$334 Cheap Flights from Grenoble (GNB) to Athens (ATH)

View $334 flight on Thu, Feb 12, 2026Opens in a new window

Popular airlines from Grenoble (GNB-Grenoble - Isere) to Athens Intl. Airport (ATH)

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Cheap Flights from Grenoble to Athens (GNB-ATH)

Prices were available within the past 7 days and start at $334 for one-way flights and $760 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Thu, Dec 18 - Fri, Dec 19
GNB
Grenoble
ATH
Athens
$760 Roundtrip, found 4 days ago
$760
Roundtrip
found 4 days ago
Select British Airways flight, departing Thu, Dec 18 from Grenoble to Athens, returning Fri, Dec 19, priced at $760 found 4 days ago
British Airways
Thu, Dec 18 - Sat, Dec 20
GNB
Grenoble
ATH
Athens
$766 Roundtrip, found 4 days ago
$766
Roundtrip
found 4 days ago
Select British Airways flight, departing Thu, Dec 18 from Grenoble to Athens, returning Sat, Dec 20, priced at $766 found 4 days ago
British Airways
Sat, Dec 27 - Wed, Dec 31
GNB
Grenoble
ATH
Athens
$856 Roundtrip, found 4 days ago
$856
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Wed, Dec 31, priced at $856 found 4 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$858 Roundtrip, found 6 days ago
$858
Roundtrip
found 6 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $858 found 6 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$865 Roundtrip, found 4 days ago
$865
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $865 found 4 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$892 Roundtrip, found 6 days ago
$892
Roundtrip
found 6 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $892 found 6 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$899 Roundtrip, found 4 days ago
$899
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $899 found 4 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$907 Roundtrip, found 5 days ago
$907
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $907 found 5 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$941 Roundtrip, found 5 days ago
$941
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $941 found 5 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$963 Roundtrip, found 1 day ago
$963
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $963 found 1 day ago

Frequently asked questions

How much does a flight from Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH) cost?
Lock in a cheap one-way flight from $334 or cheap return flight from $760 from Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH) 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 Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH)?
December is the least expensive month to fly from GNB to ATH. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from GNB to ATH. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH)?
Nonstop flights from Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GNB to ATH?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a range 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 Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH)?
Book a flight from Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures 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 Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH) last-minute?
Waiting until just before your departure to book your flight from GNB to ATH often results in higher prices. Although you may find some last-minute offers, there's no guarantee. Allow some flexibility in your schedule to maximize your chances of getting a bargain.
Is it cheaper to book a GNB to ATH flight and hotel package?
Securing a GNB to ATH flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Grenoble - Isere Airport (GNB) to Eleftherios Venizelos Airport (ATH)?
Typically, you can modify or cancel your GNB to ATH 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 guidelines and fees on flight changes, or if you want further information, visit our Customer Service portal.

Travel information

Origin airport
Grenoble - Isere
Destination airport
Eleftherios Venizelos
Airlines serving
British Airways
Roundtrip price
$760
Distance
1085 mi

Book with confidence

Grenoble to Athens Flights

The cheapest times to fly from Grenoble to Athens

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

 

The best time to book a flight from Grenoble to Athens

Sunday is one of the best days to book for cheap flights from Grenoble to Athens: 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 Grenoble to Athens

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 Grenoble to Athens in 2025. You can also book with separate airlines for your outbound and return journeys, from $334 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 Grenoble to Athens 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 Grenoble to Athens 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.

 

Grenoble to Athens Flights

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*Available to One Key members.