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Cheap flights from Portland to San Juan from $202

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 4/27. 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 to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:30 am - 10:40 pm
PDX
-
SJU
13h 10m
2 stops
Southwest Logo
5:05 am - 9:00 pm
SJU
-
PDX
18h 55m
2 stops
$444Southwest
Tue, Apr 28 - Tue, May 12
Southwest Logo
10:45 pm - 2:30 pm
PDX
-
SJU
12h 45m
1 stop
Southwest Logo
5:30 am - 3:00 pm
SJU
-
PDX
12h 30m
1 stop
$446Southwest
Thu, Aug 13 - Thu, Aug 20
Southwest Logo
9:45 am - 11:40 pm
PDX
-
SJU
10h 55m
2 stops
Southwest Logo
11:25 am - 10:00 pm
SJU
-
PDX
13h 35m
2 stops
$456Southwest
Wed, May 6 - Tue, May 12
United Airlines Logo
10:56 pm - 2:44 pm
PDX
-
SJU
12h 48m
1 stop
United Airlines Logo
3:56 pm - 11:59 pm
SJU
-
PDX
11h 03m
1 stop
$476United Airlines
Fri, Apr 17 - Fri, Apr 24
Southwest Logo
10:45 pm - 12:50 pm
PDX
-
SJU
11h 05m
1 stop
Southwest Logo
6:00 am - 4:35 pm
SJU
-
PDX
13h 35m
2 stops
$478Southwest
Mon, Aug 10 - Mon, Aug 17
Southwest Logo
11:55 pm - 1:20 pm
PDX
-
SJU
10h 25m
1 stop
Southwest Logo
6:50 am - 8:10 pm
SJU
-
PDX
16h 20m
2 stops
$480Southwest
Fri, May 8 - Fri, May 15
Multiple Airlines Logo
12:38 pm - 2:06 pm
PDX
-
SJU
22h 28m
3 stops
Multiple Airlines Logo
3:21 am - 8:35 pm
SJU
-
PDX
44h 14m
2 stops
$489Multiple Airlines
Tue, Apr 21 - Sun, May 3
American Airlines Logo
6:00 am - 11:02 pm
PDX
-
SJU
14h 02m
1 stop
American Airlines Logo
6:45 am - 11:54 pm
SJU
-
PDX
20h 09m
1 stop
$493American Airlines
Tue, Apr 21 - Mon, May 4
Multiple Airlines Logo
12:38 pm - 2:01 am
PDX
-
SJU
34h 23m
3 stops
Multiple Airlines Logo
6:30 am - 12:52 pm
SJU
-
PDX
57h 22m
3 stops
$497Multiple Airlines
Tue, Apr 21 - Mon, May 4
American Airlines Logo
11:47 pm - 2:52 pm
PDX
-
SJU
12h 05m
2 stops
American Airlines Logo
1:31 pm - 11:53 pm
SJU
-
PDX
13h 22m
1 stop
$502American Airlines
Tue, Apr 21 - Mon, May 4

American Airlines flights from Portland to San Juan

Our best American Airlines deals on Portland to San Juan flight tickets
American Airlines
Apr 21
PDX6:00 amPortland
14h 02m
1 stop
SJU11:02 pmSan Juan Luis Munoz Marin Intl
May 4
SJU6:45 amSan Juan Luis Munoz Marin Intl
20h 09m
1 stop
PDX11:54 pmPortland
$493
American Airlines
Apr 21
PDX11:47 pmPortland
12h 05m
2 stops
SJU2:52 pmSan Juan Luis Munoz Marin Intl
May 4
SJU1:31 pmSan Juan Luis Munoz Marin Intl
13h 22m
1 stop
PDX11:53 pmPortland
$502
American Airlines
Jul 28
PDX10:57 pmPortland
13h 50m
2 stops
SJU3:47 pmSan Juan Luis Munoz Marin Intl
Aug 3
SJU2:25 pmSan Juan Luis Munoz Marin Intl
12h 04m
1 stop
PDX11:29 pmPortland
$513

