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 38% 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?

Frontier 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 January 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.

$133 Cheap Flights from San Juan to Seattle in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

4:36 pm - 9:11 am

SJU

SEA

44h 35m2 stops

12:34 pm - 11:36 pm

SEA

SJU

31h 02m2 stops

$292Multiple Airlines

mié., feb. 4 - dom., feb. 8

4:36 pm - 9:11 am

SJU

SEA

44h 35m2 stops

12:34 pm - 11:36 pm

SEA

SJU

31h 02m2 stops

$294Multiple Airlines

mié., feb. 4 - dom., feb. 8

12:00 pm - 8:53 pm

SJU

SEA

11h 53m1 stop

11:30 am - 1:19 am

SEA

SJU

10h 49m1 stop

$327JetBlue

dom., may. 17 - mié., may. 27

12:10 pm - 11:05 pm

SJU

SEA

14h 55m2 stops

6:45 am - 12:35 am

SEA

SJU

13h 50m2 stops

$345Southwest

mié., feb. 25 - mié., mar. 4

2:12 pm - 11:12 pm

SJU

SEA

13h 00m1 stop

7:10 am - 11:56 pm

SEA

SJU

12h 46m1 stop

$364Delta

jue., feb. 26 - lun., mar. 2

1:30 pm - 9:57 pm

SJU

SEA

11h 27m1 stop

10:08 pm - 10:40 am

SEA

SJU

9h 32m1 stop

$370American Airlines

mié., mar. 18 - mar., mar. 31

6:00 am - 3:34 pm

SJU

SEA

13h 34m2 stops

6:00 am - 10:26 pm

SEA

SJU

12h 26m2 stops

$374American Airlines

mar., feb. 3 - mar., feb. 10

6:00 am - 12:42 am

SJU

SEA

21h 42m2 stops

6:00 am - 8:11 pm

SEA

SJU

35h 11m2 stops

$376Frontier

mié., abr. 1 - mié., abr. 8

8:45 pm - 10:33 pm

SJU

SEA

53h 48m3 stops

12:34 pm - 11:59 pm

SEA

SJU

31h 25m2 stops

$394Multiple Airlines

dom., feb. 1 - dom., feb. 8

12:10 pm - 10:30 pm

SJU

SEA

14h 20m2 stops

6:45 am - 12:35 am

SEA

SJU

13h 50m2 stops

$395Southwest

mié., feb. 18 - mié., feb. 25

JetBlue flights from San Juan to Seattle

Our best JetBlue deals on San Juan to Seattle flight tickets

JetBlue

May 17

SJU12:00 pmSan Juan Luis Munoz Marin Intl

11h 53m

1 stop

SEA8:53 pmSeattle/Tacoma Intl

May 27

SEA11:30 amSeattle/Tacoma Intl

10h 49m

1 stop

SJU1:19 amSan Juan Luis Munoz Marin Intl

$327

Find similar

JetBlue

May 19

SJU12:00 pmSan Juan Luis Munoz Marin Intl

11h 53m

1 stop

SEA8:53 pmSeattle/Tacoma Intl

May 28

SEA11:30 amSeattle/Tacoma Intl

10h 49m

1 stop

SJU1:19 amSan Juan Luis Munoz Marin Intl

$476

Find similar

JetBlue

May 17

SJU11:25 pmSan Juan Luis Munoz Marin Intl

13h 55m

1 stop

SEA10:20 amSeattle/Tacoma Intl

May 27

SEA11:59 pmSeattle/Tacoma Intl

10h 48m

1 stop

SJU1:47 pmSan Juan Luis Munoz Marin Intl

$477

Find similar

Southwest flights from San Juan to Seattle

Our best Southwest deals on San Juan to Seattle flight tickets

Southwest

Feb 25

SJU12:10 pmSan Juan Luis Munoz Marin Intl

14h 55m

2 stops

SEA11:05 pmSeattle/Tacoma Intl

Mar 4

SEA6:45 amSeattle/Tacoma Intl

13h 50m

2 stops

SJU12:35 amSan Juan Luis Munoz Marin Intl

$345

Find similar

Southwest

Feb 18

SJU12:10 pmSan Juan Luis Munoz Marin Intl

14h 20m

2 stops

SEA10:30 pmSeattle/Tacoma Intl

Feb 25

SEA6:45 amSeattle/Tacoma Intl

13h 50m

2 stops

SJU12:35 amSan Juan Luis Munoz Marin Intl

$395

Find similar

Southwest

Apr 18

SJU5:15 amSan Juan Luis Munoz Marin Intl

20h 45m

2 stops

SEA11:00 pmSeattle/Tacoma Intl

Apr 25

SEA11:55 pmSeattle/Tacoma Intl

13h 35m

2 stops

SJU4:30 pmSan Juan Luis Munoz Marin Intl

$490

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mié. 2/4

4:36 pm-9:11 am

2 stops44h 35m

Seattle/Tacoma Intl

dom. 2/8

12:34 pm-11:36 pm

2 stops31h 02m

$292

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mié. 2/4

4:36 pm-9:11 am

2 stops44h 35m

Seattle/Tacoma Intl

dom. 2/8

12:34 pm-11:36 pm

2 stops31h 02m

$294

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

dom. 5/17

12:00 pm-8:53 pm

1 stop11h 53m

Seattle/Tacoma Intl

mié. 5/27

11:30 am-1:19 am

1 stop10h 49m

$327

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mié. 2/25

12:10 pm-11:05 pm

2 stops14h 55m

Seattle/Tacoma Intl

mié. 3/4

6:45 am-12:35 am

2 stops13h 50m

$345

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

jue. 2/26

2:12 pm-11:12 pm

1 stop13h 00m

Seattle/Tacoma Intl

lun. 3/2

7:10 am-11:56 pm

1 stop12h 46m

$364

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mié. 3/18

1:30 pm-9:57 pm

1 stop11h 27m

Seattle/Tacoma Intl

mar. 3/31

10:08 pm-10:40 am

1 stop9h 32m

$370

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mar. 2/3

6:00 am-3:34 pm

2 stops13h 34m

Seattle/Tacoma Intl

mar. 2/10

6:00 am-10:26 pm

2 stops12h 26m

$374

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mié. 4/1

6:00 am-12:42 am

2 stops21h 42m

Seattle/Tacoma Intl

mié. 4/8

6:00 am-8:11 pm

2 stops35h 11m

$376

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

dom. 2/1

8:45 pm-10:33 pm

3 stops53h 48m

Seattle/Tacoma Intl

dom. 2/8

12:34 pm-11:59 pm

2 stops31h 25m

$394

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

mié. 2/18

12:10 pm-10:30 pm

2 stops14h 20m

Seattle/Tacoma Intl

mié. 2/25

6:45 am-12:35 am

2 stops13h 50m

$395

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, 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 $431. If you don’t want to visit Seattle in February, then you should wait until October to fly from San Juan, when ticket prices are also cheap, with an average price of $438.

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 $538 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 $465 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

Fastest flight time	10h 50m
Direct flights	None

The fastest flight from San Juan to Seattle takes 10h 50m

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 50m 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 January 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
Spirit Airlines	PriceFrom $241	Free Cancellation	Rating 6.3 8,283 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $266	Free Cancellation	Rating 7.2 2,896 reviews	Search JetBlue flights
American Airlines	PriceFrom $365	Free Cancellation	Rating 7.2 11,088 reviews	Search American Airlines flights
Delta	PriceFrom $377	Free Cancellation	Rating 7.9 8,022 reviews	Search Delta flights
United Airlines	PriceFrom $377	Free Cancellation	Rating 7.4 9,138 reviews	Search United Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Tukwila

Federal Way

Cle Elum

Lakewood

Fife

Westport

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.