Cheap Flights from Boston (BOS) to Istanbul (IST)

Find the cheapest month to fly from Boston (BOS) to Istanbul (IST)

February is typically the cheapest month to fly

From US$433 - US$1,051 per traveler.

Graph displaying average flight prices per month

Flights from Boston (BOS) to Istanbul (IST)
Origin airport
Logan Intl.
Destination airport
Istanbul
Distance
4801 mi
Average flight time
8 hours 20 mins

Boston to Istanbul Flights

The cheapest times to fly from Boston to Istanbul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Istanbul are during the month of . You can find some of the cheapest flights from Boston to Istanbul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Istanbul

Sunday is one of the best days to book for cheap flights from Boston to Istanbul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Istanbul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Istanbul in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Istanbul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Istanbul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Istanbul (IST) cost?
You can book cheap return fares starting at $766 from Logan Intl. Airport (BOS) to Istanbul (IST). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Turkish Airlines flight leaving BOS on July 29 2025 and touching down at IST. The price was last updated on July 11 2025 and has not changed since.
What is the cheapest month to fly from BOS to IST?
The cheapest flights from BOS to IST are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BOS to IST?
With prices as low as $473 for a one-way flight from BOS to IST, Turkish Airlines is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOS on October 6 2025. Prices were last updated on July 11 2025 and have not changed since.
How many flights per day from Logan Intl. Airport (BOS) to Istanbul (IST)?
There are no daily nonstop flights from Logan Intl. Airport (BOS) to Istanbul (IST). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from BOS to IST?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from BOS to IST?
Turkish Airlines has the strongest track record for on-time direct flights from Logan Intl. Airport (BOS) to Istanbul (IST), with an on-time score of 100%. Use the Expedia App to check your flight status before you jet off and get notified of any trip changes.
What is the best time to fly from Logan Intl. Airport (BOS) to Istanbul (IST)?
To reach Istanbul (IST) without delays, select a flight that leaves from Logan Intl. Airport (BOS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Istanbul (IST) last-minute?
Booking your ticket from BOS to IST just before your getaway is typically more expensive. However, if you're flexible with your departure times and dates, you could score a cheap last-minute fare.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Istanbul (IST)?
It's generally possible to reschedule or cancel your BOS to IST flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.