What is the cheapest airline that flies from Seattle/Tacoma Intl to Puerto Rico?

JetBlue, American Airlines, and Southwest are the most popular carriers operating from Seattle/Tacoma Intl 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 Seattle according to our data. American Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 9 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Puerto Rico?

Prices for flights from Seattle/Tacoma Intl Airport to Puerto Rico were last updated today.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Puerto Rico?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Puerto Rico is 9 as of August 2025.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Puerto Rico?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport 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.

$171 Cheap Flights from Seattle to Puerto Rico in 2025

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Find the cheapest flights from Seattle to Puerto Rico

Round-trip

One-way

Last minute

Cheap round-trip flights

11:59 pm - 4:43 pmSEA-SJU

13h 44m1 stop

2:05 pm - 10:10 pmSJU-SEA

11h 05m1 stop

$363JetBlue

Find Deal

mar., sep. 23 - mar., oct. 7

11:59 pm - 4:43 pmSEA-SJU

13h 44m1 stop

2:05 pm - 10:10 pmSJU-SEA

11h 05m1 stop

$364JetBlue

Find Deal

vie., oct. 3 - mar., oct. 7

5:43 pm - 12:47 pmSEA-SJU

16h 04m2 stops

12:01 pm - 9:23 pmSJU-SEA

12h 22m2 stops

$377American Airlines

Find Deal

mar., sep. 23 - mar., sep. 30

8:51 pm - 12:50 pmSEA-SJU

12h 59m1 stop

12:01 pm - 11:59 pmSJU-SEA

14h 58m1 stop

$380American Airlines

Find Deal

sáb., sep. 6 - sáb., sep. 20

7:00 pm - 12:00 pmSEA-SJU

14h 00m2 stops

7:00 am - 5:53 pmSJU-SEA

13h 53m2 stops

$399United Airlines

Find Deal

lun., sep. 22 - sáb., sep. 27

6:35 am - 12:35 amSEA-SJU

14h 00m2 stops

2:05 pm - 10:55 pmSJU-SEA

12h 50m2 stops

$417Southwest

Find Deal

mar., nov. 18 - vie., dic. 5

5:15 am - 7:45 pmSEA-SJU

11h 30m2 stops

7:40 am - 7:50 pmSJU-SEA

15h 10m2 stops

$423Southwest

Find Deal

mié., oct. 1 - mié., oct. 8

7:13 pm - 12:49 pmSEA-SJU

13h 36m2 stops

2:05 am - 1:29 pmSJU-SEA

15h 24m2 stops

$432United Airlines

Find Deal

mié., nov. 19 - mié., nov. 26

6:15 am - 11:19 pmSEA-SJU

13h 04m1 stop

7:00 am - 7:25 pmSJU-SEA

16h 25m1 stop

$496Delta

Find Deal

mié., dic. 31 - sáb., ene. 10

11:55 pm - 4:25 pmSEA-SJU

13h 30m2 stops

7:15 am - 3:50 pmSJU-SEA

11h 35m1 stop

$501Delta

Find Deal

mié., oct. 22 - sáb., oct. 25

American Airlines flights from Seattle to Puerto Rico

Our best American Airlines deals on Seattle to Puerto Rico flight tickets

American Airlines

Sep 23

SEA5:43 pmSeattle/Tacoma Intl

16h 04m

2 stops

SJU12:47 pmSan Juan Luis Munoz Marin Intl

Sep 30

SJU12:01 pmSan Juan Luis Munoz Marin Intl

12h 22m

2 stops

SEA9:23 pmSeattle/Tacoma Intl

$377

Find similar

American Airlines

Sep 6

SEA8:51 pmSeattle/Tacoma Intl

12h 59m

1 stop

SJU12:50 pmSan Juan Luis Munoz Marin Intl

Sep 20

SJU12:01 pmSan Juan Luis Munoz Marin Intl

14h 58m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

$380

Find similar

American Airlines

Oct 4

