How long is the flight from London Heathrow Airport to Donegal?

Airlines like Aer Lingus fly from London Heathrow Airport 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.

In terms of precipitation, rainfall in Donegal ranges from 58.0 - 118.0 inches per month. October is typically the wettest month, when rainfall can reach 118.0 mm. April is typically the driest time to visit Donegal when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Donegal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 14.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Donegal as you normally would.

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

Donegal (CFN) is the airport you will fly into if you book a flight from London Heathrow to Donegal. You should not have trouble finding flights to Donegal from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Donegal airport from London Heathrow. It is only a 28.5 mi journey from Donegal (CFN) to Donegal’s city center.

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

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

How can I find direct flights from Heathrow to Donegal?

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

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

Yes. Cheapflights offers flight deals from Heathrow 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.

£168+ Cheap Flights from London Heathrow Airport to Donegal

Cheap flight deals from Heathrow to Donegal

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Heathrow to Donegal
Explore the most affordable flight options available from Heathrow to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 October 2026.

Wed 2/1209:50 -

1 stop4h 10m

Wed 9/1214:30 -

1 stop5h 20m

Deal found 18/10£168

Thu 26/1107:50 -

1 stop6h 10m

Wed 2/1207:55 -

1 stop8h 55m

Deal found 19/10£179

Thu 19/1115:10 -

1 stop4h 50m

Thu 26/1107:55 -

1 stop8h 55m

Deal found 20/10£188

Thu 3/1212:10 -

1 stop7h 50m

Thu 10/1207:55 -

1 stop7h 40m

Deal found 19/10£193

Mon 23/1108:50 -

1 stop5h 10m

Mon 30/1114:30 -

1 stop17h 35m

Deal found 20/10£199

Fri 6/1107:50 -

1 stop6h 10m

Sun 8/1107:55 -

1 stop5h 30m

Deal found 22/10£208

Find flight deals from Heathrow to Donegal

Round-trip from	£168

Aer Lingus
2/12-9/12
2 total stops
9h 30m total
London to Donegal

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Thu 26/11

07:50-14:00

1 stop6h 10m

Donegal

Wed 2/12

07:55-16:50

1 stop8h 55m

£179

Fastest return journey

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Wed 2/12

09:50-14:00

1 stop4h 10m

Donegal

Wed 9/12

14:30-19:50

1 stop5h 20m

£188

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Thu 3/12

12:10-20:00

1 stop7h 50m

Donegal

Thu 10/12

07:55-15:35

1 stop7h 40m

£193

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Sat 5/12

08:50-14:00

1 stop5h 10m

Donegal

Sat 12/12

07:55-17:50

1 stop9h 55m

£200

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Fri 6/11

07:50-14:00

1 stop6h 10m

Donegal

Sun 8/11

07:55-13:25

1 stop5h 30m

£208

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Sat 7/11

08:50-14:00

1 stop5h 10m

Donegal

Sat 14/11

07:55-17:50

1 stop9h 55m

£229

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Sat 5/12

20:50-20:00

3 stops23h 10m

Donegal

Sat 12/12

07:55-17:50

1 stop9h 55m

£240

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Sat 21/11

07:50-14:00

1 stop6h 10m

Donegal

Sat 28/11

14:30-19:50

1 stop5h 20m

£249

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Wed 23/12

20:45-14:00

1 stop17h 15m

Donegal

Tue 5/1

14:30-19:50

1 stop5h 20m

£267

LondonDonegal

LHR London Heathrow - CFN Donegal

LHRCFN

London Heathrow

Wed 2/12

17:35-14:00

3 stops20h 25m

Donegal

Wed 9/12

14:30-19:50

1 stop5h 20m

£287

Flights are sorted by cheapest return flights first.

Deals found on 19/10

Sorted by cheapest first

Best time to book a flight from Heathrow to Donegal

Have a flexible travel schedule? Discover the best time to fly to Donegal from Heathrow with our price prediction graph.

