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Cheap flights from London to Donegal from €74

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 22/3. 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 to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 12:25
STN
-
CFN
5h 55m
1 stop
Multiple Airlines Logo
20:30 - 07:50
CFN
-
STN
11h 20m
1 stop
€141Multiple Airlines
Sun, 22 Mar - Sun, 29 Mar
Multiple Airlines Logo
06:30 - 14:00
STN
-
CFN
7h 30m
1 stop
Multiple Airlines Logo
07:55 - 16:35
CFN
-
STN
8h 40m
1 stop
€142Multiple Airlines
Thu, 12 Mar - Mon, 16 Mar
Multiple Airlines Logo
08:50 - 14:00
LGW
-
CFN
5h 10m
1 stop
Multiple Airlines Logo
14:30 - 18:55
CFN
-
LGW
4h 25m
1 stop
€143Multiple Airlines
Thu, 12 Mar - Mon, 16 Mar
Multiple Airlines Logo
20:35 - 07:35
LGW
-
CFN
11h 00m
1 stop
Multiple Airlines Logo
08:00 - 17:05
CFN
-
LGW
9h 05m
1 stop
€144Multiple Airlines
Thu, 9 Apr - Thu, 16 Apr
Multiple Airlines Logo
14:10 - 20:00
LTN
-
CFN
5h 50m
1 stop
Multiple Airlines Logo
07:55 - 11:45
CFN
-
LTN
3h 50m
1 stop
€145Multiple Airlines
Thu, 12 Mar - Mon, 16 Mar
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
€146Multiple Airlines
Thu, 9 Apr - Thu, 16 Apr
Multiple Airlines Logo
21:40 - 07:35
LTN
-
CFN
9h 55m
1 stop
Multiple Airlines Logo
08:00 - 21:15
CFN
-
LTN
13h 15m
1 stop
€147Multiple Airlines
Thu, 9 Apr - Thu, 16 Apr
Multiple Airlines Logo
08:25 - 20:00
LGW
-
CFN
11h 35m
1 stop
Multiple Airlines Logo
08:00 - 11:40
CFN
-
LGW
3h 40m
1 stop
€147Multiple Airlines
Sun, 22 Mar - Sun, 29 Mar
Aer Lingus Logo
15:10 - 20:00
LHR
-
CFN
4h 50m
1 stop
Aer Lingus Logo
20:30 - 08:05
CFN
-
LHR
11h 35m
1 stop
€235Aer Lingus
Thu, 9 Apr - Thu, 16 Apr
Aer Lingus Logo
07:50 - 14:00
LHR
-
CFN
6h 10m
1 stop
Aer Lingus Logo
14:30 - 21:05
CFN
-
LHR
6h 35m
1 stop
€238Aer Lingus
Thu, 19 Mar - Tue, 24 Mar

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
9 Apr
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
16 Apr
CFN20:30Donegal
11h 35m
1 stop
LHR08:05London Heathrow
€235
Aer Lingus
19 Mar
LHR07:50London Heathrow
6h 10m
1 stop
CFN14:00Donegal
24 Mar
CFN14:30Donegal
6h 35m
1 stop
LHR21:05London Heathrow
€238
Aer Lingus
22 Mar
LHR07:50London Heathrow
12h 10m
1 stop
CFN20:00Donegal
29 Mar
CFN20:30Donegal
12h 35m
1 stop
LHR09:05London Heathrow
€242

British Airways flights from London to Donegal

Our best British Airways deals on London to Donegal flight tickets
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
6h 35m
1 stop
LHR21:05London Heathrow
€496
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
5h 20m
1 stop
LHR19:50London Heathrow
€496
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
5h 20m
1 stop
LHR19:50London Heathrow
€497

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 13,528 searches. Data last updated 24 February 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

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sun 22/3

06:30-12:25

1 stop5h 55m

Donegal

Sun 29/3

20:30-07:50

1 stop11h 20m

€141

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 12/3

06:30-14:00

1 stop7h 30m

Donegal

Mon 16/3

07:55-16:35

1 stop8h 40m

€142

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Thu 12/3

08:50-14:00

1 stop5h 10m

Donegal

Mon 16/3

14:30-18:55

1 stop4h 25m

€143

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Thu 9/4

20:35-07:35

1 stop11h 00m

Donegal

Thu 16/4

08:00-17:05

1 stop9h 05m

€144

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Thu 12/3

14:10-20:00

1 stop5h 50m

Donegal

Mon 16/3

07:55-11:45

1 stop3h 50m

€145

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 9/4

06:30-20:00

1 stop13h 30m

Donegal

Thu 16/4

20:30-07:50

1 stop11h 20m

€146

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Thu 9/4

21:40-07:35

1 stop9h 55m

Donegal

Thu 16/4

08:00-21:15

1 stop13h 15m

€147

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Sun 22/3

08:25-20:00

1 stop11h 35m

Donegal

Sun 29/3

08:00-11:40

1 stop3h 40m

€147

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 9/4

15:10-20:00

1 stop4h 50m

Donegal

Thu 16/4

20:30-08:05

1 stop11h 35m

€235

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 19/3

07:50-14:00

1 stop6h 10m

Donegal

Tue 24/3

14:30-21:05

1 stop6h 35m

€238

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 45m

Direct flights

None
The fastest flight from London to Donegal takes 3h 45m
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?

    A flight from London to Donegal will travel around 637.4 km. By plane, this route typically takes 3h 45m.

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

    Prices for flights from London to Donegal Airport were last updated today.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London 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.

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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Donegal for you.

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

Yes. momondo allows you to filter the results for London to Donegal flights to just show those with flexible booking policies.

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?

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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