San Jose

$79+ Cheap flights from Chicago (CHI) 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SJC
Oct 17 — Oct 241
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Cheapflights Tip: The best prices from Chicago to San Jose are usually found in October or February, booked 19 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

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 September 17, 2025.

Round-trip from

$188
(Frontier)

One-way from

$79
(Kiwi.com)

Popular in

September

Cheapest in

October

Average price

$517

Good round-trip deal

$343 or less

Good one-way deal

$155 or less
From Chicago (CHI) to San Jose
One-way flight from Chicago (CHI) to San Jose
High demand for flights, 3% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Chicago (CHI) to San Jose.
Price to beat on a one-way flight from Chicago (CHI) to San Jose.

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 September 17, 2025.

This Frontier deal was found by Cheapflights users on 9/17. 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 10/316:00 amORD - SJC
1 stop7h 32mFrontier
Mon 11/312:27 pmSJC - ORD
1 stop9h 48mFrontier
Deal found 9/17$188
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/111:15 amORD - SJC
1 stop10h 45mSpirit Airlines
Thu 10/26:35 amSJC - ORD
1 stop13h 01mSpirit Airlines
Deal found 9/16$192
This Frontier deal was found by Cheapflights users on 9/16. 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 10/176:50 amORD - SJC
1 stop6h 42mFrontier
Fri 10/2412:27 pmSJC - ORD
1 stop10h 32mFrontier
Deal found 9/16$196
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 11/76:00 amORD - SJC
1 stop7h 32mMultiple Airlines
Tue 11/113:00 pmSJC - ORD
1 stop6h 59mMultiple Airlines
Deal found 9/16$198
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:15 amORD - SJC
1 stop10h 45mMultiple Airlines
Sun 10/512:26 pmSJC - ORD
1 stop19h 11mMultiple Airlines
Deal found 9/15$200
This Orbitz deal was found by Cheapflights users on 9/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:50 amORD - SJC
1 stop6h 42mMultiple Airlines
Wed 10/2910:25 amSJC - ORD
1 stop6h 34mMultiple Airlines
Deal found 9/15$204
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Thu 10/25:35 amORD - SJC
1 stop9h 39mFrontier
Mon 10/66:45 pmSJC - ORD
2 stops27h 08mFrontier
Deal found 9/15$206
This Frontier deal was found by Cheapflights users on 9/16. 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 9/296:00 amORD - SJC
1 stop7h 30mFrontier
Thu 10/22:14 pmSJC - ORD
1 stop7h 45mFrontier
Deal found 9/16$210
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/223:50 pmORD - SJC
1 stop20h 07mAlaska Airlines
Sat 10/256:00 pmSJC - ORD
1 stop27h 59mAlaska Airlines
Deal found 9/16$218
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 9/296:05 pmORD - SJC
1 stop18h 40mMultiple Airlines
Mon 10/66:45 pmSJC - ORD
2 stops27h 08mMultiple Airlines
Deal found 9/15$220
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/299:00 amORD - SJC
1 stop8h 21mMultiple Airlines
Tue 10/71:30 pmSJC - ORD
1 stop8h 29mMultiple Airlines
Deal found 9/14$221
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/36:00 amORD - SJC
1 stop7h 30mMultiple Airlines
Wed 10/86:42 amSJC - ORD
1 stop10h 17mMultiple Airlines
Deal found 9/14$222

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 September 17, 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

