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Cheap flights from the United States to Bulgaria from $169

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 3/18. 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.
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
$338Lufthansa
Wed, Feb 4 - Wed, Feb 11
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
$340Lufthansa
Tue, Feb 3 - Tue, Feb 10
Austrian Airlines Logo
5:55 pm - 11:50 am
EWR
-
SOF
10h 55m1 stop
Austrian Airlines Logo
6:45 pm - 1:55 pm
SOF
-
EWR
26h 10m1 stop
$355Austrian Airlines
Sun, Jan 25 - Mon, Feb 9
Austrian Airlines Logo
5:10 pm - 11:40 am
BOS
-
SOF
11h 30m1 stop
Austrian Airlines Logo
6:55 pm - 1:50 pm
SOF
-
BOS
25h 55m1 stop
$357Austrian Airlines
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
3:45 pm - 6:10 pm
JFK
-
SOF
43h 25m2 stops
United Airlines Logo
2:20 pm - 1:35 pm
SOF
-
JFK
30h 15m1 stop
$481United Airlines
Sat, May 2 - Mon, Sep 28
United Airlines Logo
2:55 pm - 1:50 pm
LGA
-
SOF
15h 55m2 stops
United Airlines Logo
6:05 am - 6:42 pm
SOF
-
LGA
19h 37m2 stops
$484United Airlines
Thu, Jan 29 - Thu, Feb 12
LOT Logo
7:35 pm - 1:50 pm
MIA
-
SOF
35h 15m1 stop
LOT Logo
2:35 pm - 5:35 pm
SOF
-
MIA
34h 00m1 stop
$531LOT
Sun, Feb 8 - Sun, Feb 22
LOT Logo
9:55 pm - 1:50 pm
ORD
-
SOF
31h 55m2 stops
LOT Logo
6:35 pm - 8:55 pm
SOF
-
ORD
33h 20m2 stops
$541LOT
Sun, Feb 1 - Sun, Mar 22
Turkish Airlines Logo
7:50 pm - 8:15 pm
ORD
-
SOF
16h 25m1 stop
Turkish Airlines Logo
3:50 pm - 6:15 pm
SOF
-
ORD
34h 25m1 stop
$547Turkish Airlines
Thu, Apr 23 - Sun, May 31
Turkish Airlines Logo
11:50 am - 8:50 pm
ORD
-
SOF
25h 00m1 stop
Turkish Airlines Logo
9:35 am - 10:05 am
SOF
-
ORD
32h 30m1 stop
$551Turkish Airlines
Tue, Jan 20 - Sun, Feb 8

LOT flights from United States to Bulgaria

Our best LOT deals on United States to Bulgaria flight tickets
LOT
Feb 4
EWR11:10 pmNewark
11h 40m
1 stop
SOF5:50 pmSofia
Feb 18
SOF2:35 pmSofia
13h 25m
1 stop
EWR9:00 pmNewark
$380
LOT
Feb 1
EWR10:35 pmNewark
12h 15m
1 stop
SOF5:50 pmSofia
Feb 11
SOF2:35 pmSofia
13h 25m
1 stop
EWR9:00 pmNewark
$385
LOT
Jan 29
EWR10:35 pmNewark
32h 15m
1 stop
SOF1:50 pmSofia
Feb 12
SOF2:35 pmSofia
12h 50m
1 stop
EWR8:25 pmNewark
$431

Austrian Airlines flights from United States to Bulgaria

Our best Austrian Airlines deals on United States to Bulgaria flight tickets
Austrian Airlines
Jan 25
EWR5:55 pmNewark
10h 55m
1 stop
SOF11:50 amSofia
Feb 9
SOF6:45 pmSofia
26h 10m
1 stop
EWR1:55 pmNewark
$355
Austrian Airlines
Apr 7
BOS5:10 pmBoston Logan Intl
11h 30m
1 stop
SOF11:40 amSofia
Apr 21
SOF6:55 pmSofia
25h 55m
1 stop
BOS1:50 pmBoston Logan Intl
$357
Austrian Airlines
Jan 18
EWR5:55 pmNewark
10h 55m
1 stop
SOF11:50 amSofia
Feb 2
SOF6:45 pmSofia
26h 10m
1 stop
EWR1:55 pmNewark
$358

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 January 8, 2026.
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

Wed 2/4

2:20 pm-1:15 pm

2 stops15h 55m

Sofia

Wed 2/11

2:00 pm-6:35 pm

1 stop11h 35m

$338

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/3

2:20 pm-1:15 pm

2 stops15h 55m

Sofia

Tue 2/10

2:00 pm-6:35 pm

1 stop11h 35m

$340

NewarkSofia

EWR - SOF

EWRSOF

Newark

Sun 1/25

5:55 pm-11:50 am

1 stop10h 55m

Sofia

Mon 2/9

6:45 pm-1:55 pm

1 stop26h 10m

$355

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/7

5:10 pm-11:40 am

1 stop11h 30m

Sofia

Tue 4/21

6:55 pm-1:50 pm

1 stop25h 55m

$357

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sat 5/2

3:45 pm-6:10 pm

2 stops43h 25m

Sofia

Mon 9/28

2:20 pm-1:35 pm

1 stop30h 15m

$481

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Thu 1/29

2:55 pm-1:50 pm

2 stops15h 55m

Sofia

Thu 2/12

6:05 am-6:42 pm

2 stops19h 37m

$484

MiamiSofia

MIA - SOF

MIASOF

Miami

Sun 2/8

7:35 pm-1:50 pm

1 stop35h 15m

Sofia

Sun 2/22

2:35 pm-5:35 pm

1 stop34h 00m

$531

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 2/1

9:55 pm-1:50 pm

2 stops31h 55m

Sofia

Sun 3/22

6:35 pm-8:55 pm

2 stops33h 20m

$541

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 4/23

7:50 pm-8:15 pm

1 stop16h 25m

Sofia

Sun 5/31

3:50 pm-6:15 pm

1 stop34h 25m

$547

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 1/20

11:50 am-8:50 pm

1 stop25h 00m

Sofia

Sun 2/8

9:35 am-10:05 am

1 stop32h 30m

$551

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 $704 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 $652 on momondo.

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

You could potentially save up to 17% 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 15m

Direct flights

None
The fastest flight from United States to Bulgaria takes 10h 15m
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
1,840 reviews
Search SWISS flights
British AirwaysPriceFrom $356Free CancellationRating
6.7
7,657 reviews
Search British Airways flights
Austrian AirlinesPriceFrom $356Free CancellationRating
7.6
889 reviews
Search Austrian Airlines flights
KLMPriceFrom $380Free CancellationRating
7.7
1,434 reviews
Search KLM flights
Air FrancePriceFrom $416Free CancellationRating
7.4
1,519 reviews
Search Air France flights
United AirlinesPriceFrom $422Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
LOTPriceFrom $437Free CancellationRating
7.5
1,168 reviews
Search LOT flights
LufthansaPriceFrom $446Free CancellationRating
6.8
7,692 reviews
Search Lufthansa flights
JetBluePriceFrom $478Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
ITA AirwaysPriceFrom $505Free CancellationRating
6.7
1,126 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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