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Cheap flights from Seattle to Puerto Rico from $227

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 8/10. 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
0 bags

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Find the cheapest flights from Seattle to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
9:40 pm - 1:34 pm
SEA
-
SJU
12h 54m
1 stop
JetBlue Logo
10:30 am - 8:42 pm
SJU
-
SEA
13h 12m
1 stop
$450JetBlue
Tue, Sep 22 - Wed, Sep 30
Southwest Logo
6:15 am - 11:50 pm
SEA
-
SJU
14h 35m
2 stops
Southwest Logo
10:00 am - 8:45 pm
SJU
-
SEA
13h 45m
2 stops
$454Southwest
Thu, Aug 20 - Fri, Aug 28
American Airlines Logo
5:10 am - 11:59 pm
SEA
-
SJU
15h 49m
1 stop
American Airlines Logo
12:59 am - 9:17 am
SJU
-
SEA
11h 18m
1 stop
$459American Airlines
Wed, Sep 2 - Sun, Sep 6
American Airlines Logo
11:38 pm - 2:45 pm
SEA
-
SJU
12h 07m
1 stop
American Airlines Logo
2:05 pm - 11:02 pm
SJU
-
SEA
11h 57m
1 stop
$460American Airlines
Thu, Sep 10 - Tue, Sep 15
American Airlines Logo
5:31 pm - 3:02 pm
SEA
-
SJU
18h 31m
1 stop
American Airlines Logo
8:35 am - 7:30 pm
SJU
-
SEA
13h 55m
2 stops
$470American Airlines
Thu, Oct 15 - Tue, Oct 20
Southwest Logo
10:30 pm - 12:50 pm
SEA
-
SJU
11h 20m
1 stop
Southwest Logo
6:25 am - 5:00 pm
SJU
-
SEA
13h 35m
2 stops
$474Southwest
Mon, Aug 10 - Sat, Aug 15
Delta Logo
10:40 pm - 4:33 pm
SEA
-
SJU
14h 53m
1 stop
Delta Logo
2:59 pm - 11:57 pm
SJU
-
SEA
11h 58m
1 stop
$486Delta
Tue, Aug 11 - Thu, Aug 27
Southwest Logo
10:30 pm - 12:50 pm
SEA
-
SJU
11h 20m
1 stop
Southwest Logo
5:30 am - 3:00 pm
SJU
-
SEA
12h 30m
1 stop
$490Southwest
Mon, Aug 10 - Mon, Aug 24
United Airlines Logo
7:00 am - 11:09 pm
SEA
-
BQN
13h 09m
1 stop
United Airlines Logo
12:15 am - 11:27 am
BQN
-
SEA
14h 12m
2 stops
$584United Airlines
Mon, Sep 28 - Wed, Sep 30
United Airlines Logo
5:00 am - 11:09 pm
SEA
-
BQN
15h 09m
2 stops
United Airlines Logo
12:15 am - 2:49 pm
BQN
-
SEA
17h 34m
2 stops
$635United Airlines
Mon, Sep 28 - Wed, Sep 30

Delta flights from Seattle to Puerto Rico

Our best Delta deals on Seattle to Puerto Rico flight tickets
Delta
Aug 18
SEA8:38 amSeattle/Tacoma Intl
10h 51m
1 stop
SJU10:29 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU2:59 pmSan Juan Luis Munoz Marin Intl
11h 58m
1 stop
SEA11:57 pmSeattle/Tacoma Intl
$454
Delta
Aug 11
SEA10:40 pmSeattle/Tacoma Intl
14h 53m
1 stop
SJU4:33 pmSan Juan Luis Munoz Marin Intl
Aug 27
SJU2:59 pmSan Juan Luis Munoz Marin Intl
11h 58m
1 stop
SEA11:57 pmSeattle/Tacoma Intl
$486
Delta
Jul 28
SEA7:50 pmSeattle/Tacoma Intl
14h 21m
2 stops
SJU1:11 pmSan Juan Luis Munoz Marin Intl
Aug 11
SJU2:59 pmSan Juan Luis Munoz Marin Intl
11h 58m
1 stop
SEA11:57 pmSeattle/Tacoma Intl
$510

