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Cheap flights from Denver to San Juan from $117

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 2/26. 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
10:40 am - 11:59 pmDEN-SJU
10h 19m1 stop
Frontier Logo
3:55 am - 12:52 pmSJU-DEN
11h 57m1 stop
$284Frontier
Find Deal
Tue, Feb 3 - Mon, Feb 9
Multiple Airlines Logo
9:05 pm - 12:27 pmDEN-SJU
12h 22m1 stop
Multiple Airlines Logo
2:29 am - 2:28 pmSJU-DEN
14h 59m2 stops
$285Multiple Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9
Multiple Airlines Logo
6:32 pm - 9:47 amDEN-SJU
12h 15m1 stop
Multiple Airlines Logo
6:00 am - 6:37 pmSJU-DEN
15h 37m2 stops
$286Multiple Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 8
Frontier Logo
9:41 am - 11:59 pmDEN-SJU
11h 18m1 stop
Frontier Logo
3:55 am - 12:52 pmSJU-DEN
11h 57m1 stop
$287Frontier
Find Deal
Fri, Feb 6 - Mon, Feb 9
Frontier Logo
10:40 am - 11:59 pmDEN-SJU
10h 19m1 stop
Frontier Logo
2:29 am - 2:28 pmSJU-DEN
14h 59m2 stops
$288Frontier
Find Deal
Tue, Feb 3 - Mon, Feb 9
Multiple Airlines Logo
9:00 pm - 3:35 pmDEN-SJU
15h 35m2 stops
Multiple Airlines Logo
7:00 am - 12:52 pmSJU-DEN
8h 52m1 stop
$289Multiple Airlines
Find Deal
Fri, Feb 6 - Tue, Feb 10
Multiple Airlines Logo
6:32 pm - 9:47 amDEN-SJU
12h 15m1 stop
Multiple Airlines Logo
7:44 pm - 8:19 amSJU-DEN
15h 35m1 stop
$290Multiple Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 8
Multiple Airlines Logo
9:05 pm - 12:27 pmDEN-SJU
12h 22m1 stop
Multiple Airlines Logo
2:29 am - 2:28 pmSJU-DEN
14h 59m2 stops
$291Multiple Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9
Multiple Airlines Logo
9:05 pm - 12:27 pmDEN-SJU
12h 22m1 stop
Multiple Airlines Logo
2:29 am - 2:28 pmSJU-DEN
14h 59m2 stops
$292Multiple Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9
Multiple Airlines Logo
9:05 pm - 12:27 pmDEN-SJU
12h 22m1 stop
Multiple Airlines Logo
2:29 am - 2:28 pmSJU-DEN
14h 59m2 stops
$293Multiple Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9

Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
Feb 3
DEN10:40 amDenver Intl
10h 19m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Feb 9
SJU3:55 amSan Juan Luis Munoz Marin Intl
11h 57m
1 stop
DEN12:52 pmDenver Intl
$284
Find similar
Frontier
Feb 6
DEN9:41 amDenver Intl
11h 18m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Feb 9
SJU3:55 amSan Juan Luis Munoz Marin Intl
11h 57m
1 stop
DEN12:52 pmDenver Intl
$287
Find similar
Frontier
Feb 3
DEN10:40 amDenver Intl
10h 19m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Feb 9
SJU2:29 amSan Juan Luis Munoz Marin Intl
14h 59m
2 stops
DEN2:28 pmDenver Intl
$288
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to San Juan 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 November 29, 2025.
Use the filters below to find and compare flights from Denver to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 2/3

10:40 am-11:59 pm

1 stop10h 19m

San Juan Luis Munoz Marin Intl

Mon 2/9

3:55 am-12:52 pm

1 stop11h 57m

$284

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 2/5

9:05 pm-12:27 pm

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:29 am-2:28 pm

2 stops14h 59m

$285

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 2/6

6:32 pm-9:47 am

1 stop12h 15m

San Juan Luis Munoz Marin Intl

Sun 2/8

6:00 am-6:37 pm

2 stops15h 37m

$286

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 2/6

9:41 am-11:59 pm

1 stop11h 18m

San Juan Luis Munoz Marin Intl

Mon 2/9

3:55 am-12:52 pm

1 stop11h 57m

$287

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 2/3

10:40 am-11:59 pm

1 stop10h 19m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:29 am-2:28 pm

2 stops14h 59m

$288

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 2/6

9:00 pm-3:35 pm

2 stops15h 35m

San Juan Luis Munoz Marin Intl

Tue 2/10

7:00 am-12:52 pm

1 stop8h 52m

$289

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 2/6

6:32 pm-9:47 am

1 stop12h 15m

San Juan Luis Munoz Marin Intl

Sun 2/8

7:44 pm-8:19 am

1 stop15h 35m

$290

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 2/5

9:05 pm-12:27 pm

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:29 am-2:28 pm

2 stops14h 59m

$291

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 2/5

9:05 pm-12:27 pm

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:29 am-2:28 pm

2 stops14h 59m

$292

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 2/5

9:05 pm-12:27 pm

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:29 am-2:28 pm

2 stops14h 59m

$293

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

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?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in August, then May is your next best option. Flight prices from Denver to San Juan during May average around $366.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Denver to San Juan is on a Thursday when prices can be found for as low as $647. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $794.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the afternoon when flights can be purchased for as low as $288. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $691 on average. Flights to San Juan from Denver in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Denver when booking week ahead of your departure date. In general, you can expect to find flights to San Juan for around $492 when searching week out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Denver for as low as $378 on momondo.

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

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

Cheap Denver to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to San Juan

Fastest flight time

5h 40m

Direct flights

Every day

Airports in San Juan

1 airport
The fastest flight from Denver to San Juan takes 5h 40m
Direct flights go from Denver to San Juan every day.
There is 1 airport near San Juan: San Juan Luis Munoz Marin Intl (SJU)
Search flight deals

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

    A flight from Denver Intl to San Juan will travel around 2735.5 mi. By plane, this route typically takes 8h 00m.

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

    Prices for flights from Denver Intl Airport to San Juan are refreshed on a daily basis.

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

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

    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.

  • What documentation or ID do you need to fly to San Juan?

    The required travel and health documents for your San Juan 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Denver to San Juan

Compare and see reviews for airlines that fly from Denver to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.8
3,100 reviews
Search Frontier flights
JetBluePriceFrom $337Free CancellationRating
7.2
2,903 reviews
Search JetBlue flights
DeltaPriceFrom $381Free CancellationRating
7.9
8,010 reviews
Search Delta flights
SouthwestPriceFrom $442Free CancellationRating
8.0
4,255 reviews
Search Southwest flights
United AirlinesPriceFrom $488Free CancellationRating
7.4
9,056 reviews
Search United Airlines flights
American AirlinesPriceFrom $494Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to San Juan. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to San Juan from Denver which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from Denver.

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

Yes momondo offers price alerts on flights to San Juan from Denver. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Juan trip

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport