A Ryanair flight from Faro to Glasgow Prestwick Airport was delayed upon landing on Sunday after a deer was spotted in the airfield.
According to Travel Weekly, air traffic control noticed the animal at around 11am, and the Ryanair pilot was told to perform a "go-around".
A spokesman for the Ayrshire airport told the BBC that it was investigating how the deer came to be in the "vicinity of the airfield".
A passenger on the holiday jet, Sandra Bell, from Kilmarnock in Ayrshire, told the Scotsman: "We were almost down. We were coming over the last farm when we pulled back up again. I am not a good flyer and I found it quite shocking.
"Everybody was looking at one another, wondering what was going on."
The plane landed safely on its second approach, and the deer disappeared from sight.
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The passengers must have had a bit of time to admire the views out of the aircraft's windows. Discover the best plane window views below: