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Cheap flights from London to Donegal from £102

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Donegal departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from London to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:20 - 07:35
LGW
-
CFN
12h 15m
1 stop
Multiple Airlines Logo
08:00 - 20:45
CFN
-
LGW
12h 45m
1 stop
£102Multiple Airlines
Sat, 2 May - Sat, 9 May
Multiple Airlines Logo
20:00 - 07:35
STN
-
CFN
11h 35m
1 stop
Multiple Airlines Logo
08:00 - 21:20
CFN
-
STN
13h 20m
1 stop
£103Multiple Airlines
Sat, 2 May - Sat, 9 May
Multiple Airlines Logo
06:30 - 20:00
STN
-
CFN
13h 30m
1 stop
Multiple Airlines Logo
20:30 - 07:50
CFN
-
STN
11h 20m
1 stop
£109Multiple Airlines
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
13:00 - 20:00
LTN
-
CFN
7h 00m
1 stop
Multiple Airlines Logo
08:00 - 12:35
CFN
-
LTN
4h 35m
1 stop
£111Multiple Airlines
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
06:30 - 20:00
STN
-
CFN
13h 30m
1 stop
Multiple Airlines Logo
20:30 - 09:50
CFN
-
STN
13h 20m
1 stop
£111Multiple Airlines
Thu, 7 May - Sun, 10 May
Multiple Airlines Logo
14:25 - 20:00
LTN
-
CFN
5h 35m
1 stop
Multiple Airlines Logo
20:30 - 00:30
CFN
-
LTN
4h 00m
1 stop
£112Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
06:30 - 20:00
STN
-
CFN
13h 30m
1 stop
Multiple Airlines Logo
20:30 - 09:50
CFN
-
STN
13h 20m
1 stop
£112Multiple Airlines
Wed, 22 Apr - Sun, 26 Apr
Multiple Airlines Logo
08:50 - 20:00
LGW
-
CFN
11h 10m
1 stop
Multiple Airlines Logo
20:30 - 08:55
CFN
-
LGW
12h 25m
1 stop
£113Multiple Airlines
Wed, 22 Apr - Sun, 26 Apr
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
08:00 - 18:20
CFN
-
LHR
10h 20m
1 stop
£195Aer Lingus
Sat, 9 May - Sat, 16 May
Aer Lingus Logo
14:20 - 20:00
LHR
-
CFN
5h 40m
1 stop
Aer Lingus Logo
20:30 - 08:05
CFN
-
LHR
11h 35m
1 stop
£199Aer Lingus
Wed, 22 Apr - Sun, 26 Apr

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
9 May
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
16 May
CFN08:00Donegal
10h 20m
1 stop
LHR18:20London Heathrow
£195
Aer Lingus
22 Apr
LHR14:20London Heathrow
5h 40m
1 stop
CFN20:00Donegal
26 Apr
CFN20:30Donegal
11h 35m
1 stop
LHR08:05London Heathrow
£199
Aer Lingus
13 May
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
20 May
CFN08:00Donegal
10h 55m
1 stop
LHR18:55London Heathrow
£205

Loganair flights from London to Donegal

Our best Loganair deals on London to Donegal flight tickets
Loganair
7 May
LHR08:45London Heathrow
25h 25m
2 stops
CFN10:10Donegal
10 May
CFN19:15Donegal
24h 25m
2 stops
LHR19:40London Heathrow
£629
Loganair
22 Apr
LHR20:20London Heathrow
37h 50m
2 stops
CFN10:10Donegal
26 Apr
CFN19:15Donegal
20h 15m
2 stops
LHR15:30London Heathrow
£714
Loganair
30 Apr
LHR08:45London Heathrow
25h 25m
2 stops
CFN10:10Donegal
3 May
CFN19:15Donegal
20h 15m
2 stops
LHR15:30London Heathrow
£834

momondo Fare Finder

 
Customise your flight search to find flights from London 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 279,928 searches. Data last updated 3 April 2026.
Use the filters below to find and compare flights from London to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Sat 2/5

19:20-07:35

1 stop12h 15m

Donegal

Sat 9/5

08:00-20:45

1 stop12h 45m

£102

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 2/5

20:00-07:35

1 stop11h 35m

Donegal

Sat 9/5

08:00-21:20

1 stop13h 20m

£103

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 30/4

06:30-20:00

1 stop13h 30m

Donegal

Thu 7/5

20:30-07:50

1 stop11h 20m

£109

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Thu 30/4

13:00-20:00

1 stop7h 00m

Donegal

Thu 7/5

08:00-12:35

1 stop4h 35m

£111

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 7/5

06:30-20:00

1 stop13h 30m

Donegal

Sun 10/5

20:30-09:50

1 stop13h 20m

£111
Fastest return journey

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 9/5

14:25-20:00

1 stop5h 35m

Donegal

Sat 16/5

20:30-00:30

1 stop4h 00m

£112

LondonDonegal

STN - CFN

STNCFN

London Stansted

Wed 22/4

06:30-20:00

1 stop13h 30m

Donegal

Sun 26/4

20:30-09:50

1 stop13h 20m

£112

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Wed 22/4

08:50-20:00

1 stop11h 10m

Donegal

Sun 26/4

20:30-08:55

1 stop12h 25m

£113

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 9/5

15:50-20:00

1 stop4h 10m

Donegal

Sat 16/5

08:00-18:20

1 stop10h 20m

£195

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Wed 22/4

14:20-20:00

1 stop5h 40m

Donegal

Sun 26/4

20:30-08:05

1 stop11h 35m

£199

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from London to Donegal

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

Cheap London to Donegal (LON to CFN) flight deals and tips

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

Fastest flight time

4h 10m

Direct flights

None
The fastest flight from London to Donegal takes 4h 10m
There are no direct flights from London to Donegal. There are no popular flight routes from London to Donegal.
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Frequently asked questions about flying from London to Donegal

  • How far is London to Donegal by plane?

    There are 396.1 mi between London and Donegal. Flights usually cover this in 4h 10m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London to Donegal Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Donegal Airport.

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

    The required travel and health documents for your Donegal Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Donegal Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from London to Donegal

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

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

  • How can I save money on flights from London 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
Downings

Why use momondo?

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

It is quick and easy to find London to Donegal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Donegal that suits you.

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

All flight searches from London to Donegal on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Donegal.

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

Price alerts on flights to Donegal from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Donegal trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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