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Luis Munoz Marin Intl

$133+ Cheap flights from Denver (DEN) to Luis Munoz Marin Intl (SJU)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SJU
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to San Juan Luis Munoz Marin Intl are usually found in August or October, booked 22 days in advance, depart on a Thursday or Monday and return on a Thursday

Cheap flight deals from Denver to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$268
(Frontier)

One-way from

$133
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$423

Good round-trip deal

$576 or less

Good one-way deal

$323 or less
From Denver Intl to San Juan Luis Munoz Marin Intl
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One-way flight from Denver Intl to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 17% potential increase in price ($97 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Denver Intl to San Juan Luis Munoz Marin Intl.
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Price to beat on a one-way flight from Denver Intl to San Juan Luis Munoz Marin Intl.
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Find flight deals from Denver to Luis Munoz Marin Intl

Cheapest flights from Denver to Luis Munoz Marin Intl
Explore the most affordable flight options available from Denver to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Frontier deal was found by Cheapflights users on 9/14. 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.
Thu 10/2311:45 pmDEN - SJU
1 stop9h 12mFrontier
Mon 10/274:16 pmSJU - DEN
1 stop10h 35mFrontier
Deal found 9/14$268
This Frontier deal was found by Cheapflights users on 9/14. 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 11/812:16 amDEN - SJU
1 stop8h 03mFrontier
Wed 11/199:00 amSJU - DEN
1 stop12h 26mFrontier
Deal found 9/14$269
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:19 amDEN - SJU
1 stop13h 15mFrontier
Fri 10/312:28 amSJU - DEN
1 stop10h 29mFrontier
Deal found 9/14$270
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Tue 11/1812:16 amDEN - SJU
1 stop8h 03mFrontier
Thu 11/276:01 amSJU - DEN
1 stop9h 28mFrontier
Deal found 9/14$272
This Frontier deal was found by Cheapflights users on 9/14. 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 10/179:19 pmDEN - SJU
2 stops16h 05mFrontier
Fri 10/2411:48 amSJU - DEN
2 stops13h 11mFrontier
Deal found 9/14$273
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/188:13 pmDEN - SJU
1 stop16h 33mMultiple Airlines
Thu 12/1111:02 amSJU - DEN
1 stop8h 46mMultiple Airlines
Deal found 9/14$275
This Priceline deal was found by Cheapflights users on 9/14. 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.
Tue 10/1412:36 amDEN - SJU
1 stop23h 54mFrontier
Sun 10/195:30 amSJU - DEN
1 stop29h 03mFrontier
Deal found 9/14$276
This Frontier deal was found by Cheapflights users on 9/14. 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.
Mon 10/2712:59 amDEN - SJU
2 stops14h 55mFrontier
Thu 10/307:30 amSJU - DEN
1 stop9h 23mFrontier
Deal found 9/14$278
This Frontier deal was found by Cheapflights users on 9/14. 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 10/2512:59 amDEN - SJU
1 stop11h 10mFrontier
Wed 10/299:00 amSJU - DEN
1 stop11h 26mFrontier
Deal found 9/14$279
This Frontier deal was found by Cheapflights users on 9/14. 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.
Tue 10/288:41 pmDEN - SJU
2 stops19h 13mFrontier
Fri 10/3110:39 pmSJU - DEN
1 stop12h 21mFrontier
Deal found 9/14$280
This Frontier deal was found by Cheapflights users on 9/14. 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 11/18:41 pmDEN - SJU
2 stops19h 13mFrontier
Thu 11/67:30 amSJU - DEN
1 stop10h 23mFrontier
Deal found 9/14$281
This Frontier deal was found by Cheapflights users on 9/16. 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 11/157:14 pmDEN - SJU
2 stops16h 28mFrontier
Wed 11/199:00 amSJU - DEN
1 stop12h 26mFrontier
Deal found 9/16$282

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Luis Munoz Marin Intl 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 September 16, 2025.
Use the filters below to find and compare flights from Denver to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Denver

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/2

11:59 pm-3:30 pm

1 stop12h 31m

San Juan Luis Munoz Marin Intl

Thu 3/12

12:15 pm-9:49 pm

1 stop11h 34m

$340

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 10/19

10:39 pm-12:27 pm

1 stop11h 48m

San Juan Luis Munoz Marin Intl

Wed 10/22

1:00 pm-10:43 pm

1 stop11h 43m

$340

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 1/11

12:00 pm-11:55 pm

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Wed 1/21

2:00 pm-11:04 pm

1 stop12h 04m

$423

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 3/13

9:35 am-10:47 pm

1 stop11h 12m

San Juan Luis Munoz Marin Intl

Wed 3/18

5:15 am-12:51 pm

1 stop9h 36m

$456

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 11/14

12:05 pm-1:25 am

2 stops10h 20m

San Juan Luis Munoz Marin Intl

Wed 11/19

8:55 am-4:40 pm

2 stops10h 45m

$460

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 11/15

6:00 am-9:00 pm

1 stop12h 00m

San Juan Luis Munoz Marin Intl

Tue 11/18

2:05 am-3:43 pm

2 stops16h 38m

$500

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 10/17

9:50 am-5:30 pm

Nonstop5h 40m

San Juan Luis Munoz Marin Intl

Tue 10/21

2:00 pm-6:10 pm

Nonstop6h 10m

$506

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 11/14

9:45 am-6:25 pm

Nonstop5h 40m

San Juan Luis Munoz Marin Intl

Wed 11/19

8:10 am-4:30 pm

1 stop11h 20m

$511

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 10/23

12:42 pm-11:56 pm

1 stop9h 14m

San Juan Luis Munoz Marin Intl

Tue 10/28

1:06 pm-9:41 pm

1 stop10h 35m

$515

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 10/27

6:00 am-4:33 pm

1 stop8h 33m

San Juan Luis Munoz Marin Intl

Mon 11/3

2:06 pm-9:41 pm

1 stop10h 35m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 19 results
1
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The best insider tips for Denver to San Juan Luis Munoz Marin Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to San Juan Luis Munoz Marin Intl Airport trip
Airports
DEN

