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Cheap flights from Boston to Bulgaria from $248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Bulgaria departing on 2/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
1:31 pm - 11:50 am
BOS
-
SOF
15h 19m2 stops
Austrian Airlines Logo
12:35 pm - 2:05 pm
SOF
-
BOS
32h 30m1 stop
$350Austrian Airlines
Tue, Feb 10 - Mon, Feb 23
Multiple Airlines Logo
9:50 pm - 3:15 pm
BOS
-
SOF
10h 25m1 stop
Multiple Airlines Logo
7:55 am - 5:14 pm
SOF
-
BOS
16h 19m2 stops
$351Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Lufthansa Logo
8:40 pm - 6:20 pm
BOS
-
SOF
14h 40m1 stop
Lufthansa Logo
2:00 pm - 6:35 pm
SOF
-
BOS
11h 35m1 stop
$353Lufthansa
Wed, Jan 28 - Wed, Feb 4
Lufthansa Logo
8:40 pm - 6:20 pm
BOS
-
SOF
14h 40m1 stop
Lufthansa Logo
2:00 pm - 6:35 pm
SOF
-
BOS
11h 35m1 stop
$362Lufthansa
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
8:40 pm - 6:20 pm
BOS
-
SOF
14h 40m1 stop
Multiple Airlines Logo
2:00 pm - 9:32 am
SOF
-
BOS
25h 32m2 stops
$371Multiple Airlines
Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
10:15 am - 3:15 pm
BOS
-
SOF
22h 00m2 stops
Multiple Airlines Logo
2:00 pm - 9:32 am
SOF
-
BOS
26h 32m2 stops
$376Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
3:35 pm - 1:15 pm
BOS
-
SOF
14h 40m2 stops
Multiple Airlines Logo
6:10 am - 9:27 pm
SOF
-
BOS
21h 17m2 stops
$380Multiple Airlines
Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
1:55 pm - 3:15 pm
BOS
-
VAR
18h 20m2 stops
Multiple Airlines Logo
4:00 pm - 9:32 am
VAR
-
BOS
47h 32m2 stops
$385Multiple Airlines
Wed, Feb 25 - Wed, Mar 11
Turkish Airlines Logo
8:00 pm - 9:10 am
BOS
-
VAR
30h 10m1 stop
Turkish Airlines Logo
10:00 am - 7:05 pm
VAR
-
BOS
15h 05m1 stop
$525Turkish Airlines
Wed, Feb 25 - Wed, Mar 11
Turkish Airlines Logo
8:00 pm - 8:35 pm
BOS
-
VAR
17h 35m1 stop
Turkish Airlines Logo
10:00 am - 7:05 pm
VAR
-
BOS
15h 05m1 stop
$550Turkish Airlines
Wed, Feb 25 - Wed, Mar 11

Austrian Airlines flights from Boston to Bulgaria

Our best Austrian Airlines deals on Boston to Bulgaria flight tickets
Austrian Airlines
Feb 10
BOS1:31 pmBoston Logan Intl
15h 19m
2 stops
SOF11:50 amSofia
Feb 23
SOF12:35 pmSofia
32h 30m
1 stop
BOS2:05 pmBoston Logan Intl
$350
Find similar
Austrian Airlines
Jan 19
BOS1:30 pmBoston Logan Intl
21h 30m
2 stops
SOF6:00 pmSofia
Feb 4
SOF7:55 amSofia
16h 19m
2 stops
BOS5:14 pmBoston Logan Intl
$407
Find similar
Austrian Airlines
Feb 25
BOS1:55 pmBoston Logan Intl
18h 20m
2 stops
VAR3:15 pmVarna
Mar 11
VAR4:00 pmVarna
32h 41m
2 stops
BOS6:41 pmBoston Logan Intl
$409
Find similar

Lufthansa flights from Boston to Bulgaria

Our best Lufthansa deals on Boston to Bulgaria flight tickets
Lufthansa
Jan 28
BOS8:40 pmBoston Logan Intl
14h 40m
1 stop
SOF6:20 pmSofia
Feb 4
SOF2:00 pmSofia
11h 35m
1 stop
BOS6:35 pmBoston Logan Intl
$353
Find similar
Lufthansa
Jan 19
BOS8:40 pmBoston Logan Intl
19h 05m
1 stop
SOF10:45 pmSofia
Feb 4
SOF2:00 pmSofia
11h 35m
1 stop
BOS6:35 pmBoston Logan Intl
$395
Find similar
Lufthansa
Jan 28
BOS2:20 pmBoston Logan Intl
21h 00m
2 stops
SOF6:20 pmSofia
Feb 11
SOF2:00 pmSofia
11h 35m
1 stop
BOS6:35 pmBoston Logan Intl
$396
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Bulgaria 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Boston to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/10

