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Cheap flights from London Heathrow Airport to Donegal from €322

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Donegal departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from London Heathrow Airport to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:50 - 14:00
LHR
-
CFN
17h 10m
2 stops
Multiple Airlines Logo
14:30 - 19:50
CFN
-
LHR
5h 20m
1 stop
€322Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
06:30 - 14:00
LHR
-
CFN
7h 30m
1 stop
Multiple Airlines Logo
14:30 - 22:00
CFN
-
LHR
7h 30m
1 stop
€327Multiple Airlines
Fri, 6 Mar - Mon, 9 Mar
Aer Lingus Logo
08:50 - 14:00
LHR
-
CFN
5h 10m
1 stop
Aer Lingus Logo
14:30 - 21:05
CFN
-
LHR
6h 35m
1 stop
€338Aer Lingus
Mon, 9 Mar - Mon, 16 Mar
Aer Lingus Logo
18:45 - 14:00
LHR
-
CFN
19h 15m
1 stop
Aer Lingus Logo
14:30 - 19:50
CFN
-
LHR
5h 20m
1 stop
€354Aer Lingus
Fri, 13 Mar - Fri, 20 Mar
Aer Lingus Logo
18:45 - 14:00
LHR
-
CFN
19h 15m
1 stop
Aer Lingus Logo
14:30 - 21:05
CFN
-
LHR
6h 35m
1 stop
€364Aer Lingus
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
17:50 - 14:00
LHR
-
CFN
20h 10m
2 stops
Multiple Airlines Logo
14:30 - 21:05
CFN
-
LHR
6h 35m
1 stop
€365Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
British Airways Logo
06:30 - 14:00
LHR
-
CFN
7h 30m
1 stop
British Airways Logo
14:30 - 22:00
CFN
-
LHR
7h 30m
1 stop
€435British Airways
Sat, 21 Mar - Wed, 25 Mar
British Airways Logo
06:30 - 14:00
LHR
-
CFN
7h 30m
1 stop
British Airways Logo
14:30 - 22:00
CFN
-
LHR
7h 30m
1 stop
€438British Airways
Sat, 21 Mar - Wed, 25 Mar
British Airways Logo
06:30 - 14:00
LHR
-
CFN
7h 30m
1 stop
British Airways Logo
14:30 - 22:00
CFN
-
LHR
7h 30m
1 stop
€439British Airways
Sat, 21 Mar - Wed, 25 Mar
Multiple Airlines Logo
21:10 - 14:00
LHR
-
CFN
16h 50m
2 stops
Multiple Airlines Logo
14:30 - 21:05
CFN
-
LHR
6h 35m
1 stop
€446Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar

Aer Lingus flights from London Heathrow Airport to Donegal

Our best Aer Lingus deals on London Heathrow Airport to Donegal flight tickets
Aer Lingus
9 Mar
LHR08:50London Heathrow
5h 10m
1 stop
CFN14:00Donegal
16 Mar
CFN14:30Donegal
6h 35m
1 stop
LHR21:05London Heathrow
€338
Aer Lingus
13 Mar
LHR18:45London Heathrow
19h 15m
1 stop
CFN14:00Donegal
20 Mar
CFN14:30Donegal
5h 20m
1 stop
LHR19:50London Heathrow
€354
Aer Lingus
13 Mar
LHR18:45London Heathrow
19h 15m
1 stop
CFN14:00Donegal
20 Mar
CFN14:30Donegal
6h 35m
1 stop
LHR21:05London Heathrow
€364

British Airways flights from London Heathrow Airport to Donegal

Our best British Airways deals on London Heathrow Airport to Donegal flight tickets
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
€435
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
€438
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
€439

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Donegal 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, momondo users made 13,528 searches. Data last updated 29 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Mon 9/3

20:50-14:00

2 stops17h 10m

Donegal

Mon 16/3

14:30-19:50

1 stop5h 20m

€322

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Fri 6/3

06:30-14:00

1 stop7h 30m

Donegal

Mon 9/3

14:30-22:00

1 stop7h 30m

€327

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Mon 9/3

08:50-14:00

1 stop5h 10m

Donegal

Mon 16/3

14:30-21:05

1 stop6h 35m

€338

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Fri 13/3

18:45-14:00

1 stop19h 15m

Donegal

Fri 20/3

14:30-19:50

1 stop5h 20m

€354

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Fri 13/3

18:45-14:00

1 stop19h 15m

Donegal

Fri 20/3

14:30-21:05

1 stop6h 35m

€364

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Fri 13/3

17:50-14:00

2 stops20h 10m

Donegal

Fri 20/3

14:30-21:05

1 stop6h 35m

€365

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 21/3

06:30-14:00

1 stop7h 30m

Donegal

Wed 25/3

14:30-22:00

1 stop7h 30m

€435

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 21/3

06:30-14:00

1 stop7h 30m

Donegal

Wed 25/3

14:30-22:00

1 stop7h 30m

€438

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 21/3

06:30-14:00

1 stop7h 30m

Donegal

Wed 25/3

14:30-22:00

1 stop7h 30m

€439

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Fri 13/3

21:10-14:00

2 stops16h 50m

Donegal

Fri 20/3

14:30-21:05

1 stop6h 35m

€446

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from London Heathrow Airport to Donegal

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Donegal according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Donegal (LHR to CFN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Donegal

Fastest flight time

7h 30m

Direct flights

None
The fastest flight from London Heathrow Airport to Donegal takes 7h 30m
There are no direct flights from London Heathrow Airport to Donegal. There are no popular flight routes from London Heathrow Airport to Donegal.
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  • How far is London Heathrow to Donegal by plane?

    Donegal is 621.0 km away from London Heathrow. 7h 30m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Donegal Airport?

    Prices for flights from London Heathrow Airport to Donegal Airport are updated daily.

  • How old do you have to be to fly from London Heathrow Airport to Donegal Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Donegal Airport.

  • What documentation or ID do you need to fly to Donegal Airport?

    The necessary travel and health documents for your Donegal Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from London Heathrow Airport to Donegal?

    Search flight deals from London Heathrow Airport to Donegal. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from London Heathrow Airport to Donegal with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near Donegal?

Book flights to Donegal if you plan to visit one of these locations
Letterkenny
Bundoran
Killybegs

Why use momondo?

Why should I use momondo to find a flight deal from London to Donegal?

Finding the right flight to Donegal from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Donegal quick and easy, saving you time and money.

Can I find flights from London to Donegal with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Donegal from London with this policy.

How can momondo help me find flights from London to Donegal?

momondo helps you find the best flight between London and Donegal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Donegal right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Donegal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Donegal trip

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