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Cheap flights from San Francisco to Chicago from $109

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 12/10. 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

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Alaska Airlines Logo
7:00 am - 11:50 pmSFO-ORD
14h 50m1 stop
Alaska Airlines Logo
8:58 pm - 8:15 amORD-SFO
13h 17m1 stop
$249Alaska Airlines
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Tue, Dec 16 - Sat, Dec 20
Alaska Airlines Logo
7:35 am - 11:59 pmSFO-ORD
14h 24m1 stop
Alaska Airlines Logo
8:55 am - 9:46 pmORD-SFO
14h 51m1 stop
$250Alaska Airlines
Find Deal
Fri, Dec 5 - Tue, Dec 9
Multiple Airlines Logo
10:23 pm - 10:41 amSFO-ORD
10h 18m1 stop
Multiple Airlines Logo
2:54 pm - 10:18 pmORD-SFO
9h 24m1 stop
$254Multiple Airlines
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Thu, Nov 6 - Fri, Nov 7
Frontier Logo
10:23 pm - 10:41 amSFO-ORD
10h 18m1 stop
Frontier Logo
6:00 am - 12:14 amORD-SFO
20h 14m1 stop
$255Frontier
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Thu, Oct 30 - Thu, Nov 6
Frontier Logo
10:23 pm - 11:41 amSFO-ORD
11h 18m1 stop
Frontier Logo
6:05 pm - 10:27 pmORD-SFO
6h 22m1 stop
$256Frontier
Find Deal
Sat, Nov 1 - Tue, Nov 4
Multiple Airlines Logo
6:21 am - 6:34 pmSFO-ORD
10h 13m1 stop
Multiple Airlines Logo
2:05 pm - 10:45 pmORD-SFO
10h 40m2 stops
$257Multiple Airlines
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Sat, Dec 6 - Wed, Dec 10
Delta Logo
10:57 pm - 9:12 amSFO-ORD
8h 15m1 stop
Delta Logo
7:37 am - 7:05 pmORD-SFO
13h 28m1 stop
$258Delta
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Fri, Oct 31 - Sat, Nov 8
Delta Logo
6:05 am - 11:44 pmSFO-ORD
15h 39m1 stop
Delta Logo
7:30 am - 4:01 pmORD-SFO
10h 31m1 stop
$263Delta
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Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
11:18 pm - 5:29 amSFO-ORD
4h 11mnonstop
American Airlines Logo
5:39 pm - 8:30 pmORD-SFO
4h 51mnonstop
$277American Airlines
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Tue, Dec 2 - Tue, Dec 9
American Airlines Logo
11:15 pm - 5:38 amSFO-ORD
4h 23mnonstop
American Airlines Logo
8:50 am - 3:03 pmORD-SFO
8h 13m1 stop
$279American Airlines
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Mon, Nov 3 - Tue, Nov 4

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 31
SFO10:57 pmSan Francisco
8h 15m
1 stop
ORD9:12 amChicago O'Hare Intl
Nov 8
ORD7:37 amChicago O'Hare Intl
13h 28m
1 stop
SFO7:05 pmSan Francisco
$258
Find similar
Delta
Mar 10
SFO6:05 amSan Francisco
15h 39m
1 stop
ORD11:44 pmChicago O'Hare Intl
Mar 11
ORD7:30 amChicago O'Hare Intl
10h 31m
1 stop
SFO4:01 pmSan Francisco
$263
Find similar
Delta
Dec 6
SFO7:37 pmSan Francisco
10h 27m
2 stops
ORD8:04 amChicago O'Hare Intl
Dec 7
ORD2:14 pmChicago O'Hare Intl
10h 17m
1 stop
SFO10:31 pmSan Francisco
$268
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American Airlines flights from San Francisco to Chicago O'Hare Intl Airport

Our best American Airlines deals on San Francisco to Chicago O'Hare Intl Airport flight tickets
American Airlines
Dec 2
SFO11:18 pmSan Francisco
4h 11m
ORD5:29 amChicago O'Hare Intl
Dec 9
ORD5:39 pmChicago O'Hare Intl
4h 51m
SFO8:30 pmSan Francisco
$277
Find similar
American Airlines
Nov 3
SFO11:15 pmSan Francisco
4h 23m
ORD5:38 amChicago O'Hare Intl
Nov 4
ORD8:50 amChicago O'Hare Intl
8h 13m
1 stop
SFO3:03 pmSan Francisco
$279
Find similar
American Airlines
Dec 10
SFO1:11 pmSan Francisco
4h 34m
ORD7:45 pmChicago O'Hare Intl
Dec 17
ORD11:10 amChicago O'Hare Intl
4h 58m
SFO2:08 pmSan Francisco
$290
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 October 16, 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

Tue 12/16

7:00 am-11:50 pm

1 stop14h 50m

Chicago O'Hare Intl

Sat 12/20

8:58 pm-8:15 am

1 stop13h 17m

$249

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 12/5

7:35 am-11:59 pm

1 stop14h 24m

Chicago O'Hare Intl

Tue 12/9

8:55 am-9:46 pm

1 stop14h 51m

$250

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 11/6

10:23 pm-10:41 am

1 stop10h 18m

Chicago O'Hare Intl

Fri 11/7

2:54 pm-10:18 pm

1 stop9h 24m

$254

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 10/30

10:23 pm-10:41 am

1 stop10h 18m

Chicago O'Hare Intl

Thu 11/6

6:00 am-12:14 am

1 stop20h 14m

$255

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 11/1

10:23 pm-11:41 am

1 stop11h 18m

Chicago O'Hare Intl

Tue 11/4

6:05 pm-10:27 pm

1 stop6h 22m

$256

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 12/6

6:21 am-6:34 pm

1 stop10h 13m

Chicago O'Hare Intl

Wed 12/10

2:05 pm-10:45 pm

2 stops10h 40m

$257

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 10/31

10:57 pm-9:12 am

1 stop8h 15m

Chicago O'Hare Intl

Sat 11/8

7:37 am-7:05 pm

1 stop13h 28m

$258

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 3/10

6:05 am-11:44 pm

1 stop15h 39m

Chicago O'Hare Intl

Wed 3/11

7:30 am-4:01 pm

1 stop10h 31m

$263

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 12/2

11:18 pm-5:29 am

Nonstop4h 11m

Chicago O'Hare Intl

Tue 12/9

5:39 pm-8:30 pm

Nonstop4h 51m

$277

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 11/3

11:15 pm-5:38 am

Nonstop4h 23m

Chicago O'Hare Intl

Tue 11/4

8:50 am-3:03 pm

1 stop8h 13m

$279

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 $307.

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 $403. 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 $505.

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 $408 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 $369 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 $300 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?

No. A direct flight is the cheapest option for a flight between San Francisco to Chicago O'Hare Intl Airport.

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

As of October 2025, prices for San Francisco to Chicago O'Hare Intl Airport flights are approximately 13% 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

$194

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 $194. The best round-trip flight deal from San Francisco to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $378.
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 07m 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
2,781 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $128Free CancellationRating
5.8
3,137 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
7,978 reviews
Search Delta flights
SouthwestPriceFrom $185Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $196Free CancellationRating
8.0
11,103 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $207Free CancellationRating
7.4
8,982 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 58 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 $354. American Airlines operates 39 flights to Chicago O'Hare Intl Airport from San Francisco in an average week. Users have rated it 7.2/10 across 11,040 reviews.

Traveling to a place near Chicago?

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