$143 Cheap Flights from Denver (DEN) to San Juan (SJU)

View $143 flight on Sat, Jan 10, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $143 for one-way flights and $222 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Feb 8 - Thu, Feb 19
DEN
Denver
SJU
San Juan
$222 Roundtrip, found 10 hours ago
$222
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Sun, Feb 8 from Denver to San Juan, returning Thu, Feb 19, priced at $222 found 10 hours ago
Frontier Airlines
Sun, Jan 11 - Sun, Jan 25
DEN
Denver
SJU
San Juan
$235 Roundtrip, found 1 day ago
$235
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Jan 11 from Denver to San Juan, returning Sun, Jan 25, priced at $235 found 1 day ago
Frontier Airlines
Tue, Jan 13 - Thu, Jan 15
DEN
Denver
SJU
San Juan
$239 Roundtrip, found 2 hours ago
$239
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Jan 13 from Denver to San Juan, returning Thu, Jan 15, priced at $239 found 2 hours ago
Frontier Airlines
Mon, Jan 12 - Thu, Jan 15
DEN
Denver
SJU
San Juan
$241 Roundtrip, just found
$241
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Jan 12 from Denver to San Juan, returning Thu, Jan 15, priced at $241 just found
Frontier Airlines
Tue, Jan 13 - Thu, Jan 22
DEN
Denver
SJU
San Juan
$241 Roundtrip, found 10 hours ago
$241
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Tue, Jan 13 from Denver to San Juan, returning Thu, Jan 22, priced at $241 found 10 hours ago
Frontier Airlines
Fri, Nov 14 - Thu, Nov 20
DEN
Denver
SJU
San Juan
$243 Roundtrip, found 16 hours ago
$243
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Fri, Nov 14 from Denver to San Juan, returning Thu, Nov 20, priced at $243 found 16 hours ago
JetBlue Airways
Tue, Nov 11 - Sat, Nov 22
DEN
Denver
SJU
San Juan
$315 Roundtrip, found 2 days ago
$315
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Nov 11 from Denver to San Juan, returning Sat, Nov 22, priced at $315 found 2 days ago
Southwest Airlines
Mon, Jan 12 - Tue, Jan 13
DEN
Denver
SJU
San Juan
$360 Roundtrip, found 4 hours ago
$360
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Mon, Jan 12 from Denver to San Juan, returning Tue, Jan 13, priced at $360 found 4 hours ago
American Airlines
Fri, Apr 24 - Mon, Apr 27
DEN
Denver
SJU
San Juan
$485 Roundtrip, just found
$485
Roundtrip
just found
Select American Airlines flight, departing Fri, Apr 24 from Denver to San Juan, returning Mon, Apr 27, priced at $485 just found
United
Wed, Mar 11 - Wed, Mar 18
DEN
Denver
SJU
San Juan
$486 Roundtrip, found 4 hours ago
$486
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Mar 11 from Denver to San Juan, returning Wed, Mar 18, priced at $486 found 4 hours ago

Find the cheapest month to fly from Denver (DEN) to San Juan (SJU)

January is typically the cheapest month to fly

From $138 - $493 per traveler.

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $376
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $376

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU) cost?
Grab a cheap one-way flight from $143 or cheap return flight from $222 from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
The cheapest month to fly from DEN to SJU is February, when there's less demand. Off-peak season is generally when airlines offer better prices between these airports.
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 Denver Intl. Airport (DEN) to Luis Munoz Marin Intl. Airport (SJU)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DEN to SJU flight.
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.

Travel information

Origin airport
Denver Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$222
Distance
2730 mi
Average flight time
8 hours 25 mins

Book with confidence

Denver to San Juan Flights

The cheapest times to fly from Denver to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to San Juan are during the month of February. You can find some of the cheapest flights from Denver to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to San Juan

Sunday is one of the best days to book for cheap flights from Denver to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $143 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to San Juan Flights

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*Available to One Key members.