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SOF - BOS

Find cheap flights from Sofia to Boston from $363

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 Boston departing on 5/14. 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
0 bags
Thu 5/23
Thu 5/30

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Boston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Boston.
In the last 7 days travelers have searched 44,632,927 times on KAYAK, and here is why:

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Cheap flight deals from Sofia to Boston (SOF-BOS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to Boston 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 and deals for you by selecting your travel dates.
Choose your dates
6:30 am - 2:38 pmSOF-BOS
15h 08m2 stops
3:30 pm - 1:20 pmBOS-SOF
14h 50m2 stops
$572Air Canada
Find Deal
Tue, Jun 25 - Tue, Sep 24
10:55 am - 3:20 pmSOF-BOS
11h 25m1 stop
8:05 pm - 6:45 pmBOS-SOF
15h 40m1 stop
Tue, Jun 25 - Tue, Sep 24
12:55 pm - 6:25 pmSOF-BOS
12h 30m1 stop
9:40 am - 11:00 pmBOS-SOF
30h 20m2 stops
$585United Airlines
Find Deal
Thu, May 16 - Tue, Oct 1
6:00 am - 5:50 pmSOF-BOS
18h 50m1 stop
9:30 am - 1:20 pmBOS-SOF
20h 50m2 stops
$587United Airlines
Find Deal
Tue, Jun 25 - Tue, Sep 24
12:55 pm - 5:50 pmSOF-BOS
11h 55m1 stop
8:05 pm - 6:45 pmBOS-SOF
15h 40m1 stop
$626Lufthansa
Find Deal
Fri, Jun 7 - Sun, Sep 22
9:10 pm - 7:55 pmSOF-BOS
29h 45m1 stop
9:50 pm - 2:55 pmBOS-SOF
34h 05m1 stop
$643Turkish Airlines
Find Deal
Tue, Jun 11 - Wed, Jun 19
6:00 am - 8:15 pmSOF-BOS
21h 15m2 stops
8:05 pm - 11:00 pmBOS-SOF
19h 55m1 stop
$646Lufthansa
Find Deal
Fri, Jun 7 - Sun, Sep 22
2:30 pm - 10:40 pmSOF-BOS
15h 10m1 stop
9:50 pm - 8:05 pmBOS-SOF
15h 15m1 stop
$652British Airways
Find Deal
Fri, Jun 14 - Sat, Jun 29
9:15 pm - 1:48 pmSOF-BOS
23h 33m2 stops
7:10 pm - 8:30 pmBOS-SOF
18h 20m1 stop
$662British Airways
Find Deal
Tue, Jun 11 - Wed, Jun 19
9:10 pm - 8:02 pmSOF-BOS
29h 52m2 stops
9:50 pm - 8:30 amBOS-SOF
27h 40m1 stop
$725Turkish Airlines
Find Deal
Tue, Jul 23 - Tue, Aug 6

Flights from Sofia to Boston - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Sofia to Boston?

The average price of all flights from Sofia to Boston clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Boston on a Thursday and more expensive on a Tuesday. On your return trip to Sofia, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Sofia to Boston, 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 Boston is March, where tickets cost $527 on average. On the other hand, the most expensive months are January and June, where the average cost of tickets is $841 and $718 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Sofia to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Sofia to Boston, you should book around 5 days before departure. For the absolute cheapest price, our data suggests you should book 35 days before departure.

Which airlines provide the cheapest flights from Sofia to Boston?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Sofia to Boston were found on Air Canada ($572) and United Airlines ($585). Air Serbia proposed the cheapest one-way flight at $537.

Good to know

Low season

February

High season

June

Cheapest flight

$363
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Sofia to Boston

When to book flights from Sofia to Boston

Are your dates flexible? Find out the best times to travel from Sofia to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sofia to Boston

  • What is the cheapest flight from Sofia to Boston?

    In the last 3 days, the lowest price for a flight from Sofia to Boston was $363 for a one-way ticket and $572 for a round-trip.

  • Do I need a passport to fly between Sofia and Boston?

    A passport is required to fly from Sofia to Boston.

  • Which aircraft models fly most regularly from Sofia to Boston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sofia to Boston?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Sofia and Boston, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sofia to Boston, SWISS or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sofia to Boston are SWISS and United Airlines. With an average price for the route of $888 and an overall rating of 7.8, SWISS is the most popular choice. United Airlines is also a great choice for the route, with an average price of $750 and an overall rating of 7.4.

