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Cheap flights from London to Donegal from £133

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CFN
18 Feb — 25 Feb1
1 adult
1 adult, Economy, 0 bags

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 January 2026.

Round-trip from

£127

One-way from

£72
30/1-2/2
  • 30/1-2/2
  • 2 total stops
  • 12h 00m total
  • London to Donegal
Search Deals
2/2
  • 2/2
  • 1 total stop
  • 7h 30m total
  • London to Donegal
Search Deals

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 19 January 2026.

Sat 31/121:30
LGW
-
CFN
1 stop15h 05m
Multiple Airlines
Sat 7/214:30
CFN
-
LGW
1 stop5h 15m
Multiple Airlines
Deal found 17/1£137
Mon 16/208:50
LTN
-
CFN
1 stop5h 10m
Multiple Airlines
Mon 23/207:55
CFN
-
LTN
1 stop3h 50m
Multiple Airlines
Deal found 17/1£140
Mon 16/216:10
LGW
-
CFN
1 stop3h 50m
Multiple Airlines
Mon 23/214:30
CFN
-
LGW
1 stop5h 40m
Multiple Airlines
Deal found 17/1£140
Sat 31/121:45
STN
-
CFN
1 stop14h 50m
Multiple Airlines
Sat 7/214:30
CFN
-
STN
1 stop3h 50m
Multiple Airlines
Deal found 17/1£140
Sat 31/112:25
LTN
-
CFN
1 stop7h 35m
Multiple Airlines
Sat 7/214:30
CFN
-
LTN
1 stop5h 40m
Multiple Airlines
Deal found 19/1£140
Sun 15/206:30
STN
-
CFN
1 stop6h 05m
Multiple Airlines
Sun 22/210:00
CFN
-
STN
1 stop21h 50m
Multiple Airlines
Deal found 18/1£140
Sun 15/208:05
LTN
-
CFN
1 stop4h 30m
Multiple Airlines
Sun 22/210:00
CFN
-
LTN
1 stop22h 55m
Multiple Airlines
Deal found 18/1£143
Fri 30/118:15
STN
-
CFN
2 stops25h 45m
Multiple Airlines
Mon 2/207:55
CFN
-
STN
1 stop6h 55m
Multiple Airlines
Deal found 19/1£144
Fri 30/118:50
LGW
-
CFN
2 stops25h 10m
Multiple Airlines
Mon 2/207:55
CFN
-
LGW
1 stop11h 00m
Multiple Airlines
Deal found 19/1£146
Fri 23/113:05
LTN
-
CFN
1 stop6h 55m
Multiple Airlines
Sun 25/110:00
CFN
-
LTN
1 stop6h 05m
Multiple Airlines
Deal found 18/1£152
Fri 23/108:30
STN
-
CFN
1 stop5h 30m
Multiple Airlines
Sun 25/110:00
CFN
-
STN
1 stop23h 50m
Multiple Airlines
Deal found 18/1£152
Fri 23/109:05
LGW
-
CFN
1 stop4h 55m
Multiple Airlines
Sun 25/110:00
CFN
-
LGW
1 stop7h 15m
Multiple Airlines
Deal found 18/1£158

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 January 2026.
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

Sat 31/1

21:30-12:35

1 stop15h 05m

Donegal

Sat 7/2

14:30-19:45

1 stop5h 15m

£137

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Mon 16/2

08:50-14:00

1 stop5h 10m

Donegal

Mon 23/2

07:55-11:45

1 stop3h 50m

£140

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Mon 16/2

16:10-20:00

1 stop3h 50m

Donegal

Mon 23/2

14:30-20:10

1 stop5h 40m

£140

LondonDonegal

STN - CFN

STNCFN

London Stansted

Mon 16/2

21:45-14:00

1 stop16h 15m

Donegal

Mon 23/2

14:30-18:20

1 stop3h 50m

£140

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sat 31/1

21:45-12:35

1 stop14h 50m

Donegal

Sat 7/2

14:30-18:20

1 stop3h 50m

£140

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 31/1

12:25-20:00

1 stop7h 35m

Donegal

Sat 7/2

14:30-20:10

1 stop5h 40m

£140

LondonDonegal

STN - CFN

STNCFN

London Stansted

Sun 15/2

06:30-12:35

1 stop6h 05m

Donegal

Sun 22/2

10:00-07:50

1 stop21h 50m

£140

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sun 15/2

08:05-12:35

1 stop4h 30m

Donegal

Sun 22/2

10:00-08:55

1 stop22h 55m

£143

LondonDonegal

STN - CFN

STNCFN

London Stansted

Fri 30/1

18:15-20:00

2 stops25h 45m

Donegal

Mon 2/2

07:55-14:50

1 stop6h 55m

£144

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Fri 30/1

18:50-20:00

2 stops25h 10m

Donegal

Mon 2/2

07:55-18:55

1 stop11h 00m

£146

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 34 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, January is the cheapest month in which you can book a flight from London to Donegal (average of £25). 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.

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 £172.

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

    When deciding which route to take from London to Donegal consider London Gatwick - Donegal, London Luton - Donegal or London Heathrow - 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, January is the cheapest month in which you can book a flight from London to Donegal (average of £25). 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
Letterkenny
Bundoran
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 19 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£172Average£270FlexibilityNo 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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