$329 Find Cheap Flights from Sofia to Massachusetts

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Massachusetts departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Massachusetts

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Massachusetts.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Massachusetts.
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Flight Deals

Book Cheap Sofia to Massachusetts Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to Massachusetts that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sofia to Massachusetts

Tue, Jul 21 - Tue, Jul 28
Multiple Airlines Logo
6:45 pm - 7:55 pm
SOF
-
BOS
32h 10m
2 stops
Multiple Airlines Logo
5:10 pm - 9:15 pm
BOS
-
SOF
21h 05m
2 stops
$684Multiple Airlines
Wed, Sep 9 - Wed, Feb 3
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9:40 pm - 9:05 pm
SOF
-
BOS
30h 25m
1 stop
Multiple Airlines Logo
9:50 pm - 3:15 pm
BOS
-
SOF
10h 25m
1 stop
$692Multiple Airlines
Tue, Sep 22 - Tue, Oct 6
Lufthansa Logo
6:10 am - 8:10 pm
SOF
-
BOS
21h 00m
1 stop
Lufthansa Logo
8:05 pm - 11:15 pm
BOS
-
SOF
20h 10m
1 stop
$699Lufthansa
Sun, Nov 22 - Sun, Mar 21
Multiple Airlines Logo
2:30 pm - 9:50 pm
SOF
-
BOS
14h 20m
1 stop
Multiple Airlines Logo
8:15 pm - 4:20 pm
BOS
-
SOF
14h 05m
1 stop
$709Multiple Airlines
Sun, Nov 22 - Sun, Mar 21
Multiple Airlines Logo
2:30 pm - 10:46 pm
SOF
-
BOS
15h 16m
2 stops
Multiple Airlines Logo
8:15 pm - 4:20 pm
BOS
-
SOF
14h 05m
1 stop
$714Multiple Airlines
Tue, Sep 22 - Tue, Oct 6
United Airlines Logo
6:10 am - 3:40 pm
SOF
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BOS
16h 30m
1 stop
United Airlines Logo
12:36 pm - 12:10 pm
BOS
-
SOF
16h 34m
2 stops
$719United Airlines
Sun, Sep 13 - Mon, Sep 21
Multiple Airlines Logo
6:20 am - 3:40 pm
SOF
-
BOS
16h 20m
1 stop
Multiple Airlines Logo
5:10 pm - 12:15 pm
BOS
-
SOF
12h 05m
1 stop
$720Multiple Airlines
Sun, Sep 13 - Tue, Sep 22
United Airlines Logo
6:20 am - 3:40 pm
SOF
-
BOS
16h 20m
1 stop
United Airlines Logo
8:05 pm - 11:15 pm
BOS
-
SOF
20h 10m
1 stop
$721United Airlines
Mon, Sep 14 - Mon, Sep 21
Lufthansa Logo
6:20 am - 8:10 pm
SOF
-
BOS
20h 50m
1 stop
Lufthansa Logo
8:05 pm - 6:40 pm
BOS
-
SOF
15h 35m
1 stop
$722Lufthansa
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
6:20 am - 3:40 pm
SOF
-
BOS
16h 20m
1 stop
United Airlines Logo
2:28 pm - 1:05 pm
BOS
-
SOF
15h 37m
2 stops
$723United Airlines
Booking Insights

KAYAK's insights & trends for Sofia to Massachusetts flights

Get data-powered insights and trends into flights from Sofia to Massachusetts to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sofia to Massachusetts?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sofia to Massachusetts departing in July.

What is the cheapest month to fly from Sofia to Massachusetts?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to Massachusetts, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sofia to Massachusetts is January, when tickets cost $537 (return) on average. On the other hand, the most expensive months are February and April, when the average cost of round-trip tickets is $779 and $689 respectively.

How far in advance should I book a flight from Sofia to Massachusetts?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sofia to Massachusetts, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sofia to Massachusetts, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$329
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Sofia to Boston

FAQs - booking Massachusetts flights

  • How does KAYAK find such low prices on flights from Sofia to Massachusetts?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sofia to Massachusetts.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sofia to Massachusetts?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sofia to Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sofia to Massachusetts?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Sofia to Massachusetts with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sofia to Massachusetts?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sofia to Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Sofia to Massachusetts

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Massachusetts. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sofia to Massachusetts? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1531 reviews
8.4Crew
7.8Boarding
7.7Comfort
7.2Entertainment
7.3Food
Airline reviews

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

6.0 GoodGlenn, Feb 2026
AMS - JFK
Read more KLM reviews

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

Flight was delayed. Can happen. But the info on the website and app said that flight was cancelled which was not the case.

The whole trip was excellent. The only thing I would change is the temperature of the plane was a bit high which made it uncomfortable to sleep.

It was operated by Delta. Boarding took a long time. How difficult can it be? Overall decent trip. Liked the Salt Lake City airport. Better option than Chicago for transfers.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

The preboarding and the gate organizing management was poor, unorganized and mismanaged. While standing in the business line I kept getting ignored and the personnel kept checking in others, right in front of me until I finally spoke up and pointed out their clear signs of ignoring me while patiently waiting to be checked in. Once checked in the gate the personnel kept chit-chatting and not managing which group is to board, being totally nonchalant, unorganized and behaving amateur-like . Very unprofessional and unlike the quality the Austrian Airlines brand otherwise provides. The crew on the plane are always fantastic and the best. What a shame the crew on the ground was so mediocre.

