Exceptional1 stop · 17.5h
BOS to BKKThailand
Bangkok
$506
usually $1,140
−56%
Most monthly lows $915–$1,187. Cheaper than every other month on record (5).
- Travel dates
- 7 Mar '27 – 17 Apr '27 · 41 nights
- Airline
Turkish Airlines· $18 per 1,000 km
Flights · BOS → LIM
Boston to Lima
Best fare, round trip
$728
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Sun 1 Nov
- Return
- Sun 8 Nov
- Stay
- 7 nights
- Flight
- 2 stops · 11h
- Airline
LATAM
Cached fare — the booking search re-prices live before you pay.
PeruLimaThe best restaurant city in South America, on a cliff above the Pacific — and the way to Cusco.Best windowDec–AprAirportsJorge Chávez (LIM)Every route into LimaFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes 2 stops and takes about 11 hours outbound, on a 7-night trip — ticketed under LATAM, which on a connecting fare need not operate every leg. At $728 for 6,080 km each way, that works out to about $60 per 1,000 km flown. That is above the $44 per 1,000 km typical of long-haul fares here. Across the 7 departure cities we track at a similar distance from Lima, this fare ranks 7th — 2.1× the $347 we hold from Washington. For context, the middle fare among the 23 routes of similar length we watch out of Boston is $664. We have 2 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 Lima: Dec–Apr.
The one day we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 33% lower than when tracking began on 8 Aug — $1,106 then versus $745 now, across 6 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 $550, on 2 Nov.
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 10 Oct 2026
We are still collecting this route's months — 2 months of cached prices so far, too few to chart.
Route facts
- Airports
- Logan (BOS) ↔ Jorge Chávez (LIM)
- Flight time
- ≈11 hours outbound
- Distance
- ≈6,080 km each way
- Airlines on the board
- LATAM
- Itineraries
- Connections on current fares
- Best months to visit
- Dec–Apr
Good to know
BOS → LIM, answered.
How far in advance should I book BOS → Lima?
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 Boston to Lima?
The current cheapest fares involve a connection, ticketed under LATAM. 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 11 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 Lima?
Lock the flight first — then compare stays for 1–8 Nov · 7 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next BOS → LIM drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
Rare1 stop · 17h
BOS to TYOJapan
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$910
usually $1,730
−47%
Most monthly lows $1,262–$1,730. Cheaper than every other month on record (3).
GreatNonstop · 8.5h
BOS to ISTTürkiye
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$518
usually $800
−35%
Most monthly lows $760–$892. Cheaper than every other month on record (8).
Rare1 stop · 10.5h
WAS to LIMUnited States
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$347
usually $630
−45%
Most monthly lows $409–$630. Cheaper than every other month on record (3).
GreatNonstop · 8h
NYC to LIMUnited States
New York
$430
usually $655
−34%
Most monthly lows $586–$788. Cheaper than every other month on record (6).
Great1 stop · 17h
ROM to LIMItaly
Rome
$762
usually $1,140
−33%
Most monthly lows $1,099–$1,140. Cheaper than every other month on record (3).
