$477 Cheap Flights from Houston (IAH) to Zakynthos (ZTH)

View $477 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Zakynthos (ZTH-Zakynthos Intl.)

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Cheap Flights from Houston to Zakynthos (IAH-ZTH)

Prices were available within the past 7 days and start at $477 for one-way flights and $687 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Oct 24 - Sat, Nov 1
IAH
Houston
ZTH
Zakynthos
$687 Roundtrip, found 3 days ago
$687
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from Houston to Zakynthos, returning Sat, Nov 1, priced at $687 found 3 days ago
United
Fri, Oct 24 - Sat, Nov 1
IAH
Houston
ZTH
Zakynthos
$707 Roundtrip, found 3 days ago
$707
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from Houston to Zakynthos, returning Sat, Nov 1, priced at $707 found 3 days ago
United
Fri, Oct 24 - Sat, Nov 1
IAH
Houston
ZTH
Zakynthos
$711 Roundtrip, found 3 days ago
$711
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from Houston to Zakynthos, returning Sat, Nov 1, priced at $711 found 3 days ago
United
Tue, Aug 26 - Thu, Sep 4
IAH
Houston
ZTH
Zakynthos
$712 Roundtrip, found 2 days ago
$712
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 26 from Houston to Zakynthos, returning Thu, Sep 4, priced at $712 found 2 days ago
Lufthansa
Fri, Oct 24 - Sat, Nov 1
IAH
Houston
ZTH
Zakynthos
$733 Roundtrip, found 3 days ago
$733
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Oct 24 from Houston to Zakynthos, returning Sat, Nov 1, priced at $733 found 3 days ago
United
Wed, Aug 13 - Mon, Aug 18
IAH
Houston
ZTH
Zakynthos
$779 Roundtrip, found 1 day ago
$779
Roundtrip
found 1 day ago
Select United flight, departing Wed, Aug 13 from Houston to Zakynthos, returning Mon, Aug 18, priced at $779 found 1 day ago
United
Mon, Aug 11 - Mon, Aug 18
IAH
Houston
ZTH
Zakynthos
$784 Roundtrip, found 5 days ago
$784
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 11 from Houston to Zakynthos, returning Mon, Aug 18, priced at $784 found 5 days ago
British Airways
Wed, Sep 10 - Thu, Sep 18
IAH
Houston
ZTH
Zakynthos
$807 Roundtrip, found 12 hours ago
$807
Roundtrip
found 12 hours ago
Select British Airways flight, departing Wed, Sep 10 from Houston to Zakynthos, returning Thu, Sep 18, priced at $807 found 12 hours ago
Swiss International Air Lines
Wed, Aug 27 - Mon, Sep 1
IAH
Houston
ZTH
Zakynthos
$1,035 Roundtrip, found 5 days ago
$1,035
Roundtrip
found 5 days ago
Select Swiss International Air Lines flight, departing Wed, Aug 27 from Houston to Zakynthos, returning Mon, Sep 1, priced at $1,035 found 5 days ago
Brussels Airlines
Wed, Aug 27 - Mon, Sep 1
IAH
Houston
ZTH
Zakynthos
$1,545 Roundtrip, found 5 days ago
$1,545
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Wed, Aug 27 from Houston to Zakynthos, returning Mon, Sep 1, priced at $1,545 found 5 days 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 $779
ZTH
Zakynthos Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $779
Flights from Houston (IAH) to Zakynthos (ZTH)
Origin airport
George Bush Intercontinental
Destination airport
Zakynthos Intl.
Airlines serving
British Airways, Brussels Airlines, Lufthansa, Swiss International Air Lines
Roundtrip price
$686
Distance
6204 mi

Houston to Zakynthos Flights

The cheapest times to fly from Houston 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 Houston to Zakynthos are during the month of October. You can find some of the cheapest flights from Houston to Zakynthos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Zakynthos

Sunday is one of the best days to book for cheap flights from Houston 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 Houston 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 Houston to Zakynthos in 2025. You can also book with separate airlines for your outbound and return journeys, from $477 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 Houston 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 Houston 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.

 

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Zakynthos Intl. Airport (ZTH) cost?
Discover the latest flight deals from IAH to ZTH by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAH to ZTH?
The cheapest flights from IAH to ZTH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAH to ZTH?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAH to ZTH. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to Zakynthos Intl. Airport (ZTH)?
Nonstop flights from George Bush Intercontinental Airport (IAH) to Zakynthos Intl. Airport (ZTH) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAH to ZTH?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, carrier 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 George Bush Intercontinental Airport (IAH) to Zakynthos Intl. Airport (ZTH)?
Book a flight from George Bush Intercontinental Airport (IAH) to Zakynthos Intl. Airport (ZTH) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 George Bush Intercontinental Airport (IAH) to Zakynthos Intl. Airport (ZTH) last-minute?
Last-minute fares from IAH to ZTH are typically more expensive. To secure the best rates, start looking for flights ahead of time. That said, if you can play around with your travel dates, you may find a cheap ticket right before your trip.
Is it cheaper to book an IAH to ZTH flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAH to ZTH flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Zakynthos Intl. Airport (ZTH)?
Typically, you can reschedule or cancel your IAH to ZTH flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need more information, go to our Customer Service portal.

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*Available to One Key members.