What is the cheapest airline that flies from Washington to Kos?

Emirates is the most popular carrier operating from Washington to Kos

When did momondo last update prices for flights from Washington to Kos Airport?

Prices for flights from Washington to Kos Airport were last updated today.

How old do you have to be to fly from Washington to Kos Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Kos Airport.

What documentation or ID do you need to fly to Kos Airport?

The required travel and health documents for your Kos Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kos Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$769 Cheap Flights from Washington to Kos in 2025

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Find the cheapest flights from Washington to Kos

Round-trip

One-way

Cheap round-trip flights

1:00 pm - 2:30 pmSEA-KGS

39h 30m2 stops

8:30 pm - 9:15 pmKGS-SEA

34h 45m2 stops

$1,614SWISS

Find Deal

vie., oct. 17 - mar., oct. 21

Fly from

Fly to

Route

Depart

Return

Price

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

vie. 10/17

1:00 pm-2:30 pm

2 stops39h 30m

Kos

mar. 10/21

8:30 pm-9:15 pm

2 stops34h 45m

$1,614

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

lun. 9/15

5:15 pm-5:30 pm

2 stops38h 15m

$1,367

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Kos

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Kos?

The cheapest day to depart from State of Washington to Kos is on a Tuesday when prices can be found for as low as $1,160. On the other hand, Wednesday is the most expensive day to depart from State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,232.

What is the cheapest time of day to depart on your flight to Kos?

Flying to Kos from State of Washington at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,138 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,182 on average. Flights to Kos from State of Washington in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap State of Washington to Kos flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Kos

Best Price Found	$1,367
Fastest flight time	38h 15m
Direct flights	None
Airports in Kos	1 airport

The best one-way flight to Kos from State of Washington in the past 72 hours is $1,367. The best round-trip flight deal from State of Washington to Kos found on momondo in the last 72 hours is $1,614.

The fastest flight from State of Washington to Kos takes 38h 15m

There are no direct flights from State of Washington to Kos. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kos Airport.

There is 1 airport near Kos: Kos (KGS)

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When did momondo last update prices for flights from Washington to Kos Airport?
Prices for flights from Washington to Kos Airport were last updated today.
How old do you have to be to fly from Washington to Kos Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Kos Airport.
What documentation or ID do you need to fly to Kos Airport?
The required travel and health documents for your Kos Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kos Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Kardamena

Marmari

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Why should I use momondo to find a flight deal from Washington to Kos?

It is quick and easy to find Washington to Kos flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Kos that suits you.

Can I find flights from Washington to Kos with flexible booking policies on momondo?

All flight searches from Washington to Kos on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Kos?

momondo helps you find the best flight between Washington and Kos by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington to Kos right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Kos from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.