Cheap flights from Brittany to London from £17

The cheapest month to fly to London from Brittany is in January. Flight prices, which tend to average around £77, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Brittany averaging around £83.

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £81. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Brittany to London for around £187.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £111. Flights in the afternoon are often more expensive, with an average ticket price of £139.

Fly from Rennes St Jacques to London Gatwick for the best Brittany - London flight prices

There is only 1 cabin class available to choose from on Brittany to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Brittany to London.

The number of flights available between Brittany and London is 4 per week as of March 2026. The most frequent departure day is Mon, with 50% of weekly flights leaving on this day.

Flight times from Brittany to London vary, but if you’re flying out of Rennes and flying into London Heathrow Airport (one of the most popular routes), then the duration is 3h 40m on average. Another popular route from Brittany to London is flying from Brest to London Heathrow Airport, which will take roughly 11h 25m. Keep in mind that layovers or delays could extend your travel time.