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Cheap flights from Denver to San Juan from $140

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to San Juan departing on 8/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
10:45 am - 9:40 pm
DEN
-
SJU
8h 55m
1 stop
Southwest Logo
5:30 am - 2:20 pm
SJU
-
DEN
10h 50m
2 stops
$388Southwest
Tue, Oct 6 - Mon, Oct 12
Frontier Logo
11:46 pm - 2:00 pm
DEN
-
SJU
36h 14m
2 stops
Frontier Logo
3:36 pm - 11:48 pm
SJU
-
DEN
10h 12m
1 stop
$391Frontier
Wed, Jul 29 - Wed, Aug 5
Frontier Logo
10:00 am - 12:41 am
DEN
-
SJU
36h 41m
2 stops
Frontier Logo
7:10 am - 8:20 am
SJU
-
DEN
27h 10m
1 stop
$392Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
9:58 am - 12:41 am
DEN
-
SJU
12h 43m
2 stops
Frontier Logo
3:10 am - 3:18 pm
SJU
-
DEN
14h 08m
1 stop
$393Frontier
Tue, Jul 28 - Sat, Aug 1
Frontier Logo
5:23 pm - 5:02 am
DEN
-
SJU
9h 39m
1 stop
Frontier Logo
8:37 pm - 8:07 am
SJU
-
DEN
13h 30m
1 stop
$394Frontier
Wed, Jul 29 - Sat, Aug 8
Frontier Logo
8:55 am - 12:41 am
DEN
-
SJU
13h 46m
1 stop
Frontier Logo
7:10 am - 8:20 am
SJU
-
DEN
27h 10m
1 stop
$395Frontier
Wed, Aug 5 - Fri, Aug 7
Frontier Logo
6:30 am - 2:00 pm
DEN
-
SJU
29h 30m
2 stops
Frontier Logo
12:13 pm - 11:00 pm
SJU
-
DEN
12h 47m
1 stop
$396Frontier
Wed, Jul 29 - Tue, Aug 4
Frontier Logo
5:23 pm - 5:02 am
DEN
-
SJU
9h 39m
1 stop
Frontier Logo
6:00 am - 11:57 pm
SJU
-
DEN
43h 57m
2 stops
$397Frontier
Wed, Jul 29 - Tue, Aug 4
Frontier Logo
11:46 pm - 2:00 pm
DEN
-
SJU
36h 14m
2 stops
Frontier Logo
3:36 pm - 11:48 pm
SJU
-
DEN
10h 12m
1 stop
$398Frontier
Wed, Jul 29 - Wed, Aug 5
Southwest Logo
7:05 am - 11:20 pm
DEN
-
SJU
13h 15m
1 stop
Southwest Logo
5:35 am - 1:15 pm
SJU
-
DEN
10h 40m
2 stops
$400Southwest
Tue, Nov 17 - Tue, Nov 24

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Frontier flights from Denver to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Denver to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Jul 29
DEN11:46 pmDenver Intl
36h 14m
2 stops
SJU2:00 pmSan Juan Luis Munoz Marin Intl
Aug 5
SJU3:36 pmSan Juan Luis Munoz Marin Intl
10h 12m
1 stop
DEN11:48 pmDenver Intl
$391
Frontier
Aug 5
DEN10:00 amDenver Intl
36h 41m
2 stops
SJU12:41 amSan Juan Luis Munoz Marin Intl
Aug 10
SJU7:10 amSan Juan Luis Munoz Marin Intl
27h 10m
1 stop
DEN8:20 amDenver Intl
$392
Frontier
Jul 28
DEN9:58 amDenver Intl
12h 43m
2 stops
SJU12:41 amSan Juan Luis Munoz Marin Intl
Aug 1
SJU3:10 amSan Juan Luis Munoz Marin Intl
14h 08m
1 stop
DEN3:18 pmDenver Intl
$393

Southwest flights from Denver to San Juan Luis Munoz Marin Intl Airport

Our best Southwest deals on Denver to San Juan Luis Munoz Marin Intl Airport flight tickets
Southwest
Aug 13
DEN6:30 pmDenver Intl
12h 40m
1 stop
SJU9:10 amSan Juan Luis Munoz Marin Intl
Aug 17
SJU8:55 pmSan Juan Luis Munoz Marin Intl
14h 45m
1 stop
DEN9:40 amDenver Intl
$388
Southwest
Aug 12
DEN9:05 amDenver Intl
10h 55m
2 stops
SJU10:00 pmSan Juan Luis Munoz Marin Intl
Aug 19
SJU8:20 amSan Juan Luis Munoz Marin Intl
9h 00m
2 stops
DEN3:20 pmDenver Intl
$400
Southwest
Aug 4
DEN6:00 amDenver Intl
10h 10m
2 stops
SJU6:10 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU10:30 amSan Juan Luis Munoz Marin Intl
11h 20m
2 stops
DEN7:50 pmDenver Intl
$401

momondo Fare Finder

 
Customize your flight search to find flights from Denver to San Juan Luis Munoz Marin Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 1, 2026.
Use the filters below to find and compare flights from Denver to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 10/6

10:45 am-9:40 pm

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Mon 10/12

5:30 am-2:20 pm

2 stops10h 50m

$388

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 7/29

11:46 pm-2:00 pm

2 stops36h 14m

San Juan Luis Munoz Marin Intl

Wed 8/5

3:36 pm-11:48 pm

1 stop10h 12m

$391

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 8/5

10:00 am-12:41 am

2 stops36h 41m

San Juan Luis Munoz Marin Intl

Mon 8/10

7:10 am-8:20 am

1 stop27h 10m

$392

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 7/28

9:58 am-12:41 am

2 stops12h 43m

San Juan Luis Munoz Marin Intl

Sat 8/1

3:10 am-3:18 pm

1 stop14h 08m

$393

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 7/29

5:23 pm-5:02 am

1 stop9h 39m

San Juan Luis Munoz Marin Intl

Sat 8/8

8:37 pm-8:07 am

1 stop13h 30m

$394

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 8/5

8:55 am-12:41 am

1 stop13h 46m

San Juan Luis Munoz Marin Intl

Fri 8/7

7:10 am-8:20 am

1 stop27h 10m

$395

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 7/29

6:30 am-2:00 pm

2 stops29h 30m

San Juan Luis Munoz Marin Intl

Tue 8/4

12:13 pm-11:00 pm

1 stop12h 47m

$396

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 7/29

5:23 pm-5:02 am

1 stop9h 39m

San Juan Luis Munoz Marin Intl

Tue 8/4

6:00 am-11:57 pm

2 stops43h 57m

$397

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 7/29

11:46 pm-2:00 pm

2 stops36h 14m

San Juan Luis Munoz Marin Intl

Wed 8/5

3:36 pm-11:48 pm

1 stop10h 12m

$398

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 11/17

7:05 am-11:20 pm

1 stop13h 15m

San Juan Luis Munoz Marin Intl

Tue 11/24

5:35 am-1:15 pm

2 stops10h 40m

$400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to San Juan from

How to get the cheapest flight ticket from Denver to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Denver and San Juan Luis Munoz Marin Intl Airport?

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

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $429.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Denver is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $606. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $779.

What is the cheapest Denver Intl to San Juan Luis Munoz Marin Intl flight route?

Fly from Denver Intl to San Juan Luis Munoz Marin Intl for the best Denver Intl - San Juan Luis Munoz Marin Intl flight prices

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

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $530 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Denver for as low as $434 on momondo.

What cabin class options are available on Denver to San Juan Luis Munoz Marin Intl Airport flights?

There are 4 cabin classes available to choose from on Denver to San Juan Luis Munoz Marin Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Denver to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of July 2026, prices for Denver to San Juan Luis Munoz Marin Intl Airport flights are approximately 86% more expensive when compared to flights at the same time last year.

When to book flights from Denver to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to San Juan Luis Munoz Marin Intl Airport (DEN to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to San Juan Luis Munoz Marin Intl Airport

Best Price Found

$394

Fastest flight time

5h 39m

Direct flights

Every day
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Denver in the past 72 hours is $394. The best round-trip flight deal from Denver to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $667.
The fastest flight from Denver to San Juan Luis Munoz Marin Intl Airport takes 5h 39m
Direct flights go from Denver to San Juan Luis Munoz Marin Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Denver to San Juan Luis Munoz Marin Intl Airport

  • How far is Denver Intl to San Juan Luis Munoz Marin Intl by plane?

    Denver Intl and San Juan Luis Munoz Marin Intl are 2741.9 mi apart from one another. Flights usually cover this in 5h 39m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Denver Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Denver Intl Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How many operators does momondo search for flights from Denver Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Denver Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Denver to San Juan Luis Munoz Marin Intl Airport?

  • What is the most popular airline from Denver to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Denver to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Denver to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $182Free CancellationRating
5.6
2,849 reviews
Search Frontier flights
JetBluePriceFrom $272Free CancellationRating
7.1
3,010 reviews
Search JetBlue flights
DeltaPriceFrom $353Free CancellationRating
7.8
8,452 reviews
Search Delta flights
SouthwestPriceFrom $388Free CancellationRating
7.9
4,246 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.1
11,765 reviews
Search American Airlines flights
United AirlinesPriceFrom $490Free CancellationRating
7.4
9,909 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to San Juan Luis Munoz Marin Intl Airport

    United Airlines operates around 7 flights from Denver to San Juan Luis Munoz Marin Intl Airport every week. The average price of these flights found in the last 72 hours has been $693, but momondo users have found United Airlines deals from Denver to San Juan Luis Munoz Marin Intl Airport from as low as $490 round-trip. United Airlines has been scored 7.4/10 in 9,909 reviews.

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Caguas
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Denver to San Juan?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from Denver.

Can I find flights from Denver to San Juan with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Juan from Denver with this policy.

How can momondo help me find flights from Denver to San Juan?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Denver to San Juan.

I’m not ready to book a flight from Denver to San Juan right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Denver to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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