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Cheap Flights from Belfast to Slough

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Compare Belfast to Slough flight deals

Find the cheapest month or even day of the year to fly to Slough

Book the best Slough fare with no extra fees

Flight deals from Belfast to Slough

Looking for a cheap last-minute deal or the best return flight from Belfast to Slough? Find the lowest prices on one-way and return tickets right here.
London.£47 per passenger.Departing Sat, 31 Jan.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Sat, 31 Jan, arriving in London Heathrow.Price includes taxes and charges.From £47, select.
London.£47 per passenger.Departing Tue, 4 Nov.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Tue, 4 Nov, arriving in London Heathrow.Price includes taxes and charges.From £47, select.
London.£47 per passenger.Departing Thu, 12 Mar.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Thu, 12 Mar, arriving in London Heathrow.Price includes taxes and charges.From £47, select.
London.£47 per passenger.Departing Tue, 2 Dec.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Tue, 2 Dec, arriving in London Heathrow.Price includes taxes and charges.From £47, select.
London.£47 per passenger.Departing Sun, 1 Feb.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Sun, 1 Feb, arriving in London Heathrow.Price includes taxes and charges.From £47, select.
London.£48 per passenger.Departing Wed, 22 Apr.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Wed, 22 Apr, arriving in London Heathrow.Price includes taxes and charges.From £48, select.
London.£49 per passenger.Departing Mon, 20 Oct.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Mon, 20 Oct, arriving in London Heathrow.Price includes taxes and charges.From £49, select.
London.£49 per passenger.Departing Tue, 30 Sep.One-way flight with British Airways.Outbound direct flight with British Airways departs from Belfast City on Tue, 30 Sep, arriving in London Heathrow.Price includes taxes and charges.From £49, select.

Belfast to Slough: Flight information

The things to know before you go.
Fly intoLondon Heathrow Airport
Distance to Slough10.8 km
Cheapest flight£47, Belfast Airport to London Heathrow Airport
Cheapest month to flyJanuary
Most popular airlineBritish Airways
Average flight time1 hr, 24 mins

Find the cheapest month to fly from Belfast to Slough

We’re always keeping an eye on fares, so you can find the best flight deal in seconds. It looks like Belfast to Slough flights are currently cheapest in November. We’ve based this on flights into London Heathrow Airport.
Jun
from £100
Jul
from £58
Aug
from £56
Sep
from £49
Oct
from £49
Nov
from £47
Dec
from £47
Jan
from £47
Feb
from £47
Mar
from £47
Apr
from £48
May
from £57

Finding cheap flights from Belfast to Slough: Frequently asked questions

There are 3 airports near Slough: London Heathrow Airport, London Luton Airport and London City Airport.
The best price we found for a return flight from Belfast to Slough is £74. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
British Airways, Qatar Airways, American Airlines all offer direct flights to London Heathrow Airport.
We've checked every Belfast to Slough fare we could find, and the cheapest upcoming date to fly seems to be on Monday, 3 November 2025. Overall, the cheapest month to fly from Belfast to Slough is usually November.
If you're flying from Belfast, the cheapest airport near Slough is London Heathrow – which is 10.8 km away from the centre of Slough. We've found flights into this airport from £74.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Slough on Monday, 3 November 2025.
No airlines currently offer direct flights between Belfast and Slough. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Slough but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Slough is around 40 days in advance, so don’t leave your flight to the last minute.
London Heathrow Airport is 10.8km from Slough, London Luton Airport is 43.6km from Slough, and London City Airport is 44.5km from Slough.
London Heathrow Airport is closest to Slough, at around 10.8 km away.
The cheapest airline that flies to Slough is British Airways .