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Cheap flights from London to Donegal from £108

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 11/9. 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
1 adult, Economy, 0 bags

Find the cheapest flights from London to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:35 - 20:00
STN
-
CFN
13h 25m
1 stop
Multiple Airlines Logo
07:55 - 21:20
CFN
-
STN
13h 25m
1 stop
£108Multiple Airlines
Fri, 11 Sep - Fri, 18 Sep
Multiple Airlines Logo
11:35 - 20:00
STN
-
CFN
8h 25m
1 stop
Multiple Airlines Logo
07:55 - 12:50
CFN
-
STN
4h 55m
1 stop
£112Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
09:40 - 14:00
LTN
-
CFN
4h 20m
1 stop
Multiple Airlines Logo
07:55 - 12:45
CFN
-
LTN
4h 50m
1 stop
£115Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
11:35 - 20:00
STN
-
CFN
8h 25m
1 stop
Multiple Airlines Logo
14:30 - 19:25
CFN
-
STN
4h 55m
1 stop
£115Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
11:55 - 20:00
LGW
-
CFN
8h 05m
1 stop
Multiple Airlines Logo
14:30 - 20:55
CFN
-
LGW
6h 25m
1 stop
£116Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
14:25 - 20:00
LTN
-
CFN
5h 35m
1 stop
Multiple Airlines Logo
07:55 - 13:25
CFN
-
LTN
5h 30m
1 stop
£117Multiple Airlines
Sat, 10 Oct - Mon, 12 Oct
Multiple Airlines Logo
11:55 - 20:00
LGW
-
CFN
8h 05m
1 stop
Multiple Airlines Logo
14:30 - 20:55
CFN
-
LGW
6h 25m
1 stop
£117Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
09:40 - 14:00
LTN
-
CFN
4h 20m
1 stop
Multiple Airlines Logo
07:55 - 12:45
CFN
-
LTN
4h 50m
1 stop
£118Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
08:50 - 14:00
LGW
-
CFN
5h 10m
1 stop
Multiple Airlines Logo
14:30 - 20:40
CFN
-
LGW
6h 10m
1 stop
£118Multiple Airlines
Tue, 1 Sep - Thu, 3 Sep
Multiple Airlines Logo
06:20 - 20:00
LTN
-
CFN
13h 40m
1 stop
Multiple Airlines Logo
14:30 - 23:25
CFN
-
LTN
8h 55m
1 stop
£120Multiple Airlines
Fri, 11 Sep - Fri, 18 Sep

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Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
7 Sept
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
14 Sept
CFN07:55Donegal
11h 00m
1 stop
LHR18:55London Heathrow
£196
Aer Lingus
22 Aug
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
29 Aug
CFN14:30Donegal
4h 55m
1 stop
LHR19:25London Heathrow
£198
Aer Lingus
10 Oct
LHR07:40London Heathrow
12h 20m
1 stop
CFN20:00Donegal
12 Oct
CFN14:30Donegal
5h 50m
1 stop
LHR20:20London Heathrow
£199

British Airways flights from London to Donegal

Our best British Airways deals on London to Donegal flight tickets
British Airways
23 Dec
LHR06:30London Heathrow
13h 30m
1 stop
CFN20:00Donegal
24 Dec
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
£384
British Airways
8 Sept
LHR06:20London Heathrow
7h 40m
1 stop
CFN14:00Donegal
15 Sept
CFN14:30Donegal
7h 10m
1 stop
LHR21:40London Heathrow
£386
British Airways
22 Dec
LHR06:30London Heathrow
13h 30m
1 stop
CFN20:00Donegal
23 Dec
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
£394

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 29 July 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

Fri 11/9

06:35-20:00

1 stop13h 25m

Donegal

Fri 18/9

07:55-21:20

1 stop13h 25m

£108

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 8/9

11:35-20:00

1 stop8h 25m

Donegal

Tue 15/9

07:55-12:50

1 stop4h 55m

£112
Fastest return journey

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Tue 8/9

09:40-14:00

1 stop4h 20m

Donegal

Tue 15/9

07:55-12:45

1 stop4h 50m

£115

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 8/9

11:35-20:00

1 stop8h 25m

Donegal

Tue 15/9

14:30-19:25

1 stop4h 55m

£115

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Tue 8/9

11:55-20:00

1 stop8h 05m

Donegal

Tue 15/9

14:30-20:55

1 stop6h 25m

£116

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 10/10

14:25-20:00

1 stop5h 35m

Donegal

Mon 12/10

07:55-13:25

1 stop5h 30m

£117

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Tue 8/9

11:55-20:00

1 stop8h 05m

Donegal

Tue 15/9

14:30-20:55

1 stop6h 25m

£117

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Tue 8/9

09:40-14:00

1 stop4h 20m

Donegal

Tue 15/9

07:55-12:45

1 stop4h 50m

£118

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Tue 1/9

08:50-14:00

1 stop5h 10m

Donegal

Thu 3/9

14:30-20:40

1 stop6h 10m

£118

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Fri 11/9

06:20-20:00

1 stop13h 40m

Donegal

Fri 18/9

14:30-23:25

1 stop8h 55m

£120

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

3h 50m

Direct flights

None
The fastest flight from London to Donegal takes 3h 50m
There are no direct flights from London to Donegal. There are no popular flight routes from London to Donegal.
Search flight deals

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 3h 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

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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