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

Thu, Nov 12 - Sun, Nov 15

7:30 am - 1:55 pmMDW Chicago Midway-SJC San Jose

8h 25m1 stop Baltimore/Washington

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

4h 00mnonstop

$333Southwest

Sat, Nov 14 - Mon, Nov 16

6:30 am - 1:46 pmORD Chicago O'Hare Intl-SJC San Jose

33h 16m2 stops Denver Intl Las Vegas Harry Reid Intl

9:07 pm - 3:31 pmSJC San Jose-ORD Chicago O'Hare Intl

16h 24m2 stops Los Angeles Dallas/Fort Worth

$335Frontier

Fri, Dec 18 - Mon, Jan 18

6:00 am - 10:40 amMDW Chicago Midway-SJC San Jose

6h 40m1 stop San Diego

9:00 pm - 5:45 amSJC San Jose-MDW Chicago Midway

6h 45m1 stop Phoenix Sky Harbor Intl

$336Southwest

Sat, Nov 21 - Tue, Nov 24

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

12h 15m1 stop Las Vegas Harry Reid Intl

4:15 pm - 12:53 amSJC San Jose-ORD Chicago O'Hare Intl

30h 38m2 stops Las Vegas Harry Reid Intl Denver Intl

$336Frontier

Fri, Dec 4 - Sat, Dec 5

1:43 pm - 10:12 pmORD Chicago O'Hare Intl-SJC San Jose

10h 29m1 stop Dallas/Fort Worth

1:02 pm - 9:58 pmSJC San Jose-ORD Chicago O'Hare Intl

6h 56m1 stop Phoenix Sky Harbor Intl

$362American Airlines

Fri, Jan 8 - Wed, Jan 13

5:00 am - 12:08 pmORD Chicago O'Hare Intl-SJC San Jose

9h 08m1 stop Phoenix Sky Harbor Intl

6:00 am - 4:01 pmSJC San Jose-ORD Chicago O'Hare Intl

8h 01m1 stop Dallas/Fort Worth

$362American Airlines

Sat, Dec 5 - Mon, Dec 7

3:19 pm - 10:00 pmORD Chicago O'Hare Intl-SJC San Jose

8h 41m1 stop Seattle/Tacoma Intl

3:23 pm - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

6h 36m1 stop San Diego

$377Alaska Airlines

Thu, Jan 14 - Mon, Jan 18

2:13 pm - 9:03 pmORD Chicago O'Hare Intl-SJC San Jose

8h 50m1 stop San Diego

7:48 pm - 1:15 pmSJC San Jose-ORD Chicago O'Hare Intl

15h 27m1 stop San Diego

$377Alaska Airlines

Tue, Nov 17 - Mon, Nov 30

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

$379Delta

Thu, Nov 19 - Mon, Nov 30

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

7h 50m1 stop Atlanta Hartsfield-Jackson

10:40 pm - 10:26 amSJC San Jose-MLI Moline Quad-City

9h 46m1 stop Atlanta Hartsfield-Jackson

$379Delta

Recent last minute flight deals from Illinois to San Jose

Sun, Oct 25 - Thu, Oct 29

3:30 pm - 1:20 pmORD Chicago O'Hare Intl-SJC San Jose

23h 50m1 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

$485Frontier

Wed, Oct 28 - Mon, Nov 2

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

9h 35m1 stop San Diego

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

12h 32m1 stop Las Vegas Harry Reid Intl

$509Multiple Airlines

Tue, Oct 27 - Sat, Oct 31

2:37 pm - 10:08 pmCMI Champaign University-Willard-SJC San Jose

9h 31m1 stop Dallas/Fort Worth

6:00 am - 8:25 pmSJC San Jose-CMI Champaign University-Willard

12h 25m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$522American Airlines

Sat, Oct 24 - Mon, Nov 2

2:14 pm - 7:53 pmORD Chicago O'Hare Intl-SJC San Jose

7h 39m1 stop Portland

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

8h 33m1 stop Seattle/Tacoma Intl

$542Alaska Airlines

Mon, Oct 26 - Sun, Nov 1

7:49 pm - 9:54 amORD Chicago O'Hare Intl-SJC San Jose

16h 05m1 stop San Diego

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

7h 20m1 stop San Diego

$542Alaska Airlines

Fri, Oct 23 - Mon, Oct 26

9:05 am - 1:11 pmMLI Moline Quad-City-SJC San Jose

6h 06m1 stop Denver Intl

2:14 pm - 10:59 pmSJC San Jose-MLI Moline Quad-City

6h 45m1 stop Chicago O'Hare Intl

$574United Airlines

Fri, Oct 23 - Mon, Oct 26

11:08 am - 7:00 pmMLI Moline Quad-City-SJC San Jose

9h 52m1 stop Atlanta Hartsfield-Jackson

6:34 pm - 10:18 amSJC San Jose-MLI Moline Quad-City

13h 44m2 stops Los Angeles Atlanta Hartsfield-Jackson

$579Delta

Mon, Oct 26 - Thu, Oct 29

5:00 am - 11:04 amORD Chicago O'Hare Intl-SJC San Jose

8h 04m1 stop Dallas/Fort Worth

12:59 pm - 11:59 pmSJC San Jose-ORD Chicago O'Hare Intl

9h 00m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$692American Airlines

Mon, Oct 26 - Sun, Nov 1

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

5h 00mnonstop

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

4h 24mnonstop

$712United Airlines

Sun, Oct 25 - Thu, Nov 5

6:04 am - 11:44 amMDW Chicago Midway-SJC San Jose

7h 40m1 stop Atlanta Hartsfield-Jackson

6:20 am - 4:47 pmSJC San Jose-MDW Chicago Midway

8h 27m1 stop Minneapolis St Paul

$732Delta

Useful Info

Low season	January
High season	June
Cheapest flight	$170

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.