How many flights depart from San Jose, California to Illinois on average per day?

As of May 2026, 2 flights take off from San Jose, California and land in Illinois each day. The most common flight departure time for this route is 10:00PM, with 50% of daily flights taking off at noon.

What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from San Jose, California according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 9 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from San Jose, California to Illinois on average per week?

As of May 2026, 17 flights take off from San Jose, California and land in Illinois each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

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

Frontier, Delta, and Alaska Airlines are the most popular carriers operating from San Jose to Illinois

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?

The number of operators available for flights from San Jose Airport to Illinois is 7 as of May 2026.

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.

$129 Cheap Flights from San Jose, California to Illinois in 2026

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Find the cheapest flights from San Jose, California to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:12 pm - 6:06 pm

SJC

STL

25h 54m

1 stop

9:06 pm - 1:17 pm

STL

SJC

18h 11m

1 stop

$238Frontier

Mon, Jun 1 - Thu, Jun 4

2:12 pm - 8:11 pm

SJC

STL

27h 59m

1 stop

2:52 pm - 1:17 pm

STL

SJC

24h 25m

1 stop

$259Frontier

Sun, Jun 7 - Sun, Aug 2

2:12 pm - 8:11 pm

SJC

STL

27h 59m

1 stop

9:06 pm - 1:17 pm

STL

SJC

18h 11m

1 stop

$260Frontier

Thu, Jun 4 - Sun, Jun 7

1:45 pm - 10:00 pm

SJC

MDW

6h 15m

1 stop

5:30 pm - 11:00 pm

MDW

SJC

7h 30m

2 stops

$282Southwest

Tue, Jun 2 - Wed, Jun 3

11:15 am - 10:55 pm

SJC

ORD

9h 40m

2 stops

7:45 am - 1:45 pm

ORD

SJC

8h 00m

2 stops

$287Southwest

Tue, Jun 2 - Wed, Jun 3

2:00 pm - 11:55 pm

SJC

ORD

7h 55m

1 stop

7:59 pm - 9:26 am

ORD

SJC

15h 27m

1 stop

$295Alaska Airlines

Sat, Jun 6 - Wed, Jun 10

11:48 am - 11:30 pm

SJC

MLI

9h 42m

1 stop

4:42 pm - 11:13 pm

MLI

SJC

8h 31m

1 stop

$389American Airlines

Wed, May 27 - Sat, May 30

6:00 am - 4:14 pm

SJC

MLI

8h 14m

1 stop

7:20 am - 1:42 pm

MLI

SJC

8h 22m

1 stop

$419American Airlines

Wed, May 27 - Sat, May 30

2:10 pm - 10:43 pm

SJC

PIA

6h 33m

1 stop

6:05 am - 11:45 am

PIA

SJC

7h 40m

1 stop

$537United Airlines

Thu, Aug 27 - Sat, Aug 29

6:30 am - 4:57 pm

SJC

PIA

8h 27m

1 stop

5:33 pm - 10:35 pm

PIA

SJC

7h 02m

1 stop

$564United Airlines

Sat, May 23 - Sat, May 30

Delta flights from San Jose, California to Illinois

Our best Delta deals on San Jose, California to Illinois flight tickets

Delta

Jun 16

SJC7:00 amSan Jose

12h 57m

2 stops

ORD9:57 pmChicago O'Hare Intl

Jun 23

ORD7:45 amChicago O'Hare Intl

6h 53m

1 stop

SJC12:38 pmSan Jose

$282

Delta

Jun 16

SJC9:45 amSan Jose

7h 13m

1 stop

ORD6:58 pmChicago O'Hare Intl

Jun 24

ORD3:55 pmChicago O'Hare Intl

6h 44m

1 stop

SJC8:39 pmSan Jose

$287

Delta

Jun 16

SJC7:00 amSan Jose

12h 57m

2 stops

ORD9:57 pmChicago O'Hare Intl

Jun 23

ORD2:09 pmChicago O'Hare Intl

10h 07m

2 stops

SJC10:16 pmSan Jose

$288

Alaska Airlines flights from San Jose, California to Illinois

Our best Alaska Airlines deals on San Jose, California to Illinois flight tickets

Alaska Airlines

Jun 6

SJC2:00 pmSan Jose

7h 55m

1 stop

ORD11:55 pmChicago O'Hare Intl

Jun 10

ORD7:59 pmChicago O'Hare Intl

15h 27m

1 stop

SJC9:26 amSan Jose

$295

Alaska Airlines

Jun 3

SJC10:22 amSan Jose

6h 28m

1 stop

ORD6:50 pmChicago O'Hare Intl

Jun 9

ORD2:10 pmChicago O'Hare Intl

21h 16m

1 stop

SJC9:26 amSan Jose

$300

Alaska Airlines

Jul 8

SJC8:12 pmSan Jose

15h 09m

1 stop

ORD1:21 pmChicago O'Hare Intl

Jul 22

ORD7:59 pmChicago O'Hare Intl

15h 27m

1 stop

SJC9:26 amSan Jose

$302

momondo Fare Finder

Use the filters below to find and compare flights from San Jose, California to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 6/1

