$120+ Cheap flights from Denver (DEN) to San Juan
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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SJU
Apr 9 — Apr 161
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 August or September, booked 3 days in advance, depart on a Tuesday or Thursday 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 March 10, 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 March 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1110:45 am
DEN
- SJU
1 stop12h 06m
Frontier
Wed 4/156:30 am
SJU
- DEN
1 stop18h 29m
Frontier
Deal found 3/5![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1911:59 pm
DEN
- SJU
1 stop22h 30m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Mon 4/208:00 am
DEN
- SJU
2 stops13h 43m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1612:02 pm
DEN
- SJU
1 stop9h 57m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1612:02 pm
DEN
- SJU
1 stop9h 57m
Frontier
Wed 4/221:59 am
SJU
- DEN
1 stop23h 10m
Frontier
Deal found 3/5![Frontier logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 4/2811:05 pm
DEN
- SJU
1 stop16h 54m
Frontier
Fri 5/83:08 am
SJU
- DEN
1 stop21h 51m
Frontier
Deal found 3/8![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1811:29 am
DEN
- SJU
2 stops12h 32m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/184:23 pm
DEN
- SJU
2 stops42h 10m
Frontier
Fri 4/2411:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:05 pm
DEN
- SJU
1 stop23h 53m
Multiple Airlines
Fri 5/13:08 am
SJU
- DEN
1 stop21h 51m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1811:59 pm
DEN
- SJU
1 stop17h 15m
Multiple Airlines
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 4/1811:59 pm
DEN
- SJU
1 stop24h 02m
Frontier
Wed 4/2211:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/6![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/2111:59 pm
DEN
- SJU
2 stops16h 00m
Frontier
Tue 4/2811:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$254
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 March 10, 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 March 10, 2026.
This Southwest deal was found by Cheapflights users on 3/8. 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.
Sat 4/118:40 am
DEN
- SJU
2 stops10h 45m
Southwest
Thu 4/162:00 pm
SJU
- DEN
2 stops11h 15m
Southwest
Deal found 3/8![Southwest logo]()
$472
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/2811:15 am
DEN
- SJU
1 stop8h 09m
United Airlines
Tue 5/51:40 pm
SJU
- DEN
Nonstop6h 35m
United Airlines
Deal found 3/5![United Airlines logo]()
$542
This Southwest deal was found by Cheapflights users on 3/6. 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 4/911:35 am
DEN
- SJU
2 stops10h 20m
Southwest
Wed 4/158:10 am
SJU
- DEN
2 stops11h 15m
Southwest
Deal found 3/6![Southwest logo]()
$527
This United Airlines deal was found by Cheapflights users on 3/6. 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 6/27:35 pm
DEN
- SJU
1 stop7h 54m
United Airlines
Tue 6/91:40 pm
SJU
- DEN
Nonstop6h 35m
United Airlines
Deal found 3/6![United Airlines logo]()
$578
This Southwest deal was found by Cheapflights users on 3/6. 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.
Sat 6/611:30 am
DEN
- SJU
2 stops10h 10m
Southwest
Sat 6/135:30 am
SJU
- DEN
2 stops9h 50m
Southwest
Deal found 3/6![Southwest logo]()
$556
This Southwest deal was found by Cheapflights users on 3/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:40 am
DEN
- SJU
2 stops10h 45m
Southwest
Sat 4/185:45 am
SJU
- DEN
2 stops10h 30m
Southwest
Deal found 3/9![Southwest logo]()
$556
This United Airlines deal was found by Cheapflights users on 3/6. 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 7/319:43 am
DEN
- SJU
Nonstop5h 55m
United Airlines
Fri 8/74:55 pm
SJU
- DEN
1 stop9h 35m
United Airlines
Deal found 3/6![United Airlines logo]()
$622
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Wed 4/157:45 am
DEN
- SJU
1 stop10h 53m
United Airlines
Wed 4/221:40 pm
SJU
- DEN
Nonstop6h 35m
United Airlines
Deal found 3/8![United Airlines logo]()
$632
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/259:43 am
DEN
- SJU
Nonstop5h 55m
United Airlines
Fri 5/17:00 am
SJU
- DEN
1 stop9h 26m
United Airlines
Deal found 3/8![United Airlines logo]()
$652
This Southwest deal was found by Cheapflights users on 3/8. 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.
