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.

$169 CHEAP FLIGHTS from Illinois to San Jose

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

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, Feb 17 - Fri, Feb 19

11:50 am - 3:55 pmMDW Chicago Midway-SJC San Jose

6h 05m1 stop Denver Intl

9:15 am - 5:50 pmSJC San Jose-MDW Chicago Midway

6h 35m1 stop Hollywood Burbank

$336Southwest

Sun, Nov 22 - Tue, Dec 1

9:01 pm - 6:00 pmORD Chicago O'Hare Intl-SJC San Jose

22h 59m1 stop San Diego

7:20 am - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

14h 39m2 stops Los Angeles Seattle/Tacoma Intl

$338Alaska Airlines

Tue, Nov 24 - Fri, Nov 27

5:15 am - 3:30 pmORD Chicago O'Hare Intl-SJC San Jose

12h 15m1 stop Las Vegas Harry Reid Intl

4:15 pm - 5:10 amSJC San Jose-ORD Chicago O'Hare Intl

10h 55m1 stop Las Vegas Harry Reid Intl

$338Frontier

Sun, Nov 15 - Sat, Nov 21

6:30 am - 8:12 pmORD Chicago O'Hare Intl-SJC San Jose

15h 42m2 stops Denver Intl Los Angeles

4:15 pm - 11:00 amSJC San Jose-ORD Chicago O'Hare Intl

16h 45m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$339Frontier

Thu, Dec 17 - Sun, Jan 17

7:00 am - 1:55 pmORD Chicago O'Hare Intl-SJC San Jose

8h 55m1 stop San Diego

11:20 am - 10:08 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 48m1 stop San Diego

$340Alaska Airlines

Tue, Nov 10 - Fri, Nov 13

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

4h 45mnonstop

2:55 pm - 11:50 pmSJC San Jose-MDW Chicago Midway

6h 55m1 stop Phoenix Sky Harbor Intl

$343Southwest

Mon, Nov 16 - Wed, Nov 18

1:31 pm - 10:12 pmMDW Chicago Midway-SJC San Jose

10h 41m2 stops Detroit Metropolitan Wayne County Los Angeles

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

7h 54m1 stop Atlanta Hartsfield-Jackson

$352Delta

Mon, Nov 16 - Wed, Nov 18

7:45 am - 3:39 pmORD Chicago O'Hare Intl-SJC San Jose

9h 54m1 stop Los Angeles

6:00 am - 4:41 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 41m2 stops Salt Lake City Minneapolis St Paul

$352Delta

Wed, Feb 17 - Fri, Feb 19

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

9h 09m1 stop Phoenix Sky Harbor Intl

7:08 pm - 5:47 amSJC San Jose-ORD Chicago O'Hare Intl

8h 39m1 stop Phoenix Sky Harbor Intl

$362American Airlines

Fri, Nov 13 - Mon, Nov 16

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

8h 06m1 stop Dallas/Fort Worth

2:50 pm - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 09m1 stop Dallas/Fort Worth

$362American Airlines

Recent last minute flight deals from Illinois to San Jose

Sun, Nov 1 - Mon, Nov 30

5:15 pm - 1:46 pmORD Chicago O'Hare Intl-SJC San Jose

22h 31m1 stop Las Vegas Harry Reid Intl

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

13h 04m1 stop Los Angeles

$455Frontier

Sun, Nov 1 - Thu, Nov 5

5:15 pm - 1:46 pmORD Chicago O'Hare Intl-SJC San Jose

22h 31m1 stop Las Vegas Harry Reid Intl

2:41 pm - 5:13 amSJC San Jose-ORD Chicago O'Hare Intl

12h 32m1 stop Las Vegas Harry Reid Intl

$475Frontier

Mon, Nov 2 - Thu, Nov 5

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

6h 34m1 stop Phoenix Sky Harbor Intl

7:10 pm - 5:00 amSJC San Jose-ORD Chicago O'Hare Intl

7h 50m1 stop Phoenix Sky Harbor Intl

$536American Airlines

Thu, Oct 29 - Tue, Nov 3

5:30 pm - 10:59 pmPIA Greater Peoria-SJC San Jose

7h 29m1 stop Chicago O'Hare Intl

2:14 pm - 11:13 pmSJC San Jose-PIA Greater Peoria

6h 59m1 stop Chicago O'Hare Intl

$574United Airlines

Fri, Oct 30 - Mon, Nov 2

8:46 am - 3:08 pmMLI Moline Quad-City-SJC San Jose

8h 22m1 stop Denver Intl

1:00 pm - 9:12 pmSJC San Jose-MLI Moline Quad-City

6h 12m1 stop Denver Intl

$574United Airlines

Thu, Oct 29 - Tue, Nov 3

4:42 pm - 10:08 pmPIA Greater Peoria-SJC San Jose

7h 26m1 stop Dallas/Fort Worth

12:58 pm - 12:03 amSJC San Jose-PIA Greater Peoria

9h 05m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$579American Airlines

Mon, Nov 2 - Wed, Nov 4

9:30 am - 3:51 pmORD Chicago O'Hare Intl-SJC San Jose

8h 21m1 stop Seattle/Tacoma Intl

1:26 pm - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 33m1 stop Seattle/Tacoma Intl

$597Alaska Airlines

Fri, Oct 30 - Mon, Nov 2

6:00 am - 1:18 pmORD Chicago O'Hare Intl-SJC San Jose

9h 18m1 stop Seattle/Tacoma Intl

1:26 pm - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 33m1 stop Seattle/Tacoma Intl

$597Alaska Airlines

Thu, Oct 29 - Wed, Nov 4

12:13 pm - 10:08 pmBMI Bloomington-Normal-SJC San Jose

11h 55m2 stops Atlanta Hartsfield-Jackson Los Angeles

12:57 pm - 10:36 pmSJC San Jose-BMI Bloomington-Normal

7h 39m1 stop Atlanta Hartsfield-Jackson

$599Delta

Thu, Oct 29 - Wed, Nov 4

12:13 pm - 10:08 pmBMI Bloomington-Normal-SJC San Jose

11h 55m2 stops Atlanta Hartsfield-Jackson Los Angeles

9:48 am - 10:36 pmSJC San Jose-BMI Bloomington-Normal

10h 48m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$604Delta

Useful Info

Low season	January
High season	June
Cheapest flight	$169

Best time to beat the crowds but there is an average 2% 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.