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

    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 Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Sofia 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 Boston?

    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 to Boston with an airline and back to Sofia with another airline. Booking your flights between Sofia and BOS can sometimes prove cheaper using this method.

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

    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 to Boston from Sofia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Sofia to Boston

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Boston. 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 Boston? 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.
7.4
Turkish AirlinesOverall score based on 3693 reviews
7.4boarding
7.4food
7.4comfort
7.8crew
7.5entertainment
Airline reviews

Movie selection was ok, but could be better. Would like to see greater selection of newer movies.

8.0 ExcellentAnonymous, Apr 2024IST - IAD
Read more about Turkish Airlines reviews

Movie selection was ok, but could be better. Would like to see greater selection of newer movies.

Loved the check-in experience. Very friendly staff and not crowded. I did wind up with a middle-middle seat, which was quite uncomfortable. Always appreciate the very professional staff on TAL.

Paying for reserved seats and never received the seats I paid for !! Just fake and a surprise out of their " box "

Turkish airline always good Only Turkish representatives at the gave need to be more helpfull to any staff who traveling on Turkish airline . One situation happened Ist to jfk on Feb 29 TK3 had seats I asked them to transfer me to tk3 because Feb 29 tk1 was oversold and they advise me that I might not make it for tk1 I asked them to transfer me to tk3 and they say no they can’t do it I been telling them you know that I don’t have a chance for tk 1 why would you let plane go with some empty seats on tk3 if you can transfer me to tk3 and have less staff on tk1 and still told me no I waited for tk1 9 hours and only last minute I got seat on tk1 It was not easy situation but I am glad I made it home Thank you Turkish Airline One more suggestion for Turkish Airline you need to make a FIRST CLASS cabin it would be so cool 🆒 Good luck all the best See you more

First class payment but wife’s seat broken, would recline but not lay flat. On previous flight, delays and ground crew malfunctions connecting jetway made us miss flight to Houston. I asked twice for a cart to assist us getting across the massive Istanbul Airport, but was denied. We are both over 70.

My flight had two legs. When checking in at the first leg the agent offering for a deal to upgrade the leg to first class for $199. He then claimed I would be able to upgrade the second leg once I got to the next airport. I declined and when I inquired about upgrading at the second airport, the cost was $1,300. I also had an issue at the airport lounge. I am allowed one guest in the lounge. My friend came in the lounge for less than 5 minutes and left when she couldn’t get a sleeping suite. I wanted to bring in another friend. The airport staff first started acting as though they didn’t understand English and then became upset when I asked for their names so I could file a complaint. As an elite member I knew they could do more but were not. One of the agents started over talking me and walked away mid conversation dismissing my request for assistance. A man claiming to be the manager said you were asking for her name. He also never tried to assist me or see what was going on. He claimed the interactions were recorded and management would see everything. I’m not sure how that would assist me days later. I am sure it didn’t help that I was a black American woman.

Better attitude training for staff at airport, better training for flight attendants, better food, don’t put us with all the crying babies that cried nonstop for 12 plus hours.

Crew announced boarding started and they asked passengers to form a queue. Actual boarding didn’t start and queue was not moving for around 40-50 mins. Very poor management.

It was a terrible airline. The air hostess and the people in the flight, just very rude.

Crew on this flight was terrible. Especially one practicular female , she was harassing us and other families with children. Flight was good overall, if not her being rude and aggressive

Terrible. 2 hour delay. Sat on the tarmac. Missed my connecting flight. Had to ARGUE with Customer service to get a hotel and food. Terrible experience with my loyal carrier

Our seat tv didn’t work All the rest was perfect

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I liked the exit row seat. Hated the distance between gates in Houston.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

During the flight there was a medical emergency. We were diverted. Of course I'm thankful they cared for the health of that passenger, but they did a poor job of communicating with the rest of us passengers. In the end we arrived at our destination several hours late, with no direction of how to rebook missed connecting flights. It all worked out in the end. Those of us that needed accommodations were put up in a hotel by Lufthansa until we could make it to our final destination. But it was United Airlines Personnel who really helped us navigate the process.

