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Cheap flights from Portland to San Juan from $167

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 3/7. 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.
American Airlines Logo
11:48 am - 5:24 am
PDX
-
SJU
13h 36m
1 stop
American Airlines Logo
1:23 pm - 11:44 pm
SJU
-
PDX
13h 21m
1 stop
$436American Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
7:05 pm - 12:04 pm
PDX
-
SJU
13h 59m
2 stops
United Airlines Logo
3:56 pm - 11:50 pm
SJU
-
PDX
10h 54m
1 stop
$440United Airlines
Fri, May 1 - Thu, May 7
Southwest Logo
6:00 am - 7:30 pm
PDX
-
SJU
10h 30m
2 stops
Southwest Logo
2:00 pm - 12:10 am
SJU
-
PDX
13h 10m
2 stops
$446Southwest
Wed, Apr 1 - Thu, Apr 30
American Airlines Logo
5:38 pm - 9:00 am
PDX
-
SJU
12h 22m
2 stops
American Airlines Logo
11:59 pm - 4:59 pm
SJU
-
PDX
20h 00m
1 stop
$449American Airlines
Wed, Apr 1 - Wed, Apr 15
American Airlines Logo
7:13 am - 11:02 pm
PDX
-
SJU
12h 49m
2 stops
American Airlines Logo
11:59 pm - 4:59 pm
SJU
-
PDX
20h 00m
1 stop
$450American Airlines
Tue, Apr 21 - Mon, May 4
American Airlines Logo
7:00 am - 11:02 pm
PDX
-
SJU
13h 02m
1 stop
American Airlines Logo
11:59 pm - 11:01 am
SJU
-
PDX
14h 02m
1 stop
$451American Airlines
Tue, Apr 21 - Mon, May 4
Southwest Logo
6:30 am - 11:10 pm
PDX
-
SJU
12h 40m
2 stops
Southwest Logo
10:10 am - 10:10 pm
SJU
-
PDX
15h 00m
2 stops
$470Southwest
Wed, Mar 4 - Wed, Mar 18
Delta Logo
11:40 am - 11:15 pm
PDX
-
SJU
8h 35m
1 stop
Delta Logo
7:15 am - 10:21 pm
SJU
-
PDX
18h 06m
2 stops
$478Delta
Wed, Mar 11 - Sat, May 2
Southwest Logo
5:50 am - 12:40 am
PDX
-
SJU
14h 50m
2 stops
Southwest Logo
2:50 pm - 12:45 am
SJU
-
PDX
12h 55m
2 stops
$481Southwest
Mon, Mar 2 - Mon, Mar 9
Southwest Logo
5:30 am - 9:05 pm
PDX
-
SJU
12h 35m
2 stops
Southwest Logo
2:00 pm - 12:25 am
SJU
-
PDX
13h 25m
2 stops
$485Southwest
Wed, Apr 22 - Mon, Apr 27

American Airlines flights from Portland to San Juan

Our best American Airlines deals on Portland to San Juan flight tickets
American Airlines
Mar 4
PDX11:48 amPortland
13h 36m
1 stop
SJU5:24 amSan Juan Luis Munoz Marin Intl
Mar 11
SJU1:23 pmSan Juan Luis Munoz Marin Intl
13h 21m
1 stop
PDX11:44 pmPortland
$436
American Airlines
Apr 1
PDX5:38 pmPortland
12h 22m
2 stops
SJU9:00 amSan Juan Luis Munoz Marin Intl
Apr 15
SJU11:59 pmSan Juan Luis Munoz Marin Intl
20h 00m
1 stop
PDX4:59 pmPortland
$449
American Airlines
Apr 21
PDX11:23 pmPortland
18h 28m
1 stop
SJU8:51 pmSan Juan Luis Munoz Marin Intl
May 4
SJU11:59 pmSan Juan Luis Munoz Marin Intl
20h 00m
1 stop
PDX4:59 pmPortland
$450

