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Cheap flights from London to Donegal from £96

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 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 to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:30 - 14:00
STN
-
CFN
5h 30m
1 stop
Multiple Airlines Logo
13:00 - 09:50
CFN
-
STN
20h 50m
1 stop
£201Multiple Airlines
Mon, 2 Mar - Sun, 8 Mar
Multiple Airlines Logo
06:30 - 12:25
STN
-
CFN
5h 55m
1 stop
Multiple Airlines Logo
13:00 - 07:50
CFN
-
STN
18h 50m
1 stop
£203Multiple Airlines
Sun, 8 Mar - Sun, 15 Mar
Multiple Airlines Logo
09:40 - 14:00
LGW
-
CFN
4h 20m
1 stop
Multiple Airlines Logo
14:30 - 19:55
CFN
-
LGW
5h 25m
1 stop
£206Multiple Airlines
Tue, 3 Mar - Thu, 5 Mar
Multiple Airlines Logo
06:00 - 14:00
LTN
-
CFN
8h 00m
1 stop
Multiple Airlines Logo
14:30 - 20:30
CFN
-
LTN
6h 00m
1 stop
£208Multiple Airlines
Sat, 21 Mar - Fri, 27 Mar
Aer Lingus Logo
07:50 - 14:00
LHR
-
CFN
6h 10m
1 stop
Aer Lingus Logo
13:00 - 08:05
CFN
-
LHR
19h 05m
1 stop
£276Aer Lingus
Mon, 2 Mar - Sun, 8 Mar
Aer Lingus Logo
07:50 - 12:25
LHR
-
CFN
4h 35m
1 stop
Aer Lingus Logo
13:00 - 16:50
CFN
-
LHR
3h 50m
1 stop
£302Aer Lingus
Sun, 8 Mar - Sun, 15 Mar
Aer Lingus Logo
07:50 - 14:00
LHR
-
CFN
6h 10m
1 stop
Aer Lingus Logo
13:00 - 08:05
CFN
-
LHR
19h 05m
1 stop
£307Aer Lingus
Mon, 2 Mar - Sun, 8 Mar
British Airways Logo
06:30 - 14:00
LHR
-
CFN
7h 30m
1 stop
British Airways Logo
14:30 - 21:05
CFN
-
LHR
6h 35m
1 stop
£425British Airways
Sat, 21 Mar - Wed, 25 Mar
British Airways Logo
11:25 - 12:25
LCY
-
CFN
25h 00m
1 stop
British Airways Logo
14:30 - 21:30
CFN
-
LCY
7h 00m
1 stop
£502British Airways
Sat, 21 Mar - Fri, 27 Mar
British Airways Logo
13:15 - 14:00
LCY
-
CFN
24h 45m
1 stop
British Airways Logo
13:00 - 08:35
CFN
-
LCY
19h 35m
1 stop
£514British Airways
Sun, 8 Mar - Sun, 15 Mar

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
2 Mar
LHR07:50London Heathrow
6h 10m
1 stop
CFN14:00Donegal
8 Mar
CFN13:00Donegal
19h 05m
1 stop
LHR08:05London Heathrow
£276
Aer Lingus
14 Feb
LHR15:15London Heathrow
4h 45m
1 stop
CFN20:00Donegal
15 Feb
CFN10:00Donegal
5h 35m
1 stop
LHR15:35London Heathrow
£291
Aer Lingus
8 Mar
LHR07:50London Heathrow
4h 35m
1 stop
CFN12:25Donegal
15 Mar
CFN13:00Donegal
3h 50m
1 stop
LHR16:50London Heathrow
£302

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
£425
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
5h 20m
1 stop
LHR19:50London Heathrow
£426
British Airways
21 Mar
LCY11:25London City
25h 00m
1 stop
CFN12:25Donegal
27 Mar
CFN14:30Donegal
7h 00m
1 stop
LCY21:30London City
£502

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 9 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

Mon 2/3

08:30-14:00

1 stop5h 30m

Donegal

Sun 8/3

13:00-09:50

1 stop20h 50m

£201

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sun 8/3

06:30-12:25

1 stop5h 55m

Donegal

Sun 15/3

13:00-07:50

1 stop18h 50m

£203

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Tue 3/3

09:40-14:00

1 stop4h 20m

Donegal

Thu 5/3

14:30-19:55

1 stop5h 25m

£206

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 21/3

06:00-14:00

1 stop8h 00m

Donegal

Fri 27/3

14:30-20:30

1 stop6h 00m

£208

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Mon 2/3

07:50-14:00

1 stop6h 10m

Donegal

Sun 8/3

13:00-08:05

1 stop19h 05m

£276

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sun 8/3

07:50-12:25

1 stop4h 35m

Donegal

Sun 15/3

13:00-16:50

1 stop3h 50m

£302

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Mon 2/3

07:50-14:00

1 stop6h 10m

Donegal

Sun 8/3

13:00-08:05

1 stop19h 05m

£307

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 21/3

06:30-14:00

1 stop7h 30m

Donegal

Wed 25/3

14:30-21:05

1 stop6h 35m

£425

LondonDonegal

LCY - CFN

LCYCFN

London City

Sat 21/3

11:25-12:25

1 stop25h 00m

Donegal

Fri 27/3

14:30-21:30

1 stop7h 00m

£502

LondonDonegal

LCY - CFN

LCYCFN

London City

Sun 8/3

13:15-14:00

1 stop24h 45m

Donegal

Sun 15/3

13:00-08:35

1 stop19h 35m

£514

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 and British Airways are the most popular carriers 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

5h 30m

Direct flights

None
The fastest flight from London to Donegal takes 5h 30m
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 5h 30m, 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 many operators does momondo search for flights from London to Donegal Airport?

  • 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.

Best airlines flying from London to Donegal

Compare and see reviews for airlines that fly from London to Donegal with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £169Free CancellationRating
7.2
1,447 reviews
Search Aer Lingus flights

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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