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Cheap flights from London to Donegal from £71

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 4/9. 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
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
14:25 - 20:00
LTN
-
CFN
5h 35m
1 stop
Multiple Airlines Logo
14:30 - 00:30
CFN
-
LTN
10h 00m
1 stop
£119Multiple Airlines
Sat, 30 May - Sat, 6 Jun
Multiple Airlines Logo
13:15 - 20:00
STN
-
CFN
6h 45m
1 stop
Multiple Airlines Logo
14:30 - 23:20
CFN
-
STN
8h 50m
1 stop
£119Multiple Airlines
Sat, 30 May - Sat, 6 Jun
Multiple Airlines Logo
16:15 - 20:00
STN
-
CFN
3h 45m
1 stop
Multiple Airlines Logo
14:30 - 21:20
CFN
-
STN
6h 50m
1 stop
£121Multiple Airlines
Sat, 6 Jun - Mon, 8 Jun
Multiple Airlines Logo
11:00 - 20:00
LTN
-
CFN
9h 00m
1 stop
Multiple Airlines Logo
14:30 - 21:40
CFN
-
LTN
7h 10m
1 stop
£122Multiple Airlines
Sat, 6 Jun - Mon, 8 Jun
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
14:30 - 18:55
CFN
-
LHR
4h 25m
1 stop
£209Aer Lingus
Wed, 3 Jun - Thu, 4 Jun
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
14:30 - 19:25
CFN
-
LHR
4h 55m
1 stop
£217Aer Lingus
Sat, 6 Jun - Mon, 8 Jun
Aer Lingus Logo
14:20 - 20:00
LHR
-
CFN
5h 40m
1 stop
Aer Lingus Logo
07:55 - 18:55
CFN
-
LHR
11h 00m
1 stop
£218Aer Lingus
Thu, 11 Jun - Thu, 18 Jun
British Airways Logo
06:45 - 14:00
LCY
-
CFN
7h 15m
1 stop
British Airways Logo
14:30 - 21:35
CFN
-
LCY
7h 05m
1 stop
£453British Airways
Fri, 5 Jun - Mon, 8 Jun
British Airways Logo
06:45 - 14:00
LCY
-
CFN
7h 15m
1 stop
British Airways Logo
14:30 - 21:35
CFN
-
LCY
7h 05m
1 stop
£454British Airways
Fri, 5 Jun - Mon, 8 Jun
British Airways Logo
06:45 - 14:00
LCY
-
CFN
7h 15m
1 stop
British Airways Logo
14:30 - 21:35
CFN
-
LCY
7h 05m
1 stop
£459British Airways
Fri, 5 Jun - Mon, 8 Jun

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
3 Jun
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
4 Jun
CFN14:30Donegal
4h 25m
1 stop
LHR18:55London Heathrow
£209
Aer Lingus
6 Jun
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
8 Jun
CFN14:30Donegal
4h 55m
1 stop
LHR19:25London Heathrow
£217
Aer Lingus
11 Jun
LHR14:20London Heathrow
5h 40m
1 stop
CFN20:00Donegal
18 Jun
CFN07:55Donegal
11h 00m
1 stop
LHR18:55London Heathrow
£218

British Airways flights from London to Donegal

Our best British Airways deals on London to Donegal flight tickets
British Airways
2 Jul
LHR11:30London Heathrow
26h 30m
1 stop
CFN14:00Donegal
8 Jul
CFN14:30Donegal
6h 30m
1 stop
LHR21:00London Heathrow
£394
British Airways
5 Jun
LCY06:45London City
7h 15m
1 stop
CFN14:00Donegal
8 Jun
CFN14:30Donegal
7h 05m
1 stop
LCY21:35London City
£453
British Airways
5 Jun
LCY06:45London City
7h 15m
1 stop
CFN14:00Donegal
8 Jun
CFN14:30Donegal
7h 05m
1 stop
LCY21:35London City
£454

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 18 May 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

LTN - CFN

LTNCFN

London Luton

Sat 30/5

14:25-20:00

1 stop5h 35m

Donegal

Sat 6/6

14:30-00:30

1 stop10h 00m

£119

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 30/5

13:15-20:00

1 stop6h 45m

Donegal

Sat 6/6

14:30-23:20

1 stop8h 50m

£119

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 6/6

16:15-20:00

1 stop3h 45m

Donegal

Mon 8/6

14:30-21:20

1 stop6h 50m

£121

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 6/6

11:00-20:00

1 stop9h 00m

Donegal

Mon 8/6

14:30-21:40

1 stop7h 10m

£122
Fastest return journey

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Wed 3/6

15:50-20:00

1 stop4h 10m

Donegal

Thu 4/6

14:30-18:55

1 stop4h 25m

£209

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 6/6

15:50-20:00

1 stop4h 10m

Donegal

Mon 8/6

14:30-19:25

1 stop4h 55m

£217

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 11/6

14:20-20:00

1 stop5h 40m

Donegal

Thu 18/6

07:55-18:55

1 stop11h 00m

£218

LondonDonegal

LCY - CFN

LCYCFN

London City

Fri 5/6

06:45-14:00

1 stop7h 15m

Donegal

Mon 8/6

14:30-21:35

1 stop7h 05m

£453

LondonDonegal

LCY - CFN

LCYCFN

London City

Fri 5/6

06:45-14:00

1 stop7h 15m

Donegal

Mon 8/6

14:30-21:35

1 stop7h 05m

£454

LondonDonegal

LCY - CFN

LCYCFN

London City

Fri 5/6

06:45-14:00

1 stop7h 15m

Donegal

Mon 8/6

14:30-21:35

1 stop7h 05m

£459

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 and Loganair 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

4h 15m

Direct flights

None
The fastest flight from London to Donegal takes 4h 15m
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 4h 15m, 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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