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 60% 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?

Southwest, Delta, and United 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 November 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.

$205 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.

5:20 pm - 9:29 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

20h 09m1 stop Minneapolis St Paul

4:29 pm - 2:49 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

54h 20m2 stops Denver Intl Miami

$537Multiple Airlines

Thu, Dec 24 - Wed, Jan 20

5:35 am - 3:40 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

14h 05m2 stops Orlando Sacramento Intl

6:50 pm - 10:45 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 55m2 stops Phoenix Sky Harbor Intl Orlando

$551Southwest

Mon, Feb 8 - Mon, Feb 8

5:35 am - 3:40 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

14h 05m2 stops Orlando Sacramento Intl

6:50 pm - 10:45 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 55m2 stops Phoenix Sky Harbor Intl Orlando

$551Southwest

Mon, Feb 8 - Mon, Feb 8

10:26 pm - 10:53 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

28h 27m2 stops Chicago O'Hare Intl Minneapolis St Paul

6:25 pm - 6:11 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

31h 46m3 stops Las Vegas Harry Reid Intl Los Angeles Dallas/Fort Worth

$556Multiple Airlines

Thu, Dec 24 - Tue, Dec 29

1:00 pm - 11:44 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

26h 44m2 stops Newark Los Angeles

6:15 am - 11:50 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

25h 35m2 stops Los Angeles Newark

$607United Airlines

Fri, Dec 4 - Tue, Dec 8

2:21 pm - 11:42 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

25h 21m2 stops Denver Intl Los Angeles

5:28 pm - 6:25 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

20h 57m2 stops Los Angeles Denver Intl

$607United Airlines

Wed, Jan 20 - Mon, Jan 25

8:08 am - 10:17 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

18h 09m1 stop Philadelphia

11:55 pm - 4:57 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

13h 02m2 stops Chicago O'Hare Intl Charlotte Douglas

$614American Airlines

Mon, Dec 21 - Thu, Jan 7

12:36 pm - 10:59 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

14h 23m1 stop Charlotte Douglas

12:47 pm - 1:06 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

20h 19m1 stop Charlotte Douglas

$614American Airlines

Tue, Dec 22 - Fri, Jan 8

3:00 pm - 11:53 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

12h 53m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

6:00 am - 11:58 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

13h 58m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$614Delta

Thu, Dec 24 - Sat, Jan 30

6:15 am - 8:27 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

17h 12m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

6:00 am - 10:25 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

13h 25m1 stop Atlanta Hartsfield-Jackson

$614Delta

Wed, Apr 28 - Sun, May 9

Cheap last minute flights

Enter your travel dates to find the best prices.

4:20 pm - 11:57 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

11h 37m1 stop Atlanta Hartsfield-Jackson

10:40 pm - 2:20 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 40m1 stop Atlanta Hartsfield-Jackson

$678Delta

Fri, Nov 13 - Mon, Nov 30

7:00 am - 5:10 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

14h 10m2 stops New York John F Kennedy Intl Minneapolis St Paul

10:40 pm - 2:20 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 40m1 stop Atlanta Hartsfield-Jackson

$678Delta

Fri, Nov 13 - Mon, Nov 30

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

11:15 pm - 1:54 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

10h 39m1 stop Detroit Metropolitan Wayne County

$678Delta

Fri, Nov 13 - Mon, Nov 30

12:30 pm - 11:35 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

15h 05m2 stops Orlando Chicago Midway

5:30 am - 8:50 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

11h 20m2 stops Chicago Midway Orlando

$732Southwest

Wed, Nov 11 - Fri, Nov 13

7:23 am - 9:45 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

30h 22m2 stops Orlando Las Vegas Harry Reid Intl

4:27 pm - 11:38 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

27h 11m3 stops Denver Intl Minneapolis St Paul Miami

$770Multiple Airlines

Wed, Nov 11 - Fri, Nov 13

6:19 am - 4:54 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

14h 35m1 stop Dallas/Fort Worth

9:14 pm - 2:22 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

13h 08m1 stop Miami

$772American Airlines

Fri, Nov 13 - Mon, Nov 30

1:40 pm - 11:42 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

14h 02m2 stops Miami Dallas/Fort Worth

9:14 pm - 6:05 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

16h 51m1 stop Miami

$772American Airlines

Fri, Nov 13 - Mon, Nov 30

3:55 pm - 9:45 amSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

21h 50m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

6:30 pm - 2:24 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

27h 54m3 stops Minneapolis St Paul Charlotte Douglas Orlando

$783Multiple Airlines

Sat, Nov 14 - Sat, Nov 21

2:05 am - 3:32 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

17h 27m2 stops Newark Chicago O'Hare Intl

8:09 am - 10:22 pmSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

10h 13m1 stop Washington, D.C. Dulles Intl

$882United Airlines

Sat, Nov 14 - Thu, Nov 26

2:05 am - 3:32 pmSJU San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl

17h 27m2 stops Newark Chicago O'Hare Intl

4:39 pm - 11:50 amSEA Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl

15h 11m2 stops Los Angeles Newark

$882United Airlines

Sat, Nov 14 - Thu, Nov 26

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Frontier flights from San Juan to Seattle

