Seattle

$188+ Cheap flights from Luis Munoz Marin Intl (SJU) 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SEA
Aug 21 — Aug 281
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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl 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 Luis Munoz Marin Intl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) 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 August 16, 2025.

Round-trip from

$362
(Priceline)

One-way from

$188
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$513
From San Juan Luis Munoz Marin Intl to Seattle/Tacoma Intl
One-way flight from San Juan Luis Munoz Marin Intl to Seattle/Tacoma Intl
Highest demand for flights based on searches. 13% potential increase in price ($83 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Luis Munoz Marin Intl to Seattle

Cheapest flights from Luis Munoz Marin Intl to Seattle
Explore the most affordable flight options available from Luis Munoz Marin Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This Trip.com deal was found by Cheapflights users on 8/14. 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.
Thu 10/21:29 pmSJU - SEA
1 stop11h 55mJetBlue
Mon 10/1311:40 pmSEA - SJU
1 stop14h 02mJetBlue
Deal found 8/14$365
This Delta deal was found by Cheapflights users on 8/14. 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.
Wed 11/57:15 amSJU - SEA
1 stop10h 46mDelta
Tue 11/116:00 amSEA - SJU
1 stop13h 17mDelta
Deal found 8/14$377
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:25 pmSJU - SEA
1 stop11h 59mJetBlue
Sat 10/411:59 pmSEA - SJU
1 stop11h 55mJetBlue
Deal found 8/15$378
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 9/51:40 pmSJU - SEA
1 stop13h 19mAmerican Airlines
Sat 9/206:11 amSEA - SJU
2 stops14h 26mAmerican Airlines
Deal found 8/14$380
This American Airlines deal was found by Cheapflights users on 8/15. 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 stops12h 54mAmerican Airlines
Sun 10/1912:34 amSEA - SJU
1 stop10h 34mAmerican Airlines
Deal found 8/15$385
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 10/46:10 amSJU - SEA
1 stop20h 49mAmerican Airlines
Mon 10/1312:34 amSEA - SJU
1 stop10h 34mAmerican Airlines
Deal found 8/14$386
This Southwest deal was found by Cheapflights users on 8/14. 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.
Wed 11/511:20 amSJU - SEA
2 stops15h 35mSouthwest
Tue 11/116:35 amSEA - SJU
2 stops11h 30mSouthwest
Deal found 8/14$394
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Thu 10/301:05 amSJU - SEA
1 stop13h 06mUnited Airlines
Tue 11/45:30 amSEA - SJU
2 stops12h 52mUnited Airlines
Deal found 8/15$399
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/241:05 amSJU - SEA
1 stop12h 42mUnited Airlines
Sat 10/410:54 pmSEA - SJU
1 stop11h 51mUnited Airlines
Deal found 8/14$404
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Sat 9/612:01 pmSJU - SEA
1 stop14h 58mAmerican Airlines
Sat 9/138:51 pmSEA - SJU
1 stop15h 02mAmerican Airlines
Deal found 8/15$411
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/93:03 amSJU - SEA
1 stop22h 07mJetBlue
Sat 10/1811:40 pmSEA - SJU
1 stop18h 44mJetBlue
Deal found 8/14$413
This Delta deal was found by Cheapflights users on 8/15. 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.
Mon 11/37:15 amSJU - SEA
2 stops13h 17mDelta
Mon 11/176:00 amSEA - SJU
1 stop13h 17mDelta
Deal found 8/15$417

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl 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 August 16, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Seattle that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Seattle

Route

Depart

Return

Price

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 10/2

1:29 pm-10:24 pm

1 stop11h 55m

Seattle/Tacoma Intl

Mon 10/13

11:40 pm-4:42 pm

1 stop14h 02m

$365

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/5

7:15 am-4:54 pm

2 stops13h 39m

Seattle/Tacoma Intl

Tue 11/11

6:00 am-11:17 pm

1 stop13h 17m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 11/13

6:44 am-7:15 pm

1 stop16h 31m

Seattle/Tacoma Intl

Tue 11/18

10:08 pm-1:41 pm

1 stop11h 33m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 10/31

1:25 pm-9:13 pm

1 stop10h 48m

Seattle/Tacoma Intl

Tue 11/4

7:28 pm-1:17 pm

2 stops13h 49m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/19

1:40 pm-11:59 pm

1 stop13h 19m

Seattle/Tacoma Intl

Mon 9/22

8:18 pm-2:53 pm

1 stop15h 35m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 11/11

1:50 pm-12:14 am

1 stop14h 24m

Seattle/Tacoma Intl

Mon 11/17

11:55 pm-5:15 pm

2 stops13h 20m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/5

2:41 pm-11:24 pm

2 stops12h 43m

Seattle/Tacoma Intl

Tue 11/11

6:19 am-8:48 pm

1 stop10h 29m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 10/2

6:10 am-4:57 pm

2 stops13h 47m

Seattle/Tacoma Intl

Mon 10/13

11:20 pm-2:25 pm

1 stop12h 05m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 9/24

3:55 pm-11:59 pm

1 stop11h 04m

Seattle/Tacoma Intl

Wed 10/8

8:49 pm-3:54 pm

1 stop16h 05m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 9/18

10:57 am-12:30 am

2 stops40h 33m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 17 results
1
2

Best time to book a flight from Luis Munoz Marin Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Seattle

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Seattle. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from San Juan Luis Munoz Marin Intl Airport to Seattle, you should look to book at least 25 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Seattle (average of $238). Flying from San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl 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 August 16, 2025.

A simple way to save on the total cost of your ticket is to fly from San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport to Seattle?

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

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport 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.

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 August 16, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from San Juan Luis Munoz Marin Intl Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good
8.0
Very good

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl?

    For a flight from San Juan Luis Munoz Marin Intl to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 inbound flights from San Juan Luis Munoz Marin Intl per day. 6 airlines have flights to Seattle/Tacoma Intl from San Juan Luis Munoz Marin Intl on a regular basis.

  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Seattle round-trip?

    Our cheapest airline available from San Juan Luis Munoz Marin Intl Airport to Seattle is JetBlue. Our recent data shows that you can find tickets from as low as $179 on this airline. Additional options worth looking into are Spirit Airlines and United Airlines, starting at $235 and $326 round-trip. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Seattle for 66% less than the average price by searching for these airlines.

  • Can I find deals for flights from Luis Munoz Marin Intl to Seattle that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to Seattle?

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

  • Can I find deals for business class flights from Luis Munoz Marin Intl to Seattle?

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Seattle (average of $238). Flying from San Juan Luis Munoz Marin Intl Airport 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?

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Alternative routes for Luis Munoz Marin Intl to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Luis Munoz Marin Intl to Seattle

Discover the top 6 airlines that operate flights from Luis Munoz Marin Intl 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$179Average$505FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$235Average$401FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$326Average$507FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$336Average$551FlexibilityNo cancel feeOn-time71%
DeltaCheapest$445Average$622FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$555Average$661FlexibilityNo cancel feeOn-time63%

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