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San Jose

$137+ Cheap flights from Chicago (CHI) 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SJC
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to San Jose are usually found in February or November, booked 19 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Find flight deals from Chicago to San Jose

Cheapest flights from Chicago to San Jose
Explore the most affordable flight options available from Chicago to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/27. 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.
Wed 12/38:59 pmORD - SJC
1 stop16h 59mAlaska Airlines
Mon 12/83:09 pmSJC - ORD
1 stop6h 41mAlaska Airlines
Deal found 10/27$249
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 12/83:05 pmORD - SJC
1 stop22h 53mAlaska Airlines
Mon 12/157:57 pmSJC - ORD
1 stop21h 57mAlaska Airlines
Deal found 10/29$250
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:37 pmORD - SJC
1 stop9h 02mAlaska Airlines
Tue 1/612:15 pmSJC - ORD
1 stop24h 14mAlaska Airlines
Deal found 10/30$252
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Thu 11/136:30 amORD - SJC
2 stops31h 02mMultiple Airlines
Mon 11/176:19 pmSJC - ORD
1 stop9h 13mMultiple Airlines
Deal found 10/29$257
This Frontier deal was found by Cheapflights users on 10/27. 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.
Mon 11/36:00 amORD - SJC
1 stop7h 32mFrontier
Fri 11/712:27 pmSJC - ORD
1 stop9h 48mFrontier
Deal found 10/27$258
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/199:20 amORD - SJC
1 stop7h 03mAlaska Airlines
Tue 12/163:09 pmSJC - ORD
1 stop21h 00mAlaska Airlines
Deal found 10/29$260
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:37 pmORD - SJC
1 stop9h 02mAlaska Airlines
Tue 12/307:00 amSJC - ORD
1 stop14h 59mAlaska Airlines
Deal found 10/30$262
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 12/88:59 pmORD - SJC
1 stop16h 59mAlaska Airlines
Thu 12/117:00 amSJC - ORD
1 stop14h 50mAlaska Airlines
Deal found 10/28$263
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:05 pmORD - SJC
1 stop22h 53mAlaska Airlines
Sat 12/67:00 amSJC - ORD
1 stop14h 50mAlaska Airlines
Deal found 10/30$268
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/209:20 amORD - SJC
1 stop7h 03mAlaska Airlines
Wed 12/1712:35 pmSJC - ORD
1 stop9h 15mAlaska Airlines
Deal found 10/29$270
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 11/199:20 amORD - SJC
1 stop7h 03mAlaska Airlines
Thu 12/47:00 amSJC - ORD
1 stop14h 50mAlaska Airlines
Deal found 10/28$272
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/198:00 amORD - SJC
2 stops10h 38mAlaska Airlines
Wed 12/1712:35 pmSJC - ORD
1 stop9h 15mAlaska Airlines
Deal found 10/29$276

Cheap flight deals from Chicago to San Jose

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to San Jose (SJC). 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 October 30, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$231
(KAYAK)

One-way from

$137
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$370

Good round-trip deal

$393 or less

Good one-way deal

$193 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 Chicago (CHI) to San Jose
Search Deals
One-way flight from Chicago (CHI) to San Jose
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to San Jose.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to San Jose.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 October 30, 2025.
Use the filters below to find and compare flights from Chicago to San Jose that are best for you.

