Arrival Time Calculator
Worked Examples
Five common overnight and long-haul departures, run through the calculator above. Pick any route to load it, date and time included.
| Route | Departs (local) | Arrives (local) | Day | Est. Duration |
|---|---|---|---|---|
| Chicago ORD to London LHR | 9:30 PM | 11:03 AMTue, Nov 17 | +1 day | 7h 34m |
| New York JFK to Singapore SIN | 11:00 PM | 5:34 AMWed, Nov 18 | +2 days | 17h 35m |
| Los Angeles LAX to Sydney SYD | 10:00 PM | 6:55 AMWed, Nov 18 | +2 days | 13h 56m |
| Sydney SYD to Singapore SIN | 7:00 AM | 11:30 AMMon, Nov 16 | Same day | 7h 30m |
| London LHR to New York JFK | 10:00 AM | 11:40 AMMon, Nov 16 | Same day | 6h 40m |
How this is calculated
The flight duration is the same great-circle estimate used by the flight time calculator: the shortest possible path between the two airports' coordinates, a typical cruise speed, and a flat allowance for taxi, takeoff, climb, and descent. It is not a schedule, real flights follow published airways and get rerouted around weather and traffic, so treat the arrival time as a solid ballpark, not a boarding-pass guarantee.
The local arrival time comes from converting your departure time to a single moment in UTC, adding the estimated duration, then reading that moment back on the destination's clock, using each airport's IANA time zone. Because you gave a specific calendar date, this correctly picks up whichever daylight saving rule applies on that date at both ends. The one edge case: if the departure falls inside the hour a clock actually springs forward or falls back, the local offset can be ambiguous by up to an hour. That's rare, and worth knowing rather than worrying about.
If the time change leaves you wide awake at 3am, our jet lag calculator can build a recovery plan for the same route.
Assumes a cruise speed of 485 knots (~900 km/h, typical for a long-haul jet) and a fixed 30-minute allowance for taxi, climb, and descent. Distance uses each airport's published coordinates.
Questions People Ask
What Date Do I Arrive?
The date under the arrival time is the local date at your destination. The calculator takes your departure date and local time, adds the estimated flight time, then reads that moment off the destination airport's clock, so the date you see is the one on the calendar where you land.
Why Does My Arrival Say +1 Day?
It means you land on a later calendar date than the one you left on, each counted in local time. Overnight flights do this, and so do eastbound flights that cross several time zones, since the clock where you land is already hours ahead. Flying west across the International Date Line can do the opposite and show -1 day, when the local date where you land is earlier than the one you left on.
Does It Handle Daylight Saving Time?
Yes. Each airport carries its IANA time zone, and because you enter a specific departure date, the calculator applies whichever daylight saving rule is in effect on that date at both ends. The one edge case is a departure inside the hour when a clock springs forward or falls back, where the local offset can be off by up to an hour.
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