Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

PWM - SJU

$146 Find cheap flights from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to San Juan departing on 5/12. 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
Sun 5/26
Sun 6/2

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 Portland to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to San Juan, as well as popular online travel agencies
In the last 7 days travelers have searched 44,335,567 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Portland to San Juan (PWM-SJU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland 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
9:40 am - 10:38 amPWM-SJU
24h 58m1 stop
6:48 am - 10:50 amSJU-PWM
28h 02m1 stop
$146Frontier
Find Deal
Sun, May 12 - Sat, May 18
9:59 am - 1:16 amPWM-SJU
15h 17m1 stop
6:45 am - 9:09 amSJU-PWM
26h 24m1 stop
$280Frontier
Find Deal
Thu, May 16 - Mon, May 20
2:24 pm - 11:59 pmPWM-SJU
9h 35m1 stop
3:34 am - 1:29 pmSJU-PWM
9h 55m1 stop
$336JetBlue
Find Deal
Wed, Jun 5 - Tue, Jun 11
7:54 pm - 2:57 amPWM-SJU
7h 03m1 stop
11:19 am - 6:59 pmSJU-PWM
7h 40m1 stop
$374JetBlue
Find Deal
Tue, Jun 25 - Thu, Jul 4
5:00 am - 1:48 pmPWM-SJU
8h 48m1 stop
12:50 pm - 11:57 pmSJU-PWM
11h 07m1 stop
$382Delta
Find Deal
Mon, May 6 - Wed, May 8
5:05 am - 4:26 pmPWM-SJU
11h 21m1 stop
12:40 pm - 12:19 amSJU-PWM
11h 39m1 stop
$388Delta
Find Deal
Tue, Jun 25 - Wed, Jul 3
5:50 am - 9:34 pmPWM-SJU
15h 44m2 stops
6:00 am - 3:33 pmSJU-PWM
9h 33m1 stop
$417American Airlines
Find Deal
Wed, Jun 5 - Wed, Jun 12
5:29 pm - 12:40 pmPWM-SJU
19h 11m2 stops
6:00 am - 11:05 amSJU-PWM
29h 05m2 stops
$483American Airlines
Find Deal
Wed, Jun 5 - Wed, Jun 12
6:05 am - 1:45 pmPWM-SJU
7h 40m1 stop
9:30 am - 10:46 amSJU-PWM
25h 16m2 stops
$685United Airlines
Find Deal
Sun, May 12 - Sat, May 18
7:15 pm - 9:24 pmPWM-SJU
26h 09m1 stop
1:05 am - 11:58 pmSJU-PWM
22h 53m2 stops
$696United Airlines
Find Deal
Sat, May 25 - Mon, May 27

Flights from Portland to San Juan - Travel Insights & Trends

Get data-powered insights and trends into flights from Portland 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 Portland to San Juan?

The average price of all flights from Portland, Maine 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 Portland to San Juan, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from San Juan, Saturday is the cheapest day to fly and Tuesday is the most expensive.

What is the cheapest month to fly from Portland, Maine 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 Portland, Maine 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 Portland, Maine to San Juan Luis Munoz Marin Intl Airport is October, where tickets cost $394 on average. On the other hand, the most expensive months are November and June, where the average cost of tickets is $621 and $591 respectively.

How far in advance should I book a flight from Portland, Maine 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 Portland, Maine 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 Portland, Maine to San Juan Luis Munoz Marin Intl Airport, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 67 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Portland to San Juan found on KAYAK was with JetBlue for $223. Frontier proposed a round-trip connection from $146 and JetBlue from $336.

Good to know

Low season

May

High season

February

Cheapest flight

$146
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Portland to San Juan

When to book flights from Portland to San Juan

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

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

    In the last 3 days, the lowest price for a flight from Portland, Maine to San Juan Luis Munoz Marin Intl Airport was $223 for a one-way ticket and $146 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Portland and on arrival in San Juan.

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

    When flying out of Portland you will be using Portland. You will be landing at San Juan, also known as San Juan Luis Munoz Marin Intl.

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

    We unfortunately don’t have that data for this specific route.

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

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

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

    The two airlines most popular with KAYAK users for flights from Portland to San Juan are Delta and JetBlue. With an average price for the route of $431 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $408 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Portland 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 Portland to San Juan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Portland 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 Portland 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 Portland with another airline. Booking your flights between Portland 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 Portland 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 Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Portland to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Portland 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 Portland 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 10966 reviews
8.2boarding
7.9comfort
8.0entertainment
8.6crew
7.4food
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

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.

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

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

So so. Terrible aircraft choice for that leg of the flight.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

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

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

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

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

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.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Book cheap flights from Portland to San Juan

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Portland to San Juan found on KAYAK in the last 72 hours.
7/29Mon
1 stopJetBlue
7h 17mPWM-SJU
$223
7/29Mon
2 stopsAmerican Airlines
20h 25mPWM-SJU
$403

Search by stops

Search by airline

Search by price

Portland - San Juan Flights

Departure:

Portland (PWM)United States

Destination:

San Juan (SJU)Puerto Rico

Return flight deals:

San Juan - Portland

Cabin classes: