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Cheap flights from Denver to San Juan from $87

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 5/19. 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
7:00 am - 4:43 pm
DEN
-
SJU
7h 43m
1 stop
Frontier Logo
6:41 pm - 4:05 pm
SJU
-
DEN
23h 24m
2 stops
$259Frontier
Tue, May 12 - Tue, Jun 2
Frontier Logo
6:00 am - 11:29 pm
DEN
-
SJU
15h 29m
1 stop
Frontier Logo
6:00 am - 3:18 pm
SJU
-
DEN
11h 18m
1 stop
$260Frontier
Sat, Aug 1 - Tue, Aug 4
Frontier Logo
7:15 am - 11:57 pm
DEN
-
SJU
14h 42m
1 stop
Frontier Logo
12:00 pm - 10:24 pm
SJU
-
DEN
12h 24m
2 stops
$261Frontier
Mon, May 18 - Wed, May 27
Frontier Logo
11:59 pm - 2:01 pm
DEN
-
SJU
12h 02m
1 stop
Frontier Logo
12:00 pm - 10:24 pm
SJU
-
DEN
12h 24m
2 stops
$262Frontier
Mon, May 18 - Wed, May 27
Frontier Logo
11:40 pm - 12:28 am
DEN
-
SJU
22h 48m
1 stop
Frontier Logo
4:05 pm - 11:00 pm
SJU
-
DEN
8h 55m
1 stop
$263Frontier
Tue, Jul 28 - Mon, Aug 3
Frontier Logo
4:54 pm - 6:24 am
DEN
-
SJU
11h 30m
1 stop
Frontier Logo
6:30 am - 11:04 pm
SJU
-
DEN
18h 34m
1 stop
$264Frontier
Fri, May 29 - Sat, Jun 6
Frontier Logo
11:49 pm - 11:29 pm
DEN
-
SJU
21h 40m
1 stop
Frontier Logo
4:05 pm - 11:00 pm
SJU
-
DEN
8h 55m
1 stop
$265Frontier
Wed, Jul 1 - Thu, Jul 30
Frontier Logo
6:03 am - 11:59 pm
DEN
-
SJU
15h 56m
2 stops
Frontier Logo
6:41 pm - 8:57 am
SJU
-
DEN
16h 16m
1 stop
$266Frontier
Tue, May 26 - Wed, May 27
Frontier Logo
11:59 pm - 3:50 pm
DEN
-
SJU
13h 51m
1 stop
Frontier Logo
6:30 am - 11:44 pm
SJU
-
DEN
19h 14m
2 stops
$268Frontier
Sun, May 10 - Sat, May 16
Frontier Logo
11:40 pm - 12:28 am
DEN
-
SJU
22h 48m
1 stop
Frontier Logo
6:31 pm - 3:18 pm
SJU
-
DEN
22h 47m
1 stop
$269Frontier
Tue, Jul 28 - Fri, Aug 7

Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
May 12
DEN7:00 amDenver Intl
7h 43m
1 stop
SJU4:43 pmSan Juan Luis Munoz Marin Intl
Jun 2
SJU6:41 pmSan Juan Luis Munoz Marin Intl
23h 24m
2 stops
DEN4:05 pmDenver Intl
$259
Frontier
Aug 1
DEN6:00 amDenver Intl
15h 29m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
Aug 3
SJU4:05 pmSan Juan Luis Munoz Marin Intl
8h 55m
1 stop
DEN11:00 pmDenver Intl
$260
Frontier
May 1
DEN9:55 amDenver Intl
11h 34m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
May 9
SJU6:30 amSan Juan Luis Munoz Marin Intl
18h 34m
1 stop
DEN11:04 pmDenver Intl
$261

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 April 28, 2026.
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

Cheapest round-trip

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 5/12

7:00 am-4:43 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

Tue 6/2

6:41 pm-4:05 pm

2 stops23h 24m

$259

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 8/1

6:00 am-11:29 pm

1 stop15h 29m

San Juan Luis Munoz Marin Intl

Tue 8/4

6:00 am-3:18 pm

1 stop11h 18m

$260

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 5/18

7:15 am-11:57 pm

1 stop14h 42m

San Juan Luis Munoz Marin Intl

Wed 5/27

12:00 pm-10:24 pm

2 stops12h 24m

$261
Quickest round-trip

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 5/18

11:59 pm-2:01 pm

1 stop12h 02m

San Juan Luis Munoz Marin Intl

Wed 5/27

12:00 pm-10:24 pm

2 stops12h 24m

$262

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 7/28

11:40 pm-12:28 am

1 stop22h 48m

San Juan Luis Munoz Marin Intl

Mon 8/3

4:05 pm-11:00 pm

1 stop8h 55m

$263

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 5/29

4:54 pm-6:24 am

1 stop11h 30m

San Juan Luis Munoz Marin Intl

Sat 6/6

6:30 am-11:04 pm

1 stop18h 34m

$264

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 7/1

11:49 pm-11:29 pm

1 stop21h 40m

San Juan Luis Munoz Marin Intl

Thu 7/30

4:05 pm-11:00 pm

1 stop8h 55m

$265

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 5/26

6:03 am-11:59 pm

2 stops15h 56m

San Juan Luis Munoz Marin Intl

Wed 5/27

6:41 pm-8:57 am

1 stop16h 16m

$266

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 5/10

11:59 pm-3:50 pm

1 stop13h 51m

San Juan Luis Munoz Marin Intl

Sat 5/16

6:30 am-11:44 pm

2 stops19h 14m

$268

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 7/28

11:40 pm-12:28 am

1 stop22h 48m

San Juan Luis Munoz Marin Intl

Fri 8/7

6:31 pm-3:18 pm

1 stop22h 47m

$269

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 December, then July is your next best option. Flight prices from Denver to San Juan during July average around $145.

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 Tuesday when prices can be found for as low as $606. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $769.

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 from Denver 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 $503 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 $326 on momondo.

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 52m

Direct flights

Every day

Airports in San Juan

2 airports
The fastest flight from Denver to San Juan takes 5h 52m
Direct flights go from Denver to San Juan every day.
There are 2 airports in San Juan. From Denver there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

Frequently asked questions about flying from Denver to San Juan

  • 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 5h 52m.

  • 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 $186Free CancellationRating
5.6
2,970 reviews
Search Frontier flights
JetBluePriceFrom $272Free CancellationRating
7.1
2,968 reviews
Search JetBlue flights
DeltaPriceFrom $353Free CancellationRating
7.9
8,467 reviews
Search Delta flights
SouthwestPriceFrom $376Free CancellationRating
8.0
4,315 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.1
11,680 reviews
Search American Airlines flights
United AirlinesPriceFrom $487Free CancellationRating
7.4
9,680 reviews
Search United 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