ORD - SFO

£89 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 Chicago to San Francisco departing on 8/4. 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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£168
Overall average: £223
Southwest
Sat 18/4Sat 25/4
ORD - SFO • 2 stops
Cheapest direct flights
£175
Typical prices: £177-£312
United Airlines
Thu 2/4Sat 11/4
ORD - SFO • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Security lines at ORD can exceed 30 minutes.
For a quick city transfer, take BART from SFO.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
You can fly direct with American Airlines and United Airlines. Average duration is 4h 57m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 81% 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 53% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
Good to know
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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
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Expert advice
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 Chicago to San Francisco

Sat, 18 Apr - Sat, 25 Apr
Southwest Logo
07:00 - 16:10
ORD
-
SFO
11h 10m
2 stops
Southwest Logo
05:40 - 14:20
SFO
-
ORD
6h 40m
1 stop
£168Southwest
Fri, 24 Apr - Fri, 1 May
Frontier Logo
05:50 - 17:34
ORD
-
SFO
13h 44m
1 stop
Frontier Logo
18:29 - 05:50
SFO
-
ORD
9h 21m
1 stop
£172Frontier
Thu, 2 Apr - Sat, 11 Apr
United Airlines Logo
21:40 - 00:39
ORD
-
SFO
4h 59mdirect
United Airlines Logo
16:55 - 23:29
SFO
-
ORD
4h 34mdirect
£175United Airlines
Wed, 15 Apr - Tue, 21 Apr
United Airlines Logo
07:40 - 10:38
ORD
-
SFO
4h 58mdirect
United Airlines Logo
06:33 - 13:00
SFO
-
ORD
4h 27mdirect
£177United Airlines
Thu, 2 Apr - Fri, 10 Apr
Delta Logo
19:10 - 23:59
ORD
-
SFO
6h 49m
1 stop
Delta Logo
00:10 - 08:52
SFO
-
ORD
6h 42m
1 stop
£180Delta
Fri, 24 Apr - Sat, 2 May
United Airlines Logo
22:45 - 01:35
ORD
-
SFO
4h 50mdirect
United Airlines Logo
22:55 - 05:25
SFO
-
ORD
4h 30mdirect
£182United Airlines
Tue, 14 Apr - Tue, 21 Apr
United Airlines Logo
15:45 - 18:38
ORD
-
SFO
4h 53mdirect
United Airlines Logo
23:52 - 06:20
SFO
-
ORD
4h 28mdirect
£182United Airlines
Tue, 21 Apr - Tue, 28 Apr
American Airlines Logo
06:55 - 09:52
ORD
-
SFO
4h 57mdirect
American Airlines Logo
14:57 - 21:34
SFO
-
ORD
4h 37mdirect
£183American Airlines
Sat, 23 May - Tue, 26 May
Delta Logo
11:07 - 17:49
ORD
-
SFO
8h 42m
1 stop
Delta Logo
05:55 - 16:49
SFO
-
ORD
8h 54m
1 stop
£184Delta
Sat, 18 Apr - Tue, 28 Apr
Delta Logo
07:15 - 16:05
ORD
-
SFO
10h 50m
2 stops
Delta Logo
14:57 - 23:58
SFO
-
ORD
7h 01m
1 stop
£185Delta
Booking Insights

KAYAK’s insights & trends for Chicago to San Francisco flights

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

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 May, where tickets cost £214 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is £318 and £296 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 £226, 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 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from Chicago to San Francisco

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Good to know - Cheap tickets from Chicago to San Francisco

Low seasonJanuary
Cheapest flight£89
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly (16% more expensive on average)
Flight from Chicago to San Francisco

When to book flights from Chicago to San Francisco

Are your dates flexible? Find out the best times to travel from Chicago 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 £89 for a one-way ticket and £168 for a return.

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

    Chicago and San Francisco are both served by 1 main airport. You will leave Chicago from Chicago O'Hare Intl and will be arriving at San Francisco.

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

    American Airlines, JetBlue, Alaska Airlines, Delta, 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 Airbus A321neo is the aircraft model that flies most regularly on the Chicago to San Francisco flight 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.

  • 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 to San Francisco?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct 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

Everything you need to know for your flight from Chicago to San Francisco

Information on your arrival and departure airports