Use the A Line train for a quick 37-minute ride from Denver Union Station to DEN, avoiding traffic and parking fees.

Read more about DENby Emily Zemler
SJU

Opt for rideshare services like Uber at SJU for convenience and cashless payments, especially if taxis claim broken card machines.

Read more about SJUby Brandon Schultz
Our travel experts
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more
Brandon Schultz

Brandon Schultz

Expert on SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Denver to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Denver to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Luis Munoz Marin Intl. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Denver to San Juan Luis Munoz Marin Intl Airport, you should look to book at least 22 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Denver to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Denver to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Denver to San Juan Luis Munoz Marin Intl Airport 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 SJU?

Find hourly flight availability from Denver to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

It’s optimal to fly from Denver to San Juan Luis Munoz Marin Intl Airport in the afternoon. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Denver to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Denver to Luis Munoz Marin Intl. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Denver to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated September 16, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Denver to San Juan Luis Munoz Marin Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Denver to Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl?

    If you book a flight to San Juan Luis Munoz Marin Intl from Denver, you will be flying from Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver. There are 0 flights from Denver Intl to San Juan Luis Munoz Marin Intl per day from 6 different airlines.

  • How long is the flight from Denver to San Juan Luis Munoz Marin Intl Airport?

    JetBlue and Southwest can get you from Denver to San Juan Luis Munoz Marin Intl Airport in just under 10h 20m. Your travel time can differ by up to 2h 11m. The distance from Denver to San Juan Luis Munoz Marin Intl Airport is about 2730 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Denver to San Juan Luis Munoz Marin Intl Airport round-trip?

    Cheapflights users have booked flights from Denver to San Juan Luis Munoz Marin Intl Airport round-trip from $143. Other airlines that can offer you cheap pricing are JetBlue, from $327, and Delta, from $381. Frontier is priced at 69% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Denver to San Juan Luis Munoz Marin Intl Airport?

    The cheapest flight price from Denver to San Juan Luis Munoz Marin Intl Airport is $303. On average you can expect to pay $494. The most popular route, (Denver Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $266.

  • Where are the most common layover locations when flying from Denver to San Juan Luis Munoz Marin Intl Airport?

    Denver to San Juan Luis Munoz Marin Intl Airport flights have a layover in Orlando most often. Miami sees the second most layovers for non-direct flights flying from Denver to San Juan Luis Munoz Marin Intl Airport. Charlotte follows Miami in terms of the most frequent layover location on Denver to San Juan Luis Munoz Marin Intl Airport flights.

  • What are some popular things to do or see while on a layover in Orlando?

    Most Orlando visitors opt to spend their time experiencing Walt Disney World Resort, Universal Orlando Resort, and International Drive. Travelers on a layover in Orlando can visit Walt Disney World Resort, Universal Orlando Resort, and International Drive, by traveling 16.2 mi, 10.2 mi, and 9.9 mi, respectively after landing at Orlando. Those landing in Orlando looking to spend some time exploring during their layover can rent a car for about $27 per day.

  • What are some popular points of interest to see during a layover in Miami?

    The majority of Miami visitors spend their time at Wynwood Art District, Bayfront Park, and Kaseya Center. Wynwood Art District, Bayfront Park, and Kaseya Center are located about 5.5 mi, 6.4 mi, and 6.2 mi, respectively from Miami. Those landing in Miami looking to spend some time exploring during their layover can rent a car for about $24 per day.

  • What are points of interest worth seeing during a layover in Charlotte?

    Carowind, Mint Museum Uptown, and NASCAR Hall of Fame are currently the most popular points of interest in Charlotte. Carowind, Mint Museum Uptown and NASCAR Hall of Fame are located about 8.2 mi, 5.4 mi, and 5.7 mi, respectively from Charlotte Douglas if you are interested in checking them out. Those landing in Charlotte looking to spend some time exploring during their layover can rent a car for about $44 per day.

  • Where are the least popular layover locations for Denver to San Juan Luis Munoz Marin Intl Airport flights?

    Of the flights from Denver to San Juan Luis Munoz Marin Intl Airport that have layovers, the fewest flights stop in Atlanta. Denver to San Juan Luis Munoz Marin Intl Airport flights stopping in Tampa are the next rarest.

  • Can I find deals for flights from Denver to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Denver to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Denver to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Denver to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Denver to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Denver to San Juan Luis Munoz Marin Intl Airport 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Top 6 airlines flying from Denver to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Denver to Luis Munoz Marin Intl. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$143Average$294FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$327Average$440FlexibilityNo cancel feeOn-time62%
DeltaCheapest$381Average$656FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$445Average$590FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$486Average$679FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$494Average$585FlexibilityNo cancel feeOn-time71%

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