SEA - SAL

$323 Find Cheap Flights from Seattle to San Salvador - Compare and Save

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 7/10. 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

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Everything you should know

Cheapest round-trip
$619
Typical prices: $637-$719
Multiple Airlines
Fri 9/18Wed 9/30
SEA - SAL • 1 stop
Cheapest one-way
$323
Typical prices: $364-$462
Multiple Airlines
Fri 7/10
SEA - SAL • 2 stops
Top airlines
Cheapest • from $723 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and San Salvador. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $378 (round-trip)
Shortest trip • 10h 43m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 12% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 40% price drop
Most popular
Good to know
Good to know
+1
+1
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Good to know
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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

Fri, Sep 18 - Wed, Sep 30
Multiple Airlines Logo
5:44 pm - 6:30 am
SEA
-
SAL
11h 46m
1 stop
Multiple Airlines Logo
7:35 am - 9:54 pm
SAL
-
SEA
15h 19m
1 stop
$619Multiple Airlines
Mon, Oct 5 - Mon, Oct 12
Multiple Airlines Logo
9:16 pm - 5:52 am
SEA
-
SAL
31h 36m
2 stops
Multiple Airlines Logo
5:16 am - 6:26 pm
SAL
-
SEA
14h 10m
1 stop
$621Multiple Airlines
Mon, Oct 5 - Mon, Oct 12
Multiple Airlines Logo
11:06 am - 5:52 am
SEA
-
SAL
17h 46m
1 stop
Multiple Airlines Logo
5:16 am - 6:26 pm
SAL
-
SEA
14h 10m
1 stop
$628Multiple Airlines
Mon, Aug 10 - Mon, Aug 17
Multiple Airlines Logo
8:53 pm - 4:42 pm
SEA
-
SAL
18h 49m
2 stops
Multiple Airlines Logo
6:11 pm - 5:51 pm
SAL
-
SEA
24h 40m
1 stop
$646Multiple Airlines
Sun, Aug 23 - Sat, Aug 29
Multiple Airlines Logo
12:35 pm - 7:05 pm
SEA
-
SAL
29h 30m
2 stops
Multiple Airlines Logo
6:11 pm - 5:51 pm
SAL
-
SEA
24h 40m
1 stop
$649Multiple Airlines
Fri, Aug 7 - Sun, Aug 16
Multiple Airlines Logo
7:26 am - 9:05 pm
SEA
-
SAL
12h 39m
1 stop
Multiple Airlines Logo
11:20 pm - 11:15 am
SAL
-
SEA
12h 55m
1 stop
$651Multiple Airlines
Wed, Sep 9 - Mon, Sep 14
Multiple Airlines Logo
2:15 pm - 6:15 am
SEA
-
SAL
15h 00m
1 stop
Multiple Airlines Logo
8:00 am - 6:26 pm
SAL
-
SEA
11h 26m
1 stop
$654Multiple Airlines
Fri, Sep 18 - Wed, Sep 30
Multiple Airlines Logo
7:41 pm - 4:42 pm
SEA
-
SAL
20h 01m
2 stops
Multiple Airlines Logo
6:11 pm - 6:26 pm
SAL
-
SEA
25h 15m
1 stop
$656Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
10:34 am - 5:52 am
SEA
-
SAL
18h 18m
1 stop
Multiple Airlines Logo
5:32 am - 7:59 pm
SAL
-
SEA
15h 27m
2 stops
$663Multiple Airlines
Thu, Aug 20 - Thu, Sep 3
Multiple Airlines Logo
8:10 pm - 7:00 am
SEA
-
SAL
9h 50m
1 stop
Multiple Airlines Logo
7:35 am - 6:11 pm
SAL
-
SEA
11h 36m
1 stop
$664Multiple Airlines
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.

How much is a round-trip flight from Seattle to San Salvador?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to San Salvador departing in September.

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 January, where tickets cost $439 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $1,174 and $893 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 2 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$323
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly with an average 61% 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 5 days, the lowest price for a flight from Seattle to San Salvador was $323 for a one-way ticket and $619 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 $806 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 $743 and an overall rating of 7.1.

  • 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 9927 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
6.7Food
Airline reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

4.0 OkayOlivia, Jun 2026
SEA - SFO
Read more United Airlines reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

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

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

We had selected seats in the app that were a 2x2 format in the middle of the plane. Our seats when we got on the plane had been moved to the back rows in a 3x1 format. What’s the point of paying up for tickets that allow seat selection if the airline will just change them?

The new Airbus A231neo has neat tech but the economy seats are so tight together that I always had my shoulders against one passenger or the other. I was very miffed that Basic Economy REQUIRES check-in of bags other than your personal carry-on; if you want to offer low-cost airline prices and then add services for a fee, just let me carry on my duffel. Hell, I could have put my carry on IN the duffel and called it a day but the gate agent would not let me; I ended up paying $40 for the risk of losing my bag. Not the worst flight, but far from the best.

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

Dreadful experience. Our flight was delayed more than 8 hours due to a maintenance issue and the assistance from rebooking was poor. I was travelling with a bad knee and needed assistance waited in one place more than 3 hours before someone came with a wheelchair. The woman next to me was a 91 year old great grandmother who had waited more than 4 hours. There were moments of support from the staff but it appeared as they were going against the direction of management. It was apathy, lack of ownership and dismissive responses with small moments of kindness and understanding typically from grey haired, female, veteran staff..

Everything was great except it became so hot on the plane I couldn’t sleep on my red eye flight. It didn’t really cool down till we started descending.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

Experience was fine. Seats were cramped, and we had to wait for repairs before we could take of. Even though the door remained open, we were warned that leaving the plane could cause difficulty trying to fly out later. Staff was pleasant, and climate control was fortunately working. We had trouble at the DFW terminal, but I don't think that was AA's fault.

This flight was fine but had no time to breathe as the connection was late from Sea to ORD.. Super stressful. If we checked bags, the trip would have been very distressed.

Boarding, Seating, Flight Attendants, flight was okay. My seat was uncomfortable.

The worst experience I've ever had because the "people" @ Avianca wouldn't let me fly because they said I needed a round trip ticket

Staff are the rudest in the industry … awful customer service … will never fly Avianca again

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

There isn't much space in-between seats and even water needs to be paid for during the flight.

We were not aware carry-on bags cost extra until we arrived at the airport so, we were charged $240.00 for two small carry- on bags! There was a substantial fee for drinks and snacks. No wifi, or other entertainment was available. Waiting areas were crowded and uncomfortable.

Ok, but these people don’t give you nothing no snack no water

No water for a 5 hour flight entertainment not working seats with little room for knees when person in front of me reclined kept bumping my knees.

I don't think anyone actually reads these comments, so I won't spend much time on this submission. If you want to talk, you know how to reach me. The D/FW manager of Avianca (self-identified), Juan Calderon, insisted I buy an onward ticket from San Salvador even though I have diplomatic status in El Salvador and live here. It cost me $1,393 and Mr Calderon would not let me make the ticked flexible so I could get a refund. He went out of his way to be rude to me. He gave me seat 32K -- windowless window seat in the last row and did not offer to let me upgrade even though there were plenty of seats. I have flown well over a million miles in my life and this is the worst experience I have ever had. I would like a refund on the ticket I was forced to buy. Just awful!

There was no food or drink service, couldn’t even get a glass of water for free. It was a long and expensive flight to not offer food or beverage on the plane.

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

Information on your arrival and departure airports