Thu 11/6

2:54 pm-10:37 pm

1 stop9h 43m

San Jose

Wed 11/12

7:00 am-7:55 pm

1 stop10h 55m

$247

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Fri 11/7

7:37 am-3:57 pm

1 stop10h 20m

San Jose

Tue 11/11

2:21 pm-11:58 pm

1 stop7h 37m

$249

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Tue 10/14

7:59 pm-9:57 am

1 stop15h 58m

San Jose

Tue 10/21

1:30 pm-11:59 pm

1 stop8h 29m

$257

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Wed 1/21

7:15 am-5:52 pm

2 stops12h 37m

San Jose

Sun 1/25

10:10 am-11:44 pm

2 stops11h 34m

$260

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Fri 2/20

2:05 pm-12:15 pm

1 stop24h 10m

San Jose

Sun 2/22

12:45 pm-11:10 pm

1 stop8h 25m

$275

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Fri 10/31

5:53 pm-8:55 am

2 stops17h 02m

San Jose

Mon 11/3

8:05 pm-1:54 pm

1 stop15h 49m

$287

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Thu 10/9

3:50 pm-10:39 pm

1 stop8h 49m

San Jose

Mon 10/13

7:54 pm-2:50 pm

1 stop16h 56m

$308

ChicagoSan Jose

ORD - SJC

ORDSJC

Chicago O'Hare Intl

Thu 11/6

2:54 pm-10:37 pm

1 stop9h 43m

San Jose

Sun 11/9

10:25 am-11:59 pm

1 stop11h 34m

$309

ChicagoSan Jose

MDW - SJC

MDWSJC

Chicago Midway

Sat 11/8

1:06 pm-10:08 pm

2 stops11h 02m

San Jose

Wed 11/12

12:39 pm-11:32 pm

1 stop8h 53m

$319

ChicagoSan Jose

MDW - SJC

MDWSJC

Chicago Midway

Sat 11/8

3:00 pm-8:26 pm

1 stop7h 26m

San Jose

Mon 11/10

7:30 pm-9:01 am

2 stops11h 31m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 43 results
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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

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?

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 September 12, 2025.

The price you pay for your flight from Chicago to San Jose may vary depending on when you book. For the best chance of a lower fare, look to book 19 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Chicago to San Jose (average of $255). Flying from Chicago to San Jose in June is currently the most expensive (average of $359). 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 September 17, 2025.

One of the essential ways to save on airfare from Chicago to San Jose is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 16% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to San Jose. Price data was last updated on September 14, 2025.

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

Weekly flight availability from Chicago to San Jose

Explore weekly flight availability from Chicago to San Jose. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 17, 2025.

The most flights from CHI to SJC are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Chicago to San Jose?

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

Share of 1-stop round-trip flights from Chicago to San Jose 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 on Cheapflights.

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

Average round-trip fare for 1-stop flights from Chicago to San Jose, 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?

Shortest average travel time for 1-stop one-way flights from Chicago to San Jose, 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?

Average layover duration for 1-stop one-way flights from Chicago to San Jose, 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.

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 September 17, 2025.
Get a feel of what it's like to fly with Southwest, Delta, 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.

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
8.0
Very good

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 3 daily inbound flights from Chicago from 7 different airlines.

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

    Departing from Chicago to San Jose will take you 4h 30m. The distance between Chicago and San Jose is about 1832 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 flying from Chicago to San Jose round-trip?

    According to our current data, Frontier ($90), Spirit Airlines ($133), and Alaska Airlines ($188) offers the cheapest pricing from Chicago to San Jose. Frontier is priced at 78% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Chicago to San Jose are Hawaiian Airlines ($109), Alaska Airlines ($115), and Delta ($130).

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

    Looking for the cheapest flight from Chicago to San Jose? While on average our users pay $398, our data indicates the cheapest price to be $131. The most popular route (Chicago O'Hare Intl - San Jose), is priced around $195.

  • 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?

    Currently, September is the cheapest month in which you can book a flight from Chicago to San Jose (average of $255). Flying from Chicago to San Jose in June is currently the most expensive (average of $359). 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.

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$90Average$244FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$133Average$257FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$188Average$371FlexibilityNo cancel feeOn-time75%
DeltaCheapest$265Average$382FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$314Average$515FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$333Average$483FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$352Average$530FlexibilityNo cancel feeOn-time71%

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