Why are flights from India to North America usually late night?

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Accepted answer

Similar to what Tom mentions, I concur that one answer doesn't fit all. But there are many factors (unfortunately at this point I don't have much sources for them) which can be considered,

  • As you mentioned, European and US airports do not operate at night time hours, but I don't see this as a problem. For instance, DEL to FRA is covered by two direct flights, i.e. Lufthansa 761 and Air India 121. Lufthansa leaves late at night whereas Air India leaves in the afternoon. So this problem seems like it can be easily avoided by morning flights which can land on airports in Europe in the afternoon.

  • Hegemony could be a factor and to be quite honest, I see some evidence of it as well. Almost all flights from NRT (Tokyo, Japan) to most airports in the US are at perfectly good morning timings.

  • BUT, here's a reason which compels me the most. India has busy airports with heavy domestic traffic. In comparison to airports in US and Europe (which either have more runways or have multiple airports in one city) we have relatively lesser number of runways. If you were to visit the airport in the morning in Delhi, you would see clear evidence of this. So to prevent overcrowding of the runways in Delhi, most international flights tend to leave at night. As I showed you an example earlier, there are some (albeit a much lesser number) in the day as well.

Upvote:2

One factor that hasn't been mentioned is noise abatement procedures which are put in place to avoid noise pollution.

For example, heathrow, gatwick and stansted all limit flights as they are located in urban areas; so if your flight is connecting through these airports, it may also dictate timings.

Boeing provides a comprehensive database that lists restrictions enforced at airports but its a bit more technical.

Upvote:6

Flights are planned based on a variety of reasons, with one of the biggest reason being connecting with "banks" at the departing and arriving airports. Banks are time periods when a large percentage of flights land and depart at a hub airport. By timing your flights to arrive for the morning bank in the USA means easier connections for their passengers continuing on.

Other factors include landing costs which can vary at different times of day, weather patterns during the night vs day, traffic loads along the way, available gates at the airports.

No simple one answer fits all for this question.

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