A special service request: a four-letter code in a flight booking that asks the airline for something (a wheelchair, a special meal, a seat for a cello) or gives it data it needs, such as passport details (DOCS). The airline answers each request with a status: HK or KK confirmed, NN or HN still waiting, UN or NO refused.

Are SSR codes the same in Amadeus, Galileo and Sabre?

The codes are: the airline industry sets them, so WCHR means the same wherever it is entered. How you enter them differs: SR in Amadeus, SI. in Galileo. The table shows our guides' entries for Amadeus and Galileo.

What is the difference between WCHR, WCHS and WCHC?

How far the passenger can walk. WCHR: can climb the aircraft steps and walk to the seat, but needs a wheelchair for long distances. WCHS: cannot climb steps, but can walk to the seat. WCHC: cannot walk at all and is carried to the seat in an aisle chair. A passenger who brings their own wheelchair gets a second code for it: WCMP (manual), WCBD, WCBW or WCLB (battery-powered).

Is a confirmed SSR a guarantee?

HK means the airline accepted the request. Paid services (bags, seats, pets, an extra seat) are only certain once they are paid, usually on an EMD, and meals have deadlines, often 24 to 48 hours before departure. Each airline sets its own rules: check them before you promise anything to the client.

Where do these codes come from?

From our own Amadeus and Galileo guides, and, for the codes they do not cover, from the public sources listed under the table, with the date they were checked. The meanings are in our own words.

SSR codes for flights: wheelchair, meals, UMNR and more

An SSR (special service request) is a four-letter code in a flight booking that asks the airline for a service, such as a wheelchair, a special meal or a seat for a cello, or gives it data it needs, such as passport details. The code is the same in every booking system; the entry that adds it is not.

