LA → Bangkok
LAX to Bangkok Jet Lag: How Long It Lasts and How to Beat It
Bangkok is fourteen hours ahead of Los Angeles. Fourteen forward is the same as ten backward, and ten backward is both shorter and easier, so your body will delay rather than advance. Go to bed later before you fly, not earlier. There is no nonstop, so total travel runs eighteen to twenty-one hours through East Asia, and arrival is usually late at night.
Try Flightmode — Save 50%Why the direction is closer than it looks
Compared to LA to Tokyo, where the delay path wins clearly, Bangkok sits closer to the midpoint. That means the first two days of light choices have more leverage, and getting them wrong costs you an extra two or three days of recovery.
Routing through Tokyo, Seoul, or Taipei puts you in useful daylight during the layover if the stop is daytime. A midnight connection in the Gulf gives you nothing circadian and adds fatigue. When you have a choice of connections, pick the one that puts you outside during local daytime.
How It Works
- Push your clock later from LA. Two days before you fly, you'll stay up later, targeting around 2 a.m. bedtimes, and keep LA mornings dim. Bangkok on this route is a delay shift, and staying up late at home is how you start.
- Seek light in the LA evening. From 9 p.m. to 1 a.m. on pre-flight nights, you'll get bright light when you'd normally wind down. It tells your body daytime runs late, which connects to Bangkok's rhythm.
- Use the midday flight to Bangkok. Leaving at 11:30 a.m. and landing at 3:15 p.m., you'll take Flightmode Sleep after takeoff, nap mid-flight if needed, then stay awake for landing. You'll step off ready to use the Bangkok afternoon.
- Settle into Bangkok on arrival. Get outside from 4 p.m. to 10 p.m. on day one and take Flightmode Sleep around 1 a.m. By day two you're waking on Bangkok time after an 8-hour shift.
- Flightmode Sleep and Wake keep the delay on track. Sleep helps you hold the later bedtime, and Wake covers caffeine when LA hours pull you back.
Your LA → Bangkok jet lag plan
UA39 · 10-hour delay shift
Times shown in departure airport time.
Beat the LA → Bangkok shift
Your Jet Lag Plan, in a Gummy
On a route where the two directions are close, the Travel Planner picks one from your actual routing and holds every light window to it, which is what stops the drift.
- Sleep gummy + Wake gummy in every kit
- AI planner timed to LA → Bangkok
- Melatonin-free, no morning grogginess
- 30-day First Flight guarantee
What Asia-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
Is LA to Bangkok eastbound or westbound for jet lag?
Fourteen hours forward is ten hours back, and your body takes the ten. It behaves as a westbound delay.
Should I go to bed earlier before flying to Bangkok from LA?
No. Later. The delay is the shorter path from the West Coast.
How long does jet lag last flying from LA to Bangkok?
Nine to ten days untreated, four to five with a delay-direction plan.
Which layover is best for jet lag?
Tokyo, Seoul or Taipei with daylight on the ground. All three sit on the right part of the delay path.
Is New York to Bangkok the same?
No. From New York it is eleven hours forward, which is a true advance. The direction flips depending on your origin.