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$122+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAL
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
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 40 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$286
(Avianca)

One-way from

$122
(Expedia)

Popular in

December

Cheapest in

February

Average price

$552
Provider with most accurate pricing for Seattle/Tacoma Intl-San Salvador El Salvador Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Salvador El Salvador Intl flights.
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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. 20% potential increase in price ($163 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 29, 2025.

This eDestinos deal was found by Cheapflights users on 9/27. 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.
Wed 10/2910:05 amSEA - SAL
1 stop22h 18mMultiple Airlines
Wed 11/1211:19 pmSAL - SEA
1 stop25h 31mMultiple Airlines
Deal found 9/27$394
This Cheapflightsfares deal was found by Cheapflights users on 9/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:35 amSEA - SAL
1 stop12h 15mAvianca
Fri 10/106:40 pmSAL - SEA
1 stop18h 16mAvianca
Deal found 9/27$402
This Trip.com deal was found by Cheapflights users on 9/28. 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 10/262:59 pmSEA - SAL
1 stop15h 01mMultiple Airlines
Sun 11/26:30 pmSAL - SEA
1 stop17h 55mMultiple Airlines
Deal found 9/28$412
This eDestinos deal was found by Cheapflights users on 9/27. 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 10/288:44 amSEA - SAL
1 stop12h 11mMultiple Airlines
Wed 11/128:05 amSAL - SEA
1 stop14h 08mMultiple Airlines
Deal found 9/27$433
This Trip.com deal was found by Cheapflights users on 9/27. 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 10/136:35 amSEA - SAL
1 stop12h 15mMultiple Airlines
Mon 10/207:30 pmSAL - SEA
1 stop15h 59mMultiple Airlines
Deal found 9/27$447
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Wed 12/310:26 pmSEA - SAL
2 stops36h 26mMultiple Airlines
Thu 12/113:03 pmSAL - SEA
1 stop21h 49mMultiple Airlines
Deal found 9/28$454
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Wed 12/310:26 pmSEA - SAL
1 stop13h 32mMultiple Airlines
Tue 12/93:03 pmSAL - SEA
1 stop21h 49mMultiple Airlines
Deal found 9/28$456
This Trip.com deal was found by Cheapflights users on 9/29. 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 10/176:35 amSEA - SAL
1 stop23h 25mMultiple Airlines
Sun 11/26:30 pmSAL - SEA
1 stop17h 55mMultiple Airlines
Deal found 9/29$458
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 11/37:00 amSEA - SAL
1 stop20h 55mMultiple Airlines
Mon 11/177:30 pmSAL - SEA
1 stop17h 10mMultiple Airlines
Deal found 9/27$460
This Trip.com deal was found by Cheapflights users on 9/29. 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 11/512:41 pmSEA - SAL
1 stop16h 19mMultiple Airlines
Fri 11/1410:40 pmSAL - SEA
1 stop13h 45mMultiple Airlines
Deal found 9/29$464
This FlightHub deal was found by Cheapflights users on 9/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:35 amSEA - SAL
1 stop12h 15mAvianca
Fri 10/106:40 pmSAL - SEA
1 stop18h 16mAvianca
Deal found 9/28$465

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 September 29, 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

Thu 11/13

11:59 pm-3:24 pm

1 stop13h 25m

San Salvador El Salvador Intl

Thu 11/20

6:55 am-6:10 pm

2 stops13h 15m

$530

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Mon 11/10

11:59 pm-3:24 pm

1 stop13h 25m

San Salvador El Salvador Intl

Tue 11/18

3:00 am-9:13 pm

2 stops20h 13m

$530

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Sun 1/18

7:00 am-9:19 pm

1 stop12h 19m

San Salvador El Salvador Intl

Fri 1/23

3:00 am-4:29 pm

1 stop15h 29m

$530

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Tue 11/11

11:59 pm-3:24 pm

1 stop13h 25m

San Salvador El Salvador Intl

Tue 11/18

3:00 am-9:13 pm

2 stops20h 13m

$530

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 11/13

11:59 pm-3:24 pm

1 stop13h 25m

San Salvador El Salvador Intl

Wed 1/28

3:00 am-9:12 pm

2 stops20h 12m

$530

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Sat 1/17

12:59 pm-5:25 am

1 stop14h 26m

$122

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Thu 1/15

9:00 pm-9:05 pm

1 stop22h 05m

$139

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Sun 10/26

7:57 pm-7:00 am

1 stop10h 03m

$211

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Fri 12/5

11:41 am-12:52 pm

2 stops23h 11m

$230

SeattleSan Salvador

SEA - SAL

SEASAL

Seattle/Tacoma Intl

Sat 10/25

5:55 pm-8:35 pm

2 stops25h 40m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

Showing 1-10 of 12 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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Salvador flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 September 26, 2025.

The best time to book flights from Seattle to San Salvador is 40 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 September 29, 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.

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 September 29, 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
7,964 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
8,924 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,964 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
2,444 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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.

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

    There are many flights that can get you from Seattle to San Salvador in 13h 25m. Fly via United Airlines 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?

    Delta, at $379, was found to be the cheapest airline from Seattle to San Salvador.Alternate airlines to your destination round-trip include Avianca and American Airlines. These flights start at 41% 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$379Average$569FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$397Average$575FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$439Average$748FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$471Average$619FlexibilityNo cancel feeOn-time69%

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