AvReg: Aviation regex match toolkit

avregex.md

AvReg: The Aviation RegEx Match Toolkit

General Tips

• The PCRE flavour of RegEx is used here.
• Append the i modifier to the end of the regex to make any pattern case-insensitive.

Airline Codes

Purpose	Description	RegEx	Example
IATA code	Commercial service mark	/^[A-Z0-9]{2}$/	CX
ICAO code	Operational service mark	/^[A-Z]{3}$/	CPA
Ticketing prefix	eTicket operator code	/^[0-9]{3}$/	160

Airport Codes

Purpose	Description	RegEx	Example
IATA code	Commercial service mark	/^[A-Z]{3}$/	LHR
ICAO code	Operational service mark	/^[A-Z]{4}$/	EGLL
FAA code	US FAA-specific locator	/^[A-Z0-9]{3}$/	L67

Air Navigation & Communication

Note: Privately-owned Canadian NDBs may utilize a letter and number combination.

Purpose	Description	RegEx	Example
NDB	Non-directional beacon identifier	/^[A-Z]{1-3}$/	TD
VOR	VHF omnidirectional range ident	/^[A-Z]{3}$/	APU
INT	Airway intersection waypoint	/^[A-Z]{5}$/	PRAWN
Squawk Code	Unique transponder octal code	/^[0-7]{4}$/	0318
Distress	If match, aircraft is in distress	/^7[567]00$/	7700

Ticketing & Business Operations

Note that for PNR record identifiers, some GDS providers and operators use 5-character PNR idents, but most use 6-character ones. Additionally, for readibility purposes, some airlines and systems will skip 0, 1, I, L, and O.

Purpose	Description	RegEx	Example
PNR identifier	Passenger record locator	/^[A-Z0-9]{5,6}$/	J5XTP2
E-ticket number	Ticketing and itinerary identifier	/^[0-9]{3}(-)?[0-9]{10}$/	160-4837291830

Flight Operations

Purpose	Description	RegEx	Example
Flight number	IATA (marketing) flight number	/^[A-Z0-9]{3,}$/	BA026
Callsign	ICAO (operational) flight number	/^[A-Z]{3}[A-Z0-9]{1,}$/	BAW319K

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