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Cheap flights from San Francisco to Illinois from $53

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 Illinois departing on 1/23. 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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Find the cheapest flights from San Francisco to Illinois

Cheap round-trip flights

These are some of the best round-trip flight deals from San Francisco to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from San Francisco to Illinois.

Cheap last minute flights

Planning a quick getaway from San Francisco to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from San Francisco to Illinois

Find recent round-trip train or bus tickets from San Francisco to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.
9:10 pm - 8:13 amSFO-STL
9h 03m1 stop
6:46 pm - 12:11 amSTL-SFO
7h 25m1 stop
$108Frontier
Find Deal
Thu, Dec 5 - Mon, Dec 9
9:10 pm - 12:35 amSFO-ORD
25h 25m1 stop
8:25 pm - 2:18 pmORD-SFO
19h 53m1 stop
$116Frontier
Find Deal
Thu, Dec 5 - Mon, Dec 9
6:55 am - 9:06 amSFO-STL
24h 11m1 stop
7:09 pm - 12:09 amSTL-SFO
7h 00m1 stop
$118Frontier
Find Deal
Tue, Jan 14 - Mon, Jan 20
1:25 pm - 7:40 pmSFO-ORD
4h 15mnonstop
6:50 am - 9:38 amORD-SFO
4h 48mnonstop
$197United Airlines
Find Deal
Wed, Dec 11 - Sat, Dec 14
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
12:39 pm - 3:28 pmORD-SFO
4h 49mnonstop
$198American Airlines
Find Deal
Tue, Jan 21 - Wed, Jan 29
12:00 pm - 5:56 pmSFO-STL
3h 56mnonstop
7:00 am - 9:36 amSTL-SFO
4h 36mnonstop
$207United Airlines
Find Deal
Wed, Dec 4 - Wed, Dec 11
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
12:39 pm - 3:28 pmORD-SFO
4h 49mnonstop
$218American Airlines
Find Deal
Tue, Jan 21 - Mon, Feb 3
12:40 am - 9:39 amSFO-MDW
6h 59m1 stop
6:59 pm - 11:54 pmMDW-SFO
6h 55m1 stop
$256Delta
Find Deal
Thu, Jan 23 - Sun, Jan 26
10:45 pm - 9:16 amSFO-ORD
8h 31m1 stop
7:20 am - 12:44 pmORD-SFO
7h 24m1 stop
$256Delta
Find Deal
Fri, Jan 24 - Tue, Jan 28
6:20 pm - 6:06 pmSFO-ORD
21h 46m1 stop
9:13 pm - 5:07 pmORD-SFO
21h 54m1 stop
$335Sun Country Air
Find Deal
Thu, Apr 10 - Sun, Apr 13
10:54 am - 7:31 pmSFO-STL
6h 37m1 stop
$53Frontier
Find Deal
Thu, Jan 23
9:59 pm - 11:10 amSFO-STL
11h 11m1 stop
$60Frontier
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Sat, Jan 4
6:55 am - 12:13 amSFO-MDW
15h 18m1 stop
$61Frontier
Find Deal
Tue, Jan 14
12:59 am - 7:26 amSFO-ORD
4h 27mnonstop
$99United Airlines
Find Deal
Tue, Dec 31
1:15 pm - 7:30 pmSFO-ORD
4h 15mnonstop
$100United Airlines
Find Deal
Thu, Nov 28
1:22 pm - 10:10 pmSFO-STL
6h 48m1 stop
$113American Airlines
Find Deal
Wed, Nov 27
12:17 am - 9:57 amSFO-STL
7h 40m1 stop
$116American Airlines
Find Deal
Wed, Nov 27
12:25 am - 8:50 amSFO-MDW
6h 25m1 stop
$128Delta
Find Deal
Wed, Dec 11
12:27 pm - 9:33 pmSFO-STL
