LON - GNB

£31 Find Cheap Flights from London to Grenoble – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Grenoble departing on 16/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£61
Ryanair
Thu 7/1Thu 14/1
STN - GNB • Direct
Cheapest one-way flight
£31
Ryanair
Sat 16/1
STN - GNB • Direct
Top airlines
Cheapest • from £61 (return)
Best reviews • 6.9 score
Airline reviews
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Top routes
Cheapest • 78% average savings
Most popular
Insights
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Avoid delays
Most punctual • 94% on-time
Best time • Fewest delays
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When to travel
Cheapest • 100% price drop
Most popular
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Expert advice
Flight Deals

Cheap Flights from London to Grenoble (LON-GNB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Grenoble that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Grenoble

Thu, 7 Jan - Thu, 14 Jan
Ryanair Logo
10:50 - 13:35
STN
-
GNB
1h 45mdirect
Ryanair Logo
15:00 - 15:50
GNB
-
STN
1h 50mdirect
£61Ryanair
Sat, 12 Dec - Sat, 19 Dec
Multiple Airlines Logo
16:00 - 18:45
STN
-
GNB
1h 45mdirect
Multiple Airlines Logo
10:40 - 11:30
GNB
-
STN
1h 50mdirect
£79Multiple Airlines
Sat, 9 Jan - Sat, 16 Jan
Ryanair Logo
16:00 - 18:45
STN
-
GNB
1h 45mdirect
Ryanair Logo
19:25 - 20:15
GNB
-
STN
1h 50mdirect
£87Ryanair
Sat, 9 Jan - Sat, 16 Jan
Ryanair Logo
16:00 - 18:45
STN
-
GNB
1h 45mdirect
Ryanair Logo
12:30 - 13:20
GNB
-
STN
1h 50mdirect
£95Ryanair
Sat, 19 Dec - Sun, 20 Dec
Ryanair Logo
16:00 - 18:45
STN
-
GNB
1h 45mdirect
Ryanair Logo
15:50 - 16:40
GNB
-
STN
1h 50mdirect
£99Ryanair
Thu, 24 Dec - Thu, 7 Jan
Ryanair Logo
10:50 - 13:35
STN
-
GNB
1h 45mdirect
Ryanair Logo
15:00 - 15:50
GNB
-
STN
1h 50mdirect
£110Ryanair
Sun, 3 Jan - Sun, 10 Jan
Ryanair Logo
12:25 - 15:10
STN
-
GNB
1h 45mdirect
Ryanair Logo
15:50 - 16:40
GNB
-
STN
1h 50mdirect
£115Ryanair
Sun, 3 Jan - Sun, 10 Jan
Ryanair Logo
12:25 - 15:10
STN
-
GNB
1h 45mdirect
Ryanair Logo
15:50 - 16:40
GNB
-
STN
1h 50mdirect
£116Ryanair
Thu, 17 Dec - Thu, 31 Dec
Ryanair Logo
10:50 - 13:35
STN
-
GNB
1h 45mdirect
Ryanair Logo
15:00 - 15:50
GNB
-
STN
1h 50mdirect
£117Ryanair
Sun, 3 Jan - Sun, 10 Jan
Ryanair Logo
12:25 - 15:10
STN
-
GNB
1h 45mdirect
Ryanair Logo
15:50 - 16:40
GNB
-
STN
1h 50mdirect
£118Ryanair
Booking Insights

KAYAK’s insights & trends for London to Grenoble flights

Get data-powered insights and trends into flights from London to Grenoble to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London to Grenoble?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Grenoble departing in January.

What is the cheapest London to Grenoble flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Grenoble costs £33 on the route between London Gatwick Airport (LGW) and Grenoble (GNB). Over the past month, this route was, on average, 78% cheaper than other London-Grenoble routes. The most popular route is between London Luton Airport (LTN) and Grenoble (GNB).

What is the cheapest month to fly from London to Grenoble?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Grenoble, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Grenoble is May, where tickets cost £0 (return) on average. On the other hand, the most expensive months are October and April, where the average cost of round-trip tickets is £1,286 and £263 respectively.

