SEA - SAL

$149 Find Cheap Flights from Seattle to San Salvador

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to San Salvador departing on 1/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Salvador

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Salvador, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Salvador, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$430
Overall average: $613
Avianca
sex 5/1sáb 5/9
SEA - SAL • 1 stop
Cheapest one-way
$151
Typical prices: $245-$428
Avianca
sáb 1/17
SEA - SAL • 1 stop
Top airlines
Avianca
Cheapest • from $430 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 14% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Salvador!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to San Salvador (SEA-SAL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to San Salvador that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to San Salvador

sex, mai 1 - sáb, mai 9
Avianca Logo
12:45 pm - 8:00 amSEA-SAL
18h 15m1 stop
Avianca Logo
8:00 am - 10:18 pmSAL-SEA
15h 18m1 stop
$430Avianca
Find Deal
seg, jan 19 - sex, fev 6
Multiple Airlines Logo
4:19 pm - 7:05 pmSEA-SAL
24h 46m2 stops
Multiple Airlines Logo
5:30 am - 5:12 pmSAL-SEA
13h 42m2 stops
$431Multiple Airlines
Find Deal
sex, jan 30 - dom, fev 8
Multiple Airlines Logo
8:10 am - 7:55 amSEA-SAL
21h 45m2 stops
Multiple Airlines Logo
12:15 pm - 2:57 pmSAL-SEA
28h 42m3 stops
$433Multiple Airlines
Find Deal
dom, mar 29 - sáb, abr 11
Multiple Airlines Logo
10:55 am - 5:55 amSEA-SAL
18h 00m1 stop
Multiple Airlines Logo
10:05 pm - 9:54 amSAL-SEA
12h 49m1 stop
$437Multiple Airlines
Find Deal
sáb, mai 2 - dom, mai 10
Avianca Logo
5:00 pm - 9:05 pmSEA-SAL
27h 05m2 stops
Avianca Logo
5:30 am - 1:58 pmSAL-SEA
33h 28m2 stops
$439Avianca
Find Deal
dom, jan 11 - sáb, jan 31
Multiple Airlines Logo
8:30 am - 7:55 amSEA-SAL
21h 25m2 stops
Multiple Airlines Logo
5:35 pm - 10:26 amSAL-SEA
18h 51m2 stops
$444Multiple Airlines
Find Deal
ter, jan 20 - ter, jan 27
Multiple Airlines Logo
7:28 pm - 10:28 amSEA-SAL
13h 00m2 stops
Multiple Airlines Logo
10:00 am - 8:56 pmSAL-SEA
12h 56m1 stop
$446Multiple Airlines
Find Deal
sex, mai 1 - sáb, mai 9
Avianca Logo
6:30 am - 9:05 pmSEA-SAL
13h 35m2 stops
Avianca Logo
8:00 am - 10:18 pmSAL-SEA
15h 18m1 stop
$452Avianca
Find Deal
seg, jan 19 - qui, jan 22
Multiple Airlines Logo
5:43 pm - 7:00 amSEA-SAL
11h 17m1 stop
Multiple Airlines Logo
10:00 am - 8:56 pmSAL-SEA
12h 56m1 stop
$458Multiple Airlines
Find Deal
seg, dez 8 - qua, dez 17
Avianca Logo
8:10 am - 8:05 amSEA-SAL
21h 55m1 stop
Avianca Logo
7:45 am - 6:28 pmSAL-SEA
12h 43m1 stop
$459Avianca
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to San Salvador flights

Get data-powered insights and trends into flights from Seattle to San Salvador to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to San Salvador?

The average price of all round-trip flights from Seattle to San Salvador clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to San Salvador on a Tuesday and more expensive on a Saturday. On your return trip to Seattle, you should consider flying back on a Tuesday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to San Salvador, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to San Salvador is September, where tickets cost $552 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $1,191 and $657 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to San Salvador, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to San Salvador, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 1 week before departure.

Good to know

Low seasonSeptember
Cheapest flight$151
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 84% increase in price.
Flight from Seattle to San Salvador

When to book flights from Seattle to San Salvador

Are your dates flexible? Find out the best times to travel from Seattle to San Salvador based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to San Salvador

  • What is the cheapest flight from Seattle to San Salvador?

    In the last 3 days, the lowest price for a flight from Seattle to San Salvador was $149 for a one-way ticket and $430 for a round-trip.

  • Do I need a passport to fly between Seattle and San Salvador?

    Yes

  • Which airports will I be using when flying from Seattle to San Salvador?

    When flying out of Seattle you will be using Seattle/Tacoma Intl. You will be landing at San Salvador, also known as San Salvador El Salvador Intl.

  • Which aircraft models fly most regularly from Seattle to San Salvador?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to San Salvador?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and San Salvador, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to San Salvador, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to San Salvador are United Airlines and American Airlines. With an average price for the route of $619 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $701 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Seattle to San Salvador?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to San Salvador.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to San Salvador?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Salvador from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to San Salvador?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Salvador with an airline and back to Seattle with another airline. Booking your flights between Seattle and SAL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to San Salvador?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Salvador from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Seattle to San Salvador

 
See real verified KAYAK customer reviews for airlines flying from Seattle to San Salvador. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to San Salvador? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9016 reviews
7.7Boarding
7.3Comfort
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

10.0 ExcellentDavid, Nov 2025IAD - BTV
Read more United Airlines reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

Everything was good The connects, with no blame to crew. Or pilots. I understand they are short staffed. Everything went well for me. I'll be using you guys again in May if not sooner.

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

We were very rushed by a staff member at the gate when transferring from American Airlines to Fijian. Then the plane stayed put for ages anyhow! The plane was delayed and my bag sent to San Francisco instead of Fiji

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

We loved the steward on the plane. He made the night enjoyable

I couldnt recline the seat. Other than that crew was very attentive and helpful. Thsnk you

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

This low cost airline looks and fells more like a local bus. In a 6 hour flight not being able to recline a seat is torture. The only thing available with no charge is a glass of water provided by, mostly, rude staff. Our luggage didn’t arrive

Horrible experience. Flight cancelled. Arrived at destination 12 hs later. No one gave us an answer or any information. Very very poor service. We won’t ever travel again with Avianca

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

The chicken that was served in business class was cold!

Everything you need to know for your flight from Seattle to San Salvador

Information on your arrival and departure airports