Route brief · WAS → EZE
Washington → Buenos Aires
$990
round-trip · too little price history on this route to compare
Feb 13 '27 – Feb 20 '27 · 7 nights
Copa Airlines1 stop
Cached fare — the booking search re-prices live before you pay.
Destination briefEZEBuenos 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)All routes into Buenos AiresWhen this route gets cheap.
Best time to be in Buenos Aires: Oct–Dec · Mar–May. Fare history for this route is still thin, so we make no seasonal call yet.
The cheapest itinerary we are tracking makes one stop and takes about 12 hours outbound, on a 7-night trip — ticketed under Copa Airlines, which on a connecting fare need not operate every leg. At $990 for 8,414 km each way, that works out to about $59 per 1,000 km flown. That is above the $44 typical of long-haul fares here. Across the 14 departure cities we track at a similar distance from Buenos Aires, this fare ranks 10th — 2.1× the $465 we hold from Miami. For context, the middle fare among the 25 routes of similar length we watch out of Washington is $702. 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.
The one day we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 2% lower than when tracking began on Aug 8 — $746 then versus $731 now, across 4 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 $731, on Oct 19.
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.
Route facts
- Airports
- Dulles (IAD) · Reagan National (DCA) · Baltimore (BWI) ↔ Ezeiza (EZE) · Aeroparque (AEP)
- Flight time
- ~12 hours outbound
- Distance
- ~8,414 km each way
- Airlines on the board
- Copa Airlines
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Dec · Mar–May
WAS → EZE, answered.
How far in advance should I book WAS → 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We do not publish a number for this, because we cannot measure it yet.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. See /guides/what-moves-a-flight-price/ for the levers we can measure.
Are there nonstop flights from Washington to Buenos Aires?
The current cheapest fares involve a connection, ticketed under Copa Airlines. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on August 24). 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 Feb 13 '27 – Feb 20 '27 · 7 nights.
Browse hotels ↗
Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next WAS → EZE drop reaches you as soon as we find it.
Follow WAS → EZE