1:31 pm-11:50 am

2 stops15h 19m

Sofia

Mon 2/23

12:35 pm-2:05 pm

1 stop32h 30m

$350

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 1/28

9:50 pm-3:15 pm

1 stop10h 25m

Sofia

Wed 2/4

7:55 am-5:14 pm

2 stops16h 19m

$351

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 1/28

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Wed 2/4

2:00 pm-6:35 pm

1 stop11h 35m

$353

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 1/28

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Wed 2/4

2:00 pm-6:35 pm

1 stop11h 35m

$362

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 3/4

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Wed 3/18

2:00 pm-9:32 am

2 stops25h 32m

$371

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 1/28

10:15 am-3:15 pm

2 stops22h 00m

Sofia

Wed 2/4

2:00 pm-9:32 am

2 stops26h 32m

$376

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 3/4

3:35 pm-1:15 pm

2 stops14h 40m

Sofia

Wed 3/18

6:10 am-9:27 pm

2 stops21h 17m

$380

BostonVarna

BOS - VAR

BOSVAR

Boston Logan Intl

Wed 2/25

1:55 pm-3:15 pm

2 stops18h 20m

Varna

Wed 3/11

4:00 pm-9:32 am

2 stops47h 32m

$385

BostonVarna

BOS - VAR

BOSVAR

Boston Logan Intl

Wed 2/25

8:00 pm-9:10 am

1 stop30h 10m

Varna

Wed 3/11

10:00 am-7:05 pm

1 stop15h 05m

$525

BostonVarna

BOS - VAR

BOSVAR

Boston Logan Intl

Wed 2/25

8:00 pm-8:35 pm

1 stop17h 35m

Varna

Wed 3/11

10:00 am-7:05 pm

1 stop15h 05m

$550

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bulgaria from

How to get the cheapest flight ticket from Boston to Bulgaria

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Bulgaria?

If you aren’t able to travel to Bulgaria during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $532.

What is the cheapest day to depart on your flight to Bulgaria?

The cheapest day to depart from Boston to Bulgaria is on a Tuesday when prices can be found for as low as $843. On the other hand, Friday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $997.

What is the cheapest time of day to depart on your flight to Bulgaria?

In the evening is the cheapest time of day to fly from Boston to Bulgaria when you can find flight prices for as low as $816. Flying to Bulgaria in the evening is an ideal time because this is during off-peak travel hours. Flights to Bulgaria are more costly in the morning, with an average ticket price of $1,022. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $706 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Boston for as low as $600 on momondo.

Can stopping save me money on Boston to Bulgaria flights?

You could potentially save up to 59% on your flight if you consider stops on a Boston to Bulgaria flight.

Cheap Boston to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Bulgaria

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from Boston to Bulgaria takes 10h 25m
There are no direct flights from Boston to Bulgaria. There are no popular flight routes from Boston to Bulgaria.
Search flight deals

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Bulgaria?

    Prices for flights from Boston Logan Intl Airport to Bulgaria refresh daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Bulgaria?

  • How old do you have to be to fly from Boston Logan Intl Airport to Bulgaria?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The travel and health documents required for your trip to Bulgaria can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bulgaria. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Boston to Bulgaria

Compare and see reviews for airlines that fly from Boston to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
Austrian AirlinesPriceFrom $356Free CancellationRating
7.6
879 reviews
Search Austrian Airlines flights
KLMPriceFrom $379Free CancellationRating
7.7
1,428 reviews
Search KLM flights
Air FrancePriceFrom $416Free CancellationRating
7.4
1,507 reviews
Search Air France flights
SWISSPriceFrom $417Free CancellationRating
7.5
1,815 reviews
Search SWISS flights
United AirlinesPriceFrom $439Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
LufthansaPriceFrom $449Free CancellationRating
6.8
7,634 reviews
Search Lufthansa flights
British AirwaysPriceFrom $482Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
ITA AirwaysPriceFrom $505Free CancellationRating
6.7
1,107 reviews
Search ITA Airways flights
Turkish AirlinesPriceFrom $535Free CancellationRating
7.3
4,105 reviews
Search Turkish Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Bulgaria?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Bulgaria. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to Bulgaria with flexible booking policies on momondo?

Yes. All flights to Bulgaria from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Boston to Bulgaria?

momondo helps you find the best flight between Boston and Bulgaria by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Bulgaria right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bulgaria, momondo offers a useful price alert feature which will track prices for flights to Bulgaria from Boston and alert you when they change.

An easier way to manage your Bulgaria trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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