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Puerto Rico

$134+ Cheap flights from Denver (DEN) to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SJU
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
1 adult, Economy
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Cheap flight deals from Denver to Puerto Rico

Keep the following information in mind while searching for Denver to Puerto Rico flight deals. Data was last updated August 7, 2025.

Round-trip from

$265
(Cheapflightsfares)

One-way from

$134
(Frontier)

Popular in

December

Cheapest in

October

Average price

$338

Good round-trip deal

$612 or less

Good one-way deal

$513 or less
From Denver Intl to Puerto Rico
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One-way flight from Denver Intl to Puerto Rico
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Highest demand for flights based on searches. 19% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Denver Intl to Puerto Rico.
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Price to beat on a one-way flight from Denver Intl to Puerto Rico.
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Find flight deals from Denver to Puerto Rico

Cheapest flights from Denver to Puerto Rico
Explore the most affordable flight options available from Denver to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:00 amDEN - SJU
1 stop7h 37mFrontier
Fri 10/244:42 pmSJU - DEN
1 stop8h 34mFrontier
Deal found 8/6$265
This Frontier deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1211:59 pmDEN - SJU
1 stop13h 23mFrontier
Thu 9/1812:28 amSJU - DEN
1 stop10h 29mFrontier
Deal found 8/6$268
This Frontier deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3012:19 amDEN - PSE
1 stop8h 39mFrontier
Fri 9/510:15 amPSE - DEN
1 stop9h 40mFrontier
Deal found 8/5$268
This Priceline deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:04 amDEN - SJU
1 stop24h 30mFrontier
Wed 9/241:06 pmSJU - DEN
1 stop21h 51mFrontier
Deal found 8/6$269
This Priceline deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:00 pmDEN - BQN
1 stop19h 02mFrontier
Mon 12/157:58 pmBQN - DEN
1 stop15h 26mFrontier
Deal found 8/6$269
This Priceline deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:00 amDEN - PSE
1 stop22h 30mFrontier
Thu 9/1110:15 amPSE - DEN
1 stop23h 54mFrontier
Deal found 8/6$269
This Cheapflightsfares deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:00 amDEN - SJU
1 stop7h 52mFrontier
Fri 8/2212:59 amSJU - DEN
1 stop9h 39mFrontier
Deal found 8/6$272
This Priceline deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:04 amDEN - SJU
1 stop18h 27mFrontier
Tue 9/163:39 amSJU - DEN
1 stop8h 35mFrontier
Deal found 8/6$274
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:34 amDEN - SJU
1 stop17h 30mFrontier
Sun 11/910:09 pmSJU - DEN
1 stop13h 24mFrontier
Deal found 8/6$275
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:04 amDEN - PSE
1 stop7h 40mFrontier
Mon 11/310:34 amPSE - DEN
1 stop15h 42mFrontier
Deal found 8/6$275
This Frontier deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:55 pmDEN - SJU
1 stop12h 57mFrontier
Tue 9/163:39 amSJU - DEN
1 stop8h 35mFrontier
Deal found 8/6$276
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:34 amDEN - SJU
1 stop29h 36mFrontier
Sun 11/1610:09 pmSJU - DEN
1 stop13h 24mFrontier
Deal found 8/6$278

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Puerto Rico 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, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Denver to Puerto Rico that are best for you.

