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Cheap flights from Portland, Maine to San Juan from $151

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 5/5. 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

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
1:35 pm - 10:00 pm
PWM
-
SJU
8h 25m
1 stop
Delta Logo
7:00 am - 1:54 pm
SJU
-
PWM
6h 54m
1 stop
$276Delta
Wed, Sep 16 - Wed, Sep 23
Delta Logo
2:35 pm - 11:44 pm
PWM
-
SJU
9h 09m
1 stop
Delta Logo
7:00 am - 1:54 pm
SJU
-
PWM
6h 54m
1 stop
$302Delta
Sat, Sep 19 - Sat, Sep 26
United Airlines Logo
5:15 am - 12:54 pm
PWM
-
SJU
7h 39m
1 stop
United Airlines Logo
1:00 am - 10:02 am
SJU
-
PWM
9h 02m
2 stops
$324United Airlines
Wed, Sep 16 - Tue, Sep 22
American Airlines Logo
8:05 am - 11:01 pm
PWM
-
SJU
14h 56m
1 stop
American Airlines Logo
7:00 am - 10:47 pm
SJU
-
PWM
15h 47m
1 stop
$347American Airlines
Wed, May 27 - Wed, Jun 3
American Airlines Logo
7:37 am - 6:24 pm
PWM
-
SJU
10h 47m
2 stops
American Airlines Logo
7:05 am - 10:00 pm
SJU
-
PWM
14h 55m
1 stop
$355American Airlines
Thu, Sep 3 - Tue, Sep 8
Delta Logo
1:35 pm - 10:23 pm
PWM
-
SJU
8h 48m
1 stop
Delta Logo
7:00 am - 1:54 pm
SJU
-
PWM
6h 54m
1 stop
$357Delta
Thu, Sep 3 - Wed, Sep 9
JetBlue Logo
2:36 pm - 10:53 pm
PWM
-
SJU
8h 17m
1 stop
JetBlue Logo
3:30 am - 1:35 pm
SJU
-
PWM
10h 05m
1 stop
$380JetBlue
Wed, May 27 - Tue, Jun 2
American Airlines Logo
7:58 am - 11:01 pm
PWM
-
SJU
15h 03m
1 stop
American Airlines Logo
6:20 am - 9:46 pm
SJU
-
PWM
15h 26m
1 stop
$382American Airlines
Fri, Jun 12 - Mon, Jun 15
United Airlines Logo
2:20 pm - 9:24 pm
PWM
-
SJU
7h 04m
1 stop
United Airlines Logo
1:00 am - 9:11 am
SJU
-
PWM
8h 11m
1 stop
$385United Airlines
Thu, May 28 - Mon, Jun 1
American Airlines Logo
8:05 am - 11:01 pm
PWM
-
SJU
14h 56m
1 stop
American Airlines Logo
10:29 am - 11:51 pm
SJU
-
PWM
13h 22m
2 stops
$387American Airlines
Wed, May 27 - Wed, Jun 3

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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
Sep 16
PWM1:35 pmPortland
8h 25m
1 stop
SJU10:00 pmSan Juan Luis Munoz Marin Intl
Sep 23
SJU7:00 amSan Juan Luis Munoz Marin Intl
6h 54m
1 stop
PWM1:54 pmPortland
$276
Delta
Sep 19
PWM2:35 pmPortland
9h 09m
1 stop
SJU11:44 pmSan Juan Luis Munoz Marin Intl
Sep 26
SJU7:00 amSan Juan Luis Munoz Marin Intl
6h 54m
1 stop
PWM1:54 pmPortland
$302
Delta
Sep 3
PWM1:35 pmPortland
8h 48m
1 stop
SJU10:23 pmSan Juan Luis Munoz Marin Intl
Sep 9
SJU7:00 amSan Juan Luis Munoz Marin Intl
6h 54m
1 stop
PWM1:54 pmPortland
$357

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
May 27
PWM2:36 pmPortland
8h 17m
1 stop
SJU10:53 pmSan Juan Luis Munoz Marin Intl
Jun 2
SJU3:30 amSan Juan Luis Munoz Marin Intl
10h 05m
1 stop
PWM1:35 pmPortland
$380
JetBlue
May 14
PWM7:20 amPortland
18h 47m
1 stop
SJU2:07 amSan Juan Luis Munoz Marin Intl
May 21
SJU8:06 pmSan Juan Luis Munoz Marin Intl
27h 52m
1 stop
PWM11:58 pmPortland
$573
JetBlue
May 14
PWM7:20 amPortland
6h 19m
1 stop
SJU1:39 pmSan Juan Luis Munoz Marin Intl
May 19
SJU2:35 pmSan Juan Luis Munoz Marin Intl
8h 28m
1 stop
PWM11:03 pmPortland
$614

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 April 22, 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

Wed 9/16

1:35 pm-10:00 pm

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Wed 9/23

7:00 am-1:54 pm

1 stop6h 54m

$276

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Sat 9/19

2:35 pm-11:44 pm

1 stop9h 09m

San Juan Luis Munoz Marin Intl

Sat 9/26

7:00 am-1:54 pm

1 stop6h 54m

$302

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 9/16

5:15 am-12:54 pm

1 stop7h 39m

San Juan Luis Munoz Marin Intl

Tue 9/22

1:00 am-10:02 am

2 stops9h 02m

$324

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 5/27

8:05 am-11:01 pm

1 stop14h 56m

San Juan Luis Munoz Marin Intl

Wed 6/3

7:00 am-10:47 pm

1 stop15h 47m

$347

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Thu 9/3

7:37 am-6:24 pm

2 stops10h 47m

San Juan Luis Munoz Marin Intl

Tue 9/8

7:05 am-10:00 pm

1 stop14h 55m

$355

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Thu 9/3

1:35 pm-10:23 pm

1 stop8h 48m

San Juan Luis Munoz Marin Intl

Wed 9/9

7:00 am-1:54 pm

1 stop6h 54m

$357

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 5/27

2:36 pm-10:53 pm

1 stop8h 17m

San Juan Luis Munoz Marin Intl

Tue 6/2

3:30 am-1:35 pm

1 stop10h 05m

$380

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Fri 6/12

7:58 am-11:01 pm

1 stop15h 03m

San Juan Luis Munoz Marin Intl

Mon 6/15

6:20 am-9:46 pm

1 stop15h 26m

$382
Quickest round-trip

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Thu 5/28

2:20 pm-9:24 pm

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Mon 6/1

1:00 am-9:11 am

1 stop8h 11m

$385

PortlandSan Juan

PWM - SJU

PWMSJU

Portland

Wed 5/27

8:05 am-11:01 pm

1 stop14h 56m

San Juan Luis Munoz Marin Intl

Wed 6/3

10:29 am-11:51 pm

2 stops13h 22m

$387

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 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 September is also cheap. Prices for this month can be found on momondo for an average of $285.

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 $446 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 24% 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 50m

Direct flights

None
The fastest flight from Portland, Maine to San Juan Luis Munoz Marin Intl Airport takes 6h 50m
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 50m, 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
2,948 reviews
Search JetBlue flights
DeltaPriceFrom $176Free CancellationRating
7.9
8,431 reviews
Search Delta flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
9,625 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,647 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,330 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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