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Cheap flights from Denver to San Juan from $122

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 10/10. 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

Frontier Logo
11:59 pm - 11:29 pmDEN-SJU
21h 30m1 stop
Frontier Logo
9:06 pm - 8:33 amSJU-DEN
13h 27m1 stop
$254Frontier
Find Deal
Sun, Oct 19 - Thu, Oct 23
Frontier Logo
7:01 pm - 2:34 amDEN-SJU
29h 33m1 stop
Frontier Logo
3:39 am - 5:55 pmSJU-DEN
16h 16m1 stop
$256Frontier
Find Deal
Fri, Sep 12 - Thu, Sep 18
Frontier Logo
12:34 am - 12:01 pmDEN-SJU
9h 27m1 stop
Frontier Logo
3:40 am - 11:16 pmSJU-DEN
21h 36m1 stop
$257Frontier
Find Deal
Sat, Oct 18 - Wed, Oct 22
Frontier Logo
12:34 am - 12:01 pmDEN-SJU
9h 27m1 stop
Frontier Logo
6:22 am - 3:24 pmSJU-DEN
11h 02m1 stop
$259Frontier
Find Deal
Sat, Oct 18 - Wed, Oct 22
Frontier Logo
12:34 am - 12:01 pmDEN-SJU
9h 27m1 stop
Frontier Logo
3:40 am - 6:13 pmSJU-DEN
16h 33m2 stops
$260Frontier
Find Deal
Sat, Oct 18 - Wed, Oct 22
Frontier Logo
12:59 am - 2:28 pmDEN-SJU
11h 29m1 stop
Frontier Logo
9:00 am - 5:56 pmSJU-DEN
10h 56m1 stop
$262Frontier
Find Deal
Fri, Oct 24 - Wed, Oct 29
Frontier Logo
12:34 am - 1:32 amDEN-SJU
21h 58m1 stop
Frontier Logo
7:30 am - 8:43 amSJU-DEN
28h 13m1 stop
$265Frontier
Find Deal
Thu, Nov 6 - Sat, Nov 15
Frontier Logo
12:34 am - 12:01 pmDEN-SJU
9h 27m1 stop
Frontier Logo
9:06 pm - 8:33 amSJU-DEN
13h 27m1 stop
$268Frontier
Find Deal
Sat, Oct 18 - Fri, Oct 24
Logo
11:18 am - 4:23 pmDEN-SJU
26h 05m1 stop
Logo
6:00 am - 6:30 pmSJU-DEN
15h 30m1 stop
$279
Find Deal
Fri, Nov 7 - Mon, Nov 17
Logo
6:59 pm - 1:43 pmDEN-SJU
16h 44m1 stop
Logo
3:19 pm - 7:20 amSJU-DEN
18h 01m2 stops
$290
Find Deal
Sat, Sep 13 - Sat, Sep 20

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
Oct 19
DEN11:59 pmDenver Intl
21h 30m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
Oct 23
SJU9:06 pmSan Juan Luis Munoz Marin Intl
13h 27m
1 stop
DEN8:33 amDenver Intl
$254
Find similar
Frontier
Sep 12
DEN7:01 pmDenver Intl
29h 33m
1 stop
SJU2:34 amSan Juan Luis Munoz Marin Intl
Sep 18
SJU3:39 amSan Juan Luis Munoz Marin Intl
16h 16m
1 stop
DEN5:55 pmDenver Intl
$256
Find similar
Frontier
Oct 18
DEN12:34 amDenver Intl
9h 27m
1 stop
SJU12:01 pmSan Juan Luis Munoz Marin Intl
Oct 22
SJU3:40 amSan Juan Luis Munoz Marin Intl
21h 36m
1 stop
DEN11:16 pmDenver Intl
$257
Find similar

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 August 25, 2025.
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

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 10/19

11:59 pm-11:29 pm

1 stop21h 30m

San Juan Luis Munoz Marin Intl

Thu 10/23

9:06 pm-8:33 am

1 stop13h 27m

$254

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 9/12

7:01 pm-2:34 am

1 stop29h 33m

San Juan Luis Munoz Marin Intl

Thu 9/18

3:39 am-5:55 pm

1 stop16h 16m

$256

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 10/18

12:34 am-12:01 pm

1 stop9h 27m

San Juan Luis Munoz Marin Intl

Wed 10/22

3:40 am-11:16 pm

1 stop21h 36m

$257

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 10/18

12:34 am-12:01 pm

1 stop9h 27m

San Juan Luis Munoz Marin Intl

Wed 10/22

6:22 am-3:24 pm

1 stop11h 02m

$259

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 10/18

12:34 am-12:01 pm

1 stop9h 27m

San Juan Luis Munoz Marin Intl

Wed 10/22

3:40 am-6:13 pm

2 stops16h 33m

$260

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 10/24

12:59 am-2:28 pm

1 stop11h 29m

San Juan Luis Munoz Marin Intl

Wed 10/29

9:00 am-5:56 pm

1 stop10h 56m

$262

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 11/6

12:34 am-1:32 am

1 stop21h 58m

San Juan Luis Munoz Marin Intl

Sat 11/15

7:30 am-8:43 am

1 stop28h 13m

$265

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 10/18

12:34 am-12:01 pm

1 stop9h 27m

San Juan Luis Munoz Marin Intl

Fri 10/24

9:06 pm-8:33 am

1 stop13h 27m

$268

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 11/7

11:18 am-4:23 pm

1 stop26h 05m

San Juan Luis Munoz Marin Intl

Mon 11/17

6:00 am-6:30 pm

1 stop15h 30m

$279

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 9/13

6:59 pm-1:43 pm

1 stop16h 44m

San Juan Luis Munoz Marin Intl

Sat 9/20

3:19 pm-7:20 am

2 stops18h 01m

$290

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $336.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $637. 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 $776.

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

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the afternoon when flights can be purchased for as low as $288. Flights in the morning are often more expensive with an average ticket price of $688.

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 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 $458 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 $328 on momondo.

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

There are 4 cabin classes available to choose from on Denver Intl to San Juan Luis Munoz Marin Intl 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 August 2025, prices for Denver to San Juan Luis Munoz Marin Intl Airport flights are approximately 65% 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

$576

Fastest flight time

5h 39m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun
The best flight deal from Denver to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $576
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 on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.
Search flight deals

  • 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 7h 17m, 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 $135Free CancellationRating
5.8
3,201 reviews
Search Frontier flights
JetBluePriceFrom $276Free CancellationRating
7.2
2,919 reviews
Search JetBlue flights
DeltaPriceFrom $381Free CancellationRating
7.9
7,981 reviews
Search Delta flights
SouthwestPriceFrom $444Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
American AirlinesPriceFrom $494Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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

    United Airlines operates around 1 flight 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 $486 round-trip. United Airlines has been scored 7.4/10 in 8,940 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
Caguas
Humacao
Rio Grande
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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