Route brief · BOS → SCL
Boston → Santiago
$813
round-trip · too little price history on this route to compare
Nov 21 – Nov 28 · 7 nights
Avianca1 stop
Cached fare — the booking search re-prices live before you pay.
Destination briefSCLSantiagoAndes on the skyline, vineyards an hour out, and the longest country in the world starting at the door.Best windowOct–AprAirportsArturo Merino Benítez (SCL)All routes into SantiagoWhen this route gets cheap.
Best time to be in Santiago: Oct–Apr. 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 12.5 hours outbound, on a 7-night trip — ticketed under Avianca, which on a connecting fare need not operate every leg. At $813 for 8,429 km each way, that works out to about $48 per 1,000 km flown. That is about the $44 typical of long-haul fares here. Across the 9 departure cities we track at a similar distance from Santiago, this fare ranks 6th — 33% above the $612 from Miami. For context, the middle fare among the 18 routes of similar length we watch out of Boston is $778. 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
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
- Logan (BOS) ↔ Arturo Merino Benítez (SCL)
- Flight time
- ~12.5 hours outbound
- Distance
- ~8,429 km each way
- Airlines on the board
- Avianca
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Apr
BOS → SCL, answered.
How far in advance should I book BOS → Santiago?
We do not publish a number for this, because we cannot measure it yet.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 Boston to Santiago?
The current cheapest fares involve a connection, ticketed under Avianca. 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 September 1). 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 Santiago?
Lock the flight first — then compare stays for Nov 21 – Nov 28 · 7 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next BOS → SCL drop reaches you as soon as we find it.
Follow BOS → SCL