Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Illinois from $54

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 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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.
11:02 am - 5:00 amSFO-ORD
15h 58m1 stop
10:56 am - 11:15 pmORD-SFO
14h 19m1 stop
$126Frontier
Find Deal
Mon, Feb 24 - Tue, Feb 25
6:55 am - 12:17 amSFO-MDW
15h 22m1 stop
8:15 am - 11:59 pmMDW-SFO
17h 44m1 stop
$127Frontier
Find Deal
Tue, Feb 4 - Tue, Feb 11
10:46 am - 4:58 pmSFO-ORD
4h 12mnonstop
7:00 pm - 10:10 pmORD-SFO
5h 10mnonstop
$197Alaska Airlines
Find Deal
Wed, Feb 26 - Wed, Mar 5
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
1:00 pm - 3:50 pmORD-SFO
4h 50mnonstop
$199American Airlines
Find Deal
Sat, Jan 18 - Sat, Jan 25
8:20 am - 6:00 pmSFO-ORD
7h 40m1 stop
7:00 pm - 10:10 pmORD-SFO
5h 10mnonstop
$206Alaska Airlines
Find Deal
Wed, Feb 19 - Sat, Feb 22
6:15 am - 12:42 pmSFO-ORD
4h 27mnonstop
12:45 pm - 3:38 pmORD-SFO
4h 53mnonstop
$207United Airlines
Find Deal
Wed, Jan 15 - Fri, Jan 17
6:15 am - 12:25 pmSFO-MDW
4h 10mnonstop
9:30 am - 12:25 pmMDW-SFO
4h 55mnonstop
$218Southwest
Find Deal
Thu, Feb 20 - Thu, Feb 27
1:40 pm - 7:59 pmSFO-ORD
4h 19mnonstop
5:00 am - 9:40 amORD-SFO
6h 40m1 stop
$227United Airlines
Find Deal
Fri, Feb 7 - Fri, Mar 7
12:15 am - 6:33 amSFO-ORD
4h 18mnonstop
8:21 pm - 11:15 pmORD-SFO
4h 54mnonstop
$237American Airlines
Find Deal
Wed, Mar 26 - Tue, Apr 1
10:54 am - 7:31 pmSFO-STL
6h 37m1 stop
$54Frontier
Find Deal
Thu, Feb 6
10:00 am - 4:27 pmSFO-ORD
4h 27mnonstop
$55Alaska Airlines
Find Deal
Mon, Feb 10
7:15 am - 1:20 pmSFO-MDW
4h 05mnonstop
$99Southwest
Find Deal
Sat, Feb 1
11:27 pm - 5:46 amSFO-ORD
4h 19mnonstop
$100American Airlines
Find Deal
Tue, Dec 31
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
$101American Airlines
Find Deal
Sat, Jan 25
2:40 pm - 11:59 pmSFO-ORD
7h 19m1 stop
$108United Airlines
Find Deal
Sat, Jan 18
6:10 am - 12:20 pmSFO-MDW
4h 10mnonstop
$109Southwest
Find Deal
Sun, Feb 2
12:10 pm - 6:09 pmSFO-STL
3h 59mnonstop
$114United Airlines
Find Deal
Wed, Jan 22
12:40 am - 10:36 amSFO-MDW
7h 56m1 stop
$128Delta
Find Deal
Fri, Jan 24
12:35 pm - 9:49 pmSFO-STL
7h 14m1 stop
$128Delta
Find Deal
Tue, Jan 21
3:03 pm - 7:34 pmSFO-ORD
26h 31m1 stop
1:07 pm - 12:21 amORD-SFO
13h 14m1 stop
$317Frontier
Find Deal
Wed, Dec 25 - Sun, Jan 5
3:03 pm - 11:46 pmSFO-ORD
6h 43m1 stop
1:07 pm - 12:21 amORD-SFO
13h 14m1 stop
$347Frontier
Find Deal
Fri, Dec 27 - Sun, Jan 5
11:27 pm - 5:46 amSFO-ORD
4h 19mnonstop
12:39 pm - 3:28 pmORD-SFO
4h 49mnonstop
$453American Airlines
Find Deal
Wed, Dec 25 - Wed, Jan 8
11:34 am - 5:59 pmSFO-ORD
4h 25mnonstop
6:55 pm - 8:54 amORD-SFO
15h 59m1 stop
$455Alaska Airlines
Find Deal
Wed, Dec 25 - Wed, Jan 8
12:17 am - 11:01 amSFO-ORD
8h 44m1 stop
8:30 am - 11:24 amORD-SFO
4h 54mnonstop
$463American Airlines
Find Deal
Tue, Dec 24 - Wed, Jan 8
11:34 am - 5:59 pmSFO-ORD
4h 25mnonstop
6:55 pm - 9:54 pmORD-SFO
4h 59mnonstop
$478Alaska Airlines
Find Deal
Wed, Dec 25 - Mon, Jan 6
12:59 am - 10:47 amSFO-STL
7h 48m1 stop
8:50 am - 11:37 amSTL-SFO
4h 47mnonstop
$483United Airlines
Find Deal
Sat, Dec 28 - Wed, Jan 1
6:35 pm - 12:28 amSFO-STL
3h 53mnonstop
5:59 pm - 11:59 pmSTL-SFO
8h 00m1 stop
$533United Airlines
Find Deal
Wed, Dec 25 - Fri, Dec 27
10:15 am - 11:05 pmSFO-ORD
10h 50m2 stops
7:00 am - 11:55 amORD-SFO
6h 55m1 stop
$539Southwest
Find Deal
Sat, Dec 28 - Mon, Jan 6
6:15 am - 5:15 pmSFO-STL
9h 00m2 stops
5:35 pm - 12:35 amSTL-SFO
9h 00m1 stop
$576Southwest
Find Deal
Wed, Dec 25 - Fri, Dec 27
10:46 am - 4:58 pmSFO-ORD
4h 12mnonstop
7:00 pm - 10:10 pmORD-SFO
5h 10mnonstop
$197Alaska Airlines
Find Deal
Wed, Feb 26 - Wed, Mar 5
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
1:00 pm - 3:50 pmORD-SFO
4h 50mnonstop
$199American Airlines
Find Deal
Sat, Jan 18 - Sat, Jan 25
10:35 pm - 4:53 amSFO-ORD
4h 18mnonstop
6:30 am - 9:30 amORD-SFO
5h 00mnonstop
$207United Airlines
Find Deal
Wed, Feb 19 - Sun, Feb 23
10:00 am - 4:27 pmSFO-ORD
4h 27mnonstop
7:00 pm - 10:10 pmORD-SFO
5h 10mnonstop
$212Alaska Airlines
Find Deal
Thu, Feb 6 - Thu, Feb 13
10:00 am - 4:27 pmSFO-ORD
4h 27mnonstop
6:55 pm - 9:54 pmORD-SFO
4h 59mnonstop
$217Alaska Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
6:15 am - 12:25 pmSFO-MDW
4h 10mnonstop
9:30 am - 12:25 pmMDW-SFO
4h 55mnonstop
$218Southwest
Find Deal
Thu, Feb 20 - Thu, Feb 27
5:20 am - 11:36 amSFO-ORD
4h 16mnonstop
12:25 pm - 3:19 pmORD-SFO
4h 54mnonstop
$219American Airlines
Find Deal
Thu, Feb 6 - Thu, Feb 13
5:06 am - 11:27 amSFO-ORD
4h 21mnonstop
1:20 pm - 4:05 pmORD-SFO
4h 45mnonstop
$233American Airlines
Find Deal
Sat, May 3 - Wed, May 7
11:20 pm - 5:44 amSFO-ORD
4h 24mnonstop
6:30 am - 9:20 amORD-SFO
4h 50mnonstop
$260United Airlines
Find Deal
Mon, Apr 7 - Sat, Apr 12
7:15 am - 1:20 pmSFO-MDW
4h 05mnonstop
9:05 am - 12:00 pmMDW-SFO
4h 55mnonstop
$266Southwest
Find Deal
Sat, Jan 25 - Sat, Feb 8

