Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland to San Juan from $172

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 9/10. 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
5:50 am - 9:05 pm
PDX
-
SJU
12h 15m
2 stops
Southwest Logo
10:00 am - 8:45 pm
SJU
-
PDX
13h 45m
2 stops
$436Southwest
Wed, Aug 19 - Thu, Aug 27
Southwest Logo
10:45 pm - 12:50 pm
PDX
-
SJU
11h 05m
1 stop
Southwest Logo
5:30 am - 3:00 pm
SJU
-
PDX
12h 30m
1 stop
$451Southwest
Mon, Sep 21 - Thu, Sep 24
Delta Logo
5:30 am - 11:55 pm
PDX
-
SJU
14h 25m
2 stops
Delta Logo
7:15 am - 6:17 pm
SJU
-
PDX
15h 02m
2 stops
$466Delta
Mon, Nov 9 - Tue, Nov 17
American Airlines Logo
6:00 am - 9:39 pm
PDX
-
SJU
11h 39m
1 stop
American Airlines Logo
4:27 pm - 11:59 pm
SJU
-
PDX
11h 32m
1 stop
$471American Airlines
Wed, Jan 6 - Tue, Jan 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
$477American Airlines
Fri, Sep 11 - Wed, Sep 16
JetBlue Logo
11:27 pm - 2:11 pm
PDX
-
SJU
11h 44m
1 stop
JetBlue Logo
1:50 pm - 10:49 pm
SJU
-
PDX
11h 59m
1 stop
$484JetBlue
Sat, Aug 29 - Thu, Sep 3
United Airlines Logo
7:10 am - 8:38 pm
PDX
-
SJU
10h 28m
1 stop
United Airlines Logo
1:00 am - 9:50 am
SJU
-
PDX
11h 50m
1 stop
$490United Airlines
Fri, Aug 21 - Tue, Aug 25
United Airlines Logo
7:10 am - 8:38 pm
PDX
-
SJU
10h 28m
1 stop
United Airlines Logo
1:00 am - 9:50 am
SJU
-
PDX
11h 50m
1 stop
$492United Airlines
Tue, Aug 18 - Sun, Aug 23
United Airlines Logo
11:30 pm - 12:34 pm
PDX
-
SJU
10h 04m
1 stop
United Airlines Logo
1:00 am - 9:25 am
SJU
-
PDX
11h 25m
1 stop
$493United Airlines
Fri, Aug 7 - Sun, Aug 9
Delta Logo
7:00 am - 11:55 pm
PDX
-
SJU
12h 55m
1 stop
Delta Logo
7:00 am - 1:25 pm
SJU
-
PDX
10h 25m
1 stop
$500Delta
Thu, Nov 12 - Tue, Nov 17

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Portland to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Portland to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Aug 21
PDX7:10 amPortland
10h 28m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
PDX9:50 amPortland
$490
United Airlines
Aug 18
PDX7:10 amPortland
10h 28m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Aug 23
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
PDX9:50 amPortland
$492
United Airlines
Aug 7
PDX11:30 pmPortland
10h 04m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
Aug 9
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 25m
1 stop
PDX9:25 amPortland
$493

Southwest flights from Portland to San Juan Luis Munoz Marin Intl Airport

Our best Southwest deals on Portland to San Juan Luis Munoz Marin Intl Airport flight tickets
Southwest
Aug 19
PDX5:50 amPortland
12h 15m
2 stops
SJU9:05 pmSan Juan Luis Munoz Marin Intl
Aug 27
SJU10:00 amSan Juan Luis Munoz Marin Intl
13h 45m
2 stops
PDX8:45 pmPortland
$436
Southwest
Sep 21
PDX10:45 pmPortland
11h 05m
1 stop
SJU12:50 pmSan Juan Luis Munoz Marin Intl
Sep 24
SJU5:30 amSan Juan Luis Munoz Marin Intl
12h 30m
1 stop
PDX3:00 pmPortland
$451
Southwest
Nov 18
PDX6:20 amPortland
11h 55m
2 stops
SJU10:15 pmSan Juan Luis Munoz Marin Intl
Nov 24
SJU1:20 pmSan Juan Luis Munoz Marin Intl
14h 05m
2 stops
PDX11:25 pmPortland
$550

momondo Fare Finder

 
Customize your flight search to find flights from Portland 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 July 11, 2026.
Use the filters below to find and compare flights from Portland 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

