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.

$170 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

Mon, Nov 2 - Mon, Nov 9

6:20 am - 5:38 pmORD Chicago O'Hare Intl-SJC San Jose

13h 18m2 stops Minneapolis St Paul Los Angeles

9:07 pm - 1:37 pmSJC San Jose-ORD Chicago O'Hare Intl

14h 30m1 stop Los Angeles

$301Frontier

Mon, Nov 2 - Mon, Nov 9

3:00 pm - 10:08 pmORD Chicago O'Hare Intl-SJC San Jose

9h 08m1 stop Los Angeles

9:07 pm - 1:37 pmSJC San Jose-ORD Chicago O'Hare Intl

14h 30m1 stop Los Angeles

$306Frontier

Wed, Nov 4 - Mon, Nov 9

2:07 pm - 9:51 pmORD Chicago O'Hare Intl-SJC San Jose

9h 44m1 stop Portland

7:37 am - 6:59 pmSJC San Jose-ORD Chicago O'Hare Intl

9h 22m1 stop San Diego

$309Alaska Airlines

Tue, Jan 19 - Wed, Jan 27

6:57 pm - 9:30 amORD Chicago O'Hare Intl-SJC San Jose

16h 33m1 stop Seattle/Tacoma Intl

2:35 pm - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 24m1 stop Seattle/Tacoma Intl

$309Alaska Airlines

Fri, Nov 13 - Wed, Nov 25

6:28 pm - 10:40 amORD Chicago O'Hare Intl-SJC San Jose

18h 12m1 stop Los Angeles

6:11 pm - 3:43 pmSJC San Jose-ORD Chicago O'Hare Intl

19h 32m1 stop Los Angeles

$313Delta

Wed, Nov 11 - Wed, Nov 25

6:28 pm - 8:58 amORD Chicago O'Hare Intl-SJC San Jose

16h 30m1 stop Los Angeles

6:11 pm - 3:43 pmSJC San Jose-ORD Chicago O'Hare Intl

19h 32m1 stop Los Angeles

$313Delta

Mon, Nov 2 - Mon, Nov 9

9:15 pm - 11:55 pmMDW Chicago Midway-SJC San Jose

4h 40mnonstop

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

4h 00mnonstop

$349Southwest

Tue, Dec 22 - Tue, Dec 29

8:40 pm - 11:25 pmMDW Chicago Midway-SJC San Jose

4h 45mnonstop

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

4h 00mnonstop

$349Southwest

Tue, Nov 3 - Sat, Nov 14

8:12 pm - 10:59 pmORD Chicago O'Hare Intl-SJC San Jose

4h 47mnonstop

6:30 am - 12:54 pmSJC San Jose-ORD Chicago O'Hare Intl

4h 24mnonstop

$349United Airlines

Sat, Nov 14 - Wed, Nov 18

9:02 am - 12:02 pmORD Chicago O'Hare Intl-SJC San Jose

5h 00mnonstop

2:14 pm - 8:32 pmSJC San Jose-ORD Chicago O'Hare Intl

4h 18mnonstop

$349United Airlines

Recent last minute flight deals from Illinois to San Jose

Sat, Oct 17 - Tue, Nov 17

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

26h 06m1 stop Los Angeles

7:37 am - 6:59 pmSJC San Jose-ORD Chicago O'Hare Intl

9h 22m1 stop San Diego

$425Multiple Airlines

Mon, Oct 19 - Thu, Nov 5

7:20 am - 2:55 pmORD Chicago O'Hare Intl-SJC San Jose

9h 35m1 stop San Diego

7:37 am - 6:59 pmSJC San Jose-ORD Chicago O'Hare Intl

9h 22m1 stop San Diego

$443Alaska Airlines

Mon, Oct 19 - Mon, Nov 9

7:20 am - 2:55 pmORD Chicago O'Hare Intl-SJC San Jose

9h 35m1 stop San Diego

9:39 am - 6:59 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 20m1 stop San Diego

$443Alaska Airlines

Sat, Oct 17 - Thu, Nov 5

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

26h 06m1 stop Los Angeles

9:07 pm - 12:21 amSJC San Jose-ORD Chicago O'Hare Intl

25h 14m2 stops Los Angeles Denver Intl

$487Frontier

Sun, Oct 18 - Sat, Oct 24

6:48 am - 12:09 pmORD Chicago O'Hare Intl-SJC San Jose

7h 21m1 stop Phoenix Sky Harbor Intl

12:02 pm - 10:10 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 08m1 stop Dallas/Fort Worth

$529American Airlines

Sun, Oct 18 - Sat, Oct 24

5:00 am - 12:09 pmORD Chicago O'Hare Intl-SJC San Jose

9h 09m1 stop Phoenix Sky Harbor Intl

6:00 am - 2:33 pmSJC San Jose-ORD Chicago O'Hare Intl

6h 33m1 stop Phoenix Sky Harbor Intl

$529American Airlines

Tue, Oct 20 - Tue, Nov 10

7:35 am - 3:51 pmORD Chicago O'Hare Intl-SJC San Jose

10h 16m2 stops Salt Lake City Los Angeles

8:40 pm - 1:37 pmSJC San Jose-ORD Chicago O'Hare Intl

14h 57m1 stop Los Angeles

$555Delta

Mon, Oct 19 - Tue, Nov 10

7:35 am - 5:38 pmORD Chicago O'Hare Intl-SJC San Jose

12h 03m2 stops Salt Lake City Los Angeles

6:00 pm - 1:37 pmSJC San Jose-ORD Chicago O'Hare Intl

17h 37m1 stop Los Angeles

$555Delta

Tue, Oct 20 - Wed, Nov 4

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

4h 47mnonstop

2:14 pm - 8:32 pmSJC San Jose-ORD Chicago O'Hare Intl

4h 18mnonstop

$573United Airlines

Tue, Oct 20 - Wed, Nov 4

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

4h 47mnonstop

1:00 pm - 10:46 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 46m1 stop Denver Intl

$583United Airlines

Useful Info

Low season	January
High season	June
Cheapest flight	$170

Most popular time to fly with an average 3% 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.