How does KAYAK find such low prices on flights from Illinois to San Jose?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to San Jose.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to San Jose?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Jose from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to San Jose?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Jose with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to San Jose?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Jose from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$127 CHEAP FLIGHTS from Illinois to San Jose

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Flight Deals

Cheap Flights from Illinois to San Jose

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to San Jose

Wed, Oct 7 - Thu, Oct 15

6:30 am - 8:07 pmORD Chicago O'Hare Intl-SJC San Jose

39h 37m2 stops Denver Intl Los Angeles Los Angeles

2:15 pm - 6:34 amSJC San Jose-ORD Chicago O'Hare Intl

14h 19m1 stop Los Angeles Los Angeles

$254Frontier

Thu, Oct 15 - Mon, Oct 19

8:01 pm - 8:07 pmORD Chicago O'Hare Intl-SJC San Jose

26h 06m1 stop Los Angeles Los Angeles

2:15 pm - 6:34 amSJC San Jose-ORD Chicago O'Hare Intl

14h 19m1 stop Los Angeles Los Angeles

$257Frontier

Sat, Oct 24 - Sat, Oct 31

7:00 am - 1:18 pmORD Chicago O'Hare Intl-SJC San Jose

8h 18m1 stop Seattle/Tacoma Intl

8:02 am - 6:20 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 18m1 stop Seattle/Tacoma Intl

$272Alaska Airlines

Tue, Oct 20 - Mon, Oct 26

7:00 am - 3:52 pmORD Chicago O'Hare Intl-SJC San Jose

10h 52m1 stop Seattle/Tacoma Intl

10:37 am - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

11h 22m1 stop Seattle/Tacoma Intl

$283Alaska Airlines

Wed, Oct 7 - Tue, Oct 13

6:35 am - 1:57 pmORD Chicago O'Hare Intl-SJC San Jose

9h 22m1 stop Seattle/Tacoma Intl

11:30 am - 11:34 pmSJC San Jose-ORD Chicago O'Hare Intl

10h 04m1 stop Seattle/Tacoma Intl

$283Delta

Tue, Oct 20 - Mon, Oct 26

6:35 am - 1:57 pmORD Chicago O'Hare Intl-SJC San Jose

9h 22m1 stop Seattle/Tacoma Intl

2:37 pm - 11:34 pmSJC San Jose-ORD Chicago O'Hare Intl

6h 57m1 stop Seattle/Tacoma Intl

$283Delta

Sat, Oct 17 - Sat, Oct 24

12:50 pm - 3:25 pmMDW Chicago Midway-SJC San Jose

4h 35mnonstop

9:05 am - 3:05 pmSJC San Jose-MDW Chicago Midway

4h 00mnonstop

$335Southwest

Sat, Oct 24 - Wed, Oct 28

7:10 pm - 9:45 pmMDW Chicago Midway-SJC San Jose

4h 35mnonstop

11:00 pm - 5:00 amSJC San Jose-MDW Chicago Midway

4h 00mnonstop

$335Southwest

Tue, Sep 29 - Thu, Oct 1

9:14 am - 12:01 pmORD Chicago O'Hare Intl-SJC San Jose

4h 47mnonstop

2:08 pm - 8:35 pmSJC San Jose-ORD Chicago O'Hare Intl

4h 27mnonstop

$335United Airlines

Tue, Sep 29 - Wed, Sep 30

7:55 pm - 10:42 pmORD Chicago O'Hare Intl-SJC San Jose

4h 47mnonstop

6:30 am - 12:52 pmSJC San Jose-ORD Chicago O'Hare Intl

4h 22mnonstop

$335United Airlines

Recent last minute flight deals from Illinois to San Jose

Sat, Sep 12 - Sun, Sep 13

12:17 pm - 12:43 pmSTL Lambert-St Louis-SJC San Jose

26h 26m1 stop Las Vegas Harry Reid Intl

10:47 pm - 11:17 amSJC San Jose-STL Lambert-St Louis

10h 30m1 stop Las Vegas Harry Reid Intl

$395Frontier

Sat, Sep 12 - Sun, Sep 13

12:17 pm - 12:43 pmSTL Lambert-St Louis-SJC San Jose

26h 26m1 stop Las Vegas Harry Reid Intl

10:47 pm - 11:17 amSJC San Jose-STL Lambert-St Louis

10h 30m1 stop Las Vegas Harry Reid Intl

$401Frontier

Tue, Sep 15 - Wed, Sep 30

7:20 am - 9:23 amORD Chicago O'Hare Intl-SJC San Jose

28h 03m1 stop San Diego

2:13 pm - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 46m1 stop Seattle/Tacoma Intl

$543Alaska Airlines

Sat, Sep 12 - Mon, Sep 14

6:32 am - 11:45 amMLI Moline Quad-City-SJC San Jose

7h 13m1 stop Chicago O'Hare Intl

2:10 pm - 10:35 pmSJC San Jose-MLI Moline Quad-City

6h 25m1 stop Chicago O'Hare Intl

$557United Airlines

Sat, Sep 12 - Mon, Sep 14

11:19 am - 7:51 pmMLI Moline Quad-City-SJC San Jose

10h 32m2 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles

10:50 pm - 10:13 amSJC San Jose-MLI Moline Quad-City

9h 23m1 stop Atlanta Hartsfield-Jackson

$562Delta

Tue, Sep 15 - Tue, Sep 29

6:05 am - 11:36 amMDW Chicago Midway-SJC San Jose

7h 31m1 stop Atlanta Hartsfield-Jackson

6:40 am - 4:15 pmSJC San Jose-MDW Chicago Midway

7h 35m1 stop Atlanta Hartsfield-Jackson

$566Delta

Sat, Sep 12 - Sun, Sep 13

3:34 pm - 10:01 pmSTL Lambert-St Louis-SJC San Jose

8h 27m1 stop Dallas/Fort Worth

6:00 am - 4:40 pmSJC San Jose-STL Lambert-St Louis

8h 40m1 stop Dallas/Fort Worth

$570American Airlines

Sat, Sep 12 - Sun, Sep 13

10:14 am - 6:29 pmSTL Lambert-St Louis-SJC San Jose

10h 15m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

6:00 am - 4:40 pmSJC San Jose-STL Lambert-St Louis

8h 40m1 stop Dallas/Fort Worth

$575American Airlines

Tue, Sep 15 - Mon, Sep 21

1:03 pm - 8:00 pmORD Chicago O'Hare Intl-SJC San Jose

8h 57m1 stop Seattle/Tacoma Intl

7:29 am - 7:21 pmSJC San Jose-ORD Chicago O'Hare Intl

9h 52m1 stop San Diego

$577Alaska Airlines

Tue, Sep 15 - Thu, Oct 1

8:59 am - 11:45 amORD Chicago O'Hare Intl-SJC San Jose

4h 46mnonstop

2:08 pm - 8:35 pmSJC San Jose-ORD Chicago O'Hare Intl

4h 27mnonstop

$596United Airlines

Useful Info

Low season	January
High season	June
Cheapest flight	$127

Most popular time to fly with an average 4% increase in price.

Flight from Chicago O'Hare Airport to San Jose

How does KAYAK find such low prices on flights from Illinois to San Jose?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to San Jose.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to San Jose?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Jose from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to San Jose?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Jose with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to San Jose?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Jose from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.