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Cheap flights from Belfast to Slough

Compare Belfast to Slough flight deals

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Flight deals from Belfast to Slough

Looking for a cheap last-minute deal or the best round-trip flight from Belfast to Slough? Find the lowest prices on one-way and round-trip tickets right here.
London.$144 per passenger.Departing Mon, Jan 11, returning Fri, Jan 22.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Mon, Jan 11, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Fri, Jan 22, arriving in Belfast City.Price includes taxes and charges.From $144, select.
London.$144 per passenger.Departing Mon, Nov 9, returning Fri, Nov 20.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Mon, Nov 9, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Fri, Nov 20, arriving in Belfast City.Price includes taxes and charges.From $144, select.
London.$144 per passenger.Departing Mon, Sep 14, returning Fri, Sep 25.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Mon, Sep 14, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Fri, Sep 25, arriving in Belfast City.Price includes taxes and charges.From $144, select.
London.$144 per passenger.Departing Mon, Feb 8, returning Fri, Feb 19.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Mon, Feb 8, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Fri, Feb 19, arriving in Belfast City.Price includes taxes and charges.From $144, select.
London.$146 per passenger.Departing Sun, Sep 6, returning Tue, Dec 8.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Sun, Sep 6, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Tue, Dec 8, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Wed, Dec 30, returning Fri, Jan 1.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Wed, Dec 30, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Fri, Jan 1, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Sat, Oct 24, returning Sun, Nov 1.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Sat, Oct 24, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Sun, Nov 1, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Fri, Sep 18, returning Thu, Oct 1.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Fri, Sep 18, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Thu, Oct 1, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Fri, Apr 23, returning Sat, Apr 24.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Fri, Apr 23, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Sat, Apr 24, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Fri, Nov 27, returning Mon, Dec 7.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Fri, Nov 27, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Mon, Dec 7, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Thu, Feb 25, returning Sat, Mar 13.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Thu, Feb 25, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Sat, Mar 13, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Sat, Oct 3, returning Sun, Oct 11.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Sat, Oct 3, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Sun, Oct 11, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Fri, Dec 4, returning Sun, Dec 20.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Fri, Dec 4, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Sun, Dec 20, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Fri, Sep 4, returning Sun, Nov 1.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Fri, Sep 4, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Sun, Nov 1, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Fri, Jan 29, returning Fri, Feb 12.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Fri, Jan 29, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Fri, Feb 12, arriving in Belfast City.Price includes taxes and charges.From $146, select.
London.$146 per passenger.Departing Sun, Mar 21, returning Fri, Apr 9.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from Belfast City on Sun, Mar 21, arriving in London Heathrow.Inbound direct flight with British Airways departing from London Heathrow on Fri, Apr 9, arriving in Belfast City.Price includes taxes and charges.From $146, select.
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Belfast to Slough: Flight information

The things to know before you go.
Fly intoLondon Heathrow Airport
Distance to Slough10.8 km
Cheapest flight$144
Cheapest month to flySeptember
Most popular airlineAer Lingus
Average flight time1 hr, 24 mins

Find the cheapest month to fly from Belfast to Slough

We always keep 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 September. We’ve based this on flights into London Heathrow Airport.
Jul
from $152
Aug
from $150
Sep
from $144
Oct
from $146
Nov
from $144
Dec
from $146
Jan
from $144
Feb
from $144
Mar
from $146
Apr
from $146
May
from $152
Jun
from $244

Finding cheap flights from Belfast to Slough: Frequently asked questions

There are three (3) airports near Slough: London Heathrow Airport, London Luton Airport, and London City Airport.
The best price we found for a round-trip flight from Belfast to Slough is $144. 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.
Aer Lingus, British Airways, and Qatar Airways 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, September 14, 2026. Overall, the cheapest month to fly from Belfast to Slough is usually September.
If you're flying from Belfast, the cheapest airport near Slough is London Heathrow – which is 10.8 km away from the center of Slough. We've found flights to this airport from $144.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Slough on Monday, September 14, 2026.
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 43.7km from Slough, and London City Airport is 44.7km 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.