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Cheap Flights from Barcelona to Slough

Compare Barcelona 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

Barcelona Airport to Slough flight deals

Looking for a cheap last-minute deal or the best return flight from Barcelona Airport to Slough? Find our lowest prices on one-way and return tickets to the easiest airport right here.
London.R 567 per passenger.Departing Wed, 13 May.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Wed, 13 May, arriving in London Heathrow.Price includes taxes and charges.From R 567, select.
London.R 594 per passenger.Departing Wed, 22 Apr.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Wed, 22 Apr, arriving in London Heathrow.Price includes taxes and charges.From R 594, select.
London.R 644 per passenger.Departing Tue, 24 Mar.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Tue, 24 Mar, arriving in London Heathrow.Price includes taxes and charges.From R 644, select.
London.R 694 per passenger.Departing Thu, 23 Jul.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Thu, 23 Jul, arriving in London Heathrow.Price includes taxes and charges.From R 694, select.
London.R 738 per passenger.Departing Tue, 1 Dec.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Tue, 1 Dec, arriving in London Heathrow.Price includes taxes and charges.From R 738, select.
London.R 757 per passenger.Departing Wed, 21 Oct.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Wed, 21 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 757, select.
London.R 757 per passenger.Departing Tue, 10 Nov.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Tue, 10 Nov, arriving in London Heathrow.Price includes taxes and charges.From R 757, select.
London.R 758 per passenger.Departing Thu, 17 Sep.One-way flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departs from Barcelona on Thu, 17 Sep, arriving in London Heathrow.Price includes taxes and charges.From R 758, select.
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Barcelona to Slough: Flight information

The things to know before you go.
Fly intoLondon Heathrow Airport
Cheapest flight foundR 567
Cheapest month to flyMay
Average flight time2 hrs, 24 mins
Most popular airlineBritish Airways
Average flights per week375

Find the cheapest month to fly from Barcelona to Slough

We always keep an eye on fares, so you can find the best flight deal in seconds. It looks like Barcelona to Slough flights are currently cheapest in March. We’ve based this on flights into London Heathrow Airport.
Feb
from R 1,038
Mar
from R 644
Apr
from R 594
May
from R 567
Jun
from R 776
Jul
from R 694
Aug
from R 1,212
Sep
from R 758
Oct
from R 757
Nov
from R 757
Dec
from R 738
Jan
from R 788

Check out these Slough hotels

Ready to plan your stay? Other travellers rate these Slough hotels for cleanliness, service and location.
Residence Inn by Marriott Slough
0.08 km from city centre
R 3 013
Per night
The Bell and Bottle
7.10 km from city centre
R 1 192
Per night
Colnbrook Lodge Guest House
6.75 km from city centre
R 1 235
Per night
Residence Inn by Marriott Slough
0.08 km from city centre
R 3 013
Per night
The Bell and Bottle
7.10 km from city centre
R 1 192
Per night
Colnbrook Lodge Guest House
6.75 km from city centre
R 1 235
Per night
Explore top-rated hotels

Finding cheap flights from Barcelona 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 Barcelona to Slough is R 1,382. 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, Iberia, Vueling Airlines all offer direct flights to London Heathrow Airport.
We've checked every Barcelona Airport to Slough fare we could find, and the cheapest upcoming date to fly seems to be on Wednesday, 11 March 2026. Overall, the cheapest month to fly from Barcelona Airport to Slough is usually March.
If you're flying from Barcelona Airport, 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 R 1,382.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Barcelona Airport to Slough on Wednesday, 11 March 2026.
No airlines currently offer direct flights between Barcelona Airport 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.
Currently, the cheapest airline that flies to London Heathrow Airport - the closest airport to Slough - Vueling Airlines.