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$90+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 February or March, booked 83 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 December 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:14 pmSJU - DEN
1 stop19h 35mFrontier
Sat 1/1011:59 pmDEN - SJU
1 stop23h 51mFrontier
Deal found 12/11$220
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:14 pmSJU - DEN
1 stop28h 27mFrontier
Fri 1/26:00 amDEN - SJU
1 stop15h 54mFrontier
Deal found 12/11$228
This Priceline deal was found by Cheapflights users on 12/9. 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 12/303:14 pmSJU - DEN
1 stop19h 35mFrontier
Mon 1/56:00 amDEN - SJU
1 stop16h 24mFrontier
Deal found 12/9$233
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:44 pmSJU - DEN
1 stop10h 05mFrontier
Mon 1/56:00 amDEN - SJU
1 stop16h 24mFrontier
Deal found 12/11$234
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:14 pmSJU - DEN
1 stop9h 35mFrontier
Mon 12/296:00 amDEN - SJU
1 stop16h 24mFrontier
Deal found 12/11$244
This Priceline deal was found by Cheapflights users on 12/9. 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 12/226:00 amSJU - DEN
1 stop20h 04mFrontier
Mon 12/2911:59 pmDEN - SJU
1 stop19h 38mFrontier
Deal found 12/9$245
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:36 pmSJU - DEN
1 stop15h 20mFrontier
Thu 1/16:00 amDEN - SJU
1 stop16h 24mFrontier
Deal found 12/11$246
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/171:59 amSJU - DEN
1 stop24h 00mFrontier
Sun 12/216:00 amDEN - SJU
1 stop16h 24mFrontier
Deal found 12/11$250
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
Mon 12/295:22 pmSJU - DEN
1 stop18h 34mFrontier
Wed 1/144:31 pmDEN - SJU
2 stops28h 09mFrontier
Deal found 12/10$256
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
Tue 12/303:14 pmSJU - DEN
1 stop19h 35mFrontier
Fri 1/99:05 pmDEN - SJU
2 stops24h 32mFrontier
Deal found 12/10$259
This Frontier deal was found by Cheapflights users on 12/11. 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 12/318:36 pmSJU - DEN
1 stop15h 20mFrontier
Sat 1/106:33 pmDEN - SJU
1 stop11h 21mFrontier
Deal found 12/11$260
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:36 pmSJU - DEN
1 stop15h 20mFrontier
Wed 1/77:43 pmDEN - SJU
1 stop7h 51mFrontier
Deal found 12/11$262

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$211
(CheapOair)

One-way from

$90
(Super.com)

Popular in

May

Cheapest in

February

Average price

$496

Good round-trip deal

$489 or less

Good one-way deal

$300 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 ($14 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 December 2025
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 December 12, 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

Thu 1/22

6:00 am-2:14 pm

2 stops11h 14m

Denver Intl

Tue 1/27

11:59 pm-12:27 pm

1 stop9h 28m

$485

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 2/26

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Tue 3/3

9:45 am-6:25 pm

Nonstop5h 40m

$509

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 5/22

6:50 am-12:50 pm

1 stop8h 00m

Denver Intl

Tue 6/2

10:50 am-10:40 pm

2 stops9h 50m

$521

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

$576

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 5/14

1:40 pm-6:15 pm

Nonstop6h 35m

Denver Intl

Wed 5/20

9:43 am-5:38 pm

Nonstop5h 55m

$576

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 1/22

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Mon 1/26

9:45 am-6:25 pm

Nonstop5h 40m

$576

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 3/4

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Tue 3/10

7:45 am-8:00 pm

1 stop10h 15m

$581

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 3/4

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Mon 3/9

11:59 pm-11:49 am

1 stop9h 50m

$581

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 1/23

2:15 pm-9:24 pm

1 stop10h 09m

Denver Intl

Wed 1/28

9:45 am-6:25 pm

Nonstop5h 40m

$581

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 1/15

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Mon 1/19

9:50 am-10:22 pm

1 stop9h 32m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 22 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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Denver flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 2025.

Booking 83 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 December 12, 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 65% 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 afternoons 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 December 12, 2025.
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
7.9
Good
4,253 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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
5.8
Fair
3,084 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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 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?

    American Airlines, United Airlines, and Southwest 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 4h 27m. 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 $136, 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 American Airlines and JetBlue. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Denver for 69% 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 $82. 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 $725, our data indicates the cheapest price to be $180. The most popular route (San Juan Luis Munoz Marin Intl - Denver Intl), is priced around $171.

  • 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
Black Hawk
Thornton
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Silverthorne
Central City
Frisco
Wheat Ridge
Manitou Springs
Fort Morgan
Brighton
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.
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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$145Average$320FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$207Average$585FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$307Average$428FlexibilityNo cancel feeOn-time62%
DeltaCheapest$308Average$555FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$397Average$573FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$486Average$639FlexibilityNo cancel feeOn-time69%

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