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Cheap flights from London to Donegal from £69

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 30/8. 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
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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 - 14:00
STN
-
CFN
7h 30m
1 stop
Multiple Airlines Logo
07:55 - 21:20
CFN
-
STN
13h 25m
1 stop
£114Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
14:35 - 20:00
STN
-
CFN
5h 25m
1 stop
Multiple Airlines Logo
14:30 - 19:25
CFN
-
STN
4h 55m
1 stop
£115Multiple Airlines
Tue, 28 Jul - Tue, 4 Aug
Multiple Airlines Logo
09:25 - 20:00
LTN
-
CFN
10h 35m
1 stop
Multiple Airlines Logo
07:55 - 13:25
CFN
-
LTN
5h 30m
1 stop
£116Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
06:15 - 14:00
LTN
-
CFN
7h 45m
1 stop
Multiple Airlines Logo
14:30 - 22:10
CFN
-
LTN
7h 40m
1 stop
£117Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
13:10 - 20:00
LGW
-
CFN
6h 50m
1 stop
Multiple Airlines Logo
14:30 - 19:55
CFN
-
LGW
5h 25m
1 stop
£117Multiple Airlines
Thu, 13 Aug - Sat, 15 Aug
Multiple Airlines Logo
11:35 - 20:00
STN
-
CFN
8h 25m
1 stop
Multiple Airlines Logo
14:30 - 19:35
CFN
-
STN
5h 05m
1 stop
£117Multiple Airlines
Tue, 4 Aug - Wed, 12 Aug
Multiple Airlines Logo
06:20 - 14:00
LTN
-
CFN
7h 40m
1 stop
Multiple Airlines Logo
07:55 - 14:00
CFN
-
LTN
6h 05m
1 stop
£118Multiple Airlines
Fri, 14 Aug - Sat, 15 Aug
Multiple Airlines Logo
11:05 - 20:00
LGW
-
CFN
8h 55m
1 stop
Multiple Airlines Logo
14:30 - 20:15
CFN
-
LGW
5h 45m
1 stop
£118Multiple Airlines
Thu, 6 Aug - Wed, 12 Aug
Aer Lingus Logo
15:10 - 20:00
LHR
-
CFN
4h 50m
1 stop
Aer Lingus Logo
14:30 - 19:25
CFN
-
LHR
4h 55m
1 stop
£203Aer Lingus
Thu, 13 Aug - Sat, 15 Aug
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
07:55 - 20:55
CFN
-
LHR
13h 00m
1 stop
£211Aer Lingus
Thu, 30 Jul - Sun, 2 Aug

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Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
13 Aug
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
15 Aug
CFN14:30Donegal
4h 55m
1 stop
LHR19:25London Heathrow
£203
Aer Lingus
30 Jul
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
2 Aug
CFN07:55Donegal
13h 00m
1 stop
LHR20:55London Heathrow
£211
Aer Lingus
28 Jul
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
4 Aug
CFN07:55Donegal
12h 25m
1 stop
LHR20:20London Heathrow
£216

British Airways flights from London to Donegal

Our best British Airways deals on London to Donegal flight tickets
British Airways
10 Oct
LHR08:15London Heathrow
5h 45m
1 stop
CFN14:00Donegal
14 Oct
CFN14:30Donegal
6h 30m
1 stop
LHR21:00London Heathrow
£382
British Airways
10 Oct
LHR08:15London Heathrow
5h 45m
1 stop
CFN14:00Donegal
14 Oct
CFN14:30Donegal
7h 15m
1 stop
LHR21:45London Heathrow
£382
British Airways
10 Oct
LHR08:15London Heathrow
5h 45m
1 stop
CFN14:00Donegal
14 Oct
CFN14:30Donegal
7h 15m
1 stop
LHR21:45London Heathrow
£383

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 2 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

Thu 6/8

06:30-14:00

1 stop7h 30m

Donegal

Mon 10/8

07:55-21:20

1 stop13h 25m

£114

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 28/7

14:35-20:00

1 stop5h 25m

Donegal

Tue 4/8

14:30-19:25

1 stop4h 55m

£115

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Thu 6/8

09:25-20:00

1 stop10h 35m

Donegal

Mon 10/8

07:55-13:25

1 stop5h 30m

£116

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Wed 12/8

06:15-14:00

1 stop7h 45m

Donegal

Wed 19/8

14:30-22:10

1 stop7h 40m

£117

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Thu 13/8

13:10-20:00

1 stop6h 50m

Donegal

Sat 15/8

14:30-19:55

1 stop5h 25m

£117

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 4/8

11:35-20:00

1 stop8h 25m

Donegal

Wed 12/8

14:30-19:35

1 stop5h 05m

£117

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Fri 14/8

06:20-14:00

1 stop7h 40m

Donegal

Sat 15/8

07:55-14:00

1 stop6h 05m

£118

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Thu 6/8

11:05-20:00

1 stop8h 55m

Donegal

Wed 12/8

14:30-20:15

1 stop5h 45m

£118
Fastest return journey

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 13/8

15:10-20:00

1 stop4h 50m

Donegal

Sat 15/8

14:30-19:25

1 stop4h 55m

£203

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 30/7

15:50-20:00

1 stop4h 10m

Donegal

Sun 2/8

07:55-20:55

1 stop13h 00m

£211

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

4h 10m

Direct flights

None
The fastest flight from London to Donegal takes 4h 10m
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 10m, 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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