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$120+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SEA
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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1. Tell us where you want to go
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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Seattle/Tacoma Intl are usually found in September or October, booked 32 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$389
(eDestinos)

One-way from

$120
(Cheapflightsfares)

Popular in

July

Cheapest in

September

Average price

$548
Provider with most accurate pricing for San Juan Luis Munoz Marin Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for San Juan Luis Munoz Marin Intl-Seattle/Tacoma Intl flights.
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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. 17% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This eDestinos deal was found by Cheapflights users on 3/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2612:57 amSJU - SEA
2 stops20h 26mSpirit Airlines
Tue 5/612:30 pmSEA - SJU
2 stops21h 14mSpirit Airlines
Deal found 3/27$389
This Delta deal was found by Cheapflights users on 3/26. 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 4/186:15 amSJU - SEA
1 stop13h 42mDelta
Tue 4/297:30 amSEA - SJU
1 stop12h 45mDelta
Deal found 3/26$392
This United Airlines deal was found by Cheapflights users on 3/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:00 amSJU - SEA
2 stops16h 54mUnited Airlines
Fri 9/511:54 pmSEA - SJU
1 stop11h 50mUnited Airlines
Deal found 3/27$396
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:15 amSJU - SEA
1 stop16h 49mAmerican Airlines
Sat 5/34:27 pmSEA - SJU
1 stop9h 33mAmerican Airlines
Deal found 3/28$401
This JetBlue deal was found by Cheapflights users on 3/26. 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.
Tue 4/1512:16 pmSJU - SEA
1 stop13h 11mJetBlue
Fri 5/211:35 amSEA - SJU
1 stop10h 54mJetBlue
Deal found 3/26$429
This Sun Country Air deal was found by Cheapflights users on 3/27. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/91:45 pmSJU - SEA
1 stop24h 07mSun Country Air
Fri 4/186:27 pmSEA - SJU
1 stop17h 38mSun Country Air
Deal found 3/27$496
This Southwest deal was found by Cheapflights users on 3/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/311:25 amSJU - SEA
2 stops13h 00mSouthwest
Mon 7/149:10 pmSEA - SJU
1 stop12h 25mSouthwest
Deal found 3/27$506
This Expedia deal was found by Cheapflights users on 3/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1712:54 amSJU - SEA
2 stops21h 57mMultiple Airlines
Tue 4/2911:04 amSEA - SJU
1 stop14h 56mMultiple Airlines
Deal found 3/27$518
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:30 amSJU - SEA
2 stops32h 09mAlaska Airlines
Fri 8/296:36 pmSEA - SJU
2 stops25h 24mAlaska Airlines
Deal found 3/27$540

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 March 28, 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

Sat 4/26

12:57 am-6:23 pm

2 stops20h 26m

Seattle/Tacoma Intl

Tue 5/6

12:30 pm-12:44 pm

2 stops21h 14m

$389

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 4/18

6:15 am-4:57 pm

1 stop13h 42m

Seattle/Tacoma Intl

Tue 4/29

7:30 am-11:15 pm

1 stop12h 45m

$392

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 8/27

7:00 am-8:54 pm

2 stops16h 54m

Seattle/Tacoma Intl

Sat 9/20

10:58 pm-12:34 pm

1 stop10h 36m

$396

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 4/24

7:15 am-9:04 pm

1 stop16h 49m

Seattle/Tacoma Intl

Sat 5/3

4:27 pm-5:00 am

1 stop9h 33m

$401

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 4/15

12:16 pm-10:27 pm

1 stop13h 11m

Seattle/Tacoma Intl

Thu 5/1

11:35 am-1:29 am

1 stop10h 54m

$429

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 4/9

1:45 pm-10:52 am

1 stop24h 07m

Seattle/Tacoma Intl

Fri 4/18

6:27 pm-3:05 pm

1 stop17h 38m

$496

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 7/3

11:25 am-9:25 pm

2 stops13h 00m

Seattle/Tacoma Intl

Mon 7/14

9:10 pm-1:00 pm

2 stops12h 50m

$506

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 4/17

12:54 am-7:51 pm

2 stops21h 57m

Seattle/Tacoma Intl

Tue 4/29

11:04 am-5:00 am

1 stop14h 56m

$518

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 8/20

5:30 am-10:39 am

2 stops32h 09m

Seattle/Tacoma Intl

Fri 8/29

6:36 pm-11:00 pm

2 stops25h 24m

$540

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 4/29

12:54 am-11:35 am

2 stops13h 41m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 18 results
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Compare providers for flights from Luis Munoz Marin Intl to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Luis Munoz Marin Intl to Seattle in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Juan Luis Munoz Marin Intl Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 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 32 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 $411). 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 March 28, 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 March 28, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from San Juan to Seattle. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 $389 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $392 and $396 round-trip. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Seattle for 27% 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 $120. However, be on the lookout for offers from American Airlines and Delta, 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 $411). 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
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$143Average$431FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$235Average$425FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$296Average$540FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$332Average$546FlexibilityNo cancel feeOn-time71%
DeltaCheapest$454Average$601FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$589Average$661FlexibilityNo cancel feeOn-time63%
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