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San Jose

$113+ Cheap flights from Illinois to San Jose (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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SJC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$275
(Mytrip)

One-way from

$113
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$476

Good round-trip deal

$407 or less

Good one-way deal

$252 or less
From Illinois to San Jose
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One-way flight from Illinois to San Jose
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Highest demand for flights based on searches. 8% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Illinois to San Jose.
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Price to beat on a one-way flight from Illinois to San Jose.
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Find 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3011:28 amSTL - SJC
2 stops24h 38mSpirit Airlines
Thu 7/101:10 pmSJC - STL
2 stops18h 42mSpirit Airlines
Deal found 6/10$275
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:20 amMLI - SJC
1 stop7h 59mAmerican Airlines
Thu 8/211:09 pmSJC - MLI
1 stop8h 13mAmerican Airlines
Deal found 6/12$289
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 8/316:20 amORD - SJC
1 stop7h 37mAlaska Airlines
Wed 9/38:00 amSJC - ORD
1 stop12h 04mAlaska Airlines
Deal found 6/11$289
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/133:18 pmORD - SJC
2 stops26h 09mSpirit Airlines
Wed 7/166:30 amSJC - ORD
1 stop21h 33mSpirit Airlines
Deal found 6/11$290
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/215:20 pmSTL - SJC
1 stop5h 45mSouthwest
Thu 10/306:45 amSJC - STL
1 stop6h 30mSouthwest
Deal found 6/11$292
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:00 amMLI - SJC
2 stops13h 04mDelta
Sat 9/276:45 amSJC - MLI
1 stop7h 37mDelta
Deal found 6/9$294
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/316:00 amORD - SJC
1 stop7h 16mFrontier
Thu 9/412:17 pmSJC - ORD
1 stop9h 36mFrontier
Deal found 6/11$297
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:01 amSTL - SJC
1 stop7h 18mAmerican Airlines
Tue 8/196:00 amSJC - STL
1 stop8h 47mAmerican Airlines
Deal found 6/11$297
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/258:45 pmPIA - SJC
1 stop15h 21mMultiple Airlines
Sun 6/296:00 amSJC - PIA
3 stops30h 58mMultiple Airlines
Deal found 6/10$305
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/46:25 amMDW - SJC
1 stop8h 58mFrontier
Thu 7/1012:18 pmSJC - MDW
1 stop6h 36mFrontier
Deal found 6/11$310
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2012:43 pmMDW - SJC
1 stop9h 04mDelta
Tue 8/2610:56 pmSJC - MDW
1 stop7h 39mDelta
Deal found 6/10$319
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:15 pmSTL - SJC
1 stop6h 21mDelta
Tue 7/1511:00 pmSJC - STL
1 stop8h 41mDelta
Deal found 6/10$319

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 June 12, 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

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Mon 6/30

11:28 am-10:06 am

2 stops24h 38m

San Jose

Thu 7/10

1:10 pm-9:52 am

2 stops18h 42m

$275

MolineSan Jose

MLI - SJC

MLISJC

Moline Quad-City

Sat 8/16

6:20 am-12:19 pm

1 stop7h 59m

San Jose

Thu 8/21

1:09 pm-11:22 pm

1 stop8h 13m

$289

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Sun 8/31

6:20 am-11:57 am

1 stop7h 37m

San Jose

Wed 9/3

8:00 am-10:04 pm

1 stop12h 04m

$289

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Sun 7/13

3:18 pm-3:27 pm

2 stops26h 09m

San Jose

Wed 7/16

6:30 am-6:03 am

1 stop21h 33m

$290

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 10/21

5:20 pm-9:05 pm

1 stop5h 45m

San Jose

Thu 10/30

6:45 am-3:15 pm

1 stop6h 30m

$292

MolineSan Jose

MLI - SJC

MLISJC

Moline Quad-City

Thu 8/28

6:00 am-5:04 pm

2 stops13h 04m

San Jose

Sat 9/27

6:45 am-4:22 pm

1 stop7h 37m

$294

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Sun 8/31

6:00 am-11:16 am

1 stop7h 16m

San Jose

Thu 9/4

12:17 pm-11:53 pm

1 stop9h 36m

$297

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 8/6

7:01 am-12:19 pm

1 stop7h 18m

San Jose

Tue 8/19

6:00 am-4:47 pm

1 stop8h 47m

$297

PeoriaSan Jose

PIA - SJC

PIASJC

Greater Peoria

Wed 6/25

8:45 pm-10:06 am

1 stop15h 21m

San Jose

Sun 6/29

6:00 am-2:58 pm

3 stops30h 58m

$305

ChicagoSan Jose

MDW - SJC

MDWSJC

Chicago Midway

Fri 7/4

6:25 am-1:23 pm

1 stop8h 58m

San Jose

Thu 7/10

12:18 pm-8:54 pm

1 stop6h 36m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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?

Currently, September is the cheapest month in which you can book a flight from Illinois to San Jose (average of $255). Flying from Illinois to San Jose in June is currently the most expensive (average of $344). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to San Jose as you normally would.

Rainfall in San Jose by month

Plan your trip to San Jose by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Jose ranges from 0.0 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. July is typically the driest time to visit San Jose when rainfall is around 0.0 in.

Temperature in San Jose by month

Plan your trip to San Jose by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Jose, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing San Jose

Get insights into the airlines that provide service to San Jose. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Jose. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Illinois to San Jose. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $113. However, be on the lookout for offers from Frontier and Hawaiian Airlines, as they are both options that can get you from Illinois to San Jose for a low price.

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

    The most popular flight routes from Illinois to San Jose 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?

    On average you can expect to pay $403 for a flight from Illinois to San Jose. The cheapest flight overall is $117 while the most popular route, (Chicago O'Hare Intl - San Jose) is currently priced at $172.

  • 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?

    Currently, September is the cheapest month in which you can book a flight from Illinois to San Jose (average of $255). Flying from Illinois to San Jose in June is currently the most expensive (average of $344). 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.

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to San Jose

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$90Average$248FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$127Average$243FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$273Average$508FlexibilityNo cancel feeOn-time71%
DeltaCheapest$277Average$387FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$497FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$376Average$478FlexibilityNo cancel feeOn-time63%

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