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.

$159 CHEAP FLIGHTS from Illinois to San Jose

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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

Mon, Dec 21 - Wed, Jan 20

8:47 pm - 2:30 pmPIA Greater Peoria-SJC San Jose

19h 43m2 stops Phoenix-Mesa Gateway Los Angeles

3:47 pm - 8:36 pmSJC San Jose-PIA Greater Peoria

26h 49m1 stop Las Vegas Harry Reid Intl

$314Multiple Airlines

Sat, Dec 12 - Wed, Dec 23

7:25 am - 1:45 pmORD Chicago O'Hare Intl-SJC San Jose

32h 20m2 stops Denver Intl Los Angeles

3:25 pm - 6:54 amSJC San Jose-ORD Chicago O'Hare Intl

13h 29m1 stop Los Angeles

$347Frontier

Mon, Dec 14 - Tue, Dec 15

2:13 pm - 10:07 pmORD Chicago O'Hare Intl-SJC San Jose

9h 54m1 stop San Diego

9:54 am - 7:00 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 06m1 stop San Diego

$356Alaska Airlines

Wed, Feb 3 - Mon, Feb 8

8:00 am - 1:39 pmORD Chicago O'Hare Intl-SJC San Jose

7h 39m1 stop Seattle/Tacoma Intl

11:35 am - 1:13 pmSJC San Jose-ORD Chicago O'Hare Intl

23h 38m1 stop Portland

$356Alaska Airlines

Tue, Jan 12 - Tue, Jan 19

10:15 am - 1:00 pmMDW Chicago Midway-SJC San Jose

4h 45mnonstop

10:15 am - 4:20 pmSJC San Jose-MDW Chicago Midway

4h 05mnonstop

$357Southwest

Tue, Jan 12 - Tue, Jan 19

10:15 am - 1:00 pmMDW Chicago Midway-SJC San Jose

4h 45mnonstop

7:40 am - 4:35 pmSJC San Jose-MDW Chicago Midway

6h 55m1 stop Seattle/Tacoma Intl

$363Southwest

Tue, Jan 26 - Wed, Jan 27

6:00 am - 8:08 pmMDW Chicago Midway-SJC San Jose

16h 08m2 stops Atlanta Hartsfield-Jackson Los Angeles

5:59 pm - 8:58 amSJC San Jose-MDW Chicago Midway

12h 59m2 stops Los Angeles Minneapolis St Paul

$364Delta

Tue, Jan 26 - Wed, Jan 27

2:25 pm - 10:12 pmORD Chicago O'Hare Intl-SJC San Jose

9h 47m1 stop Seattle/Tacoma Intl

10:20 am - 10:28 pmSJC San Jose-ORD Chicago O'Hare Intl

10h 08m1 stop Los Angeles

$377Delta

Wed, Dec 9 - Wed, Dec 16

2:35 pm - 8:53 pmORD Chicago O'Hare Intl-SJC San Jose

8h 18m1 stop Denver Intl

2:11 pm - 8:30 pmSJC San Jose-ORD Chicago O'Hare Intl

4h 19mnonstop

$391United Airlines

Wed, Dec 16 - Tue, Jan 5

9:07 am - 11:59 amORD Chicago O'Hare Intl-SJC San Jose

4h 52mnonstop

4:05 pm - 11:58 pmSJC San Jose-ORD Chicago O'Hare Intl

5h 53m1 stop Denver Intl

$391United Airlines

Recent last minute flight deals from Illinois to San Jose

Fri, Nov 20 - Mon, Nov 30

10:00 pm - 2:15 pmORD Chicago O'Hare Intl-SJC San Jose

18h 15m1 stop Los Angeles

3:10 pm - 6:14 amSJC San Jose-ORD Chicago O'Hare Intl

13h 04m1 stop Los Angeles

$430Frontier

Fri, Nov 20 - Fri, Nov 27

10:00 pm - 2:15 pmORD Chicago O'Hare Intl-SJC San Jose

18h 15m1 stop Los Angeles

3:10 pm - 6:14 amSJC San Jose-ORD Chicago O'Hare Intl

13h 04m1 stop Los Angeles

$444Frontier

Wed, Nov 18 - Fri, Dec 18

7:00 am - 1:16 pmORD Chicago O'Hare Intl-SJC San Jose

8h 16m1 stop Seattle/Tacoma Intl

7:20 am - 6:54 pmSJC San Jose-ORD Chicago O'Hare Intl

9h 34m1 stop San Diego

$497Alaska Airlines

Thu, Nov 19 - Mon, Nov 23

2:15 pm - 10:31 pmORD Chicago O'Hare Intl-SJC San Jose

10h 16m1 stop San Diego

9:59 am - 8:03 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 04m1 stop San Diego

$532Alaska Airlines

Tue, Nov 17 - Thu, Nov 19

5:00 am - 11:06 amORD Chicago O'Hare Intl-SJC San Jose

8h 06m1 stop Dallas/Fort Worth

6:00 am - 3:30 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 30m1 stop Phoenix Sky Harbor Intl

$555American Airlines

Mon, Nov 16 - Thu, Nov 19

5:00 pm - 9:34 pmORD Chicago O'Hare Intl-SJC San Jose

6h 34m1 stop Phoenix Sky Harbor Intl

6:00 am - 3:30 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 30m1 stop Phoenix Sky Harbor Intl

$555American Airlines

Wed, Nov 18 - Fri, Dec 18

10:10 am - 12:55 pmMDW Chicago Midway-SJC San Jose

4h 45mnonstop

6:05 am - 2:50 pmSJC San Jose-MDW Chicago Midway

6h 45m1 stop Austin Bergstrom

$639Southwest

Wed, Nov 18 - Fri, Dec 18

10:10 am - 12:55 pmMDW Chicago Midway-SJC San Jose

4h 45mnonstop

6:05 am - 3:40 pmSJC San Jose-MDW Chicago Midway

7h 35m2 stops Denver Intl Omaha Eppley Airfield

$644Southwest

Fri, Nov 20 - Sun, Nov 29

6:00 am - 11:50 amMLI Moline Quad-City-SJC San Jose

7h 50m1 stop Atlanta Hartsfield-Jackson

1:00 pm - 11:08 pmSJC San Jose-MLI Moline Quad-City

8h 08m1 stop Atlanta Hartsfield-Jackson

$644Delta

Tue, Nov 17 - Tue, Nov 24

6:00 am - 11:50 amMDW Chicago Midway-SJC San Jose

7h 50m1 stop Atlanta Hartsfield-Jackson

1:00 pm - 10:54 pmSJC San Jose-MDW Chicago Midway

7h 54m1 stop Atlanta Hartsfield-Jackson

$742Delta

Useful Info

Low season	January
High season	June
Cheapest flight	$159

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly with an average 2% 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.