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$71+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
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 October 16, 2025.

Round-trip from

$270
(Kiwi.com)

One-way from

$71
(Trip.com)

Popular in

May

Cheapest in

February

Average price

$418
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 ($36 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 October 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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/133:45 pmSJU - DEN
2 stops44h 18mFrontier
Wed 11/1912:59 amDEN - SJU
1 stop19h 10mFrontier
Deal found 10/14$269
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/134:31 pmSJU - DEN
1 stop31h 57mFrontier
Sun 11/1611:59 pmDEN - SJU
1 stop10h 28mFrontier
Deal found 10/16$270
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 12/37:10 amSJU - DEN
1 stop21h 13mFrontier
Mon 12/89:42 amDEN - SJU
1 stop29h 41mFrontier
Deal found 10/16$271
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 11/76:54 pmSJU - DEN
1 stop16h 39mFrontier
Sat 11/812:34 amDEN - SJU
1 stop21h 58mFrontier
Deal found 10/15$273
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 11/1212:29 pmSJU - DEN
1 stop13h 47mFrontier
Wed 11/199:09 amDEN - SJU
1 stop15h 24mFrontier
Deal found 10/15$274
This Frontier deal was found by Cheapflights users on 10/13. 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 11/199:00 amSJU - DEN
1 stop12h 26mFrontier
Mon 11/2411:14 pmDEN - SJU
1 stop9h 53mFrontier
Deal found 10/13$275
This Frontier deal was found by Cheapflights users on 10/16. 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.
Sat 12/69:15 amSJU - DEN
1 stop12h 54mFrontier
Fri 12/126:35 amDEN - SJU
2 stops14h 21mFrontier
Deal found 10/16$276
This Frontier deal was found by Cheapflights users on 10/14. 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 10/244:16 pmSJU - DEN
1 stop10h 35mFrontier
Sat 10/2512:34 amDEN - SJU
1 stop9h 27mFrontier
Deal found 10/14$277
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/66:54 pmSJU - DEN
1 stop16h 39mFrontier
Sun 11/912:59 amDEN - SJU
2 stops12h 11mFrontier
Deal found 10/16$280

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 October 16, 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

Fri 12/19

5:35 am-12:35 pm

2 stops10h 00m

Denver Intl

Sun 1/4

9:05 am-1:25 am

2 stops13h 20m

$525

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 12/24

8:55 am-4:40 pm

2 stops10h 45m

Denver Intl

Thu 1/1

10:20 am-11:20 pm

2 stops10h 00m

$535

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 11/18

2:10 pm-11:35 pm

1 stop12h 25m

Denver Intl

Wed 11/26

11:59 pm-12:56 pm

1 stop9h 57m

$555

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 12/22

3:44 pm-10:33 pm

1 stop9h 49m

Denver Intl

Sun 12/28

12:20 am-3:47 pm

1 stop12h 27m

$565

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 11/14

2:25 pm-6:12 pm

Nonstop6h 47m

Denver Intl

Mon 11/17

12:45 pm-12:36 am

1 stop8h 51m

$581

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 11/12

8:10 am-3:43 pm

1 stop10h 33m

Denver Intl

Wed 11/19

9:45 am-6:25 pm

Nonstop5h 40m

$581

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 12/3

3:46 pm-11:30 pm

1 stop10h 44m

Denver Intl

Sun 12/7

9:45 am-6:25 pm

Nonstop5h 40m

$581

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 10/24

4:55 pm-12:18 pm

2 stops21h 23m

Denver Intl

Mon 10/27

2:00 pm-12:17 pm

2 stops20h 17m

$590

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 11/17

2:05 am-6:12 pm

2 stops19h 07m

Denver Intl

Thu 11/27

9:45 am-6:25 pm

Nonstop5h 40m

$591

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 12/23

4:45 pm-10:50 pm

1 stop9h 05m

Denver Intl

Fri 1/2

12:20 am-3:47 pm

1 stop12h 27m

$620

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 22 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 October 10, 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, January 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 October 16, 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.

How much does it cost to fly round-trip from San Juan to Denver?

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 October 16, 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
4,241 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
Delta
8.0
Very good
7,984 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
8,982 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
11,043 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
3,137 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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 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 $581, Southwest can have you in Denver from San Juan in 6h 47m. 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 $129. Other airlines that can offer you cheap pricing are JetBlue, from $316, and Delta, from $381. Frontier is priced at 71% 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 $749, our data shows the cheapest flight currently is $132. 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, January 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
Lakewood
Golden
Broomfield
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$289FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$316Average$485FlexibilityNo cancel feeOn-time62%
DeltaCheapest$381Average$557FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$443Average$580FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$486Average$652FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$494Average$668FlexibilityNo cancel feeOn-time71%

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