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Cheap flights from London to Donegal from £73

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CFN
17 Apr — 24 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 18 March 2026.

Fri 10/422:50
STN
-
CFN
1 stop8h 45m
Multiple Airlines
Mon 13/408:00
CFN
-
STN
1 stop4h 55m
Multiple Airlines
Deal found 17/3£129
Fri 10/422:00
LGW
-
CFN
1 stop9h 35m
Multiple Airlines
Mon 13/408:00
CFN
-
LGW
1 stop4h 45m
Multiple Airlines
Deal found 17/3£135
Sat 11/421:25
LTN
-
CFN
1 stop10h 10m
Multiple Airlines
Sat 18/420:30
CFN
-
LTN
1 stop4h 00m
Multiple Airlines
Deal found 14/3£140
Thu 30/406:30
STN
-
CFN
1 stop13h 30m
Multiple Airlines
Thu 7/508:00
CFN
-
STN
1 stop11h 30m
Multiple Airlines
Deal found 16/3£140
Tue 28/416:10
LTN
-
CFN
1 stop3h 50m
Multiple Airlines
Tue 5/520:30
CFN
-
LTN
1 stop12h 45m
Multiple Airlines
Deal found 14/3£143
Thu 30/418:25
LGW
-
CFN
1 stop13h 10m
Multiple Airlines
Thu 7/508:00
CFN
-
LGW
1 stop9h 05m
Multiple Airlines
Deal found 16/3£143
Tue 14/413:15
STN
-
CFN
1 stop6h 45m
Multiple Airlines
Tue 21/408:00
CFN
-
STN
1 stop6h 40m
Multiple Airlines
Deal found 17/3£143
Thu 30/413:00
LTN
-
CFN
1 stop7h 00m
Multiple Airlines
Thu 7/508:00
CFN
-
LTN
1 stop4h 35m
Multiple Airlines
Deal found 15/3£143
Sat 21/322:30
LGW
-
CFN
1 stop13h 55m
Multiple Airlines
Sat 28/307:55
CFN
-
LGW
1 stop11h 50m
Multiple Airlines
Deal found 17/3£144
Tue 28/422:00
STN
-
CFN
1 stop9h 35m
Multiple Airlines
Tue 5/508:00
CFN
-
STN
1 stop4h 50m
Multiple Airlines
Deal found 14/3£144
Tue 24/309:00
LTN
-
CFN
1 stop5h 00m
Multiple Airlines
Thu 26/314:30
CFN
-
LTN
1 stop8h 35m
Multiple Airlines
Deal found 16/3£146
Tue 24/308:50
LGW
-
CFN
1 stop5h 10m
Multiple Airlines
Thu 26/307:55
CFN
-
LGW
1 stop9h 25m
Multiple Airlines
Deal found 16/3£152

Find 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 18 March 2026.

Round-trip from

£129

One-way from

£73
10/4-13/4
  • 10/4-13/4
  • 2 total stops
  • 13h 40m total
  • London to Donegal
Search Deals
13/5
  • 13/5
  • 1 total stop
  • 6h 10m 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 18 March 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

Fri 10/4

22:50-07:35

1 stop8h 45m

Donegal

Mon 13/4

08:00-12:55

1 stop4h 55m

£129

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Fri 10/4

22:00-07:35

1 stop9h 35m

Donegal

Mon 13/4

08:00-12:45

1 stop4h 45m

£135

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Sat 11/4

21:25-07:35

1 stop10h 10m

Donegal

Sat 18/4

20:30-00:30

1 stop4h 00m

£140

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Tue 14/4

13:10-20:00

1 stop6h 50m

Donegal

Tue 21/4

08:00-12:45

1 stop4h 45m

£140

LondonDonegal

STN - CFN

STNCFN

London Stansted

Thu 30/4

06:30-20:00

1 stop13h 30m

Donegal

Thu 7/5

08:00-19:30

1 stop11h 30m

£140

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Tue 28/4

16:10-20:00

1 stop3h 50m

Donegal

Tue 5/5

20:30-09:15

1 stop12h 45m

£143

LondonDonegal

LTN - CFN

LTNCFN

London Luton

Thu 30/4

13:00-20:00

1 stop7h 00m

Donegal

Thu 7/5

08:00-12:35

1 stop4h 35m

£143

LondonDonegal

LGW - CFN

LGWCFN

London Gatwick

Thu 30/4

18:25-07:35

1 stop13h 10m

Donegal

Thu 7/5

08:00-17:05

1 stop9h 05m

£143

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 14/4

13:15-20:00

1 stop6h 45m

Donegal

Tue 21/4

08:00-14:40

1 stop6h 40m

£143

LondonDonegal

STN - CFN

STNCFN

London Stansted

Tue 28/4

22:00-07:35

1 stop9h 35m

Donegal

Tue 5/5

08:00-12:50

1 stop4h 50m

£144

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 46 resultsSorted by cheapest first
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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, June is the cheapest month in which you can book a flight from London to Donegal (average of £28). 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 4h 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 Luton - Donegal or London City - 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, June is the cheapest month in which you can book a flight from London to Donegal (average of £28). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£173Average£271FlexibilityNo 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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