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$54+ Cheap flights from San Jose (SJC) to Illinois

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — ORD
dic. 7 — dic. 141
sáb. 12/7
sáb. 12/14
1 adult, Economy
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Cheap flight deals from San Jose to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 2, 2024.

Find flight deals from San Jose to Illinois

Cheapest flights from San Jose to Illinois
Explore the most affordable flight options available from San Jose to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 2, 2024.

This FlightHub deal was found by Cheapflights users on 12/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/1711:10 amSJC - STL
1 stop19h 03mFrontier
lun. 12/239:29 pmSTL - SJC
1 stop18h 20mFrontier
Deal found 12/2$118
This Frontier deal was found by Cheapflights users on 12/1. 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.
dom. 12/82:28 pmSJC - MDW
1 stop7h 45mFrontier
lun. 12/167:15 amMDW - SJC
1 stop6h 53mFrontier
Deal found 12/1$170
This CheapOair deal was found by Cheapflights users on 12/1. 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.
lun. 12/162:28 pmSJC - ORD
1 stop20h 21mMultiple Airlines
sáb. 1/49:54 pmORD - SJC
1 stop11h 52mMultiple Airlines
Deal found 12/1$170
This FlightHub deal was found by Cheapflights users on 12/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/314:29 pmSJC - ORD
1 stop11h 01mSpirit Airlines
mar. 1/79:54 pmORD - SJC
1 stop13h 41mSpirit Airlines
Deal found 12/1$178
This Frontier deal was found by Cheapflights users on 12/1. 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.
dom. 12/82:28 pmSJC - ORD
1 stop8h 11mFrontier
mié. 12/186:00 amORD - SJC
1 stop8h 30mFrontier
Deal found 12/1$190
This United Airlines deal was found by Cheapflights users on 12/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3110:55 pmSJC - STL
1 stop9h 04mUnited Airlines
mar. 1/76:30 amSTL - SJC
1 stop7h 26mUnited Airlines
Deal found 12/1$246
This American Airlines deal was found by Cheapflights users on 12/2. 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.
mar. 12/316:10 amSJC - STL
1 stop8h 30mAmerican Airlines
mar. 1/72:27 pmSTL - SJC
1 stop6h 24mAmerican Airlines
Deal found 12/2$307
This Delta deal was found by Cheapflights users on 11/30. 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.
mié. 12/185:40 amSJC - STL
1 stop5h 50mDelta
mar. 1/77:40 amSTL - SJC
1 stop6h 47mDelta
Deal found 11/30$312
This Delta deal was found by Cheapflights users on 12/1. 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.
mar. 12/316:15 amSJC - MDW
1 stop8h 56mDelta
mar. 1/71:26 pmMDW - SJC
1 stop9h 44mDelta
Deal found 12/1$326
This Delta deal was found by Cheapflights users on 12/1. 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.
mié. 12/257:00 amSJC - MLI
1 stop7h 18mDelta
mié. 1/225:47 amMLI - SJC
1 stop8h 23mDelta
Deal found 12/1$343
This Delta deal was found by Cheapflights users on 11/30. 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.
mié. 12/255:55 amSJC - ORD
1 stop5h 56mDelta
mar. 1/71:40 pmORD - SJC
2 stops11h 01mDelta
Deal found 11/30$351
This Mytrip deal was found by Cheapflights users on 12/2. 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.
sáb. 12/78:44 pmSJC - RFD
1 stop13h 11mMultiple Airlines
jue. 12/1212:15 pmRFD - SJC
1 stop9h 34mMultiple Airlines
Deal found 12/2$363

Find flights from San Jose to Illinois within your budget

Customize your flight search to find flights from San Jose to Illinois 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 2,650,959 searches. Data last updated diciembre 2, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

dom. 1/26

1:11 pm-9:16 am

1 stop18h 05m

Lambert-St Louis

vie. 1/31

8:31 pm-4:21 pm

1 stop21h 50m

$158

San JoseChicago

SJC - MDW

SJCMDW

San Jose

vie. 2/7

1:11 pm-12:17 am

1 stop9h 06m

Chicago Midway

dom. 2/9

7:15 am-12:11 pm

1 stop6h 56m

$168

San JoseChicago

SJC - ORD

SJCORD

San Jose

vie. 2/7

1:11 pm-12:32 am

1 stop9h 21m

Chicago O'Hare Intl

dom. 2/9

7:25 am-12:11 pm

1 stop6h 46m

$168

San JoseChicago

SJC - ORD

SJCORD

San Jose

lun. 12/16

2:28 pm-12:49 pm

1 stop20h 21m

Chicago O'Hare Intl

sáb. 1/4

9:54 pm-7:46 am

1 stop11h 52m

$170

San JoseChicago

SJC - ORD

SJCORD

San Jose

mié. 1/15

10:19 am-5:30 am

2 stops17h 11m

Chicago O'Hare Intl

mié. 1/29

1:39 pm-8:39 pm

1 stop9h 00m

$171

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

mar. 12/31

10:55 pm-9:59 am

1 stop9h 04m

Lambert-St Louis

mar. 1/7

6:30 am-11:56 am

1 stop7h 26m

$246

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

dom. 1/26

11:45 am-11:14 pm

2 stops9h 29m

Lambert-St Louis

vie. 1/31

5:00 pm-11:52 pm

1 stop8h 52m

$305

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

mar. 12/31

6:10 am-4:40 pm

1 stop8h 30m

Lambert-St Louis

mar. 1/7

2:27 pm-6:51 pm

1 stop6h 24m

$307

San JoseChicago

SJC - ORD

SJCORD

San Jose

mar. 2/18

6:25 am-11:56 pm

1 stop15h 31m

Chicago O'Hare Intl

mié. 2/26

7:00 am-5:35 pm

1 stop12h 35m

$315

San JoseChicago

SJC - MDW

SJCMDW

San Jose

mar. 12/31

6:15 am-5:11 pm

1 stop8h 56m

Chicago Midway

mar. 1/7

1:26 pm-9:10 pm

1 stop9h 44m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 46 results
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Best time to book a flight from San Jose to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from San Jose 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.

Travel insights for flights from San Jose to Illinois

Get recent, data-driven insights about flights from San Jose to Illinois including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from San Jose to Illinois (average of $232). Flying from San Jose to Illinois in June is currently the most expensive (average of $308). 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 SJC to IL?

Find hourly flight availability from San Jose to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 2, 2024.

When flying from San Jose to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated diciembre 2, 2024.
Read through reviews of airlines operating flights from San Jose to Illinois, such as Spirit Airlines, Alaska Airlines and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,951 reviews

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,951 reviews
Southwest
8.1
Very good
4,951 reviews

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,513 reviews
Southwest
8.1
Very good
4,951 reviews

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,698 reviews
Southwest
8.1
Very good
4,951 reviews

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,141 reviews
Southwest
8.1
Very good
4,951 reviews

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,951 reviews

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from San Jose to Illinois. 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 from for flights from San Jose to Illinois?

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

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

    The cheapest airlines for a one-way flight from San Jose to Illinois are Frontier ($54), Spirit Airlines ($90), and American Airlines ($123).

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

    The most popular route from San Jose to Illinois is San Jose - Chicago O'Hare Intl. You may also consider San Jose - Chicago Midway or San Jose - Lambert-St Louis.

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

    While on average a flight from San Jose to Illinois is generally $696, our data shows the cheapest flight currently is $149. When looking at the most popular route, (San Jose - Chicago O'Hare Intl), you can expect to pay $133 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose to Illinois 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 San Jose to Illinois?

    Currently, September is the cheapest month in which you can book a flight from San Jose to Illinois (average of $232). Flying from San Jose to Illinois in June is currently the most expensive (average of $308). 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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Alternative routes for San Jose to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from San Jose to Illinois

Discover the top 7 airlines that operate flights from San Jose to Illinois. 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 2,650,959 searches. Data last updated diciembre 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$100Average$297FlexibilityNo cancel feeOn-time75%
FrontierCheapest$132Average$220FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$134Average$265FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$203Average$491FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$234Average$523FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$501FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$358Average$532FlexibilityNo cancel feeOn-time63%
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