$111+ 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Feb 21 — Feb 281
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 79 days in advance, depart on a Thursday or Wednesday and return on a Tuesday
Cheap 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 22, 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 22, 2026.
This CheapOair deal was found by Cheapflights users on 1/21. 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 2/236:00 am
SJU
- DEN
1 stop29h 21m
Frontier
Thu 3/57:24 pm
DEN
- SJU
1 stop28h 34m
Frontier
Deal found 1/21![Frontier logo]()
$201
This Priceline deal was found by Cheapflights users on 1/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:07 am
SJU
- DEN
1 stop14h 52m
Frontier
Wed 2/256:20 pm
DEN
- SJU
1 stop12h 34m
Frontier
Deal found 1/21![Frontier logo]()
$203
This CheapOair deal was found by Cheapflights users on 1/19. 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 stop17h 24m
Frontier
Mon 2/2311:59 pm
DEN
- SJU
1 stop23h 54m
Frontier
Deal found 1/19![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Sat 2/78:00 am
SJU
- DEN
1 stop27h 30m
Frontier
Tue 2/1011:59 pm
DEN
- SJU
1 stop23h 54m
Frontier
Deal found 1/19![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Sat 2/78:00 am
SJU
- DEN
1 stop27h 30m
Frontier
Sat 2/1411:25 pm
DEN
- SJU
1 stop24h 04m
Frontier
Deal found 1/19![Frontier logo]()
$206
This CheapOair deal was found by Cheapflights users on 1/22. 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 2/127:04 pm
SJU
- DEN
1 stop27h 55m
Frontier
Mon 2/1611:59 pm
DEN
- SJU
1 stop23h 49m
Frontier
Deal found 1/22![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/48:00 am
SJU
- DEN
1 stop12h 36m
Frontier
Sun 2/81:28 pm
DEN
- SJU
1 stop8h 40m
Frontier
Deal found 1/20![Frontier logo]()
$214
This Booking.com deal was found by Cheapflights users on 1/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/217:54 pm
SJU
- DEN
1 stop25h 26m
Frontier
Sat 2/2811:59 pm
DEN
- SJU
1 stop21h 55m
Frontier
Deal found 1/20![Frontier logo]()
$216
This Priceline deal was found by Cheapflights users on 1/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/64:36 pm
SJU
- DEN
1 stop20h 24m
Frontier
Mon 2/99:41 am
DEN
- SJU
1 stop11h 18m
Frontier
Deal found 1/20![Frontier logo]()
$217
This CheapOair deal was found by Cheapflights users on 1/20. 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 3/26:00 am
SJU
- DEN
1 stop30h 11m
Frontier
Mon 3/912:28 am
DEN
- SJU
1 stop8h 42m
Frontier
Deal found 1/20![Frontier logo]()
$219
Find 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 22, 2026.
Round-trip from | $201 (CheapOair) |
|---|---|
One-way from | $111 (Kiwi.com) |
Popular in | May |
Cheapest in | February |
Average price | $521 |
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 22, 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
Sat 2/14
7:54 pm-7:55 am
1 stop15h 01m
Denver Intl
Tue 2/17
12:59 am-12:43 am
2 stops20h 44m
$229
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Tue 5/5
11:59 pm-10:15 am
1 stop12h 16m
Denver Intl
Sun 5/10
11:08 pm-12:00 pm
1 stop10h 52m
$345
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Mon 2/23
6:00 am-11:56 am
2 stops32h 56m
Denver Intl
Sat 2/28
9:00 pm-2:09 am
2 stops26h 09m
$375
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Tue 5/5
3:45 pm-10:05 pm
1 stop8h 20m
Denver Intl
Mon 5/18
11:35 am-11:40 pm
2 stops10h 05m
$388
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Sat 5/23
1:50 pm-11:01 pm
1 stop11h 11m
Denver Intl
Tue 5/26
10:34 pm-12:01 pm
1 stop11h 27m
$468
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Wed 5/20
3:00 pm-11:01 pm
1 stop10h 01m
Denver Intl
Mon 5/25
10:34 pm-12:01 pm
1 stop11h 27m
$468
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Fri 2/13
10:50 am-5:40 pm
2 stops9h 50m
Denver Intl
Mon 2/16
9:00 pm-10:30 am
2 stops10h 30m
$488
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Sat 5/23
3:00 pm-11:01 pm
1 stop10h 01m
Denver Intl
Sat 5/30
11:05 am-1:59 am
1 stop12h 54m
$488
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Thu 2/19
2:25 pm-6:12 pm
Nonstop6h 47m
Denver Intl
Wed 2/25
9:45 am-6:25 pm
Nonstop5h 40m
$507
San JuanDenver
SJU - DEN
SJUDEN
San Juan Luis Munoz Marin Intl
Sat 5/23
1:50 pm-11:01 pm
1 stop11h 11m
Denver Intl
Sun 5/31
10:34 pm-12:01 pm
1 stop11h 27m
$511
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 16, 2026.
To ensure you get the cheapest price possible for a flight from San Juan to Denver, you should look to book at least 79 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 $130). 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 22, 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 22, 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).
How much does it cost to fly round-trip from San Juan to Denver?
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 22, 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.
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
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
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Broomfield
Westminster
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Greeley
Lone Tree
Centennial
Wheat Ridge
Cripple Creek
Winter Park
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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 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$142 | Average$296 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$195 | Average$437 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$585 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$308 | Average$555 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$411 | Average$555 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$486 | Average$665 | FlexibilityNo cancel fee | On-time69% |