What is the cheapest airline that flies from San Francisco to Chicago O'Hare Intl?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco to Chicago O'Hare Intl

How many flights depart from San Francisco to Chicago O'Hare Intl Airport on average per day?

As of January 2026, 47 flights take off from San Francisco and land in Chicago O'Hare Intl Airport each day. The most common flight departure time for this route is 06:00, with 50% of daily flights taking off at midday.

How often are flights from San Francisco to Chicago delayed?

Historically, on average around 10% of flights between San Francisco and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 185 minutes.

How many flights depart from San Francisco to Chicago O'Hare Intl Airport on average per week?

335 flights are operational weekly from San Francisco to Chicago O'Hare Intl Airport as of January 2026. The most popular departure day for this route is Fri, with 19% of flights per week taking off on this day.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for San Francisco to Chicago flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on San Francisco to Chicago flights?

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

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 are updated daily.

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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify 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 necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$165 Cheap Flights from San Francisco to Chicago O'Hare Intl Airport in 2026

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One-way

Last minute

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Cheap return flights

Enter your travel dates to find the best prices.

23:59 - 06:19

SFO

ORD

4h 20mdirect

18:17 - 21:20

ORD

SFO

5h 03mdirect

$362United Airlines

Tue, 17 Feb - Fri, 20 Feb

06:35 - 18:40

SFO

ORD

10h 05m

1 stop

16:10 - 22:52

ORD

SFO

8h 42m

1 stop

$365Alaska Airlines

Tue, 14 Apr - Fri, 17 Apr

09:00 - 19:52

SFO

ORD

8h 52m

1 stop

08:50 - 23:48

ORD

SFO

16h 58m

1 stop

$367Alaska Airlines

Thu, 23 Apr - Tue, 28 Apr

22:45 - 09:41

SFO

ORD

8h 56m

1 stop

07:40 - 17:56

ORD

SFO

12h 16m

2 stops

$370Delta

Sat, 14 Feb - Wed, 18 Feb

14:39 - 23:52

SFO

ORD

7h 13m

1 stop

14:20 - 22:41

ORD

SFO

10h 21m

1 stop

$377Delta

Sat, 28 Feb - Mon, 2 Mar

09:46 - 18:05

SFO

ORD

6h 19m

1 stop

13:57 - 19:07

ORD

SFO

7h 10m

1 stop

$380Delta

Tue, 31 Mar - Mon, 6 Apr

14:20 - 23:54

SFO

ORD

7h 34m

1 stop

07:10 - 14:42

ORD

SFO

9h 32m

1 stop

$383Delta

Fri, 13 Mar - Wed, 18 Mar

23:59 - 06:19

SFO

ORD

4h 20mdirect

06:25 - 09:27

ORD

SFO

5h 02mdirect

$384United Airlines

Mon, 16 Feb - Sat, 21 Feb

22:55 - 12:50

SFO

ORD

11h 55m

1 stop

14:40 - 20:15

ORD

SFO

7h 35m

1 stop

$387Southwest

Sat, 28 Mar - Sat, 4 Apr

05:50 - 16:18

SFO

ORD

8h 28m

1 stop

07:10 - 14:42

ORD

SFO

9h 32m

1 stop

$388Delta

Sat, 21 Mar - Tue, 24 Mar

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

Our best Southwest deals on San Francisco to Chicago O'Hare Intl Airport flight tickets

