🚨 Emergency? Call 999 · Motorway breakdown? 0300 123 5000
Search
LIVE
Loading incidents...

Start typing to search

Find traffic updates, service providers, tools & more

📢 Seen an incident on this road? Report it in 30 seconds Report ›
A421

A421 Traffic News

A421 Trunk Road · Milton Keynes (M1 J13) → Bedford (A6)
🔍
🟢 A-road Clear 🚨 0 incidents 🚧 0 roadworks · 3 soon ⏱ Updated 3min
25 miles long
Regions: South East, East of England
Home › Traffic › Roads › A421

🚨 Live A421 Incidents & Roadworks

Auto-refresh 3 min
🟢 Clear on the A421 📍 0 incidents · 🚧 0 roadworks
Share A421 status: 💬 📘 X
Roadworks
The A421 eastbound between junctions with the A4280 and A1. Other Roadworks. All lanes will be closed. The hard shoulder, lanes one and two will be closed. From 20:00 on 19 October 2026 to 06:00 on 20 October 2026. Pending
near Bedford
→ Eastbound 3 lanes closed (Hard shoulder, Lane 1, Lane 2) Clears ~The event is expected to clear between 05:00 and 05:00 on 20 October 2026
Reported 15:35
Roadworks
The A421 westbound between junctions with the A1 and A4280. Other Roadworks. All lanes will be closed. Lanes one and two will be closed. From 21:00 on 20 November 2026 to 05:00 on 23 November 2026. Pending
near St Neots
← Westbound 2 lanes closed (Lane 1, Lane 2) Clears ~The event is expected to clear between 05:00 and 05:00 on 23 November 2026
Reported 08:55
📢
Spotted something on the A421?
Report a crash, hazard or closure — warn other drivers in real time
→

⏰ A421 Traffic by Time of Day

A421 is typically busiest 07:00–09:00 and 17:00–19:00 on weekdays.

00
04
08
12
16
20

⚠️ Most Dangerous A421 Junctions

Based on DfT STATS19 police collision records. The A421 has 407 recorded collisions at 6 collision hotspots, involving 592 casualties (7 fatal). Take extra care here.

#1
nr Milton Keynes
137 collisions · 188 casualties · 2 fatal · 25 serious
Severe Blackspot
#2
nr Marston Moretaine
118 collisions · 179 casualties · 2 fatal · 20 serious
Severe Blackspot
#3
nr Buckingham
37 collisions · 61 casualties · 2 fatal · 8 serious
Severe Blackspot
#4
nr Sandy
24 collisions · 42 casualties · 1 fatal · 5 serious
Severe Blackspot
#5
nr Bedford
82 collisions · 111 casualties · 15 serious
Severe Blackspot
#6
nr Brackley
9 collisions · 11 casualties · 5 serious
Blackspot
🔍 See the full A421 collision blackspot map →

🛒 Journey Essentials

Affiliate
Some links on this page are affiliate links. If you buy through them we may earn a small commission, at no extra cost to you. Learn more

❓ A421 Traffic — Frequently Asked Questions

Q: Is the A421 closed today?

Any A421 closure appears in the live feed above within minutes of National Highways reporting it, including tonight's overnight roadworks closures.

Q: Is there traffic on the A421 today?

The live feed above shows every incident, delay, roadwork and overnight closure on the A421, updated every 5 minutes from National Highways.

Q: What is the worst time to use the A421?

The A421 is typically busiest during morning rush hour (07:00–09:00) and evening rush hour (17:00–19:00) on weekdays.

Q: Are there roadworks on the A421 right now?

Roadworks and overnight closures on the A421 are listed above and at /traffic/a421/roadworks/, taken from the National Highways daily closure report.

Q: What roads connect to the A421?

The A421 connects to: M1, A6, A428.

📊 A421 Status Summary

0
Active incidents
0
Severe/serious
0
Roadworks
—
Last updated
🆘 Broken down on the A421?
Verified UK breakdown providers · fast response
Get Help Now

ℹ️ A421 Road Details

Length
25 miles
From
Milton Keynes (M1 J13)
To
Bedford (A6)
Type
A-road
AM Rush
07:00–09:00
PM Rush
17:00–19:00

📍 Key A421 Locations

Milton Keynes Bedford

🔗 Roads Connecting to the A421

M1 M1 trafficM1 Motorway Live → A6 A6 trafficA6 Trunk Road Live → A428 A428 trafficA428 Trunk Road Live →

🛣️ A421 Services & Motorway Stops

⏳ Loading services...

🔗 Related Tools

🛣️My Commute — save your route NEW 🚧A421 Roadworks View → 🕵️Was I Affected? Check → 🔄Route Checker Plan → 📋Incident Archive Browse → 🗺️Live Map View →

📱 Follow A421 Updates

Daily A421 incidents, posted across all four channels.

🎵 TikTok 30,000+ › ▶️ YouTube 2,000+ › 📸 Instagram 1,500+ › 📢Report an incident›

Junction

DfT STATS19 police collision records

0
Collisions
0
Fatal
0
Serious
0
Slight
🔍 Full blackspot map →
Beat the jam

Know before you go on A421

Set it up once. We'll tell you what's happening while you can still turn off.

🛣️ Save your commuteWe watch your route for you NEW 🔔 Early-warning alertsA heads-up before you set off ✈️ Telegram alertsFree · one tap to join 📱 Daily on TikTok30,000+ drivers