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Cheap flights from Chicago to San Francisco from $40

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to San Francisco departing on 3/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Chicago to San Francisco

Cheap round-trip flights

These are some of the best round-trip flight deals from Chicago to San Francisco that have been recently found on momondo from popular airlines, departing in the coming months.
7:05 am - 12:43 amMDW-SFO
19h 38m1 stop
2:53 pm - 12:17 amSFO-MDW
7h 24m1 stop
$85Frontier
Find Deal
Wed, Mar 5 - Wed, Mar 12
7:05 am - 1:33 pmMDW-SFO
8h 28m1 stop
6:40 am - 12:17 amSFO-MDW
15h 37m1 stop
$116Frontier
Find Deal
Wed, Mar 5 - Wed, Mar 19
8:05 pm - 10:59 pmORD-SFO
4h 54mnonstop
11:55 pm - 6:13 amSFO-ORD
4h 18mnonstop
$188United Airlines
Find Deal
Wed, Feb 19 - Tue, Feb 25
9:25 pm - 8:50 amMDW-SFO
13h 25m1 stop
6:10 am - 12:20 pmSFO-MDW
4h 10mnonstop
$189Southwest
Find Deal
Sat, Feb 15 - Sat, Feb 22
7:00 pm - 10:10 pmORD-SFO
5h 10mnonstop
10:46 am - 4:58 pmSFO-ORD
4h 12mnonstop
$197Alaska Airlines
Find Deal
Wed, Mar 5 - Tue, Mar 11
7:00 pm - 10:10 pmORD-SFO
5h 10mnonstop
6:59 pm - 1:04 pmSFO-ORD
16h 05m1 stop
$198Alaska Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
6:30 am - 9:30 amORD-SFO
5h 00mnonstop
10:36 pm - 4:54 amSFO-ORD
4h 18mnonstop
$207United Airlines
Find Deal
Wed, Mar 5 - Fri, Mar 7
6:20 am - 12:30 pmMDW-SFO
8h 10m1 stop
10:20 am - 4:30 pmSFO-MDW
4h 10mnonstop
$208Southwest
Find Deal
Wed, Feb 12 - Fri, Feb 21
5:00 am - 11:22 amORD-SFO
8h 22m1 stop
12:15 am - 6:33 amSFO-ORD
4h 18mnonstop
$218American Airlines
Find Deal
Tue, Mar 4 - Mon, Mar 17
12:25 pm - 3:19 pmORD-SFO
4h 54mnonstop
5:00 am - 11:16 amSFO-ORD
4h 16mnonstop
$227American Airlines
Find Deal
Wed, Mar 5 - Sun, Mar 9

American Airlines flights from Chicago to San Francisco

Our best American Airlines deals on Chicago to San Francisco flight tickets
American Airlines
Mar 4
ORD5:00 amChicago O'Hare Intl
8h 22m
1 stop
SFO11:22 amSan Francisco
Mar 17
SFO12:15 amSan Francisco
4h 18m
ORD6:33 amChicago O'Hare Intl
American Airlines
Mar 5
ORD12:25 pmChicago O'Hare Intl
4h 54m
SFO3:19 pmSan Francisco
Mar 9
SFO5:00 amSan Francisco
4h 16m
ORD11:16 amChicago O'Hare Intl
American Airlines
Feb 15
ORD12:25 pmChicago O'Hare Intl
4h 54m
SFO3:19 pmSan Francisco
Feb 22
SFO5:15 amSan Francisco
4h 06m
ORD11:21 amChicago O'Hare Intl

Delta flights from Chicago to San Francisco

Our best Delta deals on Chicago to San Francisco flight tickets
Delta
Mar 14
MDW1:16 pmChicago Midway
9h 33m
1 stop
SFO8:49 pmSan Francisco
Mar 24
SFO11:55 pmSan Francisco
7h 14m
1 stop
MDW9:09 amChicago Midway
Delta
Feb 18
ORD4:58 pmChicago O'Hare Intl
8h 21m
1 stop
SFO11:19 pmSan Francisco
Feb 20
SFO10:45 pmSan Francisco
8h 31m
1 stop
ORD9:16 amChicago O'Hare Intl
Delta
Feb 12
ORD7:15 amChicago O'Hare Intl
10h 32m
1 stop
SFO3:47 pmSan Francisco
Feb 20
SFO12:40 amSan Francisco
6h 19m
1 stop
ORD8:59 amChicago O'Hare Intl

See travel insights to San Francisco from

How to get the cheapest flight ticket from Chicago to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and San Francisco?

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of April, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $279.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Chicago to San Francisco is on a Wednesday when prices can be found for as low as $386. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $605.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Chicago to San Francisco flights are usually those with departure times in the afternoon. Our users have found flights to San Francisco in the afternoon for as low as $421. Flights in the morning are often more expensive with an average ticket price of $446.

What is the cheapest Chicago to San Francisco flight route?

Fly from Chicago Midway to San Francisco for the best Chicago - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Chicago when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $335 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Chicago for as low as $292 on momondo.

What cabin class options are available on Chicago to San Francisco flights?

There are 4 cabin classes available to choose from on Chicago to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to San Francisco flight prices changed over time?

As of January 2025, prices for Chicago to San Francisco flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to San Francisco (CHI to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to San Francisco

Best Price Found

$40

Fastest flight time

4h 35m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Chicago in the past 72 hours is $40. The best round-trip flight deal from Chicago to San Francisco found on momondo in the last 72 hours is $85.
The fastest flight from Chicago to San Francisco takes 4h 35m
Direct flights go from Chicago to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)

  • How far is Chicago to San Francisco by plane?

    San Francisco is 1852.8 mi away from Chicago. Typically, this will take 4h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago to San Francisco Airport?

    Prices for flights from Chicago to San Francisco Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to San Francisco Airport?

  • How old do you have to be to fly from Chicago to San Francisco Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to San Francisco?

  • What is the most popular airline from Chicago to San Francisco?


Best airlines flying from Chicago to San Francisco

Compare and see reviews for airlines that fly from Chicago to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $88Free CancellationRating
6.0
3,428 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
8.0
8,456 reviews
Search Delta flights
United AirlinesPriceFrom $141Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $161Free CancellationRating
8.0
9,686 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $264Free CancellationRating
8.1
4,587 reviews
Search Southwest flights
  • Southwest Flights From Chicago to San Francisco

    Southwest operates around 5 flights from Chicago to San Francisco every week. The average price of these flights found in the last 72 hours has been $431, but momondo users have found Southwest deals from Chicago to San Francisco from as low as $264 round-trip. Southwest has been scored 8.1/10 in 4,587 reviews.

  • Alaska Airlines Flights From Chicago to San Francisco

    $161 is the best Alaska Airlines flight deal from Chicago to San Francisco found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $305, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 9,688 user reviews) flies into San Francisco from Chicago 1 time in an average week so prices can vary.


Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Hayward
Modesto
South San Francisco
Calistoga
Santa Clara
Fremont
Daly City
Roseville
Sonoma
Berkeley
Bodega Bay
Redwood City
Sunnyvale
Vallejo
Palo Alto
Burlingame
Milpitas
Half Moon Bay

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to San Francisco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Chicago.

Can I find flights from Chicago to San Francisco with flexible booking policies on momondo?

Yes. All flights to San Francisco from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to San Francisco?

Once you have performed a search for Chicago to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to San Francisco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.


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