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$163+ Cheap flights from Seattle (SEA) to San Salvador (SAL)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Salvador El Salvador Intl are usually found in February or September, booked 26 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Seattle to San Salvador

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Salvador (SAL). 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 August 14, 2025.

Round-trip from

$369
(Avianca)

One-way from

$163
(Avianca)

Popular in

December

Cheapest in

February

Average price

$579
From Seattle/Tacoma Intl to San Salvador El Salvador Intl
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One-way flight from Seattle/Tacoma Intl to San Salvador El Salvador Intl
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Highest demand for flights based on searches. 17% potential increase in price ($138 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to San Salvador

Cheapest flights from Seattle to San Salvador
Explore the most affordable flight options available from Seattle to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Avianca deal was found by Cheapflights users on 8/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:59 pmSEA - SAL
1 stop10h 01mMultiple Airlines
Wed 10/88:00 amSAL - SEA
1 stop11h 42mMultiple Airlines
Deal found 8/14$369
This eDestinos deal was found by Cheapflights users on 8/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:00 amSEA - SAL
1 stop11h 50mMultiple Airlines
Thu 9/115:35 pmSAL - SEA
1 stop29h 55mMultiple Airlines
Deal found 8/14$377
This Avianca deal was found by Cheapflights users on 8/12. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:59 pmSEA - SAL
1 stop10h 01mMultiple Airlines
Tue 10/288:00 amSAL - SEA
1 stop11h 57mMultiple Airlines
Deal found 8/12$378
This Avianca deal was found by Cheapflights users on 8/11. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:50 pmSEA - SAL
1 stop9h 25mMultiple Airlines
Thu 1/299:30 amSAL - SEA
1 stop9h 20mMultiple Airlines
Deal found 8/11$379
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/318:00 amSEA - SAL
2 stops12h 05mMultiple Airlines
Wed 9/176:40 pmSAL - SEA
1 stop26h 44mMultiple Airlines
Deal found 8/14$383
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:00 amSEA - SAL
1 stop13h 55mMultiple Airlines
Thu 9/115:35 pmSAL - SEA
1 stop16h 10mMultiple Airlines
Deal found 8/14$384
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 9/178:51 pmSEA - SAL
1 stop13h 44mAmerican Airlines
Tue 9/2312:35 pmSAL - SEA
1 stop12h 24mAmerican Airlines
Deal found 8/14$386
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/238:51 pmSEA - SAL
1 stop13h 44mAmerican Airlines
Wed 10/82:30 pmSAL - SEA
2 stops20h 19mAmerican Airlines
Deal found 8/14$398
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:12 amSEA - SAL
2 stops32h 48mMultiple Airlines
Thu 9/1810:55 pmSAL - SEA
1 stop21h 59mMultiple Airlines
Deal found 8/14$400
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:00 amSEA - SAL
2 stops13h 05mMultiple Airlines
Sat 9/1310:55 pmSAL - SEA
1 stop16h 44mMultiple Airlines
Deal found 8/14$404
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2010:55 pmSEA - SAL
1 stop30h 35mMultiple Airlines
Fri 10/319:05 amSAL - SEA
1 stop14h 06mMultiple Airlines
Deal found 8/13$409

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to San Salvador 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 August 14, 2025.
Use the filters below to find and compare flights from Seattle to San Salvador that are best for you.

