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Boston to Istanbul in December 2026 BOS → IST, SAW

Logan International Airport (BOS) → Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW)

For departures in December 2026, the cheapest return found recently is $874 with British Airways, 11 Dec – 24 Dec, found yesterday.

Return

In December 2026, the cheapest return fare on each of 8 departure dates is usually $848 to $1,027. Across all 19 departure dates we hold on this route, it is usually $778 to $967. Of the 2 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$874

11 Dec – 24 Dec · British Airways

Logan International Airport (BOS) → Istanbul New Airport (IST)

out 1 stop, back 1 stop

found yesterday

See prices for these datesCheck today's price

Cheapest we hold, of any age

$765

1 Dec – 13 Dec · Turkish Airlines

Logan International Airport (BOS) → Istanbul New Airport (IST)

out nonstop, back nonstop

found 4 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
1 Dec – 13 Dec$765Turkish Airlinesout nonstop, back nonstopfound 4 days agoSee prices for these dates
28 Dec – 13 Jan 2027$771Turkish Airlinesout nonstop, back nonstopfound 6 days agoSee prices for these dates
11 Dec – 24 Dec$874British Airwaysout 1 stop, back 1 stopfound yesterdaySee prices for these dates
12 Dec – 26 Dec$935United Airlinesout 3 stops, back 1 stopfound yesterdaySee prices for these dates
27 Dec – 13 Jan 2027$951Turkish Airlinesout nonstop, back nonstopfound 5 days agoSee prices for these dates

Every date we hold

8 departure dates

1 Dec – 13 Dec: $765, found 4 days ago11 Dec – 24 Dec: $874, found yesterday12 Dec – 26 Dec: $935, found yesterday13 Dec – 3 Jan 2027: $1,154, found 4 days ago16 Dec – 22 Dec: $985, found today19 Dec – 26 Dec: $1,386, found yesterday27 Dec – 13 Jan 2027: $951, found 5 days ago28 Dec – 13 Jan 2027: $771, found 6 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 13 Dec$765Turkish AirlinesLogan International Airport (BOS) → Istanbul New Airport (IST)out nonstop, back nonstopfound 4 days agoSee prices for these dates
11 Dec – 24 Dec$874British AirwaysLogan International Airport (BOS) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
12 Dec – 26 Dec$935United AirlinesLogan International Airport (BOS) → Sabiha Gokcen International Airport (SAW)out 3 stops, back 1 stopfound yesterdaySee prices for these dates
13 Dec – 3 Jan 2027$1,154Aer LingusLogan International Airport (BOS) → Istanbul New Airport (IST)out 2 stops, back 3 stopsfound 4 days agoSee prices for these dates
16 Dec – 22 Dec$985IcelandairLogan International Airport (BOS) → Istanbul New Airport (IST)out 2 stops, back 2 stopsfound todaySee prices for these dates
19 Dec – 26 Dec$1,386Air CanadaLogan International Airport (BOS) → Istanbul New Airport (IST)out 2 stops, back 1 stopfound yesterdaySee prices for these dates
27 Dec – 13 Jan 2027$951Turkish AirlinesLogan International Airport (BOS) → Istanbul New Airport (IST)out nonstop, back nonstopfound 5 days agoSee prices for these dates
28 Dec – 13 Jan 2027$771Turkish AirlinesLogan International Airport (BOS) → Istanbul New Airport (IST)out nonstop, back nonstopfound 6 days agoSee prices for these dates

Which month looks cheapest?

April 2027 is the cheapest month — from $704.

October 2026From $8922 departure dates24 Oct – 31 Oct · found 5 days agoSee prices for these dates
November 2026From $7944 departure dates1 Nov – 6 Nov · found yesterdaySee prices for these dates
December 2026From $7658 departure dates1 Dec – 13 Dec · found 4 days agoSee prices for these dates
January 2027From $7841 departure date4 Jan 2027 – 11 Jan 2027 · found yesterdaySee prices for these dates
March 2027From $7391 departure date7 Mar 2027 – 15 Mar 2027 · found 3 days agoSee prices for these dates
April 2027From $704Cheapest seen1 departure date26 Apr 2027 – 30 Apr 2027 · found yesterdaySee prices for these dates
June 2027From $9011 departure date2 Jun 2027 – 2 Jul 2027 · found 3 days agoSee prices for these dates
August 2027From $7651 departure date26 Aug 2027 – 30 Sept 2027 · found yesterdaySee prices for these dates

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work