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Cheap flights from London Heathrow to Donegal

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Compare London Heathrow to Donegal flight deals

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

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Flight deals from London Heathrow to Donegal

Looking for a cheap last-minute deal or the best round-trip flight from London Heathrow to Donegal? Find the lowest prices on one-way and round-trip tickets right here.
Donegal.$185 per passenger.Departing Mon, Jun 2, returning Fri, Jun 6.Round-trip flight with British Airways and Aer Lingus.Outbound indirect flight with British Airways, departing from London Heathrow on Mon, Jun 2, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Fri, Jun 6, arriving in London Heathrow.Price includes taxes and charges.From $185, select.
Donegal.$212 per passenger.Departing Mon, May 19, returning Thu, May 22.Round-trip flight with British Airways and Aer Lingus.Outbound indirect flight with British Airways, departing from London Heathrow on Mon, May 19, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Thu, May 22, arriving in London Heathrow.Price includes taxes and charges.From $212, select.
Donegal.$216 per passenger.Departing Thu, May 29, returning Wed, Jun 4.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from London Heathrow on Thu, May 29, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Wed, Jun 4, arriving in London Heathrow.Price includes taxes and charges.From $216, select.
Donegal.$247 per passenger.Departing Mon, Oct 6, returning Fri, Oct 10.Round-trip flight with British Airways and Aer Lingus.Outbound indirect flight with British Airways, departing from London Heathrow on Mon, Oct 6, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Fri, Oct 10, arriving in London Heathrow.Price includes taxes and charges.From $247, select.
Donegal.$255 per passenger.Departing Thu, Sep 11, returning Sun, Sep 14.Round-trip flight with British Airways and Aer Lingus.Outbound indirect flight with British Airways, departing from London Heathrow on Thu, Sep 11, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Sun, Sep 14, arriving in London Heathrow.Price includes taxes and charges.From $255, select.
Donegal.$267 per passenger.Departing Thu, Aug 7, returning Sun, Aug 10.Round-trip flight with British Airways and Aer Lingus.Outbound indirect flight with British Airways, departing from London Heathrow on Thu, Aug 7, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Sun, Aug 10, arriving in London Heathrow.Price includes taxes and charges.From $267, select.
Donegal.$277 per passenger.Departing Wed, Jul 16, returning Sun, Jul 20.Round-trip flight with British Airways and Aer Lingus.Outbound indirect flight with British Airways, departing from London Heathrow on Wed, Jul 16, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Sun, Jul 20, arriving in London Heathrow.Price includes taxes and charges.From $277, select.
Donegal.$292 per passenger.Departing Mon, Apr 28, returning Mon, May 12.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from London Heathrow on Mon, Apr 28, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Mon, May 12, arriving in London Heathrow.Price includes taxes and charges.From $292, select.

Find the cheapest month to fly from London Heathrow to Donegal

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Donegal flights are currently cheapest in June.
Apr
from $295
May
from $212
Jun
from $185
Jul
from $277
Aug
from $267
Sep
from $255
Oct
from $247
Nov
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Dec
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Jan
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Feb
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Mar
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London Heathrow to Donegal: Alternative routes

Compare routes from London Heathrow 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$185
Cheapest month to flyJune

Finding cheap flights from London Heathrow to Donegal: Frequently asked questions

The best price we found for a round-trip flight from London Heathrow to Donegal is $185. 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 Heathrow to Donegal. But we found flights with one or more stops from $185.
There are no flights flying from London Heathrow to Donegal, as of April 2025.
The cheapest month to fly from London Heathrow to Donegal is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Donegal Airport on Monday, June 2, 2025.
No airlines currently offer direct flights between London Heathrow Airport 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.
Currently, British Airways offers the cheapest flight tickets to Donegal.

Traveling from London Heathrow Airport (LHR) to Donegal Airport (CFN): what you need to know

  • London and Donegal share the UTC+0 timezone. This means there's no time difference to adjust for.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport with enough time to board your LHR to CFN flight.

  • You'll likely experience longer lines in popular months like July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a smart move.

  • Enjoy a quick visit to another city or simply break up your journey with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from London Heathrow Airport to Donegal Airport. Many passengers pass through Dublin Airport on this route.

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

  • The cheapest price we've seen for a one-way London Heathrow Airport to Donegal Airport flight is $107. A return ticket right now is $185. Depending on the availability and when you book, these fares may change.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from LHR to CFN if you book in advance. Airlines often have some fantastic early bird deals.

  • If you're flexible with your trip dates, use the 'Whole month' tool. It'll give you the lowest price in every month when searching for your flight from London Heathrow Airport to Donegal Airport.

  • You won't have to check every day to see if fares have dropped when you set up a Price Alert. We'll update you as soon as a special offer becomes available on cheap flights from LHR to CFN.

  • Pick your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from London Heathrow Airport to Donegal Airport.

Handy information about London Heathrow Airport (LHR)

  • 68.18% of flights that depart London Heathrow Airport land at their destination on time.

  • Central London to London Heathrow Airport is around 31 kilometers. Depending on traffic, it'll take about 55 minutes to get there if you're driving, ride-sharing or catching a cab.

  • The journey when using public transport typically takes 1 hour.

  • Booked an early flight from London Heathrow Airport to Donegal Airport? Avoid the hassle of rushing to the terminal (and catch some extra z's) by choosing one of these stays near LHR:

Arriving at Donegal Airport (CFN)

  • The last thing you need is a long trip to your hotel if you're landing late on a London Heathrow Airport to Donegal Airport flight. Check in to one of these accommodation options near CFN instead:

  • Grab a Donegal Airport rental car and explore Donegal and beyond with your own set of wheels. Enterprise, Europcar and Keddy By Europcar are popular providers to choose from here.

  • Reserve your vehicle from Donegal Airport several weeks before your departure date to get the best possible rate. If you're traveling during peak season, it's smart to book even earlier.

Getting from Donegal Airport (CFN) to central Donegal

  • From Donegal Airport, Donegal is approximately 72 kilometers away. It takes around 1 hour 5 minutes to reach the center by car.

  • It typically takes 4 hours 10 minutes to get there using public transport.

When to fly to Donegal Airport (CFN)

  • It's time to plan your travel dates for your flight from London Heathrow Airport to Donegal Airport. July is the most popular month to head to Donegal. If you'd like a more relaxed vibe, go in April.

  • Book your flight from London Heathrow Airport to Donegal Airport for July if you'd like to visit Donegal during its warmest month. Expect temperatures of between 9ºC (48ºF) and 20ºC (68ºF).

  • January sees average temperatures of between 0ºC (32ºF) and 8ºC (46ºF). Search for cheap tickets from LHR to CFN sometime around then if you like traveling in cooler conditions.

Explore more of Ireland

  • You've seen Donegal, now it's time to explore other parts of Ireland. Journey around 193 kilometers south-east to Dublin to tick off its must-visit sights. From Guinness Storehouse to Trinity College Library and Dublin Castle, there's plenty to keep you busy.

  • Cork is another standout destination in Ireland and is around 306 kilometers south of Donegal. No journey is complete without experiencing Blarney Castle, Fota Wildlife Park and Titanic Experience Cobh.

Plan the rest of your trip from London to Donegal

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