$365 Cheap Flights from Grenoble (GNB) to Athens (ATH)

View $365 flight on Sat, Mar 14, 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 $365 for one-way flights and $786 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$786 Roundtrip, found 7 hours ago
$786
Roundtrip
found 7 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $786 found 7 hours ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$819 Roundtrip, found 20 hours ago
$819
Roundtrip
found 20 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $819 found 20 hours ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$823 Roundtrip, found 2 days ago
$823
Roundtrip
found 2 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $823 found 2 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$869 Roundtrip, found 7 hours ago
$869
Roundtrip
found 7 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $869 found 7 hours ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$902 Roundtrip, found 20 hours ago
$902
Roundtrip
found 20 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $902 found 20 hours ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$1,035 Roundtrip, found 7 hours ago
$1,035
Roundtrip
found 7 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $1,035 found 7 hours ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$1,068 Roundtrip, found 20 hours ago
$1,068
Roundtrip
found 20 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $1,068 found 20 hours ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$1,072 Roundtrip, found 2 days ago
$1,072
Roundtrip
found 2 days ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $1,072 found 2 days ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$1,118 Roundtrip, found 7 hours ago
$1,118
Roundtrip
found 7 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $1,118 found 7 hours ago
British Airways
Sat, Dec 27 - Fri, Jan 2
GNB
Grenoble
ATH
Athens
$1,151 Roundtrip, found 20 hours ago
$1,151
Roundtrip
found 20 hours ago
Select British Airways flight, departing Sat, Dec 27 from Grenoble to Athens, returning Fri, Jan 2, priced at $1,151 found 20 hours ago
Flights from Grenoble (GNB) to Athens (ATH)
Origin airport
Grenoble - Isere
Destination airport
Eleftherios Venizelos
Airlines serving
British Airways
Roundtrip price
$786
Distance
1085 mi

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 $365 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.

 

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 $365 or cheap return flight from $786 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.

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*Available to One Key members.