I found this sentence at
www.ecenglish.com - an English learning site.
"I have never flown on a plane."
Is this ambiguous?
Not really ambiguous, but what else would you fly on? A balloon?
There are two issues here. One is the verb
fly. Humans cannot fly (as birds do) so when you hear someone say "I'm flying to Chicago next week" you understand that they mean they are going to travel to Chicago by airplane. Therefore "I've never flown on a plane" is a little bit redundant. It sounds more natural to say "I've never flown" or "I've never been on an airplane."
The second issue is whether to say you're going
in or
on a plane. I'm sure there is a thread for this somewhere, but English is funny about which word to use for vehicles. If it is a small vehicle, such as a car, you say "I'm riding
in the car," but for a large vehicle, such as a bus, you say "I'm riding
on the bus." So if you were traveling in a very small airplane, you might say "I'll be getting
in the plane at noon," but if you're traveling by commercial aircraft, you'd say "I'll be getting
on the plane at noon."