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 57% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 5 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?

Sun Country Air, United Airlines, and American Airlines 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 September 2026, there are 5 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.

$170 Cheap Flights from San Juan to Seattle in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Juan to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:30 am - 9:20 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 50m1 stop New York John F Kennedy Intl

10:15 pm - 11:29 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

10h 14m1 stop New York John F Kennedy Intl

$311JetBlue

Wed, Oct 14 - Mon, Oct 19

2:53 pm - 12:36 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

12h 43m1 stop Chicago O'Hare Intl

6:20 pm - 9:46 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

12h 26m2 stops Phoenix Sky Harbor Intl Miami

$340American Airlines

Wed, Oct 14 - Mon, Oct 19

3:51 pm - 9:58 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

21h 07m1 stop Charlotte Douglas

1:25 pm - 11:20 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

18h 55m1 stop Charlotte Douglas

$340American Airlines

Thu, Oct 15 - Sat, Oct 17

10:30 am - 9:20 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 50m1 stop New York John F Kennedy Intl

10:15 pm - 1:51 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

12h 36m1 stop New York John F Kennedy Intl

$474JetBlue

Wed, Oct 21 - Sat, Oct 24

12:15 pm - 10:30 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

14h 15m2 stops Orlando Denver Intl

6:55 am - 10:00 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 05m2 stops Denver Intl Tampa

$501Southwest

Wed, Jan 20 - Mon, Jan 25

1:00 pm - 9:05 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

12h 05m1 stop Newark

10:45 pm - 1:11 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

10h 26m1 stop Newark

$550United Airlines

Thu, Mar 4 - Sun, Mar 7

7:00 am - 5:37 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 37m2 stops Houston George Bush Intcntl Denver Intl

5:05 am - 8:00 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 55m2 stops Denver Intl Chicago O'Hare Intl

$554United Airlines

Tue, Oct 20 - Tue, Oct 27

2:10 pm - 11:00 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

12h 50m1 stop New York John F Kennedy Intl

10:52 pm - 4:56 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

14h 04m1 stop New York John F Kennedy Intl

$554Delta

Thu, Nov 19 - Wed, Nov 25

7:00 am - 2:30 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

11h 30m1 stop New York John F Kennedy Intl

11:47 pm - 4:56 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

13h 09m2 stops Minneapolis St Paul New York John F Kennedy Intl

$554Delta

Wed, Nov 18 - Wed, Nov 25

5:05 am - 2:20 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

12h 15m2 stops Orlando Denver Intl

6:15 am - 8:10 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

10h 55m2 stops Denver Intl Tampa

$554Southwest

Wed, Oct 21 - Sat, Oct 24

Cheap last minute flights

Enter your travel dates to find the best prices.

6:33 am - 6:36 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

39h 03m2 stops Atlanta Hartsfield-Jackson Los Angeles

4:27 pm - 3:19 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

43h 52m2 stops Denver Intl Atlanta Hartsfield-Jackson

$578Frontier

Wed, Sep 23 - Sat, Oct 3

6:33 am - 9:42 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

30h 09m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

8:08 am - 10:53 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

23h 45m1 stop Miami

$603Multiple Airlines

Wed, Sep 23 - Sat, Oct 3

2:59 pm - 11:58 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

11h 59m1 stop Atlanta Hartsfield-Jackson

7:20 am - 10:19 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 59m1 stop Atlanta Hartsfield-Jackson

$618Delta

Wed, Sep 23 - Sat, Oct 3

2:59 pm - 11:58 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

11h 59m1 stop Atlanta Hartsfield-Jackson

5:55 pm - 11:45 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

14h 50m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$618Delta

Wed, Sep 23 - Sat, Oct 3

2:22 pm - 10:57 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

11h 35m1 stop Philadelphia

8:50 pm - 9:24 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

9h 34m1 stop Miami

$694American Airlines

Wed, Sep 23 - Sat, Oct 3

11:51 am - 10:40 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 49m2 stops Miami Los Angeles

8:50 pm - 1:57 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

14h 07m1 stop Miami

$694American Airlines

Fri, Sep 18 - Sun, Sep 27

10:30 am - 8:44 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 14m1 stop New York John F Kennedy Intl

9:40 pm - 1:39 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

12h 59m1 stop New York John F Kennedy Intl

$754JetBlue

Sat, Sep 19 - Mon, Sep 21

10:30 am - 8:44 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 14m1 stop New York John F Kennedy Intl

9:40 pm - 1:39 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

12h 59m1 stop New York John F Kennedy Intl

$754JetBlue

Sat, Sep 19 - Mon, Sep 21

6:25 am - 5:00 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 35m2 stops Orlando Nashville Intl

7:25 pm - 11:00 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

12h 35m2 stops Las Vegas Harry Reid Intl Orlando

$762Southwest

Sat, Sep 19 - Mon, Sep 21

6:25 am - 4:40 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

13h 15m2 stops Orlando Lambert-St Louis

7:25 pm - 12:20 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

13h 55m2 stops Las Vegas Harry Reid Intl Orlando

$762Southwest

Sat, Sep 19 - Mon, Sep 21

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JetBlue flights from San Juan to Seattle

