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$161+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SEA
May 3 — May 101
Sat 5/3
Sat 5/10
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 September, 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 April 28, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$409
(eDestinos)

One-way from

$161
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$516
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. 16% potential increase in price ($106 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 April 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 April 28, 2025.

This eDestinos deal was found by Cheapflights users on 4/28. 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.
Wed 5/141:33 amSJU - SEA
2 stops25h 37mSpirit Airlines
Fri 5/233:20 pmSEA - SJU
2 stops24h 47mSpirit Airlines
Deal found 4/28$409
This Delta deal was found by Cheapflights users on 4/28. 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 9/1912:55 pmSJU - SEA
2 stops14h 14mDelta
Sat 9/275:50 pmSEA - SJU
2 stops16h 33mDelta
Deal found 4/28$427
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 9/63:55 pmSJU - SEA
1 stop9h 55mAmerican Airlines
Sat 9/133:50 pmSEA - SJU
1 stop19h 29mAmerican Airlines
Deal found 4/28$428
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 8/142:05 amSJU - SEA
1 stop11h 17mUnited Airlines
Fri 8/227:00 pmSEA - SJU
2 stops14h 34mUnited Airlines
Deal found 4/28$436
This JetBlue deal was found by Cheapflights users on 4/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:30 amSJU - SEA
1 stop13h 42mJetBlue
Mon 9/2211:45 pmSEA - SJU
1 stop12h 08mJetBlue
Deal found 4/28$438
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/141:33 amSJU - SEA
2 stops25h 37mMultiple Airlines
Fri 5/2311:59 pmSEA - SJU
1 stop10h 48mMultiple Airlines
Deal found 4/28$462
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/152:45 pmSJU - SEA
2 stops13h 30mSouthwest
Sat 8/210:55 pmSEA - SJU
1 stop12h 30mSouthwest
Deal found 4/28$490

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 April 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

Wed 5/14

1:33 am-12:10 am

2 stops25h 37m

Seattle/Tacoma Intl

Fri 5/23

3:20 pm-7:07 pm

2 stops24h 47m

$409

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 9/19

12:55 pm-12:09 am

2 stops14h 14m

Seattle/Tacoma Intl

Sat 9/27

5:50 pm-1:23 pm

2 stops16h 33m

$427

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Sat 9/6

3:55 pm-10:50 pm

1 stop9h 55m

Seattle/Tacoma Intl

Mon 9/15

11:00 pm-12:45 pm

1 stop10h 45m

$428

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 8/14

2:05 am-10:22 am

1 stop11h 17m

Seattle/Tacoma Intl

Fri 8/22

7:00 pm-12:34 pm

2 stops14h 34m

$436

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 9/17

11:30 am-10:12 pm

1 stop13h 42m

Seattle/Tacoma Intl

Mon 9/22

11:45 pm-2:53 pm

1 stop12h 08m

$438

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 5/14

1:33 am-12:10 am

2 stops25h 37m

Seattle/Tacoma Intl

Fri 5/23

11:59 pm-1:47 pm

1 stop10h 48m

$462

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 7/15

2:45 pm-1:15 am

2 stops13h 30m

Seattle/Tacoma Intl

Sat 8/2

10:55 pm-2:25 pm

1 stop12h 30m

$490

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 5/13

9:30 pm-11:49 pm

2 stops29h 19m

$161

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Sat 6/7

12:36 pm-12:10 am

2 stops14h 34m

$176

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 6/16

12:55 pm-9:53 pm

1 stop11h 58m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 17 results
1
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Seattle flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 25, 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 $405). 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 April 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 April 28, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,292 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
JetBlue
7.3
Good
2,922 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $409 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $427 and $428 round-trip. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Seattle for 22% 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 Frontier, with whom users have recently found tickets for as low as $161. However, be on the lookout for offers from Spirit Airlines and JetBlue, 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 $405). 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
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Aberdeen
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

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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 April 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$143Average$420FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$235Average$413FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$324Average$533FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$332Average$561FlexibilityNo cancel feeOn-time71%
DeltaCheapest$452Average$609FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$589Average$661FlexibilityNo cancel feeOn-time63%

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