$498 Cheap Flights from Denver (DEN) to Zakynthos (ZTH)

View $498 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Zakynthos (ZTH-Zakynthos Intl.)

Cheap Flights from Denver to Zakynthos (DEN-ZTH)

Prices were available within the past 7 days and start at $498 for one-way flights and $690 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$690 Roundtrip, found 2 days ago
$690
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $690 found 2 days ago
United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$704 Roundtrip, found 2 days ago
$704
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $704 found 2 days ago
United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$707 Roundtrip, found 2 days ago
$707
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $707 found 2 days ago
United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$708 Roundtrip, found 2 days ago
$708
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $708 found 2 days ago
United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$722 Roundtrip, found 2 days ago
$722
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $722 found 2 days ago
United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$725 Roundtrip, found 2 days ago
$725
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $725 found 2 days ago
United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$740 Roundtrip, found 2 days ago
$740
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $740 found 2 days ago
United
Wed, Oct 15 - Thu, Oct 23
DEN
Denver
ZTH
Zakynthos
$754 Roundtrip, found 2 days ago
$754
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Denver to Zakynthos, returning Thu, Oct 23, priced at $754 found 2 days ago
Swiss International Air Lines
Sat, Oct 18 - Sat, Nov 8
DEN
Denver
ZTH
Zakynthos
$850 Roundtrip, found 6 days ago
$850
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Sat, Oct 18 from Denver to Zakynthos, returning Sat, Nov 8, priced at $850 found 6 days ago
Brussels Airlines
Fri, May 8 - Mon, May 18
DEN
Denver
ZTH
Zakynthos
$2,045 Roundtrip, found 13 hours ago
$2,045
Roundtrip
found 13 hours ago
Select Brussels Airlines flight, departing Fri, May 8 from Denver to Zakynthos, returning Mon, May 18, priced at $2,045 found 13 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 $1,138
ZTH
Zakynthos Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $1,138
Flights from Denver (DEN) to Zakynthos (ZTH)
Origin airport
Denver Intl.
Destination airport
Zakynthos Intl.
Airlines serving
Brussels Airlines
Roundtrip price
$690
Distance
6062 mi

Denver to Zakynthos Flights

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

 

The best time to book a flight from Denver to Zakynthos

Sunday is one of the best days to book for cheap flights from Denver 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 Denver 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 Denver to Zakynthos in 2025. You can also book with separate airlines for your outbound and return journeys, from $498 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 Denver 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 Denver 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 Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH) cost?
Lock in a cheap one-way flight from $498 or cheap return flight from $690 from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH)?
October is the cheapest month to fly from DEN to ZTH. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH)?
To find the cheapest airline that'll fly you from DEN to ZTH, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH)?
There aren't any daily nonstop flights from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from DEN to ZTH?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH)?
Choose a flight from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this time 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 Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH) last-minute?
Holding off until just before your trip to book your flight from DEN to ZTH often results in higher prices. While it's possible to find some last-minute deals, they aren't always guaranteed. Be flexible with your travel plans to maximize your chances of landing a bargain.
Is it cheaper to book a DEN to ZTH flight and hotel package?
Opting for a DEN to ZTH flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Zakynthos Intl. Airport (ZTH)?
In most instances, you're able to cancel or reschedule your DEN to ZTH flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like further information, head to our Customer Service portal.

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*Available to One Key members.