How long is the flight from Grenoble to London?

There are many flights that can get you from Grenoble to London in 1h 50m. Fly via Ryanair to get the fastest option. Airlines will cover a distance of 506 mi. Generally, flights for this route are direct.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What airport do you fly from for flights from Grenoble to London?

Most people fly from Grenoble (GNB) if they book a flight from Grenoble to London. On average, Grenoble has 0 outbound flights to London per day from 0 airlines. Grenoble is conveniently located just 22.6 mi from Grenoble’s city center.

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

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

How can I find direct flights from Grenoble to London?

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

Can I find deals for business class flights from Grenoble to London?

Yes. Cheapflights offers flight deals from Grenoble to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£23+ Cheap Flights from Grenoble to London

Cheap flight deals from Grenoble to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

One-way

Cheapest flights from Grenoble to London
Explore the most affordable flight options available from Grenoble to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Sat 12/1212:30 -

Nonstop1h 50m

Sun 13/1212:25 -

Nonstop1h 45m

Deal found 17/8£56

Sun 13/1215:50 -

Nonstop1h 50m

Thu 17/1210:50 -

Nonstop1h 45m

Deal found 16/8£60

Sat 12/1212:30 -

Nonstop1h 50m

Thu 17/1210:50 -

Nonstop1h 45m

Deal found 17/8£62

Sat 12/1212:30 -

Nonstop1h 50m

Sat 12/1216:00 -

Nonstop1h 45m

Deal found 16/8£63

Sun 13/1215:50 -

Nonstop1h 50m

Sun 20/1212:25 -

Nonstop1h 45m

Deal found 20/8£81

Sat 12/1212:30 -

Nonstop1h 50m

Sun 20/1212:25 -

Nonstop1h 45m

Deal found 20/8£84

Thu 17/1215:00 -

Nonstop1h 50m

Sun 20/1212:25 -

Nonstop1h 45m

Deal found 16/8£98

Thu 24/1215:00 -

Nonstop1h 50m

Sat 2/106:50 -

Nonstop1h 50m

Deal found 18/8£100

Thu 17/1215:00 -

Nonstop1h 50m

Wed 23/1207:40 -

Nonstop1h 45m

Deal found 16/8£102

Find flight deals from Grenoble to London

Round-trip from	£42
One-way from	£23
Popular in	April
Cheapest in	September
Average price	£112

Ryanair
14/1-16/1
Nonstop
3h 35m total
Grenoble to London

Search Deals

Ryanair
10/1
Nonstop
1h 50m total
Grenoble to London

Search Deals

Highest demand for flights based on searches. 28% potential increase in price (£30 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 15% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sat 12/12

12:30-13:20

Nonstop1h 50m

London Stansted

Sun 13/12

12:25-15:10

Nonstop1h 45m

£56

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Thu 14/1

15:00-15:50

Nonstop1h 50m

London Stansted

Sun 17/1

12:25-15:10

Nonstop1h 45m

£62

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sat 12/12

12:30-13:20

Nonstop1h 50m

London Stansted

Thu 17/12

10:50-13:35

Nonstop1h 45m

£62

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sat 23/1

12:30-13:20

Nonstop1h 50m

London Stansted

Sat 23/1

16:00-18:45

Nonstop1h 45m

£105

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sun 20/12

15:50-16:40

Nonstop1h 50m

London Stansted

Wed 23/12

07:40-10:25

Nonstop1h 45m

£123

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sat 19/12

19:25-20:15

Nonstop1h 50m

London Stansted

Sun 20/12

12:25-15:10

Nonstop1h 45m

£129

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sat 19/12

19:25-20:15

Nonstop1h 50m

London Stansted

Wed 23/12

07:40-10:25

Nonstop1h 45m

£132

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sat 19/12

19:25-20:15

Nonstop1h 50m

London Stansted

Thu 24/12

10:50-13:35

Nonstop1h 45m

£138

Cheapest one-way

Fastest single journey

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Thu 14/1

15:00-15:50

Nonstop1h 50m

£23

GrenobleLondon

GNB Grenoble - STN London Stansted

GNBSTN

Grenoble

Sun 14/2

15:50-16:40

Nonstop1h 50m

£29

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 16 resultsSorted by cheapest first

Best time to book a flight from Grenoble to London

Have a flexible travel schedule? Discover the best time to fly to London from Grenoble with our price prediction graph.

