WestJet (WS) airline code, fares and API for travel agents
- IATA WS
- ICAO WJA
- Hybrid
Search WestJet (WS) fares
WestJet airline codes
- IATA code
- WS
- ICAO code
- WJA
- Main hub
- Calgary (YYC)
- Alliance
- Not in a global alliance
- Airline type
- Hybrid
- Country
- Canada
About WestJet
WestJet started as a western Canadian low-cost airline and has since moved toward a hybrid model. Calgary remains its home and main hub, with large operations in Vancouver, Toronto and Edmonton. It flies across Canada and to the United States, Mexico, the Caribbean and Central America, and its widebody aircraft link Calgary with Europe and Asia. Those long-haul jets have business, premium and economy cabins, while narrowbody flights sell premium and economy seating. WestJet is not in a global alliance, but it has codeshare and interline agreements with a number of international airlines, which helps with onward connections.
For Canadian itineraries, WestJet is often the main alternative to Air Canada, so it is useful to see both in one search. On IATA.co, WestJet fares appear in your search results whenever our flight suppliers offer them for your route and dates. You search live in the booking portal or through the flights API and pay from your prepaid balance. Fare bundles differ in what they include, and the rules are displayed before you confirm.
WestJet airline codes explained
WestJet uses the two-letter IATA airline code WS and the three-letter ICAO code WJA. The IATA code WS is the one shown on tickets, fare displays and booking screens, while the ICAO code WJA is used in air traffic control and flight planning.
WestJet is a hybrid carrier, based in Canada, operating mainly from Calgary (YYC). It is not part of a global airline alliance.
Booking WestJet fares as a travel agent
Travel agents book WestJet fares on IATA.co without their own IATA accreditation. Activate an agency account, top up a prepaid balance, then search live WS fares in the booking portal: the price, baggage and fare rules are shown with each offer before you confirm, and the amount is deducted from your balance. WestJet results appear whenever our flight suppliers return them for your route and dates, so what you can book follows live supplier content rather than a direct airline deal.
Search WestJet (WS) through the flights API
Developers and agencies can run the same WestJet search from their own site, app or back office through the IATA.co flights API. Filter a search by the carrier code WS and read the fares back as JSON, then book from the same prepaid balance. See the flights API and the API docs for the full reference.
GET /api/v1/flights/search?origin=YYC&destination=DXB&date=2026-12-14&carrier=WS
Host: iata.co
Authorization: Bearer YOUR_API_KEY
HTTP/1.1 200 OK
{
"carrier": "WS",
"flights": [
{ "airline": "WS", "from": "YYC", "to": "DXB", "price": 148.20 }
]
}Example request and response. Carrier codes filter the search; the full reference is unlocked with your API key.
WestJet at a glance
- Canadian hybrid carrier with its main hub in Calgary
- Not a member of a global alliance, but has codeshare partners
- Flies to the US, Mexico, the Caribbean, Europe and Asia
- Business, premium and economy cabins on widebody aircraft
WestJet (WS) questions
WestJet's two-letter IATA airline code is WS, and its three-letter ICAO code is WJA. The IATA code is the one you see on tickets, timetables and booking screens.
WestJet's ICAO code is WJA. ICAO codes are three letters and are used in air traffic control and flight planning, while the two-letter IATA code WS is used in ticketing and reservations.
Yes. On IATA.co you book WestJet fares through the platform from a prepaid balance, so you do not need your own IATA accreditation. WestJet fares appear in your results whenever our flight suppliers offer them for your route and dates.
It depends on what our flight suppliers return. Whenever WestJet content — including NDC fares — is offered by a connected supplier for your route and dates, it appears in your WS search results and can be booked from your balance or through the flights API.
WestJet is based in Calgary, Alberta, and its main hub is Calgary International Airport (YYC).
WestJet fares appear in your search results whenever our flight suppliers offer them for your route and dates. Bookings are paid from your prepaid balance.
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