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Cheap flights from Portland to San Juan from $187

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 8/24. 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 - 10:05 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
13h 15m2 stops Las Vegas Harry Reid Intl Orlando
Southwest Logo
5:00 am - 3:00 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
13h 00m2 stops Orlando Baltimore/Washington
$481Southwest
Wed, Sep 23 - Thu, Sep 24
United Airlines Logo
7:10 am - 8:38 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
10h 28m1 stop Houston George Bush Intcntl
United Airlines Logo
1:00 am - 9:50 amSJU  San Juan Luis Munoz Marin Intl-PDX Portland
11h 50m1 stop Newark
$481United Airlines
Wed, Sep 23 - Wed, Sep 23
United Airlines Logo
7:07 pm - 12:34 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
14h 27m2 stops Denver Intl Washington, D.C. Dulles Intl
United Airlines Logo
2:55 pm - 10:21 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
10h 26m1 stop Houston George Bush Intcntl
$481United Airlines
Wed, Sep 23 - Thu, Sep 24
American Airlines Logo
11:08 pm - 1:57 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
11h 49m2 stops Chicago O'Hare Intl Miami
American Airlines Logo
6:30 am - 7:29 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
15h 59m2 stops Miami Dallas/Fort Worth
$486American Airlines
Thu, Oct 1 - Sat, Oct 31
American Airlines Logo
11:09 pm - 3:00 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
11h 51m1 stop Chicago O'Hare Intl
American Airlines Logo
2:44 pm - 9:59 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
11h 15m1 stop Philadelphia
$486American Airlines
Fri, Nov 6 - Tue, Nov 10
Delta Logo
7:05 am - 11:55 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
12h 50m1 stop New York John F Kennedy Intl
Delta Logo
3:10 pm - 10:02 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
10h 52m1 stop Detroit Metropolitan Wayne County
$486Delta
Thu, Nov 12 - Tue, Nov 17
Delta Logo
8:44 pm - 3:10 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
15h 26m2 stops Seattle/Tacoma Intl Minneapolis St Paul
Delta Logo
7:15 am - 6:53 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
15h 38m2 stops New York John F Kennedy Intl Seattle/Tacoma Intl
$486Delta
Fri, Oct 30 - Sat, Dec 5
Southwest Logo
7:35 pm - 9:20 amPDX  Portland-SJU San Juan Luis Munoz Marin Intl
10h 45m2 stops Denver Intl Orlando
Southwest Logo
5:00 am - 4:00 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
14h 00m2 stops Orlando Phoenix Sky Harbor Intl
$486Southwest
Thu, Oct 22 - Sun, Oct 25
JetBlue Logo
11:27 pm - 1:11 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
10h 44m1 stop Boston Logan Intl
JetBlue Logo
1:50 pm - 10:30 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
11h 40m1 stop Boston Logan Intl
$511JetBlue
Fri, Aug 28 - Fri, Sep 4
JetBlue Logo
11:27 pm - 2:11 pmPDX  Portland-SJU San Juan Luis Munoz Marin Intl
11h 44m1 stop Boston Logan Intl
JetBlue Logo
5:04 am - 1:01 pmSJU  San Juan Luis Munoz Marin Intl-PDX Portland
10h 57m1 stop Boston Logan Intl
$511JetBlue
Sat, Aug 29 - Thu, Sep 3

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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
Feb 3
PDX7:40 amPortland
12h 19m
2 stops
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Feb 9
SJU1:24 pmSan Juan Luis Munoz Marin Intl
14h 22m
1 stop
PDX11:46 pmPortland
$491
American Airlines
Aug 29
PDX5:59 amPortland
13h 55m
1 stop
SJU10:54 pmSan Juan Luis Munoz Marin Intl
Sep 3
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 51m
2 stops
PDX4:51 pmPortland
$511
American Airlines
Jan 9
PDX6:22 pmPortland
12h 26m
2 stops
SJU10:48 amSan Juan Luis Munoz Marin Intl
Jan 24
SJU6:00 amSan Juan Luis Munoz Marin Intl
17h 41m
1 stop
PDX7:41 pmPortland
$526

United Airlines flights from Portland to San Juan

Our best United Airlines deals on Portland to San Juan flight tickets
United Airlines
Sep 23
PDX7:10 amPortland
10h 28m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Sep 23
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
PDX9:50 amPortland
$481
United Airlines
Sep 2
PDX7:10 amPortland
10h 28m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Sep 6
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
PDX9:50 amPortland
$506
United Airlines
Sep 2
PDX5:00 amPortland
15h 50m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Sep 6
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
PDX9:50 amPortland
$510

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 August 8, 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 Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Wed 9/23

5:50 am-10:05 pm

2 stops13h 15m

San Juan Luis Munoz Marin Intl

Thu 9/24

5:00 am-3:00 pm

2 stops13h 00m

$481
Quickest round-trip

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Wed 9/23

7:10 am-8:38 pm

1 stop10h 28m

San Juan Luis Munoz Marin Intl

Wed 9/23

1:00 am-9:50 am

1 stop11h 50m

$481

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Wed 9/23

7:07 pm-12:34 pm

2 stops14h 27m

San Juan Luis Munoz Marin Intl

Thu 9/24

2:55 pm-10:21 pm

1 stop10h 26m

$481

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Thu 10/1

11:08 pm-1:57 pm

2 stops11h 49m

San Juan Luis Munoz Marin Intl

Sat 10/31

6:30 am-7:29 pm

2 stops15h 59m

$486

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Fri 11/6

11:09 pm-3:00 pm

1 stop11h 51m

San Juan Luis Munoz Marin Intl

Tue 11/10

2:44 pm-9:59 pm

1 stop11h 15m

$486

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Thu 11/12

7:05 am-11:55 pm

1 stop12h 50m

San Juan Luis Munoz Marin Intl

Tue 11/17

3:10 pm-10:02 pm

1 stop10h 52m

$486

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Fri 10/30

8:44 pm-3:10 pm

2 stops15h 26m

San Juan Luis Munoz Marin Intl

Sat 12/5

7:15 am-6:53 pm

2 stops15h 38m

$486

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Thu 10/22

7:35 pm-9:20 am

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Sun 10/25

5:00 am-4:00 pm

2 stops14h 00m

$486

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Fri 8/28

11:27 pm-1:11 pm

1 stop10h 44m

San Juan Luis Munoz Marin Intl

Fri 9/4

1:50 pm-10:30 pm

1 stop11h 40m

$511

PortlandSan Juan

PDX Portland - SJU San Juan Luis Munoz Marin Intl

PDXSJU

Portland

Sat 8/29

11:27 pm-2:11 pm

1 stop11h 44m

San Juan Luis Munoz Marin Intl

Thu 9/3

5:04 am-1:01 pm

1 stop10h 57m

$511

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $466 to $646.
The lowest price recently found on this route was $481.

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in September, then October is your next best option. Flight prices from Portland to San Juan during October average around $468.

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 $583 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 $500 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 56m

Direct flights

None
The fastest flight from Portland to San Juan takes 10h 56m
There are no direct flights from Portland to San Juan. There are no popular flight routes from Portland to San Juan.
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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 10h 56m.

  • 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
8,504 reviews
Search Delta flights
American AirlinesPriceFrom $399Free CancellationRating
7.1
11,885 reviews
Search American Airlines flights
SouthwestPriceFrom $408Free CancellationRating
8.0
4,215 reviews
Search Southwest flights
United AirlinesPriceFrom $419Free CancellationRating
7.4
10,085 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