Cheap Flights from San Juan to Denver International

Compare San Juan to Denver International flight deals

Find the cheapest month or even day of the year to fly to Denver International

Book the best Denver International fare with no extra fees

Flight deals from San Juan to Denver International

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

Find the cheapest month to fly from San Juan to Denver International

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

Direct flights from San Juan to Denver International

San Juan to Denver International: Alternative routes

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

San Juan to Denver: Flight information

The things to know before you go.
Cheapest flight foundR 1,601
Cheapest month to flyDecember
Average flight time6 hrs, 34 mins
Most popular airlineUnited
Average flights per week11

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

The best price we found for a return flight from San Juan to Denver International is R 3,201. 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.
6 hours and 34 minutes is the average flight time from San Juan to Denver International.
United flies direct from San Juan to Denver International.
As of October 2025, there are 11 flights per week flying from San Juan to Denver International.
The cheapest month to fly from San Juan to Denver International is usually December.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Juan to Denver International Airport on Thursday, 4 December 2025.
Yes – the average flight time is 6 hours and 34 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 Denver International 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 Denver is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from San Juan to Denver International Airport (DEN): What you need to know

  • Planning your getaway starts with working out where you'll fly out of in San Juan. Luis Munoz Marin International Airport (SJU) is the city's main base, so explore your options for reserving a flight from San Juan to Denver International Airport (DEN) taking off from here.

  • The average length of a direct San Juan to Denver International Airport flight is 6 hours 35 minutes.

  • The timezone in Denver is UTC-6, which is two hours behind San Juan. Denver International Airport is located in Denver.

  • Luis Munoz Marin International Airport (SJU) to Denver International Airport (DEN) is the most popular route, with 6 direct services each week. Get from SJU to DEN on United Airlines's 1:25pm departure.

  • Get to the airport on time so you don't miss your flight from San Juan to DEN. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • With more travellers during high season, plan to get to your terminal even earlier. Two hours for domestic flights and up to four for international trips will allow for extra wait times.

Airports in San Juan

Luis Munoz Marin International Airport (SJU)

  • Luis Munoz Marin International Airport (SJU) makes it easy to travel directly to your destination. Nonstop flights from San Juan to Denver International Airport (DEN) depart from this terminal.

  • Book your direct flight from San Juan to Denver International Airport with United Airlines. This well-known airline operates departures from SJU.

  • United Airlines is the airline with the highest number of bookings for flights from SJU to DEN.

  • United Airlines leads the way as the most punctual carrier on this route, with 80.0% of its services arriving on schedule.

  • We make it simple to find cheap flights from San Juan to DEN that include a stopover. To explore all the options leaving from Luis Munoz Marin International Airport (SJU), uncheck 'Direct flights only.' Then, simply select a flight offering a stop long enough to tour the city of your choice. Some popular stopovers between SJU and DEN include:

    • Orlando International Airport (MCO)

    • Fort Lauderdale-Hollywood International Airport (FLL)

    • Tampa International Airport (TPA)

  • SJU is about 8 kilometres from central San Juan. If you're catching a cab, ride-sharing or driving from the centre, it'll take 10 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 55 minutes.

  • Want an easy start to your holiday? Stay near Luis Munoz Marin International Airport. Whether you're catching an early flight from San Juan to Denver International Airport or want to avoid feeling rushed, these hotels are just the thing:

  • When it comes to Luis Munoz Marin International Airport's on-time performance, 73.65% of flights meet their scheduled arrival time.

Fernando Luis Ribas Dominicci Airport (SIG)

About Denver International Airport (DEN)

  • Consider checking in to Baymont by Wyndham Denver International Airport after touching down from your flight from San Juan to Denver International Airport. It's not too far from DEN and a great option if you want to relax as soon as possible.

  • Say yes to new adventures by picking up a Denver International Airport rental car. Grab your wheels from Routes Car Rentals, Dollar or Budget to explore Denver and beyond.

  • Get the best deal by reserving your ride around one week ahead of your San Juan to Denver International Airport flight.

  • DEN is located at 8500 Pena Boulevard.

Getting from Denver International Airport (DEN) to central Denver

  • The centre of Denver is around 31 kilometres from Denver International Airport. Journey times by cab or car hire will vary depending on time of day and traffic conditions, so do some research ahead of your trip.

  • If you're travelling by public transport, expect a journey time of around 1 hour 30 minutes.

How to find the cheapest flights from San Juan to Denver International Airport (DEN)

  • R 1,601 is currently the best price for a one-way ticket from San Juan to Denver International Airport. Return flights start at R 3,201. These fares may change depending on demand.

  • To find cheap flights from San Juan to DEN, book ahead. Airlines generally offer the most competitive fares when flights first go on sale.

  • The 'Whole month' tool will show you the cheapest San Juan to Denver International Airport tickets across the entire month. It's an easy way to snap up a bargain if your plans are flexible.

  • Save time looking for cheap plane tickets from San Juan to DEN by setting up a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.

  • Find a cheap flight from San Juan to Denver International Airport by using filters. Choose your preferred departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from San Juan to Denver International Airport (DEN)

  • July is the most popular month for flights from San Juan to Denver International Airport (DEN). Plan your visit to Denver in April if you'd rather be there when it's quieter.

  • The warmest month in Denver is July, with temperatures ranging between 14ºC (57ºF) and 32ºC (90ºF). Lock in your San Juan to DEN plane ticket then if this is the type of weather you enjoy.

  • Search for cheap tickets from San Juan to Denver International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -9ºC (16ºF) and 7ºC (45ºF).

More about Denver

Explore more of the United States

  • Denver has plenty to offer, but there are so many other parts of the United States just waiting to be discovered. About 113 kilometres south of Denver, a trip to Colorado Springs will keep you on the go. Start with leading sights like Garden of the Gods, Pikes Peak Region Attractions and Red Rock Canyon.

  • Around 177 kilometres south of Denver, Pueblo is another favourite stop in the United States. Get a taste of what this destination has to offer at Cathedral of the Sacred Heart, Rosemount Museum and Minnequa Lake Park.

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