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Cheap flights from San Francisco to Chicago from $100

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Chicago departing on 11/9. 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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Cheap round-trip flights

Frontier Logo
7:07 pm - 9:28 pmSFO-ORD
24h 21m1 stop
Frontier Logo
7:15 am - 10:27 pmORD-SFO
17h 12m1 stop
$207Frontier
Find Deal
Fri, Oct 3 - Tue, Oct 7
American Airlines Logo
12:00 pm - 11:59 pmSFO-ORD
9h 59m1 stop
American Airlines Logo
8:35 am - 11:24 amORD-SFO
4h 49mnonstop
$208American Airlines
Find Deal
Wed, Nov 5 - Sat, Nov 8
Alaska Airlines Logo
8:00 am - 12:24 amSFO-ORD
14h 24m1 stop
Alaska Airlines Logo
2:54 pm - 10:01 pmORD-SFO
9h 07m1 stop
$210Alaska Airlines
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Wed, Nov 12 - Thu, Nov 13
Logo
3:25 pm - 11:53 pmSFO-ORD
6h 28m1 stop
Logo
8:00 am - 1:50 pmORD-SFO
7h 50m1 stop
$212
Find Deal
Thu, Oct 23 - Wed, Oct 29
Alaska Airlines Logo
2:40 pm - 11:59 pmSFO-ORD
7h 19m1 stop
Alaska Airlines Logo
6:00 am - 11:50 pmORD-SFO
19h 50m1 stop
$213Alaska Airlines
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Wed, Oct 22 - Thu, Oct 30
Logo
8:00 am - 8:48 pmSFO-ORD
10h 48m1 stop
Logo
7:15 am - 10:55 amORD-SFO
29h 40m2 stops
$221
Find Deal
Wed, Oct 8 - Tue, Oct 14
Delta Logo
12:35 am - 11:28 amSFO-ORD
8h 53m1 stop
Delta Logo
6:05 pm - 11:33 pmORD-SFO
7h 28m1 stop
$231Delta
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Fri, Oct 24 - Tue, Oct 28
Delta Logo
1:45 pm - 11:50 pmSFO-ORD
8h 05m1 stop
Delta Logo
6:05 pm - 11:33 pmORD-SFO
7h 28m1 stop
$234Delta
Find Deal
Mon, Oct 20 - Wed, Oct 22
United Airlines Logo
10:40 pm - 5:00 amSFO-ORD
4h 20mnonstop
United Airlines Logo
6:15 am - 9:04 amORD-SFO
4h 49mnonstop
$246United Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 3
United Airlines Logo
11:33 pm - 5:55 amSFO-ORD
4h 22mnonstop
United Airlines Logo
12:53 pm - 3:30 pmORD-SFO
4h 37mnonstop
$255United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4

Alaska Airlines flights from San Francisco to Chicago O'Hare Intl Airport

Our best Alaska Airlines deals on San Francisco to Chicago O'Hare Intl Airport flight tickets
Alaska Airlines
Nov 12
SFO8:00 amSan Francisco
14h 24m
1 stop
ORD12:24 amChicago O'Hare Intl
Nov 13
ORD2:54 pmChicago O'Hare Intl
9h 07m
1 stop
SFO10:01 pmSan Francisco
$210
Find similar
Alaska Airlines
Oct 22
SFO2:40 pmSan Francisco
7h 19m
1 stop
ORD11:59 pmChicago O'Hare Intl
Oct 30
ORD6:00 amChicago O'Hare Intl
19h 50m
1 stop
SFO11:50 pmSan Francisco
$213
Find similar
Alaska Airlines
Oct 23
SFO6:45 amSan Francisco
10h 14m
1 stop
ORD6:59 pmChicago O'Hare Intl
Nov 8
ORD2:54 pmChicago O'Hare Intl
9h 01m
1 stop
SFO9:55 pmSan Francisco
$216
Find similar

Delta flights from San Francisco to Chicago O'Hare Intl Airport

Our best Delta deals on San Francisco to Chicago O'Hare Intl Airport flight tickets
Delta
Oct 24
SFO12:35 amSan Francisco
8h 53m
1 stop
ORD11:28 amChicago O'Hare Intl
Oct 28
ORD6:05 pmChicago O'Hare Intl
7h 28m
1 stop
SFO11:33 pmSan Francisco
$231
Find similar
Delta
Oct 20
SFO1:45 pmSan Francisco
8h 05m
1 stop
ORD11:50 pmChicago O'Hare Intl
Oct 22
ORD6:05 pmChicago O'Hare Intl
7h 28m
1 stop
SFO11:33 pmSan Francisco
$234
Find similar
Delta
Oct 2
SFO12:45 amSan Francisco
5h 40m
1 stop
ORD8:25 amChicago O'Hare Intl
Oct 9
ORD7:37 amChicago O'Hare Intl
17h 56m
1 stop
SFO11:33 pmSan Francisco
$240
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Chicago O'Hare Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 13, 2025.
Use the filters below to find and compare flights from San Francisco to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 10/3

