ExceptionalNonstop · 1.5h
SFO to LASUnited States
Las Vegas
$61
usually $155
−61%
Most monthly lows $130–$295. Cheaper than every other month on record (5).
Flights · SFO → BKK
San Francisco to Bangkok
Best fare, round trip
$561
−31%
below its usual $810
you keep $249
GreatFound
- Depart
- Tue 29 Dec
- Return
- Tue 26 Jan
- Stay
- 28 nights
- Flight
- 1 stop · 18.5h
- Airline
United
Most of this route’s monthly lows fall between $722 and $817. The drop beats 79% of measured fares on the board, over 5 observed months.
Cached fare — the booking search re-prices live before you pay.
ThailandBangkokThe backpacker cliché that still delivers: gold temples, boat noodles, $12 street-food feasts.Best windowNov–FebAirportsSuvarnabhumi (BKK) · Don Mueang (DMK)Every route into BangkokFare seasonality
When this route gets cheap.
Fares bottom out in December around $561 and peak in April near $858, 53% dearer, across the 5 months we track. The cheapest itinerary we are tracking makes one stop and takes about 18.5 hours outbound, on a 28-night trip — ticketed under United, which on a connecting fare need not operate every leg. At $561 for 12,745 km each way, that works out to about $22 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. Across the 15 departure cities we track at a similar distance from Bangkok, this fare ranks 6th — 25% above the $448 from New York. That puts it in the cheaper half of the 40 routes of similar length we watch out of San Francisco, where the middle fare is $837. The best time to be in Bangkok: Nov–Feb.
The 5 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 7% higher than when tracking began on 8 Aug — $817 then versus $877 now, across 21 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $357, on 31 Aug.
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cached fares · checked 17 Oct 2026
Cheapest in Dec, around $561
31% below the $810 typical fare
$561Dec, the cheapest month. Compare December fares.$817Jan ’27, around the usual price. Compare January fares.$808Feb, around the usual price. Compare February fares.$722Mar, below the usual price. Compare March fares.$858Apr, above the usual price. Compare April fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, San Francisco to Bangkok, from cached prices.
Route facts
- Airports
- SFO · Oakland (OAK) · San José (SJC) ↔ Suvarnabhumi (BKK) · Don Mueang (DMK)
- Flight time
- ≈18.5 hours outbound
- Distance
- ≈12,745 km each way
- Typical price
- $810 round-trip (seasonal median)
- Airlines on the board
- United
- Itineraries
- Connections on current fares
- Best months to visit
- Nov–Feb
Good to know
SF → BKK, answered.
Is $561 a good price for San Francisco to Bangkok?
Yes — the seasonal median for this route is around $810 round-trip. At $561 you're 31% below that, which we rate great for this route.
What is the cheapest month to fly from San Francisco to Bangkok?
Across 5 months of cached-fare history, Dec comes out cheapest on this route. The best months to actually be in Bangkok are Nov–Feb — when those overlap, that's your window.
How far in advance should I book SF → Bangkok?
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. What we can measure is which month is cheap: across 5 months of cached fares, Dec comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from San Francisco to Bangkok?
The current cheapest fares involve a connection, ticketed under United. 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 17 October). 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 Bangkok?
Lock the flight first — then compare stays for 29 Dec – 26 Jan '27 · 28 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SF → BKK drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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- Airline
Turkish Airlines· $18 per 1,000 km
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$514
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