LHR-CFN

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.

Related info for your journey

What airport do you fly into for flights to Donegal from London Heathrow?
Donegal (CFN) is the airport you will fly into if you book a flight from London Heathrow to Donegal. You should not have trouble finding flights to Donegal from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Donegal airport from London Heathrow. It is only a 28.5 mi journey from Donegal (CFN) to Donegal’s city center.
How long is the flight from London Heathrow Airport to Donegal?
Airlines like Aer Lingus fly from London Heathrow Airport 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.
Can I find deals for flights from Heathrow to Donegal that include hotel bookings?
Yes. In addition to deals on Heathrow to Donegal flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Donegal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Donegal.
Can I find deals for business class flights from Heathrow to Donegal?
Yes. Cheapflights offers flight deals from Heathrow 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

Letterkenny

Bundoran

Killybegs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Ireland

Flights by cabin class

Other flight options

Other flights from Heathrow

Popular flights

Alternative routes for Heathrow to Donegal

Gatwick to Dublin flights

Stansted to Dublin flights

Luton to Dublin flights

Heathrow to Dublin flights

Southend to Dublin flights

London City to Dublin flights

London City to Cork flights

Stansted to Cork flights

Gatwick to Cork flights

Stansted to Shannon flights

Gatwick to Shannon flights

Heathrow to Shannon flights

Luton to Cork flights

Heathrow to Cork flights

Luton to Shannon flights

Southend to Cork flights

London City to Shannon flights

Southend to Shannon flights

Stansted to Knock flights

Luton to Knock flights

Heathrow to Knock flights

Gatwick to Knock flights

Stansted to Milltown (Kerry) flights

Luton to Milltown (Kerry) flights

Heathrow to Milltown (Kerry) flights

Gatwick to Milltown (Kerry) flights

London City to Knock flights

London City to Milltown (Kerry) flights

London City to Donegal flights

Southend to Knock flights

Gatwick to Donegal flights

Stansted to Donegal flights

Luton to Donegal flights

Southend to Donegal flights

Southend to Milltown (Kerry) flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Heathrow to Donegal via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Donegal from Heathrow.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Donegal flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from Heathrow to Donegal on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London Heathrow Airport to Donegal from £168

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Donegal

Cheapest flights from Heathrow to DonegalExplore the most affordable flight options available from Heathrow to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 October 2026.

Explore the most affordable flight options available from Heathrow to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 October 2026.

Best flights from Heathrow to DonegalDiscover carefully curated flight deals from Heathrow to Donegal that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Discover carefully curated flight deals from Heathrow to Donegal that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Last-minute flights from Heathrow to DonegalDiscover last-minute flight deals from Heathrow to Donegal. Data last updated 23 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Donegal. Data last updated 23 October 2026 and is based on user searches.

Find flight deals from Heathrow to Donegal

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Donegal that are best for you.

Best time to book a flight from Heathrow to Donegal

Have a flexible travel schedule? Discover the best time to fly to Donegal from Heathrow with our price prediction graph.

Related info for your journey

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

How long is the flight from London Heathrow Airport to Donegal?

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

How can I find direct flights from Heathrow to Donegal?

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

Travelling to a place near Donegal?

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.

Alternative routes for Heathrow to Donegal

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Donegal by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Ireland

Book a non-stop flight to one of these other cities located in Ireland.

Search flights from Heathrow to Donegal by cabin class

Find flights from Heathrow to Donegal, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Donegal flights

Browse other Heathrow and Donegal flight options. Last updated on 23 October 2026.

Other flights from Heathrow

Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 23 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Heathrow to Donegal
Explore the most affordable flight options available from Heathrow to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 October 2026.

Best flights from Heathrow to Donegal
Discover carefully curated flight deals from Heathrow to Donegal that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Last-minute flights from Heathrow to Donegal
Discover last-minute flight deals from Heathrow to Donegal. Data last updated 23 October 2026 and is based on user searches.