JetBlue flights from Seattle to Puerto Rico

Our best JetBlue deals on Seattle to Puerto Rico flight tickets
JetBlue
Jun 2
SEA11:35 amSeattle/Tacoma Intl
31h 07m
1 stop
SJU9:42 pmSan Juan Luis Munoz Marin Intl
Jun 11
SJU6:25 amSan Juan Luis Munoz Marin Intl
17h 15m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$608
JetBlue
Jun 1
SEA11:39 pmSeattle/Tacoma Intl
20h 14m
1 stop
SJU10:53 pmSan Juan Luis Munoz Marin Intl
Jun 11
SJU6:25 amSan Juan Luis Munoz Marin Intl
17h 15m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$610
JetBlue
Jun 1
SEA11:39 pmSeattle/Tacoma Intl
20h 14m
1 stop
SJU10:53 pmSan Juan Luis Munoz Marin Intl
Jun 11
SJU6:00 amSan Juan Luis Munoz Marin Intl
19h 49m
1 stop
SEA10:49 pmSeattle/Tacoma Intl
$613

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Puerto Rico 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 May 22, 2026.
Use the filters below to find and compare flights from Seattle to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 9/22

9:40 pm-1:34 pm

1 stop12h 54m

San Juan Luis Munoz Marin Intl

Wed 9/30

10:30 am-8:42 pm

1 stop13h 12m

$450

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 8/20

6:15 am-11:50 pm

2 stops14h 35m

San Juan Luis Munoz Marin Intl

Fri 8/28

10:00 am-8:45 pm

2 stops13h 45m

$454

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 9/2

5:10 am-11:59 pm

1 stop15h 49m

San Juan Luis Munoz Marin Intl

Sun 9/6

12:59 am-9:17 am

1 stop11h 18m

$459

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 9/10

11:38 pm-2:45 pm

1 stop12h 07m

San Juan Luis Munoz Marin Intl

Tue 9/15

2:05 pm-11:02 pm

1 stop11h 57m

$460

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Thu 10/15

5:31 pm-3:02 pm

1 stop18h 31m

San Juan Luis Munoz Marin Intl

Tue 10/20

8:35 am-7:30 pm

2 stops13h 55m

$470

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 8/10

10:30 pm-12:50 pm

1 stop11h 20m

San Juan Luis Munoz Marin Intl

Sat 8/15

6:25 am-5:00 pm

2 stops13h 35m

$474

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 8/11

10:40 pm-4:33 pm

1 stop14h 53m

San Juan Luis Munoz Marin Intl

Thu 8/27

2:59 pm-11:57 pm

1 stop11h 58m

$486
Quickest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 8/10

10:30 pm-12:50 pm

1 stop11h 20m

San Juan Luis Munoz Marin Intl

Mon 8/24

5:30 am-3:00 pm

1 stop12h 30m

$490

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Mon 9/28

7:00 am-11:09 pm

1 stop13h 09m

Aguadilla Borinquen

Wed 9/30

12:15 am-11:27 am

2 stops14h 12m

$584

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Mon 9/28

5:00 am-11:09 pm

2 stops15h 09m

Aguadilla Borinquen

Wed 9/30

12:15 am-2:49 pm

2 stops17h 34m

$635

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 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 May, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $182.

How far in advance should I book a flight from Seattle 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 $588 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 $502 on momondo.

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

You could potentially save up to 7% 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

Fastest flight time

10h 16m

Direct flights

None
The fastest flight from Seattle to Puerto Rico takes 10h 16m
There are no direct flights from Seattle to Puerto Rico. There are no popular flight routes from Seattle to Puerto Rico.
Search flight deals

Frequently asked questions about flying from Seattle to Puerto Rico

  • 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?

  • 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
FrontierPriceFrom $175Free CancellationRating
5.6
2,945 reviews
Search Frontier flights
JetBluePriceFrom $282Free CancellationRating
7.2
2,982 reviews
Search JetBlue flights
DeltaPriceFrom $342Free CancellationRating
7.9
8,450 reviews
Search Delta flights
United AirlinesPriceFrom $363Free CancellationRating
7.4
9,750 reviews
Search United Airlines flights
American AirlinesPriceFrom $365Free CancellationRating
7.1
11,642 reviews
Search American Airlines flights
Sun Country AirPriceFrom $454Free CancellationRating
6.8
334 reviews
Search Sun Country Air flights
SouthwestPriceFrom $494Free CancellationRating
7.9
4,281 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $587Free CancellationRating
7.9
12,392 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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