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Cheap flights from London to Donegal from €81

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 30/8. 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
1 adult, Economy, 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
06:30 - 14:00
STN
-
CFN
7h 30m
1 stop
Multiple Airlines Logo
07:55 - 21:20
CFN
-
STN
13h 25m
1 stop
€132Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
14:35 - 20:00
STN
-
CFN
5h 25m
1 stop
Multiple Airlines Logo
14:30 - 19:25
CFN
-
STN
4h 55m
1 stop
€133Multiple Airlines
Tue, 28 Jul - Tue, 4 Aug
Multiple Airlines Logo
09:25 - 20:00
LTN
-
CFN
10h 35m
1 stop
Multiple Airlines Logo
07:55 - 13:25
CFN
-
LTN
5h 30m
1 stop
€135Multiple Airlines
Thu, 6 Aug - Mon, 10 Aug
Multiple Airlines Logo
06:15 - 14:00
LTN
-
CFN
7h 45m
1 stop
Multiple Airlines Logo
14:30 - 22:10
CFN
-
LTN
7h 40m
1 stop
€136Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
11:35 - 20:00
STN
-
CFN
8h 25m
1 stop
Multiple Airlines Logo
14:30 - 19:35
CFN
-
STN
5h 05m
1 stop
€136Multiple Airlines
Tue, 4 Aug - Wed, 12 Aug
Multiple Airlines Logo
06:20 - 14:00
LTN
-
CFN
7h 40m
1 stop
Multiple Airlines Logo
07:55 - 14:00
CFN
-
LTN
6h 05m
1 stop
€137Multiple Airlines
Fri, 14 Aug - Sat, 15 Aug
Multiple Airlines Logo
11:05 - 20:00
LGW
-
CFN
8h 55m
1 stop
Multiple Airlines Logo
14:30 - 20:15
CFN
-
LGW
5h 45m
1 stop
€137Multiple Airlines
Thu, 6 Aug - Wed, 12 Aug
Multiple Airlines Logo
06:30 - 20:00
STN
-
CFN
13h 30m
1 stop
Multiple Airlines Logo
14:30 - 23:20
CFN
-
STN
8h 50m
1 stop
€137Multiple Airlines
Thu, 6 Aug - Wed, 12 Aug
Aer Lingus Logo
15:10 - 20:00
LHR
-
CFN
4h 50m
1 stop
Aer Lingus Logo
14:30 - 19:25
CFN
-
LHR
4h 55m
1 stop
€236Aer Lingus
Thu, 13 Aug - Sat, 15 Aug
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
07:55 - 20:55
CFN
-
LHR
13h 00m
1 stop
€245Aer Lingus
Thu, 30 Jul - Sun, 2 Aug

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Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
13 Aug
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
15 Aug
CFN14:30Donegal
4h 55m
1 stop
LHR19:25London Heathrow
€236
Aer Lingus
30 Jul
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
2 Aug
CFN07:55Donegal
13h 00m
1 stop
LHR20:55London Heathrow
€245
Aer Lingus
28 Jul
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
4 Aug
CFN07:55Donegal
12h 25m
1 stop
LHR20:20London Heathrow
€252

British Airways flights from London to Donegal

Our best British Airways deals on London to Donegal flight tickets
British Airways
10 Oct
LHR08:15London Heathrow
5h 45m
1 stop
CFN14:00Donegal
14 Oct
CFN14:30Donegal
6h 30m
1 stop
LHR21:00London Heathrow
€444
British Airways
10 Oct
LHR08:15London Heathrow
5h 45m
1 stop
CFN14:00Donegal
14 Oct
CFN14:30Donegal
7h 15m
1 stop
LHR21:45London Heathrow
€444
British Airways
11 Oct
LHR12:55London Heathrow
25h 05m
1 stop
CFN14:00Donegal
15 Oct
CFN14:30Donegal
5h 35m
1 stop
LHR20:05London Heathrow
€466

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 1 July 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

Thu 6/8

06:30-14:00

1 stop7h 30m

Donegal

Mon 10/8

07:55-21:20

1 stop13h 25m

€132

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 28/7

14:35-20:00

1 stop5h 25m

Donegal

Tue 4/8

14:30-19:25

1 stop4h 55m

€133

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Thu 6/8

09:25-20:00

1 stop10h 35m

Donegal

Mon 10/8

07:55-13:25

1 stop5h 30m

€135

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Wed 12/8

06:15-14:00

1 stop7h 45m

Donegal

Wed 19/8

14:30-22:10

1 stop7h 40m

€136

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 4/8

11:35-20:00

1 stop8h 25m

Donegal

Wed 12/8

14:30-19:35

1 stop5h 05m

€136

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Fri 14/8

06:20-14:00

1 stop7h 40m

Donegal

Sat 15/8

07:55-14:00

1 stop6h 05m

€137

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Thu 6/8

11:05-20:00

1 stop8h 55m

Donegal

Wed 12/8

14:30-20:15

1 stop5h 45m

€137

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 6/8

06:30-20:00

1 stop13h 30m

Donegal

Wed 12/8

14:30-23:20

1 stop8h 50m

€137
Fastest return journey

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 13/8

15:10-20:00

1 stop4h 50m

Donegal

Sat 15/8

14:30-19:25

1 stop4h 55m

€236

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 30/7

15:50-20:00

1 stop4h 10m

Donegal

Sun 2/8

07:55-20:55

1 stop13h 00m

€245

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 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

Frequently asked questions about flying from London to Donegal

  • 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 4h 10m.

  • 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.

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