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Cheap flights from Portland, Maine to San Juan from $171

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 8/26. 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
6:00 am - 4:49 pm
PWM
-
SJU
10h 49m
1 stop
Delta Logo
1:16 pm - 11:56 pm
SJU
-
PWM
10h 40m
1 stop
$342Delta
Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
8:00 am - 12:56 am
PWM
-
SJU
16h 56m
2 stops
Multiple Airlines Logo
5:37 pm - 5:58 pm
SJU
-
PWM
24h 21m
1 stop
$355Multiple Airlines
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
6:03 am - 2:44 pm
PWM
-
SJU
8h 41m
1 stop
United Airlines Logo
4:55 pm - 11:59 pm
SJU
-
PWM
7h 04m
1 stop
$360United Airlines
Mon, Aug 24 - Fri, Aug 28
United Airlines Logo
6:00 am - 9:00 pm
PWM
-
SJU
14h 00m
2 stops
United Airlines Logo
8:05 am - 2:33 pm
SJU
-
PWM
7h 28m
1 stop
$361United Airlines
Sat, Nov 7 - Sat, Nov 14
Southwest Logo
11:35 am - 9:50 pm
PWM
-
SJU
10h 15m
2 stops
Southwest Logo
6:30 am - 4:55 pm
SJU
-
PWM
10h 25m
2 stops
$384Southwest
Tue, Oct 20 - Mon, Oct 26
Multiple Airlines Logo
5:09 pm - 11:57 pm
PWM
-
SJU
30h 48m
2 stops
Multiple Airlines Logo
9:49 pm - 9:08 am
SJU
-
PWM
11h 19m
1 stop
$386Multiple Airlines
Sat, Oct 10 - Fri, Oct 16
JetBlue Logo
6:00 am - 4:51 pm
PWM
-
SJU
10h 51m
2 stops
JetBlue Logo
9:30 am - 11:52 pm
SJU
-
PWM
14h 22m
2 stops
$387JetBlue
Wed, Sep 16 - Wed, Sep 23
JetBlue Logo
6:00 am - 4:51 pm
PWM
-
SJU
10h 51m
2 stops
JetBlue Logo
1:00 pm - 11:52 pm
SJU
-
PWM
10h 52m
1 stop
$394JetBlue
Mon, Sep 21 - Mon, Oct 19
Southwest Logo
5:35 am - 12:25 pm
PWM
-
SJU
6h 50m
1 stop
Southwest Logo
5:35 pm - 11:55 pm
SJU
-
PWM
6h 20m
1 stop
$395Southwest
Sat, Oct 10 - Fri, Oct 16
Delta Logo
4:15 pm - 11:56 pm
PWM
-
SJU
7h 41m
1 stop
Delta Logo
7:00 am - 1:53 pm
SJU
-
PWM
6h 53m
1 stop
$403Delta
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
Oct 20
PWM6:00 amPortland
16h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Oct 26
SJU12:13 pmSan Juan Luis Munoz Marin Intl
10h 23m
1 stop
PWM10:36 pmPortland
$414
American Airlines
Oct 20
PWM5:37 pmPortland
16h 09m
2 stops
SJU9:46 amSan Juan Luis Munoz Marin Intl
Oct 26
SJU7:30 amSan Juan Luis Munoz Marin Intl
16h 11m
1 stop
PWM11:41 pmPortland
$416
American Airlines
Aug 18
PWM7:28 amPortland
14h 56m
1 stop
SJU10:24 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU7:30 amSan Juan Luis Munoz Marin Intl
14h 30m
1 stop
PWM10:00 pmPortland
$418

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

Our best Southwest deals on Portland, Maine to San Juan Luis Munoz Marin Intl Airport flight tickets
Southwest
Oct 20
PWM11:35 amPortland
10h 15m
2 stops
SJU9:50 pmSan Juan Luis Munoz Marin Intl
Oct 26
SJU6:30 amSan Juan Luis Munoz Marin Intl
10h 25m
2 stops
PWM4:55 pmPortland
$384
Southwest
Nov 5
PWM1:40 pmPortland
10h 25m
1 stop
SJU1:05 amSan Juan Luis Munoz Marin Intl
Nov 14
SJU6:45 amSan Juan Luis Munoz Marin Intl
6h 40m
1 stop
PWM12:25 pmPortland
$426
Southwest
Jan 8
PWM3:25 pmPortland
6h 40m
1 stop
SJU11:05 pmSan Juan Luis Munoz Marin Intl
Jan 12
SJU6:15 amSan Juan Luis Munoz Marin Intl
9h 25m
1 stop
PWM2:40 pmPortland
$479

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 July 23, 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

Sat 9/19

6:00 am-4:49 pm

1 stop10h 49m

San Juan Luis Munoz Marin Intl

Sat 9/26

1:16 pm-11:56 pm

1 stop10h 40m

$342

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 8/18

8:00 am-12:56 am

2 stops16h 56m

San Juan Luis Munoz Marin Intl

Tue 8/25

5:37 pm-5:58 pm

1 stop24h 21m

$355

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Mon 8/24

6:03 am-2:44 pm

1 stop8h 41m

San Juan Luis Munoz Marin Intl

Fri 8/28

4:55 pm-11:59 pm

1 stop7h 04m

$360

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 11/7

6:00 am-9:00 pm

2 stops14h 00m

San Juan Luis Munoz Marin Intl

Sat 11/14

8:05 am-2:33 pm

1 stop7h 28m

$361

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 10/20

11:35 am-9:50 pm

2 stops10h 15m

San Juan Luis Munoz Marin Intl

Mon 10/26

6:30 am-4:55 pm

2 stops10h 25m

$384

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 10/10

5:09 pm-11:57 pm

2 stops30h 48m

San Juan Luis Munoz Marin Intl

Fri 10/16

9:49 pm-9:08 am

1 stop11h 19m

$386

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 9/16

6:00 am-4:51 pm

2 stops10h 51m

San Juan Luis Munoz Marin Intl

Wed 9/23

9:30 am-11:52 pm

2 stops14h 22m

$387

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Mon 9/21

6:00 am-4:51 pm

2 stops10h 51m

San Juan Luis Munoz Marin Intl

Mon 10/19

1:00 pm-11:52 pm

1 stop10h 52m

$394
Quickest round-trip

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 10/10

5:35 am-12:25 pm

1 stop6h 50m

San Juan Luis Munoz Marin Intl

Fri 10/16

5:35 pm-11:55 pm

1 stop6h 20m

$395

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Thu 10/22

4:15 pm-11:56 pm

1 stop7h 41m

San Juan Luis Munoz Marin Intl

Mon 10/26

7:00 am-1:53 pm

1 stop6h 53m

$403

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Prices are currently low for flights on this route.

Typical prices usually range from $532 to $678.
The lowest price recently found on this route was $342.

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 November is also cheap. Prices for this month can be found on momondo for an average of $322.

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 $501 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 $287 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 80% 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 11m

Direct flights

None
The fastest flight from Portland, Maine to San Juan Luis Munoz Marin Intl Airport takes 6h 11m
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 11m, 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
3,020 reviews
Search JetBlue flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
10,026 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,834 reviews
Search American Airlines flights
DeltaPriceFrom $275Free CancellationRating
7.8
8,479 reviews
Search Delta flights
SouthwestPriceFrom $300Free CancellationRating
8.0
4,238 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
Rio Grande
Humacao
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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