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Cheap flights from Portland to San Juan from $155

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 1/18. 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.
United Airlines Logo
7:00 am - 9:00 pm
PDX
-
SJU
10h 00m1 stop
United Airlines Logo
2:05 am - 2:46 pm
SJU
-
PDX
16h 41m2 stops
$419United Airlines
mié., feb. 4 - mar., feb. 10
American Airlines Logo
6:00 am - 11:59 pm
PDX
-
SJU
13h 59m2 stops
American Airlines Logo
6:00 am - 8:27 pm
SJU
-
PDX
18h 27m1 stop
$457American Airlines
sáb., ene. 24 - lun., feb. 2
Southwest Logo
3:40 pm - 10:30 am
PDX
-
SJU
14h 50m2 stops
Southwest Logo
6:10 am - 3:40 pm
SJU
-
PDX
13h 30m2 stops
$464Southwest
jue., feb. 5 - mié., feb. 11
American Airlines Logo
6:40 am - 10:31 pm
PDX
-
SJU
12h 51m1 stop
American Airlines Logo
3:15 pm - 11:37 pm
SJU
-
PDX
11h 22m1 stop
$466American Airlines
mié., abr. 1 - mié., abr. 15
United Airlines Logo
7:00 am - 9:00 pm
PDX
-
SJU
10h 00m1 stop
United Airlines Logo
2:05 am - 2:46 pm
SJU
-
PDX
16h 41m2 stops
$467United Airlines
jue., feb. 5 - mar., feb. 10
American Airlines Logo
11:01 pm - 5:01 pm
PDX
-
SJU
14h 00m1 stop
American Airlines Logo
6:00 am - 8:27 pm
SJU
-
PDX
18h 27m1 stop
$473American Airlines
jue., ene. 8 - sáb., ene. 17
Delta Logo
6:50 am - 8:58 pm
PDX
-
SJU
10h 08m1 stop
Delta Logo
7:30 am - 8:59 pm
SJU
-
PDX
17h 29m2 stops
$482Delta
jue., feb. 5 - mié., feb. 11
American Airlines Logo
11:01 pm - 5:01 pm
PDX
-
SJU
14h 00m1 stop
American Airlines Logo
7:07 am - 7:51 pm
SJU
-
PDX
16h 44m2 stops
$492American Airlines
jue., feb. 5 - mié., feb. 11
American Airlines Logo
11:46 am - 5:00 am
PDX
-
SJU
13h 14m1 stop
American Airlines Logo
1:30 am - 6:16 pm
SJU
-
PDX
20h 46m1 stop
$495American Airlines
vie., feb. 27 - sáb., mar. 7
United Airlines Logo
8:05 am - 9:24 pm
PDX
-
SJU
10h 19m1 stop
United Airlines Logo
7:40 am - 6:05 pm
SJU
-
PDX
13h 25m1 stop
$499United Airlines
mar., may. 12 - mié., may. 13

United Airlines flights from Portland to San Juan

Our best United Airlines deals on Portland to San Juan flight tickets
United Airlines
Feb 4
PDX7:00 amPortland
10h 00m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU2:05 amSan Juan Luis Munoz Marin Intl
16h 41m
2 stops
PDX2:46 pmPortland
$419
Find similar
United Airlines
Feb 5
PDX7:00 amPortland
10h 00m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU2:05 amSan Juan Luis Munoz Marin Intl
16h 41m
2 stops
PDX2:46 pmPortland
$467
Find similar
United Airlines
May 12
PDX8:05 amPortland
10h 19m
1 stop
SJU9:24 pmSan Juan Luis Munoz Marin Intl
May 13
SJU7:40 amSan Juan Luis Munoz Marin Intl
13h 25m
1 stop
PDX6:05 pmPortland
$499
Find similar

