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$169+ Cheap flights from San Juan to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SEA
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Seattle/Tacoma Intl are usually found in February or October, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Juan to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 30, 2025.

Round-trip from

$355
(Frontier)

One-way from

$169
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$438
From San Juan to Seattle/Tacoma Intl
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One-way flight from San Juan to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 12% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Juan to Seattle

Cheapest flights from San Juan to Seattle
Explore the most affordable flight options available from San Juan to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Frontier deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/123:59 amSJU - SEA
2 stops18h 33mFrontier
lun. 11/1711:43 amSEA - SJU
2 stops26h 11mFrontier
Deal found 10/29$355
This Frontier deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/132:11 amSJU - SEA
2 stops14h 02mFrontier
mar. 11/181:37 pmSEA - SJU
2 stops17h 42mFrontier
Deal found 10/30$357
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1810:03 pmSJU - SEA
1 stop17h 27mAmerican Airlines
mar. 1/69:45 pmSEA - SJU
1 stop11h 23mAmerican Airlines
Deal found 10/30$363
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/76:25 amSJU - SEA
1 stop19h 25mAmerican Airlines
lun. 12/812:31 amSEA - SJU
2 stops13h 21mAmerican Airlines
Deal found 10/30$370
This Frontier deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2410:22 pmSJU - SEA
2 stops17h 34mFrontier
vie. 12/53:40 pmSEA - SJU
2 stops19h 54mFrontier
Deal found 10/30$379
This Frontier deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/53:59 amSJU - SEA
2 stops18h 23mFrontier
sáb. 11/1512:58 pmSEA - SJU
2 stops18h 21mFrontier
Deal found 10/29$411
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1810:03 pmSJU - SEA
1 stop17h 27mAmerican Airlines
mié. 1/711:11 pmSEA - SJU
1 stop13h 50mAmerican Airlines
Deal found 10/30$429
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/185:14 pmSJU - SEA
1 stop27h 52mMultiple Airlines
mar. 1/62:36 pmSEA - SJU
2 stops39h 41mMultiple Airlines
Deal found 10/30$431
This Frontier deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/73:59 amSJU - SEA
2 stops18h 33mFrontier
dom. 11/162:22 pmSEA - SJU
2 stops16h 39mFrontier
Deal found 10/29$435
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/222:39 pmSJU - SEA
1 stop11h 25mAmerican Airlines
lun. 1/52:52 pmSEA - SJU
1 stop10h 08mAmerican Airlines
Deal found 10/30$437

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Seattle 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from San Juan to Seattle that are best for you.

Fly from

San Juan

Fly to

Seattle

Route

Depart

Return

Price

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mar. 12/23

9:06 pm-5:18 pm

2 stops24h 12m

Seattle/Tacoma Intl

dom. 12/28

4:11 pm-11:38 pm

1 stop27h 27m

$543

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mar. 11/11

1:57 pm-11:59 pm

1 stop14h 02m

Seattle/Tacoma Intl

vie. 11/14

11:00 pm-2:17 pm

1 stop11h 17m

$591

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

vie. 11/14

3:32 pm-11:59 pm

1 stop12h 27m

Seattle/Tacoma Intl

mar. 11/18

6:00 am-11:13 pm

1 stop13h 13m

$591

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mar. 12/2

4:56 pm-11:26 pm

1 stop10h 30m

Seattle/Tacoma Intl

dom. 12/7

12:31 am-2:44 pm

1 stop10h 13m

$594

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

lun. 12/1

2:05 am-11:16 am

1 stop13h 11m

Seattle/Tacoma Intl

lun. 12/8

7:00 am-9:00 pm

1 stop10h 00m

$613

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

lun. 12/22

9:49 am-11:22 am

1 stop29h 33m

Seattle/Tacoma Intl

sáb. 12/27

7:28 pm-2:39 am

2 stops51h 11m

$621

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

sáb. 11/8

3:36 pm-11:54 pm

1 stop12h 18m

Seattle/Tacoma Intl

dom. 11/16

6:00 am-11:13 pm

1 stop13h 13m

$637

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

sáb. 1/10

11:22 am-9:34 am

2 stops26h 12m

$170

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mié. 11/19

8:30 am-6:52 pm

2 stops14h 22m

$182

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

jue. 11/27

6:05 am-11:56 am

2 stops33h 51m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 16 results
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Best time to book a flight from San Juan to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from San Juan with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Juan to Seattle

How far ahead should I book a flight from San Juan to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Seattle. Price data was last updated on October 24, 2025.

The best time to book flights from San Juan to Seattle is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Juan to Seattle?

Currently, February is the cheapest month in which you can book a flight from San Juan to Seattle (average of $272). Flying from San Juan to Seattle in April is currently the most expensive (average of $382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SJU to SEA?

Find hourly flight availability from San Juan to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

A simple way to save on the total cost of your ticket is to fly from San Juan to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from San Juan to Seattle?

Use this chart to determine the cheapest time to fly round-trip from San Juan to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated octubre 30, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from San Juan to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
JetBlue
7.2
Good
2,906 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Spirit Airlines
6.3
Okay
8,116 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

Related info for your journey

Find useful and relevant information for your journey from San Juan to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from San Juan?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from San Juan to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from San Juan; the airport handles an average of 0 inbound flights from San Juan per day. You should also have plenty of airline options to choose from since 6 airlines have flights to the Seattle airport from San Juan. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How long is the flight from San Juan to Seattle?

    Airlines like Delta fly from San Juan to Seattle in about 14h 02m. The time it takes to get you to your destination can typically vary by up to . San Juan and Seattle are separated by a distance of 3723 mi.

  • What are the cheapest airlines flying from San Juan to Seattle round-trip?

    Our cheapest airline available from San Juan to Seattle is Spirit Airlines. Our recent data shows that you can find tickets from as low as $241 on this airline. Additional options worth looking into are JetBlue and United Airlines, starting at $304 and $357 round-trip. Spirit Airlines is currently priced 54% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from San Juan to Seattle one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $170. United Airlines flights start at $182 while deals on Sun Country Air start at $217 one-way.

  • Can I find deals for flights from San Juan to Seattle that include hotel bookings?

    Yes. In addition to deals on San Juan to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Seattle.

  • Can I find deals for business class flights from San Juan to Seattle?

    Yes. Cheapflights offers flight deals from San Juan to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan to Seattle?

    Currently, February is the cheapest month in which you can book a flight from San Juan to Seattle (average of $272). Flying from San Juan to Seattle in April is currently the most expensive (average of $382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
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Alternative routes for San Juan to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Seattle flights
Luis Munoz Marin Intl to Portland flights
Aguadilla to Portland flights
Aguadilla to Seattle flights

Top 6 airlines flying from San Juan to Seattle

Discover the top 6 airlines that operate flights from San Juan to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$241Average$401FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$304Average$518FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$357Average$514FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$363Average$570FlexibilityNo cancel feeOn-time71%
DeltaCheapest$445Average$664FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$555Average$661FlexibilityNo cancel feeOn-time63%

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