Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Puerto Rico from $131

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 5/13. 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

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
10:30 pm - 2:30 pm
SEA
-
SJU
13h 00m
1 stop
Southwest Logo
6:35 am - 4:40 pm
SJU
-
SEA
13h 05m
2 stops
$454Southwest
Wed, Aug 12 - Sun, Aug 16
United Airlines Logo
5:02 am - 5:38 pm
SEA
-
SJU
9h 36m
1 stop
United Airlines Logo
7:20 am - 3:42 pm
SJU
-
SEA
11h 22m
1 stop
$456United Airlines
Sat, May 9 - Thu, May 14
Southwest Logo
11:00 pm - 2:00 pm
SEA
-
SJU
12h 00m
2 stops
Southwest Logo
6:25 am - 5:00 pm
SJU
-
SEA
13h 35m
2 stops
$474Southwest
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
11:53 pm - 2:44 pm
SEA
-
SJU
11h 51m
1 stop
United Airlines Logo
3:56 pm - 11:59 pm
SJU
-
SEA
11h 03m
1 stop
$485United Airlines
Sat, May 9 - Wed, May 13
American Airlines Logo
8:35 pm - 9:43 am
SEA
-
SJU
10h 08m
1 stop
American Airlines Logo
6:00 am - 4:41 pm
SJU
-
SEA
13h 41m
2 stops
$494American Airlines
Tue, Aug 18 - Tue, Aug 25
American Airlines Logo
10:35 pm - 12:57 pm
SEA
-
SJU
11h 22m
1 stop
American Airlines Logo
7:00 am - 10:59 pm
SJU
-
SEA
18h 59m
1 stop
$499American Airlines
Wed, May 27 - Sat, Jun 6
Multiple Airlines Logo
10:20 pm - 3:55 pm
SEA
-
SJU
38h 35m
2 stops
Multiple Airlines Logo
7:24 pm - 6:35 pm
SJU
-
SEA
50h 11m
3 stops
$506Multiple Airlines
Sat, May 23 - Sat, May 30
JetBlue Logo
11:49 pm - 1:16 pm
SEA
-
SJU
10h 27m
1 stop
JetBlue Logo
9:15 pm - 10:35 am
SJU
-
SEA
16h 20m
1 stop
$508JetBlue
Sat, Jun 6 - Mon, Jun 15
Southwest Logo
7:10 am - 10:00 pm
SEA
-
SJU
11h 50m
2 stops
Southwest Logo
5:00 am - 3:00 pm
SJU
-
SEA
13h 00m
2 stops
$510Southwest
Wed, Aug 12 - Mon, Aug 17
JetBlue Logo
10:28 pm - 4:36 pm
SEA
-
BQN
15h 08m
2 stops
JetBlue Logo
4:45 am - 10:49 pm
BQN
-
SEA
21h 04m
2 stops
$792JetBlue
Mon, Jun 15 - Mon, Jun 22

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

JetBlue flights from Seattle to Puerto Rico

Our best JetBlue deals on Seattle to Puerto Rico flight tickets
JetBlue
Jun 6
SEA11:49 pmSeattle/Tacoma Intl
10h 27m
1 stop
SJU1:16 pmSan Juan Luis Munoz Marin Intl
Jun 15
SJU9:15 pmSan Juan Luis Munoz Marin Intl
16h 20m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$508
JetBlue
May 30
SEA11:39 pmSeattle/Tacoma Intl
12h 55m
1 stop
SJU3:34 pmSan Juan Luis Munoz Marin Intl
Jun 30
SJU7:25 amSan Juan Luis Munoz Marin Intl
16h 43m
1 stop
SEA9:08 pmSeattle/Tacoma Intl
$549
JetBlue
May 23
SEA11:35 amSeattle/Tacoma Intl
31h 07m
1 stop
SJU9:42 pmSan Juan Luis Munoz Marin Intl
May 30
SJU6:30 amSan Juan Luis Munoz Marin Intl
17h 26m
1 stop
SEA8:56 pmSeattle/Tacoma Intl
$620

