$177+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SJU
Jul 9 — Jul 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 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 June 9, 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 June 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/58:55 am
DEN
- SJU
1 stop13h 46m
Frontier
Tue 8/117:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/4![Frontier logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/58:55 am
DEN
- SJU
1 stop13h 46m
Frontier
Wed 8/127:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/4![Frontier logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/58:55 am
DEN
- SJU
1 stop13h 46m
Frontier
Fri 8/145:22 pm
SJU
- DEN
1 stop23h 23m
Frontier
Deal found 6/4![Frontier logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/49:58 am
DEN
- SJU
2 stops25h 43m
Frontier
Tue 8/117:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/4![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/611:59 pm
DEN
- SJU
1 stop22h 42m
Frontier
Tue 8/117:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/4![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/49:58 am
DEN
- SJU
2 stops25h 43m
Frontier
Wed 8/127:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/4![Frontier logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/175:05 pm
DEN
- SJU
1 stop11h 21m
Frontier
Mon 8/316:41 pm
SJU
- DEN
1 stop15h 56m
Frontier
Deal found 6/5![Frontier logo]()
$353
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:40 pm
DEN
- SJU
2 stops22h 43m
Frontier
Mon 8/107:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/9![Frontier logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/255:15 pm
DEN
- SJU
1 stop11h 11m
Multiple Airlines
Sun 8/306:00 am
SJU
- DEN
2 stops34h 30m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$372
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:05 am
DEN
- SJU
1 stop15h 53m
Frontier
Tue 8/117:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/9![Frontier logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/611:59 pm
DEN
- SJU
1 stop22h 42m
Multiple Airlines
Sat 8/156:00 am
SJU
- DEN
2 stops28h 21m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$375
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 June 9, 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 June 9, 2026.
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3110:15 am
DEN
- SJU
1 stop12h 20m
Southwest
Tue 8/410:30 am
SJU
- DEN
2 stops11h 20m
Southwest
Deal found 6/5![Southwest logo]()
$440
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Tue 7/149:43 am
DEN
- SJU
Nonstop5h 55m
United Airlines
Tue 7/281:40 pm
SJU
- DEN
Nonstop6h 35m
United Airlines
Deal found 6/8![United Airlines logo]()
$587
This Southwest deal was found by Cheapflights users on 6/6. 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.
Sun 9/611:15 am
DEN
- SJU
2 stops9h 55m
Southwest
Tue 9/158:20 am
SJU
- DEN
2 stops9h 00m
Southwest
Deal found 6/6![Southwest logo]()
$508
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/219:43 am
DEN
- SJU
Nonstop5h 55m
United Airlines
Tue 8/44:55 pm
SJU
- DEN
1 stop9h 35m
United Airlines
Deal found 6/6![United Airlines logo]()
$592
This Southwest deal was found by Cheapflights users on 6/4. 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 6/3011:15 am
DEN
- SJU
2 stops9h 30m
Southwest
Sat 7/46:00 am
SJU
- DEN
2 stops8h 45m
Southwest
Deal found 6/4![Southwest logo]()
$586
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Mon 8/39:43 am
DEN
- SJU
Nonstop5h 55m
United Airlines
Wed 8/123:56 pm
SJU
- DEN
1 stop9h 57m
United Airlines
Deal found 6/5![United Airlines logo]()
$592
This Southwest deal was found by Cheapflights users on 6/8. 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.
