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Cheap flights from the United States to Bulgaria from $164

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Bulgaria departing on 3/17. 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 the United States to Bulgaria

Recent round-trip flight deals from the United States to Bulgaria

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:20 pm - 1:15 pm
BOS
-
SOF
15h 55m2 stops
Multiple Airlines Logo
12:35 pm - 2:05 pm
SOF
-
BOS
32h 30m1 stop
$329Multiple Airlines
Mon, Feb 2 - Mon, Feb 16
Austrian Airlines Logo
7:25 pm - 11:50 am
BOS
-
SOF
10h 25m1 stop
Austrian Airlines Logo
12:25 pm - 7:06 pm
SOF
-
BOS
37h 41m2 stops
$330Austrian Airlines
Tue, Mar 17 - Mon, Apr 13
Lufthansa Logo
2:20 pm - 1:15 pm
BOS
-
SOF
15h 55m2 stops
Lufthansa Logo
2:00 pm - 6:35 pm
SOF
-
BOS
11h 35m1 stop
$337Lufthansa
Wed, Jan 21 - Wed, Feb 4
Lufthansa Logo
2:20 pm - 1:15 pm
BOS
-
SOF
15h 55m2 stops
Lufthansa Logo
6:00 am - 1:35 pm
SOF
-
BOS
14h 35m1 stop
$345Lufthansa
Tue, Jan 20 - Tue, Feb 3
United Airlines Logo
3:40 pm - 1:35 pm
JFK
-
SOF
14h 55m1 stop
United Airlines Logo
6:00 am - 1:50 pm
SOF
-
JFK
14h 50m1 stop
$477United Airlines
Fri, Jan 16 - Thu, Jan 22
United Airlines Logo
10:05 am - 11:00 pm
JFK
-
SOF
29h 55m2 stops
United Airlines Logo
6:20 am - 8:05 pm
SOF
-
JFK
20h 45m1 stop
$480United Airlines
Sun, Apr 12 - Sat, Apr 25
LOT Logo
10:35 pm - 1:50 pm
JFK
-
SOF
32h 15m1 stop
LOT Logo
2:35 pm - 9:35 pm
SOF
-
JFK
13h 00m1 stop
$482LOT
Sat, Feb 7 - Sun, Mar 15
LOT Logo
10:35 pm - 5:50 pm
JFK
-
SOF
12h 15m1 stop
LOT Logo
6:35 pm - 8:35 pm
SOF
-
JFK
33h 00m1 stop
$487LOT
Tue, Jan 20 - Sun, Jan 25
Turkish Airlines Logo
9:15 pm - 8:50 pm
IAD
-
SOF
16h 35m1 stop
Turkish Airlines Logo
9:35 am - 8:20 pm
SOF
-
IAD
16h 45m1 stop
$534Turkish Airlines
Sun, Mar 1 - Fri, Mar 13
Turkish Airlines Logo
9:15 pm - 8:50 pm
IAD
-
SOF
16h 35m1 stop
Turkish Airlines Logo
9:35 am - 8:20 pm
SOF
-
IAD
16h 45m1 stop
$535Turkish Airlines
Sun, Mar 1 - Fri, Mar 13

SWISS flights from United States to Bulgaria

Our best SWISS deals on United States to Bulgaria flight tickets
SWISS
Apr 28
EWR9:45 pmNewark
29h 35m
1 stop
SOF10:20 amSofia
May 12
SOF1:05 pmSofia
14h 10m
1 stop
EWR8:15 pmNewark
$362
Find similar
SWISS
Mar 31
BOS5:05 pmBoston Logan Intl
10h 15m
1 stop
SOF10:20 amSofia
Apr 14
SOF1:05 pmSofia
13h 50m
1 stop
BOS7:55 pmBoston Logan Intl
$377
Find similar
SWISS
Jan 18
EWR6:40 pmNewark
12h 35m
1 stop
SOF2:15 pmSofia
Jan 27
SOF2:00 pmSofia
37h 30m
2 stops
EWR8:30 pmNewark
$412
Find similar

Lufthansa flights from United States to Bulgaria

Our best Lufthansa deals on United States to Bulgaria flight tickets
Lufthansa
Jan 21
BOS2:20 pmBoston Logan Intl
15h 55m
2 stops
SOF1:15 pmSofia
Feb 4
SOF2:00 pmSofia
11h 35m
1 stop
BOS6:35 pmBoston Logan Intl
$337
Find similar
Lufthansa
Jan 20
BOS2:20 pmBoston Logan Intl
15h 55m
2 stops
SOF1:15 pmSofia
Feb 3
SOF6:00 amSofia
14h 35m
1 stop
BOS1:35 pmBoston Logan Intl
$345
Find similar
Lufthansa
Feb 18
BOS8:40 pmBoston Logan Intl
14h 40m
1 stop
SOF6:20 pmSofia
Mar 4
SOF2:00 pmSofia
11h 35m
1 stop
BOS6:35 pmBoston Logan Intl
$352
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States 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 31, 2025.
Use the filters below to find and compare flights from the United States to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 2/2