American Airlines flights from San Francisco to Illinois

Our best American Airlines deals on San Francisco to Illinois flight tickets
American Airlines
Jan 18
SFO5:20 amSan Francisco
4h 16m
ORD11:36 amChicago O'Hare Intl
Jan 25
ORD1:00 pmChicago O'Hare Intl
4h 50m
SFO3:50 pmSan Francisco
American Airlines
Mar 26
SFO12:15 amSan Francisco
4h 18m
ORD6:33 amChicago O'Hare Intl
Apr 1
ORD8:21 pmChicago O'Hare Intl
4h 54m
SFO11:15 pmSan Francisco
American Airlines
Jan 7
SFO5:20 amSan Francisco
4h 16m
ORD11:36 amChicago O'Hare Intl
Jan 14
ORD12:39 pmChicago O'Hare Intl
4h 49m
SFO3:28 pmSan Francisco

Alaska Airlines flights from San Francisco to Illinois

Our best Alaska Airlines deals on San Francisco to Illinois flight tickets
Alaska Airlines
Feb 26
SFO10:46 amSan Francisco
4h 12m
ORD4:58 pmChicago O'Hare Intl
Mar 5
ORD7:00 pmChicago O'Hare Intl
5h 10m
SFO10:10 pmSan Francisco
Alaska Airlines
Feb 19
SFO8:20 amSan Francisco
7h 40m
1 stop
ORD6:00 pmChicago O'Hare Intl
Feb 22
ORD7:00 pmChicago O'Hare Intl
5h 10m
SFO10:10 pmSan Francisco
Alaska Airlines
Jan 28
SFO8:20 amSan Francisco
7h 39m
1 stop
ORD5:59 pmChicago O'Hare Intl
Feb 10
ORD6:55 pmChicago O'Hare Intl
4h 59m
SFO9:54 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 month to fly to Illinois?

The cheapest month to fly to Illinois from San Francisco is in April. Flight prices, which tend to average around $296, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $308.

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 $306. Flights from San Francisco to Illinois on a Sunday will generally be more expensive and average around $391. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from San Francisco to Illinois during this time can be as low as $280. Flights at noon are often more expensive with an average ticket price of $428.

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

How far in advance should I book a flight to Illinois?

The best time to book a flight to Illinois from San Francisco is 56 days out, which is when prices tend to be around $380. In the past 72 hours, momondo users found flights from San Francisco to Illinois for as low as $277.

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 1% 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

$54

Fastest flight time

3h 46m

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 $54. The best round-trip flight deal from San Francisco to Illinois found on momondo in the last 72 hours is $126.
The fastest flight from San Francisco to Illinois takes 3h 46m
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 $82Free CancellationRating
6.1
3,469 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $112Free CancellationRating
6.3
8,113 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $161Free CancellationRating
8.0
9,549 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $185Free CancellationRating
7.4
9,020 reviews
Search United Airlines flights
American AirlinesPriceFrom $198Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $219Free CancellationRating
8.1
4,780 reviews
Search Southwest flights
DeltaPriceFrom $235Free CancellationRating
8.0
8,588 reviews
Search Delta 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Sat 12/28
Sat 1/4
Email me momondo's favorite deals

Find better results for your trip to Illinois

Popular cities in Illinois

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