WestJet Emergency London Flight: WS2 Mid-Air Alert Details

A WestJet Boeing 787-9 Dreamliner cruising at 39,000 feet over Northern Ireland on December 22, 2025, suddenly squawked 7700—the universal code for a general emergency—triggering a cascade of priority handling that would ultimately end with a safe landing at London Heathrow. Passengers never left their seats for a diversion; the crisis stayed aloft until touchdown. Here’s what the flight data shows.

Flight Number: WS2 / WJA2 · Origin: Calgary · Destination: London Heathrow · Emergency Code: 7700 · Altitude: 39,000 feet

Key operational details for WestJet flight WS2’s December 22, 2025 emergency, compiled from aviation trackers and flight data sources.

What happened to WestJet 2276?

Incident overview

WestJet flight WS2 (IATA code WJA2) departed Calgary International Airport on December 21, 2025 at 21:23 MST, beginning the roughly nine-hour transatlantic crossing to London Heathrow in a Boeing 787-9 Dreamliner registered C-GUDO (AirLive). The aircraft climbed to FL390—39,000 feet—before the emergency unfolded.

Around 11:37 UK time on December 22, while cruising over Northern Ireland near Belfast and Ballymena, the Dreamliner’s transponder code switched to 7700, the internationally recognized general emergency signal (The Aviation Hub). The squawk immediately alerted air traffic control across multiple FIRs (Flight Information Regions), prompting priority handling from controllers in Belfast and surrounding sectors.

Flight path and response

At 11:41 UK time, the aircraft continued toward Heathrow at FL390, still under emergency protocols (The Aviation Hub). AirLive reports the flight received a direct approach clearance to LHR, bypassing standard holding patterns (AirLive). The direct routing shaved miles from the descent path—every minute mattered once the medical emergency was declared.

By 11:48 UK time, the transponder code shifted from 7700 to 7647, a code indicating the emergency had been resolved or downgraded (The Aviation Hub). The crew had stabilized the situation in flight. Descent began near Chester around 11:56 UK time, and the Dreamliner touched down at Heathrow between 12:27 and 12:34 GMT (Travel and Tour World; AirLive). Emergency medical services met the aircraft on the tarmac.

The flight landed on runway 09R at Heathrow Terminal 4 without requiring a diversion to an alternate airport (AirLive). Every passenger remained on board throughout the emergency—a resolution that avoided the significant cost, delay, and logistical disruption of an unplanned landing.

Why did the easyJet flight have an emergency landing?

Onboard incident

While WestJet WS2’s medical emergency was resolved in flight, other transatlantic flights have not ended as smoothly. An easyJet flight to Edinburgh reportedly encountered an onboard medical situation that prompted a forced diversion (The Aviation Hub). Unlike WS2—which carried the emergency code only temporarily before downgrading to 7647—easyJet flights facing similar situations have sometimes required immediate landing at the nearest suitable airport.

Diversion details

The frequency of emergency landings varies by airline and route type. Short-haul European flights typically divert to nearby regional airports within 20–30 minutes of declaring an emergency, while long-haul transatlantic services like WS2 face a different calculus: the nearest suitable airport might be hundreds of miles away, making it faster to manage the crisis aloft and continue to destination.

Aviation data from Squawk7700.com shows WestJet maintains an active record of squawk events across its fleet, with most emergencies resolved without diversion (Squawk7700.com). The WS2 incident fits within this pattern.

The pattern: Long-haul carriers like WestJet have a strong incentive to keep crises aloft when possible—diversions on transatlantic routes cost $50,000–$200,000 per incident in fuel, landing fees, passenger rebooking, and overnight accommodation.

How much money do WestJet flight attendants make?

Compensation breakdown

WestJet flight attendants—including those who handle in-flight emergencies on flights like WS2—earn salaries that have attracted scrutiny as the carrier has expanded its ultra-low-cost model. According to industry compensation data, WestJet cabin crew positions typically start at CAD $26–$32 per hour during flight hours, with a typical 80–100 flight hours per month generating annual earnings of approximately CAD $40,000–$55,000 for new hires.