Expert advice

Expert advice for your flight from London to Grenoble

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on easyJet

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Duncan Madden

Duncan Madden

Expert on Ryanair and British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Good to know - Cheap tickets from London to Grenoble

Cheapest flight

£31
Most popular time to fly and prices are also 45% lower on average.
Flight from London Stansted Airport to Grenoble

When to book flights from London to Grenoble

Are your dates flexible? Find out the best times to travel from London to Grenoble based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Grenoble

  • What is the cheapest flight from London to Grenoble?

    In the last 5 days, the lowest price for a flight from London to Grenoble was £31 for a one-way ticket and £61 for a return.

  • Which airports will I be using when flying from London to Grenoble?

    There are 4 airports in London (London Gatwick, London Heathrow, London Luton, and London Stansted.) and only 1 airport in Grenoble (Grenoble). The cheapest flights are generally found on the London Stansted Airport to Grenoble flight route.

  • Which aircraft models fly most regularly from London to Grenoble?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the London to Grenoble flight route.

  • Which airline alliances offer flights from London to Grenoble?

    oneworld is the only airline alliance operating flights between London and Grenoble.

  • Which is the best airline for flights from London to Grenoble, easyJet or Ryanair?

    The two airlines most popular with KAYAK users for flights from London to Grenoble are easyJet and Ryanair. With an average price for the route of £151 and an overall rating of 6.9, easyJet is the most popular choice. Ryanair is also a great choice for the route, with an average price of £107 and an overall rating of 6.9.

  • How does KAYAK find such low prices on flights from London to Grenoble?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Grenoble.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Grenoble?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Grenoble from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Grenoble?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Grenoble with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Grenoble?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Grenoble from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Grenoble

  • Looking for a cheap flight from Grenoble to London? 25% of our users found flights on this route for £144 or less round-trip.

Reviews of the top 4 airlines flying from London to Grenoble

 
See real verified KAYAK customer reviews for airlines flying from London to Grenoble. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Grenoble? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.9
RyanairOverall score based on 5440 reviews
7.5Crew
6.7Boarding
6.5Comfort
5.7Entertainment
6.0Food
Airline reviews

Great flight just took some time to board even when lining up early for the flight, even taking off took longer then expected.

6.0 GoodDee-ann, Dec 2025
STN - HAM
Read more Ryanair reviews

Great flight just took some time to board even when lining up early for the flight, even taking off took longer then expected.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

We were diverted to warsaw and there was zero information. We were just forced to disembark and off we go good luck the reat of the way. We all had to go our ways to find a way home!!!! Horrible horrible and it cost us alot of money to get a hotel and trains 4:30 pm next day.

Blood contaminated tissue was stuffed to the back of the seat in front of us.

My flight was delayed 1 hour. My Mood was not great

This time round it was very good, flight delayed by 30mins but capitan put his toe to the floor and made some time up!!

Speakers were blaring. It's like being in a Moroccan market and you keep getting shouted at with what's for sale

There was no useful information given regarding the flight back to the UK from Tenerife. This despite the week publicised problems around the EES system and the delays caused to boarding. This aspect of the customer experience could have been much better.

Fast boarding, smooth takeoff and landing. plenty of space in seats. Excellent air-conditioning on a hot day. Perfect experience

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

Would not advise EasyJet for a 5 hour flight…small plane and hence a lot of turbulence. No inflight entertainment so struggle to pass time in cramped seats. We also fell victim to extra charge for our cabin bags, although bag dimensions were ok, but the handle was rigid and slightly fell outside their testing cage!!….never again will we fly with this airline and be party to their scams for making money!

The food and so are to expensive and old . Crew whas not very friendly . Apparently some other passenger can just Push through the waiting people to board while almost punching me and a father with a child down the stairs. Its always something with easy jet . The seats of row 26 where lose . And for a guy of my size there is absolutely no leg room at all .

Seats, WC,sizes for today's generation adults, and if technical problems arise a complimentary coffee, water nice for waiting one hours, the rest is perfect (pilot and cabin crew)

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

Kayak sent several notifications that the flight was late. This contradicted the information on the airport boards. This was extremely confusing and we very nearly missed the flight purely because we double checked with the info desk when the flight stays said’closed’. Kayak notifications are therefore unreliable and pointlesa

The flight was fine but no food available apart from snacks like Pringles and olives which was a problem for me as I hadn’t eaten anything that day. But the worst problem was BA left 24 suitcases in Heathrow as the flight was too full but didn’t tell anyone. So we waited for ages at Toulouse airport with no information and finally found out from the one member of staff in the baggage collection area who explained what had happened and apologised for no announcement being made but said that was their policy. Then BA contacted me today to say they have found my luggage and can deliver it to me on Tuesday - half way through my holiday!!!! So a friend has had to make a four hour round trip in his car to go and collect the luggage from the airport so we can get it today. A TOTAL SHAMBLES AND DISREGARD BY BA FOR THEIR PASSENGERS’ BEST INTERESTS.