Flight delayed with no explanation. Boarding was confused (proceed to plane, go back to waiting area).

Last few years I didn't not have great experience with United Airlines.

Short flight. Bare bones and kinda seeming like an older plane. But got me there on time and that's what counts. Perfectly fine flight all the way from start to finish.

My Austrian Air flight from Montenegro to Vienna was delayed by three hours because their plane de-icer was broken and they had to wait for the sun to come up before the ice could melt. This meant we missed our United flight altogether. So I can't speak about United, but I was not impressed by Austrian Air. They made us check in two carry on bags for a 60% full flight, and the bags didn't find us in the US for ten days. The re-routing they arranged included an extra leg, a midnight taxi ride across New Jersey and New York, and a five hour sleep in a hotel. Not impressed.

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

I really would like it if they provided at least some limited free wi-fi.

The crew was amazing and the food was really good too

Excellent service. Friendly and attentive flight attendants, can lay back in business class and be pretty comfortable, and delicious food. Flight on time departing and arriving.

I will say the same as my previous comment. Great job over all! From 1-10, ten be the best… I will give 9!

Very hot cabin made long flight uncomfortable, even in business class! Food was great. Istanbul business lounge had great food but too few bathrooms and seating . They also need more electric outlets for charging devices. Appreciate the ability to go through fast track lines w business class

The seats were extremely small. Boarding was not communicated correctly. It wasn’t a pleasant trip.

Loved the food. No wheelchair was provided in Sofia even though wheelchair assistance was confirmed by Turkish Airlines

Boarding experience was a mess- both to and from Istanbul airport. No one knew anything. They asked everyone to line up according to their sit numbers- it was unbelievable. Business class had a separate line, but it was hard to find- I had to go through all that mess before finding it. Would not recommend

The best airline for international travel in terms of value you get in business class (service/cost)

It was a good experience. With the long layover they provided the TourIstanbul option to have the free sightseeing bus tour - that was a great option to pass the time. Airport at Istanbul is very comfortable and convenient. Flight was comfortable.

I missed my flight and had to buy new tickets Rome- Boston

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Super friendly with lots of drink options an entertainment. Friendly crew.

Short flight, crew and staff very efficient. Over all good flight experience.

I like flying first class, and United has a nice one

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Inoperable monitor left no entertainment for 9 hours. The crew was not helpful. Food was awful.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

I was not aware that I have to pay for the checked bag on the return flight. It was included in the price when I bought the ticket

Original Lufthansa flights were canceled and the alternative route that was offered required cab transfer in New York from JFK to Newark at my own expense. Who can refund these $218?

flight was packed, had to check my carryon bag, tiny snack bag offered, but we arrived on time and thats what counts

Expect Business Class seating to be 2 passengers per 3 coach seats, with center blocked. This is typical for flights within Europe on most airlines. Service was excellent!

They gave us chocolates twice (for whoever would like an extra chocolate - kids did!). I asked for an extra water, and I was given one. Crew was very friendly!

My mother is 87 years old and has knee problems. I have reserved a wheelchair indicating that she is immobile. For her it is very difficult to walk short distances. On arrival in Frankfurt, I was called via my mother's phone, by the female employee who had my mother in a wheelchair. She asked me how many and what color suitcases she has, which I explained. I was very surprised when 15 minutes later my mother walked out with her cane and balancing with great difficulties assisted by a young couple who were pushing her suitcase. Where was the wheelchair and the airport employee? I find this to be a disrespectful and abusive behavior of elderly people. It also raises the question of professional misconduct of the airport personnel in Frankfurt i.e. the female employee who abandoned an 87 year old immobile person by the luggage lane. I would like to inquire about the details i.e. name of that employee.

Crew was nicer to some people than others for no apparent reason. I had to get an older lady’s attention because she was too busy talking to passengers.

The flight was wonderful, especially the special assistance from airplane to airplane!

All flights cancelled with no way to reach the airline

The passenger next to me Goran Goranov (elderly man in his 70s on his way to visit his children and grandchildren in Washington, DC) dropped his neck support pillow while boarding - none of the ground crew helped him. He subsequently lost his green card somewhere on the plane or on his way to the other airplane. I hope he found it. I am worried about him. His son had requested an agent to wait for him at the gate - nobody was there when Mr. Goranov came out of the plane Sofia- Frankfurt. Other passengers had to help him get to the next gate for Washington, DC. I hope Mr. Goranov found his Green card and got safely to Washington, DC to spend time with his family during the holiday season.

J ai resté plus 5heures dans l attente du vol et je n'ai pas pu être à l'aise et le retards d'avion ça me dérange et c'était très dur journée pour moi malheureusement

Everything you need to know for your flight from Sofia to Massachusetts

Information on your arrival and departure airports