GNB-LON

GNB-STN

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 Grenoble to London

GNB-LON

GNB-STN

What is the cheapest month to book a flight from Grenoble to London?

Currently, September is the cheapest month in which you can book a flight from Grenoble to London (average of £46). Flying from Grenoble to London in April is currently the most expensive (average of £257). 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 GNB to LON?

One of the essential ways to save on airfare from Grenoble to London is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 64% on airfare.

How far ahead should I book a flight from Grenoble to London?

Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Grenoble to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

What airport do you fly from for flights from Grenoble to London?
Most people fly from Grenoble (GNB) if they book a flight from Grenoble to London. On average, Grenoble has 0 outbound flights to London per day from 0 airlines. Grenoble is conveniently located just 22.6 mi from Grenoble’s city center.
How long is the flight from Grenoble to London?
There are many flights that can get you from Grenoble to London in 1h 50m. Fly via Ryanair to get the fastest option. Airlines will cover a distance of 506 mi. Generally, flights for this route are direct.
Can I find deals for flights from Grenoble to London that include hotel bookings?
Yes. In addition to deals on Grenoble to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Grenoble to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Grenoble to London.
Can I find deals for business class flights from Grenoble to London?
Yes. Cheapflights offers flight deals from Grenoble to London 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 Grenoble to London?
Currently, September is the cheapest month in which you can book a flight from Grenoble to London (average of £46). Flying from Grenoble to London in April is currently the most expensive (average of £257). 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.

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Why should you use Cheapflights to find cheap flight tickets from Grenoble to London?

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 London from Grenoble.

Can Cheapflights find flights from Grenoble to London with no change fees?

Certainly. Search results for flights to London from Grenoble shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Grenoble to London become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Grenoble to London from £23

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Grenoble to London

Cheapest flights from Grenoble to LondonExplore the most affordable flight options available from Grenoble to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Explore the most affordable flight options available from Grenoble to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Best flights from Grenoble to LondonDiscover carefully curated flight deals from Grenoble to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Discover carefully curated flight deals from Grenoble to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Direct flights from Grenoble to LondonExplore direct flight options from Grenoble to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 August 2026.

Explore direct flight options from Grenoble to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 August 2026.

One-way flights from Grenoble to LondonSearch for one-way flight options from Grenoble to London. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

Search for one-way flight options from Grenoble to London. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

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Use the filters below to find and compare flights from Grenoble to London that are best for you.

Best time to book a flight from Grenoble to London

Have a flexible travel schedule? Discover the best time to fly to London from Grenoble with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Grenoble to London?

What is the cheapest time of day to fly from GNB to LON?

Find hourly flight availability from Grenoble to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 August 2026.

One of the essential ways to save on airfare from Grenoble to London is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 64% on airfare.

How far ahead should I book a flight from Grenoble to London?

Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Grenoble to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

What airport do you fly from for flights from Grenoble to London?

How long is the flight from Grenoble to London?

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

How can I find direct flights from Grenoble to London?

Can I find deals for business class flights from Grenoble to London?

What is the cheapest month to book a flight from Grenoble to London?

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Can Cheapflights find flights from Grenoble to London with no change fees?

Can Cheapflights notify me if prices for flights from Grenoble to London become cheaper?

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Cheapest flights from Grenoble to London
Explore the most affordable flight options available from Grenoble to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2026.

Best flights from Grenoble to London
Discover carefully curated flight deals from Grenoble to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Direct flights from Grenoble to London
Explore direct flight options from Grenoble to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 August 2026.

One-way flights from Grenoble to London
Search for one-way flight options from Grenoble to London. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.