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Cheap flights from London to Donegal from £162

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Donegal departing on 27/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 20:00STN-CFN
13h 30m1 stop
Multiple Airlines Logo
14:30 - 07:50CFN-STN
17h 20m1 stop
£162Multiple Airlines
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Sat, 27 Dec - Sat, 3 Jan
Multiple Airlines Logo
08:30 - 20:00STN-CFN
11h 30m1 stop
Multiple Airlines Logo
13:00 - 07:50CFN-STN
18h 50m1 stop
£165Multiple Airlines
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Sun, 28 Dec - Sun, 4 Jan
Multiple Airlines Logo
15:15 - 20:00LTN-CFN
4h 45m1 stop
Multiple Airlines Logo
13:00 - 08:55CFN-LTN
19h 55m1 stop
£167Multiple Airlines
Find Deal
Sun, 28 Dec - Sun, 4 Jan
Multiple Airlines Logo
09:00 - 20:00LTN-CFN
11h 00m1 stop
Multiple Airlines Logo
14:30 - 07:35CFN-LTN
17h 05m1 stop
£173Multiple Airlines
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Sat, 27 Dec - Sat, 3 Jan
Multiple Airlines Logo
06:30 - 14:00STN-CFN
7h 30m1 stop
Multiple Airlines Logo
13:00 - 07:50CFN-STN
18h 50m1 stop
£181Multiple Airlines
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Thu, 11 Dec - Sun, 14 Dec
Multiple Airlines Logo
10:10 - 20:00LGW-CFN
9h 50m1 stop
Multiple Airlines Logo
13:00 - 21:10CFN-LGW
8h 10m1 stop
£198Multiple Airlines
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Sun, 28 Dec - Sun, 4 Jan
Aer Lingus Logo
15:10 - 20:00LHR-CFN
4h 50m1 stop
Aer Lingus Logo
10:00 - 16:50CFN-LHR
6h 50m1 stop
£246Aer Lingus
Find Deal
Thu, 11 Dec - Sun, 14 Dec
Aer Lingus Logo
07:50 - 14:00LHR-CFN
6h 10m1 stop
Aer Lingus Logo
14:30 - 09:05CFN-LHR
18h 35m1 stop
£277Aer Lingus
Find Deal
Sat, 27 Dec - Sat, 3 Jan
Aer Lingus Logo
07:50 - 20:00LHR-CFN
12h 10m1 stop
Aer Lingus Logo
13:00 - 17:50CFN-LHR
4h 50m1 stop
£279Aer Lingus
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Sun, 28 Dec - Sun, 4 Jan
Loganair Logo
20:20 - 10:10LHR-CFN
37h 50m2 stops
Loganair Logo
19:15 - 15:30CFN-LHR
20h 15m2 stops
£502Loganair
Find Deal
Wed, 18 Feb - Sun, 22 Feb

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
11 Dec
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
14 Dec
CFN10:00Donegal
6h 50m
1 stop
LHR16:50London Heathrow
£246
Find similar
Aer Lingus
27 Dec
LHR07:50London Heathrow
6h 10m
1 stop
CFN14:00Donegal
3 Jan
CFN14:30Donegal
18h 35m
1 stop
LHR09:05London Heathrow
£277
Find similar
Aer Lingus
28 Dec
LHR07:50London Heathrow
12h 10m
1 stop
CFN20:00Donegal
4 Jan
CFN13:00Donegal
4h 50m
1 stop
LHR17:50London Heathrow
£279
Find similar

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 14 November 2025.
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

Sat 27/12

06:30-20:00

1 stop13h 30m

Donegal

Sat 3/1

14:30-07:50

1 stop17h 20m

£162

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sun 28/12

08:30-20:00

1 stop11h 30m

Donegal

Sun 4/1

13:00-07:50

1 stop18h 50m

£165

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sun 28/12

15:15-20:00

1 stop4h 45m

Donegal

Sun 4/1

13:00-08:55

1 stop19h 55m

£167

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 27/12

09:00-20:00

1 stop11h 00m

Donegal

Sat 3/1

14:30-07:35

1 stop17h 05m

£172

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 11/12

06:30-14:00

1 stop7h 30m

Donegal

Sun 14/12

13:00-07:50

1 stop18h 50m

£181

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Sun 28/12

10:10-20:00

1 stop9h 50m

Donegal

Sun 4/1

13:00-21:10

1 stop8h 10m

£198

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 11/12

15:10-20:00

1 stop4h 50m

Donegal

Sun 14/12

10:00-16:50

1 stop6h 50m

£246

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 27/12

07:50-14:00

1 stop6h 10m

Donegal

Sat 3/1

14:30-09:05

1 stop18h 35m

£277

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sun 28/12

07:50-20:00

1 stop12h 10m

Donegal

Sun 4/1

13:00-17:50

1 stop4h 50m

£279

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Wed 18/2

20:20-10:10

2 stops37h 50m

Donegal

Sun 22/2

19:15-15:30

2 stops20h 15m

£502

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 day to depart on your flight to Donegal?

The cheapest day to depart on your flight to Donegal is on a Wednesday when prices can be found for as low as £208. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around £309. These prices are subject to change though, so be sure to set up a Price Alert for flights to Donegal.

What is the cheapest time of day to depart on your flight to Donegal?

Flying to Donegal from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as £280 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Donegal is in the afternoon when prices are around £306.

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

Direct flights

None
There are no direct flights from London to Donegal. There are no popular flight routes from London to Donegal.
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  • How far is London to Donegal by plane?

    There are 396.1 mi between London and Donegal. Flights usually cover this in 4h 45m, 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 £175Free CancellationRating
7.2
1,370 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

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