Cheapflights Tip: The best prices from London to Grenoble are usually found in January or March, booked 16 days in advance, depart on a Tuesday or Friday and return on a Monday
Find flight deals from London to Grenoble
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Grenoble (GNB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 April 2026.
Popular in
October
Cheapest in
January
Average price
£242
Highest demand for flights based on searches. 53% potential increase in price (£218 potential increase over avg. return price).
Best time to book a flight from London to Grenoble
Have a flexible travel schedule? Discover the best time to fly to Grenoble from London with our price prediction graph.
LON-GNB
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London to Grenoble
Prices
Delays
How far ahead should I book a flight from London to Grenoble?
Use this chart to determine the optimal time to book a return flight from London to Grenoble. Price data was last updated on 17 April 2026.
Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Grenoble. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London to Grenoble?
Currently, January is the cheapest month in which you can book a flight from London to Grenoble (average of £18). Flying from London to Grenoble in October is currently the most expensive (average of £1,272). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to GNB?
Find hourly flight availability from London to Grenoble. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 April 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Grenoble as you normally would.
How often are flights from London to Grenoble delayed?
About 13% of weekly flights between London and Grenoble have experienced delays in the past year, with the average delay time being 94 minutes.
What is the most punctual flight time for London to Grenoble flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Grenoble flights?
Over the past year, British Airways have had the lowest number of delays on this route, with just 8% of flights being delayed.
Reviews of airlines servicing Grenoble
Get insights into the airlines that provide service to Grenoble. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Grenoble. Reviews last updated 20 April 2026.
Check out reviews from past customers who have flown with Ryanair,easyJet, andBritish Airways from London to Grenoble to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Terrible they overbooked a didn't let 2 of our friends on, absolute shambles
Related info for your journey
Find useful and relevant information for your journey from London to Grenoble. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Grenoble from London?
Grenoble (GNB) is the airport you will fly into if you book a flight from London to Grenoble. You should not have trouble finding flights to Grenoble from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Grenoble airport from London. It is only a 22.6 mi journey from Grenoble (GNB) to Grenoble’s city center.
What are the cheapest airlines flying from London to Grenoble round-trip?
Currently priced at £29, Wizz Air will fly you from London to Grenoble and back. In addition to Wizz Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Ryanair and easyJet - these airlines can fly you to your destination from £35 and £41, respectively. Wizz Air is priced at 88% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for business class flights from London to Grenoble?
Yes. Cheapflights offers flight deals from London to Grenoble by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Grenoble?
Currently, January is the cheapest month in which you can book a flight from London to Grenoble (average of £18). Flying from London to Grenoble in October is currently the most expensive (average of £1,272). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Discover the top 4 airlines that operate flights from London to Grenoble. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 April 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Grenoble?
When you search for this flight from London to Grenoble, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from London to Grenoble?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Grenoble from London.
Can Cheapflights find flights from London to Grenoble with no change fees?
Yes! Cheapflights helps users easily find flights from London to Grenoble with no change fees.
Can Cheapflights notify me if prices for flights from London to Grenoble become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Grenoble from London today and book when prices fit your budget.
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