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San Jose

$72+ Cheap flights from Illinois to San Jose, CA (SJC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SJC
Jan 7 — Jan 141
Rab 1/7
Rab 1/14
1 adult, Economy
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Cheap flight deals from Illinois to San Jose

Cheapest flights from Illinois to San Jose
Explore the most affordable flight options available from Illinois to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Desember 8, 2025.

This CheapOair deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jum 12/121:16 pmSTL - SJC
1 stop7h 57mFrontier
Min 12/143:27 pmSJC - STL
1 stop18h 45mFrontier
Deal found 12/7$293
This CheapOair deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jum 12/1212:59 pmORD - SJC
1 stop8h 14mFrontier
Min 12/143:27 pmSJC - ORD
1 stop18h 15mFrontier
Deal found 12/6$293
This Kiwi.com deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Rab 12/179:06 pmORD - SJC
1 stop19h 26mMultiple Airlines
Jum 1/97:36 pmSJC - ORD
2 stops25h 00mMultiple Airlines
Deal found 12/8$304
This Kiwi.com deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Rab 12/179:06 pmORD - SJC
1 stop19h 26mMultiple Airlines
Kam 1/811:27 amSJC - ORD
2 stops29h 31mMultiple Airlines
Deal found 12/8$314
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sel 12/237:01 pmORD - SJC
2 stops45h 31mFrontier
Kam 1/811:27 amSJC - ORD
1 stop8h 05mFrontier
Deal found 12/7$347
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sab 12/139:06 pmORD - SJC
1 stop19h 26mMultiple Airlines
Sen 1/197:31 pmSJC - ORD
2 stops49h 07mMultiple Airlines
Deal found 12/6$373
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sen 12/223:37 pmORD - SJC
1 stop9h 02mAlaska Airlines
Rab 1/712:46 pmSJC - ORD
1 stop8h 51mAlaska Airlines
Deal found 12/7$376
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sel 12/164:38 pmORD - SJC
2 stops47h 54mMultiple Airlines
Sen 1/1211:44 amSJC - ORD
1 stop7h 48mMultiple Airlines
Deal found 12/6$380
This Alaska Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sen 12/223:37 pmORD - SJC
1 stop9h 02mAlaska Airlines
Jum 1/97:00 amSJC - ORD
1 stop29h 29mAlaska Airlines
Deal found 12/7$384
This Kiwi.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sen 12/223:37 pmORD - SJC
1 stop9h 02mAlaska Airlines
Kam 1/82:59 pmSJC - ORD
1 stop6h 38mAlaska Airlines
Deal found 12/7$386
This Alaska Airlines deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jum 12/198:39 amORD - SJC
1 stop7h 37mAlaska Airlines
Min 1/118:04 pmSJC - ORD
1 stop16h 25mAlaska Airlines
Deal found 12/6$387
This Kiwi.com deal was found by Cheapflights users on 12/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Rab 12/246:08 pmORD - SJC
1 stop17h 14mAlaska Airlines
Sen 1/58:00 pmSJC - ORD
1 stop16h 37mAlaska Airlines
Deal found 12/5$388

Find flight deals from Illinois to San Jose

Keep the following information in mind while searching for Illinois to San Jose flight deals. Data was last updated Desember 8, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$255
(Kiwi.com)

One-way from

$72
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$493

Good round-trip deal

$397 or less

Good one-way deal

$244 or less
Provider with most accurate pricing for Chicago (CHI)-San Jose flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-San Jose flights.
Search Deals
From Illinois to San Jose
Search Deals
One-way flight from Illinois to San Jose
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Illinois to San Jose.
Search Deals
Price to beat on a one-way flight from Illinois to San Jose.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to San Jose that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Desember 8, 2025.
Use the filters below to find and compare flights from Illinois to San Jose that are best for you.

