Rare1 stop · 16.5h
BKK to BCNSpain
Barcelona
$516
usually $870
−41%
Most monthly lows $697–$881. Cheaper than every other month on record (5).
Flights · BKK → HOU
Bangkok to Houston
Best fare, round trip
$868
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Sat 14 Aug
- Return
- Sat 4 Sep
- Stay
- 21 nights
- Flight
- 1 stop · 18h
- Airline
Thai Airways
Cached fare — the booking search re-prices live before you pay.
United StatesHoustonUnited’s Latin America gateway, the best Vietnamese food in the country, and NASA on the edge of town.Best windowMar–May · Oct–NovAirportsBush (IAH) · Hobby (HOU)Every route into HoustonFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes one stop and takes about 18 hours outbound, on a 21-night trip — ticketed under Thai Airways, which on a connecting fare need not operate every leg. At $868 for 14,885 km each way, that works out to about $29 per 1,000 km flown. That is well under the $42 per 1,000 km that ultra-long-haul fares on this board typically run. Of the 8 departure cities we track at a similar distance from Houston, this is the cheapest right now — 12% under the next one, Guangzhou. It is also the cheapest of the 15 routes of similar length we watch out of Bangkok. We have 1 month of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage. Fare history here is still too short to name a cheap season. The best time to be in Houston: Mar–May · Oct–Nov.
We are still collecting this route's months — 1 month of cached prices so far, too few to chart.
Route facts
- Airports
- Suvarnabhumi (BKK) · Don Mueang (DMK) ↔ Bush (IAH) · Hobby (HOU)
- Flight time
- ≈18 hours outbound
- Distance
- ≈14,885 km each way
- Airlines on the board
- Thai Airways
- Itineraries
- Connections on current fares
- Best months to visit
- Mar–May · Oct–Nov
Good to know
BKK → HOU, answered.
How far in advance should I book BKK → Houston?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Bangkok to Houston?
The current cheapest fares involve a connection, ticketed under Thai Airways. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 26 September). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Houston?
Lock the flight first — then compare stays for 14 Aug '27 – 4 Sep '27 · 21 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next BKK → HOU drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
Great1 stop · 12h
BKK to TLVIsrael
Tel Aviv
$566
usually $825
−31%
Most monthly lows $823–$825. Cheaper than every other month on record (3).
Good1 stop · 14.5h
BKK to BEGSerbia
Belgrade
$613
usually $860
−29%
Most monthly lows $830–$947. Cheaper than every other month on record (7).
Rare1 stop · 4.5h
LAX to HOUUnited States
Los Angeles
$133
usually $230
−42%
Most monthly lows $134–$232. Cheaper than every other month on record (3).
Rare1 stop · 5h
WAS to HOUUnited States
Washington
$188
usually $320
−41%
Most monthly lows $275–$320. Cheaper than every other month on record (3).
Good1 stop · 5h
SFO to HOUUnited States
San Francisco
$215
usually $300
−28%
Most monthly lows $279–$302. Cheaper than every other month on record (3).