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Cheap flights from Portland, Maine to San Juan from $111

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 5/9. 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
0 bags

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Find the cheapest flights from Portland, Maine to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:40 am - 11:50 pm
PWM
-
SJU
14h 10m
2 stops
United Airlines Logo
1:00 am - 10:18 am
SJU
-
PWM
9h 18m
2 stops
$222United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
3:39 pm - 11:50 pm
PWM
-
SJU
8h 11m
1 stop
United Airlines Logo
1:00 am - 8:49 am
SJU
-
PWM
7h 49m
1 stop
$247United Airlines
Sat, May 2 - Tue, May 5
Delta Logo
2:51 pm - 11:59 pm
PWM
-
SJU
9h 08m
1 stop
Delta Logo
7:05 am - 1:58 pm
SJU
-
PWM
6h 53m
1 stop
$276Delta
Sat, May 2 - Sat, May 9
United Airlines Logo
9:00 am - 8:34 pm
PWM
-
SJU
11h 34m
1 stop
United Airlines Logo
4:55 pm - 11:59 pm
SJU
-
PWM
7h 04m
1 stop
$285United Airlines
Sun, May 3 - Thu, May 7
United Airlines Logo
3:39 pm - 11:50 pm
PWM
-
SJU
8h 11m
1 stop
United Airlines Logo
1:00 am - 8:49 am
SJU
-
PWM
7h 49m
1 stop
$295United Airlines
Wed, May 6 - Sat, May 9
United Airlines Logo
9:00 am - 8:34 pm
PWM
-
SJU
11h 34m
1 stop
United Airlines Logo
1:00 am - 10:18 am
SJU
-
PWM
9h 18m
2 stops
$298United Airlines
Sun, May 3 - Wed, May 6
American Airlines Logo
10:50 am - 10:05 pm
PWM
-
SJU
11h 15m
1 stop
American Airlines Logo
3:44 pm - 10:54 am
SJU
-
PWM
19h 10m
2 stops
$304American Airlines
Sat, May 2 - Fri, May 8
United Airlines Logo
6:00 am - 1:45 pm
PWM
-
SJU
7h 45m
1 stop
United Airlines Logo
1:00 am - 10:18 am
SJU
-
PWM
9h 18m
2 stops
$307United Airlines
Tue, May 5 - Tue, May 5
Delta Logo
2:30 pm - 11:59 pm
PWM
-
SJU
9h 29m
1 stop
Delta Logo
5:10 pm - 11:59 pm
SJU
-
PWM
6h 49m
1 stop
$317Delta
Sun, Mar 22 - Thu, Mar 26
United Airlines Logo
5:30 am - 8:34 pm
PWM
-
SJU
15h 04m
2 stops
United Airlines Logo
1:00 am - 8:49 am
SJU
-
PWM
7h 49m
1 stop
$329United Airlines
Wed, May 6 - Sat, May 9

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

Our best Delta deals on Portland, Maine to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
May 2
PWM2:51 pmPortland
9h 08m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
May 9
SJU7:05 amSan Juan Luis Munoz Marin Intl
6h 53m
1 stop
PWM1:58 pmPortland
$276
Delta
Mar 22
PWM2:30 pmPortland
9h 29m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Mar 26
SJU5:10 pmSan Juan Luis Munoz Marin Intl
6h 49m
1 stop
PWM11:59 pmPortland
$317
Delta
May 14
PWM1:40 pmPortland
8h 37m
1 stop
SJU10:17 pmSan Juan Luis Munoz Marin Intl
May 16
SJU7:00 amSan Juan Luis Munoz Marin Intl
6h 58m
1 stop
PWM1:58 pmPortland
$344

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
May 2
PWM10:50 amPortland
11h 15m
1 stop
SJU10:05 pmSan Juan Luis Munoz Marin Intl
May 8
SJU3:44 pmSan Juan Luis Munoz Marin Intl
19h 10m
2 stops
PWM10:54 amPortland
$304
American Airlines
Apr 9
PWM6:00 amPortland
16h 05m
1 stop
SJU10:05 pmSan Juan Luis Munoz Marin Intl
Apr 17
SJU11:43 amSan Juan Luis Munoz Marin Intl
11h 49m
2 stops
PWM11:32 pmPortland
$380
American Airlines
Apr 11
PWM7:23 pmPortland
13h 50m
2 stops
SJU9:13 amSan Juan Luis Munoz Marin Intl
Apr 18
SJU3:19 pmSan Juan Luis Munoz Marin Intl
8h 13m
1 stop
PWM11:32 pmPortland
$386

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 February 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

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 5/2

9:40 am-11:50 pm

2 stops14h 10m

San Juan Luis Munoz Marin Intl

Tue 5/5

1:00 am-10:18 am

2 stops9h 18m

$222

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 5/2

3:39 pm-11:50 pm

1 stop8h 11m

San Juan Luis Munoz Marin Intl

Tue 5/5

1:00 am-8:49 am

1 stop7h 49m

$247

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 5/2

2:51 pm-11:59 pm

1 stop9h 08m

San Juan Luis Munoz Marin Intl

Sat 5/9

7:05 am-1:58 pm

1 stop6h 53m

$276

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sun 5/3

9:00 am-8:34 pm

1 stop11h 34m

San Juan Luis Munoz Marin Intl

Thu 5/7

4:55 pm-11:59 pm

1 stop7h 04m

$285

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 5/6

3:39 pm-11:50 pm

1 stop8h 11m

San Juan Luis Munoz Marin Intl

Sat 5/9

1:00 am-8:49 am

1 stop7h 49m

$295

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sun 5/3

9:00 am-8:34 pm

1 stop11h 34m

San Juan Luis Munoz Marin Intl

Wed 5/6

1:00 am-10:18 am

2 stops9h 18m

$298

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 5/2

10:50 am-10:05 pm

1 stop11h 15m

San Juan Luis Munoz Marin Intl

Fri 5/8

3:44 pm-10:54 am

2 stops19h 10m

$304

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 5/5

6:00 am-1:45 pm

1 stop7h 45m

San Juan Luis Munoz Marin Intl

Tue 5/5

1:00 am-10:18 am

2 stops9h 18m

$307

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sun 3/22

2:30 pm-11:59 pm

1 stop9h 29m

San Juan Luis Munoz Marin Intl

Thu 3/26

5:10 pm-11:59 pm

1 stop6h 49m

$317

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 5/6

5:30 am-8:34 pm

2 stops15h 04m

San Juan Luis Munoz Marin Intl

Sat 5/9

1:00 am-8:49 am

1 stop7h 49m

$329

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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 November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $343.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Portland, Maine is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $301. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Portland, Maine because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $340.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the afternoon when flights can be purchased for as low as $286. Flights at noon are often more expensive with an average ticket price of $333.

How far in advance should I book a flight 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 $447 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 $234 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 44% 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 55m

Direct flights

None
The fastest flight from Portland, Maine to San Juan Luis Munoz Marin Intl Airport takes 6h 55m
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

  • 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 55m, 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
7.2
2,898 reviews
Search JetBlue flights
DeltaPriceFrom $176Free CancellationRating
7.9
8,236 reviews
Search Delta flights
United AirlinesPriceFrom $241Free CancellationRating
7.4
9,342 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
11,339 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,300 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
Caguas
Rio Grande
Humacao
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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