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$145+ 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SEA
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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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 June 30, 2025.

Round-trip from

$367
(Booking.com)

One-way from

$145
(eDestinos)

Popular in

July

Cheapest in

October

Average price

$632
From San Juan Luis Munoz Marin Intl to Seattle/Tacoma Intl
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One-way flight from San Juan Luis Munoz Marin Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($87 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 June 2025
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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 June 30, 2025.

This Booking.com deal was found by Cheapflights users on 6/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/811:59 pmSJU - SEA
2 stops19h 26mSpirit Airlines
Mon 8/115:30 pmSEA - SJU
2 stops25h 20mSpirit Airlines
Deal found 6/30$367
This Delta deal was found by Cheapflights users on 6/29. 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 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 11mDelta
Sat 10/45:45 pmSEA - SJU
2 stops15h 03mDelta
Deal found 6/29$377
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Tue 11/412:55 pmSJU - SEA
2 stops12h 20mAmerican Airlines
Tue 11/1110:46 pmSEA - SJU
1 stop18h 04mAmerican Airlines
Deal found 6/30$384
This JetBlue deal was found by Cheapflights users on 6/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1810:35 amSJU - SEA
1 stop12h 23mJetBlue
Sun 8/39:13 pmSEA - SJU
1 stop14h 02mJetBlue
Deal found 6/29$391
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Sat 9/61:25 pmSJU - SEA
1 stop11h 41mUnited Airlines
Mon 9/1511:54 pmSEA - SJU
1 stop11h 50mUnited Airlines
Deal found 6/28$397
This Booking.com deal was found by Cheapflights users on 6/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/81:37 amSJU - SEA
2 stops17h 48mMultiple Airlines
Fri 8/1511:59 pmSEA - SJU
1 stop12h 17mMultiple Airlines
Deal found 6/27$442
This eDestinos deal was found by Cheapflights users on 6/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:15 amSJU - SEA
2 stops40h 28mFrontier
Sun 10/56:12 amSEA - SJU
2 stops28h 49mFrontier
Deal found 6/28$449
This Southwest deal was found by Cheapflights users on 6/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:00 amSJU - SEA
2 stops13h 20mSouthwest
Wed 9/249:10 pmSEA - SJU
2 stops13h 40mSouthwest
Deal found 6/30$451

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 June 30, 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

Fri 8/8

11:59 pm-4:25 pm

2 stops19h 26m

Seattle/Tacoma Intl

Mon 8/11

5:30 pm-9:50 pm

2 stops25h 20m

$367

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/26

12:58 pm-12:09 am

2 stops14h 11m

Seattle/Tacoma Intl

Sat 10/4

5:45 pm-11:48 am

2 stops15h 03m

$377

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 11/4

8:14 am-9:15 pm

1 stop17h 01m

Seattle/Tacoma Intl

Mon 11/10

1:33 am-9:34 pm

1 stop16h 01m

$384

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 7/18

10:35 am-7:58 pm

1 stop12h 23m

Seattle/Tacoma Intl

Wed 7/30

9:13 pm-2:15 pm

1 stop14h 02m

$391

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Sat 9/6

1:25 pm-10:06 pm

1 stop11h 41m

Seattle/Tacoma Intl

Mon 9/15

11:54 pm-2:44 pm

1 stop11h 50m

$397

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 8/8

1:37 am-4:25 pm

2 stops17h 48m

Seattle/Tacoma Intl

Fri 8/15

11:59 pm-3:16 pm

1 stop12h 17m

$442

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/26

7:15 am-8:43 pm

2 stops40h 28m

Seattle/Tacoma Intl

Sun 10/5

6:12 am-2:01 pm

2 stops28h 49m

$449

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 9/17

5:00 am-3:20 pm

2 stops13h 20m

Seattle/Tacoma Intl

Wed 9/24

9:10 pm-1:50 pm

2 stops13h 40m

$451

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 8/8

11:59 pm-4:25 pm

2 stops19h 26m

$145

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/12

6:30 am-9:49 pm

1 stop19h 19m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 15 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 June 27, 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 July is currently the most expensive (average of $391). 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 June 30, 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 June 30, 2025.
See what other customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,278 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,969 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,852 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,920 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,278 reviews

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $367 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $377 and $384 round-trip. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Seattle for 30% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to Seattle one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $145. However, be on the lookout for offers from American Airlines and Southwest, as they are both options that can get you from San Juan Luis Munoz Marin Intl Airport to Seattle for a low price.

  • 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 July is currently the most expensive (average of $391). 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 San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Kirkland
Aberdeen
Renton
Shelton
Silverdale

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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.
Luis Munoz Marin Intl to Portland flights

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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$148Average$425FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$235Average$401FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$326Average$531FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$342Average$554FlexibilityNo cancel feeOn-time71%
DeltaCheapest$452Average$614FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$555Average$649FlexibilityNo cancel feeOn-time63%

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