M4 Junction 4A: Concorde Roundabout (A4, A408)
Junction 4A is where the Heathrow spur from Junction 4 reaches the airport, around the Concorde Roundabout, with Harlington and Harlington Corner close by. Heathrow Terminals 2 and 3 are under a mile south. It is mostly airport traffic: drivers dropping off, picking up and heading for the car parks.
Almost everyone here is going to or from the airport: dropping off, picking up, or starting a shift at Terminals 2 or 3. This page shows what has been happening on the spur.
Check this junction now: live M4 speed flow map · latest M4 traffic news · M4 serious incidents · M4 accidents
M4 Junction 4A Now: Accidents, Incidents and Roadworks
Live Traffic Speeds at M4 Junction 4A
The speed strip below shows the M4 around this junction, both directions, from National Highways’ live data, checked every five minutes.
All the latest M4 traffic news →Live M4 traffic speed flow map →
- Junction M4 J4A, Concorde Roundabout
- Roads at this junction A4, A408
- Nearest town Ashford, 3.4 miles south
- Junction before J4, Heathrow, about 0.9 miles in a straight line
- Junction after J4B, Thorney, about 1.9 miles in a straight line
Around M4 Junction 4A: Concorde Roundabout: Towns and Places on the Map
| Place | What it is | From the junction |
|---|---|---|
| Heathrow Terminals 2 & 3 | Railway station | Under a mile south |
| London Heathrow Airport | Airport | About 1 mile south |
| The Courtyard Of Windows | Attraction | About 1.5 miles south |
| Hayes and Harlington | Railway station | About 2 miles north-east |
| West Drayton | Railway station | About 2 miles north-west |
| Burlington House | Historic house or castle | About 2 miles south |
| Uxbridge F.C. | Venue | About 2 miles north |
| Bedfont Lakes Country Park. | Park or nature reserve | About 2.5 miles south |