Delta flights from Portland to San Juan

Our best Delta deals on Portland to San Juan flight tickets
Delta
Mar 11
PDX6:05 amPortland
14h 10m
2 stops
SJU11:15 pmSan Juan Luis Munoz Marin Intl
May 2
SJU7:15 amSan Juan Luis Munoz Marin Intl
18h 06m
2 stops
PDX10:21 pmPortland
$478
Delta
May 3
PDX11:15 pmPortland
10h 37m
1 stop
SJU12:52 pmSan Juan Luis Munoz Marin Intl
May 8
SJU1:55 pmSan Juan Luis Munoz Marin Intl
10h 45m
1 stop
PDX9:40 pmPortland
$493
Delta
Apr 16
PDX11:15 pmPortland
10h 37m
1 stop
SJU12:52 pmSan Juan Luis Munoz Marin Intl
Apr 22
SJU1:25 pmSan Juan Luis Munoz Marin Intl
11h 51m
1 stop
PDX10:16 pmPortland
$498

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 February 4, 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

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 3/4

11:48 am-5:24 am

1 stop13h 36m

San Juan Luis Munoz Marin Intl

Wed 3/11

1:23 pm-11:44 pm

1 stop13h 21m

$436

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 5/1

7:05 pm-12:04 pm

2 stops13h 59m

San Juan Luis Munoz Marin Intl

Thu 5/7

3:56 pm-11:50 pm

1 stop10h 54m

$440

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 4/1

6:00 am-7:30 pm

2 stops10h 30m

San Juan Luis Munoz Marin Intl

Thu 4/30

2:00 pm-12:10 am

2 stops13h 10m

$446

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 4/1

5:38 pm-9:00 am

2 stops12h 22m

San Juan Luis Munoz Marin Intl

Wed 4/15

11:59 pm-4:59 pm

1 stop20h 00m

$449

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 4/21

7:13 am-11:02 pm

2 stops12h 49m

San Juan Luis Munoz Marin Intl

Mon 5/4

11:59 pm-4:59 pm

1 stop20h 00m

$450

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 4/21

7:00 am-11:02 pm

1 stop13h 02m

San Juan Luis Munoz Marin Intl

Mon 5/4

11:59 pm-11:01 am

1 stop14h 02m

$451

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 3/4

6:30 am-11:10 pm

2 stops12h 40m

San Juan Luis Munoz Marin Intl

Wed 3/18

10:10 am-10:10 pm

2 stops15h 00m

$470

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 3/11

11:40 am-11:15 pm

1 stop8h 35m

San Juan Luis Munoz Marin Intl

Sat 5/2

7:15 am-10:21 pm

2 stops18h 06m

$478

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 3/2

5:50 am-12:40 am

2 stops14h 50m

San Juan Luis Munoz Marin Intl

Mon 3/9

2:50 pm-12:45 am

2 stops12h 55m

$481

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 4/22

5:30 am-9:05 pm

2 stops12h 35m

San Juan Luis Munoz Marin Intl

Mon 4/27

2:00 pm-12:25 am

2 stops13h 25m

$485

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 October, then September is your next best option. Flight prices from Portland to San Juan during September average around $489.

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 $580 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 $492 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 09m

Direct flights

None
The fastest flight from Portland to San Juan takes 10h 09m
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 09m.

  • 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
2,893 reviews
Search JetBlue flights
Spirit AirlinesPriceFrom $241Free CancellationRating
6.3
8,414 reviews
Search Spirit Airlines flights
DeltaPriceFrom $262Free CancellationRating
7.9
8,145 reviews
Search Delta flights
American AirlinesPriceFrom $364Free CancellationRating
7.2
11,222 reviews
Search American Airlines flights
United AirlinesPriceFrom $401Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
SouthwestPriceFrom $454Free CancellationRating
8.0
4,274 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

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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