What is the cheapest airline that flies from Washington to Puerto Rico?

Delta, United Airlines, and Frontier are the most popular carriers operating from Washington to Puerto Rico

What airlines fly to Puerto Rico?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Puerto Rico from State of Washington according to our data. American Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 8 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

How long is the flight from State of Washington to Puerto Rico?

Flight times from State of Washington to Puerto Rico vary, but if you’re flying out of Pasco and flying into San Juan Luis Munoz Marin Intl Airport (one of the most popular routes), then the duration is 9h 25m on average. Another popular route from State of Washington to Puerto Rico is flying from Seattle to San Juan Luis Munoz Marin Intl Airport, which will take roughly 9h 25m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Washington to Puerto Rico?

Prices for flights from Washington to Puerto Rico are updated daily.

How many operators does momondo search for flights from Washington to Puerto Rico?

As of February 2026, there are 8 operators available to choose from for flights from Washington to Puerto Rico.

How old do you have to be to fly from Washington to Puerto Rico?

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 Washington to Puerto Rico.

What documentation or ID do you need to fly to Puerto Rico?

The travel and health documents you'll need for your trip to Puerto Rico may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Puerto Rico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$141 Cheap Flights from Washington to Puerto Rico in 2026

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Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:45 pm - 12:50 pm

PDX

SJU

11h 05m

1 stop

5:30 am - 3:00 pm

SJU

PDX

12h 30m

1 stop

$406Southwest

Mon, Aug 10 - Thu, Aug 20

10:16 pm - 6:10 pm

SEA

SJU

16h 54m

1 stop

6:00 am - 9:23 pm

SJU

SEA

18h 23m

1 stop

$409American Airlines

Mon, Apr 13 - Wed, Apr 15

10:47 pm - 12:26 pm

SEA

SJU

10h 39m

1 stop

6:45 am - 12:44 am

SJU

SEA

20h 59m

1 stop

$414American Airlines

Fri, May 1 - Thu, May 7

12:13 pm - 6:56 am

PDX

SJU

39h 43m

2 stops

4:20 pm - 10:43 pm

SJU

PDX

33h 23m

1 stop

$422Multiple Airlines

Sat, May 30 - Wed, Jun 10

7:25 pm - 10:35 am

PDX

SJU

12h 10m

2 stops

1:15 pm - 10:10 pm

SJU

PDX

11h 55m

2 stops

$428Southwest

Tue, May 26 - Thu, Jun 4

2:47 pm - 1:17 am

PDX

SJU

31h 30m

2 stops

6:30 am - 11:50 am

SJU

PDX

32h 20m

3 stops

$432Multiple Airlines

Wed, Apr 1 - Wed, Apr 15

3:35 pm - 12:12 pm

PDX

SJU

17h 37m

2 stops

7:00 am - 5:15 pm

SJU

PDX

13h 15m

2 stops

$450Delta

Sat, May 2 - Sat, May 9

7:00 am - 11:09 pm

SEA

BQN

13h 09m

2 stops

12:15 am - 2:36 pm

BQN

SEA

17h 21m

2 stops

$452United Airlines

Tue, May 12 - Mon, May 18

5:00 am - 8:38 pm

SEA

SJU

12h 38m

2 stops

1:00 am - 10:45 am

SJU

SEA

12h 45m

1 stop

$452United Airlines

Sat, Apr 18 - Fri, Apr 24

5:00 am - 11:59 pm

GEG

SJU

15h 59m

2 stops

1:25 pm - 12:20 am

SJU

GEG

13h 55m

2 stops

$462Delta

Sat, Apr 25 - Thu, Apr 30

Southwest flights from State of Washington to Puerto Rico

Our best Southwest deals on State of Washington to Puerto Rico flight tickets

Southwest

Aug 10

PDX10:45 pmPortland

11h 05m

1 stop

SJU12:50 pmSan Juan Luis Munoz Marin Intl

Aug 20

SJU5:30 amSan Juan Luis Munoz Marin Intl

12h 30m

1 stop

