Registered local bus service

PF0000508/586

X4

Service
X4
From
Luton Airport
To
Aylesbury
Via
Central Railway Station, Sir Henry Floyd School
Effective
31 May 2026
Status
Registered

Registration history

9 records

Publisher-supplied variations, newest variation number first. Differing rows with the same variation number are preserved; no missing historical changes are reconstructed.

#8 · Registered

Effective
31 May 2026
Received
16 April 2026

X4 · Luton AirportAylesbury

via Central Railway Station, Sir Henry Floyd School

Vary timetable.

Operating between Luton Airport and Aylesbury given service number X4 effective from 31 May 2026. To amend Stopping Places.

#7 · Registered

Effective
22 February 2026
Received
9 January 2026

X4 · AylesburyLeighton Buzzard

via Central Railway Station, Sir Henry Floyd School

Vary route.

Operating between Aylesbury and Leighton Buzzard given service number X4 effective from 22 February 2026. To amend Route.

#6 · Registered

Effective
31 August 2025
Received
18 July 2025

X4 · Aylesbury Bus Station / Sir Henry Floyd School, Aylesbury, Bucks.Leighton Buzzard Railway Station, Beds.

via Central Railway Station, Sir Henry Floyd School

Vary timetable. V6

Operating between Aylesbury and Leighton Buzzard given service number X4 effective from 31 August 2025. To amend Timetable.

#5 · Registered

Effective
1 June 2025
Received
17 April 2025

X4 · Aylesbury Bus Station, Bucks.The Point, Milton Keynes, Bucks

via Central Railway Station, Sir Henry Floyd School

Route, stopping places, and timetable variation. Parts of Bletchley, and central Milton Keynes removed, route changes at Leighton Buzzard and central Aylesbury (V5 06/2025).

Operating between Aylesbury Bus Station, Bucks. and The Point, Milton Keynes, Bucks given service number X4 effective from 01 June 2025. To amend Route, Stopping Places and Timetable.

#4 · Registered

Effective
5 January 2025
Received
21 November 2024

X4 · AylesburyCentral Railway Station, Milton Keynes

via Central Railway Station, Sir Henry Floyd School

Route, stopping places, and timetable variation (V4 11/2024).

Operating between Aylesbury and Central Railway Station, Milton Keynes given service number X4 effective from 05 January 2025. To amend Route, Stopping Places and Timetable.

#3 · Registered

Effective
3 November 2024
Received
20 September 2024

X4 · AylesburyMilton Keynes

via Central Railway Station, Sir Henry Floyd School

Route, stopping places, and timetable variation (V3 10/2024).

Operating between Aylesbury and Milton Keynes given service number X4 effective from 03 November 2024. To amend Route, Stopping Places and Timetable.

#2 · Withdrawn

Effective
1 September 2024
Received
31 August 2024

X4 · Aylesbury Bus StationMilton Keynes Central Rail Station

via Sir Henry Floyd School

Route, stopping places, and timetable variation (V2 09/2024). Monday to Saturday excluding public holidays.

#1 · Registered

Effective
1 September 2024
Received
18 July 2024

X4 · AylesburyMilton Keynes

via Central Railway Station, Sir Henry Floyd School

Route, stopping places, and timetable variation (V1 08/2024). Monday to Saturday excluding public holidays

Operating between Aylesbury and Milton Keynes given service number X4 effective from 01 September 2024. To amend Route, Stopping Places and Timetable.

#0 · Registered

Effective
7 January 2024
Received
23 November 2023

X4 · AylesburyMilton Keynes

via Central Railway Station, Sir Henry Floyd School

Monday to Saturday excluding public holidays

From: Aylesbury To: Milton Keynes Via: Central Railway Station, Sir Henry Floyd School Name or No.: X4 / X40 Service type: Normal Stopping Effective date: 07 January 2024 Other details: Monday to Saturday excluding public holidays

Official Traffic Commissioner public data. Snapshot updated 8 Sept 2026. Traffic Commissioners / DVSA · CC BY ↗