“There's been a change in your itinerary” - Why are the flights now longer?

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Last month I booked a flight on American Airlines for the end of December. Today I got an email from them stating that there had been a change in my trip, and here are the updated details of my flights.



For both flights (IAD->LAX and LAX->SYD), the only change I can see is that the departure and arrival times have changed slightly (<30 minutes). The aircraft did not change either, but both flights are now longer! The first flight gained 49 minutes and the second flight gained 10 minutes.



10 minutes on a 15 hour flight is negligible, but adding almost an hour to what was a 5.5 hour flight seems like quite a lot! Why would an airline change their flight time so drastically, when seemingly nothing but the departure time has changed?










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  • This would probably have been better on our Aviation site
    – DJClayworth
    1 hour ago










  • Can you provide the exact date and the schedules before/after? If it's on a very busy day (say, the week-end before or after Christmas), they could have added some buffer to take congestion into account. It may not make the actual flight longer, just make sure you arrive "on time" even if you leave late. They should have taken that into account earlier, but you never know... It could also be they received notification of an event that could disrupt things at specific times (say, the President using the same airport as you). Hard to guess.
    – jcaron
    1 hour ago
















up vote
5
down vote

favorite












Last month I booked a flight on American Airlines for the end of December. Today I got an email from them stating that there had been a change in my trip, and here are the updated details of my flights.



For both flights (IAD->LAX and LAX->SYD), the only change I can see is that the departure and arrival times have changed slightly (<30 minutes). The aircraft did not change either, but both flights are now longer! The first flight gained 49 minutes and the second flight gained 10 minutes.



10 minutes on a 15 hour flight is negligible, but adding almost an hour to what was a 5.5 hour flight seems like quite a lot! Why would an airline change their flight time so drastically, when seemingly nothing but the departure time has changed?










share|improve this question























  • This would probably have been better on our Aviation site
    – DJClayworth
    1 hour ago










  • Can you provide the exact date and the schedules before/after? If it's on a very busy day (say, the week-end before or after Christmas), they could have added some buffer to take congestion into account. It may not make the actual flight longer, just make sure you arrive "on time" even if you leave late. They should have taken that into account earlier, but you never know... It could also be they received notification of an event that could disrupt things at specific times (say, the President using the same airport as you). Hard to guess.
    – jcaron
    1 hour ago












up vote
5
down vote

favorite









up vote
5
down vote

favorite











Last month I booked a flight on American Airlines for the end of December. Today I got an email from them stating that there had been a change in my trip, and here are the updated details of my flights.



For both flights (IAD->LAX and LAX->SYD), the only change I can see is that the departure and arrival times have changed slightly (<30 minutes). The aircraft did not change either, but both flights are now longer! The first flight gained 49 minutes and the second flight gained 10 minutes.



10 minutes on a 15 hour flight is negligible, but adding almost an hour to what was a 5.5 hour flight seems like quite a lot! Why would an airline change their flight time so drastically, when seemingly nothing but the departure time has changed?










share|improve this question















Last month I booked a flight on American Airlines for the end of December. Today I got an email from them stating that there had been a change in my trip, and here are the updated details of my flights.



For both flights (IAD->LAX and LAX->SYD), the only change I can see is that the departure and arrival times have changed slightly (<30 minutes). The aircraft did not change either, but both flights are now longer! The first flight gained 49 minutes and the second flight gained 10 minutes.



10 minutes on a 15 hour flight is negligible, but adding almost an hour to what was a 5.5 hour flight seems like quite a lot! Why would an airline change their flight time so drastically, when seemingly nothing but the departure time has changed?







air-travel itineraries






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edited 1 hour ago









DJClayworth

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30.4k577113










asked 2 hours ago









David K

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  • This would probably have been better on our Aviation site
    – DJClayworth
    1 hour ago










  • Can you provide the exact date and the schedules before/after? If it's on a very busy day (say, the week-end before or after Christmas), they could have added some buffer to take congestion into account. It may not make the actual flight longer, just make sure you arrive "on time" even if you leave late. They should have taken that into account earlier, but you never know... It could also be they received notification of an event that could disrupt things at specific times (say, the President using the same airport as you). Hard to guess.
    – jcaron
    1 hour ago
