Tue 7/2111:15 am
DEN
- SJU
2 stops9h 35m
Southwest
Mon 7/276:00 am
SJU
- DEN
2 stops9h 25m
Southwest
Deal found 6/8![Southwest logo]()
$630
This United Airlines deal was found by Cheapflights users on 6/7. 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 8/258:29 pm
DEN
- SJU
1 stop16h 15m
United Airlines
Wed 8/264:55 pm
SJU
- DEN
2 stops15h 44m
United Airlines
Deal found 6/7![United Airlines logo]()
$649
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1310:00 am
DEN
- SJU
2 stops11h 40m
Southwest
Sun 7/196:05 am
SJU
- DEN
2 stops9h 05m
Southwest
Deal found 6/5![Southwest logo]()
$646
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:59 pm
DEN
- SJU
1 stop10h 05m
United Airlines
Wed 7/221:40 pm
SJU
- DEN
Nonstop6h 35m
United Airlines
Deal found 6/9![United Airlines logo]()
$668
Last-minute flights from Denver to San JuanDiscover last-minute flight deals from Denver to San Juan. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to San Juan. Data last updated June 9, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 6/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:05 am
DEN
- SJU
1 stop15h 53m
Frontier
Wed 7/83:36 pm
SJU
- DEN
1 stop10h 12m
Frontier
Deal found 6/5![Frontier logo]()
$385
This CheapOair deal was found by Cheapflights users on 6/4. 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 7/811:59 pm
DEN
- SJU
1 stop22h 42m
Frontier
Tue 7/146:44 am
SJU
- DEN
1 stop10h 14m
Frontier
Deal found 6/4![Frontier logo]()
$398
This Trip.com deal was found by Cheapflights users on 6/6. 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 7/145:05 pm
DEN
- SJU
1 stop11h 39m
Frontier
Tue 7/217:30 am
SJU
- DEN
1 stop26h 53m
Frontier
Deal found 6/6![Frontier logo]()
$393
This Trip.com deal was found by Cheapflights users on 6/6. 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 7/216:03 am
DEN
- SJU
1 stop16h 04m
Frontier
Tue 8/43:36 pm
SJU
- DEN
1 stop24h 43m
Frontier
Deal found 6/6![Frontier logo]()
$392
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:05 am
DEN
- SJU
1 stop15h 53m
Frontier
Mon 8/107:10 am
SJU
- DEN
1 stop27h 10m
Frontier
Deal found 6/9![Frontier logo]()
$373
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:05 am
DEN
- SJU
1 stop15h 53m
Frontier
Tue 8/116:00 am
SJU
- DEN
2 stops26h 28m
Frontier
Deal found 6/9![Frontier logo]()
$378
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:05 am
DEN
- SJU
1 stop15h 53m
Frontier
Tue 8/46:26 pm
SJU
- DEN
1 stop15h 41m
Frontier
Deal found 6/9![Frontier logo]()
$389
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:05 am
DEN
- SJU
1 stop15h 53m
Frontier
Wed 8/58:37 pm
SJU
- DEN
1 stop13h 30m
Frontier
Deal found 6/9![Frontier logo]()
$390
This Frontier deal was found by Cheapflights users on 6/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:55 am
DEN
- SJU
1 stop13h 46m
Frontier
Tue 8/1112:13 pm
SJU
- DEN
1 stop12h 47m
Frontier
Deal found 6/5![Frontier logo]()
$376
This Frontier deal was found by Cheapflights users on 6/7. 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 7/298:55 am
DEN
- SJU
1 stop13h 46m
Frontier
Fri 8/78:37 pm
SJU
- DEN
1 stop13h 30m
Frontier
Deal found 6/7![Frontier logo]()
$396
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:01 am
DEN
- SJU
2 stops50h 59m
Multiple Airlines
Mon 8/107:10 am
SJU
- DEN
1 stop27h 10m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$394
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 June 9, 2026.
Search for one-way flight options from Denver to San Juan. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/611:59 pm
DEN
- SJU
1 stop22h 42m
Frontier
Deal found 6/5![Frontier logo]()
$177
This Super.com deal was found by Cheapflights users on 6/7. 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 7/76:05 am
DEN
- SJU
1 stop18h 54m
Frontier
Deal found 6/7![Frontier logo]()
$186
This Priceline deal was found by Cheapflights users on 6/7. 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.
Tue 7/145:05 pm
DEN
- SJU
1 stop11h 39m
Frontier
Deal found 6/7![Frontier logo]()
$188
This CheapOair deal was found by Cheapflights users on 6/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:03 am
DEN
- SJU
1 stop16h 04m
Frontier
Deal found 6/6![Frontier logo]()
$193
This Booking.com deal was found by Cheapflights users on 6/7. 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.
