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DEN - SJU

Find cheap flights from Denver to San Juan from $109

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 San Juan departing on 5/8. 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
0 bags
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights to San Juan

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to San Juan.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to San Juan.
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

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Cheap flight deals from Denver to San Juan (DEN-SJU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to San Juan 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 and deals for you by selecting your travel dates.
Choose your dates
4:12 pm - 3:23 amDEN-SJU
9h 11m1 stop
8:17 pm - 9:26 amSJU-DEN
15h 09m1 stop
$178Frontier
Find Deal
Fri, May 10 - Sat, May 18
8:11 am - 11:06 pmDEN-SJU
12h 55m2 stops
8:15 pm - 12:58 amSJU-DEN
30h 43m1 stop
$184Frontier
Find Deal
Mon, May 6 - Wed, May 15
12:21 am - 1:56 amDEN-SJU
23h 35m1 stop
8:15 pm - 12:58 amSJU-DEN
30h 43m1 stop
$185Frontier
Find Deal
Sun, May 5 - Wed, May 15
12:21 am - 2:19 amDEN-SJU
23h 58m1 stop
8:17 pm - 12:53 amSJU-DEN
30h 36m1 stop
$186Frontier
Find Deal
Thu, May 9 - Sat, May 18
12:21 am - 1:56 amDEN-SJU
23h 35m1 stop
11:33 am - 1:03 amSJU-DEN
15h 30m1 stop
$195Frontier
Find Deal
Mon, May 6 - Sat, May 11
11:59 pm - 7:27 pmDEN-SJU
17h 28m1 stop
6:43 pm - 10:02 amSJU-DEN
17h 19m1 stop
$198Frontier
Find Deal
Fri, May 17 - Wed, May 22
12:21 am - 1:56 amDEN-SJU
23h 35m1 stop
3:09 am - 3:54 pmSJU-DEN
14h 45m1 stop
$203Frontier
Find Deal
Mon, May 6 - Fri, May 10
12:21 am - 11:50 pmDEN-SJU
21h 29m1 stop
8:15 pm - 12:58 amSJU-DEN
30h 43m1 stop
$208Frontier
Find Deal
Thu, May 9 - Wed, May 15
1:14 pm - 12:03 amDEN-SJU
8h 49m1 stop
3:34 am - 12:14 pmSJU-DEN
10h 40m1 stop
$272JetBlue
Find Deal
Fri, May 17 - Sat, May 25
6:05 pm - 4:48 pmDEN-SJU
20h 43m2 stops
5:00 am - 4:55 pmSJU-DEN
13h 55m2 stops
Sat, May 25 - Sat, Jun 1

Flights from Denver to San Juan - Travel Insights & Trends

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

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

The average price of all flights from Denver to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Denver to San Juan, look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from San Juan, Thursday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Denver to San Juan Luis Munoz Marin Intl Airport, 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 San Juan Luis Munoz Marin Intl Airport is April, where tickets cost $283 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $538 and $500 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Denver to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Denver to San Juan Luis Munoz Marin Intl Airport, you should book around 5 days before departure. For the absolute cheapest price, our data suggests you should book 62 days before departure.

Which airlines provide the cheapest flights from Denver to San Juan?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to San Juan from Denver were found on Frontier ($109) and United Airlines ($293), and the lowest round-trip tickets were found on Frontier ($178) and JetBlue ($272).

Which airlines fly non-stop between Denver and San Juan Luis Munoz Marin Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Denver to San Juan Luis Munoz Marin Intl Airport.
There is just one airline that flies from Denver to San Juan Luis Munoz Marin Intl Airport direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $413.

How many flights are there between Denver and San Juan Luis Munoz Marin Intl Airport per day?

There is a maximum of 1 nonstop flight a day that takes off from Denver and lands in San Juan Luis Munoz Marin Intl Airport, with an average flight time of 5h 40m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 7 flights.

Which cabin class options are there for flights between Denver and San Juan Luis Munoz Marin Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Denver to San Juan take?

Direct flights take on average 5h 40m to travel the 2,730 miles between Denver and San Juan.

What’s the earliest departure time from Denver to San Juan?

Early birds can take the earliest flight from Denver at 9:48 am and will be landing in San Juan Luis Munoz Marin Intl Airport at 5:28 pm.

What’s the latest departure time from Denver to San Juan?

