Cheap Flights from Denver to San Juan Luis Munoz Marin

Compare Denver to San Juan Luis Munoz Marin flight deals

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Flight deals from Denver to San Juan Luis Munoz Marin

Looking for a cheap last-minute deal or the best return flight from Denver to San Juan Luis Munoz Marin? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Denver to San Juan Luis Munoz Marin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to San Juan Luis Munoz Marin flights are currently cheapest in March.

Direct flights from Denver to San Juan Luis Munoz Marin

Denver to San Juan: Flight information

The things to know before you go.
Cheapest flight found$313
Cheapest month to flyMarch
Average flight time5 hrs, 45 mins
Most popular airlineUnited
Average flights per week8

Finding cheap flights from Denver to San Juan Luis Munoz Marin: Frequently asked questions

The best price we found for a return flight from Denver to San Juan Luis Munoz Marin is $313. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 45 minutes is the average flight time from Denver to San Juan Luis Munoz Marin.
United flies direct from Denver to San Juan Luis Munoz Marin.
As of February 2026, there are 8 flights per week flying from Denver to San Juan Luis Munoz Marin.
The cheapest month to fly from Denver to San Juan Luis Munoz Marin is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to San Juan Luis Munoz Marin Airport on Wednesday, 4 March 2026.
Yes – the average flight time is 5 hours and 45 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan Luis Munoz Marin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Denver to Luis Munoz Marin International Airport (SJU): What you need to know

  • Denver International Airport (DEN) is Denver's main airport. Check out your options for reserving a flight from Denver to Luis Munoz Marin International Airport (SJU) departing from here.

  • 5 hours 40 minutes is the average duration of a direct Denver to Luis Munoz Marin International Airport flight.

  • The timezone in San Juan is UTC-4, which is two hours ahead of Denver. Luis Munoz Marin International Airport is located in San Juan.

  • Denver International Airport (DEN) to Luis Munoz Marin International Airport (SJU) is the most popular route, with 6 direct services every week. You can get from DEN to SJU on United Airlines's 9:40am flight.

  • Get to the airport on time so you don't miss your flight from Denver to SJU. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • Taking off during a peak period like school or public holidays? Expect longer lines at check-in and security. For peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

Airports in Denver

Denver International Airport (DEN)

  • Go straight to your destination from Denver International Airport (DEN). Direct flights from Denver to Luis Munoz Marin International Airport (SJU) are available from here.

  • United Airlines is a well-known airline that offers direct flights from Denver to Luis Munoz Marin International Airport leaving from DEN.

  • United Airlines sees the most traveller bookings for flights from DEN to SJU.

  • United Airlines ranks highest for on-time performance. A reliable 80.33% of its services on this route complete the journey on schedule.

  • A stopover is the ideal opportunity to take a travel break and maybe even explore another city. When browsing cheap flights from Denver to SJU leaving from Denver International Airport (DEN), uncheck the 'Direct flights only' box to find out where you can stop along the way. Some popular options include:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Orlando International Airport (MCO)

    • Southwest Florida International Airport (RSW)

  • Located around 40 kilometres from the centre of Denver, DEN can be reached in about 35 minutes by car, depending on traffic. The journey by public transport takes roughly 1 hour 30 minutes.

  • In search of a place to stay before your flight from Denver to Luis Munoz Marin International Airport? Consider Baymont by Wyndham Denver International Airport. Enjoy a good night's sleep here before making your way to Denver International Airport.

  • Denver International Airport has a solid on-time performance, making delays less likely. Departures from DEN make it to their destination as scheduled 80.23% of the time.

  • The address for DEN is 8500 Pena Boulevard.

About Luis Munoz Marin International Airport (SJU)

Getting from Luis Munoz Marin International Airport (SJU) to central San Juan

  • The centre of San Juan is roughly 6 kilometres from Luis Munoz Marin International Airport. Travel times by car hire or cab will vary based on traffic conditions and time of day, so do a little research before your trip.

  • If you're travelling on public transport, expect a journey of around 55 minutes.

How to find the cheapest flights from Denver to Luis Munoz Marin International Airport (SJU)

  • Currently, $145 is the lowest price we've found for a one-way ticket from Denver to Luis Munoz Marin International Airport. The cheapest price for a return flight is $313. Remember fares can change due to availability at the time of booking.

  • To find cheap flights from Denver to SJU, book in advance. Airlines typically offer the most competitive fares when tickets are first released.

  • If you have some flexibility with your travel dates, use the 'Whole month' search tool. It'll give you the cheapest price in each month when searching for your Denver to Luis Munoz Marin International Airport ticket.

  • You don't need to check every day to find out if fares have dropped when you set up a Price Alert. We'll let you know when a better deal comes up on flight tickets from Denver to SJU.

  • Tailor your flights using filters. Pick your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Denver to Luis Munoz Marin International Airport.

The best time to fly from Denver to Luis Munoz Marin International Airport (SJU)

  • May is the quietest month for flights from Denver to Luis Munoz Marin International Airport (SJU), while July is the most popular. Find the best time to go to San Juan based on whether you want a laid-back vibe or a more bustling atmosphere.

  • Book a Denver to SJU flight ticket departing in September if you want to visit the city during its warmest month. You can expect temperatures in San Juan to range from 23ºC to 33ºC.

  • February sees temperatures of between 20ºC and 28ºC. Look for cheap tickets from Denver to Luis Munoz Marin International Airport around that time if you like travelling in cooler conditions.

More about San Juan

  • Start your San Juan trip right by choosing the ideal place to stay. As soon as you've booked your flight from Denver to Luis Munoz Marin International Airport, check out our range of accommodation options including:

  • There are so many things to do and see in this city, it can be difficult to know where to begin. Balneario El Escambrón, Esperanza Beach and Escambron Green are leading attractions which should be on any well-planned San Juan itinerary.

Explore more of Puerto Rico

  • San Juan is always a good idea, but there are so many other parts of Puerto Rico waiting to be explored. Around 121 kilometres west of San Juan, a visit to Aguadilla will fill your itinerary to the brim. Don't miss top attractions like Silla Aguadilla, Bridges Surf Beach and Playa Rompe Olas.

  • If you're interested in discovering another side of Puerto Rico, consider Isabela, roughly 105 kilometres west of San Juan. Shore Island Beach, Guajataca Forest Reserve and Middles Beach are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.