PDX - SJU

$135 Find Cheap Flights from Portland to San Juan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to San Juan departing on 3/7. 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 San Juan Luis Munoz Marin Intl Airport

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

Cheapest round-trip
$436
Overall average: $689
American Airlines
Wed 3/4Wed 3/11
PDX - SJU • 1 stop
Cheapest one-way
$167
Typical prices: $248-$298
Frontier
Sat 3/7
PDX - SJU • 2 stops
Top airlines
American Airlines
Cheapest • from $436 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 19% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 San Juan!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to San Juan (PDX-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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to San Juan

Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
11:48 am - 5:24 am
PDX
-
SJU
13h 36m
1 stop
American Airlines Logo
1:23 pm - 11:44 pm
SJU
-
PDX
13h 21m
1 stop
$436American Airlines
Fri, May 1 - Thu, May 14
United Airlines Logo
10:16 pm - 12:04 pm
PDX
-
SJU
10h 48m
1 stop
United Airlines Logo
1:40 pm - 10:54 pm
SJU
-
PDX
12h 14m
1 stop
$440United Airlines
Wed, Apr 1 - Thu, Apr 30
Southwest Logo
6:00 am - 7:30 pm
PDX
-
SJU
10h 30m
2 stops
Southwest Logo
2:00 pm - 12:10 am
SJU
-
PDX
13h 10m
2 stops
$446Southwest
Wed, Apr 1 - Wed, Apr 15
American Airlines Logo
5:38 pm - 9:00 am
PDX
-
SJU
12h 22m
2 stops
American Airlines Logo
11:59 pm - 4:59 pm
SJU
-
PDX
20h 00m
1 stop
$449American Airlines
Tue, Apr 21 - Mon, May 4
American Airlines Logo
7:13 am - 11:02 pm
PDX
-
SJU
12h 49m
2 stops
American Airlines Logo
11:59 pm - 4:59 pm
SJU
-
PDX
20h 00m
1 stop
$450American Airlines
Tue, Apr 21 - Mon, May 4
Multiple Airlines Logo
6:00 am - 5:30 pm
PDX
-
SJU
32h 30m
2 stops
Multiple Airlines Logo
4:11 pm - 1:02 pm
SJU
-
PDX
47h 51m
3 stops
$451Multiple Airlines
Mon, Apr 20 - Mon, May 4
American Airlines Logo
12:59 am - 6:10 pm
PDX
-
SJU
14h 11m
2 stops
American Airlines Logo
5:45 am - 11:53 pm
SJU
-
PDX
21h 08m
1 stop
$452American Airlines
Wed, Mar 4 - Wed, Mar 18
Southwest Logo
6:30 am - 11:10 pm
PDX
-
SJU
12h 40m
2 stops
Southwest Logo
10:10 am - 10:10 pm
SJU
-
PDX
15h 00m
2 stops
$470Southwest
Tue, Mar 31 - Sun, Apr 5
American Airlines Logo
5:40 am - 10:31 pm
PDX
-
SJU
13h 51m
1 stop
American Airlines Logo
6:00 am - 12:22 am
SJU
-
PDX
21h 22m
1 stop
$478American Airlines
Mon, Mar 2 - Mon, Mar 9
Southwest Logo
5:50 am - 12:40 am
PDX
-
SJU
14h 50m
2 stops
Southwest Logo
2:50 pm - 12:45 am
SJU
-
PDX
12h 55m
2 stops
$481Southwest
Booking Insights

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

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 is the cheapest month to fly from Portland 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 round-trip flights from Portland 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 to San Juan Luis Munoz Marin Intl Airport is October, where tickets cost $468 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $781 and $689 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland 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 week.

To get a below average price on the flight from Portland to San Juan Luis Munoz Marin Intl Airport, you should book around 4 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$167
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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 to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Portland to San Juan Luis Munoz Marin Intl Airport was $167 for a one-way ticket and $436 for a round-trip.

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

    A passport is required to fly from Portland to San Juan.

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

    Portland and San Juan are both served by 1 main airport. You will leave Portland from Portland and will be arriving at 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?

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

  • What is the most popular layover when flying to San Juan from Portland?

    Miami is the most popular layover city among KAYAK users traveling from Portland to San Juan.

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

    The two airlines most popular with KAYAK users for flights from Portland to San Juan are Southwest and Delta. With an average price for the route of $632 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 $515 and an overall rating of 7.9.

  • 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.

Reviews of the 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
SouthwestOverall score based on 4275 reviews
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

10.0 ExcellentMeghan, Feb 2026
MCO - DEN
Read more Southwest reviews

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

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

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

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 flight was comfortable and uneventful, which is what I desire

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.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

did not have enough meal for first class passengers so offer us snack

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

Broke my luggage and I can't get a resolution yet.

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

The screens were inoperable for movies and such, but everything else was just fine

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

All of our flights were canceled, though every other airline was flying out and in

We were on the tarmac waiting for a gate at Logan for 40, minutes. The crew handled it well. Can't blame the airline.

That gate is like a ducking shelter at Newark No where to sit Outlets that don’t work Bathrooms that are dirty

Everything was good. On time, boarding fast, flight attendants friendly.

Great, but seats are terrible. Way too cramped for any human.

Spirit has always and will always stink. Absolute worst airline around.

It was smooth sailing snags we had a really smooth landing and a great flight!

I know it's a low-cost airline. However, the seats are very basic, so after two hours of travel, they feel very uncomfortable and cannot be reclined. The two flights from Bogota to Orlando and the return flight were very punctual. The check-in process on the app works very well. I really liked the self-check-in process for luggage at the Orlando airport; it was quick, easy, and very convenient.

The entire experience was so surprisingly pleasant. And the blocked extra seat between us was such an amazing and nice bonus. Great experience all around and I can’t wait to fly with spirit again!

Everything was OK, the deicing took a long time, our connections were almost missed.

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

Information on your arrival and departure airports