LON - CFN

£116 Find Cheap Flights from London to Donegal

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Donegal departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Donegal

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Donegal, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Donegal, as well as popular online travel agencies
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Flight Deals

Cheap Flights from London to Donegal (LON-CFN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Donegal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Donegal

Wed, 8 Oct - Wed, 15 Oct
Logo
10:35 - 20:00STN-CFN
9h 25m1 stop
Logo
07:55 - 18:10CFN-STN
10h 15m1 stop
£116
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Wed, 8 Oct - Wed, 15 Oct
Logo
10:00 - 20:00LTN-CFN
10h 00m1 stop
Logo
07:55 - 12:35CFN-LTN
4h 40m1 stop
£118
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Wed, 8 Oct - Wed, 15 Oct
Logo
08:50 - 14:00LGW-CFN
5h 10m1 stop
Logo
07:55 - 15:10CFN-LGW
7h 15m1 stop
£127
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Thu, 9 Oct - Sun, 12 Oct
Aer Lingus Logo
08:50 - 20:00LHR-CFN
11h 10m1 stop
Aer Lingus Logo
10:00 - 20:55CFN-LHR
10h 55m1 stop
£317Aer Lingus
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Thu, 9 Oct - Sun, 12 Oct
Aer Lingus Logo
13:25 - 20:00LHR-CFN
6h 35m1 stop
Aer Lingus Logo
10:00 - 20:55CFN-LHR
10h 55m1 stop
£319Aer Lingus
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Thu, 11 Sep - Sun, 14 Sep
Aer Lingus Logo
15:10 - 20:00LHR-CFN
4h 50m1 stop
Aer Lingus Logo
10:00 - 08:00CFN-LHR
22h 00m1 stop
£321Aer Lingus
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Thu, 9 Oct - Sun, 12 Oct
Aer Lingus Logo
07:40 - 20:00LHR-CFN
12h 20m1 stop
Aer Lingus Logo
10:00 - 14:55CFN-LHR
4h 55m1 stop
£322Aer Lingus
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Tue, 7 Oct - Tue, 14 Oct
British Airways Logo
14:40 - 20:00LCY-CFN
5h 20m1 stop
British Airways Logo
14:30 - 21:40CFN-LCY
7h 10m1 stop
£444British Airways
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Thu, 9 Oct - Sun, 12 Oct
British Airways Logo
14:40 - 20:00LCY-CFN
5h 20m1 stop
British Airways Logo
13:20 - 21:20CFN-LCY
8h 00m1 stop
£596British Airways
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Thu, 9 Oct - Sun, 12 Oct
British Airways Logo
14:40 - 20:00LCY-CFN
5h 20m1 stop
British Airways Logo
13:20 - 21:20CFN-LCY
8h 00m1 stop
£599British Airways
Find Deal
Booking Insights

KAYAK's insights & trends for London to Donegal flights

Get data-powered insights and trends into flights from London to Donegal to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from London to Donegal?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from London to Donegal were found on Aer Lingus (£317) and British Airways (£444).

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Good to know - Cheap tickets from London to Donegal

Low seasonAugust
Cheapest flight£116
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 20% lower on average.
Flight from London Stansted Airport to Donegal

When to book flights from London to Donegal

Are your dates flexible? Find out the best times to travel from London to Donegal based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Donegal

  • What is the cheapest flight from London to Donegal?

    In the last 3 days, the lowest price for a flight from London to Donegal was £156 for a return ticket.

  • Which airports will I be using when flying from London to Donegal?

    There are 4 airports in London (London City, London Luton, London Southend, and London Stansted.) and only 1 airport in Donegal (Donegal). The cheapest flights are generally found on the London Heathrow Airport to Donegal flight route.

  • Which aircraft models fly most regularly from London to Donegal?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Donegal?

    oneworld is the only airline alliance operating flights between London and Donegal.

  • How does KAYAK find such low prices on flights from London to Donegal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Donegal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Donegal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Donegal from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Donegal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Donegal with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Donegal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Donegal from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from London to Donegal

 
See real verified KAYAK customer reviews for airlines flying from London to Donegal. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Donegal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1237 reviews
6.9Entertainment
7.1Comfort
8.0Crew
6.5Food
7.3Boarding
Airline reviews

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

10.0 ExcellentKimberly, Aug 2025EDI - DUB
Read more Aer Lingus reviews

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

Overall it was good experience and it was my first trip with Aer Lingus. One thing I was embarrassed was that someone occupied my seat so I was asked to use another seat. Due to this unhappy happening I almost missed the connecting flight because the random seat was far from the flight door. Food was fine, I liked the macaroni and cheese with fresh bread.

I was very disappointed that the online sys allowed me to get the boarding pass for the second leg of the trip, when I clearly request it for both flights!

It was my first transatlantic flight with Aer Lingus. Very enjoyable. Thank you for making international travel enjoyable again.

Excellent as far as the flight is concerned. Faro airport passport check was a huge delay and worrisome re missing the flight. 45 minutes there through passport control

The space between seats has reduced even further making it extremely uncomfortable. Couldn't even open the tray table properly or got compressed the moment the front guy reclined.

Everything you need to know for your flight from London to Donegal

Information on your arrival and departure airports

Donegal (CFN)

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