How long does it take to fly to San Francisco?

Flight times from Illinois to San Francisco vary, but if you’re flying out of Chicago and flying into San Francisco (one of the most popular routes), then the duration is 4h 32m on average. Another popular route from Illinois to San Francisco is flying from Peoria to San Francisco, which will take roughly 6h 41m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Illinois to San Francisco on average per day?

62 flights are operational daily from Illinois to San Francisco as of March 2026. The most popular departure time for this route is 7:00PM, with 45% of flights per day taking off in the evening.

What is the cheapest airline that flies from Illinois to San Francisco?

Frontier, Southwest, and United Airlines are the most popular carriers operating from Illinois to San Francisco

How many flights depart from Illinois to San Francisco on average per week?

As of March 2026, there are 437 flights per week flying from Illinois to San Francisco. The most common day of the week flights depart is Tue, with 19% of flights taking off on this day.

What airlines fly to San Francisco?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to San Francisco from Illinois according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 9 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to San Francisco Airport?

Prices for flights from Illinois to San Francisco Airport refresh daily.

How many operators does momondo search for flights from Illinois to San Francisco Airport?

As of March 2026, there are 8 operators available to choose from for flights from Illinois to San Francisco Airport.

How old do you have to be to fly from Illinois to San Francisco Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$93 Cheap Flights from Illinois to San Francisco in 2026

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Find the cheapest flights from Illinois to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:55 pm - 9:39 pm