The business class seat was an uncomfortable conversion of a main cabin seat well below the quality of even the budget carriers in the US. I would have never paid for business class if would have known I get the same seat as main cabin. BA has gone down hill significantly in this class of service.

Hand bag was taken to be checked in at boarding gate

Lost bag and absolutely no assistance in the short term. No-one to help either via phone or at the airport APPAULING

The Heathrow team was no prepared for the number of people who were coming through at that time of the morning, it seemed they were also experiencing shift change. The lines were incredibly long and moved at a snails pace. A airport rep walked by me, I presented my boarding pass to her and asked if she thought I would make the my flight If I stayed in the current lane. The look on her face told me I was not going to make my flight. She then whisked me to another lane, got me through the line and i ran to the gate and boarded my flight with only seconds to spare. It was a frustrating experience, which BA had nothing to do with. BUT after getting onto the airplane, the flight team was welcoming and I felt a huge sense of relief. Thank you to the BA flight team!!!

Unreliable for flight to and from Paris - taken 6 flights this year and delayed on the way back every single time - very frustrating. And to top it all up - baggage delays are horrendous

British Airways, shame on you the worst flight experience ever!! Avoid at all cost if you can!!! My flight was apparently overbooked and I was refused to fly, apparently this is normal, nothing unusual and I should take it easy and still be happy and smiling when they trying to offer me a stand by ticket for the next flight!!! 🤯🤯🤯 Never ever again thank you very much what the crop service it is there's something fundamentally wrong going with this company I was unable to check in online I was unable to download the receipt I was unable to manage my booking I was waiting in the queue for the luggage when all the desks had some it issues I was refused to fly what else could go wrong??? 🤯🤯🤯

Due to air traffic control, although we boarded the aircraft early, take off was delayed for nearly 50 minutes. This meant we arrived in Lyon late … and the baggage took over 30 minutes to be offloaded … not the best experience.

It was a short flight and the crew was great.

Flight delayed twice then cancelled. Never made aware of a new booking.

Far easier than I expected it to be. Checked in online & had our boarding passes emailed through. Straight through security & boarded on time. No issues.

Both of my flights had issues with their time slot with air traffic control, so they left over an hour late and the flight back to London was delayed by over an hour. Please provide more clarity about baggage requirements on booking sites, your website and within the app. I had to pay for extra bags at the airport when departing London, because they didn’t specify that your carry on bag can only be a backpack and not a trolley, my trolley bag fit the size requirements of the backpack but still I was made to pay

Half an hour delay. Squeezed into a small Departure Lounge with very few seats. Noisy flight with screaming unruly kids. Loud IPads and Phones. Heaven!

Were delayed in the airport for 5 hours with no explanation. Flight kept getting delayed by an hour at a time and wizz air staff were no where to be found

The flight was delayed 5 hours and I'm and invalid,I wan a refund for this

4 hr delay and only told less than 2hrs before. Only given water and nuts on the flight as complimentary service. Left to wait in rain before boarding.

To be honest I did not like anything. Communication to why my flight was cancelled mid air 2 and half hours into my flight. Customer service desk were not helpful with providing information or a solution on what can be done.

I have been treated unacceptably by WizzAir aircraft crew in a previous flight, they threatened me and abused me, and I received an OFFICIAL written apology, but only two (2) months later. This flight had no such unacceptable behaviour, but it's not nice to be left waiting in the walkway (from gate to aircraft) for a long time, just so that the 'boarding' appears to be early, even if actual departure is not.

What I liked new airplane Sitting was extremely uncomfortable! Crew not smiley at all Always chewing gum

The flight was cancelled just 4 hours before the take off...

Everything you need to know for your flight from London to Grenoble

Information on your arrival and departure airports