SEA5:43 pmSeattle/Tacoma Intl

17h 32m

1 stop

SJU2:15 pmSan Juan Luis Munoz Marin Intl

Oct 7

SJU7:00 amSan Juan Luis Munoz Marin Intl

12h 54m

2 stops

SEA4:54 pmSeattle/Tacoma Intl

$386

Find similar

Southwest flights from Seattle to Puerto Rico

Our best Southwest deals on Seattle to Puerto Rico flight tickets

Southwest

Nov 18

SEA6:35 amSeattle/Tacoma Intl

14h 00m

2 stops

SJU12:35 amSan Juan Luis Munoz Marin Intl

Dec 5

SJU2:05 pmSan Juan Luis Munoz Marin Intl

12h 50m

2 stops

SEA10:55 pmSeattle/Tacoma Intl

$417

Find similar

Southwest

Oct 1

SEA5:15 amSeattle/Tacoma Intl

11h 30m

2 stops

SJU7:45 pmSan Juan Luis Munoz Marin Intl

Oct 8

SJU7:40 amSan Juan Luis Munoz Marin Intl

15h 10m

2 stops

SEA7:50 pmSeattle/Tacoma Intl

$423

Find similar

Southwest

Oct 3

SEA8:20 amSeattle/Tacoma Intl

12h 30m

2 stops

SJU11:50 pmSan Juan Luis Munoz Marin Intl

Oct 7

SJU6:10 amSan Juan Luis Munoz Marin Intl

16h 40m

2 stops

SEA7:50 pmSeattle/Tacoma Intl

$434

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

mar. 9/23

11:59 pm-4:43 pm

1 stop13h 44m

San Juan Luis Munoz Marin Intl

mar. 10/7

2:05 pm-10:10 pm

1 stop11h 05m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

vie. 10/3

11:59 pm-4:43 pm

1 stop13h 44m

San Juan Luis Munoz Marin Intl

mar. 10/7

2:05 pm-10:10 pm

1 stop11h 05m

$364

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

mar. 9/23

5:43 pm-12:47 pm

2 stops16h 04m

San Juan Luis Munoz Marin Intl

mar. 9/30

12:01 pm-9:23 pm

2 stops12h 22m

$377

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

sáb. 9/6

8:51 pm-12:50 pm

1 stop12h 59m

San Juan Luis Munoz Marin Intl

sáb. 9/20

12:01 pm-11:59 pm

1 stop14h 58m

$380

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

lun. 9/22

7:00 pm-12:00 pm

2 stops14h 00m

San Juan Luis Munoz Marin Intl

sáb. 9/27

7:00 am-5:53 pm

2 stops13h 53m

$399

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

mar. 11/18

6:35 am-12:35 am

2 stops14h 00m

San Juan Luis Munoz Marin Intl

vie. 12/5

2:05 pm-10:55 pm

2 stops12h 50m

$417

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

mié. 10/1

5:15 am-7:45 pm

2 stops11h 30m

San Juan Luis Munoz Marin Intl

mié. 10/8

7:40 am-7:50 pm

2 stops15h 10m

$423

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

mié. 11/19

7:13 pm-12:49 pm

2 stops13h 36m

San Juan Luis Munoz Marin Intl

mié. 11/26

2:05 am-1:29 pm

2 stops15h 24m

$432

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

mié. 12/31

6:15 am-11:19 pm

1 stop13h 04m

San Juan Luis Munoz Marin Intl

sáb. 1/10

7:00 am-7:25 pm

1 stop16h 25m

$496

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

mié. 10/22

11:55 pm-4:25 pm

2 stops13h 30m

San Juan Luis Munoz Marin Intl

sáb. 10/25

7:15 am-3:50 pm

1 stop11h 35m

$501

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How to get the cheapest flight ticket from Seattle 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

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in January, then you should wait until October to fly from Seattle, when ticket prices are also cheap, with an average price of $478.