Fri 4/1712:25 pm
DEN
- SJU
2 stops9h 30m
Southwest
Mon 4/202:00 pm
SJU
- DEN
2 stops11h 00m
Southwest
Deal found 3/8![Southwest logo]()
$674
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/119:43 am
DEN
- SJU
Nonstop5h 55m
United Airlines
Wed 4/151:25 pm
SJU
- DEN
1 stop10h 50m
United Airlines
Deal found 3/8![United Airlines logo]()
$657
This United Airlines deal was found by Cheapflights users on 3/6. 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 6/49:43 am
DEN
- SJU
Nonstop5h 55m
United Airlines
Mon 6/81:40 pm
SJU
- DEN
Nonstop6h 35m
United Airlines
Deal found 3/6![United Airlines logo]()
$670
Last-minute flights from Denver to San JuanDiscover last-minute flight deals from Denver to San Juan. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to San Juan. Data last updated March 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1111:59 pm
DEN
- SJU
1 stop10h 22m
Frontier
Mon 4/133:08 am
SJU
- DEN
1 stop13h 23m
Frontier
Deal found 3/5![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1612:02 pm
DEN
- SJU
1 stop9h 57m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1612:02 pm
DEN
- SJU
1 stop9h 57m
Frontier
Wed 4/221:59 am
SJU
- DEN
1 stop23h 10m
Frontier
Deal found 3/5![Frontier logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1811:29 am
DEN
- SJU
2 stops12h 32m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/184:23 pm
DEN
- SJU
2 stops42h 10m
Frontier
Fri 4/2411:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1811:59 pm
DEN
- SJU
1 stop17h 15m
Multiple Airlines
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 4/1811:59 pm
DEN
- SJU
1 stop24h 02m
Frontier
Wed 4/2211:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/6![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1911:59 pm
DEN
- SJU
1 stop22h 30m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Mon 4/208:00 am
DEN
- SJU
2 stops13h 43m
Frontier
Tue 4/2111:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/2111:59 pm
DEN
- SJU
2 stops16h 00m
Frontier
Tue 4/2811:30 am
SJU
- DEN
1 stop24h 10m
Frontier
Deal found 3/5![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:05 pm
DEN
- SJU
1 stop23h 53m
Multiple Airlines
Fri 5/13:08 am
SJU
- DEN
1 stop21h 51m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 4/2811:05 pm
DEN
- SJU
1 stop16h 54m
Frontier
Fri 5/83:08 am
SJU
- DEN
1 stop21h 51m
Frontier
Deal found 3/8![Frontier logo]()
$248
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 March 10, 2026.
Search for one-way flight options from Denver to San Juan. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This Frontier deal was found by Cheapflights users on 3/6. 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 3/3110:20 am
DEN
- SJU
1 stop12h 37m
Frontier
Deal found 3/6![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 5/211:05 pm
DEN
- SJU
1 stop25h 01m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$123
This Super.com deal was found by Cheapflights users on 3/5. 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 5/2711:49 pm
DEN
- SJU
1 stop21h 37m
Frontier
Deal found 3/5![Frontier logo]()
$124
This CheapOair deal was found by Cheapflights users on 3/10. 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 4/1411:05 pm
DEN
- SJU
1 stop16h 54m
Frontier
Deal found 3/10![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
Mon 4/611:59 pm
DEN
- SJU
1 stop17h 51m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$128
This Flightnetwork deal was found by Cheapflights users on 3/5. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:59 pm
DEN
- SJU
1 stop10h 51m
Frontier
Deal found 3/5![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/309:00 pm
DEN
- SJU
2 stops26h 19m
Frontier
Deal found 3/9![Frontier logo]()
$133
This Trip.com deal was found by Cheapflights users on 3/6. 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.