Find a code

74 codes

Code	What it asks for	Free text	Amadeus	Galileo
WCHR	Wheelchair to and from the aircraft. The passenger can climb steps and walk to the seat. Wheelchairs and assistance	Optional	`SR WCHR/P2`	`SI.P2S3/WCHR`
WCHS	Wheelchair to and from the aircraft. The passenger cannot climb steps but can walk to the seat. Wheelchairs and assistance	Optional	In the guide	`SI.P2/WCHS`
WCHC	Wheelchair all the way to the seat. The passenger cannot walk and is carried on board in an aisle chair. Wheelchairs and assistance	Optional	In the guide	`SI.P2S3/WCHC`
WCOB	An on-board wheelchair is needed during the flight, for example to reach the toilet. Wheelchairs and assistance
WCMP	The passenger brings their own manual wheelchair. Wheelchairs and assistance
WCBD	The passenger brings their own wheelchair powered by a dry-cell (non-spillable) battery. Wheelchairs and assistance
WCBW	The passenger brings their own wheelchair powered by a wet-cell (spillable) battery. Some airlines do not carry these. Wheelchairs and assistance
WCLB	The passenger brings their own wheelchair or mobility aid powered by a lithium-ion battery. The airline has to approve the battery. Wheelchairs and assistance
BLND	Blind or partially sighted passenger. Wheelchairs and assistance	Optional		In the guide
DEAF	Deaf or hard of hearing passenger. Wheelchairs and assistance	Optional		In the guide
DPNA	Passenger with an intellectual or developmental disability who needs help. Wheelchairs and assistance	Required		In the guide
MAAS	Meet and assist: staff meet the passenger and help them through the airport. Wheelchairs and assistance	Required		In the guide
LANG	The passenger needs help in their own language. Wheelchairs and assistance	Required		In the guide
MEDA	Medical case: the airline must clear the passenger to fly, often with a medical form (MEDIF). Wheelchairs and assistance	Optional		In the guide
OXYG	The passenger needs oxygen on board, supplied by the airline. Wheelchairs and assistance
PPOC	The passenger brings their own portable oxygen concentrator. Wheelchairs and assistance
STCR	Stretcher: the passenger travels lying down, over several seats. Wheelchairs and assistance	None	`NM1SMITH/JOHN MR(IDSTCR)`	In the guide
UMNR	Unaccompanied minor: a child flying alone in the airline's care. Children and infants	Required	`SR UMNR - UM05`	`SI.P3/UMNR*UM AGE 9`
INFT	Infant on an adult's lap, with no seat of its own. Children and infants		`NM1LEAVEY/KIM(INF/MICHAEL/18MAY25)`	`SI.P5/INFT-P2`
INST	Infant with a seat of its own, with the date of birth. Travelport+ asks for it since 1 June 2026. Children and infants	Required		`SI.P6/INST*12MAR26`
CHLD	Child, with the date of birth. Children and infants	Optional		`SI.P4/CHLD*03MAY18`
BSCT	Bassinet (carrycot) for a baby, fixed in front of the seat. Airlines have only a few per flight. Children and infants
VGML	Vegan: no meat, fish, eggs, milk or honey. Meals	None	`SR VGML/P2`	`SI.P1/VGML`
VLML	Vegetarian with milk and eggs (lacto-ovo). Meals	None	In the guide	`SI.S2/VLML`
AVML	Vegetarian, Indian style (Hindu vegetarian). Meals	None	In the guide	In the guide
VJML	Jain vegetarian: no meat, fish, eggs or root vegetables. Meals	None		In the guide
VOML	Vegetarian, Chinese style (oriental vegetarian). Meals	None		In the guide
RVML	Raw vegetarian: raw fruit and vegetables only. Meals	None		In the guide
HNML	Hindu, not vegetarian: no beef or pork. Meals	None		In the guide
MOML	Muslim: no pork or alcohol. Meals	None	In the guide	In the guide
KSML	Kosher, prepared under supervision and served sealed. Meals	None	In the guide	In the guide
GFML	Gluten-free. Meals	None	In the guide	`SI.P1/GFML`
DBML	Diabetic. Meals	None	In the guide	In the guide
LSML	Low salt. Meals	None	In the guide	In the guide
LFML	Low fat. Meals	None	In the guide	In the guide
NLML	Low lactose. Meals	None	In the guide	In the guide
LCML	Low calorie. Meals	None		In the guide
BLML	Bland: soft, mild food. Meals	None		In the guide
FPML	Fruit platter. Meals	None	In the guide	In the guide
SFML	Seafood. Meals	None	In the guide	In the guide
CHML	Child meal. Meals	Optional	`SR CHML/P3`	In the guide
BBML	Baby food. Meals	None	`SR BBML/P4`	In the guide
NOML	No meal. Meals	None		In the guide
NBML	No beef. Not every airline serves it. Meals
SPML	Special meal, described in the text: an allergy, a diet no other code covers. Meals	Required	In the guide	`SI.P2/SPML*NO NUTS`
PETC	Pet in the cabin, in a bag or carrier under the seat. Animals	Required		`SI.P1/PETC*CAT IN SOFT BAG 6KG`
AVIH	Animal in the hold. Animals	Required		In the guide
SVAN	Service animal (such as a guide dog) in the cabin with the passenger. Animals
ESAN	Emotional support animal in the cabin. Many airlines now take these only as pets. Animals
EXST	An extra seat for the passenger's comfort or size. Extra seats	Required	`SR EXST-PERSONAL COMFORT/P1`	In the guide
CBBG	A seat bought for cabin baggage, such as a musical instrument. Extra seats	Required	`SR CBBG-CELLO/P1`	In the guide
BIKE	Bicycle as checked baggage. Baggage		`SR BIKENN2/P1`
SPEQ	Sports equipment as checked baggage; the text says what it is, its weight and size. Baggage	Required		`SI.P1S2.3/SPEQ*SKI BAG 15KG 180X30X20`
BULK	Bulky baggage. Baggage
FRAG	Fragile baggage. Baggage
XBAG	Excess baggage. Baggage
WEAP	Weapons, firearms or ammunition in checked baggage. Baggage
PDBG	Prepaid checked bags, paid on an EMD. Baggage		`SR PDBG LH NN2/P1/S2`
DOCS	Passport or ID details for the airline's passenger data checks (APIS, Secure Flight): document, number, nationality, date of birth, gender, expiry and names. Travel documents		`SR DOCS BA HK1-P-SVN-PA1234567-SVN-12MAR85-F-09SEP31-NOVAK-ANA-MARIJA/P1`	`SI.P1/SSRDOCSYYHK1/P/SI/PX1234567/SI/12JUL80/F/23OCT30/NOVAK/ANA`
DOCO	Another travel document: a visa, a redress number or a US known traveller number. Travel documents		`SR DOCO BA HK1-MARIBOR SVN-V-K0045821-LJUBLJANA SVN-02FEB26-USA/P1/S3`	`SI.P1/SSRDOCOYYHK1//K/9876543///US`
DOCA	An address: where the passenger stays at the destination (D) or lives (R). Travel documents		`SR DOCA BA HK1-D-USA-88 BAY STREET-SAN FRANCISCO-CA-94133/P1/S3`	`SI.P1/SSRDOCAYYHK1/D/US/100 MAIN STREET/NEW YORK/NY/10001`
FOID	The form of identification the passenger shows at check-in, for airlines that ask for one. Travel documents		`SR FOID BA HK1-DL12345678/P1`	`SI.P1/SSRFOIDYYHK1/PP987654321`
TWOV	Transit without a visa. Travel documents
CTCM	The passenger's mobile number, so the airline can reach them about a delay or cancellation. Contact details		In the guide	`SI.P1/SSRCTCMYYHK1/38641123456`
CTCE	The passenger's e-mail address, for the same reason. Contact details		In the guide	`SI.P1/SSRCTCEYYHK1/ANA.NOVAK//EXAMPLE.COM`
CTCR	The passenger chose not to give contact details. Contact details			`SI.P2/SSRCTCRYYHK1/PASSENGER DECLINED`
PCTC	Emergency contact: someone to call if something happens to the passenger. Contact details			`SI.SSRPCTCYYHK1/MARKO KOVAC/SI 386 41 765432-NOVAK/ANAMRS. HUSBAND`
FQTV	Frequent flyer number, so the miles go to the passenger's card. Other		`FFN LH-992001234567890/P1`	`SI.SSRFQTVLHHK1/LH992000123456789-NOVAK/ANAMRS`
OTHS	Other service: free text to the airline when no code fits. Other	Required	`SR OTHS-FREEFLOW TEXT/P2`
ASVC	A paid extra bought from the airline (a bag, a seat, a meal), paid on an EMD. Other		`SR ASVC-C/0CZ/P1/S2`
GRPF	Group fare details. Other			In the guide
CLID	Corporate client identifier, one per airline per booking. Other			In the guide
DEPA	Deportee, travelling with an escort. Other
DEPU	Deportee, travelling without an escort. Other

