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Cheap flights from Seattle to Puerto Rico from $216

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 8/14. 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 Seattle to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:25 pm - 12:20 pm
SEA
-
SJU
13h 55m
2 stops
Southwest Logo
1:20 pm - 11:05 pm
SJU
-
SEA
12h 45m
2 stops
$436Southwest
Mon, Aug 17 - Wed, Aug 26
Southwest Logo
10:30 pm - 1:10 pm
SEA
-
SJU
11h 40m
1 stop
Southwest Logo
5:30 am - 3:00 pm
SJU
-
SEA
12h 30m
1 stop
$446Southwest
Fri, Sep 25 - Mon, Sep 28
American Airlines Logo
11:56 pm - 4:11 pm
SEA
-
SJU
13h 15m
2 stops
American Airlines Logo
6:00 am - 4:41 pm
SJU
-
SEA
13h 41m
2 stops
$456American Airlines
Mon, Aug 24 - Tue, Sep 1
Delta Logo
7:15 am - 11:48 pm
SEA
-
SJU
13h 33m
1 stop
Delta Logo
7:30 am - 6:30 pm
SJU
-
SEA
14h 00m
1 stop
$460Delta
Wed, Sep 23 - Sat, Oct 3
Delta Logo
9:55 pm - 1:05 pm
SEA
-
SJU
11h 10m
1 stop
Delta Logo
7:15 am - 6:30 pm
SJU
-
SEA
15h 15m
2 stops
$464Delta
Sat, Dec 5 - Sat, Dec 12
American Airlines Logo
5:10 am - 11:59 pm
SEA
-
SJU
15h 49m
1 stop
American Airlines Logo
7:30 am - 6:48 pm
SJU
-
SEA
14h 18m
1 stop
$465American Airlines
Wed, Sep 2 - Tue, Sep 8
Southwest Logo
5:20 am - 9:05 pm
SEA
-
SJU
12h 45m
2 stops
Southwest Logo
10:30 am - 8:25 pm
SJU
-
SEA
12h 55m
2 stops
$466Southwest
Tue, Aug 18 - Tue, Aug 25
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
$475JetBlue
Mon, Sep 21 - Thu, Sep 24
United Airlines Logo
11:59 pm - 3:42 pm
SEA
-
SJU
12h 43m
1 stop
United Airlines Logo
7:00 am - 2:52 pm
SJU
-
SEA
10h 52m
1 stop
$478United Airlines
Mon, Aug 17 - Sun, Aug 30
United Airlines Logo
7:00 am - 11:09 pm
SEA
-
BQN
13h 09m
1 stop
United Airlines Logo
12:15 am - 10:54 am
BQN
-
SEA
13h 39m
1 stop
$564United Airlines
Mon, Sep 28 - Thu, Oct 1

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American Airlines flights from Seattle to Puerto Rico

Our best American Airlines deals on Seattle to Puerto Rico flight tickets
American Airlines
Aug 24
SEA11:56 pmSeattle/Tacoma Intl
13h 15m
2 stops
SJU4:11 pmSan Juan Luis Munoz Marin Intl
Sep 1
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 41m
2 stops
SEA4:41 pmSeattle/Tacoma Intl
$456
American Airlines
Sep 2
SEA5:10 amSeattle/Tacoma Intl
15h 49m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Sep 7
SJU7:03 amSan Juan Luis Munoz Marin Intl
18h 53m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
$465
American Airlines
Dec 1
SEA1:04 amSeattle/Tacoma Intl
9h 53m
1 stop
SJU2:57 pmSan Juan Luis Munoz Marin Intl
Dec 9
SJU7:00 amSan Juan Luis Munoz Marin Intl
14h 50m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
$481

Delta flights from Seattle to Puerto Rico

Our best Delta deals on Seattle to Puerto Rico flight tickets
Delta
Sep 23
SEA5:50 pmSeattle/Tacoma Intl
15h 13m
2 stops
SJU12:03 pmSan Juan Luis Munoz Marin Intl
Oct 3
SJU2:59 pmSan Juan Luis Munoz Marin Intl
12h 00m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$460
Delta
Dec 5
SEA9:55 pmSeattle/Tacoma Intl
11h 10m
1 stop
SJU1:05 pmSan Juan Luis Munoz Marin Intl
Dec 12
SJU7:15 amSan Juan Luis Munoz Marin Intl
15h 15m
2 stops
SEA6:30 pmSeattle/Tacoma Intl
$464
Delta
Sep 21
SEA5:50 pmSeattle/Tacoma Intl
16h 57m
2 stops
SJU1:47 pmSan Juan Luis Munoz Marin Intl
Sep 23
SJU2:59 pmSan Juan Luis Munoz Marin Intl
12h 00m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$531

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 July 2, 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

Mon 8/17

7:25 pm-12:20 pm

2 stops13h 55m

San Juan Luis Munoz Marin Intl

Wed 8/26

1:20 pm-11:05 pm

2 stops12h 45m

$436

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 9/25

10:30 pm-1:10 pm

1 stop11h 40m

San Juan Luis Munoz Marin Intl

Mon 9/28

5:30 am-3:00 pm

1 stop12h 30m

$446

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 8/24

11:56 pm-4:11 pm

2 stops13h 15m

San Juan Luis Munoz Marin Intl

Tue 9/1

6:00 am-4:41 pm

2 stops13h 41m

$456

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 9/23

7:15 am-11:48 pm

1 stop13h 33m

San Juan Luis Munoz Marin Intl

Sat 10/3

7:30 am-6:30 pm

1 stop14h 00m

$460

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 12/5

9:55 pm-1:05 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Sat 12/12

7:15 am-6:30 pm

2 stops15h 15m

$464

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

Tue 9/8

7:30 am-6:48 pm

1 stop14h 18m

$465

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 8/18

5:20 am-9:05 pm

2 stops12h 45m

San Juan Luis Munoz Marin Intl

Tue 8/25

10:30 am-8:25 pm

2 stops12h 55m

$466

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 9/21

9:40 pm-1:34 pm

1 stop12h 54m

San Juan Luis Munoz Marin Intl

Thu 9/24

10:30 am-8:42 pm

1 stop13h 12m

$475
Quickest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 8/17

11:59 pm-3:42 pm

1 stop12h 43m

San Juan Luis Munoz Marin Intl

Sun 8/30

7:00 am-2:52 pm

1 stop10h 52m

$478

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Mon 9/28

7:00 am-11:09 pm

1 stop13h 09m

Aguadilla Borinquen

Thu 10/1

12:15 am-10:54 am

1 stop13h 39m

$564

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 $586 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 $490 on momondo.

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

You could potentially save up to 1% 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 09m

Direct flights

None
The fastest flight from Seattle to Puerto Rico takes 10h 09m
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
2,850 reviews
Search Frontier flights
JetBluePriceFrom $327Free CancellationRating
7.1
3,008 reviews
Search JetBlue flights
DeltaPriceFrom $342Free CancellationRating
7.8
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $363Free CancellationRating
7.4
9,925 reviews
Search United Airlines flights
American AirlinesPriceFrom $368Free CancellationRating
7.1
11,768 reviews
Search American Airlines flights
Sun Country AirPriceFrom $454Free CancellationRating
6.8
327 reviews
Search Sun Country Air flights
SouthwestPriceFrom $474Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $587Free CancellationRating
7.9
12,606 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.
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Find better results for your trip to Puerto Rico

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