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Cheap flights from Portland 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 to San Juan departing on 9/13. 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 to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:00 pm - 11:45 am
PDX
-
SJU
12h 45m
2 stops
Southwest Logo
5:45 am - 3:00 pm
SJU
-
PDX
13h 15m
2 stops
$466Southwest
Mon, Nov 9 - Tue, Nov 17
American Airlines Logo
11:34 pm - 11:15 pm
PDX
-
SJU
20h 41m
1 stop
American Airlines Logo
12:55 am - 11:34 am
SJU
-
PDX
13h 39m
1 stop
$471American Airlines
Wed, Aug 12 - Thu, Aug 20
Delta Logo
9:45 pm - 2:20 pm
PDX
-
SJU
12h 35m
1 stop
Delta Logo
7:15 am - 6:17 pm
SJU
-
PDX
15h 02m
2 stops
$476Delta
Mon, Nov 9 - Tue, Nov 17
American Airlines Logo
11:34 pm - 11:15 pm
PDX
-
SJU
20h 41m
1 stop
American Airlines Logo
6:00 am - 4:51 pm
SJU
-
PDX
13h 51m
2 stops
$481American Airlines
Wed, Aug 12 - Fri, Aug 21
American Airlines Logo
10:59 pm - 2:50 pm
PDX
-
SJU
12h 51m
1 stop
American Airlines Logo
2:22 pm - 11:28 pm
SJU
-
PDX
12h 06m
1 stop
$491American Airlines
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
11:06 pm - 2:50 pm
PDX
-
SJU
12h 44m
1 stop
American Airlines Logo
2:22 pm - 11:28 pm
SJU
-
PDX
12h 06m
1 stop
$503American Airlines
Sun, Sep 20 - Tue, Sep 29
American Airlines Logo
11:34 pm - 10:54 pm
PDX
-
SJU
20h 20m
1 stop
American Airlines Logo
12:55 am - 11:34 am
SJU
-
PDX
13h 39m
1 stop
$508American Airlines
Fri, Aug 21 - Sun, Aug 23
American Airlines Logo
12:45 am - 6:24 pm
PDX
-
SJU
14h 39m
2 stops
American Airlines Logo
7:00 am - 11:30 pm
SJU
-
PDX
19h 30m
1 stop
$511American Airlines
Mon, Jul 27 - Mon, Aug 3
American Airlines Logo
5:59 pm - 10:35 am
PDX
-
SJU
12h 36m
2 stops
American Airlines Logo
11:25 am - 10:56 pm
SJU
-
PDX
15h 31m
2 stops
$513American Airlines
Wed, Dec 2 - Tue, Dec 15
American Airlines Logo
5:15 am - 9:55 pm
PDX
-
SJU
13h 40m
2 stops
American Airlines Logo
6:00 am - 5:30 pm
SJU
-
PDX
14h 30m
2 stops
$518American Airlines
Wed, Aug 12 - Fri, Aug 21

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American Airlines flights from Portland to San Juan

Our best American Airlines deals on Portland to San Juan flight tickets
American Airlines
Aug 12
PDX11:34 pmPortland
20h 41m
1 stop
SJU11:15 pmSan Juan Luis Munoz Marin Intl
Aug 20
SJU12:55 amSan Juan Luis Munoz Marin Intl
13h 39m
1 stop
PDX11:34 amPortland
$471
American Airlines
Aug 16
PDX10:58 pmPortland
11h 26m
1 stop
SJU1:24 pmSan Juan Luis Munoz Marin Intl
Aug 22
SJU7:05 amSan Juan Luis Munoz Marin Intl
13h 55m
2 stops
PDX6:00 pmPortland
$476
American Airlines
Aug 12
PDX11:34 pmPortland
20h 41m
1 stop
SJU11:15 pmSan Juan Luis Munoz Marin Intl
Aug 21
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 51m
2 stops
PDX4:51 pmPortland
$481

