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Cheap flights from London to Donegal from €67

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 15/5. 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
16:15 - 20:00
STN
-
CFN
3h 45m
1 stop
Multiple Airlines Logo
08:00 - 19:20
CFN
-
STN
11h 20m
1 stop
€125Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
14:25 - 20:00
LTN
-
CFN
5h 35m
1 stop
Multiple Airlines Logo
20:30 - 00:30
CFN
-
LTN
4h 00m
1 stop
€129Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
12:05 - 20:00
LGW
-
CFN
7h 55m
1 stop
Multiple Airlines Logo
08:00 - 18:20
CFN
-
LGW
10h 20m
1 stop
€130Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
21:25 - 07:35
LTN
-
CFN
10h 10m
1 stop
Multiple Airlines Logo
20:30 - 00:30
CFN
-
LTN
4h 00m
1 stop
€142Multiple Airlines
Sat, 9 May - Sat, 16 May
Multiple Airlines Logo
22:00 - 07:35
STN
-
CFN
9h 35m
1 stop
Multiple Airlines Logo
20:30 - 09:50
CFN
-
STN
13h 20m
1 stop
€146Multiple Airlines
Fri, 17 Apr - Sun, 19 Apr
Multiple Airlines Logo
22:00 - 07:35
LGW
-
CFN
9h 35m
1 stop
Multiple Airlines Logo
20:30 - 08:55
CFN
-
LGW
12h 25m
1 stop
€147Multiple Airlines
Fri, 17 Apr - Sun, 19 Apr
Multiple Airlines Logo
09:00 - 20:00
LTN
-
CFN
11h 00m
1 stop
Multiple Airlines Logo
20:30 - 09:00
CFN
-
LTN
12h 30m
1 stop
€154Multiple Airlines
Sun, 12 Apr - Wed, 15 Apr
Multiple Airlines Logo
07:25 - 20:00
STN
-
CFN
12h 35m
2 stops
Multiple Airlines Logo
08:00 - 19:20
CFN
-
STN
11h 20m
1 stop
€154Multiple Airlines
Sat, 9 May - Sat, 16 May
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
08:00 - 18:20
CFN
-
LHR
10h 20m
1 stop
€224Aer Lingus
Sat, 9 May - Sat, 16 May
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
08:00 - 18:55
CFN
-
LHR
10h 55m
1 stop
€235Aer Lingus
Wed, 13 May - Wed, 20 May

Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
9 May
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
16 May
CFN08:00Donegal
10h 20m
1 stop
LHR18:20London Heathrow
€224
Aer Lingus
13 May
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
20 May
CFN08:00Donegal
10h 55m
1 stop
LHR18:55London Heathrow
€235
Aer Lingus
12 May
LHR18:10London Heathrow
13h 25m
1 stop
CFN07:35Donegal
19 May
CFN08:00Donegal
9h 20m
1 stop
LHR17:20London Heathrow
€244

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 30 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

STN - CFN

STNCFN

London Stansted

Sat 9/5

16:15-20:00

1 stop3h 45m

Donegal

Sat 16/5

08:00-19:20

1 stop11h 20m

€125
Fastest return journey

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 9/5

14:25-20:00

1 stop5h 35m

Donegal

Sat 16/5

20:30-00:30

1 stop4h 00m

€129

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Sat 9/5

12:05-20:00

1 stop7h 55m

Donegal

Sat 16/5

08:00-18:20

1 stop10h 20m

€130

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 9/5

21:25-07:35

1 stop10h 10m

Donegal

Sat 16/5

20:30-00:30

1 stop4h 00m

€142

LondonDonegal

STN - CFN

STNCFN

London Stansted

Fri 17/4

22:00-07:35

1 stop9h 35m

Donegal

Sun 19/4

20:30-09:50

1 stop13h 20m

€146

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Fri 17/4

22:00-07:35

1 stop9h 35m

Donegal

Sun 19/4

20:30-08:55

1 stop12h 25m

€147

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sun 12/4

09:00-20:00

1 stop11h 00m

Donegal

Wed 15/4

20:30-09:00

1 stop12h 30m

€154

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 9/5

07:25-20:00

2 stops12h 35m

Donegal

Sat 16/5

08:00-19:20

1 stop11h 20m

€154

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 9/5

15:50-20:00

1 stop4h 10m

Donegal

Sat 16/5

08:00-18:20

1 stop10h 20m

€224

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Wed 13/5

15:50-20:00

1 stop4h 10m

Donegal

Wed 20/5

08:00-18:55

1 stop10h 55m

€235

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
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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

3h 45m

Direct flights

None
The fastest flight from London to Donegal takes 3h 45m
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 3h 45m.

  • 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.

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

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