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $504. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $693.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from Seattle to Puerto Rico during this time can be as low as $465. In contrast, the most expensive time of day to depart to Puerto Rico is in the evening when prices are around $584.

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

You are more likely to see cheaper flights to Puerto Rico from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $594 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Seattle for as low as $484 on momondo.

Can stopping save me money on Seattle to Puerto Rico flights?

You could potentially save up to 8% on your flight if you consider stops on a Seattle to Puerto Rico flight.

Cheap Seattle to Puerto Rico flight deals and tips

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

Best Price Found	$171
Fastest flight time	9h 33m
Direct flights	None
Airports in Puerto Rico	2 airports

The best one-way flight to Puerto Rico from Seattle in the past 72 hours is $171. The best round-trip flight deal from Seattle to Puerto Rico found on momondo in the last 72 hours is $363.

The fastest flight from Seattle to Puerto Rico takes 9h 33m

There are no direct flights from Seattle to Puerto Rico. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Aguadilla Borinquen Airport and Seattle/Tacoma Intl Airport - San Juan Luis Munoz Marin Intl Airport.

There are 2 airports near Puerto Rico: Aguadilla Borinquen (BQN), San Juan Luis Munoz Marin Intl (SJU)

Search flight deals

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Puerto Rico?
Prices for flights from Seattle/Tacoma Intl Airport to Puerto Rico were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Puerto Rico?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Puerto Rico is 9 as of August 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Puerto Rico?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport 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 Seattle to Puerto Rico

Compare and see reviews for airlines that fly from Seattle to Puerto Rico with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $175	Free Cancellation	Rating 5.8 3,219 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $233	Free Cancellation	Rating 6.3 8,045 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $286	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
United Airlines	PriceFrom $306	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
American Airlines	PriceFrom $337	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $365	Free Cancellation	Rating 8.0 7,980 reviews	Search Delta flights
Sun Country Air	PriceFrom $447	Free Cancellation	Rating 6.9 333 reviews	Search Sun Country Air flights
Southwest	PriceFrom $521	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $678	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Puerto Rico from Seattle 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 Puerto Rico quick and easy, saving you time and money.

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

All flight searches from Seattle to Puerto Rico on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Seattle and Puerto Rico by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Puerto Rico from Seattle. 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 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.

Start using Trips

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Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Flights to San Juanfrom $103

Flights to Aguadillafrom $176

Flights to Mayagüezfrom $294

Cheap flights from Seattle to Puerto Rico from $171

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Puerto Rico departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Puerto Rico

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

American Airlines flights from Seattle to Puerto Rico

Our best American Airlines deals on Seattle to Puerto Rico flight tickets

Southwest flights from Seattle to Puerto Rico

Our best Southwest deals on Seattle to Puerto Rico flight tickets

momondo Fare Finder

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

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Seattle 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

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in January, then you should wait until October to fly from Seattle, when ticket prices are also cheap, with an average price of $478.

What is the cheapest day to depart on your flight to Puerto Rico?

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from Seattle to Puerto Rico during this time can be as low as $465. In contrast, the most expensive time of day to depart to Puerto Rico is in the evening when prices are around $584.

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

Can stopping save me money on Seattle to Puerto Rico flights?

You could potentially save up to 8% on your flight if you consider stops on a Seattle to Puerto Rico flight.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Puerto Rico?

JetBlue, American Airlines, and Southwest are the most popular carriers operating from Seattle/Tacoma Intl to Puerto Rico

What airlines fly to Puerto Rico?

Cheap Seattle to Puerto Rico flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Puerto Rico

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Puerto Rico?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Puerto Rico?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Puerto Rico?

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

Best airlines flying from Seattle to Puerto Rico

Compare and see reviews for airlines that fly from Seattle to Puerto Rico with momondo

Why use momondo?

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

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

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

I’m not ready to book a flight from Seattle 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