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$108+ Cheap flights from San Juan 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Jan 31 — Feb 71
Sat 1/31
Sat 2/7
1 adult, Economy
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1. Tell us where you want to go

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3. Compare prices and book

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Cheapflights Tip: The best prices from San Juan 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 San Juan to Denver

Cheapest flights from San Juan to Denver
Explore the most affordable flight options available from San Juan to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

This Frontier deal was found by Cheapflights users on 12/31. 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 1/1011:22 amDEN - SJU
1 stop12h 28mFrontier
Deal found 12/31$373
This eDestinos deal was found by Cheapflights users on 12/29. 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 12/3110:33 amSJU - DEN
1 stop15h 31mFrontier
Mon 1/511:59 pmDEN - SJU
1 stop8h 17mFrontier
Deal found 12/29$374
This eDestinos deal was found by Cheapflights users on 12/30. 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 12/318:36 pmSJU - DEN
1 stop15h 20mFrontier
Sun 1/1111:59 pmDEN - SJU
1 stop10h 50mFrontier
Deal found 12/30$404
This eDestinos deal was found by Cheapflights users on 12/29. 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 12/3110:33 amSJU - DEN
1 stop15h 31mFrontier
Tue 1/611:59 pmDEN - SJU
1 stop8h 17mFrontier
Deal found 12/29$433
This CheapOair deal was found by Cheapflights users on 12/30. 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 12/303:14 pmSJU - DEN
1 stop28h 27mFrontier
Mon 1/511:59 pmDEN - SJU
1 stop14h 38mFrontier
Deal found 12/30$444
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 12/304:10 amSJU - DEN
2 stops12h 23mMultiple Airlines
Mon 1/511:59 pmDEN - SJU
1 stop8h 17mMultiple Airlines
Deal found 12/29$525
This eDestinos deal was found by Cheapflights users on 12/30. 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 12/315:14 pmSJU - DEN
1 stop18h 01mMultiple Airlines
Sun 1/119:44 amDEN - SJU
2 stops26h 35mMultiple Airlines
Deal found 12/30$561

Find flight deals from San Juan to Denver

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) 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 1, 2026.

Round-trip from

$196
(Kiwi.com)

One-way from

$108
(Cheapflightsfares)

Popular in

May

Cheapest in

February

Average price

$490
From San Juan to Denver Intl
Search Deals
One-way flight from San Juan to Denver Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($32 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
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan 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 1, 2026.
Use the filters below to find and compare flights from San Juan to Denver that are best for you.

Fly from

San Juan

Fly to

Denver

Route

Depart

Return

Price

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 2/25

5:25 pm-7:55 am

1 stop17h 30m

Denver Intl

Sun 3/1

11:25 pm-12:39 pm

1 stop10h 14m

$215

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 3/11

6:30 am-8:20 am

1 stop27h 50m

Denver Intl

Tue 3/17

9:25 am-8:54 am

1 stop21h 29m

$227

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 3/2

7:09 pm-2:06 pm

1 stop21h 57m

Denver Intl

Fri 3/6

11:28 am-1:27 am

1 stop10h 59m

$249

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 4/17

1:00 pm-10:13 pm

1 stop11h 13m

Denver Intl

Sat 4/18

11:08 pm-12:00 pm

1 stop10h 52m

$272

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 2/12

4:52 pm-11:06 pm

1 stop9h 14m

Denver Intl

Mon 2/16

9:45 am-6:25 pm

Nonstop5h 40m

$491

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 3/23

1:05 am-10:29 am

1 stop11h 24m

Denver Intl

Tue 3/31

9:43 am-5:38 pm

Nonstop5h 55m

$491

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 2/25

5:40 am-1:40 pm

2 stops11h 00m

Denver Intl

Sun 3/1

9:00 pm-10:30 am

2 stops10h 30m

$495

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 2/11

5:40 am-12:40 pm

2 stops10h 00m

Denver Intl

Mon 2/16

9:00 pm-10:30 am

2 stops10h 30m

$495

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 1/21

5:40 am-12:40 pm

2 stops10h 00m

Denver Intl

Sun 1/25

8:15 am-12:05 am

2 stops12h 50m

$495

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 2/11

6:00 am-4:21 pm

2 stops13h 21m

Denver Intl

Mon 2/16

11:31 pm-1:33 pm

1 stop11h 02m

$510

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 23 results
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Best time to book a flight from San Juan to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from San Juan 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 to Denver

How far ahead should I book a flight from San Juan to Denver?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Denver. Price data was last updated on December 26, 2025.

To ensure you get the cheapest price possible for a flight from San Juan to Denver, you should look to book at least 83 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 San Juan to Denver?

Currently, March is the cheapest month in which you can book a flight from San Juan to Denver (average of $129). Flying from San Juan 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 San Juan 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 1, 2026.

When flying from San Juan 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 1, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Juan to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

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
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

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
8,013 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

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
9,129 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

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
11,069 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

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
3,067 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

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 San Juan 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?

    Denver Intl (DEN) is the airport you will fly into if you book a flight from San Juan to Denver. You should not have trouble finding flights to Denver Intl from San Juan; the airport handles an average of 0 inbound flights from San Juan per day. You should also have plenty of airline options to choose from since 6 airlines have flights to the Denver airport from San Juan. It is only a 18.5 mi journey from Denver Intl (DEN) to Denver’s city center.

  • How long is the flight from San Juan to Denver?

    For as low as $272, Frontier can have you in Denver from San Juan in 11h 13m. Airlines will cover a distance of 2730 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from San Juan to Denver round-trip?

    Cheapflights users have booked flights from San Juan to Denver round-trip from $144. Other airlines that can offer you cheap pricing are JetBlue, from $195, and American Airlines, from $207. Frontier is priced at 68% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Juan 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 $83. JetBlue flights start at $170 while deals on Delta start at $174 one-way.

  • What are the cheapest flights from San Juan to Denver?

    While on average a flight from San Juan to Denver is generally $796, our data shows the cheapest flight currently is $188. When looking at the most popular route, (San Juan Luis Munoz Marin Intl - Denver Intl), you can expect to pay $196 for that flight.

  • Can I find deals for flights from San Juan to Denver that include hotel bookings?

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

  • How can I find direct flights from San Juan to Denver?

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

  • Can I find deals for business class flights from San Juan to Denver?

    Yes. Cheapflights offers flight deals from San Juan 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 to Denver?

    Currently, March is the cheapest month in which you can book a flight from San Juan to Denver (average of $129). Flying from San Juan 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
Broomfield
Westminster
Golden
Greeley
Lone Tree
Lakewood
Wheat Ridge
Winter Park
Cripple Creek
Silverthorne
Central City
Frisco
Manitou Springs
Fort Morgan
Brighton
Longmont
Evergreen
Idaho Springs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Juan to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Denver flights
Luis Munoz Marin Intl to Colorado Springs flights
Aguadilla to Denver flights
Luis Munoz Marin Intl to Durango flights

Top 6 airlines flying from San Juan to Denver

Discover the top 6 airlines that operate flights from San Juan 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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$292FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$207Average$585FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$286Average$419FlexibilityNo cancel feeOn-time62%
DeltaCheapest$308Average$555FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$411Average$580FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$486Average$661FlexibilityNo cancel feeOn-time69%

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