Fly from

Denver

Fly to

Puerto Rico

Route

Depart

Return

Price

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 10/17

6:00 am-3:37 pm

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Fri 10/24

4:42 pm-11:16 pm

1 stop8h 34m

$265

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 9/12

11:59 pm-3:22 pm

1 stop13h 23m

San Juan Luis Munoz Marin Intl

Thu 9/18

12:28 am-8:57 am

1 stop10h 29m

$268

DenverPonce

DEN - PSE

DENPSE

Denver Intl

Sat 8/30

12:19 am-10:58 am

1 stop8h 39m

Ponce Mercedita

Fri 9/5

10:15 am-5:55 pm

1 stop9h 40m

$268

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 9/14

12:04 am-2:34 am

1 stop24h 30m

San Juan Luis Munoz Marin Intl

Wed 9/24

1:06 pm-8:57 am

1 stop21h 51m

$269

DenverPonce

DEN - PSE

DENPSE

Denver Intl

Thu 9/4

9:00 am-9:30 am

1 stop22h 30m

Ponce Mercedita

Thu 9/11

10:15 am-8:09 am

1 stop23h 54m

$269

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 8/14

6:00 am-3:52 pm

1 stop7h 52m

San Juan Luis Munoz Marin Intl

Fri 8/22

12:59 am-8:38 am

1 stop9h 39m

$272

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 9/8

12:04 am-8:31 pm

1 stop18h 27m

San Juan Luis Munoz Marin Intl

Tue 9/16

3:39 am-10:14 am

1 stop8h 35m

$274

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 8/29

11:59 pm-5:50 pm

1 stop15h 51m

San Juan Luis Munoz Marin Intl

Sat 9/6

4:42 pm-8:09 am

1 stop17h 27m

$275

DenverPonce

DEN - PSE

DENPSE

Denver Intl

Thu 10/30

12:04 am-9:44 am

1 stop7h 40m

Ponce Mercedita

Mon 11/3

10:34 am-11:16 pm

1 stop15h 42m

$275

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 9/13

6:55 pm-9:52 am

1 stop12h 57m

San Juan Luis Munoz Marin Intl

Tue 9/16

3:39 am-10:14 am

1 stop8h 35m

$276

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

Showing 1-10 of 40 results
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Best time to book a flight from Denver to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Puerto Rico

What is the cheapest month to book a flight from Denver to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Denver to Puerto Rico (average of $254). Flying from Denver to Puerto Rico in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to PR?

Find hourly flight availability from Denver to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 7, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Puerto Rico as you normally would.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated August 7, 2025.
Read through reviews of airlines operating flights from Denver to Puerto Rico, such as Alaska Airlines, Southwest, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Southwest
8.0
Very good
4,247 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
JetBlue
7.2
Good
2,915 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Frontier
5.9
Fair
3,230 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Find useful and relevant information for your journey from Denver to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Puerto Rico?

    For a flight from Denver to Puerto Rico, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city.

  • What are the cheapest airlines to fly from Denver to Puerto Rico one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $134. JetBlue flights start at $249 while deals on United Airlines start at $266 one-way.

  • What are the most popular routes from Denver to Puerto Rico?

    The most popular route from Denver to Puerto Rico is Denver Intl - San Juan Luis Munoz Marin Intl. You may also consider Denver Intl - Aguadilla Borinquen or Denver Intl - Ponce Mercedita.

  • What are the cheapest flights from Denver to Puerto Rico?

    The cheapest flight price from Denver to Puerto Rico is $266. On average you can expect to pay $632. The most popular route, (Denver Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $268.

  • Can I find deals for flights from Denver to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Denver to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Puerto Rico.

  • Can I find deals for business class flights from Denver to Puerto Rico?

    Yes. Cheapflights offers flight deals from Denver to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Denver to Puerto Rico (average of $254). Flying from Denver to Puerto Rico in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Denver to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Luis Munoz Marin Intl flights
Denver to Punta Cana flights
Denver to Saint Thomas Island flights
Denver to Oranjestad flights
Denver to Montego Bay flights
Denver to Nassau flights
Denver to George Town flights
Denver to Christiansted flights
Denver to Willemstad flights
Denver to Santo Domingo flights
Denver to Simpson Bay flights
Denver to Providenciales flights
Denver to Puerto Plata flights
Denver to Castries flights
Denver to Santiago de los Caballeros flights
Denver to Road Town flights
Denver to Kingston flights
Denver to Bridgetown flights
Denver to Kralendijk flights
Denver to Freeport flights
Colorado Springs to Luis Munoz Marin Intl flights
Denver to St. John's flights
Denver to Castries flights
Denver to St. George's flights
Colorado Springs to Montego Bay flights
Grand Junction to Luis Munoz Marin Intl flights
Denver to Port of Spain flights
Grand Junction to Saint Thomas Island flights
Grand Junction to Simpson Bay flights
Aspen to Luis Munoz Marin Intl flights
Vail to Luis Munoz Marin Intl flights
Denver to The Valley flights
Denver to Aguadilla flights
Denver to Roseau flights
Denver to Georgetown flights
Denver to Basseterre flights
Denver to Gregory Town flights
Denver to Newcastle flights
Denver to Fort-de-France flights
Denver to Kingstown flights
Denver to Pointe-à-Pitre flights
Colorado Springs to Saint Thomas Island flights
Denver to Ponce flights
Colorado Springs to Bridgetown flights
Denver to Marsh Harbour flights
Gunnison to Luis Munoz Marin Intl flights
Colorado Springs to Nassau flights

Top 6 airlines flying from Denver to Puerto Rico

Discover the top 6 airlines that operate flights from Denver to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$293FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$276Average$425FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$446Average$586FlexibilityNo cancel feeOn-time63%
DeltaCheapest$475Average$662FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$485Average$686FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$491Average$584FlexibilityNo cancel feeOn-time71%

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