7h 06m1 stop
$128Delta
Find Deal
Sat, Jan 18
11:20 pm - 12:15 pmSFO-ORD
10h 55m1 stop
$251JetBlue
Find Deal
Sun, Mar 16
9:09 pm - 12:15 pmSFO-ORD
13h 06m1 stop
6:36 pm - 7:14 amORD-SFO
14h 38m1 stop
$226Frontier
Find Deal
Tue, Nov 26 - Thu, Dec 12
8:51 pm - 10:38 amSFO-ORD
11h 47m1 stop
6:36 pm - 7:14 amORD-SFO
14h 38m1 stop
$231Frontier
Find Deal
Tue, Nov 26 - Thu, Dec 5
8:30 am - 2:41 pmSFO-ORD
4h 11mnonstop
2:30 pm - 5:19 pmORD-SFO
4h 49mnonstop
$404United Airlines
Find Deal
Sun, Nov 24 - Thu, Nov 28
12:40 am - 8:51 amSFO-MDW
6h 11m1 stop
9:31 am - 2:54 pmMDW-SFO
7h 23m1 stop
$452Delta
Find Deal
Sat, Nov 23 - Thu, Nov 28
5:15 am - 11:29 amSFO-ORD
4h 14mnonstop
7:10 am - 11:25 amORD-SFO
6h 15m1 stop
$458United Airlines
Find Deal
Sat, Nov 23 - Thu, Nov 28
12:40 am - 8:51 amSFO-MDW
6h 11m1 stop
6:00 am - 12:40 pmMDW-SFO
8h 40m1 stop
$458Delta
Find Deal
Mon, Nov 25 - Thu, Dec 5
12:00 pm - 9:08 pmSFO-ORD
7h 08m1 stop
9:05 am - 2:53 pmORD-SFO
7h 48m1 stop
$527American Airlines
Find Deal
Mon, Nov 25 - Sat, Dec 7
11:48 pm - 10:58 amSFO-CMI
9h 10m1 stop
6:06 am - 11:18 amCMI-SFO
7h 12m1 stop
$542American Airlines
Find Deal
Fri, Nov 22 - Tue, Nov 26
11:59 pm - 6:15 pmSFO-ORD
16h 16m1 stop
9:20 am - 5:18 pmORD-SFO
9h 58m1 stop
$615Sun Country Air
Find Deal
Sun, Nov 24 - Thu, Nov 28
11:59 pm - 6:15 pmSFO-ORD
16h 16m1 stop
9:20 am - 3:31 pmORD-SFO
8h 11m1 stop
$665Sun Country Air
Find Deal
Sun, Nov 24 - Mon, Dec 2
2:45 pm - 9:05 pmSFO-ORD
4h 20mnonstop
12:45 pm - 3:35 pmORD-SFO
4h 50mnonstop
$197United Airlines
Find Deal
Sat, Dec 14 - Tue, Dec 17
6:10 am - 12:20 pmSFO-MDW
4h 10mnonstop
11:05 am - 1:55 pmMDW-SFO
4h 50mnonstop
$198Southwest
Find Deal
Sat, Feb 22 - Sat, Mar 1
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
12:39 pm - 3:28 pmORD-SFO
4h 49mnonstop
$198American Airlines
Find Deal
Tue, Jan 21 - Wed, Jan 29
10:46 am - 4:58 pmSFO-ORD
4h 12mnonstop
7:00 pm - 10:10 pmORD-SFO
5h 10mnonstop
$207Alaska Airlines
Find Deal
Tue, Mar 4 - Tue, Mar 11
12:00 pm - 5:56 pmSFO-STL
3h 56mnonstop
7:00 am - 9:36 amSTL-SFO
4h 36mnonstop
$207United Airlines
Find Deal
Wed, Dec 4 - Wed, Dec 11
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
1:00 pm - 3:50 pmORD-SFO
4h 50mnonstop
$208American Airlines
Find Deal
Wed, Jan 22 - Sat, Jan 25
12:10 pm - 6:09 pmSFO-STL
3h 59mnonstop
7:00 am - 9:45 amSTL-SFO
4h 45mnonstop
$217United Airlines
Find Deal
Wed, Jan 8 - Wed, Jan 15
6:15 am - 12:42 pmSFO-ORD
4h 27mnonstop
6:30 am - 9:24 amORD-SFO
4h 54mnonstop
$217United Airlines
Find Deal
Thu, Jan 23 - Sat, Jan 25
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
12:39 pm - 3:28 pmORD-SFO
4h 49mnonstop
$218American Airlines
Find Deal
Tue, Jan 21 - Mon, Feb 3
10:00 am - 4:27 pmSFO-ORD
4h 27mnonstop
6:55 pm - 9:54 pmORD-SFO
4h 59mnonstop
$231Alaska Airlines
Find Deal
Fri, Jan 24 - Fri, Jan 24

