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San Juan

$144+ Cheap flights from Portland (PDX) to San Juan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJU
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to San Juan are usually found in September or October, booked 85 days in advance, depart on a Tuesday or Saturday and return on a Thursday

Cheap flight deals from Portland to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 31, 2025.

Round-trip from

$323
(Mytrip)

One-way from

$144
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$795
From Portland to San Juan
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One-way flight from Portland to San Juan
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Highest demand for flights based on searches. 11% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Portland to San Juan

Cheapest flights from Portland to San Juan
Explore the most affordable flight options available from Portland to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:01 pmPDX - SJU
2 stops25h 38mSpirit Airlines
Mon 4/2812:54 amSJU - PDX
2 stops39h 43mSpirit Airlines
Deal found 3/30$325
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/255:35 amPDX - SJU
2 stops15h 07mDelta
Sat 5/317:00 amSJU - PDX
2 stops18h 20mDelta
Deal found 3/30$369
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/27:41 pmPDX - SJU
2 stops15h 04mUnited Airlines
Fri 9/51:05 amSJU - PDX
1 stop10h 48mUnited Airlines
Deal found 3/30$393
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/19:38 pmPDX - SJU
1 stop10h 32mAmerican Airlines
Fri 6/68:00 amSJU - PDX
1 stop15h 48mAmerican Airlines
Deal found 3/30$417
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/171:37 pmPDX - SJU
2 stops26h 30mMultiple Airlines
Sat 5/242:50 pmSJU - PDX
1 stop29h 41mMultiple Airlines
Deal found 3/30$464
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:15 amPDX - SJU
2 stops14h 00mSouthwest
Sun 11/165:40 amSJU - PDX
2 stops13h 25mSouthwest
Deal found 3/30$560

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
Use the filters below to find and compare flights from Portland to San Juan that are best for you.

Fly from

Portland

Fly to

San Juan

Route

Depart

Return

Price

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 4/23

7:01 pm-11:39 pm

2 stops25h 38m

San Juan Luis Munoz Marin Intl

Mon 4/28

12:54 am-1:37 pm

2 stops39h 43m

$325

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sun 5/25

5:35 am-11:42 pm

2 stops15h 07m

San Juan Luis Munoz Marin Intl

Sat 5/31

7:00 am-10:20 pm

2 stops18h 20m

$369

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sun 6/1

9:38 pm-11:10 am

1 stop10h 32m

San Juan Luis Munoz Marin Intl

Fri 6/6

8:00 am-8:48 pm

1 stop15h 48m

$417

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 4/23

11:00 pm-1:45 pm

1 stop11h 45m

San Juan Luis Munoz Marin Intl

Tue 4/29

2:55 pm-11:14 pm

1 stop11h 19m

$423

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sat 5/17

1:37 pm-7:07 pm

2 stops26h 30m

San Juan Luis Munoz Marin Intl

Sat 5/24

2:50 pm-5:31 pm

1 stop29h 41m

$464

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 6/23

6:55 pm-10:40 am

2 stops12h 45m

San Juan Luis Munoz Marin Intl

Tue 7/22

7:30 am-7:00 pm

2 stops14h 30m

$575

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 4/21

2:32 pm-11:39 pm

2 stops30h 07m

$162

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 5/9

6:07 pm-10:59 am

2 stops13h 52m

$185

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 6/24

11:13 pm-1:25 pm

1 stop11h 12m

$222

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 5/26

9:11 am-12:54 am

3 stops36h 43m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 12 results
1
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to San Juan. Price data was last updated on March 28, 2025.

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 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $254). Flying from Portland to San Juan in December is currently the most expensive (average of $336). 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.

What is the cheapest time of day to fly from PDX to SJU?

Find hourly flight availability from Portland to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

When flying from Portland to San Juan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 30% versus a flight in the morning.

What is the cheapest day to fly from Portland to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Portland to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to San Juan flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated March 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Portland to San Juan have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Portland to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 8 different airlines.

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

    According to our current data, Spirit Airlines ($323), Delta ($369), and United Airlines ($393) offers the cheapest pricing from Portland to San Juan. Spirit Airlines is currently priced 41% 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 Spirit Airlines ($144), American Airlines ($185), and Delta ($222).

  • Where are the most common layover locations when flying from Portland to San Juan?

    Of the flights from Portland to San Juan that have layovers, most of them stop in Miami.

  • What are some popular things to do or see while on a layover in Miami?

    Wynwood Art District, Bayside Marketplace, and Bayfront Park are currently the most popular points of interest in Miami at the moment. Wynwood Art District, Bayside Marketplace and Bayfront Park are located about 5.5 mi, 6.4 mi, and 6.4 mi, respectively from Miami if you are interested in checking them out. Travelers in need of a car in Miami can rent one for about $24 per day.

  • Where are the least popular layover locations for Portland to San Juan flights?

    Flights departing from Portland and landing in San Juan layover in Atlanta least frequently.

  • 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 $254). Flying from Portland to San Juan in December is currently the most expensive (average of $336). 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

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Top 8 airlines flying from Portland to San Juan

Discover the top 8 airlines that operate flights from Portland to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$145Average$306FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$245Average$362FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$288Average$427FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$298Average$564FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$327Average$577FlexibilityNo cancel feeOn-time71%
DeltaCheapest$355Average$611FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$450Average$674FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$475Average$717FlexibilityNo cancel feeOn-time83%
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