SJU - DEN

$110 Find Cheap Flights from San Juan to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to Denver departing on 4/29. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Denver.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Denver.
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Everything you should know

Cheapest round-trip
$203
Typical prices: $215-$503
Frontier
Fri 2/13Thu 2/19
SJU - DEN • 1 stop
Cheapest non-stop
$551
Typical prices: $576-$726
United Airlines
Wed 7/8Wed 7/15
SJU - DEN • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
San Juan Airport is efficient for departures.
DEN offers a 40-minute train ride to downtown.
Expert advice
Expert advice
Expert advice
Expert advice
When to travel
March
Cheapest • 20% price drop
December
Most popular
Good to know
Good to know
+1
+1
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Juan to Denver (SJU-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan to Denver 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 San Juan to Denver

Fri, Feb 13 - Thu, Feb 19
Frontier Logo
3:53 am - 7:55 am
SJU
-
DEN
31h 02m
1 stop
Frontier Logo
7:24 pm - 2:53 am
DEN
-
SJU
28h 29m
1 stop
$203Frontier
Tue, Feb 24 - Thu, Mar 5
Frontier Logo
3:53 am - 7:55 am
SJU
-
DEN
31h 02m
1 stop
Frontier Logo
10:44 am - 12:41 am
DEN
-
SJU
10h 57m
1 stop
$204Frontier
Thu, Feb 12 - Mon, Feb 16
Frontier Logo
6:00 am - 7:11 pm
SJU
-
DEN
16h 11m
1 stop
Frontier Logo
11:59 pm - 2:48 am
DEN
-
SJU
23h 49m
1 stop
$211Frontier
Sat, Feb 14 - Sat, Feb 21
Frontier Logo
7:54 pm - 7:55 am
SJU
-
DEN
15h 01m
1 stop
Frontier Logo
11:59 pm - 2:53 am
DEN
-
SJU
23h 54m
1 stop
$214Frontier
Mon, Feb 16 - Tue, Feb 24
Frontier Logo
3:53 am - 10:59 pm
SJU
-
DEN
22h 06m
1 stop
Frontier Logo
9:25 am - 12:43 am
DEN
-
SJU
12h 18m
1 stop
$216Frontier
Thu, Feb 19 - Sun, Feb 22
Frontier Logo
6:00 am - 7:11 pm
SJU
-
DEN
16h 11m
1 stop
Frontier Logo
12:59 am - 3:02 pm
DEN
-
SJU
11h 03m
1 stop
$217Frontier
Mon, Mar 2 - Tue, Mar 10
Frontier Logo
6:00 am - 9:11 am
SJU
-
DEN
30h 11m
1 stop
Frontier Logo
11:59 pm - 1:58 am
DEN
-
SJU
23h 59m
1 stop
$218Frontier
Wed, Mar 4 - Wed, Mar 11
Frontier Logo
5:25 pm - 7:55 am
SJU
-
DEN
17h 30m
1 stop
Frontier Logo
11:49 pm - 1:21 am
DEN
-
SJU
23h 32m
1 stop
$219Frontier
Thu, Feb 26 - Tue, Mar 3
Frontier Logo
7:09 pm - 3:02 pm
SJU
-
DEN
22h 53m
1 stop
Frontier Logo
6:20 pm - 2:53 am
DEN
-
SJU
29h 33m
1 stop
$220Frontier
Wed, Feb 25 - Thu, Mar 5
Frontier Logo
3:53 am - 6:20 pm
SJU
-
DEN
17h 27m
1 stop
Frontier Logo
10:44 am - 12:41 am
DEN
-
SJU
10h 57m
1 stop
$222Frontier
Booking Insights

KAYAK's insights & trends for San Juan to Denver flights

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

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Denver departing in February.

What’s the cheapest day of the week to fly from San Juan to Denver?

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to Denver clicked on KAYAK for each day over the last 12 months.

For San Juan to Denver, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver back to San Juan, the best deals are generally found on Tuesday, with Saturday being the most expensive.

What is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Denver, 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 San Juan Luis Munoz Marin Intl Airport to Denver is March, where tickets cost $364 (return) on average. On the other hand, the most expensive months are May and January, where the average cost of round-trip tickets is $548 and $521 respectively.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Denver, 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 San Juan Luis Munoz Marin Intl Airport to Denver, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from San Juan to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Good to know

Low seasonSeptember
Cheapest flight$110
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 10% increase in price.
Flight from San Juan to Denver

When to book flights from San Juan to Denver

Are your dates flexible? Find out the best times to travel from San Juan to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Juan to Denver flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Denver?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Denver was $110 for a one-way ticket and $203 for a round-trip.

  • Do I need a passport to fly between San Juan and Denver?

    Yes, you’ll need a passport to travel to Denver from San Juan.

  • Which airlines offer Wi-Fi service onboard planes from San Juan to Denver?

    Only Delta offers inflight Wi-Fi service on the San Juan to Denver flight route.

  • Which aircraft models fly most regularly from San Juan to Denver?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the San Juan to Denver flight route.

  • Which airline alliances offer flights from San Juan to Denver?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between San Juan and Denver, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from San Juan to Denver?

    There are nonstop flights from San Juan to Denver on a daily basis.

  • Which is the best airline for flights from San Juan to Denver, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Juan to Denver are Southwest and Delta. With an average price for the route of $552 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $555 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Juan to Denver?

    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 San Juan to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from San Juan 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 San Juan to Denver?

    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 to Denver with an airline and back to San Juan with another airline. Booking your flights between San Juan and DEN can sometimes prove cheaper using this method.

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

    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 to Denver from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Juan Luis Munoz Marin Intl Airport to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $304 or less one-way and $474 or less round-trip.

Prefer to fly direct from San Juan to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Juan Luis Munoz Marin Intl to Denver Intl.
Find which airlines fly direct from San Juan Luis Munoz Marin Intl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

San Juan Luis Munoz Marin Intl to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Denver Intl to San Juan Luis Munoz Marin Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from San Juan to Denver

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Juan to Denver? 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 4267 reviews
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Flight from MEX to ATL had to divert to Tampa. When we got off the plane, there were non directions on what to do. Nearly 30 minutes just standing around. Finally told to go through security with no boarding passes, and turned away. Then told to to go back. Took forever to leave Tampa for ATL. Missed my connection to Harrisburg.

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

We were upgraded to Business Class. So comfortable with great service and food options

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

Everything you need to know for your flight from San Juan to Denver

Information on your arrival and departure airports