How Long Is the Flight to Thailand?
Flying time from New York (JFK) to Bangkok Suvarnabhumi is about 18 h by distance, which is what a nonstop would take. Most trips from the US connect, so add the layover: at least 2 h more. From the six largest US hubs the flying time ranges from ≈ 15 h 35 min (Seattle) to ≈ 19 h 5 min (Houston).
Estimates updated September 29, 2026 · How we calculate
Direct flights to Thailand from the US
Our route database has no confirmed nonstop schedules from US airports to Thailand yet, so we don't claim one exists. Airlines add and drop long-haul routes by season. To check a nonstop from your city, search the airline's own site or the departures board of your airport for Bangkok Suvarnabhumi (BKK). If there is none, the usual way is one connection in a large hub in Asia, the Middle East or Europe.
Estimate your flight time
Estimated by distance — not a confirmed schedule.
| From | Distance to BKK | Flying time | With one layover |
|---|---|---|---|
| New YorkJFK | 8,669 mi | ≈ 18 h | ≈ 20 h+ |
| Los AngelesLAX | 8,261 mi | ≈ 17 h 10 min | ≈ 19 h 10 min+ |
| ChicagoORD | 8,554 mi | ≈ 17 h 45 min | ≈ 19 h 45 min+ |
| SeattleSEA | 7,451 mi | ≈ 15 h 35 min | ≈ 17 h 35 min+ |
| San FranciscoSFO | 7,924 mi | ≈ 16 h 30 min | ≈ 18 h 30 min+ |
| HoustonIAH | 9,237 mi | ≈ 19 h 5 min | ≈ 21 h 5 min+ |
Example: leave New York at 10:00 AM with one connection and you land around 5:00 PM the next day Thailand time (≈ 20 h door to door, estimate).
Finding cheaper flights to Thailand
We don't show fares: prices change by the hour, and flight search engines do that job better. What we can tell you is what moves the price. Fares follow the season, so check the Thailand weather by month and aim for the shoulder months, when the weather is still good but demand is lower. A connection through a big hub is usually cheaper than the fastest option, and it costs you the layover time shown above. Flexible dates help more than anything else.
Flights to Thailand: FAQ
How long is the flight to Thailand?
By distance, flying time from the US is about 15 h 35 min to 19 h 5 min depending on your hub, ≈ 18 h from New York. With one connection, add at least 2 h for the layover. These are estimates, not schedules.
Are there direct flights to Thailand from the US?
Our route database has no confirmed nonstop schedule from a US airport to Thailand. Check your airline or airport departures board for BKK: nonstop long-haul routes come and go by season.
How long is the flight to Thailand with a layover?
Add the layover to the flying time: from New York that is ≈ 20 h or more with a 2 h connection. Long layovers can add several hours.
What's the time difference with Thailand?
Right now Thailand is 11 hours ahead of New York. See the live clock and your own city on our Thailand time page.
Is there a nonstop flight from my city?
We don't confirm US schedules yet. Use the estimate above for the flying time, and check the airline for a nonstop to BKK.
How we calculate
Flight times on this page are estimates by distance, not a schedule. We take the great-circle distance between the airports, add 5% because real airways are longer than a straight line, divide by an average cruise speed of 850 km/h (528 mph) and add 45 minutes for taxi, climb and descent. Connections add 2 h for the layover. Results are rounded to 5 minutes. Wind is ignored: eastbound flights are usually faster, westbound slower.
Our route database holds no confirmed schedules from US airports yet, so we never state that a nonstop exists. Schedules change by season: check dates with the airline before you book.
