SEA - ALC

$341 Find Cheap Flights from Seattle to Alicante

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 Alicante departing on 1/15. 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 Alicante

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

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Everything you should know

Cheapest round-trip
$490
Overall average: $542
SWISS
Wed 1/7Wed 1/14
SEA - ALC • 2 stops
Cheapest one-way
$341
Multiple Airlines
Thu 1/15
SEA - ALC • 3 stops
Top airlines
Brussels Airlines
Cheapest • from $502 (round-trip)
KLM
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 42% price drop
July
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 Alicante!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Alicante (SEA-ALC)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Alicante 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 Alicante

Wed, Jan 7 - Wed, Jan 14
SWISS Logo
12:35 pm - 9:05 amSEA-ALC
35h 30m2 stops
SWISS Logo
1:15 pm - 10:43 pmALC-SEA
42h 28m2 stops
$490SWISS
Find Deal
Thu, Jan 22 - Mon, Jan 26
Brussels Airlines Logo
10:58 am - 12:15 pmSEA-ALC
16h 17m2 stops
Brussels Airlines Logo
1:05 pm - 6:14 pmALC-SEA
38h 09m2 stops
$502Brussels Airlines
Find Deal
Thu, Jan 22 - Mon, Jan 26
KLM Logo
3:10 pm - 6:00 pmSEA-ALC
17h 50m1 stop
KLM Logo
8:35 pm - 11:50 amALC-SEA
24h 15m1 stop
$532KLM
Find Deal
Wed, Jan 7 - Wed, Jan 14
KLM Logo
7:10 am - 5:55 pmSEA-ALC
25h 45m2 stops
KLM Logo
5:55 pm - 11:50 amALC-SEA
26h 55m1 stop
$534KLM
Find Deal
Thu, Jan 22 - Mon, Jan 26
KLM Logo
7:10 am - 9:25 amSEA-ALC
41h 15m2 stops
KLM Logo
4:05 pm - 11:50 amALC-SEA
28h 45m1 stop
$537KLM
Find Deal
Wed, Jan 7 - Wed, Jan 14
SWISS Logo
12:35 pm - 9:05 amSEA-ALC
35h 30m2 stops
SWISS Logo
1:15 pm - 10:43 pmALC-SEA
42h 28m2 stops
$590SWISS
Find Deal
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
2:35 pm - 6:25 pmSEA-ALC
18h 50m2 stops
Multiple Airlines Logo
6:50 pm - 5:00 pmALC-SEA
31h 10m3 stops
$656Multiple Airlines
Find Deal
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
3:10 pm - 10:10 amSEA-ALC
34h 00m3 stops
Multiple Airlines Logo
7:40 pm - 10:16 pmALC-SEA
35h 36m3 stops
$666Multiple Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
6:50 pm - 8:35 amSEA-ALC
28h 45m2 stops
American Airlines Logo
9:10 am - 11:42 pmALC-SEA
23h 32m2 stops
$729American Airlines
Find Deal
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
8:10 am - 12:30 amSEA-ALC
31h 20m2 stops
Multiple Airlines Logo
10:40 am - 12:10 pmALC-SEA
34h 30m3 stops
$732Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Alicante flights

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

What is the cheapest month to fly from Seattle to Alicante?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Alicante, 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 Alicante is January, where tickets cost $542 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,795 and $1,144 respectively.

Good to know

Low seasonSeptember
Cheapest flight$341
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 21% increase in price.
Flight from Seattle to Alicante

When to book flights from Seattle to Alicante

Are your dates flexible? Find out the best times to travel from Seattle to Alicante 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 Alicante

  • What is the cheapest flight from Seattle to Alicante?

    In the last 3 days, the lowest price for a flight from Seattle to Alicante was $341 for a one-way ticket and $490 for a round-trip.

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

    A passport is required to fly from Seattle to Alicante.

  • Which aircraft models fly most regularly from Seattle to Alicante?

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

  • Which airline alliances offer flights from Seattle to Alicante?

    SkyTeam is the only airline alliance operating flights between Seattle and Alicante.

  • Which is the best airline for flights from Seattle to Alicante, KLM or Icelandair?

    The two airlines most popular with KAYAK users for flights from Seattle to Alicante are KLM and Icelandair. With an average price for the route of $1,027 and an overall rating of 7.7, KLM is the most popular choice. Icelandair is also a great choice for the route, with an average price of $622 and an overall rating of 7.0.

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

    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 Alicante.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Alicante 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 Alicante?

    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 Alicante with an airline and back to Seattle with another airline. Booking your flights between Seattle and ALC 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 Alicante?

    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 Alicante 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 airlines flying from Seattle to Alicante

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Alicante. 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 Alicante? 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.
7.7
KLMOverall score based on 1422 reviews
7.2Food
7.1Entertainment
7.8Boarding
7.6Comfort
8.4Crew
Airline reviews

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

8.0 ExcellentKevin, Nov 2025AMS - BOD
Read more KLM reviews

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

Everything you need to know for your flight from Seattle to Alicante

Information on your arrival and departure airports