Always a pleasure to deal with United's helpful and knowledgeable staff

Always a pleasure to deal with United's helpful and knowledgeable saff

This flight is always a cramped bus. The gate area was inadequate and announcements were hard to hear. The flight was delayed 45 minutes to an hour by a broken aircraft door, making our total delay from Vilnius 5 hours.

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

Ok, but no entertainment. Left late, but made up most of the time.

May be it is not an ITA issue, but the bags took long time to go out.

Good. But there food was poor quality and 95% of movies didn't have English subtitles

I thought they had rebranded themselves in every aspect but it was quite the opposite. The food was terrible the service was sub-par. Overall it was not a good experience.

Service from staff was poor, food choices were limited. Air plane was not clean or hygienic and seemed like not cleaned for days. Seats were uncomfortable.

service from stAff was barely there , food choices were limited. AirPlane was not clean and seemed like it was not cleaned for days.. Seats were very uncomfortable.

I paid for premium seats and the last minute they changed the aircraft for a bigger one, they bumped me to another seat which was NOT at all comfortable for an 11 hour flight, will fight for a refund!!

The landing was catastrophic. I was very scared. I thought it were my last lminues. Pilotes should be more experienced

ALL services were good. An announcement should’ve been made at the end of the flight that filling out a customs form would not be necessary anymore for USA travelers entering Philadelphia.

The flight was smooth, the premier economy seats were comfortable, the flight crew were excellent. The on board food, however, was AWFUL. I suggest bringing your own food on board.

Book cheap flights from Sofia to Boston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Sofia to Boston found on KAYAK in the last 72 hours.
5/14Tue
3 stops
32h 55mSOF-BOS
$363
5/1Wed
3 stops
51h 05mSOF-BOS
$400
5/1Wed
2 stops
36h 40mSOF-BOS
$435
4/29Mon
3 stops
53h 00mSOF-BOS
$465
5/14Tue
2 stops
18h 45mSOF-BOS
$493
5/1Wed
1 stop
13h 55mSOF-BOS
$495
5/20Mon
2 stopsAir Serbia
18h 49mSOF-BOS
$537
5/20Mon
1 stopQatar Airways
32h 15mSOF-BOS
$577
5/14Tue
1 stopTurkish Airlines
17h 35mSOF-BOS
$618
4/29Mon
1 stopLufthansa
12h 30mSOF-BOS
$629

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Last minute flights from Sofia to Boston

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Sofia to Boston that are departing in the next 10 days.
4/24Wed
multi-stop
18h 36mSOF-BOS
5/28Tue
multi-stop
17h 35mBOS-SOF
$623
4/25Thu
multi-stopBritish Airways
26h 35mSOF-BOS
5/27Mon
multi-stopBritish Airways
18h 15mBOS-SOF
$625
4/24Wed
multi-stop
18h 36mSOF-BOS
5/26Sun
multi-stop
16h 45mBOS-SOF
$631
4/24Wed
multi-stopUnited Airlines
35h 38mSOF-BOS
5/29Wed
multi-stopUnited Airlines
15h 05mBOS-SOF
$649
4/25Thu
multi-stopITA Airways
26h 40mSOF-BOS
5/29Wed
multi-stopITA Airways
17h 05mBOS-SOF
$654
4/24Wed
multi-stopLufthansa
29h 55mSOF-BOS
5/28Tue
multi-stopLufthansa
19h 20mBOS-SOF
$711
4/24Wed
multi-stopUnited Airlines
24h 38mSOF-BOS
5/30Thu
multi-stopUnited Airlines
19h 20mBOS-SOF
$712
4/25Thu
multi-stopAir Canada
18h 36mSOF-BOS
5/25Sat
multi-stopAir Canada
16h 45mBOS-SOF
$749
4/25Thu
multi-stopAir Canada
20h 43mSOF-BOS
5/31Fri
multi-stopAir Canada
17h 35mBOS-SOF
$799
4/24Wed
multi-stopLufthansa
12h 30mSOF-BOS
5/29Wed
multi-stopLufthansa
13h 05mBOS-SOF
$874

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Sofia - Boston Flights

Departure:

Sofia (SOF)Bulgaria

Destination:

Boston (BOS)United States

Return flight deals:

Boston - Sofia

Cabin classes:

Browse origins: