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Cheap flights from Portland, Maine to San Juan from $232

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to San Juan departing on 7/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:35 pm - 11:56 pm
PWM
-
SJU
9h 21m
1 stop
Delta Logo
1:06 pm - 11:49 pm
SJU
-
PWM
10h 43m
1 stop
$312Delta
Tue, Oct 20 - Mon, Oct 26
American Airlines Logo
5:42 pm - 1:54 pm
PWM
-
SJU
20h 12m
2 stops
American Airlines Logo
6:27 am - 11:59 pm
SJU
-
PWM
17h 32m
2 stops
$317American Airlines
Wed, Sep 16 - Wed, Sep 23
American Airlines Logo
1:05 pm - 11:50 pm
PWM
-
SJU
10h 45m
2 stops
American Airlines Logo
5:25 am - 7:16 pm
SJU
-
PWM
13h 51m
1 stop
$322American Airlines
Tue, Oct 20 - Mon, Oct 26
American Airlines Logo
5:42 pm - 1:54 pm
PWM
-
SJU
20h 12m
2 stops
American Airlines Logo
6:27 am - 11:59 pm
SJU
-
PWM
17h 32m
2 stops
$327American Airlines
Wed, Sep 16 - Wed, Sep 23
American Airlines Logo
5:06 pm - 11:00 am
PWM
-
SJU
17h 54m
2 stops
American Airlines Logo
6:27 am - 10:45 pm
SJU
-
PWM
16h 18m
2 stops
$337American Airlines
Sat, Sep 19 - Sat, Sep 26
American Airlines Logo
7:00 am - 2:50 pm
PWM
-
SJU
7h 50m
1 stop
American Airlines Logo
6:27 am - 10:45 pm
SJU
-
PWM
16h 18m
2 stops
$347American Airlines
Sat, Sep 19 - Sat, Sep 26
Delta Logo
6:05 am - 1:16 pm
PWM
-
SJU
7h 11m
1 stop
Delta Logo
7:00 am - 1:54 pm
SJU
-
PWM
6h 54m
1 stop
$369Delta
Mon, Sep 21 - Fri, Sep 25
Delta Logo
10:00 am - 5:20 pm
PWM
-
SJU
6h 20m
1 stop
Delta Logo
7:15 am - 1:53 pm
SJU
-
PWM
7h 38m
1 stop
$386Delta
Fri, Nov 13 - Sun, Nov 22
United Airlines Logo
6:00 am - 2:40 pm
PWM
-
SJU
7h 40m
1 stop
United Airlines Logo
1:00 pm - 11:59 pm
SJU
-
PWM
11h 59m
2 stops
$388United Airlines
Mon, Nov 23 - Thu, Nov 26
Delta Logo
2:35 pm - 11:56 pm
PWM
-
SJU
9h 21m
1 stop
Delta Logo
1:06 pm - 11:49 pm
SJU
-
PWM
10h 43m
1 stop
$390Delta
Thu, Oct 22 - Mon, Oct 26

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American Airlines flights from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Portland, Maine to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Sep 16
PWM5:42 pmPortland
20h 12m
2 stops
SJU1:54 pmSan Juan Luis Munoz Marin Intl
Sep 23
SJU6:27 amSan Juan Luis Munoz Marin Intl
17h 32m
2 stops
PWM11:59 pmPortland
$317
American Airlines
Oct 20
PWM1:05 pmPortland
10h 45m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 26
SJU5:25 amSan Juan Luis Munoz Marin Intl
13h 51m
1 stop
PWM7:16 pmPortland
$322
American Airlines
Sep 16
PWM5:42 pmPortland
20h 12m
2 stops
SJU1:54 pmSan Juan Luis Munoz Marin Intl
Sep 23
SJU6:27 amSan Juan Luis Munoz Marin Intl
17h 32m
2 stops
PWM11:59 pmPortland
$327

United Airlines flights from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Portland, Maine to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Nov 23
PWM6:00 amPortland
7h 40m
1 stop
SJU2:40 pmSan Juan Luis Munoz Marin Intl
Nov 26
SJU1:00 pmSan Juan Luis Munoz Marin Intl
11h 59m
2 stops
PWM11:59 pmPortland
$388
United Airlines
Sep 19
PWM6:00 amPortland
7h 45m
1 stop
SJU1:45 pmSan Juan Luis Munoz Marin Intl
Sep 22
SJU1:00 amSan Juan Luis Munoz Marin Intl
13h 31m
2 stops
PWM2:31 pmPortland
$402
United Airlines
Oct 20
PWM7:58 amPortland
15h 52m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 26
SJU7:30 amSan Juan Luis Munoz Marin Intl
10h 43m
2 stops
PWM6:13 pmPortland
$412

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated June 17, 2026.
Use the filters below to find and compare flights from Portland, Maine to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 10/20

2:35 pm-11:56 pm

1 stop9h 21m

San Juan Luis Munoz Marin Intl

Mon 10/26

1:06 pm-11:49 pm

1 stop10h 43m

$312

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 9/16

5:42 pm-1:54 pm

2 stops20h 12m

San Juan Luis Munoz Marin Intl

Wed 9/23

6:27 am-11:59 pm

2 stops17h 32m

$317

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 10/20

1:05 pm-11:50 pm

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Mon 10/26

5:25 am-7:16 pm

1 stop13h 51m

$322

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 9/16

5:42 pm-1:54 pm

2 stops20h 12m

San Juan Luis Munoz Marin Intl

Wed 9/23

6:27 am-11:59 pm

2 stops17h 32m

$327

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 9/19

5:06 pm-11:00 am

2 stops17h 54m

San Juan Luis Munoz Marin Intl

Sat 9/26

6:27 am-10:45 pm

2 stops16h 18m

$337

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 9/19

7:00 am-2:50 pm

1 stop7h 50m

San Juan Luis Munoz Marin Intl

Sat 9/26

6:27 am-10:45 pm

2 stops16h 18m

$347

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Mon 9/21

6:05 am-1:16 pm

1 stop7h 11m

San Juan Luis Munoz Marin Intl

Fri 9/25

7:00 am-1:54 pm

1 stop6h 54m

$369
Quickest round-trip

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Fri 11/13

10:00 am-5:20 pm

1 stop6h 20m

San Juan Luis Munoz Marin Intl

Sun 11/22

7:15 am-1:53 pm

1 stop7h 38m

$386

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Mon 11/23

6:00 am-2:40 pm

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Thu 11/26

1:00 pm-11:59 pm

2 stops11h 59m

$388

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Thu 10/22

2:35 pm-11:56 pm

1 stop9h 21m

San Juan Luis Munoz Marin Intl

Mon 10/26

1:06 pm-11:49 pm

1 stop10h 43m

$390

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland, Maine and San Juan Luis Munoz Marin Intl Airport?

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $308.

How far in advance should I book a flight from Portland, Maine to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $462 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Portland, Maine for as low as $275 on momondo.

Can stopping save me money on Portland, Maine to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 54% on your flight if you consider stops on a Portland, Maine to San Juan Luis Munoz Marin Intl Airport flight.

How have Portland, Maine to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

When to book flights from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to San Juan Luis Munoz Marin Intl Airport (PWM to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

6h 20m

Direct flights

None
The fastest flight from Portland, Maine to San Juan Luis Munoz Marin Intl Airport takes 6h 20m
There are no direct flights from Portland, Maine to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Portland, Maine to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

Frequently asked questions about flying from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

  • How far is Portland to San Juan Luis Munoz Marin Intl by plane?

    The straight-line distance from Portland to San Juan Luis Munoz Marin Intl is 1759.0 mi. Flights usually cover this in 6h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Portland Airport to San Juan Luis Munoz Marin Intl Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Portland Airport to San Juan Luis Munoz Marin Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The travel and health documents you'll need for your trip to San Juan Luis Munoz Marin Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland, Maine to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Portland, Maine to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Portland, Maine to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $174Free CancellationRating
7.1
2,982 reviews
Search JetBlue flights
DeltaPriceFrom $176Free CancellationRating
7.8
8,406 reviews
Search Delta flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
9,848 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
SouthwestPriceFrom $300Free CancellationRating
7.9
4,235 reviews
Search Southwest flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Humacao
Rio Grande
Caguas
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Portland to San Juan?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to San Juan. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to San Juan with flexible booking policies on momondo?

Yes. All flights to San Juan from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to San Juan?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from Portland.

I’m not ready to book a flight from Portland to San Juan right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to San Juan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Juan and let you know when they change.

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