2:12 pm-6:06 pm

1 stop25h 54m

Lambert-St Louis

Thu 6/4

9:06 pm-1:17 pm

1 stop18h 11m

$238

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sun 6/7

2:12 pm-8:11 pm

1 stop27h 59m

Lambert-St Louis

Sun 8/2

2:52 pm-1:17 pm

1 stop24h 25m

$259

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 6/4

2:12 pm-8:11 pm

1 stop27h 59m

Lambert-St Louis

Sun 6/7

9:06 pm-1:17 pm

1 stop18h 11m

$260

Quickest round-trip

San JoseChicago

SJC - MDW

SJCMDW

San Jose

Tue 6/2

1:45 pm-10:00 pm

1 stop6h 15m

Chicago Midway

Wed 6/3

5:30 pm-11:00 pm

2 stops7h 30m

$282

San JoseChicago

SJC - ORD

SJCORD

San Jose

Tue 6/2

11:15 am-10:55 pm

2 stops9h 40m

Chicago O'Hare Intl

Wed 6/3

7:45 am-1:45 pm

2 stops8h 00m

$287

San JoseChicago

SJC - ORD

SJCORD

San Jose

Sat 6/6

2:00 pm-11:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Wed 6/10

7:59 pm-9:26 am

1 stop15h 27m

$295

San JoseMoline

SJC - MLI

SJCMLI

San Jose

Wed 5/27

11:48 am-11:30 pm

1 stop9h 42m

Moline Quad-City

Sat 5/30

4:42 pm-11:13 pm

1 stop8h 31m

$389

San JoseMoline

SJC - MLI

SJCMLI

San Jose

Wed 5/27

6:00 am-4:14 pm

1 stop8h 14m

Moline Quad-City

Sat 5/30

7:20 am-1:42 pm

1 stop8h 22m

$419

San JosePeoria

SJC - PIA

SJCPIA

San Jose

Thu 8/27

2:10 pm-10:43 pm

1 stop6h 33m

Greater Peoria

Sat 8/29

6:05 am-11:45 am

1 stop7h 40m

$537

San JosePeoria

SJC - PIA

SJCPIA

San Jose

Sat 5/23

6:30 am-4:57 pm

1 stop8h 27m

Greater Peoria

Sat 5/30

5:33 pm-10:35 pm

1 stop7h 02m

$564

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 San Jose, California 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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from San Jose, California is in March. Flight prices, which tend to average around $95, 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 March, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $118.

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

The cheapest day to depart from San Jose, California to Illinois is on a Wednesday when prices can be found for as low as $452. Flights from San Jose, California to Illinois on a Monday will generally be more expensive and average around $563. 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 at noon. Flights from San Jose, California to Illinois during this time can be as low as $444. Flights in the evening are often more expensive with an average ticket price of $521.

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 from San Jose, California to Illinois?

You are more likely to see cheaper flights to Illinois from San Jose, California when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $447 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, California for as low as $215 on momondo.

Cheap San Jose, California to Illinois flight deals and tips

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

Best Price Found	$203
Fastest flight time	4h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from San Jose, California in the past 72 hours is $203. The best round-trip flight deal from San Jose, California to Illinois found on momondo in the last 72 hours is $448.

The fastest flight from San Jose, California to Illinois takes 4h 00m

Direct flights go from San Jose, California to Illinois every day.

There are 98 airports in Illinois. From San Jose, California there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from San Jose, California to Illinois

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?
The number of operators available for flights from San Jose Airport to Illinois is 7 as of May 2026.
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, California to Illinois?
Based on momondo bookings for flights between San Jose, California and Illinois, the leading plane model is Boeing 737 MAX 8, making up 25.47% of the total bookings. Other popular models include Airbus A319 with 9.52%, Boeing 737-800 with 8.85%, and Boeing 737-700 with 6.84%.

Best airlines flying from San Jose, California to Illinois

Compare and see reviews for airlines that fly from San Jose, California to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $121	Free Cancellation	Rating 6.3 8,632 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $131	Free Cancellation	Rating 5.6 2,951 reviews	Search Frontier flights
American Airlines	PriceFrom $200	Free Cancellation	Rating 7.1 11,661 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $235	Free Cancellation	Rating 7.9 12,354 reviews	Search Alaska Airlines flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.9 8,445 reviews	Search Delta flights
Southwest	PriceFrom $270	Free Cancellation	Rating 8.0 4,295 reviews	Search Southwest flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 9,701 reviews	Search United Airlines 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.

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Popular cities in Illinois

Flights to New Yorkfrom $77

Flights to Los Angelesfrom $46

Flights to Orlandofrom $63

Flights to Miamifrom $56

Flights to Chicagofrom $59

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $48

Flights to Washington, D.C.from $57

Flights to Bostonfrom $73

Flights to Atlantafrom $50

Flights to Fort Lauderdalefrom $56

Flights to Dallasfrom $50

Cheap flights from San Jose, California to Illinois from $129

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, California to Illinois departing on 6/8. 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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Delta flights from San Jose, California to Illinois

Our best Delta deals on San Jose, California to Illinois flight tickets

Alaska Airlines flights from San Jose, California to Illinois

Our best Alaska Airlines deals on San Jose, California to Illinois flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from San Jose, California to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from San Jose, California to Illinois

What is the cheapest month to fly to Illinois?

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

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

What is the cheapest San Jose to Illinois flight route?

How far in advance should I book a flight from San Jose, California to Illinois?

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

What airlines fly to Illinois?

How many flights depart from San Jose, California to Illinois on average per day?

How many flights depart from San Jose, California to Illinois on average per week?

Cheap San Jose, California to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from San Jose, California to Illinois

Best airlines flying from San Jose, California to Illinois

Compare and see reviews for airlines that fly from San Jose, California to Illinois with momondo

Why use momondo?

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.

Find better results for your trip to Illinois

Popular cities in Illinois

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

San Jose, California flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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