PDX - SJU

PDXSJU

Portland

Wed 8/19

5:50 am-9:05 pm

2 stops12h 15m

San Juan Luis Munoz Marin Intl

Thu 8/27

10:00 am-8:45 pm

2 stops13h 45m

$436

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 9/21

10:45 pm-12:50 pm

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Thu 9/24

5:30 am-3:00 pm

1 stop12h 30m

$451

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 11/9

5:30 am-11:55 pm

2 stops14h 25m

San Juan Luis Munoz Marin Intl

Tue 11/17

7:15 am-6:17 pm

2 stops15h 02m

$466

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 1/6

6:00 am-9:39 pm

1 stop11h 39m

San Juan Luis Munoz Marin Intl

Tue 1/12

4:27 pm-11:59 pm

1 stop11h 32m

$471

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 9/11

11:06 pm-2:50 pm

1 stop12h 44m

San Juan Luis Munoz Marin Intl

Wed 9/16

2:22 pm-11:28 pm

1 stop12h 06m

$477

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sat 8/29

11:27 pm-2:11 pm

1 stop11h 44m

San Juan Luis Munoz Marin Intl

Thu 9/3

1:50 pm-10:49 pm

1 stop11h 59m

$484

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 8/21

7:10 am-8:38 pm

1 stop10h 28m

San Juan Luis Munoz Marin Intl

Tue 8/25

1:00 am-9:50 am

1 stop11h 50m

$490

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 8/18

7:10 am-8:38 pm

1 stop10h 28m

San Juan Luis Munoz Marin Intl

Sun 8/23

1:00 am-9:50 am

1 stop11h 50m

$492
Quickest round-trip

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 8/7

11:30 pm-12:34 pm

1 stop10h 04m

San Juan Luis Munoz Marin Intl

Sun 8/9

1:00 am-9:25 am

1 stop11h 25m

$493

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Thu 11/12

7:00 am-11:55 pm

1 stop12h 55m

San Juan Luis Munoz Marin Intl

Tue 11/17

7:00 am-1:25 pm

1 stop10h 25m

$500

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Juan from

How to get the cheapest flight ticket from Portland 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 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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $489.

How far in advance should I book a flight from Portland 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 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 $582 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 for as low as $541 on momondo.

Can stopping save me money on Portland to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 12% on your flight if you consider stops on a Portland to San Juan Luis Munoz Marin Intl Airport flight.

How have Portland to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of July 2026, prices for Portland to San Juan Luis Munoz Marin Intl Airport flights are approximately 36% more expensive when compared to flights at the same time last year.

When to book flights from Portland 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 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 to San Juan Luis Munoz Marin Intl Airport (PDX to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

9h 38m

Direct flights

None
The fastest flight from Portland to San Juan Luis Munoz Marin Intl Airport takes 9h 38m
There are no direct flights from Portland to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Portland to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

Frequently asked questions about flying from Portland to San Juan Luis Munoz Marin Intl Airport

  • How far is Portland to San Juan Luis Munoz Marin Intl by plane?

    There are 3713.4 mi between Portland and San Juan Luis Munoz Marin Intl. A reasonable flight in good conditions will take 9h 38m.

  • 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 were last updated today.

  • 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required for your trip to San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Portland to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Portland to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Portland to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $235Free CancellationRating
7.8
8,457 reviews
Search Delta flights
American AirlinesPriceFrom $399Free CancellationRating
7.1
11,806 reviews
Search American Airlines flights
SouthwestPriceFrom $408Free CancellationRating
7.9
4,248 reviews
Search Southwest flights
United AirlinesPriceFrom $418Free CancellationRating
7.4
9,976 reviews
Search United Airlines 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
Rio Grande
Humacao
Caguas
Bayamón

Why use momondo?

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

Finding the right flight to San Juan from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

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

Flights from Portland to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Portland to San Juan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to San Juan right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Juan from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Juan Luis Munoz Marin Intl Airport 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 8/10
Mon 8/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Juan