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Cheap flights from London to Donegal from £88

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 8/7. 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 - 20:00
STN
-
CFN
13h 30m
1 stop
Multiple Airlines Logo
14:30 - 23:20
CFN
-
STN
8h 50m
1 stop
£116Multiple Airlines
Wed, 1 Jul - Wed, 8 Jul
Multiple Airlines Logo
06:15 - 14:00
LTN
-
CFN
7h 45m
1 stop
Multiple Airlines Logo
07:55 - 15:30
CFN
-
LTN
7h 35m
1 stop
£117Multiple Airlines
Wed, 1 Jul - Wed, 8 Jul
Multiple Airlines Logo
06:30 - 14:00
STN
-
CFN
7h 30m
1 stop
Multiple Airlines Logo
14:30 - 23:20
CFN
-
STN
8h 50m
1 stop
£117Multiple Airlines
Wed, 1 Jul - Wed, 8 Jul
Multiple Airlines Logo
06:15 - 14:00
LTN
-
CFN
7h 45m
1 stop
Multiple Airlines Logo
07:55 - 15:30
CFN
-
LTN
7h 35m
1 stop
£119Multiple Airlines
Wed, 1 Jul - Wed, 8 Jul
Aer Lingus Logo
15:50 - 20:00
LHR
-
CFN
4h 10m
1 stop
Aer Lingus Logo
14:30 - 20:20
CFN
-
LHR
5h 50m
1 stop
£198Aer Lingus
Sat, 22 Aug - Sat, 29 Aug
Aer Lingus Logo
15:10 - 20:00
LHR
-
CFN
4h 50m
1 stop
Aer Lingus Logo
07:55 - 20:20
CFN
-
LHR
12h 25m
1 stop
£210Aer Lingus
Sat, 25 Jul - Sat, 1 Aug
Aer Lingus Logo
15:10 - 20:00
LHR
-
CFN
4h 50m
1 stop
Aer Lingus Logo
07:55 - 20:20
CFN
-
LHR
12h 25m
1 stop
£214Aer Lingus
Thu, 16 Jul - Thu, 23 Jul
British Airways Logo
13:45 - 14:00
LCY
-
CFN
24h 15m
1 stop
British Airways Logo
14:30 - 21:35
CFN
-
LCY
7h 05m
1 stop
£473British Airways
Wed, 22 Jul - Wed, 29 Jul
British Airways Logo
13:45 - 14:00
LCY
-
CFN
24h 15m
1 stop
British Airways Logo
14:30 - 21:35
CFN
-
LCY
7h 05m
1 stop
£514British Airways
Thu, 16 Jul - Thu, 23 Jul
British Airways Logo
13:45 - 14:00
LCY
-
CFN
24h 15m
1 stop
British Airways Logo
14:30 - 21:35
CFN
-
LCY
7h 05m
1 stop
£517British Airways
Thu, 16 Jul - Thu, 23 Jul

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Aer Lingus flights from London to Donegal

Our best Aer Lingus deals on London to Donegal flight tickets
Aer Lingus
22 Aug
LHR15:50London Heathrow
4h 10m
1 stop
CFN20:00Donegal
29 Aug
CFN14:30Donegal
5h 50m
1 stop
LHR20:20London Heathrow
£198
Aer Lingus
25 Jul
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
1 Aug
CFN07:55Donegal
12h 25m
1 stop
LHR20:20London Heathrow
£210
Aer Lingus
16 Jul
LHR15:10London Heathrow
4h 50m
1 stop
CFN20:00Donegal
23 Jul
CFN07:55Donegal
12h 25m
1 stop
LHR20:20London Heathrow
£214

British Airways flights from London to Donegal

Our best British Airways deals on London to Donegal flight tickets
British Airways
23 Jul
LHR06:20London Heathrow
7h 40m
1 stop
CFN14:00Donegal
29 Jul
CFN14:30Donegal
7h 15m
1 stop
LHR21:45London Heathrow
£378
British Airways
3 Dec
LHR06:30London Heathrow
13h 30m
1 stop
CFN20:00Donegal
7 Dec
CFN08:00Donegal
4h 20m
1 stop
LHR12:20London Heathrow
£380
British Airways
3 Dec
LHR06:30London Heathrow
7h 30m
1 stop
CFN14:00Donegal
7 Dec
CFN08:00Donegal
11h 15m
1 stop
LHR19:15London Heathrow
£381

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 11 June 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

Wed 1/7

06:30-20:00

1 stop13h 30m

Donegal

Wed 8/7

14:30-23:20

1 stop8h 50m

£116

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Wed 1/7

06:15-14:00

1 stop7h 45m

Donegal

Wed 8/7

07:55-15:30

1 stop7h 35m

£117

LondonDonegal

STN - CFN

STNCFN

London Stansted

Wed 1/7

06:30-14:00

1 stop7h 30m

Donegal

Wed 8/7

14:30-23:20

1 stop8h 50m

£117

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Wed 1/7

06:15-14:00

1 stop7h 45m

Donegal

Wed 8/7

07:55-15:30

1 stop7h 35m

£119
Fastest return journey

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 22/8

15:50-20:00

1 stop4h 10m

Donegal

Sat 29/8

14:30-20:20

1 stop5h 50m

£198

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Sat 25/7

15:10-20:00

1 stop4h 50m

Donegal

Sat 1/8

07:55-20:20

1 stop12h 25m

£210

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Thu 16/7

15:10-20:00

1 stop4h 50m

Donegal

Thu 23/7

07:55-20:20

1 stop12h 25m

£214

LondonDonegal

LCY - CFN

LCYCFN

London City

Wed 22/7

13:45-14:00

1 stop24h 15m

Donegal

Wed 29/7

14:30-21:35

1 stop7h 05m

£473

LondonDonegal

LCY - CFN

LCYCFN

London City

Thu 16/7

13:45-14:00

1 stop24h 15m

Donegal

Thu 23/7

14:30-21:35

1 stop7h 05m

£514

LondonDonegal

LCY - CFN

LCYCFN

London City

Thu 16/7

13:45-14:00

1 stop24h 15m

Donegal

Thu 23/7

14:30-21:35

1 stop7h 05m

£517

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 05m

Direct flights

None
The fastest flight from London to Donegal takes 4h 05m
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?

    There are 396.1 mi between London and Donegal. Flights usually cover this in 4h 05m, 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 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.

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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