Flight Time Calculator

Find out exactly what time you land — in local time at your destination. Handles time zone crossings and date changes automatically.

🛫 Departure

⏱ Flight Duration

🛬 Destination

Local Arrival Time

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Arrival Date—
Flight Duration—
Time Zone Shift—
Departure (UTC)—
Arrival (UTC)—

📐 How Arrival Time is Calculated

1. Convert departure local time → UTC (subtract departure timezone offset).
2. Add flight duration to get arrival UTC.
3. Convert arrival UTC → destination local time (add destination timezone offset).
Daylight saving offsets are applied automatically by date.

Common Flight Times from Major US Cities

Here are approximate flight durations for popular routes, useful for planning your arrival time. Enter these into the calculator above with your actual departure time and timezone for a precise local arrival time.

  • New York (JFK) → London (LHR): ~7h westbound
  • Los Angeles (LAX) → Tokyo (NRT): ~12h westbound
  • Chicago (ORD) → Paris (CDG): ~9h eastbound
  • Miami (MIA) → Cancun (CUN): ~2h
  • New York (JFK) → Los Angeles (LAX): ~5h 30m westbound
  • Los Angeles (LAX) → New York (JFK): ~5h eastbound
  • Dallas (DFW) → Honolulu (HNL): ~8h
  • San Francisco (SFO) → London (LHR): ~10h

Why Does Flying East Feel Harder than West?

Flying east shortens your day — you "lose" hours. Flying New York to London, you depart at 9 PM and arrive at 9 AM London time, but your body has only had 7 hours of night instead of a full sleep cycle. Flying west lengthens your day, which is easier for the body to adapt to because humans naturally run on a slightly-longer-than-24-hour internal clock.

How to Calculate Jet Lag Recovery Time

A common rule of thumb is one day of recovery per time zone crossed. Crossing 5 time zones (e.g. New York to London) typically requires 3–5 days for full adjustment. Eastward travel usually takes 1–2 days longer to recover from than equivalent westward travel.

Frequently Asked Questions

Approximately 7 hours westbound (NY→London). Eastbound (London→NY) is about 8 hours due to jet stream direction. Departing JFK at 9:00 PM ET, you arrive Heathrow around 9:00 AM BST the following morning.

No — that's not physically possible. However, flying westward across the International Date Line (e.g. from Japan to Los Angeles) can make it appear as though you arrive on the calendar day before you departed, because you're moving backward through time zones faster than the clock advances.

Jet streams — fast-moving air currents at cruising altitude — flow predominantly west to east. Flying east (against the jet stream) adds headwind resistance, increasing flight time. Flying west (with the jet stream tailwind) reduces time. The difference on transatlantic routes can be 45–90 minutes.

A red-eye is an overnight flight that departs late at night and arrives early in the morning. The name comes from the bloodshot eyes passengers often have after a short, uncomfortable sleep on the plane. Common red-eyes include LAX→JFK (10:30 PM → 6:30 AM) and cross-Atlantic routes.