Latest deals
When to book
FAQs
Price Alerts

Cheap flights from London to Donegal from €129

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 29/1. 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
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:00 - 20:00
STN
-
CFN
8h 00m1 stop
Multiple Airlines Logo
14:30 - 21:05
CFN
-
STN
6h 35m1 stop
€129Multiple Airlines
Thu, 29 Jan - Thu, 5 Feb
Multiple Airlines Logo
11:25 - 20:00
LGW
-
CFN
8h 35m1 stop
Multiple Airlines Logo
14:30 - 21:00
CFN
-
LGW
6h 30m1 stop
€130Multiple Airlines
Tue, 27 Jan - Tue, 3 Feb
Multiple Airlines Logo
06:30 - 14:00
STN
-
CFN
7h 30m1 stop
Multiple Airlines Logo
07:55 - 14:20
CFN
-
STN
6h 25m1 stop
€131Multiple Airlines
Tue, 27 Jan - Tue, 3 Feb
Multiple Airlines Logo
15:15 - 20:00
STN
-
CFN
4h 45m1 stop
Multiple Airlines Logo
14:30 - 19:35
CFN
-
STN
5h 05m1 stop
€215Multiple Airlines
Sat, 27 Dec - Thu, 1 Jan
Multiple Airlines Logo
06:00 - 14:00
LTN
-
CFN
8h 00m1 stop
Multiple Airlines Logo
14:30 - 23:05
CFN
-
LTN
8h 35m1 stop
€219Multiple Airlines
Sat, 27 Dec - Thu, 1 Jan
Aer Lingus Logo
07:50 - 14:00
LHR
-
CFN
6h 10m1 stop
Aer Lingus Logo
07:55 - 15:35
CFN
-
LHR
7h 40m1 stop
€228Aer Lingus
Tue, 27 Jan - Tue, 3 Feb
Aer Lingus Logo
14:15 - 20:00
LHR
-
CFN
5h 45m1 stop
Aer Lingus Logo
14:30 - 19:50
CFN
-
LHR
5h 20m1 stop
€245Aer Lingus
Tue, 27 Jan - Tue, 3 Feb
Aer Lingus Logo
20:45 - 12:35
LHR
-
CFN
15h 50m1 stop
Aer Lingus Logo
14:30 - 19:50
CFN
-
LHR
5h 20m1 stop
€359Aer Lingus
Sat, 27 Dec - Thu, 1 Jan
British Airways Logo
06:30 - 20:00
LHR
-
CFN
13h 30m1 stop
British Airways Logo
07:55 - 11:55
CFN
-
LHR
4h 00m1 stop
€440British Airways
Sat, 21 Feb - Wed, 25 Feb
British Airways Logo
11:25 - 20:00
LCY
-
CFN
8h 35m1 stop
British Airways Logo
07:55 - 12:40
CFN
-
LCY
4h 45m1 stop
€658British Airways
Sat, 21 Feb - Wed, 25 Feb

British Airways flights from London to Donegal

Our best British Airways deals on London to Donegal flight tickets
British Airways
21 Feb
LHR06:30London Heathrow
13h 30m
1 stop
CFN20:00Donegal
25 Feb
CFN07:55Donegal
4h 00m
1 stop
LHR11:55London Heathrow
€440
Find similar
British Airways
21 Feb
LCY11:25London City
8h 35m
1 stop
CFN20:00Donegal
25 Feb
CFN07:55Donegal
4h 45m
1 stop
LCY12:40London City
€658
Find similar

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
29 Jan
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
5 Feb
CFN14:30Donegal
5h 20m
1 stop
LHR19:50London Heathrow
€251
Find similar
Aer Lingus
27 Dec
LHR20:45London Heathrow
15h 50m
1 stop
CFN12:35Donegal
1 Jan
CFN14:30Donegal
5h 20m
1 stop
LHR19:50London Heathrow
€359
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 13,528 searches. Data last updated 15 December 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

Thu 29/1

12:00-20:00

1 stop8h 00m

Donegal

Thu 5/2

14:30-21:05

1 stop6h 35m

€129

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Tue 27/1

11:25-20:00

1 stop8h 35m

Donegal

Tue 3/2

14:30-21:00

1 stop6h 30m

€130

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 27/1

06:30-14:00

1 stop7h 30m

Donegal

Tue 3/2

07:55-14:20

1 stop6h 25m

€131

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 27/12

15:15-20:00

1 stop4h 45m

Donegal

Thu 1/1

14:30-19:35

1 stop5h 05m

€215

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 27/12

06:00-14:00

1 stop8h 00m

Donegal

Thu 1/1

14:30-23:05

1 stop8h 35m

€219

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Tue 27/1

07:50-14:00

1 stop6h 10m

Donegal

Tue 3/2

07:55-15:35

1 stop7h 40m

€228

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Tue 27/1

14:15-20:00

1 stop5h 45m

Donegal

Tue 3/2

14:30-19:50

1 stop5h 20m

€245

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 27/12

20:45-12:35

1 stop15h 50m

Donegal

Thu 1/1

14:30-19:50

1 stop5h 20m

€359

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 21/2

06:30-20:00

1 stop13h 30m

Donegal

Wed 25/2

07:55-11:55

1 stop4h 00m

€440

LondonDonegal

LCY - CFN

LCYCFN

London City

Sat 21/2

11:25-20:00

1 stop8h 35m

Donegal

Wed 25/2

07:55-12:40

1 stop4h 45m

€658

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

5h 00m

Direct flights

None
The fastest flight from London to Donegal takes 5h 00m
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?

    A flight from London to Donegal will travel around 637.4 km. By plane, this route typically takes 5h 00m.

  • When did momondo last update prices for flights from London to Donegal Airport?

    Prices for flights from London to Donegal Airport were last updated today.

  • How old do you have to be to fly from London to Donegal Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Donegal Airport.

  • What documentation or ID do you need to fly to Donegal Airport?

    The necessary travel and health documents for your Donegal Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

    Confirm your travel details to search for the latest offers for flights from London to Donegal. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

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

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Donegal?

Book flights to Donegal if you plan to visit one of these locations
Letterkenny
Bundoran
Killybegs

Why use momondo?

Why should I use momondo to find a flight deal from London to Donegal?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Donegal for you.

Can I find flights from London to Donegal with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Donegal flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Donegal?

momondo helps you find the best flight between London and Donegal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 14/1
Wed 21/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland