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$278+ Cheap flights from Boston (BOS) to Istanbul (IST)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — IST
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
1 adult, Economy
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Find cheap flights from Boston to Istanbul with Cheapflights

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Cheapflights Tip: The best prices from Boston Logan Intl to Istanbul are usually found in November or January, booked 88 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Boston to Istanbul

Cheapest flights from Boston to Istanbul
Explore the most affordable flight options available from Boston to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

This KLM deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/177:30 pm
BOS
-
IST
2 stops14h 25m
Multiple Airlines
Thu 4/24:25 am
IST
-
BOS
1 stop16h 08m
Multiple Airlines
Deal found 2/25$547
This Air France deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:00 pm
BOS
-
IST
2 stops14h 20m
Multiple Airlines
Fri 4/174:25 am
IST
-
BOS
1 stop17h 30m
Multiple Airlines
Deal found 2/24$548
This Air France deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:00 pm
BOS
-
IST
2 stops14h 20m
KLM
Sat 4/116:00 am
IST
-
BOS
1 stop17h 25m
KLM
Deal found 2/24$554
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:55 pm
BOS
-
IST
1 stop23h 25m
Delta
Tue 12/154:50 am
IST
-
BOS
1 stop19h 30m
Delta
Deal found 2/24$555
This FlightHub deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/189:00 pm
BOS
-
IST
Nonstop9h 25m
Turkish Airlines
Tue 3/314:40 pm
IST
-
BOS
Nonstop10h 15m
Turkish Airlines
Deal found 2/25$557
This FlightHub deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:50 pm
BOS
-
IST
Nonstop9h 20m
Turkish Airlines
Wed 5/134:40 pm
IST
-
BOS
Nonstop10h 15m
Turkish Airlines
Deal found 2/25$559
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:55 pm
BOS
-
IST
2 stops21h 00m
Delta
Mon 11/94:50 am
IST
-
BOS
1 stop19h 30m
Delta
Deal found 2/27$560
This FlightHub deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/179:00 pm
BOS
-
IST
Nonstop9h 25m
Turkish Airlines
Thu 4/24:40 pm
IST
-
BOS
Nonstop10h 15m
Turkish Airlines
Deal found 2/25$561
This oojo deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/19:50 pm
BOS
-
IST
Nonstop9h 20m
Turkish Airlines
Thu 4/94:40 pm
IST
-
BOS
Nonstop10h 15m
Turkish Airlines
Deal found 2/25$562
This KLM deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/189:50 pm
BOS
-
IST
1 stop12h 05m
Multiple Airlines
Tue 3/314:25 am
IST
-
BOS
1 stop16h 08m
Multiple Airlines
Deal found 2/27$563
This KLM deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/159:50 pm
BOS
-
IST
1 stop12h 05m
KLM
Tue 3/314:25 am
IST
-
BOS
1 stop17h 30m
KLM
Deal found 2/27$564
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:55 pm
BOS
-
IST
1 stop23h 25m
Delta
Mon 12/145:55 pm
IST
-
BOS
2 stops29h 27m
Delta
Deal found 2/24$565

Find flight deals from Boston to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$547
(KLM)

One-way from

$278
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$709

Good round-trip deal

$678 or less

Good one-way deal

$471 or less
Provider with most accurate pricing for Boston Logan Intl-Istanbul flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Istanbul flights.
Search Deals
From Boston Logan Intl to Istanbul
Search Deals
One-way flight from Boston Logan Intl to Istanbul
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($188 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Istanbul.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Istanbul.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Istanbul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 27, 2026.
Use the filters below to find and compare flights from Boston to Istanbul Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 3/17

7:30 pm-4:55 pm

2 stops14h 25m

Istanbul

Thu 4/2

4:25 am-1:33 pm

1 stop16h 08m

$547

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Mon 3/16

8:10 pm-4:55 pm

1 stop13h 45m

Istanbul

Mon 3/30

5:20 pm-4:25 pm

1 stop30h 05m

$572

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Sun 3/29

5:10 pm-3:30 am

1 stop27h 20m

Istanbul

Sun 4/12

5:20 pm-1:13 pm

1 stop26h 53m

$578

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Thu 4/30

5:30 am-9:35 pm

2 stops33h 05m

Istanbul

Mon 5/11

1:55 pm-3:40 pm

1 stop32h 45m

$619

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Sun 4/12

7:05 pm-3:30 am

1 stop25h 25m

Istanbul

Tue 4/21

6:00 am-11:27 pm

2 stops24h 27m

$677

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Thu 4/30

12:30 pm-4:20 pm

2 stops20h 50m

Istanbul

Mon 5/4

5:20 pm-1:10 pm

1 stop26h 50m

$734

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 3/17

7:30 pm-4:55 pm

2 stops14h 25m

Istanbul

Wed 3/25

4:50 am-5:20 pm

1 stop19h 30m

$749

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 3/10

1:00 pm-4:55 pm

2 stops20h 55m

Istanbul

Tue 3/24

5:55 pm-7:55 pm

1 stop33h 00m

$766

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 3/10

9:30 pm-3:50 am

1 stop23h 20m

Istanbul

Thu 3/26

4:50 am-2:30 pm

1 stop16h 40m

$772

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 3/24

12:07 pm-10:45 pm

3 stops27h 38m

Istanbul

Mon 3/30

1:55 pm-7:12 pm

2 stops36h 17m

$774

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Boston to Istanbul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Istanbul in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Istanbul Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Istanbul Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Istanbul Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Istanbul Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Istanbul Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Istanbul Airport

