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 1/21. 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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Everything you should know

Cheapest round-trip
$338
Overall average: $538
Avianca
Wed 1/14Tue 1/27
SEA - SAL • 1 stop
Cheapest one-way
$149
Typical prices: $244-$428
Multiple Airlines
Wed 1/21
SEA - SAL • 1 stop
When to travel
January
Cheapest • 15% 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

Wed, Jan 14 - Tue, Jan 27
Avianca Logo
8:10 am - 9:55 pm
SEA
-
SAL
11h 45m1 stop
Avianca Logo
9:35 am - 8:57 pm
SAL
-
SEA
13h 22m1 stop
$338Avianca
Sun, Jan 18 - Sun, May 3
Multiple Airlines Logo
8:30 am - 9:55 pm
SEA
-
SAL
11h 25m1 stop
Multiple Airlines Logo
8:30 pm - 9:58 am
SAL
-
SEA
14h 28m1 stop
$341Multiple Airlines
Thu, Jan 15 - Sun, Jan 25
Multiple Airlines Logo
9:52 am - 8:50 pm
SEA
-
SAL
8h 58m1 stop
Multiple Airlines Logo
5:15 pm - 8:57 pm
SAL
-
SEA
29h 42m1 stop
$347Multiple Airlines
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
2:40 pm - 9:55 am
SEA
-
SAL
17h 15m1 stop
Multiple Airlines Logo
10:05 pm - 8:57 pm
SAL
-
SEA
24h 52m1 stop
$351Multiple Airlines
Fri, Jan 9 - Sun, Jan 18
Avianca Logo
8:10 am - 7:55 am
SEA
-
SAL
21h 45m2 stops
Avianca Logo
9:35 am - 8:57 pm
SAL
-
SEA
13h 22m1 stop
$362Avianca
Thu, Apr 2 - Sun, Apr 12
Multiple Airlines Logo
9:40 pm - 7:30 pm
SEA
-
SAL
20h 50m1 stop
Multiple Airlines Logo
10:05 pm - 10:02 pm
SAL
-
SEA
24h 57m1 stop
$366Multiple Airlines
Thu, Jan 15 - Sun, Jan 25
Multiple Airlines Logo
9:52 am - 8:50 pm
SEA
-
SAL
8h 58m1 stop
Multiple Airlines Logo
5:15 pm - 8:57 pm
SAL
-
SEA
29h 42m2 stops
$368Multiple Airlines
Wed, Jan 21 - Wed, Feb 4
Avianca Logo
8:10 am - 7:55 pm
SEA
-
SAL
33h 45m1 stop
Avianca Logo
9:35 am - 8:57 pm
SAL
-
SEA
13h 22m1 stop
$376Avianca
Mon, Jan 26 - Wed, Jan 28
Avianca Logo
8:10 am - 6:30 am
SEA
-
SAL
20h 20m1 stop
Avianca Logo
9:35 am - 8:57 pm
SAL
-
SEA
13h 22m1 stop
$378Avianca
Fri, Jan 9 - Sun, Jan 18
Avianca Logo
8:10 am - 9:55 pm
SEA
-
SAL
11h 45m1 stop
Avianca Logo
9:35 am - 8:57 pm
SAL
-
SEA
13h 22m1 stop
$385Avianca
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 January, where tickets cost $538 (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 $639 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 18 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$149
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 87% 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 $338 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 $613 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 $699 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 9114 reviews
6.6Food
8.1Crew
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

6.0 GoodMarco, Dec 2025
ORD - ORF
Read more United Airlines reviews

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Sat next to a one year old. She crawled all over the place and made me laugh.

Not United Airlines' fault. It's ORL airport's fault.

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

Gate agent at Frankfurt was terrible. She denied PRE boarding even as it was printed on the boarding pass. Refused to look at the boarding pass and literally shouting for no reason. Frankfurt airport has horrible and rude staff who avoids trying to answer any question at all. Overall, horrible experience.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

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

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

I don’t know who decides what food to serve on these flights but I would be so embarrassed if I served this to anyone and call it food…

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

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

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

Here we have another airline flying to Guatemala but doesn't have a plus or a less, just in the middle. Why? Well, first we don't have even free water Movie selection is poor Seats don't recline in some places Food selection is carb based Forgot to mention, customer service on the web is the worst. Good things; Very reliable on schedule Kind crew

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

I like the crew they're very friendly. I don't like. on five hour flight they not offered snacks. Any drink. Not even coffee

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

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

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

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

Information on your arrival and departure airports