Wed 7/2211:40 pm
DEN
- SJU
1 stop22h 48m
Frontier
Deal found 6/7![Frontier logo]()
$198
This Super.com deal was found by Cheapflights users on 6/4. 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.
Thu 7/26:00 am
DEN
- SJU
1 stop16h 37m
Frontier
Deal found 6/4![Frontier logo]()
$205
This Super.com deal was found by Cheapflights users on 6/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:05 pm
DEN
- SJU
1 stop11h 39m
Frontier
Deal found 6/8![Frontier logo]()
$206
This Super.com deal was found by Cheapflights users on 6/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:00 am
DEN
- SJU
1 stop16h 41m
Frontier
Deal found 6/8![Frontier logo]()
$207
This Travelocity deal was found by Cheapflights users on 6/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:00 am
DEN
- SJU
1 stop16h 37m
Frontier
Deal found 6/8![Frontier logo]()
$208
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 June 9, 2026.
Round-trip from | $318 (Kiwi.com) |
|---|---|
One-way from | $177 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $596 |
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 June 9, 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
Fri 7/31
10:15 am-12:35 am
1 stop12h 20m
San Juan Luis Munoz Marin Intl
Tue 8/4
10:30 am-7:50 pm
2 stops11h 20m
$440
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Sun 9/6
11:15 am-11:10 pm
2 stops9h 55m
San Juan Luis Munoz Marin Intl
Tue 9/15
8:20 am-3:20 pm
2 stops9h 00m
$508
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Tue 6/30
11:15 am-10:45 pm
2 stops9h 30m
San Juan Luis Munoz Marin Intl
Sat 7/4
6:00 am-12:45 pm
2 stops8h 45m
$586
Quickest round-trip
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Tue 7/14
9:43 am-5:38 pm
Nonstop5h 55m
San Juan Luis Munoz Marin Intl
Tue 7/28
1:40 pm-6:15 pm
Nonstop6h 35m
$587
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Tue 7/21
9:43 am-5:38 pm
Nonstop5h 55m
San Juan Luis Munoz Marin Intl
Tue 8/4
4:55 pm-12:30 am
1 stop9h 35m
$592
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Mon 8/3
9:43 am-5:38 pm
Nonstop5h 55m
San Juan Luis Munoz Marin Intl
Wed 8/12
3:56 pm-11:53 pm
1 stop9h 57m
$592
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Tue 7/21
11:15 am-10:50 pm
2 stops9h 35m
San Juan Luis Munoz Marin Intl
Mon 7/27
6:00 am-1:25 pm
2 stops9h 25m
$630
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Mon 7/13
10:00 am-11:40 pm
2 stops11h 40m
San Juan Luis Munoz Marin Intl
Sun 7/19
6:05 am-1:10 pm
2 stops9h 05m
$646
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Tue 8/25
8:29 pm-2:44 pm
1 stop16h 15m
San Juan Luis Munoz Marin Intl
Wed 8/26
4:55 pm-6:39 am
2 stops15h 44m
$649
DenverSan Juan
DEN - SJU
DENSJU
Denver Intl
Thu 7/16
11:59 pm-12:04 pm
1 stop10h 05m
San Juan Luis Munoz Marin Intl
Wed 7/22
1:40 pm-6:15 pm
Nonstop6h 35m
$668
Showing 1-10 of 19 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, December is the cheapest month in which you can book a flight from Denver to San Juan (average of $139). Flying from Denver to San Juan in March is currently the most expensive (average of $1,715). 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 June 9, 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 June 9, 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).
How much does it cost to fly round-trip from Denver to San Juan?
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 June 9, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines 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.
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
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Complete your trip
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Denver and San Juan flights
Browse other Denver and San Juan flight options. Last updated on June 9, 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 June 9, 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 June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$183 | Average$330 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$272 | Average$438 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$353 | Average$691 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$388 | Average$544 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$485 | Average$635 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$487 | Average$692 | FlexibilityNo cancel fee | On-time69% |