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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Seattle from $131

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 1/28. 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.
Delta Logo
2:16 pm - 12:09 am
SJU
-
SEA
13h 53m2 stops
Delta Logo
7:10 am - 11:56 pm
SEA
-
SJU
12h 46m1 stop
$363Delta
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
6:00 am - 3:34 pm
SJU
-
SEA
13h 34m2 stops
American Airlines Logo
8:35 am - 11:59 pm
SEA
-
SJU
11h 24m2 stops
$370American Airlines
Wed, Feb 4 - Sun, Feb 8
Multiple Airlines Logo
4:22 pm - 11:19 am
SJU
-
SEA
46h 57m2 stops
Multiple Airlines Logo
11:59 am - 2:53 am
SEA
-
SJU
34h 54m2 stops
$371Multiple Airlines
Fri, Feb 6 - Fri, Feb 20
American Airlines Logo
7:00 am - 4:02 pm
SJU
-
SEA
13h 02m2 stops
American Airlines Logo
5:39 am - 11:32 pm
SEA
-
SJU
13h 53m1 stop
$394American Airlines
Tue, Feb 24 - Thu, Mar 5
United Airlines Logo
4:55 pm - 12:45 am
SJU
-
SEA
10h 50m1 stop
United Airlines Logo
10:10 pm - 12:34 pm
SEA
-
SJU
11h 24m1 stop
$398United Airlines
Fri, May 29 - Mon, Jun 8
Multiple Airlines Logo
8:00 am - 11:19 am
SJU
-
SEA
55h 19m3 stops
Multiple Airlines Logo
10:00 am - 12:57 pm
SEA
-
SJU
46h 57m2 stops
$400Multiple Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
11:45 am - 8:46 pm
SJU
-
SEA
12h 01m1 stop
American Airlines Logo
11:33 pm - 1:52 pm
SEA
-
SJU
11h 19m1 stop
$401American Airlines
Thu, Apr 23 - Sat, May 2
United Airlines Logo
1:40 pm - 12:33 am
SJU
-
SEA
13h 53m2 stops
United Airlines Logo
11:20 pm - 12:34 pm
SEA
-
SJU
10h 14m1 stop
$411United Airlines
Fri, May 29 - Mon, Jun 8
American Airlines Logo
1:45 pm - 9:46 pm
SJU
-
SEA
11h 01m1 stop
American Airlines Logo
11:33 pm - 12:25 pm
SEA
-
SJU
9h 52m1 stop
$429American Airlines
Fri, May 8 - Mon, May 18
American Airlines Logo
2:10 am - 9:17 am
SJU
-
SEA
10h 07m1 stop
American Airlines Logo
11:23 pm - 12:20 pm
SEA
-
SJU
9h 57m1 stop
$433American Airlines
Wed, May 27 - Fri, Jun 5

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
May 29
SJU4:55 pmSan Juan Luis Munoz Marin Intl
10h 50m
1 stop
SEA12:45 amSeattle/Tacoma Intl
Jun 8
SEA10:10 pmSeattle/Tacoma Intl
11h 24m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
$398
Find similar
United Airlines
May 29
SJU1:40 pmSan Juan Luis Munoz Marin Intl
13h 53m
2 stops
SEA12:33 amSeattle/Tacoma Intl
Jun 8
SEA11:20 pmSeattle/Tacoma Intl
10h 14m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
$411
Find similar
United Airlines
Jan 15
SJU2:25 pmSan Juan Luis Munoz Marin Intl
10h 50m
1 stop
SEA9:15 pmSeattle/Tacoma Intl
Jan 18
SEA5:00 amSeattle/Tacoma Intl
9h 25m
1 stop
SJU6:25 pmSan Juan Luis Munoz Marin Intl
$453
Find similar

Delta flights from San Juan Luis Munoz Marin Intl Airport to Seattle

Our best Delta deals on San Juan Luis Munoz Marin Intl Airport to Seattle flight tickets
Delta
Feb 24
SJU2:16 pmSan Juan Luis Munoz Marin Intl
13h 53m
2 stops
SEA12:09 amSeattle/Tacoma Intl
Mar 3
SEA7:10 amSeattle/Tacoma Intl
12h 46m
1 stop
SJU11:56 pmSan Juan Luis Munoz Marin Intl
$363
Find similar
Delta
Apr 24
SJU1:50 pmSan Juan Luis Munoz Marin Intl
13h 11m
2 stops
SEA12:01 amSeattle/Tacoma Intl
May 2
SEA6:05 amSeattle/Tacoma Intl
14h 38m
2 stops
SJU11:43 pmSan Juan Luis Munoz Marin Intl
$444
Find similar
Delta
May 8
SJU2:20 pmSan Juan Luis Munoz Marin Intl
10h 45m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
May 18
SEA11:59 pmSeattle/Tacoma Intl
13h 24m
2 stops
SJU4:23 pmSan Juan Luis Munoz Marin Intl
$495
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 December 17, 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

Tue 2/24

2:16 pm-12:09 am

2 stops13h 53m

Seattle/Tacoma Intl

Tue 3/3

7:10 am-11:56 pm

1 stop12h 46m

$363

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 2/4

6:00 am-3:34 pm

2 stops13h 34m

Seattle/Tacoma Intl

Sun 2/8

8:35 am-11:59 pm

2 stops11h 24m

$370

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 2/6

4:22 pm-11:19 am

2 stops46h 57m

Seattle/Tacoma Intl

Fri 2/20

11:59 am-2:53 am

2 stops34h 54m

$371

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 2/24

7:00 am-4:02 pm

2 stops13h 02m

Seattle/Tacoma Intl

Thu 3/5

5:39 am-11:32 pm

1 stop13h 53m

$394

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 5/29

4:55 pm-12:45 am

1 stop10h 50m

Seattle/Tacoma Intl

Mon 6/8

10:10 pm-12:34 pm

1 stop11h 24m

$398

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 2/4

8:00 am-11:19 am

3 stops55h 19m

Seattle/Tacoma Intl

Sun 2/8

10:00 am-12:57 pm

2 stops46h 57m

$400

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 4/23

11:45 am-8:46 pm

1 stop12h 01m

Seattle/Tacoma Intl

Sat 5/2

11:33 pm-1:52 pm

1 stop11h 19m

$401

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 5/29

1:40 pm-12:33 am

2 stops13h 53m

Seattle/Tacoma Intl

Mon 6/8

11:20 pm-12:34 pm

1 stop10h 14m

$411

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 5/8

1:45 pm-9:46 pm

1 stop11h 01m

Seattle/Tacoma Intl

Mon 5/18

11:33 pm-12:25 pm

1 stop9h 52m

$429

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 5/27

2:10 am-9:17 am

1 stop10h 07m

Seattle/Tacoma Intl

Fri 6/5

11:23 pm-12:20 pm

1 stop9h 57m

$433

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 $535 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 $465 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 December 2025, prices for San Juan Luis Munoz Marin Intl Airport to Seattle flights are approximately 2% 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

Fastest flight time

10h 50m

Direct flights

None
The fastest flight from San Juan Luis Munoz Marin Intl Airport to Seattle takes 10h 50m
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 50m 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
8,190 reviews
Search Spirit Airlines flights
JetBluePriceFrom $266Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights
American AirlinesPriceFrom $367Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $376Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
DeltaPriceFrom $377Free CancellationRating
7.9
8,005 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
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Puyallup
Redmond
Tukwila
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Fife
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Shoreline

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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