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$56+ Cheap flights from San Jose to Denver (SJC - DEN)

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — DEN
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Jose to Denver Intl are usually found in January or February, booked 35 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from San Jose to Denver

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Denver (DEN). 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 septiembre 17, 2025.

Round-trip from

$120
(Frontier)

One-way from

$56
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$228

Good round-trip deal

$214 or less

Good one-way deal

$130 or less
From San Jose to Denver Intl
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One-way flight from San Jose to Denver Intl
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Highest demand for flights based on searches. 17% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Jose to Denver Intl.
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Price to beat on a one-way flight from San Jose to Denver Intl.
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Find flight deals from San Jose to Denver

Cheapest flights from San Jose to Denver
Explore the most affordable flight options available from San Jose to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

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.
vie. 10/2412:27 pmSJC - DEN
Nonstop2h 47mFrontier
dom. 10/269:48 amDEN - SJC
Nonstop2h 44mFrontier
Deal found 9/16$120
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/206:43 pmSJC - DEN
1 stop8h 16mFrontier
vie. 10/249:48 amDEN - SJC
Nonstop2h 44mFrontier
Deal found 9/15$138
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/296:45 pmSJC - DEN
1 stop8h 15mFrontier
mié. 10/110:29 pmDEN - SJC
1 stop20h 58mFrontier
Deal found 9/17$143
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.
lun. 9/226:45 pmSJC - DEN
1 stop8h 15mFrontier
jue. 9/257:00 amDEN - SJC
1 stop12h 27mFrontier
Deal found 9/15$144
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/1412:27 pmSJC - DEN
Nonstop2h 47mFrontier
lun. 11/171:08 pmDEN - SJC
1 stop5h 26mFrontier
Deal found 9/15$149
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/712:27 pmSJC - DEN
Nonstop2h 47mFrontier
lun. 11/101:08 pmDEN - SJC
1 stop5h 26mFrontier
Deal found 9/15$150
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2912:25 pmSJC - DEN
Nonstop2h 48mFrontier
jue. 10/211:33 amDEN - SJC
Nonstop2h 41mFrontier
Deal found 9/15$153
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.
lun. 10/66:45 pmSJC - DEN
1 stop8h 14mFrontier
lun. 10/2011:03 amDEN - SJC
1 stop7h 45mFrontier
Deal found 9/16$161
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.
jue. 9/257:12 pmSJC - DEN
1 stop24h 11mFrontier
lun. 9/2910:00 amDEN - SJC
1 stop8h 45mFrontier
Deal found 9/15$162
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2412:27 pmSJC - DEN
Nonstop2h 47mFrontier
lun. 10/271:56 pmDEN - SJC
1 stop4h 52mFrontier
Deal found 9/14$165

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose to Denver 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 septiembre 17, 2025.
Use the filters below to find and compare flights from San Jose to Denver that are best for you.