Fly from

Illinois

Fly to

San Jose

Route

Depart

Return

Price

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Sab 2/7

3:35 pm-9:48 am

1 stop20h 13m

San Jose

Sel 2/10

5:45 pm-2:29 pm

1 stop18h 44m

$272

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Sab 1/24

9:00 am-5:34 pm

1 stop10h 34m

San Jose

Sen 1/26

5:45 pm-2:29 pm

1 stop18h 44m

$277

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Sen 3/9

3:07 pm-10:56 pm

1 stop9h 49m

San Jose

Sab 3/14

2:53 pm-11:59 pm

1 stop7h 06m

$280

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Min 3/8

8:20 am-12:08 pm

1 stop29h 48m

San Jose

Sab 3/14

12:45 pm-11:59 pm

1 stop9h 14m

$287

PeoriaSan Jose

PIA - SJC

PIASJC

Greater Peoria

Sab 1/24

7:00 am-6:34 pm

2 stops13h 34m

San Jose

Sab 1/31

6:00 am-3:50 pm

1 stop7h 50m

$294

MolineSan Jose

MLI - SJC

MLISJC

Moline Quad-City

Sel 1/27

5:51 am-4:20 pm

2 stops12h 29m

San Jose

Sel 2/3

9:15 am-10:33 pm

2 stops11h 18m

$299

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Kam 2/26

6:35 am-5:38 pm

2 stops13h 03m

San Jose

Sel 3/3

6:20 pm-9:32 am

2 stops13h 12m

$305

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Jum 1/23

3:44 pm-10:35 pm

1 stop8h 51m

San Jose

Sen 1/26

7:45 am-11:50 pm

2 stops14h 05m

$311

MolineSan Jose

MLI - SJC

MLISJC

Moline Quad-City

Sab 4/4

5:50 am-12:03 pm

1 stop8h 13m

San Jose

Sel 4/7

1:15 pm-10:32 pm

1 stop7h 17m

$314

MolineSan Jose

MLI - SJC

MLISJC

Moline Quad-City

Rab 4/1

5:50 am-12:03 pm

1 stop8h 13m

San Jose

Rab 4/8

1:15 pm-10:32 pm

1 stop7h 17m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to San Jose

Have a flexible travel schedule? Discover the best time to fly to San Jose from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to San Jose

What is the cheapest month to book a flight from Illinois to San Jose, California?

Currently, October is the cheapest month in which you can book a flight from Illinois to San Jose, California (average of $80). Flying from Illinois to San Jose, California in November is currently the most expensive (average of $207). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to SJC?

Find hourly flight availability from Illinois to San Jose. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Desember 8, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 8% on flights from Illinois to San Jose, California by exploring options for tickets in the evening.

What is the cheapest day to fly from Illinois to San Jose, California?

Use this chart to determine the cheapest time to fly round-trip from Illinois to San Jose. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to San Jose, California flight should consider departing on Wednesday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Illinois to San Jose. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Jose from Illinois?

    For a flight from Illinois to San Jose, you will be flying into San Jose. San Jose (SJC) is just 2.9 mi from the center of the city.

  • How long is the flight from Illinois to San Jose, California?

    Departing from Illinois to San Jose, California will take you 9h 05m. Illinois and San Jose, California are separated by a distance of 1690 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to San Jose, California one-way?

    One-way options have recently been found by users for as low as $58 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $64 and Frontier from $66 one-way.

  • What are the most popular routes from Illinois to San Jose, California?

    The most popular flight routes from Illinois to San Jose, California are Chicago O'Hare Intl - San Jose, Chicago Midway - San Jose and Lambert-St Louis - San Jose.

  • What are the cheapest flights from Illinois to San Jose, California?

    On average you can expect to pay $490 for a flight from Illinois to San Jose, California. The cheapest flight overall is $238 while the most popular route, (Chicago O'Hare Intl - San Jose) is currently priced at $244.

  • Can I find deals for flights from Illinois to San Jose that include hotel bookings?

    Yes. In addition to deals on Illinois to San Jose flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to San Jose?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to San Jose.

  • Can I find deals for business class flights from Illinois to San Jose?

    Yes. Cheapflights offers flight deals from Illinois to San Jose by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to San Jose, California?

    Currently, October is the cheapest month in which you can book a flight from Illinois to San Jose, California (average of $80). Flying from Illinois to San Jose, California in November is currently the most expensive (average of $207). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 7 airlines flying from Illinois to San Jose

Discover the top 7 airlines that operate flights from Illinois to San Jose. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Desember 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$244FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$142Average$215FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$262Average$361FlexibilityNo cancel feeOn-time75%
DeltaCheapest$265Average$367FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$551FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$526FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$333Average$483FlexibilityNo cancel feeOn-time63%

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