How far ahead should I book a flight from Boston to Istanbul Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Istanbul. Price data was last updated on February 20, 2026.

Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Istanbul Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to Istanbul Airport?

Currently, October is the cheapest month in which you can book a flight from Boston to Istanbul Airport (average of $374). Flying from Boston to Istanbul Airport in May is currently the most expensive (average of $728). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to IST?

Find hourly flight availability from Boston to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 27, 2026.

When flying from Boston to Istanbul Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated February 27, 2026.
See what other customers who have flown with KLM, Turkish Airlines, and JetBlue from Boston to Istanbul Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,460 reviews

Comfort

7.6

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,460 reviews
KLM
7.7
Good
1,460 reviews

Comfort

7.6

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Turkish Airlines
7.3
Good
4,238 reviews
KLM
7.7
Good
1,460 reviews

Comfort

7.6

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
JetBlue
7.2
Good
2,896 reviews
KLM
7.7
Good
1,460 reviews

Comfort

7.6

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,816 reviews
KLM
7.7
Good
1,460 reviews

Comfort

7.6

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,772 reviews
KLM
7.7
Good
1,460 reviews

Comfort

7.6

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from Boston to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Istanbul?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Istanbul. 12 airlines have flights from Logan Intl to Istanbul on a regular basis. Booking flights from Boston Logan Intl to Istanbul should not be difficult; the airport handles an average of 4 outbound flights to Istanbul per day.

  • How long is the flight from Boston to Istanbul Airport?

    KLM, Delta, and United Airlines can get you from Boston to Istanbul Airport in just under 13h 45m. Your travel time can differ by up to 19h 20m. Airlines will cover a distance of 4797 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Boston to Istanbul Airport round-trip?

    Icelandair, at $372, was found to be the cheapest airline from Boston to Istanbul Airport.Alternate airlines to your destination round-trip include British Airways and Delta. Users have found that Icelandair is 56% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Boston to Istanbul Airport one-way?

    The cheapest airlines for a one-way flight from Boston to Istanbul Airport are Lufthansa ($289), Etihad Airways ($357), and British Airways ($398).

  • What are the most reliable airlines from Boston to Istanbul Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Istanbul Airport on time: Thai Airways (45%), JetBlue (45%), Turkish Airlines (45%).

  • What are the cheapest flights from Boston to Istanbul Airport?

    Looking at all options, your cheapest flight can be booked for $343. While the most popular route (Boston Logan Intl - Istanbul) can be booked for $528 on average, our data indicates $1,756 when flying from Boston to Istanbul Airport.

  • Where are the most common layover locations when flying from Boston to Istanbul Airport?

    Boston to Istanbul Airport flights have a layover in Frankfurt am Main most often.

  • What are some popular things to do or see while on a layover in Frankfurt am Main?

    Most Frankfurt am Main visitors opt to spend their time experiencing Römerberg, Oper Frankfurt, and Konstablerwache. Those on a layover in Frankfurt am Main interested in visiting Römerberg, Oper Frankfurt, or Konstablerwache can do so by traveling 7.4 mi, 7.0 mi, and 7.7 mi, respectively from Frankfurt am Main. Travelers can book a car rental at Frankfurt am Main for about $49 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Boston to Istanbul Airport flights?

    Boston to Istanbul Airport flights that have layovers will least frequently stop in London.

  • Can I find deals for flights from Boston to Istanbul that include hotel bookings?

    Yes. In addition to deals on Boston to Istanbul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Istanbul.

  • Can I find deals for business class flights from Boston to Istanbul?

    Yes. Cheapflights offers flight deals from Boston to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Istanbul Airport?

    Currently, October is the cheapest month in which you can book a flight from Boston to Istanbul Airport (average of $374). Flying from Boston to Istanbul Airport in May is currently the most expensive (average of $728). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

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Top 10 airlines flying from Boston to Istanbul

Discover the top 10 airlines that operate flights from Boston to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$372Average$415FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$473Average$686FlexibilityNo cancel feeOn-time70%
DeltaCheapest$547Average$974FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$559Average$663FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$560Average$1,046FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$587Average$1,110FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$588Average$743FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$593Average$712FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$598Average$871FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$707Average$765FlexibilityNo cancel feeOn-time68%

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