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Cheap flights from Boston to Istanbul Airport from £248

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — IST
5 Apr — 12 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Istanbul

Enter your travel dates to find the best prices.

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 6 March 2026.

Mon 26/1019:30
BOS
-
IST
1 stop25h 20m
Delta
Mon 9/1104:50
IST
-
BOS
1 stop19h 30m
Delta
Deal found 1/3£426
Sun 5/418:55
BOS
-
IST
1 stop14h 25m
KLM
Sun 19/404:25
IST
-
BOS
1 stop22h 10m
KLM
Deal found 4/3£427
Wed 18/320:10
BOS
-
IST
1 stop13h 45m
Multiple Airlines
Thu 2/404:25
IST
-
BOS
1 stop16h 08m
Multiple Airlines
Deal found 3/3£429
Sun 3/517:45
BOS
-
IST
1 stop20h 50m
Lufthansa
Tue 12/503:45
IST
-
BOS
1 stop20h 55m
Lufthansa
Deal found 4/3£431
Tue 27/1019:30
BOS
-
IST
1 stop25h 20m
Delta
Mon 9/1117:55
IST
-
BOS
2 stops33h 50m
Delta
Deal found 2/3£433
Mon 23/321:30
BOS
-
IST
1 stop23h 20m
Multiple Airlines
Mon 6/404:25
IST
-
BOS
1 stop22h 10m
Multiple Airlines
Deal found 1/3£441
Wed 28/1019:30
BOS
-
IST
1 stop25h 20m
KLM
Mon 9/1104:50
IST
-
BOS
1 stop19h 30m
KLM
Deal found 2/3£442
Mon 26/1019:30
BOS
-
IST
2 stops14h 25m
KLM
Mon 9/1104:50
IST
-
BOS
2 stops18h 32m
KLM
Deal found 2/3£444
Sun 3/517:45
BOS
-
IST
1 stop20h 50m
United Airlines
Tue 12/513:55
IST
-
BOS
2 stops28h 51m
United Airlines
Deal found 2/3£445
Tue 20/1022:00
BOS
-
IST
1 stop16h 15m
United Airlines
Thu 17/1206:30
IST
-
BOS
2 stops25h 24m
United Airlines
Deal found 2/3£447
Mon 6/413:00
BOS
-
IST
2 stops25h 25m
United Airlines
Thu 16/405:40
IST
-
BOS
2 stops35h 09m
United Airlines
Deal found 2/3£447

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 6 March 2026.

Round-trip from

£427

One-way from

£248

Popular in

June

Cheapest in

November

Average price

£569

Good round-trip deal

£669 or less

Good one-way deal

£378 or less
KLM
  • KLM
  • 5/4-19/4
  • 2 total stops
  • 36h 35m total
  • Boston to Istanbul
Search Deals
1/5
  • 1/5
  • 3 total stops
  • 37h 35m total
  • Boston to Istanbul
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£104 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Istanbul.
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Price to beat on a one-way flight from Boston Logan Intl to Istanbul.
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Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 6 March 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

Cheapest return flight

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Mon 4/5

15:32-21:25

2 stops22h 53m

Istanbul

Mon 11/5

13:55-15:40

1 stop32h 45m

£458

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 5/5

19:00-03:30

1 stop25h 30m

Istanbul

Wed 13/5

06:00-16:25

1 stop17h 25m

£462

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Mon 6/4

19:05-03:30

1 stop25h 25m

Istanbul

Mon 20/4

04:25-20:15

2 stops22h 50m

£508

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 24/3

19:30-03:50

1 stop25h 20m

Istanbul

Wed 1/4

04:25-13:33

1 stop16h 08m

£510
Fastest return journey

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 21/4

16:35-16:20

1 stop16h 45m

Istanbul

Thu 7/5

06:00-13:16

1 stop14h 16m

£519

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Tue 24/3

19:30-16:55

2 stops14h 25m

Istanbul

Tue 31/3

17:20-16:25

1 stop30h 05m

£557

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Thu 30/4

12:30-16:20

2 stops20h 50m

Istanbul

Mon 4/5

17:20-13:10

1 stop26h 50m

£580

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Wed 1/4

16:35-01:20

1 stop25h 45m

Istanbul

Mon 6/4

04:25-20:14

2 stops22h 49m

£611

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Wed 13/5

20:25-01:20

1 stop21h 55m

Istanbul

Tue 16/6

04:25-13:37

1 stop16h 12m

£619

BostonIstanbul

BOS - IST

BOSIST

Boston Logan Intl

Wed 13/5

20:25-01:20

1 stop21h 55m

Istanbul

Tue 16/6

04:25-13:05

2 stops15h 40m

£639

Flights are sorted by cheapest return flights first.

Deals found on 2/3

Showing 1-10 of 22 resultsSorted by cheapest first
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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 return 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 return flight from Boston to Istanbul. Price data was last updated on 27 February 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 £280). Flying from Boston to Istanbul Airport in May is currently the most expensive (average of £545). 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 6 March 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.

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?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Istanbul from Boston. Booking flights from Logan Intl (BOS) to Istanbul should be relatively easy as there are 2 daily outbound flights to Istanbul from 0 different airlines.

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

    Airlines like Delta, Lufthansa, and KLM fly from Boston to Istanbul Airport in about 18h 10m. The time it takes to get you to your destination can typically vary by up to 7h 20m. Airlines will cover a distance of 4797 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Before booking your flight to Istanbul Airport from Boston, check out the most reliable airlines to get you to your destination on time: Thai Airways (45%), JetBlue (45%), Turkish Airlines( 45%).

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

    The cheapest flight price from Boston to Istanbul Airport is £254. On average you can expect to pay £668. The most popular route, (Boston Logan Intl - Istanbul), can usually be booked for £452.

  • 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 holiday 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 £280). Flying from Boston to Istanbul Airport in May is currently the most expensive (average of £545). 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

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Can Cheapflights find flights from Boston to Istanbul with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Istanbul, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Boston to Istanbul become cheaper?

Not ready to book yet? You can track prices for flights from Boston to Istanbul on Cheapflights with our Price Alert feature and get notified when better prices are available.

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