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

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

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 42% 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.

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 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.

$110 Cheap Flights from San Juan to Seattle in 2025/26

Q: 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 $497 to $742. The lowest price recently found on this route was $354.

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Find the cheapest flights from San Juan to Seattle

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:22 pm - 6:22 pmSJU-SEA

30h 00m2 stops

1:11 pm - 11:59 pmSEA-SJU

30h 48m3 stops

$354Multiple Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

3:55 pm - 11:15 pmSJU-SEA

11h 20m1 stop

10:59 pm - 1:06 pmSEA-SJU

10h 07m1 stop

$363Delta

Find Deal

Thu, Jan 22 - Mon, Jan 26

4:22 pm - 6:43 pmSJU-SEA

30h 21m3 stops

1:11 pm - 3:26 pmSEA-SJU

46h 15m3 stops

$364Multiple Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

1:58 pm - 8:45 pmSJU-SEA

10h 47m1 stop

8:35 am - 11:59 pmSEA-SJU

11h 24m2 stops

$371American Airlines

Find Deal

Wed, Feb 4 - Sun, Feb 8

7:07 am - 5:45 pmSJU-SEA

14h 38m1 stop

11:11 pm - 5:01 pmSEA-SJU

13h 50m1 stop

$372American Airlines

Find Deal

Wed, Feb 4 - Sun, Feb 8

5:02 pm - 10:42 amSJU-SEA

21h 40m1 stop

2:27 pm - 1:49 pmSEA-SJU

19h 22m2 stops

$379Multiple Airlines

Find Deal

Mon, Dec 22 - Sat, Jan 10

5:02 pm - 10:42 amSJU-SEA

21h 40m1 stop

2:54 pm - 8:54 pmSEA-SJU

26h 00m2 stops

$389Multiple Airlines

Find Deal

Mon, Dec 22 - Mon, Jan 5

5:02 pm - 10:42 amSJU-SEA

21h 40m1 stop

10:19 am - 6:34 amSEA-SJU

16h 15m2 stops

$391Multiple Airlines

Find Deal

Mon, Dec 22 - Sun, Jan 11

5:40 am - 9:46 pmSJU-SEA

19h 06m1 stop

3:57 pm - 4:00 amSEA-SJU

9h 03m1 stop

$394American Airlines

Find Deal

Thu, Apr 23 - Mon, May 4

7:10 am - 8:51 pmSJU-SEA

17h 41m1 stop

8:45 am - 9:37 amSEA-SJU

20h 52m1 stop

$397Multiple Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

American Airlines flights from San Juan to Seattle

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

American Airlines

Feb 4

SJU7:00 amSan Juan Luis Munoz Marin Intl

19h 07m

1 stop

SEA10:07 pmSeattle/Tacoma Intl

Feb 8

SEA8:04 amSeattle/Tacoma Intl

9h 35m

1 stop

SJU9:39 pmSan Juan Luis Munoz Marin Intl

$371

Find similar

American Airlines

Dec 14

SJU7:00 amSan Juan Luis Munoz Marin Intl

18h 13m

1 stop

SEA9:13 pmSeattle/Tacoma Intl

Jan 7

SEA11:11 pmSeattle/Tacoma Intl

10h 27m

1 stop

SJU1:38 pmSan Juan Luis Munoz Marin Intl

$394

Find similar

American Airlines

Dec 21

SJU1:30 amSan Juan Luis Munoz Marin Intl

17h 24m

1 stop

SEA2:54 pmSeattle/Tacoma Intl

Jan 5

SEA2:52 pmSeattle/Tacoma Intl

10h 08m

1 stop

SJU5:00 amSan Juan Luis Munoz Marin Intl

$402

Find similar

United Airlines flights from San Juan to Seattle

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

United Airlines

Feb 3

SJU2:05 amSan Juan Luis Munoz Marin Intl

17h 56m

2 stops

SEA4:01 pmSeattle/Tacoma Intl

Feb 8

SEA5:00 amSeattle/Tacoma Intl

9h 25m

1 stop

SJU6:25 pmSan Juan Luis Munoz Marin Intl

$453

Find similar

United Airlines

May 14

SJU1:40 pmSan Juan Luis Munoz Marin Intl

12h 19m

1 stop

SEA10:59 pmSeattle/Tacoma Intl

May 23

SEA7:10 pmSeattle/Tacoma Intl

13h 54m

2 stops

SJU12:04 pmSan Juan Luis Munoz Marin Intl

$518

Find similar

United Airlines

Dec 14

SJU2:25 pmSan Juan Luis Munoz Marin Intl

25h 30m

2 stops

SEA11:55 amSeattle/Tacoma Intl

Dec 21

SEA7:00 amSeattle/Tacoma Intl

19h 11m

2 stops

SJU6:11 amSan Juan Luis Munoz Marin Intl

$521

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 1/22

4:22 pm-6:22 pm

2 stops30h 00m

Seattle/Tacoma Intl

Mon 1/26

1:11 pm-11:59 pm

3 stops30h 48m

$354

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 1/22

3:55 pm-11:15 pm

1 stop11h 20m

Seattle/Tacoma Intl

Mon 1/26

10:59 pm-1:06 pm

1 stop10h 07m

$363

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 1/22

4:22 pm-6:43 pm

3 stops30h 21m

Seattle/Tacoma Intl

Mon 1/26

1:11 pm-3:26 pm

3 stops46h 15m

$364

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 2/4

1:58 pm-8:45 pm

1 stop10h 47m

Seattle/Tacoma Intl

Sun 2/8

8:35 am-11:59 pm

2 stops11h 24m

$371

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 2/4

7:07 am-5:45 pm

1 stop14h 38m

Seattle/Tacoma Intl

Sun 2/8

11:11 pm-5:01 pm

1 stop13h 50m

$372

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 12/22

5:02 pm-10:42 am

1 stop21h 40m

Seattle/Tacoma Intl

Sat 1/10

2:27 pm-1:49 pm

2 stops19h 22m

$379

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 12/22

5:02 pm-10:42 am

1 stop21h 40m

Seattle/Tacoma Intl

Mon 1/5

2:54 pm-8:54 pm

2 stops26h 00m

$389

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Mon 12/22

5:02 pm-10:42 am

1 stop21h 40m

Seattle/Tacoma Intl

Sun 1/11

10:19 am-6:34 am

2 stops16h 15m

$391

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 4/23

5:40 am-9:46 pm

1 stop19h 06m

Seattle/Tacoma Intl

Mon 5/4

3:57 pm-4:00 am

1 stop9h 03m

$394

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 12/3

7:10 am-8:51 pm

1 stop17h 41m

Seattle/Tacoma Intl

Wed 12/10

8:45 am-9:37 am

1 stop20h 52m

$397

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?

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 $436. 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 $529 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 $436 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. 11h 20m 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 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 8,156 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $304	Free Cancellation	Rating 7.2 2,902 reviews	Search JetBlue flights
United Airlines	PriceFrom $356	Free Cancellation	Rating 7.4 9,028 reviews	Search United Airlines flights
American Airlines	PriceFrom $363	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
Delta	PriceFrom $445	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
Southwest	PriceFrom $555	Free Cancellation	Rating 8.0 4,249 reviews	Search Southwest flights

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SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Lakewood

Federal Way

Fife

Cle Elum

Centralia

Kirkland

Westport

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.