Our best Frontier deals on San Juan to Seattle flight tickets

Frontier

Dec 2

SJU5:01 amSan Juan Luis Munoz Marin Intl

35h 26m

2 stops

SEA12:27 pmSeattle/Tacoma Intl

Dec 9

SEA4:58 pmSeattle/Tacoma Intl

26h 31m

2 stops

SJU11:29 pmSan Juan Luis Munoz Marin Intl

$529

Frontier

Dec 4

SJU2:36 pmSan Juan Luis Munoz Marin Intl

29h 07m

2 stops

SEA3:43 pmSeattle/Tacoma Intl

Dec 9

SEA4:58 pmSeattle/Tacoma Intl

26h 31m

2 stops

SJU11:29 pmSan Juan Luis Munoz Marin Intl

$571

Frontier

Dec 2

SJU5:01 amSan Juan Luis Munoz Marin Intl

35h 26m

2 stops

SEA12:27 pmSeattle/Tacoma Intl

Dec 9

SEA4:58 pmSeattle/Tacoma Intl

13h 39m

2 stops

SJU10:37 amSan Juan Luis Munoz Marin Intl

$603

Southwest flights from San Juan to Seattle

Our best Southwest deals on San Juan to Seattle flight tickets

Southwest

Feb 8

SJU5:35 amSan Juan Luis Munoz Marin Intl

14h 05m

2 stops

SEA3:40 pmSeattle/Tacoma Intl

Feb 8

SEA6:50 pmSeattle/Tacoma Intl

11h 55m

2 stops

SJU10:45 amSan Juan Luis Munoz Marin Intl

$551

Southwest

Nov 25

SJU10:50 amSan Juan Luis Munoz Marin Intl

14h 20m

2 stops

SEA9:10 pmSeattle/Tacoma Intl

Dec 2

SEA9:25 amSeattle/Tacoma Intl

11h 25m

2 stops

SJU12:50 amSan Juan Luis Munoz Marin Intl

$580

Southwest

Dec 3

SJU10:45 amSan Juan Luis Munoz Marin Intl

16h 05m

2 stops

SEA10:50 pmSeattle/Tacoma Intl

Dec 10

SEA9:25 amSeattle/Tacoma Intl

11h 25m

2 stops

SJU12:50 amSan Juan Luis Munoz Marin Intl

$596

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

Thu 12/24

5:20 pm-9:29 am

1 stop20h 09m

Seattle/Tacoma Intl

Wed 1/20

4:29 pm-2:49 am

2 stops54h 20m

$537

Quickest round-trip

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 2/8

5:35 am-3:40 pm

2 stops14h 05m

Seattle/Tacoma Intl

Mon 2/8

6:50 pm-10:45 am

2 stops11h 55m

$551

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 2/8

5:35 am-3:40 pm

2 stops14h 05m

Seattle/Tacoma Intl

Mon 2/8

6:50 pm-10:45 am

2 stops11h 55m

$551

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 12/24

10:26 pm-10:53 pm

2 stops28h 27m

Seattle/Tacoma Intl

Tue 12/29

6:25 pm-6:11 am

3 stops31h 46m

$556

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 12/4

1:00 pm-11:44 am

2 stops26h 44m

Seattle/Tacoma Intl

Tue 12/8

6:15 am-11:50 am

2 stops25h 35m

$607

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 1/20

2:21 pm-11:42 am

2 stops25h 21m

Seattle/Tacoma Intl

Mon 1/25

5:28 pm-6:25 pm

2 stops20h 57m

$607

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 12/21

8:08 am-10:17 pm

1 stop18h 09m

Seattle/Tacoma Intl

Thu 1/7

11:55 pm-4:57 pm

2 stops13h 02m

$614

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 12/22

12:36 pm-10:59 pm

1 stop14h 23m

Seattle/Tacoma Intl

Fri 1/8

12:47 pm-1:06 pm

1 stop20h 19m

$614

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 12/24

3:00 pm-11:53 pm

2 stops12h 53m

Seattle/Tacoma Intl

Sat 1/30

6:00 am-11:58 pm

2 stops13h 58m

$614

San JuanSeattle

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

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 4/28

6:15 am-8:27 pm

2 stops17h 12m

Seattle/Tacoma Intl

Sun 5/9

6:00 am-10:25 pm

1 stop13h 25m

$614

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 typical for flights on this route.

Typical prices usually range from $500 to $718.
The lowest price recently found on this route was $522.

What is the cheapest month to fly to Seattle?

In general, January 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 $402. If you don’t want to visit Seattle in January, then you should wait until February to fly from San Juan, when ticket prices are also cheap, with an average price of $447.

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 $542 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 $508 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	$205
Fastest flight time	10h 04m
Direct flights	None

The best one-way flight to Seattle from San Juan in the past 72 hours is $205. The best round-trip flight deal from San Juan to Seattle found on momondo in the last 72 hours is $537.

The fastest flight from San Juan to Seattle takes 10h 04m

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 04m 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 November 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 8,699 reviews	Search Delta flights
JetBlue	PriceFrom $213	Free Cancellation	Rating 7.1 3,064 reviews	Search JetBlue flights
American Airlines	PriceFrom $384	Free Cancellation	Rating 7.0 12,227 reviews	Search American Airlines flights
United Airlines	PriceFrom $453	Free Cancellation	Rating 7.3 10,471 reviews	Search United Airlines flights
Southwest	PriceFrom $463	Free Cancellation	Rating 8.0 4,219 reviews	Search Southwest flights

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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.