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 → PAR
Boston to Paris
Best fare, round trip
$601
−21%
below its usual $760
you keep $159
GoodFound
- Depart
- Fri 6 Nov
- Return
- Mon 9 Nov
- Stay
- 3 nights
- Flight
- 1 stop · 7.5h
- Airline
Aer Lingus
Most of this route’s monthly lows fall between $659 and $934. The drop beats 58% of measured fares on the board, over 6 observed months.
Cached fare — the booking search re-prices live before you pay.
FranceParisStill the benchmark. Croissant inflation is real, but a $380 crossing fixes the math.Best windowApr–Jun · Sep–OctAirportsCharles de Gaulle (CDG) · Orly (ORY)Every route into ParisFare seasonality
When this route gets cheap.
Fares bottom out in November around $601 and peak in December near $1,125, 87% dearer, across the 6 months we track. The cheapest itinerary we are tracking makes one stop and takes about 7.5 hours outbound, on a 3-night trip — ticketed under Aer Lingus, which on a connecting fare need not operate every leg. At $601 for 5,531 km each way, that works out to about $54 per 1,000 km flown. That is above the $43 per 1,000 km typical of medium-haul fares here. Across the 8 departure cities we track at a similar distance from Paris, this fare ranks 6th — 2.7× the $220 we hold from Abu Dhabi. That puts it in the cheaper half of the 21 routes of similar length we watch out of Boston, where the middle fare is $660. The best time to be in Paris: Apr–Jun · Sep–Oct.
Day-level prices for the next 4 months
Press a day to compare its fares
The median cached fare across this calendar is 8% higher than when tracking began on 8 Aug — $733 then versus $789 now, across 16 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 $394, on 4 Nov.
Cached day-level data for this route is sparse — 9 of 111 days priced, from 58 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
October 2026
November 2026
Sunday 1 November: $772. Compare fares from this day.234Thursday 5 November: $615. Compare fares from this day.Friday 6 November: $601. Compare fares from this day.789Tuesday 10 November: $662. Compare fares from this day.1112131415161718Thursday 19 November: $789. Compare fares from this day.Friday 20 November: $872. Compare fares from this day.21Sunday 22 November: $814. Compare fares from this day.2324252627282930
December 2026
12345678910111213141516171819202122Wednesday 23 December: $1.1k. Compare fares from this day.2425262728293031
January 2027
12345678910111213141516171819202122232425262728293031
Cached fares · checked 13 Oct 2026
Cheapest in Nov, around $601
21% below the $760 typical fare
$934Oct, above the usual price. Compare October fares.$601Nov, the cheapest month. Compare November fares.$1125Dec, above the usual price. Compare December fares.$761Feb ’27, around the usual price. Compare February fares.$659Apr, below the usual price. Compare April fares.$667May, below the usual price. Compare May fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, Boston to Paris, from cached prices.
Route facts
- Airports
- Logan (BOS) ↔ Charles de Gaulle (CDG) · Orly (ORY)
- Flight time
- ≈7.5 hours outbound
- Distance
- ≈5,531 km each way
- Typical price
- $760 round-trip (seasonal median)
- Airlines on the board
- Aer Lingus
- Itineraries
- Connections on current fares
- Best months to visit
- Apr–Jun · Sep–Oct
Good to know
BOS → PAR, answered.
Is $601 a good price for Boston to Paris?
Yes — the seasonal median for this route is around $760 round-trip. At $601 you're 21% below that, which we rate good for this route.
What is the cheapest month to fly from Boston to Paris?
Across 6 months of cached-fare history, Nov comes out cheapest on this route. The best months to actually be in Paris are Apr–Jun · Sep–Oct — when those overlap, that's your window.
How far in advance should I book BOS → Paris?
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 6 months of cached fares, Nov comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from Boston to Paris?
The current cheapest fares involve a connection, ticketed under Aer Lingus. 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 Paris?
Lock the flight first — then compare stays for 6–9 Nov · 3 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next BOS → PAR drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
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BOS to TYOJapan
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$910
usually $1,730
−47%
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$518
usually $800
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ExceptionalNonstop · 1.5h
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$44
usually $105
−58%
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SFO to PARUnited States
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$487
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Most monthly lows $657–$905. Cheaper than every other month on record (3).
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ATH to PARGreece
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$86
usually $150
−43%
Most monthly lows $149–$194. Cheaper than every other month on record (6).
