Cheap Flights from London (LOND) to Donegal (CFN)

Compare London to Donegal flight deals

Find the cheapest month or even day of the year to fly to Donegal

Book the best Donegal fare with no extra fees

Flight deals from London to Donegal Airport

Looking for a cheap last-minute deal or the best return flight from London to Donegal Airport? If you want to travel next month, return fares start from £97. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to Donegal

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Donegal flights are currently cheapest in April.

London to Donegal: Alternative routes

Compare routes from London to Donegal below. You may find an airport to fly into that's cheaper, faster, or easier than Donegal.

London to Donegal: Flight information

The things to know before you go.
Cheapest flight found£55
Cheapest month to flyApril

Finding cheap flights from London to Donegal: Frequently asked questions

The best price we found for a return flight from London to Donegal is £97. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London to Donegal. But we found flights with one stop from £97.
As of March 2026, there are no flights flying from London to Donegal.
The cheapest month to fly from London to Donegal is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Donegal Airport on Thursday, 16 April 2026.
No airlines currently offer direct flights between London and Donegal Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Donegal but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Donegal is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Donegal is Ryanair .

Travelling from London to Donegal Airport (CFN): What you need to know

  • London and Donegal (where Donegal Airport is located) share the UTC+0 timezone. That means you won't have to change your watch when you arrive.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your flight from London to CFN.

  • Head to the airport even earlier during popular months like July. Aim for two hours before domestic departures and up to four hours for international journeys. After checking in, you can use any extra time to grab something to eat or simply relax.

Airports in London

London Heathrow Airport (LHR)

  • You might be able to make your cheap flight from London to CFN even cheaper with a stopover. Just deselect 'Direct flights only' during your search to find cities that could split up the flight. Dublin Airport (DUB) is an option when leaving from London Heathrow Airport (LHR).

  • Located around 24 kms (15 miles) from central London, LHR can be reached in about 45 minutes by car, depending on traffic. The journey on public transport will take roughly 25 minutes.

  • Catching an early flight from London to Donegal Airport? Avoid the stress of rushing to the terminal (and enjoy a little extra shut-eye) by staying at one of these stays close to London Heathrow Airport:

  • Of the departures from London Heathrow Airport, 78% land on schedule at their destination.

London Gatwick Airport (LGW)

  • Make the most of your trip with a stopover on your flight from London to Donegal Airport. Dublin Airport (DUB) is a popular option between London Gatwick Airport and CFN.

  • You can arrive at LGW from central London in approximately 1 hour 5 minutes by car, depending on traffic conditions. The ride by public transport will take roughly 1 hour 20 minutes to travel the 48 kms (30 miles) or so.

  • Catching an early morning flight? You might like to check in to one of these hotels near London Gatwick Airport the day before your London to CFN flight:

  • London Gatwick Airport is known for its commitment to punctuality. 82% of flights taking off from here meet their scheduled arrival times without fail.

London Stansted Airport (STN)

  • You can book a plane ticket from London to Donegal Airport (CFN) leaving from London Stansted Airport (STN) with a stopover. Dublin Airport (DUB) is a popular connection point.

  • The journey time to STN from central London is around 45 minutes by public transport. If you prefer to travel by car, it'll take you about 1 hour 5 minutes to cover the 56 kms (35 miles) or so.

  • Stay in bed a little longer and still make your London to Donegal Airport flight without having to rush. These hotels near London Stansted Airport make it a breeze to get to the terminal if you're jetting off early:

  • With 80% of its departing flights arriving as planned, STN is a reliable starting point for your adventure.

About Donegal Airport (CFN)

Getting from Donegal Airport (CFN) to central Donegal

  • Donegal Airport is around 48 kms (30 miles) from central Donegal. How long it'll take to get there by taxi or car hire depends on the time of day. Do a little research beforehand.

  • If you're using public transport, expect a journey time of roughly 1 hour.

How to find the cheapest flights from London to Donegal Airport (CFN)

  • The cheapest price we've found for a one-way ticket from London to Donegal Airport is £55. For a return flight on this route, the best price is £97. Depending on how early you book and the availability, these fares may change.

  • Booking ahead of time is often the key to finding a cheap flight from London to CFN. Prices tend to rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • The 'Whole month' search tool will show you the cheapest London to Donegal Airport tickets across the entire month. It's a good way to find a bargain if your travel plans aren't set in stone.

  • You don't need to search every day to find out if fares have dropped when you create a Price Alert. We'll notify you when a better deal comes up on plane tickets from London to CFN.

  • Filters make it easier to track down a bargain for your flight from London to Donegal Airport. Pick the airlines, flight times and stops that line up with your plans. Then sort the results by 'Cheapest' to find the most affordable option fast.

The best time to fly from London to Donegal Airport (CFN)

  • Picture the kind of break you want when planning your trip dates. October is the quietest month to go to Donegal. January is when most people book flights from London to Donegal Airport (CFN), which may be ideal if you're chasing more action.

  • The warmest month in Donegal is July, with temperatures ranging between 9ºC and 20ºC. Book your London to CFN plane ticket then if that's your definition of good weather.

  • If you'd rather travel in cooler conditions, search for a cheap ticket from London to Donegal Airport in January when temperatures are between 0ºC and 8ºC.

More about Donegal

  • When it comes to searching for somewhere to lay your head, you'll find the best places to stay in Donegal right here. Browse these hotels once you've booked your flight from London to Donegal Airport:

  • Donegal Castle and Donegal Railway Heritage Centre are waiting for you when you're ready to go sightseeing. Whether you're new to the city or back for another visit, these attractions deserve a spot on every Donegal itinerary.

Explore more of Ireland

  • Donegal has loads to offer, but there are so many other parts of Ireland you'll want to see. Around 225 kms (140 miles) southeast of Donegal, a visit to Dublin will keep your itinerary packed. Start with leading attractions like Guinness Storehouse, Trinity College Library and St. Patrick's Cathedral.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.