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$149+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAL
Jan 26 — Feb 21
Mon 1/26
Mon 2/2
1 adult, Economy
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Find cheap flights from Seattle to San Salvador with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Salvador El Salvador Intl are usually found in January or October, booked 54 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap 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 December 27, 2025.

This Trip.com deal was found by Cheapflights users on 12/25. 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.
Tue 12/3010:14 pmSEA - SAL
2 stops31h 41mMultiple Airlines
Thu 1/158:25 pmSAL - SEA
1 stop26h 43mMultiple Airlines
Deal found 12/25$341
This eDestinos deal was found by Cheapflights users on 12/26. 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.
Tue 12/3011:26 pmSEA - SAL
1 stop18h 14mMultiple Airlines
Mon 1/198:25 pmSAL - SEA
1 stop26h 32mMultiple Airlines
Deal found 12/26$347
This Trip.com deal was found by Cheapflights users on 12/25. 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.
Mon 12/298:16 amSEA - SAL
1 stop22h 39mMultiple Airlines
Wed 1/148:25 pmSAL - SEA
1 stop26h 43mMultiple Airlines
Deal found 12/25$428
This Trip.com deal was found by Cheapflights users on 12/25. 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.
Mon 12/298:16 amSEA - SAL
1 stop22h 39mMultiple Airlines
Sun 1/255:15 pmSAL - SEA
2 stops29h 42mMultiple Airlines
Deal found 12/25$429
This Expedia deal was found by Cheapflights users on 12/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:26 pmSEA - SAL
1 stop14h 34mMultiple Airlines
Thu 1/18:00 amSAL - SEA
1 stop16h 25mMultiple Airlines
Deal found 12/26$454
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 12/2911:26 pmSEA - SAL
1 stop18h 14mMultiple Airlines
Mon 1/1910:05 pmSAL - SEA
1 stop24h 52mMultiple Airlines
Deal found 12/26$646
This eDestinos deal was found by Cheapflights users on 12/25. 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.
Sun 12/2811:26 pmSEA - SAL
1 stop14h 34mMultiple Airlines
Sun 1/259:35 amSAL - SEA
1 stop13h 22mMultiple Airlines
Deal found 12/25$647

Find 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 December 27, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$321
(Cheapflightsfares)

One-way from

$149
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$1,191
Provider with most accurate pricing for Seattle/Tacoma Intl-San Salvador El Salvador Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Salvador El Salvador Intl flights.
Search Deals
From Seattle/Tacoma Intl to San Salvador El Salvador Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to San Salvador El Salvador Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($143 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 27, 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

Wed 1/14

8:10 am-9:55 pm

1 stop11h 45m

San Salvador El Salvador Intl

Tue 1/27

9:35 am-8:57 pm

1 stop13h 22m

$338

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 1/22

8:10 am-9:55 pm

1 stop11h 45m

San Salvador El Salvador Intl

Thu 1/29

9:35 am-8:57 pm

1 stop13h 22m

$338

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Sun 1/18

8:30 am-9:55 pm

1 stop11h 25m

San Salvador El Salvador Intl

Sun 5/3

8:30 pm-9:58 am

1 stop14h 28m

$341

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Tue 12/30

11:26 pm-7:40 pm

1 stop18h 14m

San Salvador El Salvador Intl

Mon 1/19

8:25 pm-8:57 pm

1 stop26h 32m

$347

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Mon 2/2

2:40 pm-9:55 am

1 stop17h 15m

San Salvador El Salvador Intl

Mon 2/9

10:05 pm-8:57 pm

1 stop24h 52m

$351

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 1/22

8:10 am-9:55 pm

1 stop11h 45m

San Salvador El Salvador Intl

Thu 1/29

5:35 pm-10:26 am

2 stops18h 51m

$351

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Fri 1/9

8:10 am-7:55 am

2 stops21h 45m

San Salvador El Salvador Intl

Sun 1/18

9:35 am-8:57 pm

1 stop13h 22m

$362

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Sat 2/7

8:30 am-9:55 pm

1 stop11h 25m

San Salvador El Salvador Intl

Sat 2/14

8:00 am-9:52 pm

1 stop15h 52m

$367

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Wed 1/21

8:10 am-7:55 pm

1 stop33h 45m

San Salvador El Salvador Intl

Wed 2/4

9:35 am-8:57 pm

1 stop13h 22m

$376

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Mon 1/26

8:10 am-9:55 pm

1 stop11h 45m

San Salvador El Salvador Intl

Wed 1/28

9:35 am-8:57 pm

1 stop13h 22m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 18 results
1
2

Compare providers for flights from Seattle to San Salvador

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to San Salvador in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-San Salvador flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Seattle-San Salvador flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Seattle-San Salvador flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-San Salvador flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San Salvador flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 19, 2025.

The best time to book flights from Seattle to San Salvador is 54 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, January is the cheapest month in which you can book a flight from Seattle to San Salvador (average of $320). Flying from Seattle to San Salvador in December is currently the most expensive (average of $615). 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 December 27, 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 17% on your trip compared to booking a flight in the afternoon.

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 December 27, 2025.
Read through reviews of airlines operating flights from Seattle to San Salvador, such as United Airlines, American Airlines, and Avianca. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,114 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,114 reviews
United Airlines
7.4
Good
9,114 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,066 reviews
United Airlines
7.4
Good
9,114 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Avianca
6.6
Okay
2,489 reviews
United Airlines
7.4
Good
9,114 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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.

  • How long is the flight from Seattle to San Salvador?

    There are many flights that can get you from Seattle to San Salvador in 11h 45m. Fly via Avianca to get the fastest option. Airlines will cover a distance of 3027 mi.

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

    Avianca, at $320, was found to be the cheapest airline from Seattle to San Salvador.Alternate airlines to your destination round-trip include American Airlines and United Airlines. These flights start at 49% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Seattle to San Salvador are Avianca ($151), Delta ($244), and United Airlines ($244).

  • 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, January is the cheapest month in which you can book a flight from Seattle to San Salvador (average of $320). Flying from Seattle to San Salvador in December is currently the most expensive (average of $615). 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
Acajutla
Sonsonate
El Cuco
La Libertad

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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 3 airlines flying from Seattle to San Salvador

Discover the top 3 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 December 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$320Average$510FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$439Average$693FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$470Average$611FlexibilityNo cancel feeOn-time69%

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