$598 Cheap Flights from Seattle (SEA) to Argostolion (EFL)

View $598 flight on Sun, Aug 23, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Argostolion (EFL-Kefalonia Island Intl.)

Cheap Flights from Seattle to Argostolion (SEA-EFL)

Prices were available within the past 7 days and start at $598 for one-way flights and $837 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sun, Aug 23 - Sun, Aug 30
SEA
Seattle
EFL
Kefalonia
$837 Roundtrip, found 6 days ago
$837
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sun, Aug 23 from Seattle to Kefalonia, returning Sun, Aug 30, priced at $837 found 6 days ago
KLM
Fri, Feb 20 - Mon, Mar 9
SEA
Seattle
EFL
Kefalonia
$896 Roundtrip, found 2 hours ago
$896
Roundtrip
found 2 hours ago
Select KLM flight, departing Fri, Feb 20 from Seattle to Kefalonia, returning Mon, Mar 9, priced at $896 found 2 hours ago
KLM
Mon, Feb 9 - Mon, Feb 23
SEA
Seattle
EFL
Kefalonia
$913 Roundtrip, found 2 hours ago
$913
Roundtrip
found 2 hours ago
Select KLM flight, departing Mon, Feb 9 from Seattle to Kefalonia, returning Mon, Feb 23, priced at $913 found 2 hours ago
KLM
Fri, Feb 27 - Mon, Mar 9
SEA
Seattle
EFL
Kefalonia
$918 Roundtrip, found 2 hours ago
$918
Roundtrip
found 2 hours ago
Select KLM flight, departing Fri, Feb 27 from Seattle to Kefalonia, returning Mon, Mar 9, priced at $918 found 2 hours ago
British Airways
Fri, May 1 - Sat, May 16
SEA
Seattle
EFL
Kefalonia
$922 Roundtrip, found 2 hours ago
$922
Roundtrip
found 2 hours ago
Select British Airways flight, departing Fri, May 1 from Seattle to Kefalonia, returning Sat, May 16, priced at $922 found 2 hours ago
Air France
Sat, Feb 21 - Mon, Mar 9
SEA
Seattle
EFL
Kefalonia
$922 Roundtrip, found 2 hours ago
$922
Roundtrip
found 2 hours ago
Select Air France flight, departing Sat, Feb 21 from Seattle to Kefalonia, returning Mon, Mar 9, priced at $922 found 2 hours ago
KLM
Tue, Jan 27 - Wed, Feb 11
SEA
Seattle
EFL
Kefalonia
$925 Roundtrip, found 2 hours ago
$925
Roundtrip
found 2 hours ago
Select KLM flight, departing Tue, Jan 27 from Seattle to Kefalonia, returning Wed, Feb 11, priced at $925 found 2 hours ago
Air France
Thu, Jan 1 - Thu, Jan 22
SEA
Seattle
EFL
Kefalonia
$937 Roundtrip, found 2 hours ago
$937
Roundtrip
found 2 hours ago
Select Air France flight, departing Thu, Jan 1 from Seattle to Kefalonia, returning Thu, Jan 22, priced at $937 found 2 hours ago
Air France
Tue, Feb 17 - Mon, Mar 2
SEA
Seattle
EFL
Kefalonia
$939 Roundtrip, found 2 hours ago
$939
Roundtrip
found 2 hours ago
Select Air France flight, departing Tue, Feb 17 from Seattle to Kefalonia, returning Mon, Mar 2, priced at $939 found 2 hours ago
Emirates
Wed, Mar 4 - Mon, Mar 16
SEA
Seattle
EFL
Kefalonia
$1,786 Roundtrip, found 2 hours ago
$1,786
Roundtrip
found 2 hours ago
Select Emirates flight, departing Wed, Mar 4 from Seattle to Kefalonia, returning Mon, Mar 16, priced at $1,786 found 2 hours ago

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL) cost?
Snag a cheap one-way flight from $598 or cheap return flight from $837 from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL)?
Flying in August may help you find better deals, as it's the cheapest month for flights between SEA and EFL. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SEA to EFL flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL)?
There are no daily direct flights from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SEA to EFL?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL) last-minute?
Booking your flight from SEA to EFL right before your getaway is generally more expensive. But if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a SEA to EFL flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to EFL flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place takes the hassle out of planning your trip. Just pick your flights and select from our wide range of hotels, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Kefalonia Island Intl. Airport (EFL)?
If you reserved your SEA to EFL flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Kefalonia Island Intl.
Airlines serving
Emirates
Roundtrip price
$836
Distance
6095 mi

Book with confidence

Seattle to Argostolion Flights

The cheapest times to fly from Seattle to Argostolion

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Argostolion are during the month of August. You can find some of the cheapest flights from Seattle to Argostolion with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Argostolion

Sunday is one of the best days to book for cheap flights from Seattle to Argostolion: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Argostolion

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Argostolion in 2025. You can also book with separate airlines for your outbound and return journeys, from $598 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Argostolion flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Argostolion airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Argostolion Flights

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*Available to One Key members.