$94+ Cheap flights from Denver (DEN) to San Juan
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SJU
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from Denver to San Juan 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 Denver Intl to San Juan are usually found in April or September, booked 87 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from Denver to San Juan
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to San JuanExplore the most affordable flight options available from Denver to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from Denver to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:56 pm -
1 stop13h 53m
Sun 10/2511:54 am -
2 stops22h 12m
Deal found 9/16![Frontier logo]()
$368
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.
Sat 10/107:37 pm -
1 stop12h 42m
Tue 10/136:42 pm -
1 stop15h 25m
Deal found 9/17![Frontier logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 10/2810:43 am -
1 stop12h 16m
Sat 11/143:55 am -
1 stop31h 18m
Deal found 9/20![Frontier logo]()
$370
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:56 pm -
1 stop25h 42m
Sun 11/156:00 am -
1 stop29h 29m
Deal found 9/19![Frontier logo]()
$371
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:05 am -
2 stops18h 04m
Fri 11/612:59 am -
2 stops22h 01m
Deal found 9/20![Frontier logo]()
$372
This Frontier deal was found by Cheapflights users on 9/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:59 pm -
1 stop7h 41m
Thu 12/33:59 pm -
1 stop8h 31m
Deal found 9/20![Frontier logo]()
$373
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:56 pm -
1 stop15h 39m
Sat 11/147:11 pm -
1 stop16h 13m
Deal found 9/19![Frontier logo]()
$374
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:16 pm -
2 stops19h 02m
Fri 10/1612:59 am -
2 stops14h 48m
Deal found 9/18![Frontier logo]()
$375
This Cheapflightsfares deal was found by Cheapflights users on 9/18. 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.
Thu 10/157:02 pm -
1 stop28h 51m
Sat 10/1712:59 am -
1 stop9h 01m
Deal found 9/18![Frontier logo]()
$376
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:05 pm -
2 stops18h 13m
Tue 10/208:45 am -
2 stops25h 21m
Deal found 9/18![Frontier logo]()
$377
This Frontier deal was found by Cheapflights users on 9/18. 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.
Thu 11/269:31 am -
1 stop13h 05m
Mon 12/73:43 am -
1 stop9h 06m
Deal found 9/18![Frontier logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/67:12 pm -
1 stop12h 23m
Tue 10/2012:59 am -
1 stop9h 01m
Deal found 9/18![Frontier logo]()
$379
Best flights from Denver to San JuanDiscover carefully curated flight deals from Denver to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from Denver to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/312:10 pm -
2 stops9h 40m
Sat 12/56:45 am -
2 stops11h 40m
Deal found 9/16![Southwest logo]()
$547
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:46 am -
Nonstop5h 39m
Mon 12/72:21 pm -
Nonstop6h 46m
Deal found 9/16![United Airlines logo]()
$587
This United Airlines deal was found by Cheapflights users on 9/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:46 am -
Nonstop5h 39m
Wed 12/94:55 pm -
1 stop9h 19m
Deal found 9/19![United Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:46 am -
Nonstop5h 39m
Sat 11/72:21 pm -
Nonstop6h 46m
Deal found 9/20![United Airlines logo]()
$607
This Southwest deal was found by Cheapflights users on 9/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:20 am -
2 stops10h 35m
Fri 11/275:35 am -
2 stops10h 40m
Deal found 9/19![Southwest logo]()
$791
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:46 am -
Nonstop5h 39m
Tue 12/82:21 pm -
Nonstop6h 46m
Deal found 9/16![United Airlines logo]()
$717
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 10/189:46 am -
Nonstop5h 52m
Mon 10/261:21 pm -
Nonstop6h 46m
Deal found 9/18![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Mon 10/269:46 am -
Nonstop5h 39m
Thu 11/262:21 pm -
Nonstop6h 46m
Deal found 9/18![United Airlines logo]()
$727
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:29 pm -
2 stops15h 16m
Fri 10/234:55 pm -
2 stops15h 44m
Deal found 9/20![United Airlines logo]()
$735
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:46 am -
Nonstop5h 39m
Mon 11/162:21 pm -
Nonstop6h 46m
Deal found 9/16![United Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/289:46 am -
Nonstop5h 39m
Tue 12/82:21 pm -
Nonstop6h 46m
Deal found 9/20![United Airlines logo]()
$792
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
1 stop12h 00m
Tue 12/12:21 pm -
Nonstop6h 46m
Deal found 9/20![United Airlines logo]()
$807
Last-minute flights from Denver to San JuanDiscover last-minute flight deals from Denver to San Juan. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to San Juan. Data last updated September 21, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/67:12 pm -
1 stop12h 23m
Tue 10/2012:59 am -
1 stop9h 01m
Deal found 9/18![Frontier logo]()
$379
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:05 pm -
2 stops18h 13m
Tue 10/208:45 am -
2 stops25h 21m
Deal found 9/18![Frontier logo]()
$377
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.
