SI 2026/1059 - The Air Navigation (Restriction of Flying) (Windsor) Regulations 2026

S T A T U T O R Y I N S T R U M E N T S 2026 No. 1059 CIVIL AVIATION The Air Navigation (Restriction of Flying) (Windsor) Regulations 2026 Made - - - - 30th September 2026 Coming into force - - 20th October 2026 The Secretary of State has decided that it is necessary in the public interest to restrict flying in the area specified in regulation 3(1) by reason of the arrangements associated with a state visit to the United Kingdom.

The Secretary of State makes the following Regulations in exercise of the powers conferred by article 239 of the Air Navigation Order 2016(a).

Citation and commencement

1. These Regulations may be cited as the Air Navigation (Restriction of Flying) (Windsor) Regulations 2026 and they come into force on 20th October 2026.

Interpretation

2. In regulation 3(1) the times referred to are Co-ordinated Universal Time(b).

Restricted airspace

3.—(1) Subject to paragraph (4), during the period beginning with 0600 hours and ending with 2300 hours on 20th October 2026 no aircraft is to fly below 2,500 feet above mean sea level within the area bounded by—

(a) straight lines joining successively the following points—

(i) 513611N 0004133W, and

(ii) 513611N 0003338W,

(b) the anti-clockwise arc of a circle having a radius of 2 nautical miles centred at 513518N 0003047W between 513611N 0003338W and 513320N 0003017W,

(c) straight lines joining successively the following points—

(i) 513320N 0003017W,

(ii) 513156N 0003111W,

(iii) 513007N 0003013W,

(a) S.I. 2016/765, amended by S.I. 2024/990; there are other amending instruments but none is relevant.

(b) Co-ordinated Universal Time (UTC) is one hour behind British Summer Time (BST).(iv) 512124N 0003001W, and

(v) 512211N 0003107W,

(d) the anti-clockwise arc of a circle having a radius of 2 nautical miles centred at 512053N 0003331W between 512211N 0003107W and 512208N 0003602W,

(e) straight lines joining successively the following points—

(i) 512208N 0003602W,

(ii) 512017N 0003822W, and

(iii) 512103N 0004236W,

(f) the clockwise arc of a circle having a radius of 12 nautical miles centred at 512812N 0002713W between 512103N 0004236W and 512802N 0004624W,

(g) the anti-clockwise arc of a circle having a radius of 2 nautical miles centred at 513002N 0004629W between 512802N 0004624W and 513156N 0004527W, and

(h) the clockwise arc of a circle having a radius of 12 nautical miles centred at 512812N 0002713W between 513156N 0004527W and 513611N 0004133W.

(2) All non-standard flight and enhanced non-standard flight clearances(a) contained within the area specified in paragraph (1) are withdrawn for the duration of these Regulations.

(3) Helicopter Routes H10 and H3(b) contained within the area specified in paragraph (1) are not available for the duration of these Regulations.

(4) Paragraph (1) does not apply to any aircraft—

(a) insofar as flying is already prohibited by the Air Navigation (Restriction of Flying) (Windsor Castle) (Restricted Area EG R156) Regulations 2021(c) and the Air Navigation (Restriction of Flying) (Windsor Great Park) (Restricted Area EG R161) Regulations 2025(d),

(b) making an approach to or departure from—

(i) London City Airport whilst under the direction of either London Terminal Control Centre, Swanwick or the air traffic control unit at London City Airport,

(ii) London Heathrow Airport whilst under the direction of either London Terminal Control Centre, Swanwick or the air traffic control unit at London Heathrow Airport, or

(iii) Royal Air Force Northolt whilst under the direction of either the London Terminal Control Centre, Swanwick or the air traffic control unit at Royal Air Force Northolt, or

(c) being operated by or on behalf of—

(i) a Police Air Support Unit,

(ii) an Emergency Medical Service,

(iii) the Maritime and Coastguard Agency,

(iv) the King’s Helicopter Flight, or

(v) a member of the Royal Family, or

(d) operating with a permission issued by the Thames Valley Police Service.

(a) A non-standard flight is a flight that does not follow published routes or notified procedures.

(b) Helicopter routes H10 and H3 are illustrated within Aeronautical Information Publication EGLL AD 2.24: Helicopter routes in the London CTR and London/City CTR chart AD 2-EGLL-3-2.

(c) S.I. 2021/1137.

(d) S.I. 2025/1177.

2Signed by authority of the Secretary of State for Transport Karen L Michaels Grade 7 30th September 2026 Department for Transport EXPLANATORY NOTE (This note is not part of the Regulations) These Regulations impose restrictions on flying in the vicinity of Windsor on the occasion of a state visit to the United Kingdom which is due to take place there on 20th October 2026.

As part of the overall security arrangements for the visit, the Civil Aviation Authority and the Department for Transport agree that it is in the public interest that flying should be restricted in the relevant areas for reasons of public safety and security.

These Regulations apply except insofar as flying is already prohibited by the Air Navigation (Restriction of Flying) (Windsor) (Restricted Area EG 156) Regulations 2021 (S.I. 2021/1137) and the Air Navigation (Restriction of Flying) (Windsor Great Park) (Restricted Area EG R161) Regulations 2025 (S.I. 2025/1177).

The times referred to in regulation 3(1) are Co-ordinated Universal Time (UTC) which is one hour behind British Summer Time (BST).

In relation to the permission referred to in regulation 3(4)(d), the Thames Valley Police Service may be contacted as notified.

Full details of these Regulations will be promulgated by Briefing Sheet and Notice to Aviation

(NOTAM).

The point of contact in the Civil Aviation Authority is Mr David Ridley, Airspace Regulator, Safety and Airspace Regulation Group, on telephone number 03301 382471.

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