2:20 pm-1:15 pm

2 stops15h 55m

Sofia

Mon 2/16

12:35 pm-2:05 pm

1 stop32h 30m

$329

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 3/17

7:25 pm-11:50 am

1 stop10h 25m

Sofia

Mon 4/13

12:25 pm-7:06 pm

2 stops37h 41m

$330

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 1/21

2:20 pm-1:15 pm

2 stops15h 55m

Sofia

Wed 2/4

2:00 pm-6:35 pm

1 stop11h 35m

$337

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 1/20

2:20 pm-1:15 pm

2 stops15h 55m

Sofia

Tue 2/3

6:00 am-1:35 pm

1 stop14h 35m

$345

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Fri 1/16

3:40 pm-1:35 pm

1 stop14h 55m

Sofia

Thu 1/22

6:00 am-1:50 pm

1 stop14h 50m

$477

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sun 4/12

10:05 am-11:00 pm

2 stops29h 55m

Sofia

Sat 4/25

6:20 am-8:05 pm

1 stop20h 45m

$480

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sat 2/7

10:35 pm-1:50 pm

1 stop32h 15m

Sofia

Sun 3/15

2:35 pm-9:35 pm

1 stop13h 00m

$482

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Tue 1/20

10:35 pm-5:50 pm

1 stop12h 15m

Sofia

Sun 1/25

6:35 pm-8:35 pm

1 stop33h 00m

$487

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Sun 3/1

9:15 pm-8:50 pm

1 stop16h 35m

Sofia

Fri 3/13

9:35 am-8:20 pm

1 stop16h 45m

$534

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Sun 3/1

9:15 pm-8:50 pm

1 stop16h 35m

Sofia

Fri 3/13

9:35 am-8:20 pm

1 stop16h 45m

$535

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 United States 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 September is also cheap. Prices for this month can be found on momondo for an average of $587.

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

You are more likely to see cheaper flights to Bulgaria from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $707 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from United States for as low as $637 on momondo.

Can stopping save me money on United States to Bulgaria flights?

You could potentially save up to 32% on your flight if you consider stops on a United States to Bulgaria flight.

Cheap United States to Bulgaria flight deals and tips

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

Fastest flight time

10h 55m

Direct flights

None
The fastest flight from United States to Bulgaria takes 10h 55m
There are no direct flights from United States to Bulgaria. There are no popular flight routes from United States to Bulgaria.
Search flight deals

  • When did momondo last update prices for flights from United States to Bulgaria?

    Prices for flights from United States to Bulgaria refresh daily.

  • How many operators does momondo search for flights from United States to Bulgaria?

  • How old do you have to be to fly from United States 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 United States to Bulgaria.

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

    The required travel and health documents for your Bulgaria trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bulgaria. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from United States to Bulgaria

Compare and see reviews for airlines that fly from United States to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $353Free CancellationRating
7.5
1,830 reviews
Search SWISS flights
British AirwaysPriceFrom $356Free CancellationRating
6.7
7,626 reviews
Search British Airways flights
Austrian AirlinesPriceFrom $356Free CancellationRating
7.5
886 reviews
Search Austrian Airlines flights
KLMPriceFrom $380Free CancellationRating
7.7
1,435 reviews
Search KLM flights
Air FrancePriceFrom $416Free CancellationRating
7.4
1,515 reviews
Search Air France flights
United AirlinesPriceFrom $422Free CancellationRating
7.4
9,123 reviews
Search United Airlines flights
LOTPriceFrom $437Free CancellationRating
7.5
1,158 reviews
Search LOT flights
LufthansaPriceFrom $447Free CancellationRating
6.8
7,665 reviews
Search Lufthansa flights
JetBluePriceFrom $478Free CancellationRating
7.2
2,902 reviews
Search JetBlue flights
ITA AirwaysPriceFrom $505Free CancellationRating
6.7
1,116 reviews
Search ITA Airways flights

Why use momondo?

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

Finding the right flight to Bulgaria from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bulgaria quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for United States to Bulgaria flights to just show those with flexible booking policies.

How can momondo help me find flights from United States to Bulgaria?

momondo helps you find the best flight between United States 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 United States to Bulgaria right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bulgaria from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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