$109 Find Cheap Flights from Denver to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Puerto Rico departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Denver to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Puerto Rico

Tue, Jan 6 - Wed, Jan 14
Frontier Logo
6:38 pm - 6:34 amDEN-SJU
8h 56m1 stop
Frontier Logo
9:37 pm - 7:55 amSJU-DEN
13h 18m1 stop
$280Frontier
Find Deal
Thu, Dec 4 - Sat, Dec 20
Multiple Airlines Logo
9:00 pm - 3:55 pmDEN-SJU
15h 55m2 stops
Multiple Airlines Logo
9:58 pm - 8:24 amSJU-DEN
13h 26m1 stop
$281Multiple Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 22
Frontier Logo
12:59 am - 3:19 pmDEN-SJU
11h 20m1 stop
Frontier Logo
9:54 pm - 8:25 amSJU-DEN
13h 31m1 stop
$282Frontier
Find Deal
Mon, Dec 1 - Thu, Dec 11
Frontier Logo
12:59 am - 3:01 pmDEN-SJU
11h 02m1 stop
Frontier Logo
10:42 am - 8:56 amSJU-DEN
25h 14m2 stops
$283Frontier
Find Deal
Tue, Dec 2 - Sat, Dec 20
Frontier Logo
12:59 am - 3:01 pmDEN-SJU
11h 02m1 stop
Frontier Logo
9:58 pm - 8:24 amSJU-DEN
13h 26m1 stop
$284Frontier
Find Deal
Sun, Nov 9 - Wed, Nov 19
Frontier Logo
8:37 am - 1:32 amDEN-SJU
13h 55m2 stops
Frontier Logo
9:00 am - 6:26 pmSJU-DEN
12h 26m1 stop
$285Frontier
Find Deal
Tue, Dec 9 - Thu, Dec 25
Multiple Airlines Logo
8:00 am - 12:16 amDEN-SJU
13h 16m2 stops
Multiple Airlines Logo
7:15 am - 4:15 pmSJU-DEN
12h 00m1 stop
$286Multiple Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 30
United Airlines Logo
11:59 pm - 3:53 pmDEN-VQS
12h 54m2 stops
United Airlines Logo
10:37 am - 6:12 pmVQS-DEN
10h 35m1 stop
$2,754United Airlines
Find Deal
Sat, Nov 22 - Sun, Nov 30
United Airlines Logo
11:50 pm - 3:53 pmDEN-VQS
13h 03m2 stops
United Airlines Logo
10:37 am - 6:12 pmVQS-DEN
10h 35m1 stop
$2,829United Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 30
United Airlines Logo
11:59 pm - 3:53 pmDEN-VQS
12h 54m2 stops
United Airlines Logo
10:37 am - 9:23 pmVQS-DEN
13h 46m2 stops
$3,261United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Denver to Puerto Rico flights

Get data-powered insights and trends into flights from Denver to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Denver to Puerto Rico flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Puerto Rico from Denver found in the last 72 hours was to San Juan, at $486 round-trip. The most popular route is from Denver (DEN) to San Juan Luis Munoz Marin Intl Airport (SJU), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $486.

What is the cheapest month to fly from Denver to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Puerto Rico is August, when tickets cost $338 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $679 and $554 respectively.

What’s the cheapest day of the week to fly from Denver to Puerto Rico?

The average price of all round-trip flights from Denver to Puerto Rico clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Denver to Puerto Rico, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Puerto Rico, Thursday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from Denver to Puerto Rico?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Puerto Rico, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$104
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Denver to San Juan

FAQs - booking Puerto Rico flights

  • What are the passport and visa requirements for United States citizens traveling from Denver to Puerto Rico?

    Travelers in the United States quite often forget that because Puerto Rico is a territory of the United States, there is no need to have either a passport or a visa to travel to this country. Remember that you still need some sort of proper identification to make the flight from Denver to Puerto Rico.

  • What type of child car seat will I need when leaving in a rental car from an airport in Puerto Rico?

    In Puerto Rico, all children under the age of four need to ride in a child safety seat. Any child that is between four years old and eight years old or is under 57 inches tall needs to ride in a booster seat. All children 12 years and younger need to ride in the rear of a vehicle in Puerto Rico. If you do not plan on taking your own car seats with you to Puerto Rico, confirm with your rental car company before traveling to make sure they can rent you appropriate child seats.

  • What other cities are served by San Juan Luis Munoz Marin International Airport?

    Some of the larger towns and cities that you can travel to after a flight to this airport include Caguas, Manati, and Guayama. Though there are smaller regional airports located throughout the country of Puerto Rico, it is quite often much more convenient to fly to the large international airport and then drive yourself or take local transportation to these towns and cities.

  • Is there anything fun for kids to do at the Denver International Airport before a flight?

    This airport offers their program Camp DEN program that allows kids to do activities such as building tents, doing coloring and crossword puzzles, and going on virtual tours of famous Colorado landmarks.

  • How does KAYAK find such low prices on flights from Denver to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Denver to Puerto Rico is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Denver to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Denver to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally in the evening, when round-trip flights cost $288 on average. Morning departures are around 140% more expensive than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally in the morning, which is peak travel time and where the average cost of a ticket is $690.

Top tips for finding cheap flights to Puerto Rico

  • Before your flight to Puerto Rico, you will find airline lounges from American Airlines, Delta Airlines, and United Airlines at the airport in Denver.
  • If you are looking for a quick way to get to the Denver International Airport (DEN) from downtown Denver without driving, a good choice is the A Line commuter train. There are trains roughly every 15min to 30min during the day, and the trip to the airport takes 37min.
  • Quite a few people that travel from Denver to Puerto Rico will go to the largest city in Puerto Rico called San Juan and the San Juan Luis Munoz Marin International Airport (SJU). On this route, some of the fastest trips occur on the one-stop flights aboard Spirit Airlines and Frontier Airlines.
  • If you have traveled to to the San Juan Luis Munoz Marin International Airport and realize you do not need all your luggage in Puerto Rico, this airport offers luggage storage on the second level of Terminal D.
  • If you are planning on traveling to the southern coast of Puerto Rico, the most convenient option for an airport destination is Ponce Mercedita Airport (PSE). Frontier Airlines, Spirit Airlines, and JetBlue all offer one-stop flights from Denver to this airport.

Reviews of the top 5 airlines serving from Denver to Puerto Rico

 
Need help choosing which airline to fly with from Denver to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4236 reviews
8.1Boarding
7.5Entertainment
8.6Crew
8.0Comfort
7.0Food
Airline reviews

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

10.0 ExcellentStacy, Oct 2025SMF - DEN
Read more Southwest reviews

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

mandatory demand customer to check their carry on because not enough people check bags.

Connecting flight is on time and boarding was a breeze!

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

As always, the entire Southwest experience was perfect. Purchasing the tickets on the Southwest web site was effortless, departure and arrival gates were spotless and comfortable, plane was clean and comfortable, crew was excellent and flight was on time. Wheelchair service in Las Vegas at departure was somewhat chaotic and disjointed, but I am not sure if that was Southwest problem, airport problem or combination.

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The only thing to like was that we eventually got to our destination

Delayed delayed delayed and no offer for food or vouchers

Disliked having to wait a little longer to disembark from the plan when we landed in London

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

Very bad! No good service delayed my second connection flight

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

Everything you need to know for your flight from Denver to Puerto Rico

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