PDX - SJU

$233 Find Cheap Flights from Portland to San Juan - Compare and Save

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 8/11. 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, 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
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Everything you should know

Cheapest round-trip
$431
Typical prices: $443-$607
Southwest
Tue 9/22Wed 9/23
PDX - SJU • 2 stops
Cheapest one-way
$233
Typical prices: $233-$423
Delta
Tue 8/11
PDX - SJU • 1 stop
Top airlines
Cheapest • from $431 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Portland and San Juan. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $466 (round-trip)
Shortest trip • 9h 28m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
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

Tue, Sep 22 - Wed, Sep 23
Southwest Logo
5:50 am - 9:05 pm
PDX
-
SJU
12h 15m
2 stops
Southwest Logo
5:15 am - 3:00 pm
SJU
-
PDX
12h 45m
2 stops
$431Southwest
Mon, Nov 9 - Tue, Nov 17
Southwest Logo
7:00 pm - 11:45 am
PDX
-
SJU
12h 45m
2 stops
Southwest Logo
5:45 am - 3:00 pm
SJU
-
PDX
13h 15m
2 stops
$436Southwest
Mon, Sep 14 - Sat, Sep 19
Southwest Logo
10:45 pm - 12:50 pm
PDX
-
SJU
11h 05m
1 stop
Southwest Logo
10:25 am - 9:20 pm
SJU
-
PDX
13h 55m
2 stops
$451Southwest
Tue, Sep 22 - Tue, Sep 22
United Airlines Logo
7:10 am - 8:38 pm
PDX
-
SJU
10h 28m
1 stop
United Airlines Logo
1:00 am - 3:56 pm
SJU
-
PDX
17h 56m
2 stops
$461United Airlines
Mon, Nov 9 - Tue, Nov 17
United Airlines Logo
5:00 am - 6:25 pm
PDX
-
SJU
9h 25m
1 stop
United Airlines Logo
2:21 pm - 9:08 pm
SJU
-
PDX
10h 47m
1 stop
$466United Airlines
Wed, Sep 2 - Sat, Sep 12
American Airlines Logo
5:15 am - 9:55 pm
PDX
-
SJU
13h 40m
2 stops
American Airlines Logo
2:22 pm - 11:28 pm
SJU
-
PDX
12h 06m
1 stop
$471American Airlines
Sat, Aug 29 - Thu, Sep 3
JetBlue Logo
11:27 pm - 2:11 pm
PDX
-
SJU
11h 44m
1 stop
JetBlue Logo
1:50 pm - 10:49 pm
SJU
-
PDX
11h 59m
1 stop
$479JetBlue
Mon, Aug 17 - Mon, Aug 24
Southwest Logo
10:45 pm - 12:50 pm
PDX
-
SJU
11h 05m
1 stop
Southwest Logo
5:30 am - 3:00 pm
SJU
-
PDX
12h 30m
1 stop
$481Southwest
Wed, Oct 21 - Sat, Nov 7
American Airlines Logo
11:58 pm - 1:45 pm
PDX
-
SJU
10h 47m
1 stop
American Airlines Logo
6:44 am - 7:15 pm
SJU
-
PDX
16h 31m
1 stop
$486American Airlines
Thu, Oct 8 - Mon, Oct 19
United Airlines Logo
5:00 am - 5:38 pm
PDX
-
SJU
9h 38m
1 stop
United Airlines Logo
2:00 pm - 12:59 am
SJU
-
PDX
13h 59m
2 stops
$487United Airlines
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.

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

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

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 September, where tickets cost $466 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $732 and $676 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 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$233
Best time to beat the crowds with an average 10% drop 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 to San Juan Luis Munoz Marin Intl Airport?

    In the last 5 days, the lowest price for a flight from Portland to San Juan Luis Munoz Marin Intl Airport was $233 for a one-way ticket and $431 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 $489 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $466 and an overall rating of 7.8.

  • 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 4 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.
7.9
SouthwestOverall score based on 4246 reviews
8.6Crew
7.0Food
8.0Comfort
8.1Boarding
7.5Entertainment
Airline reviews

SW can't get their wifi right. I upgrade to insure wifi service but the last two trips had intermittent service. Not worth the extra costs.

6.0 GoodAnonymous, Jun 2026
TPA - DAL
Read more Southwest reviews

SW can't get their wifi right. I upgrade to insure wifi service but the last two trips had intermittent service. Not worth the extra costs.

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

I liked the boarding process with our loading group and numbers. I disliked that I couldn't guarantee our seats together. I didn't like that the Internet costs $8/ flight, but did love all the inflight options available through their app. I disliked no charging station at my seat for a 3+ hour flight.

it was great. the crew is exceptional. the flight was on time.

Great! Although the flight was about 40 minutes delayed, the crew did a good job getting everything boarded quickly and efficiently.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

It was good. The leg room was not great in Row 1.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

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!!!!

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

When we checked in my friend and I were sitting seperate. By the time we got to boarding, they automatically switched our seats. I really liked that.

The flights were on time- Great service Would have liked more options for food choices.

I trust Delta. I travel comfortable. The snacks could improve or could go to something as a little sandwich.

The brakes on the A220 are sensitive and uncomfortably grabby

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

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

My flight was completely full. Making me very stressful with people walking around all the time. I believe airlines can do better for entertain people during the flight.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

The United website was easy to use and had all the information I needed. I needed to change my flight and it was accomplished easily on line. I was also easily able to upgrade and for a reasonable price. Boarding went smoothly and the flight was in time. The service was good in board but the crew did not seem happy at all. Limited availability of meals - not much choice for purchase and in business class they ran out of one of the meal choices by row 4. .

Delayed delayed. Poor professionalism. Our seats changed and we pay for them

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

The plane was broken so we had to change planes.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Uncomfortable seats and flight attendant was rude as she insisted on waking up my husband to ask him if he wanted a drink. When he said that he was sleeping, she replied “without an attitude “. He was seated at 8c

Airlines must do something with overweight people... Maybe reserve a business class seat for them, or you could pay the consequences if someone overweight seat side by side to you in economy.

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The flight itself was fine, but between the man in front of me putting his chair back, and the gentleman next to me who took up 50% of my seat, my back and neck are destroyed from the flight. I’m hoping for a better outcome flying back.

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

Information on your arrival and departure airports