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Cheap flights from Denver to San Juan from $120

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 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Denver to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 12:41 am
DEN
-
SJU
16h 41m
1 stop
Frontier Logo
9:00 am - 11:58 pm
SJU
-
DEN
16h 58m
1 stop
$242Frontier
Mon, Aug 10 - Sat, Aug 15
Frontier Logo
11:49 pm - 2:11 am
DEN
-
SJU
24h 22m
1 stop
Frontier Logo
9:00 am - 11:58 pm
SJU
-
DEN
16h 58m
1 stop
$245Frontier
Wed, Aug 12 - Sat, Aug 15
Frontier Logo
11:59 pm - 12:37 am
DEN
-
SJU
22h 38m
1 stop
Frontier Logo
8:50 am - 12:16 am
SJU
-
DEN
17h 26m
1 stop
$247Frontier
Sat, Jun 27 - Sat, Jul 4
Frontier Logo
12:59 pm - 5:34 pm
DEN
-
SJU
26h 35m
1 stop
Frontier Logo
7:30 am - 8:23 am
SJU
-
DEN
26h 53m
1 stop
$251Frontier
Tue, Aug 4 - Mon, Aug 10
Frontier Logo
3:10 pm - 2:11 am
DEN
-
SJU
9h 01m
1 stop
Frontier Logo
9:00 am - 11:58 pm
SJU
-
DEN
16h 58m
1 stop
$253Frontier
Tue, Jul 7 - Wed, Jul 15
Frontier Logo
3:10 pm - 2:11 am
DEN
-
SJU
9h 01m
1 stop
Frontier Logo
9:00 am - 11:58 pm
SJU
-
DEN
16h 58m
1 stop
$255Frontier
Tue, Jul 7 - Sat, Jul 25
Frontier Logo
6:00 am - 5:36 pm
DEN
-
SJU
9h 36m
1 stop
Frontier Logo
6:44 am - 2:58 pm
SJU
-
DEN
10h 14m
1 stop
$258Frontier
Wed, Aug 12 - Sun, Aug 16
Frontier Logo
6:00 am - 5:36 pm
DEN
-
SJU
9h 36m
1 stop
Frontier Logo
6:44 am - 2:58 pm
SJU
-
DEN
10h 14m
1 stop
$260Frontier
Thu, Aug 13 - Sun, Aug 16
Frontier Logo
11:59 pm - 11:59 pm
DEN
-
SJU
22h 00m
1 stop
Frontier Logo
8:50 am - 12:16 am
SJU
-
DEN
17h 26m
1 stop
$263Frontier
Mon, Jun 1 - Wed, Jun 10
Frontier Logo
11:59 pm - 11:59 pm
DEN
-
SJU
22h 00m
1 stop
Frontier Logo
8:50 am - 12:16 am
SJU
-
DEN
17h 26m
1 stop
$264Frontier
Mon, Jun 1 - Wed, Jun 10

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
Aug 10
DEN6:00 amDenver Intl
16h 41m
1 stop
SJU12:41 amSan Juan Luis Munoz Marin Intl
Aug 15
SJU9:00 amSan Juan Luis Munoz Marin Intl
16h 58m
1 stop
DEN11:58 pmDenver Intl
$242
Frontier
Aug 12
DEN11:49 pmDenver Intl
24h 22m
1 stop
SJU2:11 amSan Juan Luis Munoz Marin Intl
Aug 15
SJU9:00 amSan Juan Luis Munoz Marin Intl
16h 58m
1 stop
DEN11:58 pmDenver Intl
$245
Frontier
Jun 27
DEN11:59 pmDenver Intl
22h 38m
1 stop
SJU12:37 amSan Juan Luis Munoz Marin Intl
Jul 4
SJU8:50 amSan Juan Luis Munoz Marin Intl
17h 26m
1 stop
DEN12:16 amDenver Intl
$247

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 May 16, 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

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 8/10

6:00 am-12:41 am

1 stop16h 41m

San Juan Luis Munoz Marin Intl

Sat 8/15

9:00 am-11:58 pm

1 stop16h 58m

$242

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 8/12

11:49 pm-2:11 am

1 stop24h 22m

San Juan Luis Munoz Marin Intl

Sat 8/15

9:00 am-11:58 pm

1 stop16h 58m

$245

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 6/27

11:59 pm-12:37 am

1 stop22h 38m

San Juan Luis Munoz Marin Intl

Sat 7/4

8:50 am-12:16 am

1 stop17h 26m

$247

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 8/4

12:59 pm-5:34 pm

1 stop26h 35m

San Juan Luis Munoz Marin Intl

Mon 8/10

7:30 am-8:23 am

1 stop26h 53m

$251

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 7/7

3:10 pm-2:11 am

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Wed 7/15

9:00 am-11:58 pm

1 stop16h 58m

$253

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 7/7

3:10 pm-2:11 am

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Sat 7/25

9:00 am-11:58 pm

1 stop16h 58m

$255
Quickest round-trip

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 8/12

6:00 am-5:36 pm

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Sun 8/16

6:44 am-2:58 pm

1 stop10h 14m

$258

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 8/13

6:00 am-5:36 pm

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Sun 8/16

6:44 am-2:58 pm

1 stop10h 14m

$260

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 6/1

11:59 pm-11:59 pm

1 stop22h 00m

San Juan Luis Munoz Marin Intl

Wed 6/10

8:50 am-12:16 am

1 stop17h 26m

$263

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 6/1

11:59 pm-11:59 pm

1 stop22h 00m

San Juan Luis Munoz Marin Intl

Wed 6/10

8:50 am-12:16 am

1 stop17h 26m

$264

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $376.

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 $620. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday 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 $775.

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 $496 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 $334 on momondo.

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

As of May 2026, prices for Denver to San Juan Luis Munoz Marin Intl Airport flights are approximately 52% 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

$392

Fastest flight time

5h 40m

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 $392. 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 $676.
The fastest flight from Denver to San Juan Luis Munoz Marin Intl Airport takes 5h 40m
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 40m, 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 $187Free CancellationRating
5.6
2,949 reviews
Search Frontier flights
JetBluePriceFrom $272Free CancellationRating
7.1
2,977 reviews
Search JetBlue flights
DeltaPriceFrom $353Free CancellationRating
7.9
8,455 reviews
Search Delta flights
SouthwestPriceFrom $388Free CancellationRating
8.0
4,296 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights
United AirlinesPriceFrom $487Free CancellationRating
7.4
9,727 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 $680, but momondo users have found United Airlines deals from Denver to San Juan Luis Munoz Marin Intl Airport from as low as $487 round-trip. United Airlines has been scored 7.4/10 in 9,727 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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