Our best JetBlue deals on San Juan to Seattle flight tickets

JetBlue

Oct 14

SJU10:30 amSan Juan Luis Munoz Marin Intl

13h 50m

1 stop

SEA9:20 pmSeattle/Tacoma Intl

Oct 19

SEA10:15 pmSeattle/Tacoma Intl

10h 14m

1 stop

SJU11:29 amSan Juan Luis Munoz Marin Intl

$311

JetBlue

Oct 14

SJU10:30 amSan Juan Luis Munoz Marin Intl

13h 50m

1 stop

SEA9:20 pmSeattle/Tacoma Intl

Oct 19

SEA10:15 pmSeattle/Tacoma Intl

10h 14m

1 stop

SJU11:29 amSan Juan Luis Munoz Marin Intl

$474

JetBlue

Oct 10

SJU10:35 amSan Juan Luis Munoz Marin Intl

12h 59m

1 stop

SEA8:34 pmSeattle/Tacoma Intl

Oct 17

SEA10:15 pmSeattle/Tacoma Intl

12h 33m

1 stop

SJU1:48 pmSan Juan Luis Munoz Marin Intl

$476

American Airlines flights from San Juan to Seattle

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

American Airlines

Oct 10

SJU12:21 pmSan Juan Luis Munoz Marin Intl

14h 38m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

Oct 19

SEA11:59 pmSeattle/Tacoma Intl

11h 04m

1 stop

SJU2:03 pmSan Juan Luis Munoz Marin Intl

$340

American Airlines

Nov 4

SJU3:49 pmSan Juan Luis Munoz Marin Intl

12h 46m

1 stop

SEA12:35 amSeattle/Tacoma Intl

Nov 18

SEA9:15 amSeattle/Tacoma Intl

10h 44m

1 stop

SJU11:59 pmSan Juan Luis Munoz Marin Intl

$345

American Airlines

Oct 13

SJU6:00 amSan Juan Luis Munoz Marin Intl

10h 35m

1 stop

SEA1:35 pmSeattle/Tacoma Intl

Oct 21

SEA6:20 pmSeattle/Tacoma Intl

14h 11m

2 stops

SJU11:31 amSan Juan Luis Munoz Marin Intl

$351

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 10/14

10:30 am-9:20 pm

1 stop13h 50m

Seattle/Tacoma Intl

Mon 10/19

10:15 pm-11:29 am

1 stop10h 14m

$311

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 10/14

2:53 pm-12:36 am

1 stop12h 43m

Seattle/Tacoma Intl

Mon 10/19

6:20 pm-9:46 am

2 stops12h 26m

$340

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 10/15

3:51 pm-9:58 am

1 stop21h 07m

Seattle/Tacoma Intl

Sat 10/17

1:25 pm-11:20 am

1 stop18h 55m

$340

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 10/21

10:30 am-9:20 pm

1 stop13h 50m

Seattle/Tacoma Intl

Sat 10/24

10:15 pm-1:51 pm

1 stop12h 36m

$474

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 1/20

12:15 pm-10:30 pm

2 stops14h 15m

Seattle/Tacoma Intl

Mon 1/25

6:55 am-10:00 pm

2 stops11h 05m

$501

Quickest round-trip

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 3/4

1:00 pm-9:05 pm

1 stop12h 05m

Seattle/Tacoma Intl

Sun 3/7

10:45 pm-1:11 pm

1 stop10h 26m

$550

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 10/20

7:00 am-5:37 pm

2 stops13h 37m

Seattle/Tacoma Intl

Tue 10/27

5:05 am-8:00 pm

2 stops11h 55m

$554

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 11/19

2:10 pm-11:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Wed 11/25

10:52 pm-4:56 pm

1 stop14h 04m

$554

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 11/18

7:00 am-2:30 pm

1 stop11h 30m

Seattle/Tacoma Intl

Wed 11/25

11:47 pm-4:56 pm

2 stops13h 09m

$554

San JuanSeattle

SJU San Juan Luis Munoz Marin Intl - SEA Seattle/Tacoma Intl

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 10/21

5:05 am-2:20 pm

2 stops12h 15m

Seattle/Tacoma Intl

Sat 10/24

6:15 am-8:10 pm

2 stops10h 55m

$554

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 typical price of a round-trip flight between San Juan and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $447 to $554.
The lowest price recently found on this route was $311.

What is the cheapest month to fly to Seattle?

In general, February 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 $384. If you don’t want to visit Seattle in February, then you should wait until January to fly from San Juan, when ticket prices are also cheap, with an average price of $429.

How far in advance should I book a flight from San Juan 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 $536 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 $549 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

Best Price Found	$170
Fastest flight time	10h 58m
Direct flights	None

The best one-way flight to Seattle from San Juan in the past 72 hours is $170. The best round-trip flight deal from San Juan to Seattle found on momondo in the last 72 hours is $311.

The fastest flight from San Juan to Seattle takes 10h 58m

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

Search flight deals

Frequently asked questions about flying from San Juan to Seattle

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 58m 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 September 2026, there are 5 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
Delta	PriceFrom $182	Free Cancellation	Rating 7.8 8,579 reviews	Search Delta flights
JetBlue	PriceFrom $266	Free Cancellation	Rating 7.1 3,035 reviews	Search JetBlue flights
American Airlines	PriceFrom $364	Free Cancellation	Rating 7.1 12,075 reviews	Search American Airlines flights
United Airlines	PriceFrom $424	Free Cancellation	Rating 7.4 10,214 reviews	Search United Airlines flights
Southwest	PriceFrom $463	Free Cancellation	Rating 8.0 4,188 reviews	Search Southwest flights

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Cle Elum

Marysville

Lacey

Kirkland

Centralia

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?

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.