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$509 Cheap Flights from Sofia (SOF) to Boston (BOS)

View $509 flight on Wed, May 12, 2027Opens in a new window

Popular airlines from Sofia Airport (SOF) to Logan International Airport (BOS)

Cheap Flights from Sofia to Boston (SOF-BOS)

Prices were available within the past 7 days and start at $509 for one-way flights and $767 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Sun, Nov 8 - Sat, Feb 6
SOF
Sofia
BOS
Boston
$767 Roundtrip, found 19 hours ago
$767
Roundtrip
found 19 hours ago
Select Turkish Airlines flight, departing Sun, Nov 8 from Sofia to Boston, returning Sat, Feb 6, priced at $767 found 19 hours ago
Turkish Airlines
Sat, Jan 30 - Sat, Feb 27
SOF
Sofia
BOS
Boston
$767 Roundtrip, found 4 days ago
$767
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Sat, Jan 30 from Sofia to Boston, returning Sat, Feb 27, priced at $767 found 4 days ago
British Airways
Wed, Nov 11 - Sun, Nov 22
SOF
Sofia
BOS
Boston
$785 Roundtrip, found 21 hours ago
$785
Roundtrip
found 21 hours ago
Select British Airways flight, departing Wed, Nov 11 from Sofia to Boston, returning Sun, Nov 22, priced at $785 found 21 hours ago
British Airways
Wed, Nov 11 - Sun, Nov 22
SOF
Sofia
BOS
Boston
$789 Roundtrip, found 21 hours ago
$789
Roundtrip
found 21 hours ago
Select British Airways flight, departing Wed, Nov 11 from Sofia to Boston, returning Sun, Nov 22, priced at $789 found 21 hours ago
Turkish Airlines
Tue, Nov 10 - Tue, Apr 20
SOF
Sofia
BOS
Boston
$793 Roundtrip, found 12 hours ago
$793
Roundtrip
found 12 hours ago
Select Turkish Airlines flight, departing Tue, Nov 10 from Sofia to Boston, returning Tue, Apr 20, priced at $793 found 12 hours ago
Turkish Airlines
Sat, Jan 30 - Sat, Feb 27
SOF
Sofia
BOS
Boston
$793 Roundtrip, found 4 days ago
$793
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Sat, Jan 30 from Sofia to Boston, returning Sat, Feb 27, priced at $793 found 4 days ago
British Airways
Wed, Nov 11 - Sun, Nov 22
SOF
Sofia
BOS
Boston
$795 Roundtrip, found 21 hours ago
$795
Roundtrip
found 21 hours ago
Select British Airways flight, departing Wed, Nov 11 from Sofia to Boston, returning Sun, Nov 22, priced at $795 found 21 hours ago
Lufthansa
Fri, Oct 30 - Fri, Nov 6
SOF
Sofia
BOS
Boston
$807 Roundtrip, found 2 hours ago
$807
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Fri, Oct 30 from Sofia to Boston, returning Fri, Nov 6, priced at $807 found 2 hours ago
United
Tue, Jul 6 - Thu, Aug 5
SOF
Sofia
BOS
Boston
$811 Roundtrip, found 3 days ago
$811
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jul 6 from Sofia to Boston, returning Thu, Aug 5, priced at $811 found 3 days ago
Swiss International Air Lines
Thu, Oct 8 - Wed, Jan 13
SOF
Sofia
BOS
Boston
$812 Roundtrip, found 1 day ago
$812
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Thu, Oct 8 from Sofia to Boston, returning Wed, Jan 13, priced at $812 found 1 day ago

What you need to know for your flight from Sofia to Logan Intl.

Sofia (SOF) to Boston (BOS) at a glance

Embark on your journey from Sofia (SOF) to Boston (BOS) with a selection of airlines offering this long-haul international route. Explore various options from full-service carriers to discover the flight that aligns with your budget, schedule, and travel preferences as you delve into Boston's iconic attractions and neighborhoods. Here, you'll find essential details for flights departing from Sofia Airport (SOF) to Logan International Airport (BOS).

  • Fastest flight duration: around 11 hours in-flight, plus roughly 2h 15m layover with one stop
  • Route distance: roughly 4,500 miles (7,240 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $305–$1295, depending on seasonality and how far ahead you book

Flights from Sofia Airport (SOF) to Logan International Airport (BOS)

Based on the latest traveler bookings, here are the top airlines favored for flights from Sofia to Boston, particularly for one-stop and multi-stop journeys. Common layover points include Franz Josef Strauss International Airport (MUC) with a layover of approximately 1 hour and 30 minutes, Frankfurt International Airport (FRA) at around 2 hours and 15 minutes, and Vienna International Airport (VIE) with a 2-hour layover. This allows you to combine different factors like price, total travel time, and cabin class to create the ideal itinerary.

  • Lufthansa: As a comprehensive airline, Lufthansa provides one-stop service, with one-way ticket prices generally falling between $305 and $830. This airline represents about 42% of the departures on this route, featuring an in-flight duration of 11 hours and a total travel time of approximately 13 hours and 15 minutes, including layover time.
  • United: Another full-service option, United offers one-stop flights with one-way fares that typically range from $305 to $1505. This carrier accounts for around 14% of the departures for this route, and travelers can expect an in-flight time of 11 hours, with an overall journey duration of about 13 hours and 15 minutes, taking layovers into account.
  • Delta: Delta functions as a full-service airline, providing one-stop flights with one-way fares usually between $405 and $1605. It makes up about 14% of departures along this route, offering an in-flight experience of 11 hours and a total travel time of around 13 hours and 15 minutes, including layovers.
  • Austrian Airlines: This full-service carrier offers one-stop service with one-way fares typically ranging from $305 to $740. Austrian Airlines accounts for roughly 8% of the departures for this route, featuring an in-flight duration of 11 hours and a total travel time of about 13 hours and 15 minutes, factoring in layover times.
  • Turkish Airlines: Offering one-stop service, Turkish Airlines is a full-service option with one-way fares generally ranging from $320 to $3180. It constitutes around 6% of departures on this route, with an in-flight time of 11 hours and a total journey duration of about 13 hours and 15 minutes, including layovers.

