$109 Cheap Flights from Chicago (ORD) to San Francisco (SFO)

View $109 flight on Tue, Dec 16, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)

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

Prices were available within the past 7 days and start at $109 for one-way flights and $178 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Dec 9 - Sat, Dec 13
ORD
Chicago
SFO
San Francisco
$178 Roundtrip, found 21 hours ago
$178
Roundtrip
found 21 hours ago
Select Southwest Airlines flight, departing Tue, Dec 9 from Chicago to San Francisco, returning Sat, Dec 13, priced at $178 found 21 hours ago
Alaska Airlines
Tue, Dec 9 - Sat, Dec 13
ORD
Chicago
SFO
San Francisco
$198 Roundtrip, found 21 hours ago
$198
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Chicago to San Francisco, returning Sat, Dec 13, priced at $198 found 21 hours ago
Alaska Airlines
Fri, Oct 31 - Thu, Nov 13
ORD
Chicago
SFO
San Francisco
$201 Roundtrip, found 3 days ago
$201
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Oct 31 from Chicago to San Francisco, returning Thu, Nov 13, priced at $201 found 3 days ago
Alaska Airlines
Tue, Dec 9 - Sat, Dec 13
ORD
Chicago
SFO
San Francisco
$204 Roundtrip, found 21 hours ago
$204
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Chicago to San Francisco, returning Sat, Dec 13, priced at $204 found 21 hours ago
Frontier Airlines
Mon, Dec 8 - Tue, Dec 16
ORD
Chicago
SFO
San Francisco
$205 Roundtrip, found 12 hours ago
$205
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Chicago to San Francisco, returning Tue, Dec 16, priced at $205 found 12 hours ago
Southwest Airlines
Tue, Dec 16 - Wed, Dec 17
ORD
Chicago
SFO
San Francisco
$207 Roundtrip, found 4 hours ago
$207
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Tue, Dec 16 from Chicago to San Francisco, returning Wed, Dec 17, priced at $207 found 4 hours ago
Frontier Airlines
Mon, Nov 10 - Mon, Nov 17
ORD
Chicago
SFO
San Francisco
$207 Roundtrip, found 7 hours ago
$207
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Mon, Nov 10 from Chicago to San Francisco, returning Mon, Nov 17, priced at $207 found 7 hours ago
Alaska Airlines
Tue, Nov 11 - Mon, Nov 17
ORD
Chicago
SFO
San Francisco
$212 Roundtrip, found 6 hours ago
$212
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Nov 11 from Chicago to San Francisco, returning Mon, Nov 17, priced at $212 found 6 hours ago
American Airlines
Fri, Oct 31 - Tue, Nov 4
ORD
Chicago
SFO
San Francisco
$232 Roundtrip, found 5 hours ago
$232
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Fri, Oct 31 from Chicago to San Francisco, returning Tue, Nov 4, priced at $232 found 5 hours ago
United
Mon, Nov 24 - Thu, Nov 27
ORD
Chicago
SFO
San Francisco
$233 Roundtrip, found 8 hours ago
$233
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Nov 24 from Chicago to San Francisco, returning Thu, Nov 27, priced at $233 found 8 hours ago

Find the cheapest month to fly from Chicago (ORD) to San Francisco (SFO)

August is typically the cheapest month to fly

From $119 - $387 per traveler.

Alternative airports near San Francisco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Norman Y. Mineta San Jose Intl. SJC. Average driving time to city center is 50 minutes. Flights from $324
SJC
Norman Y. Mineta San Jose Intl.
Average driving time to city center50 min
Flights from $324

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO) cost?
Lock in a cheap one-way flight from $109 or cheap return flight from $178 from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
The cheapest month to fly from ORD to SFO is December, when demand is low. Off-peak months are usually when better flight deals are available between these airports.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
Avoid the layovers and travel nonstop from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO) with 3 airlines, including:

  • United Airlines
  • American Airlines
  • Alaska Airlines

What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
While prices can change depending on when you travel, Alaska Airlines and American Airlines are go-to choices for flights between O'Hare Intl. Airport (ORD) and San Francisco Intl. Airport (SFO). You can also compare airlines on Expedia and use the "Sort by" filter to find the best deal for your ORD to SFO flight.
How many flights per day from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
With an average of 10 direct flights departing from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO) each day, you'll be on your way in no time.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
The 12 PM departures from ORD to SFO are the most sought after. Greater demand means you'll likely pay more for these departures. If you're looking to save, pick a less crowded time to fly.
What day of the week has the most flights from ORD to SFO?
If you travel on a Sunday, you'll get the biggest range of choices for flights from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO).
What is the earliest flight from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
O'Hare Intl. Airport (ORD)'s earliest flight to San Francisco Intl. Airport (SFO) departs at approximately 6:30AM UTC-6. With a flight time of 4h 54m, you'll arrive at around 9:24AM UTC-8.
How long does it take to fly from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
It usually takes 4 hours and 53 minutes to fly the 1,850 mi from ORD to SFO.
What airline has the least delays from ORD to SFO?
Consider booking with Alaska Airlines if you'd like to go straight from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO) without any holdups. This carrier has the strongest track record for punctuality, with an on-time performance of 85%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
To reach San Francisco Intl. Airport (SFO) without delays, book a flight that takes off from O'Hare Intl. Airport (ORD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Francisco from O'Hare Intl. Airport (ORD)?
If you're catching a direct flight from O'Hare Intl. Airport (ORD) to San Francisco, you can land at either San Francisco Intl. Airport (SFO) or Norman Y. Mineta San Jose Intl. Airport (SJC).
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO) last-minute?
Waiting until right before your break to book a flight from ORD to SFO often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Keep your travel schedule open to maximize your chances of getting a bargain.
Is it cheaper to book an ORD to SFO flight and hotel package?
Opting for an ORD to SFO flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO)?
If you booked your ORD to SFO flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
O'Hare Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$178
Distance
1842 mi
Average flight time
2 hours 40 mins

Book with confidence

Chicago to San Francisco Flights

The cheapest times to fly from Chicago to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to San Francisco are during the month of December. You can find some of the cheapest flights from Chicago to San Francisco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to San Francisco

Sunday is one of the best days to book for cheap flights from Chicago to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to San Francisco Flights

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*Available to One Key members.