Los Angeles to Honolulu turbulence
Five hours over open Pacific with nowhere to divert, which is most of why this route worries people. The air itself is usually the calm part. Here is the live forecast.
Local time at the departure airport.
Two thousand miles of open water
There is no land between the California coast and the Hawaiian chain, which changes what the weather over the route can do — and what it cannot.
Live forecast along the actual great circle, shaded by the same four-level scale the app uses.
Why open ocean is usually smoother, not rougher
Two of the three main sources of turbulence need something this route does not have. Mountain waves need mountains, and there are none for two thousand miles. Strong convective storms need a lot of heat and moisture converging, which happens over warm land and near the equator far more than over the open subtropical Pacific. What is left is the jet stream — and on this route it is usually well to the north, not across the track.
So the honest answer is that Los Angeles to Honolulu is, on most days, one of the smoother long flights you can take. Its reputation comes from something else: it is five hours over water with no alternate airport, and that is an uncomfortable fact to sit with regardless of how still the air is. Those are different problems, and the second one is not solved by a forecast.
What does show up: the descent into Honolulu. The trade winds blow steadily across the Hawaiian islands, and air flowing over and around volcanic terrain that rises steeply out of the sea gets disturbed in exactly the way air over any mountain does. The last twenty minutes are often the bumpiest part of the flight, which surprises people who have had a glassy crossing.
Los Angeles to Honolulu, what changes the ride
- ✓The crossing itself is usually smooth. No terrain, limited convection and a jet stream that normally sits north of the track.
- ✓The arrival is the bumpy part. Trade winds across steep island terrain make the approach into Honolulu lively on most days, and it is short-lived.
- ✓Winter brings the jet stream closer. Between roughly December and March the Pacific jet can dip far enough south to cross the route, which is when a genuinely bumpy crossing becomes possible.
- ✓ETOPS is why it is routine. Twin-engine aircraft on this route operate under rules requiring them to stay within a set single-engine flying time of a diversion airport for the entire crossing. The empty map is planned for, not ignored.
- ✓Widebodies and narrowbodies both fly it. An A321neo will feel a given gust more than a 777 will, purely because it is lighter.
Los Angeles to Honolulu turbulence questions
Is the flight to Hawaii bumpy?
Usually less than people expect. The crossing is often smooth for hours at a time, and the turbulence that does occur is most commonly on the descent into Honolulu, where the trade winds meet island terrain. Winter can put the Pacific jet stream across the route, which is the main reason a crossing turns rough.
What happens if something goes wrong over the ocean?
This is the real question behind most searches for this route, and it is a fair one. Twin-engine aircraft flying it operate under ETOPS rules, which require the flight to remain within a certified single-engine flying time of a suitable airport for the whole route — so the track, the aircraft and the crew are all certified for exactly this. An airliner is also certified to fly, climb and land on one engine.
Why is landing in Honolulu bumpy?
The trade winds blow almost constantly across the Hawaiian islands, and the islands are steep volcanic terrain rising straight out of the ocean. Air forced over and around them becomes turbulent downwind, exactly as it would over any mountain range. It is brief, it is normal, and it happens on most arrivals.
Which direction is smoother?
Westbound to Honolulu is usually a little longer because it works against the prevailing flow, and eastbound back to Los Angeles can pick up a useful tailwind. Neither direction is reliably smoother than the other — the weather on the day matters more.
How long is the flight?
Around five and a half hours westbound and a little under five eastbound, depending on winds. The forecaster above estimates the time from distance, so a published schedule can differ by a few minutes.
Five hours, answered before you board.
FlyBud forecasts your actual flight, updates it with every model run, and keeps working when the signal stops over the Pacific.