7:07 pm-9:28 pm

1 stop24h 21m

Chicago O'Hare Intl

Tue 10/7

7:15 am-10:27 pm

1 stop17h 12m

$207

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 11/5

12:00 pm-11:59 pm

1 stop9h 59m

Chicago O'Hare Intl

Sat 11/8

8:35 am-11:24 am

Nonstop4h 49m

$208

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 11/12

8:00 am-12:24 am

1 stop14h 24m

Chicago O'Hare Intl

Thu 11/13

2:54 pm-10:01 pm

1 stop9h 07m

$210

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 10/23

3:25 pm-11:53 pm

1 stop6h 28m

Chicago O'Hare Intl

Wed 10/29

8:00 am-1:50 pm

1 stop7h 50m

$212

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 10/22

2:40 pm-11:59 pm

1 stop7h 19m

Chicago O'Hare Intl

Thu 10/30

6:00 am-11:50 pm

1 stop19h 50m

$213

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 10/8

8:00 am-8:48 pm

1 stop10h 48m

Chicago O'Hare Intl

Tue 10/14

7:15 am-10:55 am

2 stops29h 40m

$221

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 10/24

12:35 am-11:28 am

1 stop8h 53m

Chicago O'Hare Intl

Tue 10/28

6:05 pm-11:33 pm

1 stop7h 28m

$231

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 10/20

1:45 pm-11:50 pm

1 stop8h 05m

Chicago O'Hare Intl

Wed 10/22

6:05 pm-11:33 pm

1 stop7h 28m

$234

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 10/31

10:40 pm-5:00 am

Nonstop4h 20m

Chicago O'Hare Intl

Mon 11/3

6:15 am-9:04 am

Nonstop4h 49m

$246

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 9/30

11:33 pm-5:55 am

Nonstop4h 22m

Chicago O'Hare Intl

Sat 10/4

12:53 pm-3:30 pm

Nonstop4h 37m

$255

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from San Francisco to Chicago O'Hare Intl Airport

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 cheapest month to fly to Chicago O'Hare Intl Airport?

The month of April is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from San Francisco averaging around $308.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $399. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $513.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from San Francisco in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $413 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $465. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest San Francisco to Chicago O'Hare Intl flight route?

Fly from San Francisco to Chicago O'Hare Intl for the best San Francisco - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $365 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from San Francisco for as low as $291 on momondo.

What cabin class options are available on San Francisco to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on San Francisco to Chicago O'Hare Intl 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 San Francisco to Chicago O'Hare Intl Airport flights?

You could potentially save up to 22% on your flight if you consider stops on a San Francisco to Chicago O'Hare Intl Airport flight.

How have San Francisco to Chicago O'Hare Intl Airport flight prices changed over time?

As of September 2025, prices for San Francisco to Chicago O'Hare Intl Airport flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Chicago O'Hare Intl Airport

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

Cheap San Francisco to Chicago O'Hare Intl Airport (SFO to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Chicago O'Hare Intl Airport

Best Price Found

$160

Fastest flight time

3h 57m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from San Francisco in the past 72 hours is $160. The best round-trip flight deal from San Francisco to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $303.
The fastest flight from San Francisco to Chicago O'Hare Intl Airport takes 3h 57m
Direct flights go from San Francisco to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is San Francisco to Chicago O'Hare Intl by plane?

    There are 1838.3 mi between San Francisco and Chicago O'Hare Intl. Typically, this will take 4h 06m by plane in normal conditions.

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

    Prices for flights from San Francisco Airport to Chicago O'Hare Intl Airport were last updated today.

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

  • How old do you have to be to fly from San Francisco Airport to Chicago O'Hare Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents required for your trip to Chicago O'Hare Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to Chicago O'Hare Intl Airport?

  • What is the most popular airline from San Francisco to Chicago O'Hare Intl Airport?

Best airlines flying from San Francisco to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from San Francisco to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $127Free CancellationRating
5.8
3,176 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
7,960 reviews
Search Delta flights
Spirit AirlinesPriceFrom $143Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $185Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $196Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $207Free CancellationRating
7.4
8,936 reviews
Search United Airlines flights

  • United Airlines Flights From San Francisco to Chicago O'Hare Intl Airport

    United Airlines flight deals from San Francisco to Chicago O'Hare Intl Airport start from $207 round-trip. Over the 70 United Airlines flights for this route in a normal week, average airfare is usually $411 round-trip - but some users have found much cheaper deals with momondo.

  • American Airlines Flights From San Francisco to Chicago O'Hare Intl Airport

    American Airlines is also a popular choice for this route. American Airlines flight deals for San Francisco to Chicago O'Hare Intl Airport start from as low as $197 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $348. American Airlines operates 36 flights to Chicago O'Hare Intl Airport from San Francisco in an average week. Users have rated it 7.2/10 across 10,000 reviews.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Rockford
Schaumburg
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Hammond
Orland Park
Tinley Park
Elgin
Aurora
Janesville
Benton Harbor

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Chicago. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for San Francisco to Chicago flights to just show those with flexible booking policies.

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

Once you have performed a search for San Francisco to Chicago 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 San Francisco to Chicago right now. Can momondo alert me if prices change?

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

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