MLI

SFO

25h 44m

2 stops

2:47 pm - 11:29 am

SFO

MLI

18h 42m

1 stop

$235Multiple Airlines

ma., apr. 27 - on., apr. 29

6:55 am - 7:25 pm

ORD

SFO

14h 30m

1 stop

12:33 pm - 8:53 pm

SFO

ORD

6h 20m

1 stop

$235Frontier

ti., jun. 9 - ti., jun. 16

9:27 am - 2:55 pm

MDW

SFO

7h 28m

1 stop

10:55 pm - 8:47 am

SFO

MDW

7h 52m

1 stop

$237Delta

ti., apr. 21 - on., apr. 22

4:03 pm - 8:23 am

ORD

SFO

18h 20m

2 stops

7:40 pm - 6:08 am

SFO

ORD

8h 28m

1 stop

$237Multiple Airlines

on., apr. 15 - on., apr. 22

6:00 am - 5:34 pm

MDW

SFO

13h 34m

1 stop

10:38 pm - 11:12 am

SFO

MDW

10h 34m

1 stop

$238Frontier

ma., apr. 27 - ma., mai 4

12:50 pm - 9:25 pm

MDW

SFO

10h 35m

2 stops

6:20 am - 4:35 pm

SFO

MDW

8h 15m

2 stops

$243Southwest

ti., mai 5 - ti., mai 12

9:45 pm - 12:20 am

MDW

SFO

4h 35mnonstop

5:55 am - 2:10 pm

SFO

MDW

6h 15m

1 stop

$246Southwest

to., apr. 16 - on., apr. 22

12:20 pm - 5:53 pm

PIA

SFO

7h 33m

1 stop

5:15 am - 4:13 pm

SFO

PIA

8h 58m

1 stop

$331American Airlines

lø., aug. 15 - lø., aug. 22

6:40 pm - 11:59 pm

MLI

SFO

7h 19m

1 stop

1:30 pm - 11:54 pm

SFO

MLI

8h 24m

1 stop

$331American Airlines

on., mai 13 - lø., mai 16

5:11 pm - 11:55 pm

MLI

SFO

8h 44m

1 stop

6:00 am - 4:37 pm

SFO

MLI

8h 37m

1 stop

$350Delta

ma., mai 4 - ti., mai 12

Delta flights from Illinois to San Francisco

Our best Delta deals on Illinois to San Francisco flight tickets

Delta

Apr 21

MDW9:27 amChicago Midway

7h 28m

1 stop

SFO2:55 pmSan Francisco

Apr 22

SFO10:55 pmSan Francisco

7h 52m

1 stop

MDW8:47 amChicago Midway

$237

Delta

Apr 22

MDW1:24 pmChicago Midway

7h 39m

1 stop

SFO7:03 pmSan Francisco

Apr 27

SFO10:55 pmSan Francisco

7h 52m

1 stop

MDW8:47 amChicago Midway

$258

Delta

Apr 23

MDW1:24 pmChicago Midway

7h 39m

1 stop

SFO7:03 pmSan Francisco

Apr 27

SFO9:35 pmSan Francisco

10h 21m

1 stop

MDW9:56 amChicago Midway

$279

Southwest flights from Illinois to San Francisco

Our best Southwest deals on Illinois to San Francisco flight tickets

Southwest

May 5

MDW12:50 pmChicago Midway

10h 35m

2 stops

SFO9:25 pmSan Francisco

May 12

SFO6:20 amSan Francisco

8h 15m

2 stops

MDW4:35 pmChicago Midway

$243

Southwest

Apr 16

MDW9:45 pmChicago Midway

4h 35m

SFO12:20 amSan Francisco

Apr 22

SFO5:55 amSan Francisco

6h 15m

1 stop

MDW2:10 pmChicago Midway

$246

Southwest

May 5

ORD7:45 amChicago O'Hare Intl

12h 45m

2 stops

SFO6:30 pmSan Francisco

May 12

SFO7:20 amSan Francisco

9h 30m

2 stops

ORD6:50 pmChicago O'Hare Intl

$249

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MolineSan Francisco

MLI - SFO

MLISFO

Moline Quad-City

ma. 4/27

9:55 pm-9:39 pm

2 stops25h 44m

San Francisco

on. 4/29

2:47 pm-11:29 am

1 stop18h 42m

$235

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

ti. 6/9

6:55 am-7:25 pm

1 stop14h 30m

San Francisco

ti. 6/16

12:33 pm-8:53 pm

1 stop6h 20m

$235

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

ti. 4/21

9:27 am-2:55 pm

1 stop7h 28m

San Francisco

on. 4/22

10:55 pm-8:47 am

1 stop7h 52m

$237

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

on. 4/15

4:03 pm-8:23 am

2 stops18h 20m

San Francisco

on. 4/22

7:40 pm-6:08 am

1 stop8h 28m

$237

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

ma. 4/27

6:00 am-5:34 pm

1 stop13h 34m

San Francisco

ma. 5/4

10:38 pm-11:12 am

1 stop10h 34m

$238

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

ti. 5/5

12:50 pm-9:25 pm

2 stops10h 35m

San Francisco

ti. 5/12

6:20 am-4:35 pm

2 stops8h 15m

$243

Quickest round-trip

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

to. 4/16

9:45 pm-12:20 am

Nonstop4h 35m

San Francisco

on. 4/22

5:55 am-2:10 pm

1 stop6h 15m

$246

PeoriaSan Francisco

PIA - SFO

PIASFO

Greater Peoria

lø. 8/15

12:20 pm-5:53 pm

1 stop7h 33m

San Francisco

lø. 8/22

5:15 am-4:13 pm

1 stop8h 58m

$331

MolineSan Francisco

MLI - SFO

MLISFO

Moline Quad-City

on. 5/13

6:40 pm-11:59 pm

1 stop7h 19m

San Francisco

lø. 5/16

1:30 pm-11:54 pm

1 stop8h 24m

$331

MolineSan Francisco

MLI - SFO

MLISFO

Moline Quad-City

ma. 5/4

5:11 pm-11:55 pm

1 stop8h 44m

San Francisco

ti. 5/12

6:00 am-4:37 pm

1 stop8h 37m

$350

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois 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

Prices

Airlines

Other information

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of May, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $288.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Illinois to San Francisco is on a Thursday when prices can be found for as low as $369. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $582.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Illinois to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $402. Flights in the afternoon are often more expensive with an average ticket price of $531.

