$501 Cheap Flights from Seattle (SEA) to Argostolion (EFL)

View $501 flight on Mon, Sep 15, 2025Opens in a new window

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

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Cheap Flights from Seattle to Argostolion (SEA-EFL)

Prices were available within the past 7 days and start at $501 for one-way flights and $793 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Oct 4 - Mon, Oct 20
SEA
Seattle
EFL
Kefalonia
$793 Roundtrip, found 3 days ago
$793
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 4 from Seattle to Kefalonia, returning Mon, Oct 20, priced at $793 found 3 days ago
British Airways
Fri, May 8 - Sun, May 17
SEA
Seattle
EFL
Kefalonia
$807 Roundtrip, found 12 hours ago
$807
Roundtrip
found 12 hours ago
Select British Airways flight, departing Fri, May 8 from Seattle to Kefalonia, returning Sun, May 17, priced at $807 found 12 hours ago
Lufthansa
Sun, Oct 5 - Mon, Oct 20
SEA
Seattle
EFL
Kefalonia
$808 Roundtrip, found 4 days ago
$808
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sun, Oct 5 from Seattle to Kefalonia, returning Mon, Oct 20, priced at $808 found 4 days ago
Lufthansa
Sat, Oct 4 - Mon, Oct 20
SEA
Seattle
EFL
Kefalonia
$825 Roundtrip, found 4 days ago
$825
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sat, Oct 4 from Seattle to Kefalonia, returning Mon, Oct 20, priced at $825 found 4 days ago
United
Sat, Oct 4 - Fri, Oct 24
SEA
Seattle
EFL
Kefalonia
$885 Roundtrip, found 3 days ago
$885
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 4 from Seattle to Kefalonia, returning Fri, Oct 24, priced at $885 found 3 days ago
Lufthansa
Sun, Sep 28 - Fri, Oct 10
SEA
Seattle
EFL
Kefalonia
$885 Roundtrip, found 4 days ago
$885
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sun, Sep 28 from Seattle to Kefalonia, returning Fri, Oct 10, priced at $885 found 4 days ago
United
Wed, Sep 24 - Fri, Oct 10
SEA
Seattle
EFL
Kefalonia
$888 Roundtrip, found 4 days ago
$888
Roundtrip
found 4 days ago
Select United flight, departing Wed, Sep 24 from Seattle to Kefalonia, returning Fri, Oct 10, priced at $888 found 4 days ago
Lufthansa
Sun, Sep 28 - Mon, Oct 13
SEA
Seattle
EFL
Kefalonia
$894 Roundtrip, found 4 days ago
$894
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sun, Sep 28 from Seattle to Kefalonia, returning Mon, Oct 13, priced at $894 found 4 days ago
Air Canada
Sat, Mar 21 - Tue, Mar 31
SEA
Seattle
EFL
Kefalonia
$1,027 Roundtrip, found 3 days ago
$1,027
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sat, Mar 21 from Seattle to Kefalonia, returning Tue, Mar 31, priced at $1,027 found 3 days ago
Delta
Wed, Oct 22 - Mon, Nov 10
SEA
Seattle
EFL
Kefalonia
$1,047 Roundtrip, found 3 days ago
$1,047
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Oct 22 from Seattle to Kefalonia, returning Mon, Nov 10, priced at $1,047 found 3 days ago

Alternative airports near Kefalonia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kefalonia Island Intl. EFL. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $1,643
EFL
Kefalonia Island Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $1,643
Flights from Seattle (SEA) to Argostolion (EFL)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Kefalonia Island Intl.
Airlines serving
British Airways
Roundtrip price
$793
Distance
6095 mi

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 October. 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 $501 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.

 

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 $501 or cheap return flight from $793 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 October 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.

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*Available to One Key members.