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Cheap flights from Portland, Maine to San Juan from $233

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 4/16. 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
6:00 am - 9:00 pmPWM-SJU
14h 00m2 stops
United Airlines Logo
2:05 am - 9:01 amSJU-PWM
7h 56m1 stop
$235United Airlines
Find Deal
Tue, Jan 27 - Mon, Feb 2
United Airlines Logo
3:12 pm - 12:36 amPWM-SJU
8h 24m1 stop
United Airlines Logo
2:05 am - 9:01 amSJU-PWM
7h 56m1 stop
$255United Airlines
Find Deal
Wed, Feb 4 - Tue, Feb 10
American Airlines Logo
6:00 am - 4:20 pmPWM-SJU
9h 20m1 stop
American Airlines Logo
7:00 am - 3:31 pmSJU-PWM
9h 31m1 stop
$298American Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 3
JetBlue Logo
2:20 pm - 10:47 pmPWM-SJU
8h 27m1 stop
JetBlue Logo
3:30 am - 1:23 pmSJU-PWM
9h 53m1 stop
$308JetBlue
Find Deal
Wed, Apr 22 - Sat, May 2
Southwest Logo
3:30 pm - 11:10 pmPWM-SJU
6h 40m1 stop
Southwest Logo
6:10 am - 2:55 pmSJU-PWM
9h 45m1 stop
$355Southwest
Find Deal
Wed, Jan 28 - Tue, Feb 3
American Airlines Logo
12:46 pm - 11:56 pmPWM-SJU
10h 10m2 stops
American Airlines Logo
7:00 am - 9:37 pmSJU-PWM
15h 37m2 stops
$361American Airlines
Find Deal
Sat, Jan 24 - Sat, Feb 7
JetBlue Logo
2:20 pm - 10:47 pmPWM-SJU
8h 27m1 stop
JetBlue Logo
4:40 pm - 11:36 pmSJU-PWM
6h 56m1 stop
$390JetBlue
Find Deal
Sun, Apr 19 - Wed, Apr 22
Southwest Logo
1:00 pm - 12:40 amPWM-SJU
10h 40m2 stops
Southwest Logo
6:55 am - 3:55 pmSJU-PWM
10h 00m2 stops
$399Southwest
Find Deal
Fri, Feb 6 - Sat, Feb 14
Multiple Airlines Logo
3:15 pm - 4:28 pmPWM-SJU
24h 13m2 stops
Multiple Airlines Logo
9:45 pm - 10:36 amSJU-PWM
13h 51m1 stop
$597Multiple Airlines
Find Deal
Sun, Nov 23 - Fri, Nov 28
Multiple Airlines Logo
9:46 am - 2:50 amPWM-SJU
16h 04m1 stop
Multiple Airlines Logo
6:00 am - 10:36 amSJU-PWM
29h 36m2 stops
$617Multiple Airlines
Find Deal
Mon, Dec 22 - Tue, Dec 30

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

Our best JetBlue deals on Portland, Maine to San Juan Luis Munoz Marin Intl Airport flight tickets
JetBlue
Apr 22
PWM2:20 pmPortland
8h 27m
1 stop
SJU10:47 pmSan Juan Luis Munoz Marin Intl
May 2
SJU3:30 amSan Juan Luis Munoz Marin Intl
9h 53m
1 stop
PWM1:23 pmPortland
$308
Find similar
JetBlue
Apr 19
PWM2:20 pmPortland
8h 27m
1 stop
SJU10:47 pmSan Juan Luis Munoz Marin Intl
Apr 22
SJU4:40 pmSan Juan Luis Munoz Marin Intl
6h 56m
1 stop
PWM11:36 pmPortland
$390
Find similar
JetBlue
Apr 18
PWM2:20 pmPortland
8h 27m
1 stop
SJU10:47 pmSan Juan Luis Munoz Marin Intl
Apr 24
SJU5:40 amSan Juan Luis Munoz Marin Intl
7h 43m
1 stop
PWM1:23 pmPortland
$527
Find similar

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
Jan 27
PWM6:00 amPortland
14h 00m
2 stops
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 2
SJU2:05 amSan Juan Luis Munoz Marin Intl
7h 56m
1 stop
PWM9:01 amPortland
$235
Find similar
United Airlines
Feb 4
PWM3:12 pmPortland
8h 24m
1 stop
SJU12:36 amSan Juan Luis Munoz Marin Intl
Feb 10
SJU2:05 amSan Juan Luis Munoz Marin Intl
7h 56m
1 stop
PWM9:01 amPortland
$255
Find similar
United Airlines
Jan 28
PWM8:40 amPortland
11h 20m
2 stops
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 3
SJU7:45 amSan Juan Luis Munoz Marin Intl
16h 45m
2 stops
PWM11:30 pmPortland
$267
Find similar

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 October 30, 2025.
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

Tue 1/27

6:00 am-9:00 pm

2 stops14h 00m

San Juan Luis Munoz Marin Intl

Mon 2/2

2:05 am-9:01 am

1 stop7h 56m

$235

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 2/4

3:12 pm-12:36 am

1 stop8h 24m

San Juan Luis Munoz Marin Intl

Tue 2/10

2:05 am-9:01 am

1 stop7h 56m

$255

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Tue 1/27

6:00 am-4:20 pm

1 stop9h 20m

San Juan Luis Munoz Marin Intl

Tue 2/3

7:00 am-3:31 pm

1 stop9h 31m

$298

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 4/22

2:20 pm-10:47 pm

1 stop8h 27m

San Juan Luis Munoz Marin Intl

Sat 5/2

3:30 am-1:23 pm

1 stop9h 53m

$308

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 1/28

3:30 pm-11:10 pm

1 stop6h 40m

San Juan Luis Munoz Marin Intl

Tue 2/3

6:10 am-2:55 pm

1 stop9h 45m

$355

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 1/24

12:46 pm-11:56 pm

2 stops10h 10m

San Juan Luis Munoz Marin Intl

Sat 2/7

7:00 am-9:37 pm

2 stops15h 37m

$361

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sun 4/19

2:20 pm-10:47 pm

1 stop8h 27m

San Juan Luis Munoz Marin Intl

Wed 4/22

4:40 pm-11:36 pm

1 stop6h 56m

$390

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Fri 2/6

1:00 pm-12:40 am

2 stops10h 40m

San Juan Luis Munoz Marin Intl

Sat 2/14

6:55 am-3:55 pm

2 stops10h 00m

$399

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sun 11/23

3:15 pm-4:28 pm

2 stops24h 13m

San Juan Luis Munoz Marin Intl

Fri 11/28

9:45 pm-10:36 am

1 stop13h 51m

$597

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Mon 12/22

9:46 am-2:50 am

1 stop16h 04m

San Juan Luis Munoz Marin Intl

Tue 12/30

6:00 am-10:36 am

2 stops29h 36m

$617

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?

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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $364.

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 $334. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday 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 $579.

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 evening when flights can be purchased for as low as $302. Flights in the morning are often more expensive with an average ticket price of $557.

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 $479 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 $342 on momondo.

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

Direct flights

None
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.
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  • 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 40m, 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
FrontierPriceFrom $145Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $275Free CancellationRating
7.9
7,993 reviews
Search Delta flights
American AirlinesPriceFrom $301Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights
JetBluePriceFrom $361Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
SouthwestPriceFrom $371Free CancellationRating
8.0
4,242 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
Humacao
Rio Grande
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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