LA → Rome
LAX to Rome Jet Lag: How Long It Lasts and How to Beat It
Rome is nine hours ahead of Los Angeles and takes about seven days to clear untreated, which is longer than most Italy trips. You land around midday with your body reading 3am. Bright Italian sun at that hour moves your clock the wrong way. Sunglasses until early afternoon, daylight after, and an early bedtime on night one.
Try Flightmode — Save 50%Why this one costs people the most trip time
A ten-day Italy trip from LA sounds generous until you realize seven of those days overlap with untreated adjustment. People remember the food and the ruins but lose the first half of the trip to fog and early crashes.
Summer Rome adds heat on top of everything else. Dehydration from the long flight plus 90-degree afternoons produces headaches and fatigue that feel identical to jet lag. Drinking water on arrival day helps as much as light timing for how you actually feel.
How It Works
- Start the Rome shift from LA. Two days before you fly, you'll move bedtime earlier, from midnight toward 11 p.m., with bright light when you wake. Rome is nine hours ahead, and this closes part of the gap before you board.
- Use LA afternoon light. You'll seek bright light from 10 a.m. to 4 p.m. on pre-flight days. It nudges your internal clock east so Roman mornings feel less brutal.
- Make the evening flight your sleep. Departing at 5:05 p.m. and arriving at 7:35 a.m., you'll take Flightmode Sleep soon after takeoff and ride out the overnight. Eat before boarding so the meal service doesn't steal your sleep window.
- Walk Rome on local time. Get outside from 1 p.m. to 7 p.m. on arrival day and take Flightmode Sleep around 1 a.m. By day two you're waking and caffeinating on Roman time after a 9-hour shift.
- Flightmode Sleep and Wake hold the plan. Sleep backs each bedtime cue, and Wake covers the caffeine windows when LA time tries to pull you back.
Your LA → Rome jet lag plan
UA40 · 9-hour eastbound shift
Times shown in departure airport time.
Beat the LA → Rome shift
Your Jet Lag Plan, in a Gummy
A nine hour shift into a bright climate is the case where light timing is easiest to get wrong and most expensive to get wrong. The Travel Planner sets the crossover against your actual arrival.
- Sleep gummy + Wake gummy in every kit
- AI planner timed to LA → Rome
- Melatonin-free, no morning grogginess
- 30-day First Flight guarantee

What Europe-bound travelers say
"No jet lag flying solo. Flying over and flying back I had absolutely no jet lag. Everyone else on the plane was feeling the effects — I was perfectly fine."
"No more 3am wakeups. Usually I wake at odd hours for a week after a big time change. With Flightmode, I slept through the night faster."
"I was full of energy and started my trip immediately. Do not waste your first day in a new time zone dealing with jet lag."
Frequently asked questions
How long does jet lag last flying from LA to Rome?
About seven days untreated. Three to four with a pre-shift.
Should I take the nonstop or connect through the East Coast?
A long daylight layover on the East Coast helps marginally. The nonstop is better for everything else.
How do I handle late Italian dinners with jet lag?
Eat early for the first two nights and move to local timing from night three.
Does the heat make jet lag worse?
Dehydration produces symptoms almost identical to jet lag and the two compound. Drink more than you think you need on arrival day.
Is Rome worse than Paris from the West Coast?
An hour more of shift and roughly two hours more of flying, so slightly worse on both counts.