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 → EZE
Bangkok to Buenos Aires
Best fare, round trip
$1,665
−4%
below its usual $1,730
you keep $65
Found
- Depart
- Tue 1 Dec
- Return
- Tue 15 Dec
- Stay
- 14 nights
- Flight
- 1 stop · 24.5h
- Airline
Ethiopian
Most of this route’s monthly lows fall between $1,717 and $1,732. The drop beats 3% of measured fares on the board, over 8 observed months.
Cached fare — the booking search re-prices live before you pay.
ArgentinaBuenos AiresEuropean bones, Latin hours — and a peso that has made this one of the cheapest big cities to spend a week in.Best windowOct–Dec · Mar–MayAirportsEzeiza (EZE) · Aeroparque (AEP)Every route into Buenos AiresFare seasonality
When this route gets cheap.
Fares bottom out in December around $1,665 and peak in October near $2,006, 20% dearer, across the 8 months we track. The cheapest itinerary we are tracking makes one stop and takes about 24.5 hours outbound, on a 14-night trip — ticketed under Ethiopian, which on a connecting fare need not operate every leg. At $1,665 for 16,868 km each way, that works out to about $49 per 1,000 km flown. That is above the $42 per 1,000 km typical of ultra-long-haul fares here. Across the 13 departure cities we track at a similar distance from Buenos Aires, this fare ranks 7th — 32% above the $1,264 from Delhi. For context, the middle fare among the 16 routes of similar length we watch out of Bangkok is $1,466. The best time to be in Buenos Aires: Oct–Dec · Mar–May.
Day-level prices for the next 4 months
Press a day to compare its fares
The median cached fare across this calendar is 14% higher than when tracking began on 8 Aug — $1,818 then versus $2,072 now, across 14 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 $1,578, on 16 Nov.
Cached day-level data for this route is sparse — 16 of 111 days priced, from 69 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
October 2026
November 2026
1234567891011Thursday 12 November: $1.7k. Compare fares from this day.Friday 13 November: $1.7k. Compare fares from this day.1415Monday 16 November: $1.7k. Compare fares from this day.1718192021222324252627282930
December 2026
Tuesday 1 December: $1.7k. Compare fares from this day.23Friday 4 December: $1.7k. Compare fares from this day.56789Thursday 10 December: $2.1k. Compare fares from this day.111213Monday 14 December: $2.2k. Compare fares from this day.Tuesday 15 December: $2.3k. Compare fares from this day.1617181920Monday 21 December: $2.5k. Compare fares from this day.22232425Saturday 26 December: $2.1k. Compare fares from this day.2728293031
January 2027
12345678910Monday 11 January: $1.7k. Compare fares from this day.1213141516171819202122232425262728293031
Cached fares · checked 13 Oct 2026
Cheapest in Dec, around $1,665
4% below the $1,730 typical fare
$2006Oct, above the usual price. Compare October fares.$1699Nov, around the usual price. Compare November fares.$1665Dec, the cheapest month. Compare December fares.$1670Jan ’27, around the usual price. Compare January fares.$1717Feb, around the usual price. Compare February fares.$1725Mar, around the usual price. Compare March fares.$1732Jun, around the usual price. Compare June fares.$1751Jul, around the usual price. Compare July fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, Bangkok to Buenos Aires, from cached prices.
Route facts
- Airports
- Suvarnabhumi (BKK) · Don Mueang (DMK) ↔ Ezeiza (EZE) · Aeroparque (AEP)
- Flight time
- ≈24.5 hours outbound
- Distance
- ≈16,868 km each way
- Typical price
- $1,730 round-trip (seasonal median)
- Airlines on the board
- Ethiopian
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Dec · Mar–May
Good to know
BKK → EZE, answered.
Is $1,665 a good price for Bangkok to Buenos Aires?
Only slightly. The seasonal median is around $1,730 round-trip and this fare is 4% under it. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from Bangkok to Buenos Aires?
Across 8 months of cached-fare history, Dec comes out cheapest on this route. The best months to actually be in Buenos Aires are Oct–Dec · Mar–May — when those overlap, that's your window.
How far in advance should I book BKK → Buenos Aires?
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 8 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 Bangkok to Buenos Aires?
The current cheapest fares involve a connection, ticketed under Ethiopian. 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 Buenos Aires?
Lock the flight first — then compare stays for 1–15 Dec · 14 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next BKK → EZE drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
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usually $825
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$882
usually $1,310
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Great1 stop · 16h
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$630
usually $910
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Most monthly lows $703–$1,004. Cheaper than every other month on record (9).
