$104+ Cheap flights from San Juan to Denver (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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Feb 13 — Feb 201
1 adult, Economy
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Find cheap flights from San Juan 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 Juan to Denver Intl are usually found in February or March, booked 63 days in advance, depart on a Thursday or Wednesday and return on a Tuesday
Cheap flight deals from San Juan to Denver
Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) 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 January 14, 2026.
Round-trip from | $202 (CheapOair) |
|---|---|
One-way from | $104 (Kiwi.com) |
Popular in | May |
Cheapest in | February |
Average price | $521 |
Find flight deals from San Juan to Denver
Cheapest flights from San Juan to DenverExplore the most affordable flight options available from San Juan to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.
Explore the most affordable flight options available from San Juan to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Tue 2/38:00 am
SJU
- DEN
1 stop12h 36m
Frontier
Sat 2/76:32 pm
DEN
- SJU
1 stop15h 50m
Frontier
Deal found 1/14![Frontier logo]()
$201
This CheapOair deal was found by Cheapflights users on 1/13. 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.
Mon 2/237:09 pm
SJU
- DEN
1 stop21h 57m
Frontier
Thu 3/510:44 am
DEN
- SJU
1 stop10h 57m
Frontier
Deal found 1/13![Frontier logo]()
$202
This Frontier deal was found by Cheapflights users on 1/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/38:00 am
SJU
- DEN
1 stop12h 36m
Frontier
Mon 2/912:59 am
DEN
- SJU
1 stop11h 07m
Frontier
Deal found 1/14![Frontier logo]()
$203
This CheapOair deal was found by Cheapflights users on 1/13. 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.
Tue 2/173:53 am
SJU
- DEN
1 stop22h 06m
Frontier
Mon 2/2311:59 pm
DEN
- SJU
1 stop21h 44m
Frontier
Deal found 1/13![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/288:00 am
SJU
- DEN
1 stop12h 36m
Frontier
Sun 2/11:28 pm
DEN
- SJU
1 stop8h 40m
Frontier
Deal found 1/12![Frontier logo]()
$207
This Frontier deal was found by Cheapflights users on 1/13. 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.
Tue 3/3112:05 pm
SJU
- DEN
1 stop13h 08m
Frontier
Tue 4/711:59 pm
DEN
- SJU
1 stop13h 00m
Frontier
Deal found 1/13![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
Sun 2/226:00 am
SJU
- DEN
1 stop18h 48m
Frontier
Wed 2/2511:25 pm
DEN
- SJU
1 stop10h 14m
Frontier
Deal found 1/13![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 1/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3011:34 am
SJU
- DEN
1 stop9h 02m
Frontier
Sat 2/71:28 pm
DEN
- SJU
1 stop7h 31m
Frontier
Deal found 1/14![Frontier logo]()
$213
This Frontier deal was found by Cheapflights users on 1/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:00 am
SJU
- DEN
1 stop12h 36m
Frontier
Fri 2/61:28 pm
DEN
- SJU
1 stop7h 31m
Frontier
Deal found 1/14![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 2/134:17 pm
SJU
- DEN
1 stop27h 05m
Frontier
Sun 2/2211:25 pm
DEN
- SJU
1 stop10h 14m
Frontier
Deal found 1/13![Frontier logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 2/197:54 pm
SJU
- DEN
1 stop16h 17m
Frontier
Sun 2/2210:00 am
DEN
- SJU
1 stop13h 29m
Frontier
Deal found 1/13![Frontier logo]()
$219
Cheapflights Fare Finder
Customize your flight search to find flights from San Juan 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 January 14, 2026.
Use the filters below to find and compare flights from San Juan to Denver that are best for you.
Fly from
San Juan
Fly to
Denver
Route
Depart
Return
Price
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Thu 2/12
6:30 am-5:30 pm
2 stops14h 00m
Denver Intl
Tue 2/17
6:25 am-7:20 pm
2 stops9h 55m
$448
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Thu 2/12
6:30 am-5:30 pm
2 stops14h 00m
Denver Intl
Sun 2/15
10:40 am-12:05 am
2 stops10h 25m
$450
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Wed 2/11
5:40 am-1:50 pm
2 stops11h 10m
Denver Intl
Sun 2/15
10:40 am-12:05 am
2 stops10h 25m
$462
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Mon 2/23
2:05 am-10:05 am
1 stop11h 00m
Denver Intl
Tue 3/3
9:45 am-6:25 pm
Nonstop5h 40m
$492
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Thu 2/26
5:50 pm-12:30 am
1 stop9h 40m
Denver Intl
Mon 3/2
9:45 am-6:25 pm
Nonstop5h 40m
$492
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Fri 2/13
7:00 am-2:20 pm
2 stops10h 20m
Denver Intl
Sun 2/15
10:40 am-12:05 am
2 stops10h 25m
$516
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Mon 2/9
6:10 am-3:30 pm
2 stops12h 20m
Denver Intl
Fri 2/13
9:55 pm-5:15 pm
2 stops16h 20m
$536
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Tue 2/10
2:25 pm-6:12 pm
Nonstop6h 47m
Denver Intl
Tue 2/17
7:45 am-9:26 pm
1 stop10h 41m
$568
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Wed 3/4
2:25 pm-6:12 pm
Nonstop6h 47m
Denver Intl
Sun 3/8
9:45 am-5:25 pm
Nonstop5h 40m
$577
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Thu 3/12
6:33 am-11:59 pm
2 stops43h 26m
Denver Intl
Mon 3/16
6:45 pm-10:31 pm
2 stops25h 46m
$580
Showing 1-10 of 22 results
Best time to book a flight from San Juan to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from San Juan 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 Juan to Denver
How far ahead should I book a flight from San Juan to Denver?
Use this chart to determine the optimal time to book a round-trip flight from San Juan to Denver. Price data was last updated on January 9, 2026.
To ensure you get the cheapest price possible for a flight from San Juan to Denver, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Juan to Denver?
Currently, March is the cheapest month in which you can book a flight from San Juan to Denver (average of $129). Flying from San Juan to Denver in May is currently the most expensive (average of $300). 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 SJU to DEN?
Find hourly flight availability from San Juan 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 January 14, 2026.
When flying from San Juan to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from San Juan to Denver
Explore weekly flight availability from San Juan 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 January 14, 2026.
The most flights from PR1 to DEN are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
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 January 14, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Juan to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from San Juan 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 Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Greeley
Lone Tree
Wheat Ridge
Cripple Creek
Winter Park
Silverthorne
Central City
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Manitou Springs
Frisco
Fort Morgan
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Alternative routes for San Juan to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from San Juan to Denver
Discover the top 6 airlines that operate flights from San Juan 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 January 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$150 | Average$295 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$585 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$437 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$308 | Average$555 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$411 | Average$562 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$486 | Average$661 | FlexibilityNo cancel fee | On-time69% |