Cheap flights from Seattle to Kos from £279

Cheap flights from Seattle to Kos from £279

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Explore flight deals to Kos

3 stops
Mon, Apr 27
Seattle SEAKos KGS
£279
Search
3 stops
Mon, Apr 27
Seattle SEAKos KGS
£296
Search
3 stops
Mon, Apr 27
Seattle SEAKos KGS
£309
Search
3 stops
Mon, Apr 27
Seattle SEAKos KGS
£326
Search
3 stops
Fri, May 1
Seattle SEAKos KGS
£372
Search
2 stops
Mon, Apr 27
Seattle SEAKos KGS
£375
Search

Not happy with the results? Try some of our useful filters

Search by stops

Search by carrier

Search by price

Search by departure date

3 stops
Mon, Apr 27 – Mon, May 4
Seattle SEAKos KGS
£683
Search
3 stops
Mon, Apr 27 – Sat, May 2
Seattle SEAKos KGS
£687
Search
3 stops
Mon, Apr 27 – Sat, May 2
Seattle SEAKos KGS
£703
Search
3 stops
Mon, Apr 27 – Sat, May 2
Seattle SEAKos KGS
£703
Search
3 stops
Mon, Apr 27 – Mon, May 4
Seattle SEAKos KGS
£705
Search
2 stops
Mon, Apr 27 – Sat, May 2
Seattle SEAKos KGS
£750
Search

Not happy with the results? Try some of our useful filters

Search by stops

Search by carrier

Search by price

Search by departure date

How much do flights to Kos cost?

Cheapest one-way trip

£279

Cheapest round-trip

£683

Average round-trip

£739

Includes rare itinerary

Travel hack

Most popular airline

Aegean

Getting from Kos airport to the city center

The fastest options are taxi and private transfer, while budget travelers often choose public bus

Kos is served by Kos Island International Airport (KGS), located approximately 24 km southwest of Kos Town. This Greek island destination offers several airport transfers to city center options, including public buses, taxis, private transfers, and rental cars. Journey times typically range from 25 to 40 minutes depending on traffic and your chosen transport method. The airport serves as the main gateway to the island's beaches, historical sites, and vibrant town center.

Transport Option

Typical Time

Typical Cost

Frequency

Best For

35-50 min

€4-€5 (one-way fare to Kos Town)

limited service, aligned with flights (traffic dependent)

budget travelers

25-35 min

€35-€45 (metered fare; may vary by time of day)

on-demand at arrivals (traffic dependent)

convenience with luggage

25-35 min

€40-€60 (pre-booked; price per vehicle)

pre-booked (traffic dependent)

families and groups

25-35 min

€30-€70 (per day; varies by season and vehicle)

on-demand at airport desks (traffic dependent)

island exploration flexibility

30-50 min

€0-€20 (often included with accommodation or small fee)

aligned with guest arrivals (traffic dependent)

resort guests

Notes:

  • Prices in EUR; table created in 2025 and subject to change.
  • Public bus service is limited and may not operate for all flight arrivals, especially late evening flights.
  • Taxi fares are metered but confirm the approximate fare before departure.
  • Rental car is recommended for exploring the island beyond Kos Town.
  • We recommend checking official transport websites for your travel planning.

Updated: December 2025

Key info about flying to Kos

Depart from
Seattle–Tacoma International
Arrive to
Kos Island International
Average flights per week
400
Flight distance

Check-in for a flight from Seattle to Kos

NameCarrier codeIATA CodePassport needed during booking
AegeanAEEA3No
KLM Royal Dutch AirlinesKLMKLNo
RyanairRYRFRNo
SKY expressSEHGQNo
Air FranceAFRAFNo

Online check-in is not available for these airlines.

