Cheap flights from London to Donegal from £114

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CFN
24 Aug — 31 Aug1
1 adult

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 19 August 2025.

Round-trip from

£114

Popular in

June

Cheapest in

August

Average price

£264
2/10-9/10
  • 2/10-9/10
  • 2 total stops
  • 11h 40m total
  • London to Donegal
Highest demand for flights based on searches. 14% potential increase in price (£43 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from London to Donegal

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 19 August 2025.

Thu 2/1014:50STN - CFN
1 stop5h 10mMultiple Airlines
Thu 9/1007:55CFN - STN
1 stop6h 30mMultiple Airlines
Deal found 18/8£114
Wed 1/1014:50STN - CFN
1 stop5h 10mMultiple Airlines
Wed 8/1007:55CFN - STN
1 stop6h 25mMultiple Airlines
Deal found 19/8£115
Wed 1/1015:35LGW - CFN
1 stop4h 25mMultiple Airlines
Wed 8/1007:55CFN - LGW
1 stop9h 05mMultiple Airlines
Deal found 19/8£117
Thu 2/1008:45LTN - CFN
1 stop5h 15mMultiple Airlines
Thu 9/1014:30CFN - LTN
1 stop6h 15mMultiple Airlines
Deal found 18/8£117
Sat 6/916:10LTN - CFN
1 stop3h 50mMultiple Airlines
Mon 8/914:30CFN - LTN
1 stop7h 00mMultiple Airlines
Deal found 18/8£118
Sat 6/914:45STN - CFN
1 stop5h 15mMultiple Airlines
Mon 8/907:55CFN - STN
1 stop9h 00mMultiple Airlines
Deal found 18/8£120
Sat 6/913:15LGW - CFN
1 stop6h 45mMultiple Airlines
Mon 8/914:30CFN - LGW
1 stop6h 25mMultiple Airlines
Deal found 18/8£122
Wed 1/1010:00LTN - CFN
1 stop4h 00mMultiple Airlines
Wed 8/1007:55CFN - LTN
1 stop4h 40mMultiple Airlines
Deal found 19/8£123
Thu 2/1009:45LGW - CFN
1 stop4h 15mMultiple Airlines
Thu 9/1014:30CFN - LGW
1 stop5h 40mMultiple Airlines
Deal found 18/8£126
Wed 1/1006:15LHR - CFN
1 stop7h 45mMultiple Airlines
Wed 8/1007:55CFN - LHR
1 stop4h 35mMultiple Airlines
Deal found 17/8£151
Thu 2/1016:10LHR - CFN
1 stop3h 50mMultiple Airlines
Thu 9/1007:55CFN - LHR
1 stop4h 35mMultiple Airlines
Deal found 18/8£154
Fri 29/822:00LGW - CFN
1 stop16h 00mMultiple Airlines
Mon 1/914:30CFN - LGW
1 stop5h 25mMultiple Airlines
Deal found 18/8£187

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 19 August 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

STN - CFN

STNCFN

London Stansted

Thu 2/10

14:50-20:00

1 stop5h 10m

Donegal

Thu 9/10

07:55-14:25

1 stop6h 30m

£114

LondonDonegal

STN - CFN

STNCFN

London Stansted

Wed 1/10

14:50-20:00

1 stop5h 10m

Donegal

Wed 8/10

07:55-14:20

1 stop6h 25m

£115

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Wed 1/10

15:35-20:00

1 stop4h 25m

Donegal

Wed 8/10

07:55-17:00

1 stop9h 05m

£117

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Thu 2/10

08:45-14:00

1 stop5h 15m

Donegal

Thu 9/10

14:30-20:45

1 stop6h 15m

£117

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 6/9

16:10-20:00

1 stop3h 50m

Donegal

Mon 8/9

14:30-21:30

1 stop7h 00m

£118

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 6/9

14:45-20:00

1 stop5h 15m

Donegal

Mon 8/9

07:55-16:55

1 stop9h 00m

£120

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Sat 6/9

13:15-20:00

1 stop6h 45m

Donegal

Mon 8/9

14:30-20:55

1 stop6h 25m

£122

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Wed 1/10

10:00-14:00

1 stop4h 00m

Donegal

Wed 8/10

07:55-12:35

1 stop4h 40m

£123

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Thu 2/10

09:45-14:00

1 stop4h 15m

Donegal

Thu 9/10

14:30-20:10

1 stop5h 40m

£126

LondonDonegal

LHR - CFN

LHRCFN

London Heathrow

Wed 1/10

06:15-14:00

1 stop7h 45m

Donegal

Wed 8/10

07:55-12:30

1 stop4h 35m

£151

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 30 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 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 19 August 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 9% on flights from London to Donegal by exploring options for tickets in the morning.

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 12h 20m. 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 £170. Aer Lingus is priced at 48% lower than the current average price of a flight leaving 3 months from now.

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

  • 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.

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

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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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£170Average£238FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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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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