PDX3:00 pmPortland

$406

Southwest

Apr 22

PDX5:40 amPortland

12h 25m

2 stops

SJU9:05 pmSan Juan Luis Munoz Marin Intl

May 5

SJU5:05 amSan Juan Luis Munoz Marin Intl

18h 55m

2 stops

PDX9:00 pmPortland

$428

Southwest

May 26

PDX7:25 pmPortland

12h 10m

2 stops

SJU10:35 amSan Juan Luis Munoz Marin Intl

Jun 6

SJU5:00 amSan Juan Luis Munoz Marin Intl

17h 40m

1 stop

PDX7:40 pmPortland

$438

American Airlines flights from State of Washington to Puerto Rico

Our best American Airlines deals on State of Washington to Puerto Rico flight tickets

American Airlines

Apr 13

SEA10:16 pmSeattle/Tacoma Intl

16h 54m

1 stop

SJU6:10 pmSan Juan Luis Munoz Marin Intl

Apr 15

SJU6:00 amSan Juan Luis Munoz Marin Intl

18h 23m

1 stop

SEA9:23 pmSeattle/Tacoma Intl

$409

American Airlines

May 1

SEA5:00 pmSeattle/Tacoma Intl

18h 42m

1 stop

SJU2:42 pmSan Juan Luis Munoz Marin Intl

May 6

SJU3:10 pmSan Juan Luis Munoz Marin Intl

12h 26m

1 stop

SEA12:36 amSeattle/Tacoma Intl

$414

American Airlines

Apr 20

PDX12:59 amPortland

14h 11m

2 stops

SJU6:10 pmSan Juan Luis Munoz Marin Intl

May 4

SJU5:45 amSan Juan Luis Munoz Marin Intl

21h 08m

1 stop

PDX11:53 pmPortland

$460

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 8/10

10:45 pm-12:50 pm

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Thu 8/20

5:30 am-3:00 pm

1 stop12h 30m

$406

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 4/13

10:16 pm-6:10 pm

1 stop16h 54m

San Juan Luis Munoz Marin Intl

Wed 4/15

6:00 am-9:23 pm

1 stop18h 23m

$409

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/1

10:47 pm-12:26 pm

1 stop10h 39m

San Juan Luis Munoz Marin Intl

Thu 5/7

6:45 am-12:44 am

1 stop20h 59m

$414

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sat 5/30

12:13 pm-6:56 am

2 stops39h 43m

San Juan Luis Munoz Marin Intl

Wed 6/10

4:20 pm-10:43 pm

1 stop33h 23m

$422

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 5/26

7:25 pm-10:35 am

2 stops12h 10m

San Juan Luis Munoz Marin Intl

Thu 6/4

1:15 pm-10:10 pm

2 stops11h 55m

$428

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Wed 4/1

2:47 pm-1:17 am

2 stops31h 30m

San Juan Luis Munoz Marin Intl

Wed 4/15

6:30 am-11:50 am

3 stops32h 20m

$432

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sat 5/2

3:35 pm-12:12 pm

2 stops17h 37m

San Juan Luis Munoz Marin Intl

Sat 5/9

7:00 am-5:15 pm

2 stops13h 15m

$450

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Tue 5/12

7:00 am-11:09 pm

2 stops13h 09m

Aguadilla Borinquen

Mon 5/18

12:15 am-2:36 pm

2 stops17h 21m

$452

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 4/18

5:00 am-8:38 pm

2 stops12h 38m

San Juan Luis Munoz Marin Intl

Fri 4/24

1:00 am-10:45 am

1 stop12h 45m

$452

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 4/25

5:00 am-11:59 pm

2 stops15h 59m

San Juan Luis Munoz Marin Intl

Thu 4/30

1:25 pm-12:20 am

2 stops13h 55m

$462

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Puerto Rico

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

Prices

Airlines

Other information

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in October, then you should wait until January to fly from State of Washington, when ticket prices are also cheap, with an average price of $475.

How far in advance should I book a flight to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $580 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from State of Washington for as low as $504 on momondo.

