HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$124+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — DEN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Juan 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Juan to Denver Intl are usually found in September or February, booked 66 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 29, 2025.

Round-trip from

$294
(Cheapflightsfares)

One-way from

$124
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$437
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. 17% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/94:39 pmSJU - DEN
1 stop8h 50mFrontier
Mon 5/129:23 amDEN - SJU
1 stop8h 21mFrontier
Deal found 4/29$294
This JetBlue deal was found by Cheapflights users on 4/28. 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 10/2111:30 amSJU - DEN
1 stop13h 29mJetBlue
Fri 10/311:11 pmDEN - SJU
1 stop11h 06mJetBlue
Deal found 4/28$338
This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/271:59 amSJU - DEN
2 stops23h 58mMultiple Airlines
Wed 6/410:52 amDEN - SJU
1 stop10h 08mMultiple Airlines
Deal found 4/28$343
This Southwest deal was found by Cheapflights users on 4/28. 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.
Thu 8/217:40 pmSJU - DEN
1 stop14h 20mSouthwest
Wed 9/310:25 amDEN - SJU
2 stops10h 20mSouthwest
Deal found 4/28$418
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Mon 10/201:05 amSJU - DEN
2 stops17h 25mUnited Airlines
Tue 10/285:00 amDEN - SJU
2 stops16h 36mUnited Airlines
Deal found 4/28$477
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/221:34 pmSJU - DEN
1 stop11h 15mDelta
Mon 8/116:05 amDEN - SJU
1 stop8h 45mDelta
Deal found 4/29$505
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/226:04 amSJU - DEN
1 stop18h 50mAmerican Airlines
Mon 8/118:20 amDEN - SJU
2 stops13h 45mAmerican Airlines
Deal found 4/29$519

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 29, 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 5/9

4:39 pm-11:29 pm

1 stop8h 50m

Denver Intl

Mon 5/12

9:23 am-7:44 pm

1 stop8h 21m

$294

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 10/21

11:30 am-10:59 pm

1 stop13h 29m

Denver Intl

Fri 10/31

1:11 pm-2:17 am

1 stop11h 06m

$338

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 5/27

1:59 am-11:57 pm

2 stops23h 58m

Denver Intl

Wed 6/4

10:52 am-11:00 pm

1 stop10h 08m

$343

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 8/21

7:40 pm-8:00 am

1 stop14h 20m

Denver Intl

Wed 9/3

10:25 am-10:45 pm

2 stops10h 20m

$418

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Mon 10/20

1:05 am-4:30 pm

2 stops17h 25m

Denver Intl

Tue 10/28

5:00 am-11:36 pm

2 stops16h 36m

$477

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 7/22

1:34 pm-10:49 pm

1 stop11h 15m

Denver Intl

Mon 8/11

6:05 am-4:50 pm

1 stop8h 45m

$505

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 7/22

6:04 am-10:54 pm

1 stop18h 50m

Denver Intl

Mon 8/11

8:20 am-12:05 am

2 stops13h 45m

$519

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 5/16

2:34 pm-11:29 pm

1 stop10h 55m

$135

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 7/11

1:20 pm-10:56 pm

1 stop11h 36m

$169

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 9/30

5:00 am-1:05 pm

2 stops10h 05m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 13 results
1
2

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 April 25, 2025.

To ensure you get the cheapest price possible for a flight from San Juan to Denver, you should look to book at least 66 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 29, 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 29, 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
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,936 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 $294. Other airlines that can offer you cheap pricing are JetBlue, from $379, and United Airlines, from $486. Frontier is priced at 30% 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 $135. JetBlue flights start at $210 while deals on United Airlines start at $234 one-way.

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

    While on average a flight from San Juan to Denver is generally $533, our data shows the cheapest flight currently is $184. When looking at the most popular route, (San Juan Luis Munoz Marin Intl - Denver Intl), you can expect to pay $300 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
Winter Park
Lakewood
Cripple Creek
Silverthorne
Brighton
Golden
Thornton
Greeley
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Limon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$272FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$276Average$475FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$419Average$573FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$468Average$653FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$474Average$686FlexibilityNo cancel feeOn-time71%
DeltaCheapest$474Average$585FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.