The entries are examples from our guides, with made-up names and numbers. Each airline sets its own rules, deadlines and fees for a service: check them before you promise it to the client.

WCHR, WCHS or WCHC?

The three wheelchair codes say how far the passenger can walk. A passenger who brings their own wheelchair gets a second code for it: WCMP (manual), WCBD (dry-cell battery), WCBW (wet-cell battery) or WCLB (lithium-ion battery).

Code	Climbs the steps	Walks to the seat	What the airport does
WCHR	Yes	Yes	Wheelchair for the long walk to and from the aircraft.
WCHS	No	Yes	Wheelchair to the aircraft, then a lift or an ambulift instead of the steps.
WCHC	No	No	Carried to the seat in an aisle chair.

The airline's answer

After the booking is saved, the airline answers each SSR with a status code. Only a confirmed request is booked. An OSI is different: it only tells the airline something and gets no answer, so a wheelchair written in an OSI is not booked.

HK · KK: Confirmed by the airline.
NN · HN: Requested, no answer yet.
UN · NO · UC: Refused: the airline will not provide it. Find another way or another flight.

Where the codes come from

Most codes and every entry come from our own Amadeus guide and Galileo guide. The codes they do not cover were checked on 14 October 2026 against these public sources; the meanings are in our own words.

A code missing or wrong? Tell us.

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