Cheap Flights from Portland to San Juan

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Compare Portland to San Juan flight deals

Find the cheapest month or even day of the year to fly to San Juan

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Flight deals from Portland to San Juan

Looking for a cheap last-minute deal or the best return flight from Portland Airport to San Juan? If you want to travel next month, return fares start from $867. Find the lowest prices on one-way and return tickets right here.

San Juan.$870 per passenger.Departing Mon, 19 Oct, returning Fri, 23 Oct.Return flight with United.Outbound indirect flight with United, departs from Portland on Mon, 19 Oct, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Fri, 23 Oct, arriving in Portland.Price includes taxes and charges.From $870, select.

San Juan.$871 per passenger.Departing Wed, 4 Nov, returning Sat, 7 Nov.Return flight with United.Outbound indirect flight with United, departs from Portland on Wed, 4 Nov, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Sat, 7 Nov, arriving in Portland.Price includes taxes and charges.From $871, select.

San Juan.$871 per passenger.Departing Wed, 20 Jan, returning Wed, 27 Jan.Return flight with United.Outbound indirect flight with United, departs from Portland on Wed, 20 Jan, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Wed, 27 Jan, arriving in Portland.Price includes taxes and charges.From $871, select.

San Juan.$872 per passenger.Departing Mon, 8 Feb, returning Fri, 12 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Mon, 8 Feb, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Fri, 12 Feb, arriving in Portland.Price includes taxes and charges.From $872, select.

San Juan.$872 per passenger.Departing Sun, 6 Dec, returning Sat, 12 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Sun, 6 Dec, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Sat, 12 Dec, arriving in Portland.Price includes taxes and charges.From $872, select.

San Juan.$872 per passenger.Departing Thu, 29 Oct, returning Mon, 2 Nov.Return flight with United.Outbound indirect flight with United, departs from Portland on Thu, 29 Oct, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Mon, 2 Nov, arriving in Portland.Price includes taxes and charges.From $872, select.

San Juan.$889 per passenger.Departing Tue, 23 Feb, returning Tue, 2 Mar.Return flight with United.Outbound indirect flight with United, departs from Portland on Tue, 23 Feb, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Tue, 2 Mar, arriving in Portland.Price includes taxes and charges.From $889, select.

San Juan.$906 per passenger.Departing Fri, 30 Apr, returning Fri, 7 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 30 Apr, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Fri, 7 May, arriving in Portland.Price includes taxes and charges.From $906, select.

San Juan.$908 per passenger.Departing Wed, 3 Mar, returning Mon, 8 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 3 Mar, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Mon, 8 Mar, arriving in Portland.Price includes taxes and charges.From $908, select.

San Juan.$908 per passenger.Departing Wed, 14 Apr, returning Wed, 28 Apr.Return flight with United.Outbound indirect flight with United, departs from Portland on Wed, 14 Apr, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Wed, 28 Apr, arriving in Portland.Price includes taxes and charges.From $908, select.

San Juan.$908 per passenger.Departing Sat, 8 May, returning Sat, 15 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Sat, 8 May, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Sat, 15 May, arriving in Portland.Price includes taxes and charges.From $908, select.

San Juan.$1,042 per passenger.Departing Mon, 28 Sep, returning Fri, 9 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Mon, 28 Sep, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Fri, 9 Oct, arriving in Portland.Price includes taxes and charges.From $1,042, select.

San Juan.$1,089 per passenger.Departing Fri, 22 Jan, returning Sun, 7 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Fri, 22 Jan, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Southwest Airlines, departs from San Juan Luis Munoz Marin on Sun, 7 Feb, arriving in Portland.Price includes taxes and charges.From $1,089, select.

San Juan.$1,235 per passenger.Departing Fri, 20 Nov, returning Wed, 2 Dec.Return flight with United.Outbound indirect flight with United, departs from Portland on Fri, 20 Nov, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Wed, 2 Dec, arriving in Portland.Price includes taxes and charges.From $1,235, select.

San Juan.$1,268 per passenger.Departing Fri, 25 Sep, returning Tue, 29 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Fri, 25 Sep, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Southwest Airlines, departs from San Juan Luis Munoz Marin on Tue, 29 Sep, arriving in Portland.Price includes taxes and charges.From $1,268, select.

San Juan.$1,782 per passenger.Departing Mon, 28 Dec, returning Wed, 6 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Mon, 28 Dec, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Wed, 6 Jan, arriving in Portland.Price includes taxes and charges.From $1,782, select.

Find the cheapest month to fly from Portland to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to San Juan flights are currently cheapest in October.

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Alternative Portland to San Juan routes

Looking for the cheapest, fastest or easiest route from Portland to San Juan? You could fly into the following airports instead.

Portland to San Juan: Flight information

The things to know before you go.

Cheapest flight found	$870
Cheapest month to fly	October

Finding cheap flights from Portland to San Juan: Frequently asked questions

How many airports are there in San Juan?

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.

How much are return flights from Portland to San Juan?

The best price we found for a return flight from Portland to San Juan is $870. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Portland to San Juan?

Currently, there are no airlines that fly direct from Portland to San Juan. But we found flights with one or more stops from $870.

How many flights are there a week from Portland to San Juan?

As of September 2026, there are no flights flying from Portland to San Juan.

When is the cheapest time to fly from Portland to San Juan?

The cheapest month to fly from Portland to San Juan is usually October.

Which is the cheapest airport to fly into in San Juan?

If you're flying from Portland Airport, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the centre of San Juan. We've found flights into this airport from $870.

Which upcoming date is cheapest to fly from Portland Airport to San Juan on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to San Juan on Monday, 19 October 2026.

Can I get a direct flight from Portland Airport to San Juan?

No airlines currently offer direct flights between Portland Airport and San Juan. Most routes have one or more stops.

How can I get the best flight deal from Portland Airport to San Juan?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to San Juan?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in San Juan?

In September, the average temperature is usually around 28°C. August is typically the warmest month in San Juan, when it usually averages around 30°C. You can expect the least rain in January. The coldest month is February, with temperatures averaging 22°C. The rainiest month is September.

Which is the cheapest airline to fly from Portland Airport to San Juan with?

Currently, United offers the cheapest flight tickets to San Juan.

Travelling from Portland International Airport (PDX) to San Juan: what you need to know

San Juan is four hours ahead of Portland, where Portland International Airport is located. San Juan runs on the UTC-4 timezone.
To avoid rushing for your PDX to San Juan flight, allow plenty of time to check in and drop off your luggage. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.
During popular months such as July, it's wise to get to the airport earlier than usual. Arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during peak periods in general.
Consider adding a stopover to potentially land a cheaper plane ticket from PDX to San Juan. All you need to do is deselect 'Direct flights only' during your search. Break up your trip (and maybe save some cash) by stopping at one of these airports:
- Dallas Fort Worth International Airport (DFW)
- Denver International Airport (DEN)
- Washington Dulles International Airport (IAD)
Located around 10 kilometres from central Portland, PDX can be reached in about 20 minutes by car, depending on traffic. The journey on public transport will take roughly 40 minutes.
Searching for a hotel near PDX? If you're boarding an early flight from Portland International Airport to San Juan, these accommodation options set you up for a seamless send-off:
Portland International Airport earns top marks for its on-time performance. 83% of flights that take off from PDX arrive at their destination as scheduled.
You'll find PDX at 7000 NE Airport Way.

How to find the cheapest flights from Portland International Airport (PDX) to San Juan

$435 is currently the lowest price for a one-way Portland International Airport to San Juan flight. Return plane tickets start from $870. These prices may change depending on demand.
Don't leave things to the last moment. You're more likely to find cheap flights from PDX to San Juan if you book ahead. Airlines often have some great early bird deals.
If you can be flexible with your trip dates, check out the 'Whole month' tool. It'll show you the lowest price across every month when searching for your Portland International Airport to San Juan ticket.
You don't need to check every day to find out if fares have dropped when you set up a Price Alert. We'll update you when there's an extra saving on cheap flights from PDX to San Juan.
Pick your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Portland International Airport to San Juan by 'Fastest,' 'Cheapest' or 'Best.'

Airports in San Juan

Luis Munoz Marin International Airport (SJU)

The distance from Luis Munoz Marin International Airport (SJU) to central San Juan is roughly 11 kilometres. It'll take you around 20 minutes to reach the centre driving.
It typically takes 1 hour if you're travelling by public transport.
If you have a late flight from Portland International Airport to San Juan, nothing beats the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and sleeping soon after at one of these hotels near SJU:
Booking your vehicle from Luis Munoz Marin International Airport around two weeks before your flight from PDX to San Juan can help you lock in the best possible rate.

Best time to go to San Juan

December is the quietest month for flights from Portland International Airport to San Juan, while March is the most popular. Work out the ideal time to visit San Juan based on whether you want a laid-back vibe or a more bustling atmosphere.
When booking your Portland International Airport to San Juan plane ticket, think about what kind of weather you prefer. August is the warmest month in San Juan, with temperatures ranging from 24ºC to 32ºC.
For cooler conditions, search for a cheap ticket from PDX to San Juan in February when temperatures average between 21ºC and 28ºC.

More about San Juan

When it comes to looking for somewhere to rest your head, you'll find the top stays in San Juan right here. Browse these options as soon as you've booked your flight from Portland International Airport to San Juan:
There are so many things to see and do in this city it can be hard to figure out where to begin. Esperanza Beach, Balneario El Escambron and Escambron Green are top sights which should feature on any good San Juan itinerary.

Explore more of Puerto Rico

You've done San Juan, now it's time to explore other corners of Puerto Rico. Journey around 113 kilometres west to Aguadilla to tick off its must-visit sights. From Silla Aguadilla to Bridges Surf Beach and Playa Rompe Olas, you've got a jam-packed schedule ahead.
Around 105 kilometres west of San Juan, Isabela is another essential stop in Puerto Rico. Experience major highlights starting with Playa montones, Shore Island Beach and Guajataca Forest Reserve.