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Cheap flights from Denver to San Juan from $95

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 1/22. 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
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
11:25 pm - 2:16 pm
DEN
-
SJU
11h 51m1 stop
Frontier Logo
4:09 pm - 11:04 pm
SJU
-
DEN
9h 55m1 stop
$276Frontier
Wed, Dec 17 - Sun, Dec 21
Multiple Airlines Logo
7:30 am - 11:33 pm
DEN
-
SJU
13h 03m2 stops
Multiple Airlines Logo
8:00 am - 5:36 pm
SJU
-
DEN
12h 36m1 stop
$277Multiple Airlines
Wed, Jan 21 - Tue, Jan 27
Frontier Logo
6:10 am - 8:10 pm
DEN
-
SJU
11h 00m1 stop
Frontier Logo
4:35 pm - 9:26 pm
SJU
-
DEN
31h 51m1 stop
$279Frontier
Fri, Jan 9 - Sat, Jan 17
Frontier Logo
11:06 pm - 2:16 pm
DEN
-
SJU
12h 10m1 stop
Frontier Logo
7:05 pm - 8:00 am
SJU
-
DEN
15h 55m1 stop
$280Frontier
Wed, Dec 31 - Wed, Jan 7
Frontier Logo
3:45 pm - 6:34 am
DEN
-
SJU
11h 49m1 stop
Frontier Logo
3:14 pm - 9:49 pm
SJU
-
DEN
9h 35m1 stop
$281Frontier
Mon, Dec 22 - Tue, Dec 23
Frontier Logo
11:59 pm - 12:42 pm
DEN
-
SJU
9h 43m1 stop
Frontier Logo
8:00 am - 5:36 pm
SJU
-
DEN
12h 36m1 stop
$282Frontier
Thu, Jan 15 - Sat, Jan 24
Frontier Logo
12:16 am - 3:01 pm
DEN
-
SJU
11h 45m1 stop
Frontier Logo
7:05 pm - 8:00 am
SJU
-
DEN
15h 55m1 stop
$283Frontier
Sun, Dec 28 - Wed, Jan 7
Frontier Logo
9:41 am - 12:34 am
DEN
-
SJU
11h 53m1 stop
Frontier Logo
7:00 am - 5:47 pm
SJU
-
DEN
13h 47m1 stop
$284Frontier
Sun, Feb 8 - Sun, Feb 15
Frontier Logo
1:42 pm - 1:21 am
DEN
-
SJU
8h 39m1 stop
Frontier Logo
3:58 am - 5:54 pm
SJU
-
DEN
16h 56m1 stop
$285Frontier
Fri, Jan 9 - Fri, Jan 16
Frontier Logo
1:28 pm - 11:59 pm
DEN
-
SJU
7h 31m1 stop
Frontier Logo
8:25 am - 9:45 pm
SJU
-
DEN
16h 20m2 stops
$286Frontier
Fri, Jan 23 - Fri, Jan 30

Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
Dec 17
DEN11:25 pmDenver Intl
11h 51m
1 stop
SJU2:16 pmSan Juan Luis Munoz Marin Intl
Dec 21
SJU4:09 pmSan Juan Luis Munoz Marin Intl
9h 55m
1 stop
DEN11:04 pmDenver Intl
$276
Find similar
Frontier
Dec 12
DEN7:00 amDenver Intl
13h 56m
1 stop
SJU11:56 pmSan Juan Luis Munoz Marin Intl
Dec 23
SJU3:14 pmSan Juan Luis Munoz Marin Intl
9h 35m
1 stop
DEN9:49 pmDenver Intl
$277
Find similar
Frontier
Jan 9
DEN6:10 amDenver Intl
11h 00m
1 stop
SJU8:10 pmSan Juan Luis Munoz Marin Intl
Jan 17
SJU4:35 pmSan Juan Luis Munoz Marin Intl
31h 51m
1 stop
DEN9:26 pmDenver Intl
$279
Find similar

JetBlue flights from Denver to San Juan

Our best JetBlue deals on Denver to San Juan flight tickets
JetBlue
May 7
DEN9:18 amDenver Intl
11h 42m
1 stop
SJU11:00 pmSan Juan Luis Munoz Marin Intl
May 13
SJU1:50 pmSan Juan Luis Munoz Marin Intl
11h 11m
1 stop
DEN11:01 pmDenver Intl
$303
Find similar
JetBlue
Dec 15
DEN11:59 pmDenver Intl
9h 45m
1 stop
SJU12:44 pmSan Juan Luis Munoz Marin Intl
Jan 2
SJU6:01 amSan Juan Luis Munoz Marin Intl
13h 51m
1 stop
DEN4:52 pmDenver Intl
$389
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 December 7, 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

Wed 12/17

11:25 pm-2:16 pm

1 stop11h 51m

San Juan Luis Munoz Marin Intl

Sun 12/21

4:09 pm-11:04 pm

1 stop9h 55m

$276

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 1/21

7:30 am-11:33 pm

2 stops13h 03m

San Juan Luis Munoz Marin Intl

Tue 1/27

8:00 am-5:36 pm

1 stop12h 36m

$277

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 1/9

6:10 am-8:10 pm

1 stop11h 00m

San Juan Luis Munoz Marin Intl

Sat 1/17

4:35 pm-9:26 pm

1 stop31h 51m

$279

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 12/31

11:06 pm-2:16 pm

1 stop12h 10m

San Juan Luis Munoz Marin Intl

Wed 1/7

7:05 pm-8:00 am

1 stop15h 55m

$280

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 12/22

3:45 pm-6:34 am

1 stop11h 49m

San Juan Luis Munoz Marin Intl

Tue 12/23

3:14 pm-9:49 pm

1 stop9h 35m

$281

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 1/15

11:59 pm-12:42 pm

1 stop9h 43m

San Juan Luis Munoz Marin Intl

Sat 1/24

8:00 am-5:36 pm

1 stop12h 36m

$282

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 12/28

12:16 am-3:01 pm

1 stop11h 45m

San Juan Luis Munoz Marin Intl

Wed 1/7

7:05 pm-8:00 am

1 stop15h 55m

$283

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 2/8

9:41 am-12:34 am

1 stop11h 53m

San Juan Luis Munoz Marin Intl

Sun 2/15

7:00 am-5:47 pm

1 stop13h 47m

$284

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 1/9

1:42 pm-1:21 am

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Fri 1/16

3:58 am-5:54 pm

1 stop16h 56m

$285

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 1/23

1:28 pm-11:59 pm

1 stop7h 31m

San Juan Luis Munoz Marin Intl

Fri 1/30

8:25 am-9:45 pm

2 stops16h 20m

$286

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 $363.

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 $649. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $788.

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 $689 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 weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $491 when searching weeks 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 $333 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 7h 31m.

  • 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
3,089 reviews
Search Frontier flights
JetBluePriceFrom $299Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights
DeltaPriceFrom $381Free CancellationRating
7.9
8,013 reviews
Search Delta flights
SouthwestPriceFrom $446Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
United AirlinesPriceFrom $487Free CancellationRating
7.4
9,073 reviews
Search United Airlines flights
American AirlinesPriceFrom $488Free CancellationRating
7.2
11,044 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