Kids' Jet Lag: How to Help Babies to Teens Adjust

Jet lag with kids is a special kind of tired: a wide-awake toddler at 2 a.m., a 7-year-old asleep face-first in their dinner at 5 p.m., and you, somehow responsible for both. The good news is that body clocks are trainable, and kids have the same main reset button adults do. This guide covers what to do before, during, and after the flight, broken down by age.

A health note: This is practical planning advice, not medical advice. If your child has a sleep disorder, a chronic condition, or takes medication, talk to your pediatrician before a big time zone change.

How jet lag works (the 60-second version)

Your body has an internal clock that runs your sleep, hunger, and energy on roughly a 24-hour cycle. Cross several time zones fast and that clock is still set to home. Jet lag is the mismatch.

Three facts drive every tip below, all from the CDC’s jet lag guidance:

1. Light is the main reset button. Bright light at the right time of day shifts the clock.
2. West is easier than east. Most people’s internal clock runs a bit longer than 24 hours, so staying up later comes more naturally than going to bed earlier.
3. Adjustment takes days. The CDC says travelers adapt on average about 1 hour per day after flying east and about 1.5 hours per day after flying west. Kids vary, but that’s a useful planning baseline.

Use those numbers to plan the first days of your trip, not to panic. Pre-trip shifts and good daylight habits can speed things up.

Before the trip: shift the schedule

Both the CDC and the AAP’s HealthyChildren.org suggest shifting sleep times in the 2 to 3 days before you leave. The CDC suggests about 1 hour per day.

Flying east (earlier bedtime)

1. Three nights out: Bedtime and wake-up 30 to 60 minutes earlier. Dinner earlier too.
2. Two nights out: Another 30 to 60 minutes earlier.
3. Night before: Another step, if your kids are cooperating.
4. Mornings: Open the blinds and get outside early. Morning light helps pull the clock earlier.

Flying west (later bedtime)

1. Three nights out: Bedtime 30 to 60 minutes later. Keep the house bright in the early evening.
2. Two nights out: Another step later. Push dinner later with it.
3. Mornings: Let them sleep in a little, with blackout curtains if you have them.

When to skip it: For a one- or two-hour time difference, or a trip of only a couple of days, the pre-shift isn’t worth the fuss. And if your kids are in school, a full three-hour shift may not be realistic. Even half an hour helps.

On the plane: start living on destination time

1. Set everyone’s watches and devices to destination time when you board. Talk about meals and bedtime in local time.
2. Overnight flight to the east? Treat it like bedtime. Pajamas, teeth brushed, lovey, eye mask, lights down. Sleep on board is the single best jet lag buffer for a red-eye.
3. Daytime flight? Try to keep kids awake roughly when it’s daytime at the destination, with naps if they need them.
4. Hydrate. Water bottles filled after security. The CDC notes dehydration can make jet lag feel worse.
5. Skip caffeine for kids (sodas and iced tea included), especially later in the flight.

After you land: the first 72 hours

This is where most of the reset happens.

Day 1

1. Go outside in daylight. Walks, playgrounds, a park. HealthyChildren.org recommends active time outdoors or in brightly lit places during the day after arrival.
2. Eat on local time, even if no one is very hungry. Meals help anchor the clock.
3. Short nap only, if needed. For kids past the napping age, think 20 to 45 minutes, before mid-afternoon. Set an alarm.
4. Early but local bedtime. Aim close to normal bedtime in local time, maybe a little early.
5. Dark, cool bedroom. Blackout curtains, white noise app, and familiar bedding or a lovey from home.

Light timing by direction

The CDC notes the best light timing depends on direction and how many time zones you cross, and for very large shifts the ideal window can move. For most family trips, the table above is a good rule of thumb.

Nights 1 to 3: the 3 a.m. wake-up

Expect it. Here’s the playbook:

1. Keep lights low and voices quiet. This is still nighttime.
2. No screens. They’re bright, exciting, and make it worse.
3. A small, boring snack is fine if they’re truly hungry (bring crackers).
4. Quiet books in bed with a dim light if they won’t settle.
5. Wake everyone at a normal local morning time, even after a rough night, and get outside.

Jet lag by age

Kids of different ages need different plans. Use AAP sleep guidance as your target for total daily sleep.

Babies

Babies often adjust faster than anyone else, partly because their schedules are already flexible. Move each feed and nap toward the local clock over a day or two. Keep night feeds dark and boring, and get daytime outings in bright light. Follow safe sleep practices in unfamiliar cribs, and the CDC notes cribs abroad may not meet U.S. safety standards, so check what you’re given. A travel crib or play yard you bring can solve that.

Toddlers and preschoolers

This age leans hard on routine. Bring the bedtime book, the sound machine (or app), and the lovey, and run the exact same routine at local bedtime. Naps: keep them, but time them to the local afternoon and cap them so the child still sleeps at night. A toddler who naps for three hours at 4 p.m. will be ready to party at 11 p.m.

Big kids

School-age kids can handle a plan if you explain it. Tell them the “daylight is medicine” idea and let them help: they can pick the morning playground or the afternoon walk. Skip long naps. If they crash at 5 p.m., keep them busy with a bath, a walk, or a board game until close to bedtime. Our best family board games by age list has good low-energy, keep-them-awake options.

Tweens and teens

Teens are the most likely to sleep until noon and then lie awake at 2 a.m. scrolling. Set a local wake-up time, even on vacation, and get them out the door into daylight. Phones charge outside the bedroom at night. For eastward trips, a late-morning activity they actually want to do is the best alarm clock.

What about melatonin?

Melatonin gets mentioned constantly for jet lag. For kids, ask your pediatrician before you use it, full stop. HealthyChildren.org says melatonin should only be used after a discussion with your pediatrician, notes it isn’t FDA-approved for this use, and points out that products can contain varying amounts. Timing also matters: the CDC notes taking it at the wrong time can actually worsen the mismatch.

The same goes for antihistamines like diphenhydramine. Don’t give any medication to help a child sleep without your pediatrician’s guidance. If you travel with melatonin or any medicine, store it where kids can’t reach it.

Planning the trip around jet lag

1. Build a soft landing. Plan an easy first day or two. Skip timed tickets, big hikes, and early reservations right after an eastward flight.
2. Arrive early for anything important. The CDC suggests arriving a couple of days before important events, like a wedding.
3. Put outdoor activities first. A morning at a park or beach after an eastward flight does double duty.
4. Choose flights that fit sleep. For long eastward trips, overnight flights let kids sleep on board. For westward trips, daytime flights often land in the afternoon or evening, which makes local bedtime easier.
5. Plan the trip home too. Jet lag happens on return, and school starts Monday. Leave a buffer day if you can.

Heading to London with kids or Tokyo with kids? Both involve big time shifts from the U.S., so build the soft landing into your itinerary. And if you’re still prepping for the flight itself, read flying with toddlers.

Your next step: pick your direction and start three nights out

Look at your departure date and count back three nights. Write down the bedtime and wake-up time for each night, earlier for an eastward trip, later for a westward one, and stick it on the fridge. Then plan your first morning at the destination around getting everyone outside.