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$143+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Denver Intl are usually found in September or February, booked 14 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

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 April 1, 2025.

Round-trip from

$296
(Frontier)

One-way from

$143
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$336
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. 19% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/92:45 amSJU - DEN
1 stop9h 39mFrontier
Mon 4/143:15 pmDEN - SJU
1 stop7h 39mFrontier
Deal found 4/1$292
This JetBlue deal was found by Cheapflights users on 3/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/293:28 amSJU - DEN
1 stop9h 49mJetBlue
Tue 5/62:38 pmDEN - SJU
1 stop9h 11mJetBlue
Deal found 3/31$338
This Delta deal was found by Cheapflights users on 3/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:50 pmSJU - DEN
1 stop8h 38mDelta
Sun 12/2812:55 amDEN - SJU
1 stop10h 35mDelta
Deal found 3/31$381
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/71:55 pmSJU - DEN
3 stops29h 32mMultiple Airlines
Mon 5/1211:13 amDEN - SJU
3 stops46h 18mMultiple Airlines
Deal found 3/31$391
This United Airlines deal was found by Cheapflights users on 3/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/71:40 pmSJU - DEN
Nonstop6h 31mUnited Airlines
Mon 5/129:43 amDEN - SJU
Nonstop5h 47mUnited Airlines
Deal found 3/31$486
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/16:03 amSJU - DEN
1 stop18h 38mAmerican Airlines
Sun 8/176:19 amDEN - SJU
2 stops11h 56mAmerican Airlines
Deal found 3/31$506
This Southwest deal was found by Cheapflights users on 3/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:10 amSJU - DEN
2 stops10h 45mSouthwest
Thu 11/612:05 pmDEN - SJU
2 stops10h 20mSouthwest
Deal found 3/31$525

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 April 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

Thu 4/17

9:35 pm-9:04 am

1 stop13h 29m

Denver Intl

Mon 4/21

10:59 pm-9:50 am

1 stop8h 51m

$296

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 4/29

3:28 am-11:17 am

1 stop9h 49m

Denver Intl

Tue 5/6

2:38 pm-1:49 am

1 stop9h 11m

$338

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 6/3

6:15 am-1:57 pm

1 stop9h 42m

Denver Intl

Tue 6/17

7:00 am-4:37 pm

1 stop7h 37m

$381

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 5/7

1:55 pm-5:27 pm

3 stops29h 32m

Denver Intl

Mon 5/12

11:13 am-11:31 am

3 stops46h 18m

$391

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 5/7

1:40 pm-6:11 pm

Nonstop6h 31m

Denver Intl

Mon 5/12

9:43 am-5:30 pm

Nonstop5h 47m

$486

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 6/5

8:00 am-8:00 pm

1 stop14h 00m

Denver Intl

Tue 6/10

6:00 am-6:05 pm

2 stops10h 05m

$495

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 4/28

6:05 am-2:50 pm

1 stop10h 45m

Denver Intl

Fri 5/2

5:10 am-5:45 pm

2 stops10h 35m

$515

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 4/23

9:30 pm-8:39 am

1 stop13h 09m

$143

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 6/26

1:20 pm-10:56 pm

1 stop11h 36m

$169

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Sat 4/19

6:38 pm-5:15 pm

2 stops24h 37m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 14 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 March 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 14 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, October is the cheapest month in which you can book a flight from San Juan to Denver (average of $197). Flying from San Juan to Denver in March is currently the most expensive (average of $278). 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 April 1, 2025.

It’s optimal to fly from San Juan to Denver in the afternoon. By choosing this option you can save up to 67% on the cost of your flight, compared to a flight at noon.

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.

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 April 1, 2025.
To help decide which airline to fly from San Juan to Denver, see what other customers have to say about Southwest, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,277 reviews

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,277 reviews
Southwest
8.0
Very good
4,277 reviews

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,898 reviews
Southwest
8.0
Very good
4,277 reviews

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,615 reviews
Southwest
8.0
Very good
4,277 reviews

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,924 reviews
Southwest
8.0
Very good
4,277 reviews

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,277 reviews

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

  • 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 $296. Other airlines that can offer you cheap pricing are JetBlue, from $338, and Delta, from $381. Frontier is priced at 28% 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 $143. JetBlue flights start at $169 while deals on Delta start at $191 one-way.

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

    While on average a flight from San Juan to Denver is generally $527, 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 $296 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, October is the cheapest month in which you can book a flight from San Juan to Denver (average of $197). Flying from San Juan to Denver in March is currently the most expensive (average of $278). 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 San Juan?

Book flights to San Juan if you plan to visit one of these locations
Westminster
Black Hawk
Lakewood
Winter Park
Cripple Creek
Golden
Silverthorne
Brighton
Broomfield
Greeley
Frisco
Wheat Ridge
Grand Lake
Central City
Glendale
Copper Mountain
Longmont
Thornton
Idaho Springs
Limon

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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$284FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$276Average$474FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$419Average$573FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$465Average$648FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$472Average$673FlexibilityNo cancel feeOn-time71%
DeltaCheapest$474Average$590FlexibilityNo cancel feeOn-timeN/A

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