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Cheap flights from San Francisco to Chicago from $72

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 9/26. 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
1:27 pm - 10:28 pmSFO-ORD
7h 01m1 stop
Frontier Logo
6:00 am - 11:29 amORD-SFO
7h 29m1 stop
$169Frontier
Find Deal
Sun, Aug 24 - Thu, Aug 28
Frontier Logo
2:33 pm - 11:24 pmSFO-ORD
6h 51m1 stop
Frontier Logo
7:39 pm - 12:25 amORD-SFO
6h 46m1 stop
$174Frontier
Find Deal
Mon, Dec 8 - Fri, Dec 12
Frontier Logo
10:37 am - 11:07 pmSFO-ORD
10h 30m1 stop
Frontier Logo
9:56 pm - 7:41 amORD-SFO
11h 45m1 stop
$178Frontier
Find Deal
Fri, Jul 25 - Sun, Jul 27
American Airlines Logo
11:08 pm - 5:24 amSFO-ORD
4h 16mnonstop
American Airlines Logo
6:50 pm - 9:33 pmORD-SFO
4h 43mnonstop
$187American Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
American Airlines Logo
2:26 pm - 8:48 pmSFO-ORD
4h 22mnonstop
American Airlines Logo
5:39 pm - 8:13 pmORD-SFO
4h 34mnonstop
$188American Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
7:00 am - 1:32 pmSFO-ORD
4h 32mnonstop
United Airlines Logo
6:35 pm - 9:23 pmORD-SFO
4h 48mnonstop
$197United Airlines
Find Deal
Tue, Aug 26 - Wed, Aug 27
Alaska Airlines Logo
12:03 pm - 11:39 pmSFO-ORD
9h 36m1 stop
Alaska Airlines Logo
7:18 pm - 10:06 pmORD-SFO
4h 48mnonstop
$205Alaska Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 19
United Airlines Logo
3:00 pm - 9:24 pmSFO-ORD
4h 24mnonstop
United Airlines Logo
6:55 am - 9:40 amORD-SFO
4h 45mnonstop
$207United Airlines
Find Deal
Wed, Sep 17 - Sun, Dec 14
Alaska Airlines Logo
10:26 am - 11:59 pmSFO-ORD
11h 33m1 stop
Alaska Airlines Logo
8:20 am - 2:01 pmORD-SFO
7h 41m1 stop
$216Alaska Airlines
Find Deal
Wed, Oct 15 - Tue, Oct 21
Hawaiian Airlines Logo
2:40 pm - 11:59 pmSFO-ORD
7h 19m1 stop
Hawaiian Airlines Logo
8:20 am - 2:01 pmORD-SFO
7h 41m1 stop
$226Hawaiian Airlines
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Sat, Oct 11 - Tue, Oct 14

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

Our best Frontier deals on San Francisco to Chicago O'Hare Intl Airport flight tickets
Frontier
Aug 24
SFO1:27 pmSan Francisco
7h 01m
1 stop
ORD10:28 pmChicago O'Hare Intl
Aug 28
ORD6:00 amChicago O'Hare Intl
7h 29m
1 stop
SFO11:29 amSan Francisco
$169
Find similar
Frontier
Dec 8
SFO2:33 pmSan Francisco
6h 51m
1 stop
ORD11:24 pmChicago O'Hare Intl
Dec 12
ORD7:39 pmChicago O'Hare Intl
6h 46m
1 stop
SFO12:25 amSan Francisco
$174
Find similar
Frontier
Jul 25
SFO10:37 amSan Francisco
10h 30m
1 stop
ORD11:07 pmChicago O'Hare Intl
Jul 27
ORD9:56 pmChicago O'Hare Intl
11h 45m
1 stop
SFO7:41 amSan Francisco
$178
Find similar

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
Aug 23
SFO11:08 pmSan Francisco
4h 16m
ORD5:24 amChicago O'Hare Intl
Aug 30
ORD6:50 pmChicago O'Hare Intl
4h 43m
SFO9:33 pmSan Francisco
$187
Find similar
American Airlines
Aug 23
SFO2:26 pmSan Francisco
4h 22m
ORD8:48 pmChicago O'Hare Intl
Aug 30
ORD5:39 pmChicago O'Hare Intl
4h 34m
SFO8:13 pmSan Francisco
$188
Find similar
American Airlines
Aug 27
SFO2:26 pmSan Francisco
4h 22m
ORD8:48 pmChicago O'Hare Intl
Sep 3
ORD6:45 amChicago O'Hare Intl
4h 39m
SFO9:24 amSan Francisco
$196
Find similar

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 $411. 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 $507.

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 evening is the least expensive time of day to depart. momondo users have found prices as low as $420 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $482. 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 $367 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 $296 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 9% 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 July 2025, prices for San Francisco to Chicago O'Hare Intl Airport flights are approximately 34% 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

$72

Fastest flight time

4h 09m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from San Francisco in the past 72 hours is $72. The best round-trip flight deal from San Francisco to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $169.
The fastest flight from San Francisco to Chicago O'Hare Intl Airport takes 4h 09m
Direct flights go from San Francisco to Chicago O'Hare Intl Airport every day.
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  • 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 09m 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
2,571 reviews
Search Hawaiian Airlines flights
FrontierPriceFrom $126Free CancellationRating
5.9
3,261 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
8.0
7,956 reviews
Search Delta flights
Spirit AirlinesPriceFrom $143Free CancellationRating
6.3
8,046 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $175Free 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 $204Free CancellationRating
7.4
8,858 reviews
Search United Airlines flights
SouthwestPriceFrom $207Free CancellationRating
8.0
4,244 reviews
Search Southwest flights

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

    Alaska Airlines flight deals from San Francisco to Chicago O'Hare Intl Airport start from $175 round-trip. Over the 7 Alaska Airlines flights for this route in a normal week, average airfare is usually $331 round-trip - but some users have found much cheaper deals with momondo.

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

    Hawaiian Airlines is also a popular choice for this route. Hawaiian Airlines flight deals for San Francisco to Chicago O'Hare Intl Airport start from as low as $108 round-trip, depending on your selected dates, with average Hawaiian Airlines deals seen on momondo around $287. Hawaiian Airlines operates 7 flights to Chicago O'Hare Intl Airport from San Francisco in an average week. Users have rated it 7.8/10 across 2,571 reviews.

Traveling to a place near Chicago?

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

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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