Cheap Flights from Denver International to San Juan Luis Munoz Marin

Compare Denver International to San Juan Luis Munoz Marin flight deals

Find the cheapest month or even day of the year to fly to San Juan Luis Munoz Marin

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Flight deals from Denver International to San Juan Luis Munoz Marin

Looking for a cheap last-minute deal or the best return flight from Denver International 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 International 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 International to San Juan Luis Munoz Marin flights are currently cheapest in August.

Direct flights from Denver International to San Juan Luis Munoz Marin

Denver International to San Juan Luis Munoz Marin: Alternative routes

Compare routes from Denver International to San Juan below. You may find an airport to fly into that's cheaper, faster, or easier than San Juan Luis Munoz Marin.

Denver to San Juan: Flight information

The things to know before you go.
Cheapest flight foundR 2,376
Cheapest month to flySeptember
Average flight time5 hrs, 41 mins
Most popular airlineUnited
Average flights per week8

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

The best price we found for a return flight from Denver International to San Juan Luis Munoz Marin is R 4,752. 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 41 minutes is the average flight time from Denver International to San Juan Luis Munoz Marin.
United flies direct from Denver International to San Juan Luis Munoz Marin.
As of July 2025, there are 8 flights per week flying from Denver International to San Juan Luis Munoz Marin.
The cheapest month to fly from Denver International to San Juan Luis Munoz Marin is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to San Juan Luis Munoz Marin Airport on Monday, 3 November 2025.
Yes – the average flight time is 5 hours and 41 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.
Currently, Frontier Airlines and United offer the cheapest flight tickets to San Juan Luis Munoz Marin.

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

  • Around 5 hours 40 minutes is how long you can expect to be in the air on a direct flight from Denver International Airport to Luis Munoz Marin International Airport.

  • San Juan is two hours ahead of Denver and follows the UTC-4 timezone.

  • Every week, there are nine Denver International Airport to Luis Munoz Marin International Airport flights. If you'd like to get going early, opt for the 09:46 United Airlines flight. If you'd rather make the most of your time before you fly, the last flight is at 09:50 with United Airlines.

  • Your DEN to SJU flight won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • You'll likely experience bigger queues during popular months like July. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.

  • United Airlines offers direct flights from Denver International Airport to Luis Munoz Marin International Airport. Book with this popular carrier, then get ready to tick off the sights in San Juan — and maybe even more of Puerto Rico if you have time.

  • The majority of passengers choose to travel with United Airlines on this route.

  • United Airlines stands out as the most punctual carrier for DEN to SJU flights, with 80.33% of services landing on schedule.

  • Think about adding a stopover when booking your ticket from Denver International Airport to Luis Munoz Marin International Airport. Just uncheck 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here are some options between DEN and SJU:

    • Hartsfield-Jackson Atlanta International Airport

    • Southwest Florida International Airport

    • Orlando International Airport

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

  • The cheapest price we've found for a one-way Denver International Airport to Luis Munoz Marin International Airport flight is R 2,376. A return ticket is currently R 4,752. Depending on the availability when you book, these fares could change.

  • Book six months before your departure date. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from DEN to SJU.

  • May is the cheapest month for flights from Denver International Airport to Luis Munoz Marin International Airport. If you need to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Stay on top of deals for cheap flights from DEN to SJU by creating a Price Alert. You'll get an email or push notification on the app when a lower fare becomes available.

  • Lock in the right flight for you with the help of the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Denver International Airport to Luis Munoz Marin International Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Denver International Airport (DEN)

  • DEN's address is 8500 Pena Boulevard.

  • Denver International Airport gets high marks for on-time performance. 80.23% of flights that take off from DEN reach their destination without delay.

  • Denver International Airport is about 40 kilometres from central Denver. If you're driving, catching a cab or ride-sharing from the centre, it'll take 35 minutes or so to get there, depending on the traffic.

  • The trip when using public transport typically takes 1 hour 30 minutes.

  • Get your flight from Denver International Airport to Luis Munoz Marin International Airport off to a relaxed start. Just a quick drive from DEN, spend the night in Baymont by Wyndham Denver International Airport and you'll be well-rested for the journey ahead.

Arriving at Luis Munoz Marin International Airport (SJU)

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

  • Luis Munoz Marin International Airport to central San Juan has a drive time of about 10 minutes. It's approximately 8 kilometres away.

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

When to fly to Luis Munoz Marin International Airport (SJU)

  • The quietest month for a flight from Denver International Airport to Luis Munoz Marin International Airport is May, while July is the busiest. Choose the ideal time to go to San Juan based on whether you prefer a more relaxed vibe or a faster pace.

  • Lock in your flight from Denver International Airport to Luis Munoz Marin International Airport for September if you'd like to go to San Juan during its warmest month. Expect temperatures of between 23ºC (73ºF) and 33ºC (91ºF).

  • If you like travelling in cooler conditions, search for a cheap ticket from DEN to SJU in February. Average temperatures are between 20ºC (68ºF) and 28ºC (82ºF) then.

Explore more of Puerto Rico

  • Bayamon is just one of the many places in Puerto Rico waiting to be discovered after you've seen San Juan. Around 10 kilometres away to the west, well-known attractions include Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña, Monumento a los Trovadores and Parque Palm Court.

  • Around 11 kilometres east of San Juan, Carolina is another favourite stop in Puerto Rico. Experience this destination's highlights firsthand at Isla Verde Beach, Parque de Doble A Roberto Clemente Walker and Drone Zone Track.

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