American Airlines flights from Portland to San Juan

Our best American Airlines deals on Portland to San Juan flight tickets
American Airlines
Jan 24
PDX6:00 amPortland
13h 59m
2 stops
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Feb 2
SJU6:00 amSan Juan Luis Munoz Marin Intl
18h 27m
1 stop
PDX8:27 pmPortland
$457
Find similar
American Airlines
Apr 1
PDX6:40 amPortland
12h 51m
1 stop
SJU10:31 pmSan Juan Luis Munoz Marin Intl
Apr 15
SJU3:15 pmSan Juan Luis Munoz Marin Intl
11h 22m
1 stop
PDX11:37 pmPortland
$466
Find similar
American Airlines
Jan 8
PDX6:00 amPortland
11h 39m
1 stop
SJU9:39 pmSan Juan Luis Munoz Marin Intl
Jan 17
SJU8:20 amSan Juan Luis Munoz Marin Intl
16h 07m
2 stops
PDX8:27 pmPortland
$473
Find similar

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 diciembre 18, 2025.
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

mié. 2/4

7:00 am-9:00 pm

1 stop10h 00m

San Juan Luis Munoz Marin Intl

mar. 2/10

2:05 am-2:46 pm

2 stops16h 41m

$419

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

sáb. 1/24

6:00 am-11:59 pm

2 stops13h 59m

San Juan Luis Munoz Marin Intl

lun. 2/2

6:00 am-8:27 pm

1 stop18h 27m

$457

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

jue. 2/5

3:40 pm-10:30 am

2 stops14h 50m

San Juan Luis Munoz Marin Intl

mié. 2/11

6:10 am-3:40 pm

2 stops13h 30m

$464

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

mié. 4/1

6:40 am-10:31 pm

1 stop12h 51m

San Juan Luis Munoz Marin Intl

mié. 4/15

3:15 pm-11:37 pm

1 stop11h 22m

$466

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

jue. 2/5

7:00 am-9:00 pm

1 stop10h 00m

San Juan Luis Munoz Marin Intl

mar. 2/10

2:05 am-2:46 pm

2 stops16h 41m

$467

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

jue. 1/8

11:01 pm-5:01 pm

1 stop14h 00m

San Juan Luis Munoz Marin Intl

sáb. 1/17

6:00 am-8:27 pm

1 stop18h 27m

$473

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

jue. 2/5

6:50 am-8:58 pm

1 stop10h 08m

San Juan Luis Munoz Marin Intl

mié. 2/11

7:30 am-8:59 pm

2 stops17h 29m

$482

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

jue. 2/5

11:01 pm-5:01 pm

1 stop14h 00m

San Juan Luis Munoz Marin Intl

mié. 2/11

7:07 am-7:51 pm

2 stops16h 44m

$492

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

vie. 2/27

11:46 am-5:00 am

1 stop13h 14m

San Juan Luis Munoz Marin Intl

sáb. 3/7

1:30 am-6:16 pm

1 stop20h 46m

$495

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

mar. 5/12

8:05 am-9:24 pm

1 stop10h 19m

San Juan Luis Munoz Marin Intl

mié. 5/13

7:40 am-6:05 pm

1 stop13h 25m

$499

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.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Portland to San Juan is on a Tuesday when prices can be found for as low as $454. The most expensive day to fly to San Juan is Thursday, with ticket prices averaging around $655.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the afternoon when flights can be purchased for as low as $428. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $602 on average. Flights to San Juan from Portland in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $579 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 $494 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 38m

Direct flights

None
The fastest flight from Portland to San Juan takes 9h 38m
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 9h 38m.

  • 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
2,895 reviews
Search JetBlue flights
Spirit AirlinesPriceFrom $243Free CancellationRating
6.3
8,189 reviews
Search Spirit Airlines flights
DeltaPriceFrom $327Free CancellationRating
7.9
8,006 reviews
Search Delta flights
American AirlinesPriceFrom $348Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $402Free CancellationRating
7.4
9,090 reviews
Search United Airlines flights
SouthwestPriceFrom $444Free CancellationRating
7.9
4,249 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