Weather in Kos

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January14°C11°C
February14°C11°C
March15°C12°C
April18°C14°C
May21°C18°C
June25°C21°C
July28°C24°C
August28°C24°C
September26°C22°C
October22°C19°C
November19°C16°C
December15°C13°C
Hottest Month
28°C
July
Coldest month
11°C
January
Sunny days
317
days per year

14 day forecast

Saturday
11 Apr
15°C13°C
18 Apr
88%
18°C16°C
Sunday
12 Apr
16°C12°C
19 Apr
19°C13°C
Monday
13 Apr
18°C13°C
20 Apr
17°C14°C
Tuesday
14 Apr
18°C16°C
21 Apr
83%
18°C15°C
Wednesday
15 Apr
20°C16°C
22 Apr
17°C15°C
Thursday
16 Apr
21°C18°C
23 Apr
85%
18°C14°C
Friday
17 Apr
87%
20°C16°C
24 Apr
18°C15°C
Travelers usually depart from Seattle–Tacoma International, Kenmore Air Harbor Seaplane Base, or Boeing Field when they travel from Seattle to Kos. The most popular airlines for this route are Aegean, KLM Royal Dutch Airlines, Ryanair, SKY express, and Air France. Seattle and Kos have 400 direct flights per week.

Frequently asked questions

What are the most popular routes to and from Seattle?
Travelers frequently search for route combinations, such as Seattle and London, Mexico City, New York, Las Vegas, Los Angeles, Guadalajara, Calgary, Edinburgh, Phoenix, San Francisco, Dallas, Chicago, Honolulu, San Diego, Ontario, Glasgow, Belfast, Denver, Istanbul, Kahului.
What are the most popular routes to and from Kos?
Travelers frequently search for route combinations, such as Kos and London, Manchester, Athens, Birmingham, Bristol, Tirana, Bucharest, Thessaloniki, Dublin, Copenhagen, Milan, Crete, Munich, Düsseldorf, Tallinn, Lisbon, Amsterdam, Vienna, Rome, Paris.
Which airports are there in Seattle?
Seattle is mainly served by Seattle–Tacoma International. But there are other airports nearby, including Kenmore Air Harbor Seaplane Base, Boeing Field.
What airports are near Seattle?
The main airport in Seattle is Seattle–Tacoma International. It is also served by Vancouver International, Portland International, Abbotsford International, Bellingham International, Paine Field Everett, Victoria Inner Harbour SPB, Vancouver Harbour Flight Centre, Yakima Air Terminal, Pangborn Memorial.
What airports are near Kos?
The main airport in Kos is Kos Island International. It is also served by Kos Island International, Kalymnos Island National.
Which airlines fly between Seattle and Kos?
Currently, you can fly between Seattle and Kos with Aegean, KLM Royal Dutch Airlines, Ryanair, SKY express, Air France.
When’s the best time to travel between Seattle and Kos?
If you don’t have specific dates for your trip between Seattle and Kos, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between Seattle and Kos?
Traveling between Seattle and Kos, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.
How many airports are there near Seattle?
There are a number of airports in and around Seattle. The main one is Seattle–Tacoma International and other nearby airports include Vancouver International, Portland International, Abbotsford International, Bellingham International, Paine Field Everett, Victoria Inner Harbour SPB, Vancouver Harbour Flight Centre, Yakima Air Terminal, Pangborn Memorial
How many airports are there near Kos?
What time do nonstop (direct) flights between Seattle and Kos depart?
What time do nonstop (direct) flights between Seattle and Kos arrive?
What time do flights between Seattle and Kos depart?
What time do flights between Seattle and Kos arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.

Search flightsSearch direct flights

Explore alternative trips

Flights from Seattle

Flights to Kos

Popular routes

The nearest countries with flights to Kos

Here is a list of countries people are flying from

Other destination countries from Seattle

Here is a list of countries people are flying to

Airports near Seattle

Airports near Kos

Download our app

Start your next adventure now. Download our app and explore cheap flights effortlessly!

Search flights
Find the best connection from Seattle to Kos

Search, compare, and book flights to get there.

Search flights