Southwest

28 Mar

SFO22:55San Francisco

11h 55m

1 stop

ORD12:50Chicago O'Hare Intl

4 Apr

ORD14:40Chicago O'Hare Intl

7h 35m

1 stop

SFO20:15San Francisco

$387

Southwest

7 Apr

SFO11:25San Francisco

10h 30m

2 stops

ORD23:55Chicago O'Hare Intl

11 Apr

ORD07:00Chicago O'Hare Intl

6h 50m

1 stop

SFO11:50San Francisco

$396

Southwest

7 Apr

SFO11:25San Francisco

10h 30m

2 stops

ORD23:55Chicago O'Hare Intl

11 Apr

ORD06:15Chicago O'Hare Intl

13h 10m

2 stops

SFO17:25San Francisco

$409

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

14 Feb

SFO22:45San Francisco

8h 56m

1 stop

ORD09:41Chicago O'Hare Intl

18 Feb

ORD07:40Chicago O'Hare Intl

12h 16m

2 stops

SFO17:56San Francisco

$370

Delta

27 Feb

SFO00:40San Francisco

9h 05m

1 stop

ORD11:45Chicago O'Hare Intl

5 Mar

ORD14:20Chicago O'Hare Intl

10h 21m

1 stop

SFO22:41San Francisco

$377

Delta

31 Mar

SFO22:40San Francisco

8h 30m

1 stop

ORD09:10Chicago O'Hare Intl

5 Apr

ORD07:10Chicago O'Hare Intl

9h 32m

1 stop

SFO14:42San Francisco

$380

momondo Fare Finder

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 17/2

23:59-06:19

Nonstop4h 20m

Chicago O'Hare Intl

Fri 20/2

18:17-21:20

Nonstop5h 03m

$362

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 14/4

06:35-18:40

1 stop10h 05m

Chicago O'Hare Intl

Fri 17/4

16:10-22:52

1 stop8h 42m

$365

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 23/4

09:00-19:52

1 stop8h 52m

Chicago O'Hare Intl

Tue 28/4

08:50-23:48

1 stop16h 58m

$367

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 14/2

22:45-09:41

1 stop8h 56m

Chicago O'Hare Intl

Wed 18/2

07:40-17:56

2 stops12h 16m

$370

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 28/2

14:39-23:52

1 stop7h 13m

Chicago O'Hare Intl

Mon 2/3

14:20-22:41

1 stop10h 21m

$377

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 31/3

09:46-18:05

1 stop6h 19m

Chicago O'Hare Intl

Mon 6/4

13:57-19:07

1 stop7h 10m

$380

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 13/3

14:20-23:54

1 stop7h 34m

Chicago O'Hare Intl

Wed 18/3

07:10-14:42

1 stop9h 32m

$383

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Mon 16/2

23:59-06:19

Nonstop4h 20m

Chicago O'Hare Intl

Sat 21/2

06:25-09:27

Nonstop5h 02m

$384

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 28/3

22:55-12:50

1 stop11h 55m

Chicago O'Hare Intl

Sat 4/4

14:40-20:15

1 stop7h 35m

$387

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 21/3

05:50-16:18

1 stop8h 28m

Chicago O'Hare Intl

Tue 24/3

07:10-14:42

1 stop9h 32m

$388

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of September is, on average, the cheapest month to fly to Chicago O'Hare Intl Airport from San Francisco, with most prices found around $458. If you are unable to visit Chicago O'Hare Intl Airport during the month of September, then departing from San Francisco during the month April is also very affordable. Most momondo users find prices during this month for around $459.

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

Our data shows that the cheapest San Francisco to Chicago O'Hare Intl Airport flights are usually those with departure times in the evening. Our users have found flights to Chicago O'Hare Intl Airport in the evening for as low as $534. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the morning when prices are around $629.

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 $548 when searching weeks before you fly. 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 $436 on momondo.

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

There is only 1 cabin class 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 January 2026, prices for San Francisco to Chicago O'Hare Intl Airport flights are approximately 25% more expensive 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 return 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

Fastest flight time	4h 21m
Direct flights	Every day

The fastest flight from San Francisco to Chicago O'Hare Intl Airport takes 4h 21m

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?
The distance between San Francisco and Chicago O'Hare Intl is about 2958.4 km. Typically, this will take 4h 21m 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 are updated daily.
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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify 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 necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Francisco to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between San Francisco and Chicago O'Hare Intl Airport, the leading plane model is Airbus A321neo, making up 21.18% of the total bookings. Other popular models include Boeing 737-800 with 16.31%, Boeing 757-300 with 15.38%, and Boeing 737-900 with 9.30%.

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Why use momondo?

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

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 Chicago from San Francisco.

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

momondo does allow users to show only those flights to Chicago from San Francisco which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential San Francisco to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of San Francisco to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Chicago O'Hare Intl Airport trip

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Cheap flights from San Francisco to Chicago from $165

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 28/2. 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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Southwest flights from San Francisco to Chicago O'Hare Intl Airport

Our best Southwest deals on San Francisco to Chicago O'Hare Intl Airport flight tickets

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

momondo Fare Finder

Use the filters below to find and compare flights from San Francisco to Chicago O'Hare Intl Airport that are best for you.

See travel insights to Chicago from

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

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

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

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?

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

There is only 1 cabin class 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 January 2026, prices for San Francisco to Chicago O'Hare Intl Airport flights are approximately 25% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from San Francisco to Chicago O'Hare Intl?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco to Chicago O'Hare Intl

How often are flights from San Francisco to Chicago delayed?

Historically, on average around 10% of flights between San Francisco and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 185 minutes.

What is the most punctual flight time for San Francisco to Chicago flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Francisco to Chicago flights?

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

How many flights depart from San Francisco to Chicago O'Hare Intl Airport on average per day?

As of January 2026, 47 flights take off from San Francisco and land in Chicago O'Hare Intl Airport each day. The most common flight departure time for this route is 06:00, with 50% of daily flights taking off at midday.

How many flights depart from San Francisco to Chicago O'Hare Intl Airport on average per week?

335 flights are operational weekly from San Francisco to Chicago O'Hare Intl Airport as of January 2026. The most popular departure day for this route is Fri, with 19% of flights per week taking off on this day.

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

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

Fastest flight time

Direct flights

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

When did momondo last update prices 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?

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

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

Travelling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Chicago

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo