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$89+ 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Denver Intl are usually found in February or March, booked 87 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap 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 December 1, 2025.

Round-trip from

$237
(CheapOair)

One-way from

$89
(Super.com)

Popular in

May

Cheapest in

February

Average price

$492
From San Juan to Denver Intl
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One-way flight from San Juan to Denver Intl
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Highest demand for flights based on searches. 7% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Find 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 December 1, 2025.

This eDestinos deal was found by Cheapflights users on 11/30. 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.
Mon 12/223:55 amSJU - DEN
1 stop22h 09mFrontier
Thu 12/256:00 amDEN - SJU
1 stop16h 24mFrontier
Deal found 11/30$248
This CheapOair deal was found by Cheapflights users on 11/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amSJU - DEN
1 stop20h 04mFrontier
Tue 12/306:00 amDEN - SJU
1 stop16h 39mFrontier
Deal found 11/29$250
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:33 pmSJU - DEN
1 stop16h 15mFrontier
Sun 1/116:00 amDEN - SJU
1 stop27h 35mFrontier
Deal found 11/30$251
This Frontier deal was found by Cheapflights users on 11/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:00 pmSJU - DEN
1 stop11h 40mFrontier
Sun 12/712:59 amDEN - SJU
1 stop11h 12mFrontier
Deal found 11/30$252
This eDestinos deal was found by Cheapflights users on 11/29. 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.
Tue 12/23:55 amSJU - DEN
1 stop22h 09mFrontier
Sat 12/612:59 amDEN - SJU
1 stop11h 22mFrontier
Deal found 11/29$253
This Frontier deal was found by Cheapflights users on 11/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/712:00 pmSJU - DEN
1 stop11h 40mFrontier
Sat 12/1312:59 amDEN - SJU
1 stop11h 22mFrontier
Deal found 11/30$254
This CheapOair deal was found by Cheapflights users on 11/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:55 amSJU - DEN
1 stop22h 09mFrontier
Sun 12/147:00 amDEN - SJU
1 stop28h 54mFrontier
Deal found 11/29$255
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:14 pmSJU - DEN
2 stops21h 18mMultiple Airlines
Thu 12/1111:00 pmDEN - SJU
1 stop12h 29mMultiple Airlines
Deal found 11/30$258
This Priceline deal was found by Cheapflights users on 11/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/211:59 amSJU - DEN
1 stop24h 00mFrontier
Tue 12/306:00 amDEN - SJU
1 stop16h 39mFrontier
Deal found 11/29$263
This Priceline deal was found by Cheapflights users on 11/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:55 amSJU - DEN
1 stop22h 09mFrontier
Thu 12/1111:00 pmDEN - SJU
1 stop12h 29mFrontier
Deal found 11/30$264
This CheapOair deal was found by Cheapflights users on 11/30. 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 12/23:55 amSJU - DEN
1 stop19h 18mFrontier
Sat 12/139:34 amDEN - SJU
1 stop14h 16mFrontier
Deal found 11/30$265
This eDestinos deal was found by Cheapflights users on 11/29. 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 12/245:09 pmSJU - DEN
1 stop8h 55mFrontier
Thu 1/111:59 pmDEN - SJU
1 stop21h 55mFrontier
Deal found 11/29$266

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 December 1, 2025.
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

Tue 2/17

11:50 pm-9:38 am

1 stop12h 48m

Denver Intl

Tue 2/24

11:55 am-11:44 pm

1 stop8h 49m

$272

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 1/16

5:35 am-12:55 pm

2 stops10h 20m

Denver Intl

Wed 1/21

10:35 am-11:10 pm

2 stops9h 35m

$477

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 1/30

2:15 pm-11:02 pm

1 stop11h 47m

Denver Intl

Wed 2/4

9:45 am-6:25 pm

Nonstop5h 40m

$491

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 1/15

2:15 pm-7:28 pm

1 stop8h 13m

Denver Intl

Tue 1/20

12:30 am-2:31 pm

1 stop11h 01m

$495

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 1/22

2:15 pm-7:28 pm

1 stop8h 13m

Denver Intl

Mon 1/26

12:30 am-2:31 pm

1 stop11h 01m

$495

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 1/1

7:10 am-4:52 pm

1 stop12h 42m

Denver Intl

Wed 1/7

1:40 pm-1:22 am

1 stop8h 42m

$496

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 2/18

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Thu 2/26

11:20 am-10:22 pm

1 stop8h 02m

$514

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 12/25

8:55 am-4:55 pm

2 stops11h 00m

Denver Intl

Tue 12/30

1:10 pm-1:40 am

2 stops9h 30m

$515

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 2/17

2:05 am-3:57 pm

2 stops16h 52m

Denver Intl

Mon 2/23

6:00 am-9:00 pm

1 stop12h 00m

$541

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 1/26

2:05 am-12:38 pm

2 stops13h 33m

Denver Intl

Sat 1/31

3:15 pm-3:40 pm

1 stop21h 25m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 21 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 November 28, 2025.

To ensure you get the cheapest price possible for a flight from San Juan to Denver, you should look to book at least 87 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 December 1, 2025.

It’s optimal to fly from San Juan to Denver in the afternoon. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from San Juan to Denver?

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

Travelers seeking maximum savings on their San Juan 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 1, 2025.
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

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,010 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,065 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,041 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,094 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 $477, JetBlue can have you in Denver from San Juan in 10h 20m. 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 $143. Other airlines that can offer you cheap pricing are American Airlines, from $207, and JetBlue, from $307. Frontier is priced at 68% lower than the current average price of a flight leaving 3 months from now.

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

    While on average a flight from San Juan to Denver is generally $736, our data shows the cheapest flight currently is $180. When looking at the most popular route, (San Juan Luis Munoz Marin Intl - Denver Intl), you can expect to pay $211 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
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Thornton
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 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 December 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$143Average$294FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$207Average$585FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$307Average$423FlexibilityNo cancel feeOn-time62%
DeltaCheapest$308Average$555FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$443Average$569FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$486Average$645FlexibilityNo cancel feeOn-time69%

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