DEN - SJU

$129 Find Cheap Flights from Denver to San Juan - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to San Juan departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$380
Typical prices: $390-$693
Frontier
Thu 11/5Wed 11/11
DEN - SJU • 2 stops
Cheapest non-stop
$577
Typical prices: $577-$721
United Airlines
Thu 10/8Mon 10/12
DEN - SJU • Non-stop
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 5h 55m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Philadelphia (PHL)
Cheapest • Avg $282 (round-trip)
Fort Lauderdale (FLL)
Shortest trip • 7h 22m (one-way)
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 18% price drop
March
Most popular
Good to know
Good to know
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Good to know
Good to know
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We hope you love your trip to San Juan!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to San Juan

Thu, Nov 5 - Wed, Nov 11
Frontier Logo
10:56 am - 6:37 pm
DEN
-
SJU
28h 41m
2 stops
Frontier Logo
5:39 pm - 10:59 pm
SJU
-
DEN
8h 20m
1 stop
$380Frontier
Sun, Aug 9 - Thu, Aug 27
Frontier Logo
6:05 am - 11:24 pm
DEN
-
SJU
15h 19m
1 stop
Frontier Logo
5:15 pm - 9:19 am
SJU
-
DEN
42h 04m
2 stops
$381Frontier
Sat, Aug 22 - Sun, Aug 30
Frontier Logo
11:59 pm - 2:16 pm
DEN
-
SJU
12h 17m
1 stop
Frontier Logo
3:10 am - 2:01 pm
SJU
-
DEN
12h 51m
2 stops
$382Frontier
Sat, Sep 12 - Sat, Sep 19
Frontier Logo
11:59 pm - 11:04 am
DEN
-
SJU
9h 05m
1 stop
Frontier Logo
4:39 pm - 10:59 pm
SJU
-
DEN
8h 20m
1 stop
$383Frontier
Wed, Aug 12 - Sun, Aug 16
Frontier Logo
5:05 pm - 6:44 am
DEN
-
SJU
11h 39m
1 stop
Frontier Logo
8:37 pm - 8:07 am
SJU
-
DEN
13h 30m
1 stop
$385Frontier
Sat, Aug 22 - Thu, Aug 27
Frontier Logo
10:43 am - 12:56 am
DEN
-
SJU
12h 13m
2 stops
Frontier Logo
9:16 am - 3:18 pm
SJU
-
DEN
8h 02m
1 stop
$386Frontier
Sat, Aug 15 - Sat, Aug 22
Frontier Logo
11:59 pm - 2:16 pm
DEN
-
SJU
12h 17m
1 stop
Frontier Logo
8:57 pm - 7:33 am
SJU
-
DEN
12h 36m
1 stop
$387Frontier
Wed, Aug 19 - Wed, Aug 26
Southwest Logo
8:10 am - 9:05 pm
DEN
-
SJU
10h 55m
2 stops
Southwest Logo
6:00 am - 2:50 pm
SJU
-
DEN
10h 50m
2 stops
$388Southwest
Wed, Nov 4 - Wed, Nov 11
Frontier Logo
6:30 am - 2:50 am
DEN
-
SJU
17h 20m
2 stops
Frontier Logo
5:39 pm - 10:59 pm
SJU
-
DEN
8h 20m
1 stop
$389Frontier
Mon, Aug 10 - Sat, Aug 15
Frontier Logo
6:00 am - 12:41 am
DEN
-
SJU
16h 41m
1 stop
Frontier Logo
5:15 pm - 9:03 am
SJU
-
DEN
17h 48m
1 stop
$390Frontier
Booking Insights

KAYAK's insights & trends for Denver to San Juan flights

Get data-powered insights and trends into flights from Denver to San Juan to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to San Juan Luis Munoz Marin Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to San Juan Luis Munoz Marin Intl Airport departing in November.

Flight prices are typical for this route right now.

Flights to San Juan Luis Munoz Marin Intl Airport from Denver usually cost between $378 and $648 in November.
The lowest price found in the past 5 days was $380 on Frontier (Nov 5-Nov 11).

What’s the cheapest day of the week to fly from Denver to San Juan?

The average price of all round-trip flights from Denver to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.

For Denver to San Juan, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from San Juan back to Denver, the best deals are generally found on Thursday, with Sunday being the most expensive.

What is the cheapest month to fly from Denver to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to San Juan Luis Munoz Marin Intl Airport is April, where tickets cost $438 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $675 and $615 respectively.

How far in advance should I book a flight from Denver to San Juan Luis Munoz Marin Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to San Juan Luis Munoz Marin Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

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Expert advice

Expert advice for your flight from Denver to San Juan

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more

Good to know

Low season

September

Cheapest flight

$129
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Denver to San Juan

When to book flights from Denver to San Juan

Are your dates flexible? Find out the best times to travel from Denver to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to San Juan flights

  • What is the cheapest flight from Denver to San Juan Luis Munoz Marin Intl Airport?

    In the last 5 days, the lowest price for a flight from Denver to San Juan Luis Munoz Marin Intl Airport was $129 for a one-way ticket and $381 for a round-trip.

  • Do I need a passport to fly between Denver and San Juan?

    Yes

  • Which airports will I be using when flying from Denver to San Juan?

    Denver airport is called Denver Intl and the only airport in San Juan is San Juan Luis Munoz Marin Intl.

  • Which airlines offer Wi-Fi service onboard planes from Denver to San Juan?

    Only JetBlue offers inflight Wi-Fi service on the Denver to San Juan flight route.

  • Which aircraft models fly most regularly from Denver to San Juan?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Denver to San Juan flight route.

  • Which airline alliances offer flights from Denver to San Juan?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and San Juan, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Denver to San Juan?

    There are nonstop flights from Denver to San Juan on a daily basis.

  • Which is the best airline for flights from Denver to San Juan, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Denver to San Juan are Southwest and Delta. With an average price for the route of $539 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $718 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Denver to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Denver with another airline. Booking your flights between Denver and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to San Juan Luis Munoz Marin Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $368 or less one-way and $674 or less round-trip.

Prefer to fly direct from Denver to San Juan?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to San Juan Luis Munoz Marin Intl.
Find which airlines fly direct from Denver Intl Airport to San Juan Luis Munoz Marin Intl Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to San Juan Luis Munoz Marin Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

San Juan Luis Munoz Marin Intl to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Everything you need to know for your flight from Denver to San Juan

Information on your arrival and departure airports

Denver (DEN)
Luis Munoz Marin Intl (SJU)