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$189+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SEA
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Seattle/Tacoma Intl are usually found in October or February, booked 25 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 July 30, 2025.

Round-trip from

$361
(Trip.com)

One-way from

$189
(American Airlines)

Popular in

July

Cheapest in

October

Average price

$693
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. 13% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:29 pmSJU - SEA
1 stop11h 55mJetBlue
Sat 10/411:59 pmSEA - SJU
1 stop13h 58mJetBlue
Deal found 7/30$361
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:58 pmSJU - SEA
2 stops14h 01mDelta
Sun 10/511:40 pmSEA - SJU
2 stops13h 53mDelta
Deal found 7/28$377
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 10/87:00 amSJU - SEA
2 stops15h 27mAmerican Airlines
Sun 10/1912:34 amSEA - SJU
1 stop10h 34mAmerican Airlines
Deal found 7/30$384
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:05 amSJU - SEA
2 stops15h 25mUnited Airlines
Sat 9/2710:54 pmSEA - SJU
1 stop11h 51mUnited Airlines
Deal found 7/28$398
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/275:00 amSJU - SEA
2 stops16h 00mSouthwest
Mon 11/36:35 amSEA - SJU
2 stops14h 00mSouthwest
Deal found 7/29$423
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:59 amSJU - SEA
3 stops27h 43mMultiple Airlines
Sat 10/46:16 pmSEA - SJU
2 stops16h 37mMultiple Airlines
Deal found 7/29$485

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 July 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

Fri 9/26

1:29 pm-10:24 pm

1 stop11h 55m

Seattle/Tacoma Intl

Sat 10/4

11:59 pm-4:57 pm

1 stop13h 58m

$361

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/26

12:58 pm-11:59 pm

2 stops14h 01m

Seattle/Tacoma Intl

Sun 10/5

11:40 pm-4:33 pm

2 stops13h 53m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 10/8

7:00 am-7:27 pm

2 stops15h 27m

Seattle/Tacoma Intl

Mon 10/20

11:20 pm-3:54 pm

2 stops13h 34m

$384

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 9/17

1:05 am-1:30 pm

2 stops15h 25m

Seattle/Tacoma Intl

Sat 9/27

10:54 pm-1:45 pm

1 stop11h 51m

$398

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 10/27

5:00 am-6:00 pm

2 stops16h 00m

Seattle/Tacoma Intl

Mon 11/3

6:35 am-12:35 am

2 stops14h 00m

$423

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/26

11:59 am-12:42 pm

3 stops27h 43m

Seattle/Tacoma Intl

Sat 10/4

6:16 pm-1:53 pm

2 stops16h 37m

$485

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Sat 8/30

6:00 am-12:14 am

1 stop21h 14m

$189

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/26

2:26 pm-11:59 pm

2 stops12h 33m

$194

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/26

8:15 am-7:55 pm

2 stops14h 40m

$226

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 10/9

12:50 pm-10:10 pm

1 stop12h 20m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 14 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 July 25, 2025.

The best time to book flights from San Juan to Seattle is 25 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, January is the cheapest month in which you can book a flight from San Juan to Seattle (average of $238). Flying from San Juan to Seattle in June is currently the most expensive (average of $389). 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 July 30, 2025.

A simple way to save on the total cost of your ticket is to fly from San Juan to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.

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 Saturday evenings 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.

How much does it cost to fly round-trip from San Juan to Seattle?

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 July 30, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,913 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

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

    Our cheapest airline available from San Juan to Seattle is JetBlue. Our recent data shows that you can find tickets from as low as $361 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $377 and $384 round-trip. JetBlue is currently priced 30% 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 American Airlines, which is currently one of the cheapest options available, starting at $189. Delta flights start at $194 while deals on Southwest start at $226 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, January is the cheapest month in which you can book a flight from San Juan to Seattle (average of $238). Flying from San Juan to Seattle in June is currently the most expensive (average of $389). 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
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$179Average$525FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$201Average$389FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$326Average$503FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$338Average$548FlexibilityNo cancel feeOn-time71%
DeltaCheapest$445Average$619FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$555Average$661FlexibilityNo cancel feeOn-time63%

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