€99 Cheap Flights London to Grenoble (LHR-GNB)

If you’re planning on travelling between Heathrow Airport and Grenoble Airport, round-trip flights start from €209. This figure is based on airfares advertised within the last 7 days on Expedia for flights departing within the next year, so don’t delay. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.

Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Heathrow Airport to Grenoble - Isere Airport (GNB) flights, you’ll see a “no change fees” filter for you to select.

Forget about a movie marathon on this flight — it’s just 800 kilometres from Hounslow to Saint-Etienne-de-Saint-Geoirs. Find your seat, order a drink and you’ll be there in next to no time.

Right now, no airlines offer flights directly from Heathrow Airport (LHR) to Grenoble - Isere Airport (GNB). You’ll need to book a flight with at least one stop. To get the best connections and price, lock in your airfare well ahead of time.

Tickets from Heathrow Airport (LHR) to Grenoble Airport are available up to a year before departure on Expedia. And although you may pick up a fantastic last-minute deal, it’s never a sure thing. Also, booking your flights well in advance means you’ll have more choices — and you can avoid ending up with the dreaded middle seat! We regularly update our fares to make sure you get the biggest bargains, so check back often for all the latest specials.