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$110+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Find cheap flights from Luis Munoz Marin Intl to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Denver Intl are usually found in March or February, booked 79 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap 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 January 26, 2026.

This Frontier deal was found by Cheapflights users on 1/24. 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 2/1811:07 am
SJU
-
DEN
1 stop14h 52m
Frontier
Mon 2/2311:05 am
DEN
-
SJU
1 stop11h 19m
Frontier
Deal found 1/24$203
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 4/103:16 am
SJU
-
DEN
1 stop14h 04m
Frontier
Tue 4/1411:59 pm
DEN
-
SJU
1 stop7h 55m
Frontier
Deal found 1/25$205
This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:04 pm
SJU
-
DEN
1 stop27h 55m
Frontier
Thu 2/197:24 pm
DEN
-
SJU
1 stop28h 29m
Frontier
Deal found 1/26$209
This eDestinos deal was found by Cheapflights users on 1/25. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/93:53 am
SJU
-
DEN
1 stop22h 06m
Frontier
Mon 2/166:00 am
DEN
-
SJU
1 stop17h 25m
Frontier
Deal found 1/25$210
This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:04 pm
SJU
-
DEN
1 stop22h 58m
Frontier
Mon 2/166:00 am
DEN
-
SJU
1 stop17h 25m
Frontier
Deal found 1/26$211
This Priceline deal was found by Cheapflights users on 1/26. 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.
Fri 2/207:09 pm
SJU
-
DEN
1 stop27h 51m
Frontier
Sat 2/2811:59 pm
DEN
-
SJU
1 stop23h 54m
Frontier
Deal found 1/26$213
This eDestinos deal was found by Cheapflights users on 1/24. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:30 am
SJU
-
DEN
1 stop18h 39m
Frontier
Tue 3/1711:49 pm
DEN
-
SJU
1 stop23h 30m
Frontier
Deal found 1/24$215
This Frontier deal was found by Cheapflights users on 1/26. 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 5/13:19 pm
SJU
-
DEN
1 stop9h 40m
Frontier
Tue 5/123:41 pm
DEN
-
SJU
1 stop8h 20m
Frontier
Deal found 1/26$217
This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:00 am
SJU
-
DEN
1 stop30h 11m
Frontier
Mon 3/912:28 am
DEN
-
SJU
1 stop8h 42m
Frontier
Deal found 1/26$219
This eDestinos deal was found by Cheapflights users on 1/25. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:00 am
SJU
-
DEN
1 stop12h 36m
Frontier
Mon 2/99:41 am
DEN
-
SJU
1 stop11h 18m
Frontier
Deal found 1/25$220
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Wed 2/2511:07 am
SJU
-
DEN
1 stop10h 10m
Multiple Airlines
Mon 3/212:59 am
DEN
-
SJU
2 stops14h 59m
Multiple Airlines
Deal found 1/26$222
This Expedia deal was found by Cheapflights users on 1/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/78:00 am
SJU
-
DEN
1 stop27h 30m
Frontier
Wed 2/1111:59 pm
DEN
-
SJU
1 stop23h 54m
Frontier
Deal found 1/25$224

Find 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$203
(Expedia)

One-way from

$110
(Frontier)

Popular in

May

Cheapest in

March

Average price

$521

Good round-trip deal

$474 or less

Good one-way deal

$304 or less
Provider with most accurate pricing for San Juan Luis Munoz Marin Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Juan Luis Munoz Marin Intl-Denver Intl flights.
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From San Juan Luis Munoz Marin Intl to Denver Intl
Search Deals
One-way flight from San Juan Luis Munoz Marin Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Denver Intl.
Search Deals
Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Denver Intl.
Search Deals

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 January 26, 2026.
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

Thu 4/30

6:30 am-2:32 pm

1 stop10h 02m

Denver Intl

Sun 5/10

3:41 pm-2:01 am

1 stop8h 20m

$217

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 2/19

6:10 am-3:30 pm

2 stops12h 20m

Denver Intl

Thu 2/26

12:00 pm-1:05 am

2 stops10h 05m

$418

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 2/20

10:50 am-7:10 pm

2 stops11h 20m

Denver Intl

Mon 3/2

7:05 am-7:20 pm

2 stops9h 15m

$440

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 6/5

1:40 pm-6:15 pm

Nonstop6h 35m

Denver Intl

Sun 6/7

7:35 pm-5:29 am

1 stop7h 54m

$512

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 3/31

2:05 pm-10:55 pm

2 stops10h 50m

Denver Intl

Tue 4/7

12:05 pm-11:40 pm

2 stops9h 35m

$516

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 6/17

1:30 pm-9:50 pm

1 stop10h 20m

Denver Intl

Mon 6/22

10:00 am-11:35 pm

2 stops11h 35m

$516

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 5/21

12:30 pm-9:39 pm

1 stop11h 09m

Denver Intl

Sun 5/24

9:35 am-10:50 pm

1 stop11h 15m

$519

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 5/28

1:40 pm-6:11 pm

Nonstop6h 31m

Denver Intl

Mon 6/1

9:43 am-5:30 pm

Nonstop5h 47m

$597

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 4/17

1:40 pm-6:15 pm

Nonstop6h 35m

Denver Intl

Sun 4/26

9:43 am-5:38 pm

Nonstop5h 55m

$597

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 5/21

1:40 pm-6:11 pm

Nonstop6h 31m

Denver Intl

Sun 5/24

9:43 am-5:30 pm

Nonstop5h 47m

$597

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 21 results
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Compare providers for flights from Luis Munoz Marin Intl to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Luis Munoz Marin Intl to Denver in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Denver flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Juan Luis Munoz Marin Intl Airport-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 January 23, 2026.

Booking 79 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, March is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Denver (average of $130). Flying from San Juan Luis Munoz Marin Intl Airport to Denver in May is currently the most expensive (average of $301). 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 January 26, 2026.

When flying from San Juan Luis Munoz Marin Intl Airport to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 January 26, 2026.
Read through reviews of airlines operating flights from San Juan Luis Munoz Marin Intl Airport to Denver, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,111 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,199 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,189 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,058 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 is 1 daily inbound flight 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, Southwest, and United Airlines can get you from San Juan Luis Munoz Marin Intl Airport to Denver in just under 6h 35m. Your travel time can differ by up to 5h 45m. 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 $142, 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 American Airlines. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Denver for 68% 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 Frontier, which is currently one of the cheapest options available, starting at $85. JetBlue flights start at $170 while deals on Delta start at $174 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 $813, our data indicates the cheapest price to be $236. The most popular route (San Juan Luis Munoz Marin Intl - Denver Intl), is priced around $199.

  • 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, March is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Denver (average of $130). Flying from San Juan Luis Munoz Marin Intl Airport to Denver in May is currently the most expensive (average of $301). 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
Thornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Cripple Creek
Winter Park
Central City
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

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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.
Luis Munoz Marin Intl to Colorado Springs flights
Luis Munoz Marin Intl to Durango flights

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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$142Average$320FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$195Average$437FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$207Average$585FlexibilityNo cancel feeOn-time71%
DeltaCheapest$308Average$555FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$411Average$555FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$486Average$665FlexibilityNo cancel feeOn-time69%

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