Cheap flights from London to Grenoble from £15

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — GNB
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Grenoble are usually found in March or January, booked 28 days in advance, depart on a Tuesday or Thursday and return on a Monday

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Cheapest flights from London to Grenoble
Explore the most affordable flight options available from London to Grenoble. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 December 2025.

Thu 11/1211:05STN - GNB
2 stops21h 45mMultiple Airlines
Sun 14/1215:50GNB - STN
Nonstop1h 50mMultiple Airlines
Deal found 29/11£94
Sat 13/1221:45STN - GNB
1 stop10h 45mRyanair
Sat 20/1214:05GNB - STN
1 stop7h 00mRyanair
Deal found 30/11£101
Sat 13/1220:00STN - GNB
1 stop12h 30mMultiple Airlines
Sat 20/1214:05GNB - STN
1 stop7h 00mMultiple Airlines
Deal found 29/11£105
Sat 20/1215:50STN - GNB
Nonstop1h 50mMultiple Airlines
Sat 27/1210:40GNB - STN
Nonstop1h 50mMultiple Airlines
Deal found 30/11£107
Thu 18/1206:25STN - GNB
2 stops26h 25mMultiple Airlines
Sun 21/1210:30GNB - STN
1 stop8h 25mMultiple Airlines
Deal found 1/12£122
Thu 4/1211:05STN - GNB
2 stops21h 45mMultiple Airlines
Fri 12/1210:50GNB - STN
2 stops24h 30mMultiple Airlines
Deal found 30/11£122
Sat 13/1215:50STN - GNB
Nonstop1h 50mRyanair
Sun 14/1215:50GNB - STN
Nonstop1h 50mRyanair
Deal found 28/11£126

Cheap 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 2 December 2025.

Round-trip from

£58

One-way from

£15

Popular in

October

Cheapest in

March

Average price

£147
Ryanair
  • Ryanair
  • 7/2-12/2
  • Nonstop
  • 3h 40m total
  • London to Grenoble
Ryanair
  • Ryanair
  • 24/1
  • Nonstop
  • 1h 50m total
  • London to Grenoble
Highest demand for flights based on searches. 42% potential increase in price (£128 potential increase over avg. return price).
Cheapest flight prices on average. 30% potential price decrease (£40 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Grenoble that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 December 2025.
Use the filters below to find and compare flights from London to Grenoble that are best for you.

Fly from

London

Fly to

Grenoble

Route

Depart

Return

Price

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 7/2

06:50-09:40

Nonstop1h 50m

Grenoble

Thu 12/2

15:00-15:50

Nonstop1h 50m

£58

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 28/2

06:50-09:40

Nonstop1h 50m

Grenoble

Sat 7/3

10:40-11:30

Nonstop1h 50m

£63

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 28/2

06:50-09:40

Nonstop1h 50m

Grenoble

Sat 14/3

10:40-11:30

Nonstop1h 50m

£64

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 21/3

15:50-18:40

Nonstop1h 50m

Grenoble

Sat 28/3

10:40-11:30

Nonstop1h 50m

£70

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Thu 15/1

11:15-14:05

Nonstop1h 50m

Grenoble

Thu 22/1

15:00-15:50

Nonstop1h 50m

£71

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 31/1

15:50-18:40

Nonstop1h 50m

Grenoble

Sat 7/2

10:40-11:30

Nonstop1h 50m

£71

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Thu 26/3

11:15-14:05

Nonstop1h 50m

Grenoble

Sat 28/3

10:40-11:30

Nonstop1h 50m

£73

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 24/1

21:45-09:30

1 stop10h 45m

Grenoble

Sat 14/2

19:25-20:15

Nonstop1h 50m

£76

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 17/1

18:45-09:30

1 stop13h 45m

Grenoble

Sat 24/1

19:25-20:15

Nonstop1h 50m

£84

LondonGrenoble

STN - GNB

STNGNB

London Stansted

Sat 17/1

18:35-09:30

2 stops13h 55m

Grenoble

Sun 18/1

15:50-16:40

Nonstop1h 50m

£86

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 19 results
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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.
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

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 28 November 2025.

Booking 28 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 £21). Flying from London to Grenoble in April is currently the most expensive (average of £91). 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 2 December 2025.

It’s optimal to fly from London to Grenoble in the morning. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight in the evening.

How much does it cost for a return flight from London to Grenoble?

How often are flights from London to Grenoble delayed?

About 20% of weekly flights between London and Grenoble have experienced delays in the past year, with the average delay time being 103 minutes.

What is the most punctual flight time for London to Grenoble flights?

Historically, flights departing at night 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?

Wednesday tends to have the lowest number of delays on this route, whereas Saturday 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, easyJet have had the lowest number of delays on this route, with just 17% 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 2 December 2025.
Check out reviews from past customers who have flown with Jet2, easyJet, andRyanair 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.

Boarding

8.1

Entertainment

6.2

Crew

8.8

Food

7.3

Comfort

7.7

Overall

8.3

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.
8.3
Very Good

Boarding

8.1

Entertainment

6.2

Crew

8.8

Food

7.3

Comfort

7.7

Overall

8.3

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.

Boarding

8.1

Entertainment

6.2

Crew

8.8

Food

7.3

Comfort

7.7

Overall

8.3

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.

Boarding

8.1

Entertainment

6.2

Crew

8.8

Food

7.3

Comfort

7.7

Overall

8.3

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.

Boarding

8.1

Entertainment

6.2

Crew

8.8

Food

7.3

Comfort

7.7

Overall

8.3

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.

Boarding

8.1

Entertainment

6.2

Crew

8.8

Food

7.3

Comfort

7.7

Overall

8.3

Reviews

1 / 17
8.0
Excellent

Gary,Nov 2025

EMA - AYT

Quick on time boarding and flight left the runway bang on 8am, excellent.

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.

  • How long is the flight from London to Grenoble?

    Airlines like Jet2 and Ryanair fly from London to Grenoble in about 1h 50m. The time it takes to get you to your destination is usually consistent. The distance from London to Grenoble is about 506 mi. All flights are typically direct.

  • What are the cheapest airlines flying from London to Grenoble round-trip?

    Currently priced at £23, 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 £49 and £49, respectively. Wizz Air is priced at 89% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from London to Grenoble that include hotel bookings?

    Yes. In addition to deals on London to Grenoble flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Grenoble?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Grenoble.

  • 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 £21). Flying from London to Grenoble in April is currently the most expensive (average of £91). 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.

See more FAQs

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Top 4 airlines flying from London to Grenoble

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 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Wizz AirCheapest£23Average£52FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
RyanairCheapest£49Average£189FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£49Average£190FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£92Average£254FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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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