United Airlines flights from Portland to San Juan

Our best United Airlines deals on Portland to San Juan flight tickets
United Airlines
Aug 21
PDX7:07 pmPortland
14h 27m
2 stops
SJU12:34 pmSan Juan Luis Munoz Marin Intl
Aug 23
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
PDX9:50 amPortland
$466
United Airlines
Aug 8
PDX12:50 pmPortland
13h 39m
2 stops
SJU5:29 amSan Juan Luis Munoz Marin Intl
Aug 16
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
PDX9:50 amPortland
$545
United Airlines
Jul 17
PDX10:27 amPortland
10h 23m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Jul 20
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 25m
1 stop
PDX9:25 amPortland
$556

momondo Fare Finder

 
Customize your flight search to find flights from Portland to San Juan 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 21, 2026.
Use the filters below to find and compare flights from Portland to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 11/9

7:00 pm-11:45 am

2 stops12h 45m

San Juan Luis Munoz Marin Intl

Tue 11/17

5:45 am-3:00 pm

2 stops13h 15m

$466

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 8/12

11:34 pm-11:15 pm

1 stop20h 41m

San Juan Luis Munoz Marin Intl

Thu 8/20

12:55 am-11:34 am

1 stop13h 39m

$471

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 11/9

9:45 pm-2:20 pm

1 stop12h 35m

San Juan Luis Munoz Marin Intl

Tue 11/17

7:15 am-6:17 pm

2 stops15h 02m

$476

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 8/12

11:34 pm-11:15 pm

1 stop20h 41m

San Juan Luis Munoz Marin Intl

Fri 8/21

6:00 am-4:51 pm

2 stops13h 51m

$481

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 9/8

10:59 pm-2:50 pm

1 stop12h 51m

San Juan Luis Munoz Marin Intl

Sat 9/12

2:22 pm-11:28 pm

1 stop12h 06m

$491
Quickest round-trip

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sun 9/20

11:06 pm-2:50 pm

1 stop12h 44m

San Juan Luis Munoz Marin Intl

Tue 9/29

2:22 pm-11:28 pm

1 stop12h 06m

$503

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 8/21

11:34 pm-10:54 pm

1 stop20h 20m

San Juan Luis Munoz Marin Intl

Sun 8/23

12:55 am-11:34 am

1 stop13h 39m

$508

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 7/27

12:45 am-6:24 pm

2 stops14h 39m

San Juan Luis Munoz Marin Intl

Mon 8/3

7:00 am-11:30 pm

1 stop19h 30m

$511

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 12/2

5:59 pm-10:35 am

2 stops12h 36m

San Juan Luis Munoz Marin Intl

Tue 12/15

11:25 am-10:56 pm

2 stops15h 31m

$513

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 8/12

5:15 am-9:55 pm

2 stops13h 40m

San Juan Luis Munoz Marin Intl

Fri 8/21

6:00 am-5:30 pm

2 stops14h 30m

$518

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 to San Juan

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 and San Juan?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in September, then April is your next best option. Flight prices from Portland to San Juan during April average around $210.

How far in advance should I book a flight from Portland to San Juan?

You are more likely to see cheaper flights to San Juan from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $587 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Portland for as low as $527 on momondo.

Cheap Portland to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to San Juan

Fastest flight time

9h 25m

Direct flights

None
The fastest flight from Portland to San Juan takes 9h 25m
There are no direct flights from Portland to San Juan. There are no popular flight routes from Portland to San Juan.
Search flight deals

Frequently asked questions about flying from Portland to San Juan

  • How far is Portland to San Juan by plane?

    Portland and San Juan are 3707.1 mi apart from one another. A reasonable flight in good conditions will take 9h 25m.

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

    Prices for flights from Portland Airport to San Juan are refreshed on a daily basis.

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

  • How old do you have to be to fly from Portland Airport to San Juan?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to San Juan

Compare and see reviews for airlines that fly from Portland to San Juan with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $235Free CancellationRating
7.8
8,423 reviews
Search Delta flights
American AirlinesPriceFrom $399Free CancellationRating
7.1
11,722 reviews
Search American Airlines flights
SouthwestPriceFrom $408Free CancellationRating
7.9
4,243 reviews
Search Southwest flights
United AirlinesPriceFrom $418Free CancellationRating
7.4
9,868 reviews
Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to San Juan for you.

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

Yes. momondo enables you to select and highlight flights to San Juan from Portland with this policy.

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

momondo provides multiple filters to help you find the best flight to San Juan from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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 simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from Portland and alert you when they change.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport