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$120+ Cheap flights from San Juan to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SEA
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Seattle/Tacoma Intl are usually found in September or October, booked 32 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Juan to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 1, 2025.

Round-trip from

$378
(Mytrip)

One-way from

$120
(Cheapflightsfares)

Popular in

July

Cheapest in

September

Average price

$532
From San Juan to Seattle/Tacoma Intl
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One-way flight from San Juan to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 17% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San Juan to Seattle

Cheapest flights from San Juan to Seattle
Explore the most affordable flight options available from San Juan to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.

This Mytrip deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/112:54 amSJU - SEA
3 stops37h 41mSpirit Airlines
Fri 5/96:00 amSEA - SJU
2 stops29h 30mSpirit Airlines
Deal found 3/31$378
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/21:40 pmSJU - SEA
1 stop12h 23mUnited Airlines
Fri 5/96:15 amSEA - SJU
2 stops14h 39mUnited Airlines
Deal found 3/31$380
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:55 pmSJU - SEA
1 stop13h 38mAmerican Airlines
Mon 10/61:21 amSEA - SJU
2 stops11h 59mAmerican Airlines
Deal found 3/31$392
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/42:28 pmSJU - SEA
2 stops12h 41mDelta
Mon 10/1312:40 amSEA - SJU
2 stops12h 45mDelta
Deal found 3/31$499
This JetBlue deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:58 amSJU - SEA
1 stop11h 56mJetBlue
Fri 5/1610:40 pmSEA - SJU
1 stop10h 54mJetBlue
Deal found 3/30$506
This Alaska Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:30 amSJU - SEA
2 stops36h 52mAlaska Airlines
Fri 8/294:47 pmSEA - SJU
2 stops27h 13mAlaska Airlines
Deal found 3/31$548
This Sun Country Air deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/91:45 pmSJU - SEA
1 stop24h 07mSun Country Air
Fri 4/186:27 pmSEA - SJU
1 stop17h 38mSun Country Air
Deal found 3/31$572
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/262:06 amSJU - SEA
3 stops18h 22mMultiple Airlines
Fri 9/56:31 pmSEA - SJU
2 stops19h 15mMultiple Airlines
Deal found 3/30$575
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2711:25 amSJU - SEA
2 stops13h 00mSouthwest
Sat 7/59:00 pmSEA - SJU
2 stops12h 10mSouthwest
Deal found 3/31$670

Cheapflights Fare Finder

Customize your flight search to find flights from San Juan to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 1, 2025.
Use the filters below to find and compare flights from San Juan to Seattle that are best for you.

Fly from

San Juan

Fly to

Seattle

Route

Depart

Return

Price

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 5/1

12:54 am-11:35 am

3 stops37h 41m

Seattle/Tacoma Intl

Fri 5/9

6:00 am-2:30 pm

2 stops29h 30m

$378

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 5/2

1:40 pm-11:03 pm

1 stop12h 23m

Seattle/Tacoma Intl

Fri 5/9

6:15 am-11:54 pm

2 stops14h 39m

$380

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 5/1

2:12 am-7:51 pm

2 stops20h 39m

Seattle/Tacoma Intl

Fri 5/9

6:33 pm-3:11 pm

1 stop17h 38m

$401

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 4/29

6:21 am-11:39 pm

1 stop20h 18m

Seattle/Tacoma Intl

Mon 5/5

1:10 am-2:17 pm

1 stop10h 07m

$427

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 4/22

6:35 am-8:03 pm

1 stop16h 28m

Seattle/Tacoma Intl

Mon 4/28

12:45 am-4:01 pm

2 stops12h 16m

$499

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Thu 5/8

11:58 am-8:54 pm

1 stop11h 56m

Seattle/Tacoma Intl

Fri 5/16

10:40 pm-12:34 pm

1 stop10h 54m

$506

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Wed 4/9

1:45 pm-10:52 am

1 stop24h 07m

Seattle/Tacoma Intl

Fri 4/18

6:27 pm-3:05 pm

1 stop17h 38m

$572

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 5/16

6:30 am-11:57 pm

2 stops20h 27m

Seattle/Tacoma Intl

Tue 5/27

7:00 am-5:12 am

2 stops19h 12m

$657

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Fri 6/27

11:25 am-9:25 pm

2 stops13h 00m

Seattle/Tacoma Intl

Sat 7/5

9:00 pm-12:10 pm

2 stops12h 10m

$670

San JuanSeattle

SJU - SEA

SJUSEA

San Juan Luis Munoz Marin Intl

Tue 4/29

12:54 am-11:35 am

2 stops13h 41m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 16 results
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Best time to book a flight from San Juan to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from San Juan with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Juan to Seattle

How far ahead should I book a flight from San Juan to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Seattle. Price data was last updated on March 28, 2025.

The best time to book flights from San Juan to Seattle is 32 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Juan to Seattle?

Currently, January is the cheapest month in which you can book a flight from San Juan to Seattle (average of $238). Flying from San Juan to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SJU to SEA?

Find hourly flight availability from San Juan to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2025.

A simple way to save on the total cost of your ticket is to fly from San Juan to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from San Juan to Seattle?

Use this chart to determine the cheapest time to fly round-trip from San Juan to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan to Seattle flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated April 1, 2025.
To help decide which airline to fly from San Juan to Seattle, see what other customers have to say about Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
JetBlue
7.3
Good
2,924 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from San Juan to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from San Juan?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from San Juan to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from San Juan; the airport handles an average of 0 inbound flights from San Juan per day. You should also have plenty of airline options to choose from since 6 airlines have flights to the Seattle airport from San Juan. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • What are the cheapest airlines flying from San Juan to Seattle round-trip?

    Our cheapest airline available from San Juan to Seattle is Spirit Airlines. Our recent data shows that you can find tickets from as low as $378 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $380 and $427 round-trip. Spirit Airlines is currently priced 30% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from San Juan to Seattle one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $120. American Airlines flights start at $219 while deals on Southwest start at $223 one-way.

  • Can I find deals for flights from San Juan to Seattle that include hotel bookings?

    Yes. In addition to deals on San Juan to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Seattle.

  • Can I find deals for business class flights from San Juan to Seattle?

    Yes. Cheapflights offers flight deals from San Juan to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan to Seattle?

    Currently, January is the cheapest month in which you can book a flight from San Juan to Seattle (average of $238). Flying from San Juan to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Juan to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Seattle flights
Luis Munoz Marin Intl to Portland flights
Aguadilla to Portland flights
Aguadilla to Seattle flights

Top 6 airlines flying from San Juan to Seattle

Discover the top 6 airlines that operate flights from San Juan to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$143Average$430FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$235Average$425FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$296Average$531FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$332Average$550FlexibilityNo cancel feeOn-time71%
DeltaCheapest$454Average$600FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$589Average$661FlexibilityNo cancel feeOn-time63%
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