$535 Cheap Flights from Seattle (SEA) to Zakynthos (ZTH)

View $535 flight on Fri, Nov 7, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Zakynthos (ZTH-Zakynthos Intl.)

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Cheap Flights from Seattle to Zakynthos (SEA-ZTH)

Prices were available within the past 7 days and start at $535 for one-way flights and $772 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Wed, May 6 - Mon, May 18
SEA
Seattle
ZTH
Zakynthos
$772 Roundtrip, found 6 hours ago
$772
Roundtrip
found 6 hours ago
Select Swiss International Air Lines flight, departing Wed, May 6 from Seattle to Zakynthos, returning Mon, May 18, priced at $772 found 6 hours ago
Swiss International Air Lines
Tue, May 5 - Mon, May 18
SEA
Seattle
ZTH
Zakynthos
$785 Roundtrip, found 6 hours ago
$785
Roundtrip
found 6 hours ago
Select Swiss International Air Lines flight, departing Tue, May 5 from Seattle to Zakynthos, returning Mon, May 18, priced at $785 found 6 hours ago
United
Fri, May 1 - Mon, May 18
SEA
Seattle
ZTH
Zakynthos
$807 Roundtrip, found 6 hours ago
$807
Roundtrip
found 6 hours ago
Select United flight, departing Fri, May 1 from Seattle to Zakynthos, returning Mon, May 18, priced at $807 found 6 hours ago
Delta
Sun, Nov 16 - Thu, Dec 4
SEA
Seattle
ZTH
Zakynthos
$815 Roundtrip, found 5 hours ago
$815
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Nov 16 from Seattle to Zakynthos, returning Thu, Dec 4, priced at $815 found 5 hours ago
Delta
Sun, Nov 16 - Wed, Nov 26
SEA
Seattle
ZTH
Zakynthos
$824 Roundtrip, found 5 hours ago
$824
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Nov 16 from Seattle to Zakynthos, returning Wed, Nov 26, priced at $824 found 5 hours ago
Swiss International Air Lines
Wed, May 6 - Sat, May 16
SEA
Seattle
ZTH
Zakynthos
$832 Roundtrip, found 6 hours ago
$832
Roundtrip
found 6 hours ago
Select Swiss International Air Lines flight, departing Wed, May 6 from Seattle to Zakynthos, returning Sat, May 16, priced at $832 found 6 hours ago
United
Wed, May 13 - Sat, May 23
SEA
Seattle
ZTH
Zakynthos
$835 Roundtrip, found 6 hours ago
$835
Roundtrip
found 6 hours ago
Select United flight, departing Wed, May 13 from Seattle to Zakynthos, returning Sat, May 23, priced at $835 found 6 hours ago
KLM
Tue, Dec 9 - Mon, Dec 15
SEA
Seattle
ZTH
Zakynthos
$841 Roundtrip, found 3 days ago
$841
Roundtrip
found 3 days ago
Select KLM flight, departing Tue, Dec 9 from Seattle to Zakynthos, returning Mon, Dec 15, priced at $841 found 3 days ago
Swiss International Air Lines
Tue, May 5 - Sat, May 16
SEA
Seattle
ZTH
Zakynthos
$845 Roundtrip, found 6 hours ago
$845
Roundtrip
found 6 hours ago
Select Swiss International Air Lines flight, departing Tue, May 5 from Seattle to Zakynthos, returning Sat, May 16, priced at $845 found 6 hours ago
Air France
Sun, Feb 22 - Mon, Mar 9
SEA
Seattle
ZTH
Zakynthos
$856 Roundtrip, found 6 hours ago
$856
Roundtrip
found 6 hours ago
Select Air France flight, departing Sun, Feb 22 from Seattle to Zakynthos, returning Mon, Mar 9, priced at $856 found 6 hours ago

Alternative airports near Zakynthos

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

Select flight to Zakynthos Intl. ZTH. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $815
ZTH
Zakynthos Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $815

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH) cost?
Get a cheap one-way flight from $535 or cheap return flight from $772 from Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH)?
Planning your getaway for May can help you save, as it's the cheapest month for flights between SEA and ZTH. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH)?
To find the cheapest airline that'll fly you from SEA to ZTH, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to ZTH?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, airline and other factors.*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 Zakynthos Intl. Airport (ZTH)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH) route, travel before 3 PM. Departures after this time have a 22% higher chance of being 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 Zakynthos Intl. Airport (ZTH) last-minute?
Holding off until just before your departure to book your flight from SEA to ZTH generally means paying more. While you may come across some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans to maximize your chances of snagging a bargain.
Is it cheaper to book a SEA to ZTH flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to ZTH flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the stress out of planning your trip. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Zakynthos Intl. Airport (ZTH)?
Generally, it's possible to cancel or reschedule your SEA to ZTH flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Zakynthos Intl.
Roundtrip price
$771
Distance
6127 mi

Book with confidence

Seattle to Zakynthos Flights

The cheapest times to fly from Seattle to Zakynthos

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 Zakynthos are during the month of May. You can find some of the cheapest flights from Seattle to Zakynthos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Zakynthos

Sunday is one of the best days to book for cheap flights from Seattle to Zakynthos: 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 Zakynthos

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 Zakynthos in 2025. You can also book with separate airlines for your outbound and return journeys, from $535 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 Zakynthos 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 Zakynthos 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 Zakynthos Flights

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