Best time to fly from Sofia (SOF) to Boston (BOS)

The most popular months for travelers flying from Sofia to Boston are January, April, and August, when peak temperatures in Boston reach up to 72.7°F in August. If you prefer quieter travel, consider September, the least busy time to visit with temperatures around 65.7°F and typically the lowest average one-way fare (around $438). Flight availability peaks in May, with approximately 13 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: September usually offers good deals with average one-way fare around $438, roughly 30% cheaper than the yearly average.
  • Another budget-friendly time to fly: February typically offers an average one-way fare of around $479.
  • Most flight options: May has the highest number of flights from Sofia to Boston, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January30.0°F (-1.1°C)High10$971
February31.5°F (-0.3°C)Low9$479
March37.9°F (3.3°C)Average7$1041
April48.2°F (9.0°C)High7$580
May58.5°F (14.7°C)Average13$545
June66.6°F (19.2°C)Average10$561
July73.6°F (23.1°C)Average9$503
August72.7°F (22.6°C)High8$569
September65.7°F (18.7°C)Low7$438
October55.6°F (13.1°C)Low8$724
November44.4°F (6.9°C)Average8$602
December36.3°F (2.4°C)Average10$602

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to find the best prices for flights from Sofia (SOF) to Boston (BOS)

Getting some of the best deals on flights from Sofia to Boston is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, coinciding with when most travelers make their reservations. Morning departures from 5 am to 12 pm often offer lower prices, while afternoon flights from 12 pm to 6 pm are more popular. Additionally, flying on Tuesday tends to be cheaper, although Wednesday is the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Logan International Airport from Sofia Airport

Boston welcomes travelers from Sofia with a range of transport options based on price, convenience, and proximity. Here's how to reach Boston efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Boston, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Logan International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Logan International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Logan International Airport, several transportation options are conveniently accessible by car. Airport Station, a metro station, is located about 0.9 miles from the airport, while Chelsea Station, a train station, is about 2.8 miles away. For those heading to the waterfront, Boston Seaport, a seaport, is approximately 3.1 miles from the airport.

Frequently asked questions

How much does a flight from Sofia (SOF) to Boston, MA (BOS-Logan Intl.) cost?
You can find cheap one-way flights from $509 and cheap return flights from $767 Sofia (SOF) to Boston, MA (BOS-Logan Intl.) with Expedia. One-way flights usually range from $765 to $3430, and return flights typically cost between $748 and $4008. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Sofia (SOF) to Boston, MA (BOS-Logan Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
The cheapest month to fly from SOF to BOS is November when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
Enter SOF to BOS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
JetBlue Airways is one of the cheapest airlines offering connecting flights from Sofia (SOF) to Boston, MA (BOS), with round-trip tickets starting from around $940. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
To find a cheap flight from Sofia (SOF) to Boston, MA (BOS-Logan Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
The earliest flight from Sofia (SOF) to Logan International Airport (BOS) usually departs at around 2:05 AM local time, operated by flydubai, Emirates, and Virgin Atlantic. This seasonal service is available in April, and an early departure can help you maximize your time in Boston. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
The most popular departure times for flights from Sofia (SOF) to Boston, MA (BOS) are in the early morning, from 6am to 9am. About 55% of passengers prefer this time window. Airlines like Lufthansa and United Airlines operate flights during this time. Many travelers choose this timing because it allows them to arrive in Boston with a full day ahead to enjoy.
How long does it take to fly from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
A flight from SOF to BOS with a layover takes around 13 hours 20 minutes, with the route covering approximately 4,524 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
Select the "Business class" and "First class" filters when looking for SOF to BOS flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Sofia (SOF) to Boston, MA (BOS-Logan Intl.) flight with Expedia?
It's easy to earn miles on a Sofia (SOF) to Boston, MA (BOS-Logan Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Boston from SOF (SOF)?
If you're planning to travel to Boston from SOF (SOF), you can fly into Logan Intl. (BOS) Some flights may connect through major hubs like Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC), Vienna Intl. (VIE) before reaching Boston. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sofia (SOF) to Boston, MA (BOS-Logan Intl.) at the last minute?
Typically, booking a last minute flight from Sofia (SOF) to Boston, MA (BOS-Logan Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sofia (SOF) to Boston, MA (BOS-Logan Intl.) flight and hotel package?
Securing a Sofia (SOF) to Boston, MA (BOS-Logan Intl.) Boston Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sofia (SOF) to Boston, MA (BOS-Logan Intl.)?
If you booked your Sofia (SOF) to Boston, MA (BOS-Logan Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sofia
Destination airport
Logan Intl.
Airlines serving
Air Canada, Air France, Air Serbia, Austrian Airlines, British Airways, Iberia, JetBlue Airways, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$766
Distance
4523 mi

Book with confidence

Sofia to Boston Flights

The cheapest times to fly from Sofia to Boston

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 Sofia to Boston are during the month of November. You can find some of the cheapest flights from Sofia to Boston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sofia to Boston

Sunday is one of the best days to book for cheap flights from Sofia to Boston: 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 Sofia to Boston

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 Sofia to Boston in 2026. You can also book with separate airlines for your outbound and return journeys, from $509 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 Sofia to Boston 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 Sofia to Boston 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.

 

Sofia to Boston Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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