# Swiss International Air Lines emergency diversions

> Live situation record from CLSTR: https://clstr.news/situations/swiss-international-air-lines-emergency-diversions
> Updated: 2026-09-03T18:09:58.000Z. Sources: 11. Developments: 2.

Swiss International Air Lines has experienced two separate emergency diversions involving flights over the Atlantic Ocean.

On August 25, a Boeing 777-300ER flying from Chicago to Zurich activated a ‘Squawk 7700’ emergency code. The aircraft diverted to Lajes Field in the Azores, landing successfully. While the airline did not officially confirm the cause, reports suggested a possible chemical odor on board.

On September 3, another Swiss International Air Lines flight traveling from Zurich to New York declared a 7700 emergency over the North Atlantic. This flight performed an unscheduled landing in St. John's, Newfoundland. The specific cause for this second diversion remains unclear.

## Timeline

### 2026-09-03: Swiss flight makes emergency landing in Newfoundland

A Swiss flight from Zurich to New York made an emergency landing in St. John's, Newfoundland, after declaring a 7700 emergency code over the North Atlantic.

3 sources. https://clstr.news/cluster/swiss-flight-makes-emergency-landing-in-newfoundland

### 2026-08-25: Swiss Boeing 777 diverts to Azores after emergency signal

A Swiss Boeing 777 flying from Chicago to Zurich diverted to the Azores after issuing a Squawk 7700 emergency code over the Atlantic. The cause of the diversion remains unconfirmed.

9 sources. https://clstr.news/cluster/swiss-boeing-777-diverts-to-azores-after-emergency-signal

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Cite as: Swiss International Air Lines emergency diversions. CLSTR, https://clstr.news/situations/swiss-international-air-lines-emergency-diversions