Sat 10/107:37 pm -
1 stop12h 42m
Tue 10/136:42 pm -
1 stop15h 25m
Deal found 9/17![Frontier logo]()
$369
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:16 pm -
2 stops19h 02m
Fri 10/1612:59 am -
2 stops14h 48m
Deal found 9/18![Frontier logo]()
$375
This Cheapflightsfares deal was found by Cheapflights users on 9/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:56 pm -
1 stop29h 13m
Sat 10/1712:59 am -
1 stop9h 01m
Deal found 9/20![Frontier logo]()
$371
This Cheapflightsfares deal was found by Cheapflights users on 9/18. 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.
Thu 10/157:02 pm -
1 stop28h 51m
Sat 10/1712:59 am -
1 stop9h 01m
Deal found 9/18![Frontier logo]()
$376
This Super.com deal was found by Cheapflights users on 9/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:02 pm -
1 stop12h 16m
Sat 10/2412:59 am -
1 stop9h 01m
Deal found 9/20![Frontier logo]()
$378
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:56 pm -
1 stop13h 53m
Sun 10/2511:54 am -
2 stops22h 12m
Deal found 9/16![Frontier logo]()
$368
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Sat 10/246:05 am -
2 stops18h 04m
Fri 11/612:59 am -
2 stops22h 01m
Deal found 9/20![Frontier logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 10/2810:43 am -
1 stop12h 16m
Sat 11/143:55 am -
1 stop31h 18m
Deal found 9/20![Frontier logo]()
$370
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:56 pm -
1 stop15h 39m
Sat 11/147:11 pm -
1 stop16h 13m
Deal found 9/19![Frontier logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Thu 10/294:14 pm -
2 stops30h 45m
Sat 11/77:26 pm -
1 stop15h 47m
Deal found 9/20![Frontier logo]()
$373
One-way flights from Denver to San JuanSearch for one-way flight options from Denver to San Juan. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from Denver to San Juan. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:43 am -
1 stop12h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$94
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:56 pm -
1 stop13h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$121
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:56 pm -
1 stop13h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$131
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.
Wed 10/216:56 pm -
1 stop13h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$134
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:56 pm -
1 stop13h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$141
This Trip.com deal was found by Cheapflights users on 9/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:12 pm -
2 stops16h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$151
Find flight deals from Denver to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to San Juan (PR1). 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 21, 2026.
Round-trip from | $368 (Mytrip) |
|---|---|
One-way from | $94 (Super.com) |
Popular in | December |
Cheapest in | April |
Average price | $454 |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to San Juan 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 7,457,451 searches. Data last updated September 21, 2026.
Use the filters below to find and compare flights from Denver to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Thu 10/22
9:12 pm-4:06 pm
2 stops40h 54m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$157
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Sun 10/18
7:02 pm-9:18 am
1 stop12h 16m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$188
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Thu 10/22
9:46 am-5:38 pm
Nonstop5h 52m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$359
Quickest round-trip
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Fri 11/6
9:46 am-6:25 pm
Nonstop5h 39m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$379
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Wed 12/2
9:46 am-6:25 pm
Nonstop5h 39m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$424
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Wed 10/21
9:46 am-5:38 pm
Nonstop5h 52m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$424
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Wed 10/28
9:46 am-5:25 pm
Nonstop5h 39m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$424
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Sun 11/1
6:00 am-10:22 pm
2 stops13h 22m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$428
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Thu 11/19
9:46 am-6:25 pm
Nonstop5h 39m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$449
DenverSan Juan
DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl
DENSJU
Denver Intl
Sat 11/28
9:46 am-6:25 pm
Nonstop5h 39m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$469
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Denver to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Denver with our price prediction graph.
DEN-PR1
DEN-SJU
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 Denver to San Juan
DEN-PR1
DEN-SJU
What is the cheapest month to book a flight from Denver to San Juan?
Currently, April is the cheapest month in which you can book a flight from Denver to San Juan (average of $435). Flying from Denver to San Juan in December is currently the most expensive (average of $675). 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 DEN to SJU?
Find hourly flight availability from Denver to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 21, 2026.
When flying from Denver to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Denver to San Juan?
Airfare is below average for this route at the moment.
Denver to San Juan flights typically cost between $370 and $622 in October.The cheapest round-trip price found within the last 5 days was $368 on Frontier (Oct 22-Oct 25).
How far ahead should I book a flight from Denver to San Juan?
The best time to book flights from Denver to San Juan is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. 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 Juan. Reviews last updated September 21, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andJetBlue from Denver to San Juan. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Crew
8.6
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Crew
8.6
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Crew
8.6
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Crew
8.6
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Crew
8.6
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
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Top 6 airlines flying from Denver to San Juan
Discover the top 6 airlines that operate flights from Denver to San Juan. 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 7,457,451 searches. Data last updated September 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$184 | Average$386 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$271 | Average$449 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$353 | Average$691 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$376 | Average$528 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$485 | Average$661 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$490 | Average$703 | FlexibilityNo cancel fee | On-time69% |