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Cheap flights from London to Donegal from £94

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 16/8. 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
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
08:00 - 15:25
CFN
-
LTN
7h 25m
1 stop
£114Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
22:45 - 07:35
STN
-
CFN
8h 50m
1 stop
Multiple Airlines Logo
08:00 - 16:50
CFN
-
STN
8h 50m
1 stop
£114Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
13:10 - 20:00
LGW
-
CFN
6h 50m
1 stop
Multiple Airlines Logo
08:00 - 12:00
CFN
-
LGW
4h 00m
1 stop
£118Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
16:40 - 12:25
LTN
-
CFN
19h 45m
1 stop
Multiple Airlines Logo
07:55 - 15:25
CFN
-
LTN
7h 30m
1 stop
£132Multiple Airlines
Sat, 21 Mar - Sat, 28 Mar
Multiple Airlines Logo
22:45 - 07:35
STN
-
CFN
8h 50m
1 stop
Multiple Airlines Logo
08:00 - 21:35
CFN
-
STN
13h 35m
2 stops
£132Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
20:00 - 12:25
STN
-
CFN
16h 25m
1 stop
Multiple Airlines Logo
14:30 - 21:20
CFN
-
STN
6h 50m
1 stop
£132Multiple Airlines
Sat, 21 Mar - Sat, 28 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
£133Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
Multiple Airlines Logo
22:50 - 07:35
STN
-
CFN
8h 45m
1 stop
Multiple Airlines Logo
08:00 - 17:05
CFN
-
STN
9h 05m
1 stop
£135Multiple Airlines
Fri, 10 Apr - Tue, 14 Apr
Aer Lingus Logo
22:00 - 07:35
LHR
-
CFN
9h 35m
1 stop
Aer Lingus Logo
08:00 - 13:30
CFN
-
LHR
5h 30m
1 stop
£196Aer Lingus
Sun, 19 Apr - Sun, 26 Apr
Aer Lingus Logo
15:10 - 20:00
LHR
-
CFN
4h 50m
1 stop
Aer Lingus Logo
08:00 - 18:55
CFN
-
LHR
10h 55m
1 stop
£203Aer Lingus
Fri, 24 Apr - Fri, 1 May

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
7h 30m
1 stop
LHR22:00London Heathrow
£414
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
£414
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
£415

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
19 Apr
LHR22:00London Heathrow
9h 35m
1 stop
CFN07:35Donegal
26 Apr
CFN08:00Donegal
5h 30m
1 stop
LHR13:30London Heathrow
£196
Aer Lingus
24 Apr
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
1 May
CFN08:00Donegal
10h 55m
1 stop
LHR18:55London Heathrow
£203
Aer Lingus
19 Jun
LHR14:20London Heathrow
5h 40m
1 stop
CFN20:00Donegal
21 Jun
CFN08:00Donegal
5h 55m
1 stop
LHR13:55London Heathrow
£236

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 11 March 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

Mon 20/4

14:25-20:00

1 stop5h 35m

Donegal

Mon 27/4

08:00-15:25

1 stop7h 25m

£114

LondonDonegal

STN - CFN

STNCFN

London Stansted

Mon 20/4

22:45-07:35

1 stop8h 50m

Donegal

Mon 27/4

08:00-16:50

1 stop8h 50m

£114
Fastest return journey

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Mon 20/4

13:10-20:00

1 stop6h 50m

Donegal

Mon 27/4

08:00-12:00

1 stop4h 00m

£118

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 21/3

16:40-12:25

1 stop19h 45m

Donegal

Sat 28/3

07:55-15:25

1 stop7h 30m

£132

LondonDonegal

STN - CFN

STNCFN

London Stansted

Mon 20/4

22:45-07:35

1 stop8h 50m

Donegal

Mon 27/4

08:00-21:35

2 stops13h 35m

£132

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 21/3

20:00-12:25

1 stop16h 25m

Donegal

Sat 28/3

14:30-21:20

1 stop6h 50m

£132

LondonDonegal

STN - CFN

STNCFN

London Stansted

Wed 22/4

06:30-20:00

1 stop13h 30m

Donegal

Wed 29/4

20:30-07:50

1 stop11h 20m

£133

LondonDonegal

STN - CFN

STNCFN

London Stansted

Fri 10/4

22:50-07:35

1 stop8h 45m

Donegal

Tue 14/4

08:00-17:05

1 stop9h 05m

£135

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sun 19/4

22:00-07:35

1 stop9h 35m

Donegal

Sun 26/4

08:00-13:30

1 stop5h 30m

£196

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Fri 24/4

15:10-20:00

1 stop4h 50m

Donegal

Fri 1/5

08:00-18:55

1 stop10h 55m

£203

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 05m

Direct flights

None
The fastest flight from London to Donegal takes 4h 05m
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 4h 05m, 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 £171Free CancellationRating
7.2
1,473 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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