Jet lag from London to New York with kids

New York is 5 hours behind London most of the year. That is a westward shift (body clocks must move later). Expect about 4 days for the family to adjust, or 2 if you start shifting bedtimes 2 days before you fly.

Last reviewed · Based on published research

Trip at a glance

Get your exact plan for London → New York

What does a family jet lag plan for London → New York look like?

Sample built by the calculator for 2 adults and kids aged 3 and 8, departing Jul 1 with a 2-day head start. Home bedtimes: adults 10:30 PM, kids 7:30 PM, everyone up at 6:30 AM. Times before the trip are London time; after arrival, New York time.

DayAdults bedAge 8 bedAge 3 bedLight
Day −2
at home
11:30 PM8:00 PM7:45 PMBright evening light
Day −1
at home
12:30 AM8:30 PM8:00 PMBright evening light
TravelStay awake on the plane (daytime in New York); short naps only
Day 1
arrive
9:30 PM6:30 PM6:30 PMGet light 7:00 PM–9:30 PM
Day 210:00 PM6:45 PM6:30 PMGet light 8:30 PM–10:00 PM; Avoid 6:00 AM–6:30 AM
Day 310:30 PM7:15 PM7:00 PMNormal daylight

How do you beat jet lag from London to New York, step by step?

  1. Pre-shift at home: For 2 days before you fly, move bedtimes and wake times later each day (adults 60 min, kids 4–8 30 min, babies/toddlers 15 min), with bright light in the evening.
  2. Switch to destination time on board: Set devices to New York time and eat on its meal schedule.
  3. Stay awake on the plane: It is daytime at your destination; limit naps to 20–30 min.
  4. Time your light: Day 2: get bright light 8:30 PM–10:00 PM and avoid bright light 6:00 AM–6:30 AM. The windows move later each day; follow the daily plan.
  5. Bedtime on local time: Adults around 9:30 PM on night 1, reaching 10:30 PM by day 3. Wake at a fixed time even after a bad night.
  6. Short, early naps: Adults/older kids ≤ 20–30 min; little ones keep naps but on local time, ending by ~4 PM.
  7. Melatonin (optional): Usually not needed westward; adults 0.5 mg only for early-morning waking.
  8. Meals, caffeine, movement: Eat on local time, hydrate, skip alcohol, adults caffeine mornings only, outdoor activity in the light windows.

What's different about London → New York?

What should each age do?

Guides by age

What about the trip home?

Coming home to London is a 5 hours eastward shift (usually harder): plan about 5 days to readjust. How to handle jet lag on the way home.

Frequently asked questions

How many hours ahead is New York from London?

New York is 5 hours behind London most of the year. Watch the clock-change weeks: Mar 14–Mar 27 and Oct 31–Nov 6 the gap is 4 hours, because the two countries switch daylight saving time on different dates.

How long does jet lag last flying from London to New York with kids?

About 4 days without preparation. Shifting bedtimes later for 2 days before you fly (15–30 minutes a day for kids, 1 hour for adults) cuts it to about 2. Kids usually follow a similar timeline when they get outdoor daylight at the right times.

Should kids sleep on the flight from London to New York?

Mostly no. Typical flights run during New York daytime, so keep kids awake and busy, with only short naps (toddlers can keep their usual nap on destination time).

What time should kids go to bed the first night in New York?

For kids who normally sleep at 7:30 PM: about 6:30 PM for an 8-year-old and 6:30 PM for a 3-year-old on night 1, moving to their usual time over the next 2 days. Adults around 9:30 PM.

Is jet lag worse coming home to London?

The trip home is a 5 hours eastward (advance) shift, usually the harder direction. Plan about 5 days to readjust, and run the calculator again for the return flight.

Related routes

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Sources

How we turn this research into plans: methodology.

Not medical advice. General sleep and travel guidance based on published circadian research. Ask your doctor or pediatrician about melatonin or other supplements, pregnancy, medications or health conditions. Never give melatonin to babies or toddlers.