What is the cheapest day to fly from Seattle to Kos?

Travelers seeking maximum savings on their Seattle to Kos flight should consider departing on Wednesday at noon when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Seattle to Kos?

Travelers have found that booking a Monday departure is the best way to save up to 6% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest time of day to fly from SEA to KGS?

When flying from Seattle to Kos, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 4% versus a flight at noon.

Can I find deals for flights from Seattle to Kos that include hotel bookings?

Yes. In addition to deals on Seattle to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Kos?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kos.

Can I find deals for business class flights from Seattle to Kos?

Yes. Cheapflights offers flight deals from Seattle to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$965+ Flights from Seattle to Kos

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Seattle to Kos with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Kos

Round-trip from	$965 (Mytrip)

From Seattle/Tacoma Intl to Kos

Search Deals

Find flight deals from Seattle to Kos

Best flights from Seattle to Kos
Discover carefully curated flight deals from Seattle to Kos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2024.

Mon 2/32:00 pmSEA - KGS

2 stops21h 15mMultiple Airlines

Mon 2/109:45 pmKGS - SEA

2 stops25h 35mMultiple Airlines

Deal found 12/20

$965

Last-minute flights from Seattle to Kos
Discover last-minute flight deals from Seattle to Kos. Data last updated December 21, 2024 and is based on user searches.

Mon 1/202:00 pmSEA - KGS

2 stops32h 05mMultiple Airlines

Sun 1/2610:35 pmKGS - SEA

2 stops48h 45mMultiple Airlines

Deal found 12/20

$972

Find flights from Seattle to Kos within your budget

Fly from

Fly to

Route

Depart

Return

Price

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Mon 2/3

2:00 pm-9:15 pm

2 stops21h 15m

Kos

Mon 2/10

9:45 pm-1:20 pm

2 stops25h 35m

$965

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Best time to book a flight from Seattle to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Seattle with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Kos

Get recent, data-driven insights about flights from Seattle to Kos including ideal travel times, pricing trends, and more.

Rainfall in Kos by month

In terms of precipitation, rainfall in Kos ranges from 0.1 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. July is typically the driest time to visit Kos when rainfall is around 0.1 in.

Temperature in Kos by month

If weather is an important factor for your trip to Kos, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 50.0 F).

Related info for your journey

Can I find deals for flights from Seattle to Kos that include hotel bookings?
Yes. In addition to deals on Seattle to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Kos?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kos.
Can I find deals for business class flights from Seattle to Kos?
Yes. Cheapflights offers flight deals from Seattle to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to Kos

Seattle to Santorini flights

Seattle to Rhodes flights

Seattle to Naxos flights

Seattle to Paleochori flights

Seattle to Parikia flights

Seattle to Karpathos flights

Seattle to Mykonos flights

Portland to Santorini flights

Top airline flying from Seattle to Kos

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$1,070	Average$1,183	FlexibilityNo cancel fee	On-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.