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.

$120 CHEAP FLIGHTS from Illinois to San Jose

Save 21% 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

Thu, Nov 19 - Mon, Nov 23

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

10h 16m1 stop San Diego

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

10h 55m1 stop Las Vegas Harry Reid Intl

$253Multiple Airlines

Thu, Sep 24 - Sat, Sep 26

7:55 pm - 10:42 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

$257United Airlines

Sat, Oct 17 - Tue, Oct 20

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

$257Southwest

Thu, Nov 5 - Tue, Nov 10

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

4h 40mnonstop

11:10 am - 5:15 pmSJC San Jose-MDW Chicago Midway

4h 05mnonstop

$257Southwest

Mon, Oct 19 - Thu, Oct 22

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

9h 35m1 stop San Diego

9:02 pm - 5:16 amSJC San Jose-ORD Chicago O'Hare Intl

6h 14m1 stop Las Vegas Harry Reid Intl

$257Multiple Airlines

Thu, Oct 1 - Tue, Oct 6

7:55 pm - 10:42 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

$257United Airlines

Thu, Dec 17 - Sat, Jan 9

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

8h 55m1 stop San Diego

7:17 am - 10:08 pmSJC San Jose-ORD Chicago O'Hare Intl

12h 51m1 stop San Diego

$273Alaska Airlines

Fri, Nov 6 - Mon, Nov 9

6:35 pm - 9:43 amORD Chicago O'Hare Intl-SJC San Jose

17h 08m1 stop Seattle/Tacoma Intl

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

7h 20m1 stop San Diego

$273Alaska Airlines

Wed, Sep 30 - Wed, Oct 7

6:10 am - 12:27 pmORD Chicago O'Hare Intl-SJC San Jose

8h 17m1 stop Minneapolis St Paul

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

10h 04m1 stop Seattle/Tacoma Intl

$277Delta

Tue, Nov 3 - Sat, Nov 7

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

9h 22m1 stop Seattle/Tacoma Intl

1:40 pm - 10:05 pmSJC San Jose-ORD Chicago O'Hare Intl

6h 25m1 stop Salt Lake City

$277Delta

Recent last minute flight deals from Illinois to San Jose

Thu, Sep 10 - Mon, Sep 14

8:55 pm - 12:43 pmORD Chicago O'Hare Intl-SJC San Jose

17h 48m1 stop Las Vegas Harry Reid Intl

1:38 pm - 5:38 amSJC San Jose-ORD Chicago O'Hare Intl

14h 00m1 stop Las Vegas Harry Reid Intl

$390Frontier

Thu, Sep 10 - Sun, Sep 13

8:55 pm - 12:43 pmORD Chicago O'Hare Intl-SJC San Jose

17h 48m1 stop Las Vegas Harry Reid Intl

10:47 pm - 5:38 amSJC San Jose-ORD Chicago O'Hare Intl

28h 51m1 stop Las Vegas Harry Reid Intl

$392Frontier

Fri, Sep 11 - Wed, Oct 21

2:22 pm - 7:40 pmORD Chicago O'Hare Intl-SJC San Jose

7h 18m1 stop Portland

6:33 am - 6:53 pmSJC San Jose-ORD Chicago O'Hare Intl

10h 20m1 stop San Diego

$453Alaska Airlines

Sat, Sep 12 - Wed, Oct 21

7:20 am - 1:45 pmORD Chicago O'Hare Intl-SJC San Jose

8h 25m1 stop San Diego

9:15 am - 6:53 pmSJC San Jose-ORD Chicago O'Hare Intl

7h 38m1 stop San Diego

$453Alaska Airlines

Wed, Sep 9 - Thu, Sep 10

1:45 pm - 6:29 pmORD Chicago O'Hare Intl-SJC San Jose

6h 44m1 stop Phoenix Sky Harbor Intl

12:48 pm - 9:30 pmSJC San Jose-ORD Chicago O'Hare Intl

6h 42m1 stop Phoenix Sky Harbor Intl

$523American Airlines

Wed, Sep 9 - Fri, Sep 11

1:45 pm - 6:29 pmORD Chicago O'Hare Intl-SJC San Jose

6h 44m1 stop Phoenix Sky Harbor Intl

6:00 am - 4:05 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 05m1 stop Phoenix Sky Harbor Intl

$523American Airlines

Thu, Sep 10 - Mon, Sep 14

6:08 am - 11:41 amBMI Bloomington-Normal-SJC San Jose

7h 33m1 stop Atlanta Hartsfield-Jackson

8:41 pm - 11:18 amSJC San Jose-BMI Bloomington-Normal

12h 37m2 stops Los Angeles Atlanta Hartsfield-Jackson

$557Delta

Fri, Sep 11 - Wed, Oct 21

8:03 pm - 10:50 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

$557United Airlines

Sat, Sep 12 - Wed, Oct 21

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

$557United Airlines

Tue, Sep 8 - Wed, Sep 9

3:40 pm - 9:22 pmSTL Lambert-St Louis-SJC San Jose

7h 42m1 stop Atlanta Hartsfield-Jackson

6:00 am - 1:30 pmSJC San Jose-STL Lambert-St Louis

5h 30m1 stop Salt Lake City

$558Delta

Useful Info

Low season	January
High season	June
Cheapest flight	$120

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.