Fly from

San Jose

Fly to

Denver

Route

Depart

Return

Price

San JoseDenver

SJC - DEN

SJCDEN

San Jose

mié. 10/29

10:25 am-11:34 am

1 stop24h 09m

Denver Intl

lun. 11/3

7:19 pm-12:01 pm

1 stop17h 42m

$177

San JoseDenver

SJC - DEN

SJCDEN

San Jose

mar. 10/14

1:30 pm-2:00 pm

1 stop23h 30m

Denver Intl

mar. 10/21

7:50 pm-9:57 am

1 stop15h 07m

$203

San JoseDenver

SJC - DEN

SJCDEN

San Jose

lun. 3/2

12:45 pm-11:19 am

1 stop21h 34m

Denver Intl

mié. 3/4

12:30 pm-4:43 pm

1 stop5h 13m

$203

San JoseDenver

SJC - DEN

SJCDEN

San Jose

sáb. 10/11

6:00 pm-11:47 pm

1 stop4h 47m

Denver Intl

vie. 10/17

7:01 am-10:39 pm

1 stop16h 38m

$206

San JoseDenver

SJC - DEN

SJCDEN

San Jose

mié. 10/8

6:42 am-7:10 pm

1 stop11h 28m

Denver Intl

vie. 10/17

3:00 pm-10:39 pm

1 stop8h 39m

$206

San JoseDenver

SJC - DEN

SJCDEN

San Jose

mar. 10/7

1:30 pm-11:47 pm

1 stop9h 17m

Denver Intl

vie. 10/17

7:01 am-10:39 pm

1 stop16h 38m

$206

San JoseDenver

SJC - DEN

SJCDEN

San Jose

mar. 10/7

6:42 am-11:47 pm

1 stop16h 05m

Denver Intl

mié. 10/15

7:01 am-3:05 pm

1 stop9h 04m

$206

San JoseDenver

SJC - DEN

SJCDEN

San Jose

mié. 10/8

6:42 am-11:47 pm

1 stop16h 05m

Denver Intl

mié. 10/15

7:01 am-3:05 pm

1 stop9h 04m

$206

San JoseDenver

SJC - DEN

SJCDEN

San Jose

sáb. 11/8

6:14 pm-11:51 pm

1 stop4h 37m

Denver Intl

mié. 11/12

8:20 am-2:23 pm

1 stop7h 03m

$212

San JoseDenver

SJC - DEN

SJCDEN

San Jose

jue. 12/4

6:45 am-10:15 am

Nonstop2h 30m

Denver Intl

dom. 12/7

7:50 am-9:35 am

Nonstop2h 45m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 21 results
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The best insider tips for San Jose to Denver 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 San Jose to Denver trip
Airlines
Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat for extra comfort.


Early check-in helps secure your place as Frontier often overbooks flights.

Read more about Frontierby Marisa Garcia
United Airlines

Basic Economy allows a personal item only; no carry-on bags unless exceptions apply.


Economy Plus offers extra legroom seats at the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Airports
SJC

SJC offers free Wi-Fi throughout the airport, making it easy to stay connected before your flight to DEN.

Read more about SJCby Daniel Scheffler
DEN

Take the A Line train from DEN to Union Station for a quick 37-minute ride into downtown Denver.

Read more about DENby Emily Zemler
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

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 San Jose to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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.

Cheapflights Insights

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

How far ahead should I book a flight from San Jose to Denver?

Use this chart to determine the optimal time to book a round-trip flight from San Jose to Denver. Price data was last updated on September 12, 2025.

The price you pay for your flight from San Jose to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 35 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 San Jose to Denver?

Currently, October is the cheapest month in which you can book a flight from San Jose to Denver (average of $197). Flying from San Jose to Denver in March is currently the most expensive (average of $278). 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 DEN?

Find hourly flight availability from San Jose to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

One of the essential ways to save on airfare from San Jose to Denver 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 20% on airfare.

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

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

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

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated septiembre 17, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Jose to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

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.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

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.
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

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.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

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.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

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 San Jose to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Jose to Denver?

    Booking a flight from San Jose (SJC) to Denver Intl (DEN) is your only option if you wish to fly from San Jose to Denver. On a typical day, there are 14 flights from San Jose to Denver Intl, all of which are around 2h 25m for a nonstop flight. You can also purchase a plane ticket from 5 airlines when you book a flight from San Jose to Denver.

  • How popular is this San Jose to Denver flight route?

    This flight path from San Jose to Denver Intl was viewed by 48 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    A quick flight from San Jose to Denver can take about 24h 09m. Alaska Airlines provides one of the quickest options available for as low as $177. There are 945 mi between San Jose and Denver.

  • What are the cheapest airlines flying from San Jose to Denver round-trip?

    According to our current data, Frontier ($62), Delta ($158), and United Airlines ($172) offers the cheapest pricing from San Jose to Denver. You may be able to fly from San Jose to Denver for 76% less than the average price by searching for these airlines.

  • What are the most reliable airlines from San Jose to Denver?

    The top 3 most reliable airlines when flying from San Jose to Denver are SWISS (100%), Lufthansa (89%) and Air Canada (80%).

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

    While on average a flight from San Jose to Denver is generally $382, our data shows the cheapest flight currently is $83. When looking at the most popular route, (San Jose - Denver Intl), you can expect to pay $162 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from San Jose to Denver (average of $197). Flying from San Jose to Denver in March is currently the most expensive (average of $278). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Golden
Winter Park
Lakewood
Broomfield
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Top 5 airlines flying from San Jose to Denver

Discover the top 5 airlines that operate flights from San Jose to Denver. 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$175FlexibilityNo cancel feeOn-time62%
DeltaCheapest$158Average$216FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$172Average$356FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$184Average$331FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$211Average$251FlexibilityNo cancel feeOn-time71%

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