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Cheap flights from London to Donegal from £58

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Donegal departing on 15/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
20:00 - 07:35
STN
-
CFN
11h 35m
1 stop
Multiple Airlines Logo
08:00 - 19:20
CFN
-
STN
11h 20m
1 stop
£114Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
21:25 - 07:35
LTN
-
CFN
10h 10m
1 stop
Multiple Airlines Logo
20:30 - 00:30
CFN
-
LTN
4h 00m
1 stop
£123Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
22:00 - 07:35
STN
-
CFN
9h 35m
1 stop
Multiple Airlines Logo
08:00 - 14:40
CFN
-
STN
6h 40m
1 stop
£123Multiple Airlines
Tue, 19 May - Tue, 26 May
Multiple Airlines Logo
22:50 - 07:35
STN
-
CFN
8h 45m
1 stop
Multiple Airlines Logo
08:00 - 14:35
CFN
-
STN
6h 35m
1 stop
£124Multiple Airlines
Fri, 8 May - Fri, 15 May
Multiple Airlines Logo
22:00 - 07:35
STN
-
CFN
9h 35m
1 stop
Multiple Airlines Logo
20:30 - 09:50
CFN
-
STN
13h 20m
1 stop
£126Multiple Airlines
Fri, 17 Apr - Sun, 19 Apr
Multiple Airlines Logo
22:00 - 07:35
LGW
-
CFN
9h 35m
1 stop
Multiple Airlines Logo
20:30 - 08:55
CFN
-
LGW
12h 25m
1 stop
£127Multiple Airlines
Fri, 17 Apr - Sun, 19 Apr
Multiple Airlines Logo
19:20 - 07:35
LGW
-
CFN
12h 15m
1 stop
Multiple Airlines Logo
08:00 - 18:55
CFN
-
LGW
10h 55m
1 stop
£129Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
19:50 - 07:35
LTN
-
CFN
11h 45m
1 stop
Multiple Airlines Logo
20:30 - 09:15
CFN
-
LTN
12h 45m
1 stop
£133Multiple Airlines
Tue, 19 May - Tue, 26 May
Aer Lingus Logo
21:10 - 07:35
LHR
-
CFN
10h 25m
1 stop
Aer Lingus Logo
08:00 - 15:00
CFN
-
LHR
7h 00m
1 stop
£202Aer Lingus
Tue, 19 May - Tue, 26 May
Aer Lingus Logo
18:10 - 07:35
LHR
-
CFN
13h 25m
1 stop
Aer Lingus Logo
08:00 - 17:20
CFN
-
LHR
9h 20m
1 stop
£211Aer Lingus
Tue, 12 May - Tue, 19 May

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
19 May
LHR21:10London Heathrow
10h 25m
1 stop
CFN07:35Donegal
26 May
CFN08:00Donegal
7h 00m
1 stop
LHR15:00London Heathrow
£202
Aer Lingus
12 May
LHR18:10London Heathrow
13h 25m
1 stop
CFN07:35Donegal
19 May
CFN08:00Donegal
9h 20m
1 stop
LHR17:20London Heathrow
£211
Aer Lingus
17 Apr
LHR21:10London Heathrow
10h 25m
1 stop
CFN07:35Donegal
19 Apr
CFN08:00Donegal
5h 55m
1 stop
LHR13:55London Heathrow
£223

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 28 March 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

STN - CFN

STNCFN

London Stansted

Sat 9/5

20:00-07:35

1 stop11h 35m

Donegal

Sat 16/5

08:00-19:20

1 stop11h 20m

£114
Fastest return journey

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 9/5

21:25-07:35

1 stop10h 10m

Donegal

Sat 16/5

20:30-00:30

1 stop4h 00m

£123

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 19/5

22:00-07:35

1 stop9h 35m

Donegal

Tue 26/5

08:00-14:40

1 stop6h 40m

£123

LondonDonegal

STN - CFN

STNCFN

London Stansted

Fri 8/5

22:50-07:35

1 stop8h 45m

Donegal

Fri 15/5

08:00-14:35

1 stop6h 35m

£124

LondonDonegal

STN - CFN

STNCFN

London Stansted

Fri 17/4

22:00-07:35

1 stop9h 35m

Donegal

Sun 19/4

20:30-09:50

1 stop13h 20m

£126

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Fri 17/4

22:00-07:35

1 stop9h 35m

Donegal

Sun 19/4

20:30-08:55

1 stop12h 25m

£127

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Sat 9/5

19:20-07:35

1 stop12h 15m

Donegal

Sat 16/5

08:00-18:55

1 stop10h 55m

£129

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Tue 19/5

19:50-07:35

1 stop11h 45m

Donegal

Tue 26/5

20:30-09:15

1 stop12h 45m

£133

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Tue 19/5

21:10-07:35

1 stop10h 25m

Donegal

Tue 26/5

08:00-15:00

1 stop7h 00m

£202

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Tue 12/5

18:10-07:35

1 stop13h 25m

Donegal

Tue 19/5

08:00-17:20

1 stop9h 20m

£211

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
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See travel insights to Donegal from

How to get the cheapest flight ticket from London to Donegal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from London to Donegal?

Aer Lingus is the most popular carrier operating from London to Donegal

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

6h 50m

Direct flights

None
The fastest flight from London to Donegal takes 6h 50m
There are no direct flights from London to Donegal. There are no popular flight routes from London to Donegal.
Search flight deals

  • How far is London to Donegal by plane?

    There are 396.1 mi between London and Donegal. Flights usually cover this in 6h 50m, 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.

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

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