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

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Denver Intl are usually found in February or October, booked 66 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Luis Munoz Marin Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to Denver (DEN). 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 11, 2025.

Round-trip from

$250
(Frontier)

One-way from

$133
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$385

Good round-trip deal

$415 or less

Good one-way deal

$242 or less
From San Juan Luis Munoz Marin Intl to Denver Intl
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One-way flight from San Juan Luis Munoz Marin Intl to Denver Intl
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Highest demand for flights based on searches. 9% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 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 San Juan Luis Munoz Marin Intl to Denver Intl.
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Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Denver Intl.
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Find flight deals from Luis Munoz Marin Intl to Denver

Cheapest flights from Luis Munoz Marin Intl to Denver
Explore the most affordable flight options available from Luis Munoz Marin Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Frontier deal was found by Cheapflights users on 9/11. 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.
Wed 11/129:00 amSJU - DEN
1 stop12h 26mFrontier
Sun 11/1611:59 pmDEN - SJU
1 stop10h 18mFrontier
Deal found 9/11$250
This Frontier deal was found by Cheapflights users on 9/11. 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.
Wed 11/129:00 amSJU - DEN
1 stop12h 26mFrontier
Thu 11/1312:34 amDEN - SJU
1 stop12h 36mFrontier
Deal found 9/11$253
This Frontier deal was found by Cheapflights users on 9/11. 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 11/149:00 amSJU - DEN
1 stop12h 26mFrontier
Sun 11/168:56 pmDEN - SJU
2 stops13h 21mFrontier
Deal found 9/11$259
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/234:04 pmSJU - DEN
1 stop17h 32mMultiple Airlines
Sat 10/257:38 pmDEN - SJU
1 stop17h 21mMultiple Airlines
Deal found 9/10$263
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Fri 12/511:02 amSJU - DEN
1 stop8h 46mFrontier
Sun 12/712:51 amDEN - SJU
1 stop11h 03mFrontier
Deal found 9/11$264
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:22 amSJU - DEN
1 stop11h 02mFrontier
Mon 10/1310:29 pmDEN - SJU
2 stops50h 01mFrontier
Deal found 9/11$266
This Frontier deal was found by Cheapflights users on 9/10. 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 10/239:06 pmSJU - DEN
1 stop13h 27mFrontier
Wed 10/2912:59 amDEN - SJU
2 stops14h 55mFrontier
Deal found 9/10$267
This Priceline deal was found by Cheapflights users on 9/11. 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 9/2512:28 amSJU - DEN
1 stop10h 29mFrontier
Fri 10/37:15 pmDEN - SJU
1 stop14h 46mFrontier
Deal found 9/11$268
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:59 amSJU - DEN
1 stop8h 59mFrontier
Wed 10/2211:45 pmDEN - SJU
1 stop9h 16mFrontier
Deal found 9/10$269
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Fri 11/72:11 amSJU - DEN
1 stop9h 24mFrontier
Mon 11/1712:16 amDEN - SJU
1 stop8h 03mFrontier
Deal found 9/11$270
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:06 pmSJU - DEN
1 stop13h 27mFrontier
Thu 10/1612:36 amDEN - SJU
1 stop23h 54mFrontier
Deal found 9/10$271
This Frontier deal was found by Cheapflights users on 9/10. 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.
Wed 10/226:22 amSJU - DEN
1 stop11h 02mFrontier
Fri 10/247:49 amDEN - SJU
2 stops10h 07mFrontier
Deal found 9/10$273

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl to Denver 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 11, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Denver that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Denver

Route

Depart

Return

Price

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 1/26

3:55 am-3:55 pm

1 stop15h 00m

Denver Intl

Fri 1/30

12:59 am-3:06 pm

1 stop11h 07m

$286

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 11/21

7:15 am-6:47 pm

1 stop14h 32m

Denver Intl

Tue 11/25

12:55 am-2:10 pm

1 stop10h 15m

$445

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 12/23

3:44 pm-10:28 pm

1 stop9h 44m

Denver Intl

Fri 1/2

12:20 am-2:34 pm

1 stop11h 14m

$510

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 1/27

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Sat 1/31

11:59 pm-10:22 pm

1 stop19h 23m

$547

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 11/4

8:30 am-7:29 pm

1 stop13h 59m

Denver Intl

Wed 11/12

9:45 am-6:25 pm

Nonstop5h 40m

$547

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 12/23

5:14 pm-5:44 pm

1 stop27h 30m

Denver Intl

Mon 12/29

10:30 am-4:13 pm

1 stop26h 43m

$550

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 12/23

3:45 am-10:37 am

1 stop9h 52m

Denver Intl

Fri 1/9

6:05 am-5:19 pm

1 stop8h 14m

$555

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 10/20

1:05 am-2:27 pm

2 stops15h 22m

Denver Intl

Tue 10/28

5:00 am-8:26 pm

1 stop13h 26m

$576

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 2/24

2:25 pm-6:09 pm

Nonstop6h 44m

Denver Intl

Sun 3/1

9:46 am-6:25 pm

Nonstop5h 39m

$576

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 12/24

5:14 pm-9:56 am

1 stop19h 42m

$212

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results
1
2

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Denver. Price data was last updated on August 29, 2025.

Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan Luis Munoz Marin Intl Airport to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Denver (average of $197). Flying from San Juan Luis Munoz Marin Intl Airport to Denver in March is currently the most expensive (average of $278). 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 SJU to DEN?

Find hourly flight availability from Luis Munoz Marin Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from San Juan Luis Munoz Marin Intl Airport to Denver in the afternoon. By choosing this option you can save up to 50% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to Denver. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from San Juan Luis Munoz Marin Intl Airport to Denver, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
JetBlue
7.2
Good
2,913 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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 Luis Munoz Marin Intl to Denver. 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 into for flights to Denver from San Juan Luis Munoz Marin Intl?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Denver from San Juan Luis Munoz Marin Intl. Booking flights from San Juan Luis Munoz Marin Intl to Denver Intl (DEN) should be relatively easy as there are 0 daily inbound flights from San Juan Luis Munoz Marin Intl from 6 different airlines.

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

    Frontier, Delta, and United Airlines can get you from San Juan Luis Munoz Marin Intl Airport to Denver in just under 6h 47m. Your travel time can differ by up to 8h 13m. San Juan Luis Munoz Marin Intl Airport and Denver are separated by a distance of 2730 mi. This flight may include one or multiple stops.

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

    Frontier, at $130, was found to be the cheapest airline from San Juan Luis Munoz Marin Intl Airport to Denver.Alternate airlines to your destination round-trip include JetBlue and Delta. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Denver for 71% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to Denver one-way?

    To fly one-way, consider booking your trip with Sun Country Air, which is currently one of the cheapest options available, starting at $212. JetBlue flights start at $227 while deals on Frontier start at $230 one-way.

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

    Looking for the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Denver? While on average our users pay $513, our data indicates the cheapest price to be $198. The most popular route (San Juan Luis Munoz Marin Intl - Denver Intl), is priced around $286.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Denver (average of $197). Flying from San Juan Luis Munoz Marin Intl Airport to Denver in March is currently the most expensive (average of $278). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Golden
Winter Park
Broomfield
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Silverthorne
Frisco
Manitou Springs
Fort Morgan
Glendale
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Longmont
Idaho Springs
Parker

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Alternative routes for Luis Munoz Marin Intl to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Luis Munoz Marin Intl to Denver

Discover the top 6 airlines that operate flights from Luis Munoz Marin Intl to Denver. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$308FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$316Average$484FlexibilityNo cancel feeOn-time62%
DeltaCheapest$381Average$565FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$397Average$574FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$484Average$673FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$486Average$665FlexibilityNo cancel feeOn-time69%

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