British Airways has launched an investigation after a flight to Dusseldorf landed in Edinburgh instead.
The airline said the error happened after a sub-contracted crew used an incorrect flight plan.
Passengers only realised the mistake after the plane landed in the Scottish capital, and were flown to their original destination after the plane was refuelled.
In a statement, British Airways said: "We are working with WDL Aviation, who operated this flight on behalf of British Airways, to establish why the incorrect flight plan was filed.
"We have apologised to customers for this interruption to their journey and will be contacting them all individually."
Search expands after Philippine ferry fire kills five and leaves dozens missing
US military says it struck vessel in Caribbean, killing 3
At least 14 killed in explosion at weapons depot in Syria
US hits five Iranian oil tankers after attack on Navy ships
UK gives air traffic provider a week to probe outage that halted flights
Serbia's President Vucic dissolves parliament, calls snap elections
With large crowds attending, Norway lays King Harald to rest
Jordan intercepts 18 Iranian ballistic missiles