Fly from

Seattle

Fly to

San Salvador

Route

Depart

Return

Price

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Tue 9/23

7:59 pm-7:00 am

1 stop10h 01m

San Salvador El Salvador Intl

Wed 10/8

8:00 am-6:42 pm

1 stop11h 42m

$369

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 9/4

7:00 am-7:50 pm

1 stop11h 50m

San Salvador El Salvador Intl

Thu 9/11

5:35 pm-10:30 pm

1 stop29h 55m

$377

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Wed 9/17

7:59 pm-7:00 am

1 stop10h 01m

San Salvador El Salvador Intl

Tue 9/23

8:00 am-6:25 pm

1 stop11h 25m

$378

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Tue 10/21

7:59 pm-7:00 am

1 stop10h 01m

San Salvador El Salvador Intl

Tue 10/28

8:00 am-6:57 pm

1 stop11h 57m

$378

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 11/13

6:50 pm-6:15 am

1 stop9h 25m

San Salvador El Salvador Intl

Thu 1/29

9:30 am-4:50 pm

1 stop9h 20m

$379

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Tue 9/2

8:00 am-7:50 pm

1 stop10h 50m

San Salvador El Salvador Intl

Tue 9/16

6:40 pm-4:58 pm

1 stop23h 18m

$383

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Sun 8/31

8:00 am-9:05 pm

2 stops12h 05m

San Salvador El Salvador Intl

Wed 9/17

6:40 pm-8:24 pm

1 stop26h 44m

$383

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Wed 8/27

7:00 am-9:55 pm

1 stop13h 55m

San Salvador El Salvador Intl

Thu 9/11

5:35 pm-8:45 am

1 stop16h 10m

$384

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 9/11

11:25 am-5:05 am

1 stop16h 40m

San Salvador El Salvador Intl

Thu 9/18

6:40 pm-10:58 am

1 stop17h 18m

$384

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 8/28

8:04 am-9:05 pm

1 stop12h 01m

San Salvador El Salvador Intl

Thu 9/18

6:40 pm-2:52 pm

1 stop21h 12m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 17 results
1
2

Best time to book a flight from Seattle to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador from Seattle 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 Seattle to San Salvador

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Salvador. Price data was last updated on August 8, 2025.

The best time to book flights from Seattle to San Salvador is 26 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 Seattle to San Salvador?

Currently, September is the cheapest month in which you can book a flight from Seattle to San Salvador (average of $260). Flying from Seattle to San Salvador in December is currently the most expensive (average of $588). 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 SEA to SAL?

Find hourly flight availability from Seattle to San Salvador. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to San Salvador in the morning. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the afternoon.

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

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

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

How much does it cost to fly round-trip from Seattle to San Salvador?

What’s the top layover airport for flights from Seattle to San Salvador?

Share of 1-stop round-trip flights from Seattle to San Salvador chosen by Cheapflights users in the past 12 months, using the same layover each way.

San Francisco (SFO) – chosen by Cheapflights users on 56% of 1-stop itineraries from Seattle to San Salvador on Cheapflights.

What’s the cheapest layover airport for flights from Seattle to San Salvador?

Average round-trip fare for 1-stop flights from Seattle to San Salvador, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Houston (IAH) is the most affordable 1-stop option, with an average round-trip price of $524.

What’s the fastest layover option from Seattle to San Salvador?

Shortest average travel time for 1-stop one-way flights from Seattle to San Salvador, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 10h 39m.

Which airport typically offers the quickest layover for flights from Seattle to San Salvador?

Average layover duration for 1-stop one-way flights from Seattle to San Salvador, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 2h 37m.

Reviews of airlines servicing San Salvador

Get insights into the airlines that provide service to San Salvador. 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 San Salvador. Reviews last updated August 14, 2025.
Read through reviews of airlines operating flights from Seattle to San Salvador, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Avianca
6.7
Okay
2,401 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

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

    Avianca, at $355, was found to be the cheapest airline from Seattle to San Salvador.Alternate airlines to your destination round-trip include Delta and United Airlines. These flights start at 44% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to San Salvador 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 Seattle to San Salvador?

    Currently, September is the cheapest month in which you can book a flight from Seattle to San Salvador (average of $260). Flying from Seattle to San Salvador in December is currently the most expensive (average of $588). 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 Salvador?

Book flights to San Salvador if you plan to visit one of these locations
Sonsonate
El Cuco
La Libertad
Acajutla

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to San Salvador

See prices for flight routes from nearby airports that may be better suited for you.
Portland to San Salvador flights
Pasco to San Salvador flights

Top 4 airlines flying from Seattle to San Salvador

Discover the top 4 airlines that operate flights from Seattle to San Salvador. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$355Average$911FlexibilityNo cancel feeOn-time71%
DeltaCheapest$379Average$569FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$473Average$619FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$528Average$806FlexibilityNo cancel feeOn-time71%

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