Trip at a glance
- Time difference+9 hvaries with DST
- Body-clock shift9 hours earlieradvance (harder)
- Days to adjust~9 (7 with head start)adults; kids similar
- Flight time~11h 10mtypical travel time estimate
Get your exact plan for Seattle → Paris
What does a family jet lag plan for Seattle → Paris 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 Seattle time; after arrival, Paris time.
| Day | Adults bed | Age 8 bed | Age 3 bed | Light |
|---|---|---|---|---|
| Day −2 at home | 9:30 PM | 7:00 PM | 7:15 PM | Bright light on waking |
| Day −1 at home | 8:30 PM | 6:30 PM | 7:00 PM | Bright light on waking |
| Travel | Sleep on the plane 3:15 AM–6:30 AM Paris time | |||
| Day 1 arrive | 12:00 AM | 8:30 PM | 8:30 PM | Get light 2:40 PM–5:00 PM |
| Day 2 | 12:00 AM | 8:30 PM | 8:30 PM | Get light 10:00 AM–4:00 PM; Avoid 8:00 AM–10:00 AM |
| Day 3 | 12:00 AM | 8:30 PM | 8:30 PM | Get light 9:00 AM–3:00 PM; Avoid 8:00 AM–9:00 AM |
| Day 4 | 12:00 AM | 8:30 PM | 8:30 PM | Get light 8:00 AM–2:00 PM |
| Day 5 | 11:30 PM | 8:30 PM | 8:30 PM | Get light 7:30 AM–1:00 PM |
| Day 6 | 11:15 PM | 8:30 PM | 8:30 PM | Get light 7:15 AM–12:00 PM |
| Day 7 | 10:45 PM | 8:15 PM | 8:30 PM | Get light 6:45 AM–11:00 AM |
| Day 8 | 10:30 PM | 7:45 PM | 8:00 PM | Normal daylight |
How do you beat jet lag from Seattle to Paris, step by step?
- Pre-shift at home: For 2 days before you fly, move bedtimes and wake times earlier each day (adults 60 min, kids 4–8 30 min, babies/toddlers 15 min), with bright light right after waking.
- Switch to destination time on board: Set devices to Paris time and eat on its meal schedule.
- Sleep on the plane: Sleep about 3:15 AM–6:30 AM destination time.
- Time your light: Day 2: get bright light 10:00 AM–4:00 PM and avoid bright light 8:00 AM–10:00 AM. The windows move earlier each day; follow the daily plan.
- Bedtime on local time: Adults around 12:00 AM on night 1, reaching 10:30 PM by day 8. Wake at a fixed time even after a bad night.
- Short, early naps: Adults/older kids ≤ 20–30 min; little ones keep naps but on local time, ending by ~4 PM.
- Melatonin (optional): Adults 0.5–3 mg ~30 min before local bedtime for 4 nights; kids only with pediatrician OK; never babies/toddlers.
- Meals, caffeine, movement: Eat on local time, hydrate, skip alcohol, adults caffeine mornings only, outdoor activity in the light windows.
What's different about Seattle → Paris?
- East is the tougher direction: the first nights, kids may lie awake at bedtime and be hard to wake. Keep wake-up times firm.
- Watch the clock-change weeks: Mar 14–Mar 27 and Oct 31–Nov 6 the gap is 8 hours, because the two countries switch daylight saving time on different dates.
- At roughly 11h 10m of travel, this is a long-haul day. Pack two "sleep kits" (pajama layer, eye mask, lovey) and plan meals on Paris time.
- On a typical 5:30 PM departure, the flight overlaps night in Paris. Aim for sleep from about 3:15 AM to 6:30 AM local time, then land ready for a full day.
- In Paris, summer evenings stay bright until about 8:30–9 PM. Close curtains before kids' bedtime and keep late-evening outings shaded if you are flying east.
What should each age do?
- Babies & toddlers (0–3): keep naps on Paris clock time and end the last nap by about 4 PM. No melatonin.
- Kids 4–8: one nap of up to 45 minutes before 2 PM on arrival day only if needed, then outdoor play in the light windows.
- Tweens & teens: naps of 20–30 minutes max, devices off an hour before bed, and morning light matters because teens resist moving earlier.
- Adults: 0.5–3 mg melatonin about 30 minutes before local bedtime for a few nights is optional; caffeine in the morning only.
Guides by age
- Jet lag with a baby: naps, feeds and daylight
- Jet lag with a toddler: early wakes and nap caps
- Jet lag with kids 4–8: outdoor play and bedtime routines
- Jet lag with teens: morning light and phones
- Flying east with kids
What about the trip home?
Coming home to Seattle is a 9 hours westward shift (usually easier): plan about 6 days to readjust. How to handle jet lag on the way home.
Frequently asked questions
How many hours ahead is Paris from Seattle?
Paris is 9 hours ahead of Seattle most of the year. Watch the clock-change weeks: Mar 14–Mar 27 and Oct 31–Nov 6 the gap is 8 hours, because the two countries switch daylight saving time on different dates.
How long does jet lag last flying from Seattle to Paris with kids?
About 9 days without preparation. Shifting bedtimes earlier for 2 days before you fly (15–30 minutes a day for kids, 1 hour for adults) cuts it to about 7. Kids usually follow a similar timeline when they get outdoor daylight at the right times.
Should kids sleep on the flight from Seattle to Paris?
Yes, on a typical overnight departure. Sleep roughly 3:15 AM–6:30 AM Paris time, which is night at your destination. Start a mini bedtime routine when the window opens.
What time should kids go to bed the first night in Paris?
For kids who normally sleep at 7:30 PM: about 8:30 PM for an 8-year-old and 8:30 PM for a 3-year-old on night 1, moving to their usual time over the next 7 days. Adults around 12:00 AM.
Is jet lag worse coming home to Seattle?
The trip home is a 9 hours westward (delay) shift, usually the easier direction. Plan about 6 days to readjust, and run the calculator again for the return flight.
Related routes
- Seattle → London
- Seattle → Tokyo
- Seattle → Honolulu
- New York → Paris
- Los Angeles → Paris
- Denver → Paris
- Chicago → Paris
Open the calculator with this route
Sources
- CDC Yellow Book 2026: Jet Lag Disorder. US Centers for Disease Control and Prevention guidance for travelers and clinicians.
- Eastman CI, Burgess HJ. How to travel the world without jet lag. Sleep Med Clin, 2009. The light-timing and pre-flight shifting method this calculator follows.
- Burgess HJ et al. Preflight adjustment to eastward travel: 3 days of advancing sleep with and without morning bright light. J Biol Rhythms, 2003. Shifting sleep 1 hour a day before an eastward flight.
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.