American Airlines flights from Seattle to Puerto Rico

Our best American Airlines deals on Seattle to Puerto Rico flight tickets
American Airlines
Aug 18
SEA8:35 pmSeattle/Tacoma Intl
10h 08m
1 stop
SJU9:43 amSan Juan Luis Munoz Marin Intl
Aug 25
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 41m
2 stops
SEA4:41 pmSeattle/Tacoma Intl
$494
American Airlines
May 27
SEA10:35 pmSeattle/Tacoma Intl
11h 22m
1 stop
SJU12:57 pmSan Juan Luis Munoz Marin Intl
Jun 6
SJU7:00 amSan Juan Luis Munoz Marin Intl
18h 59m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$499
American Airlines
Sep 3
SEA5:31 pmSeattle/Tacoma Intl
18h 23m
1 stop
SJU2:54 pmSan Juan Luis Munoz Marin Intl
Sep 10
SJU2:05 pmSan Juan Luis Munoz Marin Intl
13h 10m
2 stops
SEA12:15 amSeattle/Tacoma Intl
$519

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 April 26, 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

Wed 8/12

10:30 pm-2:30 pm

1 stop13h 00m

San Juan Luis Munoz Marin Intl

Sun 8/16

6:35 am-4:40 pm

2 stops13h 05m

$454
Quickest round-trip

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/9

5:02 am-5:38 pm

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Thu 5/14

7:20 am-3:42 pm

1 stop11h 22m

$456

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 8/15

11:00 pm-2:00 pm

2 stops12h 00m

San Juan Luis Munoz Marin Intl

Sat 8/22

6:25 am-5:00 pm

2 stops13h 35m

$474

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/9

11:53 pm-2:44 pm

1 stop11h 51m

San Juan Luis Munoz Marin Intl

Wed 5/13

3:56 pm-11:59 pm

1 stop11h 03m

$485

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 8/18

8:35 pm-9:43 am

1 stop10h 08m

San Juan Luis Munoz Marin Intl

Tue 8/25

6:00 am-4:41 pm

2 stops13h 41m

$494

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 5/27

10:35 pm-12:57 pm

1 stop11h 22m

San Juan Luis Munoz Marin Intl

Sat 6/6

7:00 am-10:59 pm

1 stop18h 59m

$499

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/23

10:20 pm-3:55 pm

2 stops38h 35m

San Juan Luis Munoz Marin Intl

Sat 5/30

7:24 pm-6:35 pm

3 stops50h 11m

$506

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 6/6

11:49 pm-1:16 pm

1 stop10h 27m

San Juan Luis Munoz Marin Intl

Mon 6/15

9:15 pm-10:35 am

1 stop16h 20m

$508

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 8/12

7:10 am-10:00 pm

2 stops11h 50m

San Juan Luis Munoz Marin Intl

Mon 8/17

5:00 am-3:00 pm

2 stops13h 00m

$510

SeattleAguadilla

SEA - BQN

SEABQN

Seattle/Tacoma Intl

Mon 6/15

10:28 pm-4:36 pm

2 stops15h 08m

Aguadilla Borinquen

Mon 6/22

4:45 am-10:49 pm

2 stops21h 04m

$792

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 October, then you should wait until September to fly from Seattle, when ticket prices are also cheap, with an average price of $476.

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 $581 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 $497 on momondo.

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

You could potentially save up to 4% 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 27m

Direct flights

None
The fastest flight from Seattle to Puerto Rico takes 10h 27m
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
2,976 reviews
Search Frontier flights
JetBluePriceFrom $282Free CancellationRating
7.1
2,960 reviews
Search JetBlue flights
DeltaPriceFrom $342Free CancellationRating
7.9
8,459 reviews
Search Delta flights
United AirlinesPriceFrom $363Free CancellationRating
7.4
9,659 reviews
Search United Airlines flights
American AirlinesPriceFrom $364Free CancellationRating
7.1
11,673 reviews
Search American Airlines flights
Sun Country AirPriceFrom $454Free CancellationRating
6.8
337 reviews
Search Sun Country Air flights
SouthwestPriceFrom $496Free CancellationRating
8.0
4,325 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $587Free CancellationRating
7.9
12,295 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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 5/26
Tue 6/2
By creating a price alert you accept our terms of use and privacy policy.

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
Flights to San Juanfrom $118
Flights to Aguadillafrom $212
Flights to Poncefrom $194
Flights to Viequesfrom $517
Flights to Culebrafrom $457
Flights to Mayagüezfrom $367