Tue 4/711:59 pm
DEN
- SJU
1 stop17h 51m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 3/2411:59 pm
DEN
- SJU
2 stops21h 59m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$135
This Trip.com deal was found by Cheapflights users on 3/8. 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.
Sat 3/2811:28 am
DEN
- SJU
1 stop10h 30m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$137
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 March 10, 2026.
Round-trip from | $242 (Kiwi.com) |
|---|---|
One-way from | $120 (Frontier) |
Popular in | December |
Cheapest in | August |
Average price | $508 |
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 2,558,603 searches. Data last updated March 10, 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 - SJU
DENSJU
Denver Intl
Sat 4/11
8:40 am-9:25 pm
2 stops10h 45m
San Juan Luis Munoz Marin Intl
Thu 4/16
2:00 pm-11:15 pm
2 stops11h 15m
$472
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Thu 4/9
11:35 am-11:55 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Wed 4/15
8:10 am-5:25 pm
2 stops11h 15m
$527
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Tue 4/28
11:15 am-9:24 pm
1 stop8h 09m
San Juan Luis Munoz Marin Intl
Tue 5/5
1:40 pm-6:15 pm
Nonstop6h 35m
$542
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Sat 6/6
11:30 am-11:40 pm
2 stops10h 10m
San Juan Luis Munoz Marin Intl
Sat 6/13
5:30 am-1:20 pm
2 stops9h 50m
$556
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Sat 4/11
8:40 am-9:25 pm
2 stops10h 45m
San Juan Luis Munoz Marin Intl
Sat 4/18
5:45 am-2:15 pm
2 stops10h 30m
$556
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Tue 6/2
7:35 pm-5:29 am
1 stop7h 54m
San Juan Luis Munoz Marin Intl
Tue 6/9
1:40 pm-6:15 pm
Nonstop6h 35m
$578
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Fri 7/31
9:43 am-5:38 pm
Nonstop5h 55m
San Juan Luis Munoz Marin Intl
Fri 8/7
4:55 pm-12:30 am
1 stop9h 35m
$622
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Wed 4/15
7:45 am-8:38 pm
1 stop10h 53m
San Juan Luis Munoz Marin Intl
Wed 4/22
1:40 pm-6:15 pm
Nonstop6h 35m
$632
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Sat 4/25
9:43 am-5:38 pm
Nonstop5h 55m
San Juan Luis Munoz Marin Intl
Fri 5/1
7:00 am-2:26 pm
1 stop9h 26m
$652
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Sat 4/11
9:43 am-5:38 pm
Nonstop5h 55m
San Juan Luis Munoz Marin Intl
Wed 4/15
1:25 pm-10:15 pm
1 stop10h 50m
$657
Showing 1-10 of 21 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
How far ahead should I book a flight from Denver to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from Denver to San Juan. Price data was last updated on March 6, 2026.
The best time to book flights from Denver to San Juan is 3 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.
What is the cheapest month to book a flight from Denver to San Juan?
Currently, January is the cheapest month in which you can book a flight from Denver to San Juan (average of $178). Flying from Denver to San Juan in December is currently the most expensive (average of $292). 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 March 10, 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.
Weekly flight availability from Denver to San Juan
Explore weekly flight availability from Denver to San Juan. 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 March 10, 2026.
The most flights from DEN to PR1 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 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 March 10, 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.
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from Denver to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Denver to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Denver to San Juan by cabin class
Find flights from Denver to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Denver and San Juan flights
Browse other Denver and San Juan flight options. Last updated on March 10, 2026.
Other flights from Denver
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on March 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$315 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$272 | Average$427 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$328 | Average$636 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$412 | Average$557 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$485 | Average$607 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$486 | Average$668 | FlexibilityNo cancel fee | On-time69% |