What is the cheapest Illinois to San Francisco flight route?

Fly from Chicago Midway to San Francisco for the best Illinois - 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 Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $342 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Illinois for as low as $255 on momondo.

What cabin class options are available on Illinois to San Francisco flights?

There are 4 cabin classes available to choose from on Illinois 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 Illinois to San Francisco flights?

You could potentially save up to 6% on your flight if you consider stops on a Illinois to San Francisco flight.

Cheap Illinois to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to San Francisco

Best Price Found	$210
Fastest flight time	4h 10m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from Illinois in the past 72 hours is $210. The best round-trip flight deal from Illinois to San Francisco found on momondo in the last 72 hours is $339.

The fastest flight from Illinois to San Francisco takes 4h 10m

Direct flights go from Illinois to San Francisco every day.

There is 1 airport in San Francisco. From Illinois there are direct flights to San Francisco (SFO).

Search flight deals

When did momondo last update prices for flights from Illinois to San Francisco Airport?
Prices for flights from Illinois to San Francisco Airport refresh daily.
How many operators does momondo search for flights from Illinois to San Francisco Airport?
As of March 2026, there are 8 operators available to choose from for flights from Illinois to San Francisco Airport.
How old do you have to be to fly from Illinois to San Francisco Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to San Francisco?
Based on momondo bookings for flights between Illinois and San Francisco, the leading plane model is Airbus A321neo, making up 18.41% of the total bookings. Other popular models include Boeing 757-300 with 17.37%, Boeing 737-800 with 17.25%, and Boeing 737-900 with 11.98%.

Best airlines flying from Illinois to San Francisco

Compare and see reviews for airlines that fly from Illinois to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights
Frontier	PriceFrom $120	Free Cancellation	Rating 5.7 3,008 reviews	Search Frontier flights
Delta	PriceFrom $128	Free Cancellation	Rating 7.9 8,364 reviews	Search Delta flights
Southwest	PriceFrom $138	Free Cancellation	Rating 8.0 4,332 reviews	Search Southwest flights
JetBlue	PriceFrom $159	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $186	Free Cancellation	Rating 7.9 12,142 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $197	Free Cancellation	Rating 7.1 11,536 reviews	Search American Airlines flights
United Airlines	PriceFrom $207	Free Cancellation	Rating 7.4 9,525 reviews	Search United Airlines flights

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Modesto

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Berkeley

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Half Moon Bay

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Why use momondo?

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

It is quick and easy to find Illinois to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

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

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

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

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

Yes momondo offers price alerts on flights to San Francisco from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Francisco trip

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

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Cheap flights from Illinois to San Francisco from $93

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to San Francisco departing on 4/25. 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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Our best Delta deals on Illinois to San Francisco flight tickets

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How to get the cheapest flight ticket from Illinois to San Francisco

What is the cheapest month to fly to San Francisco?

What is the cheapest day to depart on your flight to San Francisco?

What is the cheapest time of day to depart on your flight to San Francisco?

What is the cheapest Illinois to San Francisco flight route?

How far in advance should I book a flight to San Francisco?

What cabin class options are available on Illinois to San Francisco flights?

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

What is the cheapest airline that flies from Illinois to San Francisco?

What airlines fly to San Francisco?

How many flights depart from Illinois to San Francisco on average per day?

How many flights depart from Illinois to San Francisco on average per week?

How long does it take to fly to San Francisco?

Cheap Illinois to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to San Francisco

Best Price Found

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Direct flights

Airports in San Francisco

Best airlines flying from Illinois to San Francisco

Compare and see reviews for airlines that fly from Illinois to San Francisco with momondo

Traveling to a place near San Francisco?

Why use momondo?

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize 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.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in San Francisco. Availability may vary depending on flight origin and airline.

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