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Cheap flights from London to Donegal from £125

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CFN
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from London to Donegal

Enter your travel dates to find the best prices.

Cheapest flights from London to Donegal
Explore the most affordable flight options available from London to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.

Tue 25/1111:25LGW - CFN
1 stop8h 35mMultiple Airlines
Tue 2/1207:55CFN - LGW
1 stop9h 25mMultiple Airlines
Deal found 26/10£125
Tue 25/1106:30STN - CFN
1 stop7h 30mMultiple Airlines
Tue 2/1207:55CFN - STN
1 stop6h 25mMultiple Airlines
Deal found 26/10£125
Sat 1/1122:30LGW - CFN
1 stop14h 05mMultiple Airlines
Wed 5/1114:30CFN - LGW
1 stop4h 00mMultiple Airlines
Deal found 26/10£134
Sat 1/1115:15STN - CFN
1 stop4h 45mMultiple Airlines
Wed 5/1114:30CFN - STN
1 stop6h 50mMultiple Airlines
Deal found 26/10£137
Wed 10/1206:50LTN - CFN
1 stop7h 10mMultiple Airlines
Wed 17/1214:30CFN - LTN
1 stop5h 35mMultiple Airlines
Deal found 26/10£138
Sat 1/1112:25LTN - CFN
1 stop7h 35mMultiple Airlines
Wed 5/1114:30CFN - LTN
1 stop5h 35mMultiple Airlines
Deal found 26/10£158
Tue 16/1206:30STN - CFN
1 stop7h 30mMultiple Airlines
Sun 21/1213:00CFN - STN
1 stop7h 05mMultiple Airlines
Deal found 27/10£158
Tue 16/1208:50LGW - CFN
1 stop5h 10mMultiple Airlines
Sun 21/1213:00CFN - LGW
1 stop8h 10mMultiple Airlines
Deal found 27/10£159
Wed 10/1221:40LGW - CFN
1 stop16h 20mMultiple Airlines
Wed 17/1214:30CFN - LGW
1 stop5h 00mMultiple Airlines
Deal found 26/10£164
Wed 10/1206:30STN - CFN
1 stop7h 30mMultiple Airlines
Wed 17/1207:55CFN - STN
1 stop6h 25mMultiple Airlines
Deal found 26/10£165
Tue 16/1209:00LTN - CFN
1 stop5h 00mMultiple Airlines
Sun 21/1213:00CFN - LTN
1 stop5h 15mMultiple Airlines
Deal found 27/10£170
Wed 10/1215:15LHR - CFN
2 stops22h 45mMultiple Airlines
Wed 17/1214:30CFN - LHR
1 stop5h 20mMultiple Airlines
Deal found 26/10£194

Cheap flight deals from London to Donegal

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Donegal (CFN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 October 2025.

Round-trip from

£125
25/11-2/12
  • 25/11-2/12
  • 2 total stops
  • 18h 00m total
  • London to Donegal
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 28 October 2025.
Use the filters below to find and compare flights from London to Donegal that are best for you.

Fly from

London

Fly to

Donegal

Route

Depart

Return

Price

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Tue 25/11

11:25-20:00

1 stop8h 35m

Donegal

Tue 2/12

07:55-17:20

1 stop9h 25m

£125

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 25/11

06:30-14:00

1 stop7h 30m

Donegal

Tue 2/12

07:55-14:20

1 stop6h 25m

£125

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Wed 10/12

06:50-14:00

1 stop7h 10m

Donegal

Wed 17/12

14:30-20:05

1 stop5h 35m

£138

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 16/12

06:30-14:00

1 stop7h 30m

Donegal

Sun 21/12

13:00-20:05

1 stop7h 05m

£158

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Tue 16/12

08:50-14:00

1 stop5h 10m

Donegal

Sun 21/12

13:00-21:10

1 stop8h 10m

£159

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Wed 10/12

21:40-14:00

1 stop16h 20m

Donegal

Wed 17/12

14:30-19:30

1 stop5h 00m

£164

LondonDonegal

STN - CFN

STNCFN

London Stansted

Wed 10/12

06:30-14:00

1 stop7h 30m

Donegal

Wed 17/12

07:55-14:20

1 stop6h 25m

£165

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Tue 16/12

09:00-14:00

1 stop5h 00m

Donegal

Sun 21/12

13:00-18:15

1 stop5h 15m

£170

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Wed 10/12

15:15-14:00

2 stops22h 45m

Donegal

Wed 17/12

14:30-19:50

1 stop5h 20m

£194

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Wed 10/12

07:50-14:00

1 stop6h 10m

Donegal

Wed 17/12

07:55-15:35

1 stop7h 40m

£211

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 23 results
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Best time to book a flight from London to Donegal

Have a flexible travel schedule? Discover the best time to fly to Donegal from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from London to Donegal?

Currently, December is the cheapest month in which you can book a flight from London to Donegal (average of £17). Flying from London to Donegal in August is currently the most expensive (average of £37). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to CFN?

Find hourly flight availability from London to Donegal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 October 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 22% on flights from London to Donegal by exploring options for tickets at midday.

Related info for your journey

Find useful and relevant information for your journey from London to Donegal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Donegal from London?

    For a flight from London to Donegal, you will be flying into Donegal. Donegal (CFN) is just 28.5 mi from the center of the city. Donegal is the only Donegal airport and it handles 0 inbound flights from London per day. 1 airline has flights to Donegal from London on a regular basis.

  • How long is the flight from London to Donegal?

    Airlines like Aer Lingus fly from London to Donegal in about 6h 10m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 408 mi.

  • What is the cheapest airline to fly from London to Donegal round-trip?

    Cheapflights users have booked flights from London to Donegal round-trip from £173.

  • What are the most popular routes from London to Donegal?

    When deciding which route to take from London to Donegal consider London Heathrow - Donegal, London City - Donegal or London Gatwick - Donegal as they are the most popular.

  • Can I find deals for flights from London to Donegal that include hotel bookings?

    Yes. In addition to deals on London to Donegal flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Donegal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Donegal.

  • Can I find deals for business class flights from London to Donegal?

    Yes. Cheapflights offers flight deals from London to Donegal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Donegal?

    Currently, December is the cheapest month in which you can book a flight from London to Donegal (average of £17). Flying from London to Donegal in August is currently the most expensive (average of £37). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Donegal?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Donegal

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Donegal

Discover the top airline that operate flights from London to Donegal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£173Average£290FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Donegal?

When you search for this flight from London to Donegal, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Donegal?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Donegal for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Donegal with no change fees?

Yes! Cheapflights helps users easily find flights from London to Donegal with no change fees.

Can Cheapflights notify me if prices for flights from London to Donegal become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Donegal from London today and book when prices fit your budget.

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