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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Seattle from $166

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 10/2. 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 (SJU-SEA)

Cheap round-trip flights

JetBlue Logo
1:29 pm - 10:20 pmSJU-SEA
11h 51m1 stop
JetBlue Logo
11:40 pm - 4:42 pmSEA-SJU
14h 02m1 stop
$342JetBlue
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Wed, Oct 1 - Mon, Oct 6
United Airlines Logo
2:00 pm - 11:29 pmSJU-SEA
12h 29m1 stop
United Airlines Logo
10:54 pm - 12:00 pmSEA-SJU
10h 06m1 stop
$363United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
4:56 pm - 11:26 pmSJU-SEA
10h 30m1 stop
American Airlines Logo
12:41 am - 5:52 pmSEA-SJU
13h 11m2 stops
$370American Airlines
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Mon, Nov 3 - Mon, Nov 10
American Airlines Logo
1:35 pm - 11:35 pmSJU-SEA
13h 00m1 stop
American Airlines Logo
12:34 am - 2:08 pmSEA-SJU
10h 34m1 stop
$371American Airlines
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Wed, Oct 8 - Sun, Oct 19
United Airlines Logo
1:05 am - 11:31 amSJU-SEA
13h 26m2 stops
United Airlines Logo
10:54 pm - 12:00 pmSEA-SJU
10h 06m1 stop
$373United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 13
American Airlines Logo
7:00 am - 11:35 pmSJU-SEA
19h 35m1 stop
American Airlines Logo
8:49 pm - 6:25 pmSEA-SJU
18h 36m1 stop
$380American Airlines
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Mon, Oct 6 - Mon, Oct 13
American Airlines Logo
1:37 pm - 11:59 pmSJU-SEA
13h 22m1 stop
American Airlines Logo
11:24 pm - 3:54 pmSEA-SJU
13h 30m2 stops
$387American Airlines
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Sat, Oct 4 - Tue, Oct 14
Logo
1:59 am - 10:29 pmSJU-SEA
23h 30m1 stop
Logo
2:35 pm - 3:24 pmSEA-SJU
21h 49m1 stop
$415
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Fri, Oct 17 - Sat, Oct 25
Logo
9:00 am - 10:25 amSJU-SEA
29h 25m1 stop
Logo
12:58 pm - 2:54 amSEA-SJU
33h 56m3 stops
$417
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Mon, Nov 3 - Tue, Nov 11
Delta Logo
1:57 pm - 12:11 amSJU-SEA
14h 14m2 stops
Delta Logo
5:25 am - 11:13 pmSEA-SJU
13h 48m2 stops
$451Delta
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Thu, Nov 13 - Tue, Nov 18

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 3
SJU4:56 pmSan Juan Luis Munoz Marin Intl
10h 30m
1 stop
SEA11:26 pmSeattle/Tacoma Intl
Nov 10
SEA12:41 amSeattle/Tacoma Intl
13h 11m
2 stops
SJU5:52 pmSan Juan Luis Munoz Marin Intl
$370
Find similar
American Airlines
Oct 8
SJU1:35 pmSan Juan Luis Munoz Marin Intl
13h 00m
1 stop
SEA11:35 pmSeattle/Tacoma Intl
Oct 19
SEA12:34 amSeattle/Tacoma Intl
10h 34m
1 stop
SJU2:08 pmSan Juan Luis Munoz Marin Intl
$371
Find similar
American Airlines
Oct 6
SJU7:00 amSan Juan Luis Munoz Marin Intl
19h 35m
1 stop
SEA11:35 pmSeattle/Tacoma Intl
Oct 13
SEA8:49 pmSeattle/Tacoma Intl
18h 36m
1 stop
SJU6:25 pmSan Juan Luis Munoz Marin Intl
$380
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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
Oct 2
SJU2:00 pmSan Juan Luis Munoz Marin Intl
12h 29m
1 stop
SEA11:29 pmSeattle/Tacoma Intl
Oct 6
SEA10:54 pmSeattle/Tacoma Intl
10h 06m
1 stop
SJU12:00 pmSan Juan Luis Munoz Marin Intl
$363
Find similar
United Airlines
Oct 3
SJU1:05 amSan Juan Luis Munoz Marin Intl
13h 26m
2 stops
SEA11:31 amSeattle/Tacoma Intl
Oct 13
SEA10:54 pmSeattle/Tacoma Intl
10h 06m
1 stop
SJU12:00 pmSan Juan Luis Munoz Marin Intl
$373
Find similar
United Airlines
Oct 10
SJU1:05 amSan Juan Luis Munoz Marin Intl
12h 22m
1 stop
SEA10:27 amSeattle/Tacoma Intl
Oct 18
SEA7:37 pmSeattle/Tacoma Intl
15h 08m
2 stops
SJU1:45 pmSan Juan Luis Munoz Marin Intl
$419
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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 September 9, 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

Wed 10/1

1:29 pm-10:20 pm

1 stop11h 51m

Seattle/Tacoma Intl

Mon 10/6

11:40 pm-4:42 pm

1 stop14h 02m

$342

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 10/2

2:00 pm-11:29 pm

1 stop12h 29m

Seattle/Tacoma Intl

Mon 10/6

10:54 pm-12:00 pm

1 stop10h 06m

$363

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 11/3

4:56 pm-11:26 pm

1 stop10h 30m

Seattle/Tacoma Intl

Mon 11/10

12:41 am-5:52 pm

2 stops13h 11m

$370

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 10/8

1:35 pm-11:35 pm

1 stop13h 00m

Seattle/Tacoma Intl

Sun 10/19

12:34 am-2:08 pm

1 stop10h 34m

$371

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 10/3

1:05 am-11:31 am

2 stops13h 26m

Seattle/Tacoma Intl

Mon 10/13

10:54 pm-12:00 pm

1 stop10h 06m

$373

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 10/6

7:00 am-11:35 pm

1 stop19h 35m

Seattle/Tacoma Intl

Mon 10/13

8:49 pm-6:25 pm

1 stop18h 36m

$380

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Sat 10/4

1:37 pm-11:59 pm

1 stop13h 22m

Seattle/Tacoma Intl

Tue 10/14

11:24 pm-3:54 pm

2 stops13h 30m

$387

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 10/17

1:59 am-10:29 pm

1 stop23h 30m

Seattle/Tacoma Intl

Sat 10/25

2:35 pm-3:24 pm

1 stop21h 49m

$415

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 11/3

9:00 am-10:25 am

1 stop29h 25m

Seattle/Tacoma Intl

Tue 11/11

12:58 pm-2:54 am

3 stops33h 56m

$417

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 11/13

1:57 pm-12:11 am

2 stops14h 14m

Seattle/Tacoma Intl

Tue 11/18

5:25 am-11:13 pm

2 stops13h 48m

$451

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 $403. 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 $523 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 $454 on momondo.

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

You could potentially save up to 5% 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 September 2025, prices for San Juan Luis Munoz Marin Intl Airport to Seattle flights are approximately 6% cheaper 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.
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  • 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 06m 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 $235Free CancellationRating
6.3
8,025 reviews
Search Spirit Airlines flights
JetBluePriceFrom $245Free CancellationRating
7.2
2,913 reviews
Search JetBlue flights
United AirlinesPriceFrom $327Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
American AirlinesPriceFrom $348Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $445Free CancellationRating
7.9
7,965 reviews
Search Delta flights
SouthwestPriceFrom $555Free CancellationRating
8.0
4,250 reviews
Search Southwest flights

Traveling to a place near Seattle?

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