6h 42m
1 stop
American Airlines Logo
22:53 - 05:13
SFO
-
ORD
4h 20mdirect
₹ 28,957American Airlines
Thu, 10 Sep - Sun, 13 Sep
Frontier Logo
13:02 - 23:45
ORD
-
SFO
12h 43m
1 stop
Frontier Logo
16:51 - 05:42
SFO
-
ORD
10h 51m
1 stop
₹ 29,338Frontier
Fri, 28 Aug - Sat, 29 Aug
United Airlines Logo
06:00 - 08:38
ORD
-
SFO
4h 38mdirect
United Airlines Logo
16:10 - 22:30
SFO
-
ORD
4h 20mdirect
₹ 29,623United Airlines
Mon, 29 Jun - Tue, 7 Jul
Delta Logo
14:07 - 20:59
ORD
-
SFO
8h 52m
1 stop
Delta Logo
06:00 - 16:59
SFO
-
ORD
8h 59m
1 stop
₹ 29,814Delta
Mon, 29 Jun - Tue, 7 Jul
Delta Logo
14:07 - 20:59
ORD
-
SFO
8h 52m
1 stop
Delta Logo
06:00 - 16:59
SFO
-
ORD
8h 59m
1 stop
₹ 29,909Delta
Sat, 8 Aug - Mon, 10 Aug
Alaska Airlines Logo
17:59 - 23:08
ORD
-
SFO
7h 09m
1 stop
Alaska Airlines Logo
07:55 - 18:57
SFO
-
ORD
9h 02m
1 stop
₹ 30,004Alaska 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 July.

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 Saturdays.

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 ₹ 29,433 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is ₹ 42,197 and ₹ 41,149 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 ₹ 53,900, 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 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight₹ 12,859
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (2% 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 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to San Francisco was ₹ 12,859 for a one-way ticket and ₹ 28,004 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 ₹ 37,716 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 ₹ 41,734 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.

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for ₹ 16,007 or less one-way.

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 9779 reviews
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
7.7Boarding
Airline reviews

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6.0 GoodRoger, May 2026
ONT - SFO
Read more United Airlines reviews

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

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.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

I almost missed my flight and they helped me out enormously

Buying ticket from kayak instant booking was a huge mistake, never to be repeated again! The Kayak didn’t book the tickets directly, it handed it off to a third party Underpricer, that booked a code shared American Airlines flight operated by Cathay Pacific!! When managing the booking American Airlines would recognize the itinerary but wouldn’t let me do anything stating, the flight is operated by Cathay Pacific so go to their website. Cathay Pacific would recognize the itinerary, neither by reservation ID or ticket number…asking to reach out to the third party Underpricer….calling Underpricer resulted in no help like seat requests, mileage number or upgrade request, 15hr layover accommodation voucher guidance…so net in net avoid booking through three layers of intermediaries

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

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

Information on your arrival and departure airports