LON - CFN

Find Cheap Flights from London to Donegal – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Top routes
LTN - CFN
Cheapest • 26% average savings
LGW - CFN
Most popular
Insights
Insights
When to travel
September
Cheapest • 20% price drop
September
Most popular
Good to know
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Good to know
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Cheap Flights from London to Donegal (LON-CFN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Donegal

Multiple Airlines Logo
LON  London All airports-CFN Donegal Airport
1082 kmmulti-stop
Multiple Airlines Logo
CFN  Donegal Airport-LON London All airports
1082 kmmulti-stop
Multiple Airlines
Booking Insights

Price, demand, and travel trends for London to Donegal flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest London to Donegal flight route?

London Luton Airport (LTN) to Donegal (CFN) is the cheapest London to Donegal route, averaging €160 return. Other London to Donegal routes average €235, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from London to Donegal?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from London to Donegal. It's 32% cheaper than the average day, while Tuesday is the most expensive, with prices 99% higher.

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Key details for London to Donegal flights

Low season

June
Beat the crowds with an average 88% drop in travellers.
The most popular month to fly with an average 80% increase in travellers.

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

Your London to Donegal flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Do I need a passport to fly from London to Donegal?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London to Donegal flight?

    Return flights from London to Donegal range from €173 to €286, with an average of €211 over the past 12 months. Anything below €173 counts as a good deal.

  • Which airports can I use when flying from London to Donegal?

    Flights from London to Donegal may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Donegal (CFN).

  • Which airports do connecting flights from London to Donegal pass through?

    Most connecting flights from London to Donegal pass through Dublin (DUB), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from London to Donegal?

    Yes. Flexible dates can save you up to 66% on flights from London to Donegal. Wednesday is the cheapest departure day at €144 return on average, while Tuesday is the most expensive at €420, a difference of €277.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Your guide to booking London to Donegal flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Tuesday. On this route, Wednesday flights average €144, about €277 less than Tuesday fares (66% savings) based on the last 12 months.
  • If you can choose when to travel, plan your London to Donegal trip for September. Fares historically average €169 return in that month – typically €208 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from London to Donegal

Complete your trip to Donegal with a hotel stay or car hire

Car hire in Donegal
Hotels in Donegal
Holidays in Donegal