Fly from

Chicago

Fly to

San Jose

Route

Depart

Return

Price

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Wed 12/3

3:05 pm-11:58 am

1 stop22h 53m

San Jose

Sat 12/6

7:00 am-11:50 pm

1 stop14h 50m

$268

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Thu 12/11

3:05 pm-10:42 pm

1 stop9h 37m

San Jose

Sat 12/13

6:40 pm-11:50 pm

1 stop27h 10m

$283

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Wed 12/24

3:37 pm-10:39 pm

1 stop9h 02m

San Jose

Tue 1/6

9:35 am-11:59 pm

2 stops12h 24m

$288

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Fri 12/12

8:55 am-5:08 pm

1 stop10h 13m

San Jose

Sat 12/13

7:00 am-11:50 pm

1 stop14h 50m

$290

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Mon 12/8

6:00 am-5:37 pm

2 stops13h 37m

San Jose

Thu 12/11

7:00 am-11:50 pm

1 stop14h 50m

$298

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Sat 12/20

8:58 pm-11:16 am

1 stop16h 18m

San Jose

Mon 1/5

2:53 pm-8:02 pm

1 stop27h 09m

$302

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Fri 12/12

8:55 am-5:08 pm

1 stop10h 13m

San Jose

Sun 12/14

7:00 am-11:50 pm

1 stop14h 50m

$302

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Fri 12/19

3:37 pm-10:39 pm

1 stop9h 02m

San Jose

Tue 12/30

7:00 am-11:59 pm

1 stop14h 59m

$312

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Wed 12/24

3:37 pm-10:39 pm

1 stop9h 02m

San Jose

Fri 1/2

6:15 am-6:29 am

1 stop22h 14m

$312

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Wed 11/19

9:20 am-2:23 pm

1 stop7h 03m

San Jose

Tue 12/2

6:15 am-11:59 pm

2 stops15h 44m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 44 results
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Compare providers for flights from Chicago to San Jose

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to San Jose in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-San Jose, California flights, users find the pricing of Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Chicago-San Jose, California flight deals on Cheapflights vs. Gotogate >95% of the time. Price accuracy is based on data collected from Chicago-San Jose, California flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-San Jose, California flights, Cheapflights users trust Gotogate the most. Gotogate has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-San Jose, California flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to San Jose

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

How far ahead should I book a flight from Chicago to San Jose, California?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to San Jose. Price data was last updated on October 24, 2025.

Booking 19 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to San Jose, California. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Chicago to San Jose, California (average of $80). Flying from Chicago to San Jose, California in December is currently the most expensive (average of $202). 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 CHI to SJC?

Find hourly flight availability from Chicago 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 October 30, 2025.

One of the essential ways to save on airfare from Chicago to San Jose, California is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 34% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to San Jose. Price data was last updated on October 26, 2025.

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

What’s the top layover airport for flights from Chicago to San Jose, California?

Share of 1-stop round-trip flights from Chicago to San Jose, California chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 67% of 1-stop itineraries from Chicago to San Jose, California on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to San Jose, California?

Average round-trip fare for 1-stop flights from Chicago to San Jose, California, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $170.

What’s the fastest layover option from Chicago to San Jose, California?

Shortest average travel time for 1-stop one-way flights from Chicago to San Jose, California, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 10h 23m.

Which airport typically offers the quickest layover for flights from Chicago to San Jose, California?

Average layover duration for 1-stop one-way flights from Chicago to San Jose, California, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 2h 58m.

The best insider tips for Chicago to San Jose flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to San Jose trip
Airports
ORD

At ORD, Garrett Popcorn near gate B8 is a must-try snack before your flight.

Read more about ORDby Ramsey Qubein
MDW

For a quick check-in at MDW, use the indoor bridge to reach gates after security, reducing congestion and queues.

Read more about MDWby Ramsey Qubein
SJC

For a quick exit from SJC, use rideshare services with designated pick-up spots at all terminals.

Read more about SJCby Daniel Scheffler
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on SJC

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more

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 October 30, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and United Airlines from Chicago to San Jose by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,115 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

    Located just 2.9 mi from the city center, San Jose is the airport most travelers will use when flying to San Jose from Chicago. Booking flights from Chicago to San Jose (SJC) should be relatively easy as there are 0 daily inbound flights from Chicago from 7 different airlines.

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

    A quick flight from Chicago to San Jose, California can take about 7h 35m. Alaska Airlines provides one of the quickest options available for as low as $369. Chicago and San Jose, California are separated by a distance of 1832 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago to San Jose, California round-trip?

    Frontier, at $80, was found to be the cheapest airline from Chicago to San Jose, California.Alternate airlines to your destination round-trip include Spirit Airlines and Delta. Frontier is 80% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $137 on Alaska Airlines. Other airlines that offer cheap prices include Southwest from $180 and Delta from $190 one-way.

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

    Looking for the cheapest flight from Chicago to San Jose, California? While on average our users pay $388, our data indicates the cheapest price to be $168. The most popular route (Chicago O'Hare Intl - San Jose), is priced around $232.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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 Chicago to San Jose, California?

    Currently, October is the cheapest month in which you can book a flight from Chicago to San Jose, California (average of $80). Flying from Chicago to San Jose, California in December is currently the most expensive (average of $202). 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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Alternative routes for Chicago to San Jose

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

Discover the top 7 airlines that operate flights from Chicago 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$238FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$142Average$220FlexibilityNo cancel feeOn-time65%
DeltaCheapest$265Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$267Average$338FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$333Average$477FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$340Average$509FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$352Average$620FlexibilityNo cancel feeOn-time71%

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