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Cheap flights from Chicago to San Francisco from $53

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 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Frontier Logo
5:12 pm - 11:04 pmORD-SFO
7h 52m1 stop
Frontier Logo
1:20 pm - 10:20 pmSFO-ORD
7h 00m1 stop
$94Frontier
Find Deal
Thu, Oct 9 - Mon, Oct 13
Frontier Logo
9:56 pm - 7:41 amORD-SFO
11h 45m1 stop
Frontier Logo
10:37 am - 11:07 pmSFO-ORD
10h 30m1 stop
$104Frontier
Find Deal
Sun, Aug 10 - Mon, Aug 18
Frontier Logo
12:30 pm - 9:21 pmORD-SFO
10h 51m1 stop
Frontier Logo
10:19 am - 10:34 pmSFO-ORD
10h 15m1 stop
$105Frontier
Find Deal
Sat, Sep 6 - Mon, Sep 8
Southwest Logo
11:10 am - 1:45 pmMDW-SFO
4h 35mnonstop
Southwest Logo
1:15 pm - 7:20 pmSFO-MDW
4h 05mnonstop
$179Southwest
Find Deal
Thu, Sep 4 - Sun, Sep 7
American Airlines Logo
6:45 am - 9:15 amORD-SFO
4h 30mnonstop
American Airlines Logo
11:25 pm - 5:42 amSFO-ORD
4h 17mnonstop
$188American Airlines
Find Deal
Sun, Aug 31 - Sat, Sep 6
Southwest Logo
8:15 am - 10:50 amMDW-SFO
4h 35mnonstop
Southwest Logo
10:20 am - 4:25 pmSFO-MDW
4h 05mnonstop
$188Southwest
Find Deal
Sat, Aug 23 - Sat, Aug 30
American Airlines Logo
9:50 am - 12:30 pmORD-SFO
4h 40mnonstop
American Airlines Logo
6:10 am - 12:30 pmSFO-ORD
4h 20mnonstop
$189American Airlines
Find Deal
Sat, Aug 23 - Sun, Aug 31
Hawaiian Airlines Logo
7:18 pm - 10:06 pmORD-SFO
4h 48mnonstop
Hawaiian Airlines Logo
11:55 am - 6:18 pmSFO-ORD
4h 23mnonstop
$191Hawaiian Airlines
Find Deal
Sat, Aug 16 - Mon, Aug 18
 Logo
7:18 pm - 10:06 pmORD-SFO
4h 48mnonstop
 Logo
5:45 am - 9:16 pmSFO-ORD
13h 31m1 stop
Sat, Aug 16 - Mon, Aug 18
 Logo
7:18 pm - 10:06 pmORD-SFO
4h 48mnonstop
 Logo
10:29 pm - 10:39 amSFO-ORD
10h 10m1 stop
Sat, Aug 16 - Sat, Aug 23

Frontier flights from Chicago to San Francisco

Our best Frontier deals on Chicago to San Francisco flight tickets
Frontier
Oct 9
ORD5:12 pmChicago O'Hare Intl
7h 52m
1 stop
SFO11:04 pmSan Francisco
Oct 13
SFO1:20 pmSan Francisco
7h 00m
1 stop
ORD10:20 pmChicago O'Hare Intl
Frontier
Aug 10
ORD9:56 pmChicago O'Hare Intl
11h 45m
1 stop
SFO7:41 amSan Francisco
Aug 18
SFO10:37 amSan Francisco
10h 30m
1 stop
ORD11:07 pmChicago O'Hare Intl
Frontier
Sep 6
ORD12:30 pmChicago O'Hare Intl
10h 51m
1 stop
SFO9:21 pmSan Francisco
Sep 8
SFO10:19 amSan Francisco
10h 15m
1 stop
ORD10:34 pmChicago O'Hare Intl

Southwest flights from Chicago to San Francisco

Our best Southwest deals on Chicago to San Francisco flight tickets
Southwest
Sep 4
MDW11:10 amChicago Midway
4h 35m
SFO1:45 pmSan Francisco
Sep 7
SFO1:15 pmSan Francisco
4h 05m
MDW7:20 pmChicago Midway
Southwest
Aug 23
MDW8:15 amChicago Midway
4h 35m
SFO10:50 amSan Francisco
Aug 30
SFO10:20 amSan Francisco
4h 05m
MDW4:25 pmChicago Midway
Southwest
Aug 23
MDW8:15 amChicago Midway
4h 35m
SFO10:50 amSan Francisco
Sep 20
SFO10:20 amSan Francisco
4h 05m
MDW4:25 pmChicago Midway

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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $287.

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 Thursday when prices can be found for as low as $359. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $522.

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 evening. Our users have found flights to San Francisco in the evening for as low as $381. Flights in the afternoon are often more expensive with an average ticket price of $434.

What is the cheapest Chicago to San Francisco flight route?

Fly from Chicago O'Hare Intl 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 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $315 when searching 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 $270 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.

Can stopping save me money on Chicago to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Chicago to San Francisco.

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

As of July 2025, prices for Chicago to San Francisco flights are approximately 26% cheaper 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

$53

Fastest flight time

4h 30m

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 $53. The best round-trip flight deal from Chicago to San Francisco found on momondo in the last 72 hours is $94.
The fastest flight from Chicago to San Francisco takes 4h 30m
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 30m 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 $61Free CancellationRating
5.9
3,286 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,545 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $128Free CancellationRating
8.0
7,982 reviews
Search Delta flights
United AirlinesPriceFrom $179Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $187Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $226Free CancellationRating
8.0
4,266 reviews
Search Southwest flights
  • Alaska Airlines Flights From Chicago to San Francisco

    Alaska Airlines operates around 2 flights from Chicago to San Francisco every week. The average price of these flights found in the last 72 hours has been $288, but momondo users have found Alaska Airlines deals from Chicago to San Francisco from as low as $187 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 reviews.

  • Southwest Flights From Chicago to San Francisco

    $226 is the best Southwest flight deal from Chicago to San Francisco found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $386, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,266 user reviews) flies into San Francisco from Chicago 6 times 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
Modesto
Hayward
Calistoga
Sonoma
Bodega Bay
Roseville
Santa Clara
Daly City
Big Sur
Berkeley
Walnut Creek
South San Francisco
Fremont
Redwood City
Sunnyvale
Vallejo
Half Moon Bay
Pacific Grove

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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1 adult
Tue 7/8
Tue 7/15

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