Southwest® flights from Chicago (O'Hare) to San Francisco from $114

Promo Code

Low fares from Chicago (O'Hare) to San Francisco

$

Chicago (Midway) (MDW)to

San Francisco (SFO)
Depart: 05/09/2026

One-way

Basic

From
$75
Seen: 3 hrs ago

Chicago (Midway) (MDW)to

San Francisco (SFO)
Depart: 03/14/2026

One-way

Basic

From
$90
Seen: 6 hrs ago

Chicago (Midway) (MDW)to

San Francisco (SFO)
Depart: 02/28/2026

One-way

Basic

From
$100
Seen: 3 hrs ago

Chicago (Midway) (MDW)to

San Francisco (SFO)
Depart: 03/07/2026

One-way

Basic

From
$104
Seen: 2 hrs ago

Chicago (Midway) (MDW)to

San Francisco (SFO)
Depart: 05/09/2026

One-way

Choice

From
$107
Seen: 3 hrs ago

Chicago (Midway) (MDW)to

San Francisco (SFO)
Depart: 04/07/2026

One-way

Basic

From
$109
Seen: 10 hrs ago
Two happy travelers riding a scooter at sunset, promoting low-fare flights.

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Chicago (O'Hare) to San Francisco

Flight Details

Departing from:
O'Hare International Airport
Arriving at:
San Francisco International Airport
Distance:
1846 miles

Route Information

89 Weekly flights

† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

Explore San Francisco

When you land in the San Francisco Bay Area, you may have a tough time deciding where to start your Frisco adventure. Whether you’re drawn to the area because of its rich counterculture history or its importance to the modern tech world, there’s plenty to explore. Consider starting with something you can’t get anywhere else: a cable car ride up iconic Nob Hill then down to the waterfront. Hills abound in San Francisco—there are 44 across the city that make up its distinctive terrain. If you rent a car, don’t forget to set your parking brake.

You can’t visit Frisco without exploring Golden Gate Park. The largest park in the city stretching from city center to the ocean, it’s larger than famed Central Park. The grounds include the Conservatory of Flowers, the Japanese Tea Garden, and the San Francisco Botanical Garden. North of the park is the Golden Gate and the famed Golden Gate Bridge—stop by the visitors center and consider taking a walk across the bridge into Marin County.

Questions we hear the most

There are 89 weekly flights from Chicago (O'Hare) to San Francisco on Southwest Airlines.
To find the lowest fares by day and time to fly Chicago (O'Hare) to San Francisco with Southwest, check out our Low Fare Calendar.
You can rent a car at San Francisco International Airport book yours with your flight.
Yes! Flights from Chicago (O'Hare) to San Francisco—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.

Popular Flights from Chicago (O'Hare)