Great1 stop · 12h
MEX to MADSpain
Madrid
$552
usually $885
−38%
Most monthly lows $729–$1,054. Cheaper than every other month on record (5).
Flights · MEX → EZE
Mexico City to Buenos Aires
Best fare, round trip
$707
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Wed 11 Nov
- Return
- Sat 28 Nov
- Stay
- 17 nights
- Flight
- 1 stop · 11h
- Airline
Copa Airlines
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.
The cheapest itinerary we are tracking makes one stop and takes about 11 hours outbound, on a 17-night trip — ticketed under Copa Airlines, which on a connecting fare need not operate every leg. At $707 for 7,399 km each way, that works out to about $48 per 1,000 km flown. That is about the $44 per 1,000 km typical of long-haul fares here. Across the 9 departure cities we track at a similar distance from Buenos Aires, this fare ranks 3rd — 29% above the $550 from New York. That puts it in the cheaper half of the 17 routes of similar length we watch out of Mexico City, where the middle fare is $995. We have 3 months 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 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 38% higher than when tracking began on 8 Aug — $669 then versus $925 now, across 18 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 $597, on 18 Nov.
Cached day-level data for this route is sparse — 11 of 109 days priced, from 62 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
October 2026
November 2026
December 2026
1234567891011121314151617Friday 18 December: $1.3k. Compare fares from this day.1920212223242526272829Wednesday 30 December: $1.1k. Compare fares from this day.Thursday 31 December: $991. Compare fares from this day.
January 2027
12345678910111213141516171819202122232425262728293031
Cached fares · checked 15 Oct 2026
We are still collecting this route's months — 3 months of cached prices so far, too few to chart.
Route facts
- Airports
- Benito Juárez (MEX) · Felipe Ángeles (NLU) ↔ Ezeiza (EZE) · Aeroparque (AEP)
- Flight time
- ≈11 hours outbound
- Distance
- ≈7,399 km each way
- Airlines on the board
- Copa Airlines
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Dec · Mar–May
Good to know
MEX → EZE, answered.
How far in advance should I book MEX → 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. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Mexico City to Buenos Aires?
The current cheapest fares involve a connection, ticketed under Copa Airlines. 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 11–28 Nov · 17 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next MEX → EZE drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
GreatNonstop · 4.5h
MEX to PUJDominican Republic
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$343
usually $545
−37%
Most monthly lows $514–$574. Cheaper than every other month on record (4).
GoodNonstop · 2.5h
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$100
usually $135
−26%
Most monthly lows $131–$139. Cheaper than every other month on record (7).
Rare1 stop · 12.5h
NYC to EZEUnited States
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$550
usually $1,000
−45%
Most monthly lows $813–$1,015. Cheaper than every other month on record (4).
Great2 stops · 25.5h
BCN to EZESpain
Barcelona
$882
usually $1,310
−33%
Most monthly lows $932–$1,545. Cheaper than every other month on record (6).
Great1 stop · 16h
MAD to EZESpain
Madrid
$630
usually $910
−31%
Most monthly lows $703–$1,004. Cheaper than every other month on record (9).
