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San Juan

$91+ Cheap flights from Portland, ME (PWM) 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SJU
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Portland to San Juan are usually found in September or October, booked 39 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Portland to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 January 21, 2025.

Round-trip from

$158
(Mytrip)

One-way from

$91
(Mytrip)

Popular in

April

Cheapest in

September

Average price

$393
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. 14% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/20. 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 3/198:35 pmPWM - SJU
1 stop27h 38mFrontier
Wed 3/265:35 amSJU - PWM
1 stop14h 00mFrontier
Deal found 1/20$158
This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 2/253:04 pmPWM - SJU
1 stop7h 55mDelta
Tue 3/46:10 pmSJU - PWM
1 stop6h 47mDelta
Deal found 1/21$303
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 2/2512:49 pmPWM - SJU
2 stops8h 46mAmerican Airlines
Wed 3/56:00 amSJU - PWM
1 stop7h 24mAmerican Airlines
Deal found 1/20$336
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 3/89:30 amPWM - SJU
1 stop10h 25mUnited Airlines
Tue 3/111:05 amSJU - PWM
1 stop9h 29mUnited Airlines
Deal found 1/20$380
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Fri 1/316:18 pmPWM - SJU
3 stops29h 30mMultiple Airlines
Tue 2/48:45 amSJU - PWM
3 stops27h 35mMultiple Airlines
Deal found 1/21$396
This Southwest deal was found by Cheapflights users on 1/21. 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 3/155:45 pmPWM - SJU
1 stop8h 05mSouthwest
Wed 3/197:40 amSJU - PWM
2 stops15h 20mSouthwest
Deal found 1/21$453

Find flights from Portland to San Juan within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 3/19

8:35 pm-12:13 am

1 stop27h 38m

San Juan Luis Munoz Marin Intl

Wed 3/26

5:35 am-7:35 pm

1 stop14h 00m

$158

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 2/25

3:04 pm-11:59 pm

1 stop7h 55m

San Juan Luis Munoz Marin Intl

Tue 3/4

6:10 pm-11:57 pm

1 stop6h 47m

$303

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 2/25

12:49 pm-11:55 pm

2 stops10h 06m

San Juan Luis Munoz Marin Intl

Wed 3/5

6:00 am-1:57 pm

2 stops8h 57m

$336

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 3/8

9:30 am-8:55 pm

1 stop10h 25m

San Juan Luis Munoz Marin Intl

Tue 3/11

1:05 am-10:34 am

1 stop9h 29m

$380

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Fri 1/31

6:18 pm-12:48 am

3 stops29h 30m

San Juan Luis Munoz Marin Intl

Tue 2/4

8:45 am-11:20 am

3 stops27h 35m

$396

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 3/15

5:45 pm-1:50 am

1 stop8h 05m

San Juan Luis Munoz Marin Intl

Wed 3/19

7:40 am-11:00 pm

2 stops15h 20m

$453

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Fri 2/7

9:02 pm-7:34 pm

1 stop21h 32m

$91

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 4/8

5:35 pm-2:46 am

1 stop9h 11m

$138

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 4/8

7:06 am-5:10 pm

2 stops10h 04m

$156

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 2/8

12:00 pm-9:21 am

2 stops20h 21m

$173

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 14 results
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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.

Travel insights for flights from Portland to San Juan

Get recent, data-driven insights about flights from Portland to San Juan including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Portland, Maine 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 January 17, 2025.

To ensure you get the cheapest price possible for a flight from Portland, Maine to San Juan, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to San Juan (average of $254). Flying from Portland, Maine to San Juan in March is currently the most expensive (average of $378). 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 PWM 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 January 21, 2025.

When flying from Portland, Maine to San Juan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 46% versus a flight in the morning.

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 January 21, 2025.
Peruse reviews from past customers who have flown with Southwest, American Airlines and Frontier from Portland to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,200 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Overall

8.1

Food

7.2

Comfort

8.1

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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?

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly out of when you book flights from Portland to San Juan. 6 airlines have flights from Portland to San Juan on a regular basis. Booking flights from Portland to San Juan should not be difficult; the airport handles an average of 0 outbound flights to San Juan per day.

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

    Our cheapest airline available from Portland, Maine to San Juan is Frontier. Our recent data shows that you can find tickets from as low as $158 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $303 and $336 round-trip. Frontier is currently priced 66% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $91 on Frontier. Other airlines that offer cheap prices include JetBlue from $138 and American Airlines from $156 one-way.

  • 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, Maine to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to San Juan (average of $254). Flying from Portland, Maine to San Juan in March is currently the most expensive (average of $378). 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.

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Top 6 airlines flying from Portland to San Juan

Discover the top 6 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$284FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$214Average$347FlexibilityNo cancel feeOn-time62%
DeltaCheapest$274Average$494FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$305Average$607FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$322Average$592FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$371Average$661FlexibilityNo cancel feeOn-time63%
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