$154 Cheap Flights from Denver (DEN) to San Juan (SJU)

View $154 flight on Tue, May 20, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)

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Find available prices by choosing your travel dates.

Cheap Flights from Denver to San Juan (DEN-SJU)

Prices were available within the past 7 days and start at $154 for one-way flights and $303 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, May 10 - Sun, May 11
DEN
Denver
SJU
San Juan
$303 Roundtrip, just found
$303
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 10 from Denver to San Juan, returning Sun, May 11, priced at $303 just found
Frontier Airlines
Fri, May 2 - Tue, May 13
DEN
Denver
SJU
San Juan
$308 Roundtrip, just found
$308
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 2 from Denver to San Juan, returning Tue, May 13, priced at $308 just found
Frontier Airlines
Sat, May 10 - Sun, May 11
DEN
Denver
SJU
San Juan
$313 Roundtrip, just found
$313
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 10 from Denver to San Juan, returning Sun, May 11, priced at $313 just found
Frontier Airlines
Mon, May 5 - Sun, May 18
DEN
Denver
SJU
San Juan
$318 Roundtrip, found 6 hours ago
$318
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Mon, May 5 from Denver to San Juan, returning Sun, May 18, priced at $318 found 6 hours ago
Frontier Airlines
Sat, May 17 - Sat, May 24
DEN
Denver
SJU
San Juan
$325 Roundtrip, found 7 hours ago
$325
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, May 17 from Denver to San Juan, returning Sat, May 24, priced at $325 found 7 hours ago
Frontier Airlines
Mon, May 19 - Thu, May 29
DEN
Denver
SJU
San Juan
$328 Roundtrip, just found
$328
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, May 19 from Denver to San Juan, returning Thu, May 29, priced at $328 just found
JetBlue Airways
Thu, May 29 - Fri, May 30
DEN
Denver
SJU
San Juan
$332 Roundtrip, found 3 hours ago
$332
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Thu, May 29 from Denver to San Juan, returning Fri, May 30, priced at $332 found 3 hours ago
Sun Country Airlines
Fri, Oct 24 - Sat, Nov 1
DEN
Denver
SJU
San Juan
$407 Roundtrip, found 4 days ago
$407
Roundtrip
found 4 days ago
Select Sun Country Airlines flight, departing Fri, Oct 24 from Denver to San Juan, returning Sat, Nov 1, priced at $407 found 4 days ago
Delta
Tue, Jan 20 - Sat, Jan 24
DEN
Denver
SJU
San Juan
$415 Roundtrip, just found
$415
Roundtrip
just found
Select Delta flight, departing Tue, Jan 20 from Denver to San Juan, returning Sat, Jan 24, priced at $415 just found
Southwest Airlines
Tue, Jun 3 - Thu, Jun 5
DEN
Denver
SJU
San Juan
$416 Roundtrip, found 17 hours ago
$416
Roundtrip
found 17 hours ago
Select Southwest Airlines flight, departing Tue, Jun 3 from Denver to San Juan, returning Thu, Jun 5, priced at $416 found 17 hours ago

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU) cost?
You’ll find affordable return tickets from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU) starting from $486. Reserve your seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving DEN on May 19 2025 and touching down at SJU. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from DEN to SJU?
The cheapest flights from DEN to SJU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
Take a nonstop flight with United Airlines and journey straight from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU).
What is the cheapest airline that flies from DEN to SJU?
With prices starting from $303 for a one-way flight from DEN to SJU, United is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DEN on July 20 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
On average, you’ll only find 1 direct flight operating from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU) per day. If this doesn’t work for you, check out flights with layovers. Simply filter your search on Expedia to include one or more stops to discover the next best option.
What are the most popular departure times for flights from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
Flights between DEN and SJU are busiest at 9 AM. If you’d like a less crowded experience and potentially cheaper prices, choose a departure that’s outside typical rush times.
What day of the week has the most flights from DEN to SJU?
Travel on a Monday if you’re searching for the best selection of flights from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU).
What is the earliest flight from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
Hop on the earliest flight at around 9:46AM UTC-7, departing from Denver Intl. Airport (DEN). You’ll be flying for about 5h 39m, landing at Luis Munoz Marin Intl. Airport (SJU) at approximately 6:25PM UTC-4.
How long does it take to fly from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
It takes roughly 5 hours and 39 minutes to cover the 2,700 mi from DEN to SJU.
What is the best time to fly from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
To avoid potential delays on the Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Juan from Denver Intl. Airport (DEN)?
Luis Munoz Marin Intl. Airport (SJU) is the only airport in San Juan with direct flights from Denver Intl. Airport (DEN). Explore your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Waiting until right before your break to book a ticket from DEN to SJU often results in higher prices. While you may find some last-minute discounts, they aren’t always guaranteed. Be flexible with your itinerary for a better chance of getting a bargain.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
If you booked your DEN to SJU flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.
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