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San Juan

$94+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SJU
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Round-trip from

$178
(Mytrip)

One-way from

$115
(JetBlue Airways)

Popular in

April

Cheapest in

September

Average price

$594
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. 12% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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 3/810:08 amPWM - SJU
1 stop21h 27mFrontier
Thu 3/2712:55 pmSJU - PWM
1 stop30h 40mFrontier
Deal found 2/19$178
This JetBlue deal was found by Cheapflights users on 2/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/15:35 pmPWM - SJU
1 stop7h 57mJetBlue
Mon 4/712:57 pmSJU - PWM
1 stop10h 03mJetBlue
Deal found 2/20$229
This Delta deal was found by Cheapflights users on 2/19. 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.
Sat 4/262:59 pmPWM - SJU
1 stop8h 49mDelta
Tue 5/66:35 amSJU - PWM
1 stop7h 44mDelta
Deal found 2/19$295
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 5/212:50 pmPWM - SJU
1 stop11h 19mAmerican Airlines
Tue 5/65:45 amSJU - PWM
1 stop17h 01mAmerican Airlines
Deal found 2/20$311
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Fri 2/2812:06 pmPWM - SJU
2 stops34h 36mMultiple Airlines
Fri 3/711:27 amSJU - PWM
3 stops33h 00mMultiple Airlines
Deal found 2/20$322
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 4/16:15 amPWM - SJU
2 stops14h 23mUnited Airlines
Mon 4/74:55 pmSJU - PWM
1 stop6h 32mUnited Airlines
Deal found 2/20$350
This Southwest deal was found by Cheapflights users on 2/19. 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.
Mon 4/285:50 amPWM - SJU
2 stops11h 55mSouthwest
Sun 5/49:55 pmSJU - PWM
2 stops13h 10mSouthwest
Deal found 2/19$475

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 February 20, 2025.

Fly from

Portland

Fly to

San Juan

Route

Depart

Return

Price

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 3/8

10:08 am-8:35 am

1 stop21h 27m

San Juan Luis Munoz Marin Intl

Thu 3/27

12:55 pm-7:35 pm

1 stop30h 40m

$178

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 4/1

5:35 pm-2:46 am

1 stop9h 11m

San Juan Luis Munoz Marin Intl

Sat 4/5

7:00 am-4:40 pm

1 stop9h 40m

$248

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 4/1

5:30 am-2:12 pm

1 stop8h 42m

San Juan Luis Munoz Marin Intl

Sat 4/5

7:40 am-2:28 pm

1 stop6h 48m

$295

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Fri 5/2

12:50 pm-12:09 am

1 stop11h 19m

San Juan Luis Munoz Marin Intl

Tue 5/6

5:45 am-3:31 pm

1 stop9h 46m

$311

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 4/9

8:07 pm-6:44 pm

2 stops22h 37m

San Juan Luis Munoz Marin Intl

Mon 4/14

2:40 pm-5:27 pm

2 stops26h 47m

$333

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 3/8

3:55 pm-12:36 am

1 stop7h 41m

San Juan Luis Munoz Marin Intl

Wed 3/26

1:05 am-2:52 pm

2 stops13h 47m

$390

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sun 3/2

5:10 pm-10:50 am

2 stops16h 40m

San Juan Luis Munoz Marin Intl

Wed 3/5

9:05 am-10:15 pm

2 stops14h 10m

$436

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 3/5

6:48 pm-9:10 pm

1 stop25h 22m

$94

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 4/8

5:35 pm-2:46 am

1 stop9h 11m

$115

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 4/8

12:15 pm-12:09 am

2 stops11h 54m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 13 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 February 14, 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 $363). 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 February 20, 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and JetBlue 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
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 $178 on this airline. Additional options worth looking into are JetBlue and Delta, starting at $248 and $295 round-trip. Frontier is currently priced 62% 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 $115 on JetBlue. Other airlines that offer cheap prices include American Airlines from $156 and Delta from $253 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 $363). 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 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$278FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$214Average$368FlexibilityNo cancel feeOn-time62%
DeltaCheapest$274Average$419FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$305Average$613FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$320Average$602FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$401Average$662FlexibilityNo cancel feeOn-time63%
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