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Cheap flights from London to Donegal from £203

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 28/2. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:45 - 12:25
STN
-
CFN
14h 40m
1 stop
Multiple Airlines Logo
14:30 - 20:05
CFN
-
STN
5h 35m
1 stop
£203Multiple Airlines
Sat, 28 Feb - Sat, 7 Mar
Multiple Airlines Logo
09:00 - 14:00
LTN
-
CFN
5h 00m
1 stop
Multiple Airlines Logo
14:30 - 20:10
CFN
-
LTN
5h 40m
1 stop
£204Multiple Airlines
Sat, 28 Feb - Sat, 7 Mar
Multiple Airlines Logo
08:30 - 14:00
STN
-
CFN
5h 30m
1 stop
Multiple Airlines Logo
14:30 - 07:50
CFN
-
STN
17h 20m
1 stop
£204Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
06:30 - 14:00
STN
-
CFN
7h 30m
1 stop
Multiple Airlines Logo
14:30 - 07:50
CFN
-
STN
17h 20m
1 stop
£204Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
06:00 - 14:00
LTN
-
CFN
8h 00m
1 stop
Multiple Airlines Logo
14:30 - 08:35
CFN
-
LTN
18h 05m
1 stop
£205Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Aer Lingus Logo
07:50 - 14:00
LHR
-
CFN
6h 10m
1 stop
Aer Lingus Logo
14:30 - 19:50
CFN
-
LHR
5h 20m
1 stop
£264Aer Lingus
Sat, 28 Feb - Sat, 7 Mar
Aer Lingus Logo
07:50 - 14:00
LHR
-
CFN
6h 10m
1 stop
Aer Lingus Logo
14:30 - 21:05
CFN
-
LHR
6h 35m
1 stop
£269Aer Lingus
Mon, 2 Mar - Mon, 9 Mar
Aer Lingus Logo
08:50 - 14:00
LHR
-
CFN
5h 10m
1 stop
Aer Lingus Logo
14:30 - 08:05
CFN
-
LHR
17h 35m
1 stop
£286Aer Lingus
Tue, 17 Mar - Tue, 24 Mar
British Airways Logo
17:15 - 14:00
LCY
-
CFN
20h 45m
1 stop
British Airways Logo
14:30 - 18:35
CFN
-
LCY
4h 05m
1 stop
£469British Airways
Mon, 9 Mar - Mon, 16 Mar
British Airways Logo
11:25 - 12:25
LCY
-
CFN
25h 00m
1 stop
British Airways Logo
14:30 - 12:40
CFN
-
LCY
22h 10m
1 stop
£577British Airways
Sat, 28 Feb - Sat, 7 Mar

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
28 Feb
LHR07:50London Heathrow
6h 10m
1 stop
CFN14:00Donegal
7 Mar
CFN14:30Donegal
5h 20m
1 stop
LHR19:50London Heathrow
£264
Aer Lingus
2 Mar
LHR07:50London Heathrow
6h 10m
1 stop
CFN14:00Donegal
9 Mar
CFN14:30Donegal
6h 35m
1 stop
LHR21:05London Heathrow
£269
Aer Lingus
17 Mar
LHR08:50London Heathrow
5h 10m
1 stop
CFN14:00Donegal
24 Mar
CFN14:30Donegal
17h 35m
1 stop
LHR08:05London Heathrow
£286

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
£381
British Airways
21 Mar
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
25 Mar
CFN14:30Donegal
7h 30m
1 stop
LHR22:00London Heathrow
£389
British Airways
9 Mar
LCY17:15London City
20h 45m
1 stop
CFN14:00Donegal
16 Mar
CFN14:30Donegal
4h 05m
1 stop
LCY18:35London City
£469

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 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

Sat 28/2

21:45-12:25

1 stop14h 40m

Donegal

Sat 7/3

14:30-20:05

1 stop5h 35m

£203

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 28/2

09:00-14:00

1 stop5h 00m

Donegal

Sat 7/3

14:30-20:10

1 stop5h 40m

£204

LondonDonegal

STN - CFN

STNCFN

London Stansted

Mon 2/3

08:30-14:00

1 stop5h 30m

Donegal

Mon 9/3

14:30-07:50

1 stop17h 20m

£204

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 19/3

06:30-14:00

1 stop7h 30m

Donegal

Thu 26/3

14:30-07:50

1 stop17h 20m

£204

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Mon 9/3

06:00-14:00

1 stop8h 00m

Donegal

Mon 16/3

14:30-08:35

1 stop18h 05m

£205

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 28/2

07:50-14:00

1 stop6h 10m

Donegal

Sat 7/3

14:30-19:50

1 stop5h 20m

£264

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Mon 2/3

07:50-14:00

1 stop6h 10m

Donegal

Mon 9/3

14:30-21:05

1 stop6h 35m

£269

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Tue 17/3

08:50-14:00

1 stop5h 10m

Donegal

Tue 24/3

14:30-08:05

1 stop17h 35m

£286

LondonDonegal

LCY - CFN

LCYCFN

London City

Mon 9/3

17:15-14:00

1 stop20h 45m

Donegal

Mon 16/3

14:30-18:35

1 stop4h 05m

£469

LondonDonegal

LCY - CFN

LCYCFN

London City

Sat 28/2

11:25-12:25

1 stop25h 00m

Donegal

Sat 7/3

14:30-12:40

1 stop22h 10m

£577

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

  • 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 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 £168Free CancellationRating
7.2
1,444 reviews
Search Aer Lingus flights

  • How do I get Price Alerts for flights from London to Donegal?

    Search flight deals from London to Donegal. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from London to Donegal with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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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