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.
$84+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — DEN
Jun 17 — Jun 241
1 adult, Economy
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Find cheap flights from San Jose to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Jose to Denver Intl are usually found in August or September, booked 85 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 June 12, 2025.
Round-trip from | $172 (Frontier) |
|---|---|
One-way from | $84 (Southwest) |
Popular in | June |
Cheapest in | August |
Average price | $360 |
Good round-trip deal | $307 or less |
Good one-way deal | $146 or less |
Find flight deals from San Jose to Denver
Cheapest flights from San Jose to DenverExplore 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 June 12, 2025.
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 June 12, 2025.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1712:25 pmSJC - DEN
Nonstop2h 30mSouthwest
Thu 9/186:10 pmDEN - SJC
1 stop4h 35mSouthwest
Deal found 6/12![Southwest logo]()
$167
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/107:00 pmSJC - DEN
1 stop8h 00mFrontier
Thu 8/149:42 amDEN - SJC
Nonstop2h 40mFrontier
Deal found 6/12![Frontier logo]()
$172
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/272:28 pmSJC - DEN
1 stop8h 31mAlaska Airlines
Tue 10/288:20 amDEN - SJC
1 stop4h 41mAlaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$176
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/97:00 amSJC - DEN
Nonstop2h 33mUnited Airlines
Wed 8/137:25 pmDEN - SJC
Nonstop2h 37mUnited Airlines
Deal found 6/12![United Airlines logo]()
$178
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/116:30 amSJC - DEN
1 stop15h 51mMultiple Airlines
Sun 7/139:42 amDEN - SJC
Nonstop2h 40mMultiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$213
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.
Fri 8/151:45 pmSJC - DEN
1 stop5h 00mDelta
Mon 8/186:25 pmDEN - SJC
1 stop6h 14mDelta
Deal found 6/9![Delta logo]()
$217
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.
Sat 8/26:00 amSJC - DEN
1 stop4h 30mAmerican Airlines
Thu 8/76:58 pmDEN - SJC
1 stop4h 27mAmerican Airlines
Deal found 6/11![American Airlines logo]()
$237
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 June 12, 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
Sun 8/10
7:00 pm-4:00 am
1 stop8h 00m
Denver Intl
Thu 8/14
9:42 am-11:22 am
Nonstop2h 40m
$172
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Wed 9/3
12:25 pm-3:55 pm
Nonstop2h 30m
Denver Intl
Sun 9/7
9:20 pm-10:55 pm
Nonstop2h 35m
$177
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Sat 8/9
7:00 am-10:33 am
Nonstop2h 33m
Denver Intl
Wed 8/13
7:25 pm-9:02 pm
Nonstop2h 37m
$178
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Sat 8/16
6:00 am-11:30 am
1 stop4h 30m
Denver Intl
Wed 8/20
2:35 pm-6:27 pm
1 stop4h 52m
$197
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Fri 7/11
6:30 am-11:21 pm
1 stop15h 51m
Denver Intl
Sun 7/13
9:42 am-11:22 am
Nonstop2h 40m
$213
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Fri 8/15
1:45 pm-7:45 pm
1 stop5h 00m
Denver Intl
Mon 8/18
6:25 pm-11:39 pm
1 stop6h 14m
$217
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Wed 9/3
9:30 am-8:27 pm
2 stops9h 57m
Denver Intl
Wed 9/10
9:23 pm-9:11 am
1 stop12h 48m
$235
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Thu 9/4
3:50 pm-8:45 pm
1 stop3h 55m
$84
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Tue 8/26
6:00 am-11:30 am
1 stop4h 30m
$89
San JoseDenver
SJC - DEN
SJCDEN
San Jose
Fri 8/8
2:12 pm-11:21 pm
1 stop8h 09m
$90
Showing 1-10 of 15 results
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
![United Airlines]()
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.
Airports
Our travel experts
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 June 9, 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 85 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 June 12, 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 afternoon tend to be the most expensive. A flight at noon could potentially save you up to 10% 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 June 8, 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.
Weekly flight availability from San Jose to Denver
Explore weekly flight availability from San Jose to Denver. 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 June 12, 2025.
The most flights from SJC to DEN are scheduled on a Monday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
Rainfall in Denver by month
Plan your trip to Denver by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.
Temperature in Denver by month
Plan your trip to Denver by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Denver, 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 30.2 F).
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 June 12, 2025.
To help decide which airline to fly from San Jose to Denver, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Overall
8.0
Food
7.1
Comfort
7.8
Entertainment
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Food
7.1
Comfort
7.8
Entertainment
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Food
7.1
Comfort
7.8
Entertainment
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Food
7.1
Comfort
7.8
Entertainment
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Food
7.1
Comfort
7.8
Entertainment
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Food
7.1
Comfort
7.8
Entertainment
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
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.
Traveling to a place near San Jose?
Book flights to San Jose if you plan to visit one of these locationsWestminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Grand Lake
Broomfield
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Limon
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Alternative routes for San Jose to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from San Jose to Denver
Discover the top 4 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 June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$48 | Average$138 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$156 | Average$334 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$178 | Average$216 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$180 | Average$329 | FlexibilityNo cancel fee | On-time63% |