Southwest flights from Portland to San Juan

Our best Southwest deals on Portland to San Juan flight tickets
Southwest
Apr 28
PDX6:30 amPortland
13h 10m
2 stops
SJU10:40 pmSan Juan Luis Munoz Marin Intl
May 12
SJU5:05 amSan Juan Luis Munoz Marin Intl
18h 55m
2 stops
PDX9:00 pmPortland
$444
Southwest
Aug 13
PDX10:45 pmPortland
12h 45m
1 stop
SJU2:30 pmSan Juan Luis Munoz Marin Intl
Aug 20
SJU5:30 amSan Juan Luis Munoz Marin Intl
12h 30m
1 stop
PDX3:00 pmPortland
$446
Southwest
May 6
PDX9:45 amPortland
10h 55m
2 stops
SJU11:40 pmSan Juan Luis Munoz Marin Intl
May 12
SJU11:25 amSan Juan Luis Munoz Marin Intl
13h 35m
2 stops
PDX10:00 pmPortland
$456

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 March 22, 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

Tue 4/28

6:30 am-10:40 pm

2 stops13h 10m

San Juan Luis Munoz Marin Intl

Tue 5/12

5:05 am-9:00 pm

2 stops18h 55m

$444

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Thu 8/13

10:45 pm-2:30 pm

1 stop12h 45m

San Juan Luis Munoz Marin Intl

Thu 8/20

5:30 am-3:00 pm

1 stop12h 30m

$446

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 5/6

9:45 am-11:40 pm

2 stops10h 55m

San Juan Luis Munoz Marin Intl

Tue 5/12

11:25 am-10:00 pm

2 stops13h 35m

$456
Quickest round-trip

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 4/17

10:56 pm-2:44 pm

1 stop12h 48m

San Juan Luis Munoz Marin Intl

Fri 4/24

3:56 pm-11:59 pm

1 stop11h 03m

$476

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 8/10

10:45 pm-12:50 pm

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Mon 8/17

6:00 am-4:35 pm

2 stops13h 35m

$478

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 5/8

11:55 pm-1:20 pm

1 stop10h 25m

San Juan Luis Munoz Marin Intl

Fri 5/15

6:50 am-8:10 pm

2 stops16h 20m

$480

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 4/21

12:38 pm-2:06 pm

3 stops22h 28m

San Juan Luis Munoz Marin Intl

Sun 5/3

3:21 am-8:35 pm

2 stops44h 14m

$489

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 4/21

6:00 am-11:02 pm

1 stop14h 02m

San Juan Luis Munoz Marin Intl

Mon 5/4

6:45 am-11:54 pm

1 stop20h 09m

$493

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 4/21

12:38 pm-2:01 am

3 stops34h 23m

San Juan Luis Munoz Marin Intl

Mon 5/4

6:30 am-12:52 pm

3 stops57h 22m

$497

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 4/21

11:47 pm-2:52 pm

2 stops12h 05m

San Juan Luis Munoz Marin Intl

Mon 5/4

1:31 pm-11:53 pm

1 stop13h 22m

$502

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 cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in October, then May is your next best option. Flight prices from Portland to San Juan during May average around $498.

How far in advance should I book a flight 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 $576 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 $507 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

10h 01m

Direct flights

None
The fastest flight from Portland to San Juan takes 10h 01m
There are no direct flights from Portland to San Juan. There are no popular flight routes from Portland to San Juan.
Search flight deals

  • 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 10h 01m.

  • 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
JetBluePriceFrom $185Free CancellationRating
7.2
2,911 reviews
Search JetBlue flights
DeltaPriceFrom $235Free CancellationRating
7.9
8,315 reviews
Search Delta flights
Spirit AirlinesPriceFrom $241Free CancellationRating
6.3
8,533 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $399Free CancellationRating
7.4
9,459 reviews
Search United Airlines flights
American AirlinesPriceFrom $399Free CancellationRating
7.1
11,485 reviews
Search American Airlines flights
SouthwestPriceFrom $408Free CancellationRating
8.0
4,325 reviews
Search Southwest 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.

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Tue 4/21
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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