  • This would probably have been better on our Aviation site
    – DJClayworth
    1 hour ago










  • Can you provide the exact date and the schedules before/after? If it's on a very busy day (say, the week-end before or after Christmas), they could have added some buffer to take congestion into account. It may not make the actual flight longer, just make sure you arrive "on time" even if you leave late. They should have taken that into account earlier, but you never know... It could also be they received notification of an event that could disrupt things at specific times (say, the President using the same airport as you). Hard to guess.
    – jcaron
    1 hour ago















This would probably have been better on our Aviation site
– DJClayworth
1 hour ago




This would probably have been better on our Aviation site
– DJClayworth
1 hour ago












Can you provide the exact date and the schedules before/after? If it's on a very busy day (say, the week-end before or after Christmas), they could have added some buffer to take congestion into account. It may not make the actual flight longer, just make sure you arrive "on time" even if you leave late. They should have taken that into account earlier, but you never know... It could also be they received notification of an event that could disrupt things at specific times (say, the President using the same airport as you). Hard to guess.
– jcaron
1 hour ago




Can you provide the exact date and the schedules before/after? If it's on a very busy day (say, the week-end before or after Christmas), they could have added some buffer to take congestion into account. It may not make the actual flight longer, just make sure you arrive "on time" even if you leave late. They should have taken that into account earlier, but you never know... It could also be they received notification of an event that could disrupt things at specific times (say, the President using the same airport as you). Hard to guess.
– jcaron
1 hour ago










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The two most likely causes are a change in routing or a change in take off and landing slots.



Routes can change for various reasons, some may be longer or shorter. They usually don't make that much of a difference to a short flight (although it can happen if one route had a better jetstream, those are usually variable)



Most likely is a rearrangement of logistics meaning take off or landing slots have changed meaning the aircraft needs to take less or more time to get to its slot. These may be changed due for seasonal reasons, or because an airport rearranges to accommodate new bids for the most desirable time slots etc.






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    1 Answer
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    active

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    1 Answer
    1






    active

    oldest

    votes









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    oldest

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    active

    oldest

    votes








    up vote
    6
    down vote













    The two most likely causes are a change in routing or a change in take off and landing slots.



    Routes can change for various reasons, some may be longer or shorter. They usually don't make that much of a difference to a short flight (although it can happen if one route had a better jetstream, those are usually variable)



    Most likely is a rearrangement of logistics meaning take off or landing slots have changed meaning the aircraft needs to take less or more time to get to its slot. These may be changed due for seasonal reasons, or because an airport rearranges to accommodate new bids for the most desirable time slots etc.






    share|improve this answer


























      up vote
      6
      down vote













      The two most likely causes are a change in routing or a change in take off and landing slots.



      Routes can change for various reasons, some may be longer or shorter. They usually don't make that much of a difference to a short flight (although it can happen if one route had a better jetstream, those are usually variable)



      Most likely is a rearrangement of logistics meaning take off or landing slots have changed meaning the aircraft needs to take less or more time to get to its slot. These may be changed due for seasonal reasons, or because an airport rearranges to accommodate new bids for the most desirable time slots etc.






      share|improve this answer
























        up vote
        6
        down vote










        up vote
        6
        down vote









        The two most likely causes are a change in routing or a change in take off and landing slots.



        Routes can change for various reasons, some may be longer or shorter. They usually don't make that much of a difference to a short flight (although it can happen if one route had a better jetstream, those are usually variable)



        Most likely is a rearrangement of logistics meaning take off or landing slots have changed meaning the aircraft needs to take less or more time to get to its slot. These may be changed due for seasonal reasons, or because an airport rearranges to accommodate new bids for the most desirable time slots etc.






        share|improve this answer














        The two most likely causes are a change in routing or a change in take off and landing slots.



        Routes can change for various reasons, some may be longer or shorter. They usually don't make that much of a difference to a short flight (although it can happen if one route had a better jetstream, those are usually variable)



        Most likely is a rearrangement of logistics meaning take off or landing slots have changed meaning the aircraft needs to take less or more time to get to its slot. These may be changed due for seasonal reasons, or because an airport rearranges to accommodate new bids for the most desirable time slots etc.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited 1 hour ago

























        answered 2 hours ago









        Rory Alsop

        11k14075




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