If you prefer to fly at night, the latest flight from Denver to San Juan Luis Munoz Marin Intl Airport jets off at 9:50 am and lands at 5:30 pm.

Good to know

Low season

September

High season

May

Cheapest flight

$109
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Denver to San Juan

When to book flights from Denver to San Juan

Are your dates flexible? Find out the best times to travel from Denver to San Juan 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 Denver to San Juan flights

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

    In the last 3 days, the lowest price for a flight from Denver to San Juan Luis Munoz Marin Intl Airport was $109 for a one-way ticket and $178 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Denver to San Juan?

    Denver airport is called Denver Intl and the only airport in San Juan is San Juan Luis Munoz Marin Intl.

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Denver to San Juan flight route.

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

    Star Alliance is the only airline alliance operating flights between Denver and San Juan.

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

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

  • Which is the best airline for flights from Denver to San Juan, JetBlue or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to San Juan are JetBlue and United Airlines. With an average price for the route of $517 and an overall rating of 7.6, JetBlue is the most popular choice. United Airlines is also a great choice for the route, with an average price of $669 and an overall rating of 7.4.

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

    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 San Juan.

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

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

    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 San Juan with an airline and back to Denver with another airline. Booking your flights between Denver and SJU 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 Denver to San Juan?

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

See more FAQs

Top tips for finding a cheap flight from DEN to San Juan

  • Looking for a cheap flight? 25% of our users found flights on this route for $357 or less one-way and $600 or less round-trip.

Prefer to fly non-stop from Denver to San Juan?

Find which airlines fly direct from Denver Intl to Luis Munoz Marin Intl, which days they fly and book direct flights.

Nonstop departures

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

Nonstop returns

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
See more direct flights

Top 5 airlines serving from Denver to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Denver to San Juan. 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 Denver to San Juan? 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
DeltaOverall score based on 11004 reviews
8.0entertainment
7.5food
8.2boarding
7.9comfort
8.6crew
Airline reviews

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

2.0 MediocreMarisol, Apr 2024DFW - ATL
Read more about Delta reviews

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

They did a fine job. Can't wait to use Delta in the future.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Terrible. Flight was cancelled due to the weather in the east and sout east(florida). Did not get any compesation of any kind. According to them, it was not under their control so I lost all the money paid for the 2 fairs from Raleigh, NC to Orlando, Fl.

great flight. Pilot was communicative, flight attendants were excellent. Really nice experience except my tv didn’t work.

Overall, the flight was better than the flight I took to go to Florida, which had a bunch of problems. The crew is really nice and the plane was new so it had a small problem when we were on the runway, but the flight itself was great. They even made some time back up, which is always a good thing.

at the time for boarding the lady just call Group A and no other goups and everybody from A to F go inside without the right turn,and when we get in theres no more spsce for carry on , the ones that get in at not correct group from the back occupy our space !!!!! a mess !!!!

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

I had back trouble prior to my flight and everyone was great about helping me.

Jetblue needs to improve on Onboarding as it seems to always be behind on departing. It never leaves on time. I would recommend to have an earlier Onboarding in order to leave on time and respect your customers time as well.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

Good dinner and nice plane.Smootz flight. Breakfast had no sweet option. Seats hardly reclined.

Too many fees (but that seems to apply to all airlines nowadays)

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Wheelchair assistance was not complete. The person left me at the departure gate without informing the groundstaff of my requirements. I had to walk to the departure counter to ask for help to reach the plane door. The crew informed me that in future they were not allowed to help passengers like me, senior citizen and Wheelchair passenger with placing their carry on bags in the overhead compartments!

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Seats are way too snug for my hip to knee ratio and the recline on the seat in front of me made my experience worst. My legs had no room at all. Not a plane for people 6 ft or over unless you fly first class.

Delayed for maintenance issue?? Should have been addressed before boarding. Put my bag on an earlier flight, but didn’t ask if I wanted to change to an earlier flight. Arrived to find my bag locked up and no agent to be found when I landed.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

Ac was broken so we deplaned, waited 2 hours, taxiing for takeoff they said the plane would not fly so we went back to the gate and got a new plane which took another hour. In all a 4 hour delay for an 80 min flight.

Left Denver late, then sat on tarmac 30 min after arrival

Everything was good, 20/30 minutes late waiting on a crew member. It’s hard to keep employees. Or serious employees I know. I remember one flight from Houston of Frontiers was almost 18 hours late. And another 4 hours late very poor. But I would rather be late and safe than the on the news. Thank you.

Bought seats on the flight and they were supposed to be 2 and a jumpseat. Plane clearly changed and it was a regular 3 seat row. Asked for a refund and was denied. If I wanted to sit next to someone else I wouldn't have bought the seats..

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

It’s a cheap airline and I wish if they had better seats.

Seats are cramped and uncomfortable. You have to pay for everything and it is very expensive.

For a busy travel season, everything was clearly marked, correct, and smooth. My favorite travel description is “UNEVENTFUL,” and this trip met the mark!

The flight and crew were fine. When we (several groups) arrived in Norfolk on Sunday we discovered our bags had not arrived. The staff at norfolk airport was less than helpful. Told us our bags wouldn't arrive until Thursday. When asked what happened they said it bags never made it on the plane and it happened all the time. When asked about reimbursement for replacement items the desk agent said we could try to submit receipts online, but they weren't sure we would be reimbursed. I understand this is a low cost airline, but this was really beyond poor customer service.

Got ripped off by chatdeal. For 318 would like my money back. Neal. Did not take flight

Frontier is a no-frills airlines were the focus is low cost. You get basic service so don't set your expectations high. Watch out thought because this airline, like a few others, will try to nickel and dime you.

Book cheap flights from Denver to San Juan

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Denver to San Juan found on KAYAK in the last 72 hours.
5/8Wed
1 stopFrontier
11h 55mDEN-SJU
$109
4/29Mon
1 stopFrontier
9h 41mDEN-SJU
$117
5/5Sun
1 stopFrontier
8h 24mDEN-SJU
$122
4/29Mon
2 stopsFrontier
12h 55mDEN-SJU
$129
5/4Sat
3 stops
22h 30mDEN-SJU
$143
5/13Mon
2 stops
26h 54mDEN-SJU
$172
5/21Tue
2 stopsUnited Airlines
15h 42mDEN-SJU
$293
5/29Wed
2 stopsAmerican Airlines
12h 16mDEN-SJU
$296
6/1Sat
1 stopAmerican Airlines
11h 05mDEN-SJU
$297
5/4Sat
2 stopsUnited Airlines
19h 40mDEN-SJU
$299

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Last minute flights from Denver to San Juan

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Denver to San Juan that are departing in the next 10 days.
4/27Sat
multi-stopFrontier
10h 11mDEN-SJU
4/30Tue
multi-stopFrontier
15h 22mSJU-DEN
$246
4/27Sat
multi-stopFrontier
16h 08mDEN-SJU
4/30Tue
multi-stopFrontier
22h 18mSJU-DEN
$265
4/25Thu
multi-stopFrontier
8h 19mDEN-SJU
5/1Wed
multi-stopFrontier
11h 17mSJU-DEN
$276
4/29Mon
multi-stopFrontier
12h 55mDEN-SJU
5/5Sun
multi-stopFrontier
22h 18mSJU-DEN
$278
4/25Thu
multi-stopUnited Airlines
25h 01mDEN-SJU
5/3Fri
multi-stopUnited Airlines
17h 47mSJU-DEN
$670
4/27Sat
multi-stopUnited Airlines
16h 10mDEN-SJU
4/30Tue
multi-stopUnited Airlines
19h 09mSJU-DEN
$671
4/27Sat
multi-stopJetBlue
10h 53mDEN-SJU
4/30Tue
multi-stopJetBlue
10h 40mSJU-DEN
$776
4/27Sat
multi-stopAmerican Airlines
18h 37mDEN-SJU
5/1Wed
multi-stopAmerican Airlines
10h 38mSJU-DEN
$856
4/26Fri
multi-stopAmerican Airlines
13h 55mDEN-SJU
5/1Wed
multi-stopAmerican Airlines
12h 29mSJU-DEN
$877
4/29Mon
multi-stopDelta
10h 32mDEN-SJU
5/7Tue
multi-stopDelta
16h 16mSJU-DEN
$8,027

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Denver - San Juan Flights

Departure:

Denver (DEN)United States

Destination:

San Juan (SJU)Puerto Rico

Return flight deals:

San Juan - Denver

Cabin classes:

$1,513
$1,849
$2,608
$510