Frontier flights from San Francisco to Illinois

Our best Frontier deals on San Francisco to Illinois flight tickets
Frontier
Dec 5
SFO9:10 pmSan Francisco
9h 03m
1 stop
STL8:13 amLambert-St Louis
Dec 9
STL6:46 pmLambert-St Louis
7h 25m
1 stop
SFO12:11 amSan Francisco
Frontier
Dec 5
SFO9:10 pmSan Francisco
25h 25m
1 stop
ORD12:35 amChicago O'Hare Intl
Dec 9
ORD8:25 pmChicago O'Hare Intl
19h 53m
1 stop
SFO2:18 pmSan Francisco
Frontier
Jan 14
SFO6:55 amSan Francisco
24h 11m
1 stop
STL9:06 amLambert-St Louis
Jan 20
STL7:09 pmLambert-St Louis
7h 00m
1 stop
SFO12:09 amSan Francisco

United Airlines flights from San Francisco to Illinois

Our best United Airlines deals on San Francisco to Illinois flight tickets
United Airlines
Dec 11
SFO1:25 pmSan Francisco
4h 15m
ORD7:40 pmChicago O'Hare Intl
Dec 14
ORD6:50 amChicago O'Hare Intl
4h 48m
SFO9:38 amSan Francisco
United Airlines
Dec 14
SFO6:15 amSan Francisco
4h 22m
ORD12:37 pmChicago O'Hare Intl
Dec 17
ORD2:30 pmChicago O'Hare Intl
6h 45m
1 stop
SFO7:15 pmSan Francisco
United Airlines
Jan 25
SFO4:00 pmSan Francisco
5h 59m
1 stop
ORD11:59 pmChicago O'Hare Intl
Feb 1
ORD2:39 pmChicago O'Hare Intl
6h 32m
1 stop
SFO7:11 pmSan Francisco

See travel insights to Illinois from

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

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 day to depart on your flight to Illinois?

The cheapest day to depart from San Francisco to Illinois is on a Wednesday when prices can be found for as low as $304. Flights from San Francisco to Illinois on a Sunday will generally be more expensive and average around $378. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest San Francisco to Illinois flight route?

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

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

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

You could potentially save up to 46% on your flight if you consider stops on a San Francisco to Illinois flight.

Cheap San Francisco to Illinois flight deals and tips

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

Best Price Found

$53

Fastest flight time

3h 40m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from San Francisco in the past 72 hours is $53. The best round-trip flight deal from San Francisco to Illinois found on momondo in the last 72 hours is $108.
The fastest flight from San Francisco to Illinois takes 3h 40m
Direct flights go from San Francisco to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

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

    Prices for flights from San Francisco Airport to Illinois were last updated today.

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

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

    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 Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois 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 license 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 Illinois?


Best airlines flying from San Francisco to Illinois

Compare and see reviews for airlines that fly from San Francisco to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $83Free CancellationRating
6.1
3,536 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $112Free CancellationRating
6.3
8,169 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $115Free CancellationRating
8.0
9,464 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $185Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
American AirlinesPriceFrom $193Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $204Free CancellationRating
8.0
8,755 reviews
Search Delta flights
SouthwestPriceFrom $210Free CancellationRating
8.1
5,005 reviews
Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to Illinois for you.

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

Yes. momondo enables you to select and highlight flights to Illinois from San Francisco with this policy.

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

momondo helps you find the best flight between San Francisco and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from San Francisco and alert you when they change.


An easier way to manage your Illinois 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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Popular flights according to clicks in the last 7 days on momondo