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Cheap flights from Denver to San Juan from $132

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 9/14. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:59 pm - 11:06 amDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
9h 07m1 stop Orlando
Frontier Logo
6:35 am - 10:10 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
17h 35m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
$378Frontier
Tue, Aug 25 - Fri, Aug 28
Frontier Logo
6:56 pm - 10:18 amDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
13h 22m1 stop Miami
Frontier Logo
4:39 pm - 8:08 amSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
17h 29m1 stop Tampa
$379Frontier
Sun, Sep 13 - Wed, Sep 30
Multiple Airlines Logo
10:25 am - 2:50 amDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
13h 25m1 stop Orlando
Multiple Airlines Logo
3:50 pm - 11:08 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
10h 18m1 stop New York John F Kennedy Intl
$389Multiple Airlines
Wed, Nov 11 - Thu, Nov 19
Multiple Airlines Logo
11:59 pm - 6:37 pmDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
15h 38m1 stop Orlando
Multiple Airlines Logo
3:50 pm - 11:08 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
10h 18m1 stop New York John F Kennedy Intl
$389Multiple Airlines
Tue, Nov 10 - Thu, Nov 19
Southwest Logo
7:00 am - 11:20 pmDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
13h 20m1 stop Baltimore/Washington
Southwest Logo
10:35 pm - 10:50 amSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
15h 15m1 stop Orlando
$416Southwest
Wed, Nov 18 - Wed, Nov 25
Southwest Logo
6:30 am - 10:20 pmDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
12h 50m1 stop Tampa
Southwest Logo
5:40 am - 1:10 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
10h 30m2 stops Orlando Atlanta Hartsfield-Jackson
$416Southwest
Wed, Nov 11 - Wed, Nov 18
JetBlue Logo
12:55 pm - 1:52 amDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
9h 57m1 stop New York John F Kennedy Intl
JetBlue Logo
3:00 pm - 10:59 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
10h 59m1 stop New York John F Kennedy Intl
$418JetBlue
Fri, Dec 4 - Fri, Dec 11
JetBlue Logo
11:35 am - 11:59 pmDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
9h 24m1 stop New York John F Kennedy Intl
JetBlue Logo
6:01 am - 12:45 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
9h 44m1 stop Boston Logan Intl
$448JetBlue
Tue, Feb 2 - Tue, Feb 9
United Airlines Logo
9:46 am - 6:25 pmDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
5h 39mnonstop
United Airlines Logo
2:21 pm - 6:07 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
6h 46mnonstop
$577United Airlines
Mon, Nov 9 - Mon, Nov 16
United Airlines Logo
9:45 am - 6:25 pmDEN  Denver Intl-SJU San Juan Luis Munoz Marin Intl
5h 40mnonstop
United Airlines Logo
2:25 pm - 6:12 pmSJU  San Juan Luis Munoz Marin Intl-DEN Denver Intl
6h 47mnonstop
$577United Airlines
Mon, Jan 18 - Wed, Jan 27

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Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
Aug 25
DEN11:59 pmDenver Intl
9h 07m
1 stop
SJU11:06 amSan Juan Luis Munoz Marin Intl
Aug 28
SJU6:35 amSan Juan Luis Munoz Marin Intl
17h 35m
2 stops
DEN10:10 pmDenver Intl
$378
Frontier
Sep 25
DEN6:40 amDenver Intl
9h 03m
1 stop
SJU5:43 pmSan Juan Luis Munoz Marin Intl
Sep 29
SJU6:42 pmSan Juan Luis Munoz Marin Intl
15h 10m
1 stop
DEN7:52 amDenver Intl
$379
Frontier
Oct 10
DEN11:48 pmDenver Intl
12h 58m
1 stop
SJU2:46 pmSan Juan Luis Munoz Marin Intl
Oct 17
SJU1:59 amSan Juan Luis Munoz Marin Intl
23h 05m
1 stop
DEN11:04 pmDenver Intl
$380

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 August 9, 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 Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Tue 8/25

11:59 pm-11:06 am

1 stop9h 07m

San Juan Luis Munoz Marin Intl

Fri 8/28

6:35 am-10:10 pm

2 stops17h 35m

$378

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Sun 9/13

6:56 pm-10:18 am

1 stop13h 22m

San Juan Luis Munoz Marin Intl

Wed 9/30

4:39 pm-8:08 am

1 stop17h 29m

$379

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Wed 11/11

10:25 am-2:50 am

1 stop13h 25m

San Juan Luis Munoz Marin Intl

Thu 11/19

3:50 pm-11:08 pm

1 stop10h 18m

$389

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Tue 11/10

11:59 pm-6:37 pm

1 stop15h 38m

San Juan Luis Munoz Marin Intl

Thu 11/19

3:50 pm-11:08 pm

1 stop10h 18m

$389

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Wed 11/18

7:00 am-11:20 pm

1 stop13h 20m

San Juan Luis Munoz Marin Intl

Wed 11/25

10:35 pm-10:50 am

1 stop15h 15m

$416

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Wed 11/11

6:30 am-10:20 pm

1 stop12h 50m

San Juan Luis Munoz Marin Intl

Wed 11/18

5:40 am-1:10 pm

2 stops10h 30m

$416

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Fri 12/4

12:55 pm-1:52 am

1 stop9h 57m

San Juan Luis Munoz Marin Intl

Fri 12/11

3:00 pm-10:59 pm

1 stop10h 59m

$418

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Tue 2/2

11:35 am-11:59 pm

1 stop9h 24m

San Juan Luis Munoz Marin Intl

Tue 2/9

6:01 am-12:45 pm

1 stop9h 44m

$448
Quickest round-trip

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Mon 11/9

9:46 am-6:25 pm

Nonstop5h 39m

San Juan Luis Munoz Marin Intl

Mon 11/16

2:21 pm-6:07 pm

Nonstop6h 46m

$577

DenverSan Juan

DEN Denver Intl - SJU San Juan Luis Munoz Marin Intl

DENSJU

Denver Intl

Mon 1/18

9:45 am-6:25 pm

Nonstop5h 40m

San Juan Luis Munoz Marin Intl

Wed 1/27

2:25 pm-6:12 pm

Nonstop6h 47m

$577

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $376 to $595.
The lowest price recently found on this route was $378.

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in September, then April is your next best option. Flight prices from Denver to San Juan during April average around $438.

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 $770.

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 $538 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 $450 on momondo.

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

There are 4 cabin classes available to choose from on Denver 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 36m

Direct flights

Every day

Airports in San Juan

2 airports
The fastest flight from Denver to San Juan takes 5h 36m
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 36m.

  • 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 $184Free CancellationRating
5.6
2,715 reviews
Search Frontier flights
JetBluePriceFrom $272Free CancellationRating
7.1
3,030 reviews
Search JetBlue flights
DeltaPriceFrom $353Free CancellationRating
7.8
8,497 reviews
Search Delta flights
SouthwestPriceFrom $376Free CancellationRating
8.0
4,214 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.1
11,897 reviews
Search American Airlines flights
United AirlinesPriceFrom $489Free CancellationRating
7.4
10,097 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.

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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