What airlines fly to Seattle?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Seattle from San Juan according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San Juan to Seattle/Tacoma Intl?

JetBlue, Frontier, and Delta are the most popular carriers operating from San Juan to Seattle/Tacoma Intl

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

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

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

As of October 2025, there are 6 operators available to choose from for flights from San Juan to Seattle/Tacoma Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Juan to Seattle/Tacoma Intl Airport.

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

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$158 Cheap Flights from San Juan to Seattle in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:05 pm - 10:36 pmSJU-SEA

31h 31m1 stop

11:56 pm - 8:54 pmSEA-SJU

17h 58m1 stop

$318JetBlue

Find Deal

Fri, Oct 17 - Tue, Oct 21

1:25 pm - 10:21 pmSJU-SEA

11h 56m1 stop

11:56 pm - 9:24 pmSEA-SJU

18h 28m1 stop

$343JetBlue

Find Deal

Tue, Oct 21 - Fri, Oct 24

3:32 pm - 12:11 amSJU-SEA

12h 39m2 stops

6:00 am - 11:13 pmSEA-SJU

13h 13m1 stop

$363Delta

Find Deal

Thu, Nov 13 - Tue, Nov 18

9:00 am - 10:25 amSJU-SEA

29h 25m1 stop

7:00 am - 3:33 amSEA-SJU

16h 33m1 stop

$368Multiple Airlines

Find Deal

Wed, Nov 5 - Wed, Nov 12

1:35 pm - 12:27 amSJU-SEA

13h 52m2 stops

8:49 pm - 12:39 pmSEA-SJU

12h 50m1 stop

$369American Airlines

Find Deal

Thu, Oct 23 - Sun, Oct 26

2:47 pm - 11:26 pmSJU-SEA

12h 39m1 stop

7:23 am - 9:35 pmSEA-SJU

10h 12m1 stop

$370American Airlines

Find Deal

Mon, Nov 3 - Tue, Nov 11

4:08 pm - 12:13 pmSJU-SEA

24h 05m2 stops

9:17 am - 4:39 amSEA-SJU

15h 22m1 stop

$386Multiple Airlines

Find Deal

Fri, Nov 14 - Fri, Dec 5

7:15 am - 8:20 pmSJU-SEA

16h 05m2 stops

6:00 am - 9:59 pmSEA-SJU

12h 59m1 stop

$449Delta

Find Deal

Fri, Oct 24 - Fri, Oct 31

2:05 am - 12:39 pmSJU-SEA

14h 34m1 stop

5:05 am - 6:25 pmSEA-SJU

9h 20m1 stop

$453United Airlines

Find Deal

Wed, Nov 12 - Tue, Nov 18

6:40 pm - 10:47 amSJU-SEA

19h 07m1 stop

11:50 pm - 1:40 pmSEA-SJU

10h 50m1 stop

$467United Airlines

Find Deal

Thu, Oct 16 - Wed, Oct 29

American Airlines flights from San Juan to Seattle

Our best American Airlines deals on San Juan to Seattle flight tickets

American Airlines

Oct 23

SJU1:35 pmSan Juan Luis Munoz Marin Intl

13h 52m

2 stops

SEA12:27 amSeattle/Tacoma Intl

Oct 26

SEA8:49 pmSeattle/Tacoma Intl

12h 50m

1 stop

SJU12:39 pmSan Juan Luis Munoz Marin Intl

$369

Find similar

American Airlines

Nov 3

SJU2:47 pmSan Juan Luis Munoz Marin Intl

12h 39m

1 stop

SEA11:26 pmSeattle/Tacoma Intl

Nov 11

SEA7:23 amSeattle/Tacoma Intl

10h 12m

1 stop

SJU9:35 pmSan Juan Luis Munoz Marin Intl

$370

Find similar

American Airlines

Nov 4

SJU11:13 amSan Juan Luis Munoz Marin Intl

14h 03m

2 stops

SEA9:16 pmSeattle/Tacoma Intl

Nov 11

SEA5:24 amSeattle/Tacoma Intl

12h 11m

1 stop

SJU9:35 pmSan Juan Luis Munoz Marin Intl

$371

Find similar

JetBlue flights from San Juan to Seattle

Our best JetBlue deals on San Juan to Seattle flight tickets

JetBlue

Oct 17

SJU6:05 pmSan Juan Luis Munoz Marin Intl

31h 31m

1 stop

SEA10:36 pmSeattle/Tacoma Intl

Oct 21

SEA11:56 pmSeattle/Tacoma Intl

17h 58m

1 stop

SJU8:54 pmSan Juan Luis Munoz Marin Intl

$318

Find similar

JetBlue

Oct 21

SJU1:25 pmSan Juan Luis Munoz Marin Intl

11h 56m

1 stop

SEA10:21 pmSeattle/Tacoma Intl

Oct 24

SEA11:56 pmSeattle/Tacoma Intl

18h 28m

1 stop

SJU9:24 pmSan Juan Luis Munoz Marin Intl

$343

Find similar

JetBlue

Oct 16

SJU2:25 pmSan Juan Luis Munoz Marin Intl

11h 21m

1 stop

SEA10:46 pmSeattle/Tacoma Intl

Oct 20

SEA11:56 pmSeattle/Tacoma Intl

11h 58m

1 stop

SJU2:54 pmSan Juan Luis Munoz Marin Intl

$383

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 10/17

6:05 pm-10:36 pm

1 stop31h 31m

Seattle/Tacoma Intl

Tue 10/21

11:56 pm-8:54 pm

1 stop17h 58m

$318

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 10/21

1:25 pm-10:21 pm

1 stop11h 56m

Seattle/Tacoma Intl

