San Juan

$182+ Cheap flights from Portland (PDX) to San Juan

PDX — SJU
Dec 8 — Dec 151
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Cheap flight deals from Portland to San Juan

Cheapest flights from Portland to San Juan

Mon 12/77:00 am -
1 stop14h 58m
Sun 12/133:28 am -
1 stop21h 14m
Deal found 11/3$405
Wed 12/27:00 am -
1 stop14h 58m
Tue 12/83:28 am -
1 stop21h 14m
Deal found 11/4$411
Tue 12/87:15 am -
1 stop13h 52m
Tue 12/155:01 am -
1 stop19h 30m
Deal found 11/3$456
Thu 12/37:00 am -
1 stop14h 58m
Wed 12/93:28 am -
1 stop21h 14m
Deal found 11/5$487
Mon 12/147:00 am -
1 stop14h 58m
Thu 12/172:29 am -
1 stop22h 05m
Deal found 11/5$537
Sun 12/612:51 pm -
2 stops20h 38m
Thu 12/105:01 am -
2 stops17h 55m
Deal found 11/3$538
Sun 12/67:15 am -
1 stop13h 52m
Wed 12/93:28 am -
1 stop21h 14m
Deal found 11/3$551
Tue 12/86:00 am -
2 stops11h 55m
Tue 12/1512:30 pm -
2 stops14h 55m
Deal found 11/3$556
Sun 12/137:00 am -
1 stop14h 58m
Wed 12/162:29 am -
1 stop22h 05m
Deal found 11/3$558
Wed 12/210:10 am -
2 stops10h 40m
Wed 12/912:30 pm -
2 stops13h 50m
Deal found 11/5$566

Find flight deals from Portland to San Juan

Round-trip from

$405
(WAYA)

One-way from

$182
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$649
From Portland to San Juan
One-way flight from Portland to San Juan
Highest demand for flights based on searches. 11% potential increase in price ($76 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Portland to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Mon 2/8

10:33 pm-12:49 pm

1 stop10h 16m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$293

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Thu 12/10

7:44 am-12:11 am

1 stop12h 27m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$293

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Fri 1/29

7:10 am-9:00 pm

1 stop9h 50m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$293

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Tue 1/12

5:00 am-6:25 pm

1 stop9h 25m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$293

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Fri 1/29

6:20 am-11:58 pm

2 stops13h 38m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$293

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Wed 1/13

6:20 am-12:58 am

2 stops14h 38m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$293

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Thu 4/8

7:40 pm-1:15 pm

2 stops14h 35m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$293

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Sat 1/30

1:18 pm-6:25 pm

3 stops25h 07m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$339

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Tue 12/15

7:00 am-12:36 am

2 stops13h 36m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$343
Quickest round-trip

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Sat 1/2

4:28 pm-5:21 am

1 stop8h 53m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-8:00 pm

Nonstop0h 00m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Portland to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Portland with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

What is the cheapest month to book a flight from Portland to San Juan?

Currently, September is the cheapest month in which you can book a flight from Portland to San Juan (average of $466). Flying from Portland to San Juan in December is currently the most expensive (average of $779). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Portland to San Juan?

Airfare is below average for this route at the moment.
Portland to San Juan flights typically cost between $592 and $755 in December.
The cheapest round-trip price found within the last 5 days was $405 on Multiple Airlines (Dec 7-Dec 13).

How far ahead should I book a flight from Portland to San Juan?

The price you pay for your flight from Portland to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing San Juan

Read through reviews of airlines operating flights from Portland to San Juan, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • What airport do you fly from for flights from Portland to San Juan?

    Located just 6.0 mi from the city center, Portland is the airport most travelers will use when flying to San Juan from Portland. Booking flights from Portland (PDX) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 4 different airlines.

  • How long is the flight from Portland to San Juan?

    United Airlines, Delta, and American Airlines can get you from Portland to San Juan in just under 10h 24m. Your travel time can differ by up to 8h 12m. Portland and San Juan are separated by a distance of 3710 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland to San Juan round-trip?

    According to our current data, Delta ($235), Southwest ($408), and American Airlines ($414) offers the cheapest pricing from Portland to San Juan. Delta is currently priced 60% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland to San Juan one-way?

    The cheapest airlines for a one-way flight from Portland to San Juan are American Airlines ($207), United Airlines ($218), and Southwest ($220).

  • Can I find deals for flights from Portland to San Juan that include hotel bookings?

    Yes. In addition to deals on Portland to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to San Juan.

  • Can I find deals for business class flights from Portland to San Juan?

    Yes. Cheapflights offers flight deals from Portland to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Portland to San Juan (average of $466). Flying from Portland to San Juan in December is currently the most expensive (average of $779). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portland to San Juan

Top 4 airlines flying from Portland to San Juan

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$235Average$493FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$408Average$536FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$414Average$637FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$440Average$599FlexibilityNo cancel feeOn-time69%

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