Can stopping save me money on State of Washington to Puerto Rico flights?

You could potentially save up to 12% on your flight if you consider stops on a State of Washington to Puerto Rico flight.

Cheap State of Washington to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Puerto Rico

Fastest flight time	9h 20m
Direct flights	None

The fastest flight from State of Washington to Puerto Rico takes 9h 20m

There are no direct flights from State of Washington to Puerto Rico. There are no popular flight routes from State of Washington to Puerto Rico.

Search flight deals

When did momondo last update prices for flights from Washington to Puerto Rico?
Prices for flights from Washington to Puerto Rico are updated daily.
How many operators does momondo search for flights from Washington to Puerto Rico?
As of February 2026, there are 8 operators available to choose from for flights from Washington to Puerto Rico.
How old do you have to be to fly from Washington to Puerto Rico?
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 Washington to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The travel and health documents you'll need for your trip to Puerto Rico may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Puerto Rico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Puerto Rico

Compare and see reviews for airlines that fly from State of Washington to Puerto Rico with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $218	Free Cancellation	Rating 6.3 8,491 reviews	Search Spirit Airlines flights
Delta	PriceFrom $224	Free Cancellation	Rating 7.9 8,238 reviews	Search Delta flights
JetBlue	PriceFrom $276	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
United Airlines	PriceFrom $363	Free Cancellation	Rating 7.4 9,346 reviews	Search United Airlines flights
American Airlines	PriceFrom $363	Free Cancellation	Rating 7.2 11,343 reviews	Search American Airlines flights
Sun Country Air	PriceFrom $454	Free Cancellation	Rating 6.8 340 reviews	Search Sun Country Air flights
Southwest	PriceFrom $470	Free Cancellation	Rating 8.0 4,300 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $598	Free Cancellation	Rating 8.0 11,949 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Puerto Rico?

It is quick and easy to find Washington to Puerto Rico flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Puerto Rico that suits you.

Can I find flights from Washington to Puerto Rico with flexible booking policies on momondo?

Yes. All flights to Puerto Rico from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to Puerto Rico?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Puerto Rico.

I’m not ready to book a flight from Washington to Puerto Rico right now. Can momondo alert me if prices change?

Price alerts on flights to Puerto Rico from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Puerto Rico 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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Popular cities in Puerto Rico

Flights to San Juanfrom $79

Flights to Aguadillafrom $164

Flights to Mayagüezfrom $329

Cheap flights from Washington to Puerto Rico from $141

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Puerto Rico departing on 4/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Southwest flights from State of Washington to Puerto Rico

Our best Southwest deals on State of Washington to Puerto Rico flight tickets

American Airlines flights from State of Washington to Puerto Rico

Our best American Airlines deals on State of Washington to Puerto Rico flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Puerto Rico that are best for you.

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from State of Washington to Puerto Rico

What is the cheapest month to fly to Puerto Rico?

How far in advance should I book a flight to Puerto Rico?

Can stopping save me money on State of Washington to Puerto Rico flights?

What is the cheapest airline that flies from Washington to Puerto Rico?

What airlines fly to Puerto Rico?

How long is the flight from State of Washington to Puerto Rico?

Cheap State of Washington to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Puerto Rico

Fastest flight time

Direct flights

Best airlines flying from State of Washington to Puerto Rico

Compare and see reviews for airlines that fly from State of Washington to Puerto Rico with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Puerto Rico?

Can I find flights from Washington to Puerto Rico with flexible booking policies on momondo?

How can momondo help me find flights from Washington to Puerto Rico?

I’m not ready to book a flight from Washington to Puerto Rico right now. Can momondo alert me if prices change?

An easier way to manage your Puerto Rico 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Popular flights according to clicks in the last 7 days on momondo

State of Washington flight routes

According to popular flight searches on momondo this year

Puerto Rico flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Puerto Rico

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Puerto Rico

List of cabin classes available on flights landing in Puerto Rico. Availability may vary depending on flight origin and airline.

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