Fri 10/24

11:56 pm-9:24 pm

1 stop18h 28m

$343

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 11/13

3:32 pm-12:11 am

2 stops12h 39m

Seattle/Tacoma Intl

Tue 11/18

6:00 am-11:13 pm

1 stop13h 13m

$363

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/5

9:00 am-10:25 am

1 stop29h 25m

Seattle/Tacoma Intl

Wed 11/12

7:00 am-3:33 am

1 stop16h 33m

$368

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 10/23

1:35 pm-12:27 am

2 stops13h 52m

Seattle/Tacoma Intl

Sun 10/26

8:49 pm-12:39 pm

1 stop12h 50m

$369

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 11/3

2:47 pm-11:26 pm

1 stop12h 39m

Seattle/Tacoma Intl

Tue 11/11

7:23 am-9:35 pm

1 stop10h 12m

$370

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 11/14

4:08 pm-12:13 pm

2 stops24h 05m

Seattle/Tacoma Intl

Fri 12/5

9:17 am-4:39 am

1 stop15h 22m

$386

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 10/24

7:15 am-8:20 pm

2 stops16h 05m

Seattle/Tacoma Intl

Fri 10/31

6:00 am-9:59 pm

1 stop12h 59m

$449

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/12

2:05 am-12:39 pm

1 stop14h 34m

Seattle/Tacoma Intl

Tue 11/18

5:05 am-6:25 pm

1 stop9h 20m

$453

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 10/16

6:40 pm-10:47 am

1 stop19h 07m

Seattle/Tacoma Intl

Wed 10/29

11:50 pm-1:40 pm

1 stop10h 50m

$467

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Juan 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

Prices

Airlines

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from San Juan to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $409. If you don’t want to visit Seattle in October, then you should wait until February to fly from San Juan, 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 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 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 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 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 for as low as $466 on momondo.

Cheap San Juan to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan to Seattle

Direct flights	None

There are no direct flights from San Juan to Seattle. There are no popular flight routes from San Juan to Seattle.

Search flight deals

How far is San Juan to Seattle/Tacoma Intl by plane?
San Juan and Seattle/Tacoma Intl are 3720.7 mi apart from one another. 10h 30m is a normal flight duration for this route.
When did momondo last update prices for flights from San Juan to Seattle/Tacoma Intl Airport?
Prices for flights from San Juan to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from San Juan to Seattle/Tacoma Intl Airport?
As of October 2025, there are 6 operators available to choose from for flights from San Juan to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from San Juan to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Juan to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from San Juan to Seattle

Compare and see reviews for airlines that fly from San Juan to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $241	Free Cancellation	Rating 6.3 8,071 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $304	Free Cancellation	Rating 7.2 2,911 reviews	Search JetBlue flights
United Airlines	PriceFrom $353	Free Cancellation	Rating 7.4 8,940 reviews	Search United Airlines flights
American Airlines	PriceFrom $365	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $445	Free Cancellation	Rating 7.9 7,966 reviews	Search Delta flights
Southwest	PriceFrom $555	Free Cancellation	Rating 8.0 4,248 reviews	Search Southwest flights

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Olympia

Lynnwood

Kent

Puyallup

Marysville

Federal Way

Tukwila

Kirkland

Fife

Centralia

Shoreline

Lakewood

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?

Yes. momondo allows you to filter the results for San Juan to Seattle flights to just show those with flexible booking policies.

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?

Yes momondo offers price alerts on flights to Seattle from San Juan. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.