Senior flight attendants with five or more years of service can reach CAD $65,000–$80,000 annually, while lead pursers and trainers earn additional premiums. These figures place WestJet cabin crew compensation below comparable roles at Air Canada, though slightly above some U.S. carriers operating under similar low-cost models.

Cabin crew pay

The WS2 incident highlights the on-the-job responsibilities that underlie these salaries. Flight attendants are trained in medical emergency response, including CPR, AED use, and first aid for conditions ranging from cardiac events to diabetic emergencies—the likely scenario on this December 22 flight. The decision to manage the crisis in flight rather than divert reflects both crew competence and the practical reality that diversion would have affected 300+ passengers while adding significant workload to the cabin team.

Why this matters: Cabin crew on long-haul international routes like Calgary–London handle more complex medical situations per flight hour than short-haul domestic crews. WestJet’s compensation structure—while competitive within its tier—faces ongoing pressure as the airline expands premium long-haul services where medical emergencies are statistically more likely.

How common is an aborted landing?

Frequency factors

An aborted landing—where a plane initiates the landing sequence but pulls back up—occurs more frequently than most passengers realize. Industry data suggests approximately 1 in 1,000 scheduled arrivals at major airports involves a go-around, with major hubs like London Heathrow seeing higher rates due to dense traffic and complex sequencing.

The 7700 squawk on WS2 was unrelated to a landing attempt; the emergency occurred at cruise altitude over Northern Ireland. However, the protocol shares a common purpose: alerting controllers and ground teams to prepare for abnormal operations. While WS2 did not abort a landing, it did require emergency services to pre-position on the tarmac—essentially the ground-level equivalent of the air traffic priority handling the aircraft received.

Procedure reasons

Go-arounds occur for several reasons: wind shear on final approach, runway incursions, aircraft equipment issues, or ATC instructions to maintain separation. The decision always rests with the captain, and modern aviation philosophy encourages conservative go-around decisions—the cost of a botched landing far exceeds the inconvenience of a missed approach.

The catch: Passengers rarely see the behind-the-scenes coordination that prevents aborted landings from becoming accidents. On December 22, the WS2 crew’s decision to continue to Heathrow rather than divert required real-time assessment of whether the medical situation could be stabilized—ultimately, it could, and the flight completed its journey.

Which airline has never had a crash?

Global rankings

No airline has a perfect safety record over decades of operations—accidents happen across all carriers, and safety records shift as fleets age and new operators enter the market. However, several carriers have distinguished themselves through exceptional long-term records. Qatar Airways, Emirates, and Qantas consistently rank among airlines with the lowest accident rates per million departures, according to industry safety databases maintained by aviation regulators and industry groups.

WestJet’s record sits solidly in the middle tier of North American carriers. The airline has never suffered a fatal accident in its 30-year history, though it has experienced mechanical incidents, emergency landings, and the type of medical diversion situations described above. The December 22 WS2 emergency adds to WestJet’s non-fatal emergency record but does not alter its overall safety standing.

WestJet safety record

WestJet has operated without a fatal accident since founding in 1996—a record that places it among the safer North American carriers by historical measure. The WS2 incident on December 22, 2025, involved no aircraft malfunction and was resolved without injury, maintaining the airline’s clean safety ledger.

The implication: WestJet passengers on long-haul routes should understand that the airline’s safety culture prioritizes prevention over reaction—the WS2 emergency was managed in flight, not through diversion, reflecting crew training and protocol execution that met the moment without incident.

The aircraft’s transponder code was changed to 7700, signaling to air traffic control that the plane was dealing with a serious issue.

— Travel and Tour World (Aviation News Outlet)

Pilots squawked 7700 due to a medical situation onboard, requiring ground assistance.

— AirLive (Aviation News)

The Dreamliner C-GUDO involved in the incident is approximately 6.8 years old, having been delivered to WestJet in March 2019, according to The Aviation Hub. Aviation trackers on X reported the medical emergency as “medical-related” around 11:45 UK time, with the resolution signaled nine minutes later (The Aviation Hub citing @Shauns_Aviation).