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Cheap flights from Denver to San Juan from $112

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 1/24. 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
6:00 am - 5:00 pm
DEN
-
SJU
8h 00m
1 stop
Frontier Logo
11:07 am - 10:59 pm
SJU
-
DEN
14h 52m
1 stop
$203Frontier
Sat, Jan 31 - Wed, Feb 11
Frontier Logo
6:00 am - 2:25 am
DEN
-
SJU
17h 25m
1 stop
Frontier Logo
8:53 pm - 9:31 am
SJU
-
DEN
15h 38m
1 stop
$204Frontier
Mon, Feb 23 - Sat, Feb 28
Frontier Logo
6:32 pm - 10:24 am
DEN
-
SJU
12h 52m
1 stop
Frontier Logo
4:36 pm - 8:30 am
SJU
-
DEN
18h 54m
1 stop
$205Frontier
Thu, Jan 29 - Sat, Feb 7
Frontier Logo
12:59 am - 3:06 pm
DEN
-
SJU
11h 07m
1 stop
Frontier Logo
12:05 pm - 11:13 pm
SJU
-
DEN
13h 08m
1 stop
$207Frontier
Mon, Mar 2 - Tue, Mar 17
Frontier Logo
11:59 pm - 1:27 pm
DEN
-
SJU
10h 28m
1 stop
Frontier Logo
4:17 pm - 9:33 pm
SJU
-
DEN
32h 16m
2 stops
$208Frontier
Sat, Feb 14 - Fri, Feb 20
Frontier Logo
12:59 am - 3:06 pm
DEN
-
SJU
11h 07m
1 stop
Frontier Logo
6:39 pm - 8:26 am
SJU
-
DEN
15h 47m
1 stop
$209Frontier
Mon, Mar 2 - Tue, Mar 24
Frontier Logo
12:59 am - 3:06 pm
DEN
-
SJU
11h 07m
1 stop
Frontier Logo
9:58 pm - 8:26 am
SJU
-
DEN
12h 28m
1 stop
$211Frontier
Mon, Mar 2 - Mon, Mar 16
Frontier Logo
6:00 am - 2:25 am
DEN
-
SJU
17h 25m
1 stop
Frontier Logo
10:55 am - 11:04 pm
SJU
-
DEN
14h 09m
1 stop
$213Frontier
Mon, Mar 2 - Thu, Mar 19
Frontier Logo
7:33 am - 1:05 am
DEN
-
SJU
14h 32m
1 stop
Frontier Logo
6:39 pm - 8:26 am
SJU
-
DEN
15h 47m
1 stop
$214Frontier
Sat, Feb 28 - Wed, Mar 18
Frontier Logo
7:33 am - 1:05 am
DEN
-
SJU
14h 32m
1 stop
Frontier Logo
3:53 am - 9:41 pm
SJU
-
DEN
20h 48m
2 stops
$215Frontier
Mon, Feb 23 - Mon, Mar 2

Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
Jan 31
DEN6:00 amDenver Intl
8h 00m
1 stop
SJU5:00 pmSan Juan Luis Munoz Marin Intl
Feb 11
SJU11:07 amSan Juan Luis Munoz Marin Intl
14h 52m
1 stop
DEN10:59 pmDenver Intl
$203
Frontier
Feb 23
DEN6:00 amDenver Intl
17h 25m
1 stop
SJU2:25 amSan Juan Luis Munoz Marin Intl
Feb 28
SJU8:53 pmSan Juan Luis Munoz Marin Intl
15h 38m
1 stop
DEN9:31 amDenver Intl
$204
Frontier
Jan 29
DEN6:32 pmDenver Intl
12h 52m
1 stop
SJU10:24 amSan Juan Luis Munoz Marin Intl
Feb 7
SJU4:36 pmSan Juan Luis Munoz Marin Intl
18h 54m
1 stop
DEN8:30 amDenver Intl
$205

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 January 17, 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

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 1/31

6:00 am-5:00 pm

1 stop8h 00m

San Juan Luis Munoz Marin Intl

Wed 2/11

11:07 am-10:59 pm

1 stop14h 52m

$203

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 2/23

6:00 am-2:25 am

1 stop17h 25m

San Juan Luis Munoz Marin Intl

Sat 2/28

8:53 pm-9:31 am

1 stop15h 38m

$204

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 1/29

6:32 pm-10:24 am

1 stop12h 52m

San Juan Luis Munoz Marin Intl

Sat 2/7

4:36 pm-8:30 am

1 stop18h 54m

$205

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/2

12:59 am-3:06 pm

1 stop11h 07m

San Juan Luis Munoz Marin Intl

Tue 3/17

12:05 pm-11:13 pm

1 stop13h 08m

$207

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 2/14

11:59 pm-1:27 pm

1 stop10h 28m

San Juan Luis Munoz Marin Intl

Fri 2/20

4:17 pm-9:33 pm

2 stops32h 16m

$208

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/2

12:59 am-3:06 pm

1 stop11h 07m

San Juan Luis Munoz Marin Intl

Tue 3/24

6:39 pm-8:26 am

1 stop15h 47m

$209

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/2

12:59 am-3:06 pm

1 stop11h 07m

San Juan Luis Munoz Marin Intl

Mon 3/16

9:58 pm-8:26 am

1 stop12h 28m

$211

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/2

6:00 am-2:25 am

1 stop17h 25m

San Juan Luis Munoz Marin Intl

Thu 3/19

10:55 am-11:04 pm

1 stop14h 09m

$213

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 2/28

7:33 am-1:05 am

1 stop14h 32m

San Juan Luis Munoz Marin Intl

Wed 3/18

6:39 pm-8:26 am

1 stop15h 47m

$214

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 2/23

7:33 am-1:05 am

1 stop14h 32m

San Juan Luis Munoz Marin Intl

Mon 3/2

3:53 am-9:41 pm

2 stops20h 48m

$215

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 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 $358.

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 $625. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $767.

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 $475 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 $323 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

2 airports
The fastest flight from Denver to San Juan takes 5h 40m
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

  • 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 40m.

  • 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
5.7
3,057 reviews
Search Frontier flights
JetBluePriceFrom $299Free CancellationRating
7.2
2,890 reviews
Search JetBlue flights
DeltaPriceFrom $328Free CancellationRating
7.9
8,066 reviews
Search Delta flights
SouthwestPriceFrom $449Free CancellationRating
8.0
4,261 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.2
11,153 reviews
Search American Airlines flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
9,171 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