Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from San Jose to Illinois from $55

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 Jose to Illinois departing on 9/6. 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

Discover deals from 900+ travel sites with momondo.

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.
Search flight deals

Find the cheapest flights from San Jose to Illinois

Cheap round-trip flights

Spirit Airlines Logo
4:41 pm - 4:50 amSJC-ORD
10h 09m1 stop
Spirit Airlines Logo
11:15 am - 8:00 pmORD-SJC
10h 45m1 stop
$114Spirit Airlines
Find Deal
Wed, Sep 3 - Wed, Sep 10
Spirit Airlines Logo
11:40 am - 9:32 pmSJC-ORD
7h 52m1 stop
Spirit Airlines Logo
12:46 pm - 8:00 pmORD-SJC
9h 14m1 stop
$117Spirit Airlines
Find Deal
Sat, Sep 6 - Sat, Sep 13
United Airlines Logo
6:30 am - 12:55 pmSJC-ORD
4h 25mnonstop
United Airlines Logo
7:55 pm - 10:40 pmORD-SJC
4h 45mnonstop
$173United Airlines
Find Deal
Tue, Sep 2 - Wed, Sep 10
Southwest Logo
6:35 am - 12:45 pmSJC-MDW
4h 10mnonstop
Southwest Logo
8:25 am - 10:55 amMDW-SJC
4h 30mnonstop
$173Southwest
Find Deal
Tue, Sep 9 - Wed, Sep 17
Southwest Logo
6:35 am - 12:45 pmSJC-MDW
4h 10mnonstop
Southwest Logo
6:00 am - 10:00 amMDW-SJC
6h 00m1 stop
$183Southwest
Find Deal
Tue, Sep 9 - Wed, Sep 17
American Airlines Logo
6:00 am - 6:00 pmSJC-ORD
10h 00m1 stop
American Airlines Logo
12:10 pm - 6:31 pmORD-SJC
8h 21m1 stop
$193American Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
United Airlines Logo
6:30 am - 12:55 pmSJC-ORD
4h 25mnonstop
United Airlines Logo
5:00 am - 9:51 amORD-SJC
6h 51m1 stop
$200United Airlines
Find Deal
Wed, Sep 10 - Sun, Sep 14
Frontier Logo
6:27 pm - 1:46 pmSJC-STL
17h 19m1 stop
Frontier Logo
7:54 pm - 11:26 amSTL-SJC
17h 32m1 stop
$261Frontier
Find Deal
Sun, Aug 24 - Wed, Aug 27
Frontier Logo
12:35 pm - 9:07 amSJC-STL
18h 32m1 stop
Frontier Logo
7:52 pm - 11:32 amSTL-SJC
17h 40m1 stop
$262Frontier
Find Deal
Mon, Oct 13 - Sat, Oct 25
American Airlines Logo
7:10 pm - 9:24 amSJC-PIA
12h 14m2 stops
American Airlines Logo
11:24 am - 4:41 pmPIA-SJC
7h 17m1 stop
$294American Airlines
Find Deal
Sun, Sep 21 - Sat, Sep 27

Spirit Airlines flights from San Jose to Illinois

Our best Spirit Airlines deals on San Jose to Illinois flight tickets
Spirit Airlines
Sep 3
SJC4:41 pmSan Jose
10h 09m
1 stop
ORD4:50 amChicago O'Hare Intl
Sep 10
ORD11:15 amChicago O'Hare Intl
10h 45m
1 stop
SJC8:00 pmSan Jose
$114
Find similar
Spirit Airlines
Sep 6
SJC11:40 amSan Jose
7h 52m
1 stop
ORD9:32 pmChicago O'Hare Intl
Sep 13
ORD12:46 pmChicago O'Hare Intl
9h 14m
1 stop
SJC8:00 pmSan Jose
$117
Find similar
Spirit Airlines
Sep 10
SJC11:40 amSan Jose
7h 52m
1 stop
ORD9:32 pmChicago O'Hare Intl
Sep 16
ORD11:15 amChicago O'Hare Intl
10h 45m
1 stop
SJC8:00 pmSan Jose
$124
Find similar

American Airlines flights from San Jose to Illinois

Our best American Airlines deals on San Jose to Illinois flight tickets
American Airlines
Nov 1
SJC6:00 amSan Jose
10h 00m
1 stop
ORD6:00 pmChicago O'Hare Intl
Nov 4
ORD12:10 pmChicago O'Hare Intl
8h 21m
1 stop
SJC6:31 pmSan Jose
$193
Find similar
American Airlines
Sep 21
SJC7:10 pmSan Jose
12h 14m
2 stops
PIA9:24 amGreater Peoria
Sep 27
PIA11:24 amGreater Peoria
7h 17m
1 stop
SJC4:41 pmSan Jose
$294
Find similar
American Airlines
Sep 21
SJC7:10 pmSan Jose
12h 14m
2 stops
PIA9:24 amGreater Peoria
Sep 27
PIA8:19 amGreater Peoria
12h 16m
2 stops
SJC6:35 pmSan Jose
$299
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Jose to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 13, 2025.
Use the filters below to find and compare flights from San Jose to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoseChicago

SJC - ORD

SJCORD

San Jose

Wed 9/3

4:41 pm-4:50 am

1 stop10h 09m

Chicago O'Hare Intl

Wed 9/10

11:15 am-8:00 pm

1 stop10h 45m

$114

San JoseChicago

SJC - ORD

SJCORD

San Jose

Sat 9/6

11:40 am-9:32 pm

1 stop7h 52m

Chicago O'Hare Intl

Sat 9/13

12:46 pm-8:00 pm

1 stop9h 14m

$117

San JoseChicago

SJC - ORD

SJCORD

San Jose

Tue 9/2

6:30 am-12:55 pm

Nonstop4h 25m

Chicago O'Hare Intl

Wed 9/10

7:55 pm-10:40 pm

Nonstop4h 45m

$173

San JoseChicago

SJC - MDW

SJCMDW

San Jose

Tue 9/9

6:35 am-12:45 pm

Nonstop4h 10m

Chicago Midway

Wed 9/17

8:25 am-10:55 am

Nonstop4h 30m

$173

San JoseChicago

SJC - MDW

SJCMDW

San Jose

Tue 9/9

6:35 am-12:45 pm

Nonstop4h 10m

Chicago Midway

Wed 9/17

6:00 am-10:00 am

1 stop6h 00m

$183

San JoseChicago

SJC - ORD

SJCORD

San Jose

Sat 11/1

6:00 am-6:00 pm

1 stop10h 00m

Chicago O'Hare Intl

Tue 11/4

12:10 pm-6:31 pm

1 stop8h 21m

$193

San JoseChicago

SJC - ORD

SJCORD

San Jose

Wed 9/10

6:30 am-12:55 pm

Nonstop4h 25m

Chicago O'Hare Intl

Sun 9/14

5:00 am-9:51 am

1 stop6h 51m

$200

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sun 8/24

6:27 pm-1:46 pm

1 stop17h 19m

Lambert-St Louis

Wed 8/27

7:54 pm-11:26 am

1 stop17h 32m

$261

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 10/13

12:35 pm-9:07 am

1 stop18h 32m

Lambert-St Louis

Sat 10/25

7:52 pm-11:32 am

1 stop17h 40m

$262

San JosePeoria

SJC - PIA

SJCPIA

San Jose

Sun 9/21

7:10 pm-9:24 am

2 stops12h 14m

Greater Peoria

Sat 9/27

11:24 am-4:41 pm

1 stop7h 17m

$294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Illinois from

How to get the cheapest flight ticket from San Jose 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 Jose is in January. Flight prices, which tend to average around $305, 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 January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $369.

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

The cheapest day to depart from San Jose to Illinois is on a Tuesday when prices can be found for as low as $446. Flights from San Jose to Illinois on a Sunday will generally be more expensive and average around $572. 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 Jose to Illinois during this time can be as low as $433. Flights in the evening are often more expensive with an average ticket price of $644.

What is the cheapest San Jose to Illinois flight route?

Fly from San Jose to Chicago Midway for the best San Jose - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from San Jose when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $463 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from San Jose for as low as $262 on momondo.

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

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

You could potentially save up to 18% on your flight if you consider stops on a San Jose to Illinois flight.

Cheap San Jose to Illinois flight deals and tips

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

Best Price Found

$55

Fastest flight time

4h 05m

Direct flights

Every day

Airports in Illinois

7 airports
The best one-way flight to Illinois from San Jose in the past 72 hours is $55. The best round-trip flight deal from San Jose to Illinois found on momondo in the last 72 hours is $114.
The fastest flight from San Jose to Illinois takes 4h 05m
Direct flights go from San Jose to Illinois every day.
There are 7 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Greater Peoria (PIA), Lambert-St Louis (STL), Moline Quad-City (MLI), Champaign University-Willard (CMI), Bloomington-Normal (BMI)
Search flight deals

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

    Prices for flights from San Jose Airport to Illinois are updated daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Jose Airport to Illinois.

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

    The travel and health documents required for your trip to Illinois 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 Illinois. 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 Jose to Illinois?

Best airlines flying from San Jose to Illinois

Compare and see reviews for airlines that fly from San Jose to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $98Free CancellationRating
5.8
3,221 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $108Free CancellationRating
6.3
8,048 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $170Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $200Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $212Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights
DeltaPriceFrom $236Free CancellationRating
8.0
7,979 reviews
Search Delta flights
SouthwestPriceFrom $358Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Jose to Illinois. momondo saves you time and could save you money on your trip.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Jose to Illinois.

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

Price alerts on flights to Illinois from San Jose are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 8/18
Mon 8/25
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $55
Flights to Los Angelesfrom $47
Flights to Miamifrom $61
Flights to Chicagofrom $47
Flights to Orlandofrom $61
Flights to Las Vegasfrom $17
Flights to San Franciscofrom $59
Flights to Washington, D.C.from $58
Flights to Bostonfrom $76
Flights to Atlantafrom $48
Flights to Dallasfrom $57
Flights to Seattlefrom $84