11:15 am to 1:45pm
11:15am to 12:15pm → 1 hour
12:15pm to 1:15 pm → 1 hour
1:15pm to 1:45pm → 30 mins
Total: 1h + 1h + 30 mins = 2h 30 mins
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Answer: The flight is 2 hours 30 mins
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