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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Seattle from $106

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Seattle departing on 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:15 am - 11:53 amSJU-SEA
30h 38m2 stops
Multiple Airlines Logo
9:45 am - 12:55 amSEA-SJU
11h 10m1 stop
$344Multiple Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
Multiple Airlines Logo
6:00 am - 10:06 amSJU-SEA
32h 06m2 stops
Multiple Airlines Logo
9:45 am - 12:55 amSEA-SJU
11h 10m1 stop
$355Multiple Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
American Airlines Logo
8:00 am - 7:44 pmSJU-SEA
15h 44m1 stop
American Airlines Logo
6:19 am - 8:48 pmSEA-SJU
10h 29m1 stop
$363American Airlines
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Thu, Nov 13 - Tue, Nov 18
American Airlines Logo
6:25 am - 9:59 pmSJU-SEA
19h 34m1 stop
American Airlines Logo
10:07 pm - 5:03 pmSEA-SJU
14h 56m1 stop
$371American Airlines
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Wed, Dec 3 - Mon, Dec 8
American Airlines Logo
2:05 pm - 11:18 pmSJU-SEA
13h 13m2 stops
American Airlines Logo
6:19 am - 8:48 pmSEA-SJU
10h 29m1 stop
$406American Airlines
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Thu, Nov 13 - Tue, Nov 18
United Airlines Logo
2:05 am - 12:34 pmSJU-SEA
14h 29m1 stop
United Airlines Logo
8:10 am - 10:22 pmSEA-SJU
10h 12m1 stop
$439United Airlines
Find Deal
Wed, Nov 19 - Thu, Dec 4
United Airlines Logo
2:05 am - 1:54 pmSJU-SEA
15h 49m2 stops
United Airlines Logo
5:05 am - 12:36 amSEA-SJU
15h 31m2 stops
$453United Airlines
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Wed, Nov 12 - Tue, Nov 18
Southwest Logo
3:30 pm - 12:30 amSJU-SEA
13h 00m2 stops
Southwest Logo
6:35 am - 10:05 pmSEA-SJU
11h 30m2 stops
$486Southwest
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Fri, Nov 21 - Thu, Dec 11
Southwest Logo
11:20 am - 10:55 pmSJU-SEA
15h 35m2 stops
Southwest Logo
6:45 am - 1:25 amSEA-SJU
14h 40m2 stops
$517Southwest
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Tue, Nov 18 - Tue, Nov 25
Delta Logo
7:00 am - 2:38 pmSJU-SEA
11h 38m1 stop
Delta Logo
7:12 pm - 12:46 pmSEA-SJU
13h 34m2 stops
$523Delta
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Mon, Nov 3 - Mon, Nov 17

United Airlines flights from San Juan Luis Munoz Marin Intl Airport to Seattle

Our best United Airlines deals on San Juan Luis Munoz Marin Intl Airport to Seattle flight tickets
United Airlines
Nov 19
SJU2:05 amSan Juan Luis Munoz Marin Intl
14h 29m
1 stop
SEA12:34 pmSeattle/Tacoma Intl
Dec 4
SEA8:10 amSeattle/Tacoma Intl
10h 12m
1 stop
SJU10:22 pmSan Juan Luis Munoz Marin Intl
$439
Find similar
United Airlines
Nov 12
SJU2:05 amSan Juan Luis Munoz Marin Intl
15h 49m
2 stops
SEA1:54 pmSeattle/Tacoma Intl
Nov 18
SEA5:05 amSeattle/Tacoma Intl
15h 31m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
$453
Find similar
United Airlines
Nov 19
SJU2:05 amSan Juan Luis Munoz Marin Intl
15h 49m
2 stops
SEA1:54 pmSeattle/Tacoma Intl
Dec 4
SEA8:10 amSeattle/Tacoma Intl
10h 12m
1 stop
SJU10:22 pmSan Juan Luis Munoz Marin Intl
$463
Find similar

American Airlines flights from San Juan Luis Munoz Marin Intl Airport to Seattle

Our best American Airlines deals on San Juan Luis Munoz Marin Intl Airport to Seattle flight tickets
American Airlines
Nov 13
SJU8:00 amSan Juan Luis Munoz Marin Intl
15h 44m
1 stop
SEA7:44 pmSeattle/Tacoma Intl
Nov 18
SEA6:19 amSeattle/Tacoma Intl
10h 29m
1 stop
SJU8:48 pmSan Juan Luis Munoz Marin Intl
$363
Find similar
American Airlines
Dec 3
SJU6:25 amSan Juan Luis Munoz Marin Intl
19h 34m
1 stop
SEA9:59 pmSeattle/Tacoma Intl
Dec 8
SEA10:07 pmSeattle/Tacoma Intl
14h 56m
1 stop
SJU5:03 pmSan Juan Luis Munoz Marin Intl
$371
Find similar
American Airlines
Nov 13
SJU2:05 pmSan Juan Luis Munoz Marin Intl
13h 13m
2 stops
SEA11:18 pmSeattle/Tacoma Intl
Nov 18
SEA6:19 amSeattle/Tacoma Intl
10h 29m
1 stop
SJU8:48 pmSan Juan Luis Munoz Marin Intl
$406
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated October 23, 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

Fly to

Route

Depart

Return

Price

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 12/5

9:15 am-11:53 am

2 stops30h 38m

Seattle/Tacoma Intl

Fri 12/12

9:45 am-12:55 am

1 stop11h 10m

$344

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 12/3

6:00 am-10:06 am

2 stops32h 06m

Seattle/Tacoma Intl

Mon 12/8

9:45 am-12:55 am

1 stop11h 10m

$355

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 11/13

8:00 am-7:44 pm

1 stop15h 44m

Seattle/Tacoma Intl

Tue 11/18

6:19 am-8:48 pm

1 stop10h 29m

$363

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 12/3

6:25 am-9:59 pm

1 stop19h 34m

Seattle/Tacoma Intl

Mon 12/8

10:07 pm-5:03 pm

1 stop14h 56m

$371

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 11/13

2:05 pm-11:18 pm

2 stops13h 13m

Seattle/Tacoma Intl

Tue 11/18

6:19 am-8:48 pm

1 stop10h 29m

$406

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/19

2:05 am-12:34 pm

1 stop14h 29m

Seattle/Tacoma Intl

Thu 12/4

8:10 am-10:22 pm

1 stop10h 12m

$439

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/12

2:05 am-1:54 pm

2 stops15h 49m

Seattle/Tacoma Intl

Tue 11/18

5:05 am-12:36 am

2 stops15h 31m

$453

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 11/21

3:30 pm-12:30 am

2 stops13h 00m

Seattle/Tacoma Intl

Thu 12/11

6:35 am-10:05 pm

2 stops11h 30m

$486

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 11/18

11:20 am-10:55 pm

2 stops15h 35m

Seattle/Tacoma Intl

Tue 11/25

6:45 am-1:25 am

2 stops14h 40m

$517

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 11/3

7:00 am-2:38 pm

1 stop11h 38m

Seattle/Tacoma Intl

Mon 11/17

7:12 pm-12:46 pm

2 stops13h 34m

$523

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from San Juan Luis Munoz Marin Intl Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $436. If you don’t want to visit Seattle in October, then you should wait until February to fly from San Juan Luis Munoz Marin Intl Airport, when ticket prices are also cheap, with an average price of $437.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from San Juan Luis Munoz Marin Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $462. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from San Juan Luis Munoz Marin Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $788.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from San Juan Luis Munoz Marin Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $453 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $589. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $527 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from San Juan Luis Munoz Marin Intl Airport for as low as $443 on momondo.

Can stopping save me money on San Juan Luis Munoz Marin Intl Airport to Seattle flights?

You could potentially save up to 1% on your flight if you consider stops on a San Juan Luis Munoz Marin Intl Airport to Seattle flight.

How have San Juan Luis Munoz Marin Intl Airport to Seattle flight prices changed over time?

As of October 2025, prices for San Juan Luis Munoz Marin Intl Airport to Seattle flights are approximately 16% more expensive when compared to flights at the same time last year.

When to book flights from San Juan Luis Munoz Marin Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from San Juan Luis Munoz Marin Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Juan Luis Munoz Marin Intl Airport to Seattle (SJU to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan Luis Munoz Marin Intl Airport to Seattle

Direct flights

None
There are no direct flights from San Juan Luis Munoz Marin Intl Airport to Seattle. There are no popular flight routes from San Juan Luis Munoz Marin Intl Airport to Seattle.
Search flight deals

  • How far is San Juan Luis Munoz Marin Intl to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 3726.9 mi away from San Juan Luis Munoz Marin Intl. 10h 30m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Juan Luis Munoz Marin Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from San Juan Luis Munoz Marin Intl Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from San Juan Luis Munoz Marin Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from San Juan Luis Munoz Marin Intl Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan Luis Munoz Marin Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from San Juan Luis Munoz Marin Intl Airport to Seattle?

  • What is the most popular airline from San Juan Luis Munoz Marin Intl Airport to Seattle?

Best airlines flying from San Juan Luis Munoz Marin Intl Airport to Seattle

Compare and see reviews for airlines that fly from San Juan Luis Munoz Marin Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $241Free CancellationRating
6.3
8,098 reviews
Search Spirit Airlines flights
JetBluePriceFrom $304Free CancellationRating
7.2
2,908 reviews
Search JetBlue flights
United AirlinesPriceFrom $355Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights
American AirlinesPriceFrom $363Free CancellationRating
7.2
11,028 reviews
Search American Airlines flights
DeltaPriceFrom $445Free CancellationRating
7.9
7,981 reviews
Search Delta flights
SouthwestPriceFrom $555Free CancellationRating
8.0
4,237 reviews
Search Southwest flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
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Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Tukwila
Lakewood
Federal Way
Kirkland
Fife
Redmond
Cle Elum
Centralia
Shoreline
Westport

Why use momondo?

Why should I use momondo to find a flight deal from San Juan to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Juan to Seattle for you.

Can I find flights from San Juan to Seattle with flexible booking policies on momondo?

Flights from San Juan to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Juan to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from San Juan.

I’m not ready to book a flight from San Juan to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from San Juan and alert you when they change.

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