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Cheap flights from the United States to Bulgaria from $227

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 1/18. 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.
Austrian Airlines Logo
2:20 pm - 6:00 pmBOS-SOF
20h 40m2 stops
Austrian Airlines Logo
12:35 pm - 2:05 pmSOF-BOS
32h 30m1 stop
$326Austrian Airlines
Find Deal
Mon, Feb 9 - Mon, Feb 23
Austrian Airlines Logo
2:20 pm - 6:00 pmBOS-SOF
20h 40m2 stops
Austrian Airlines Logo
12:35 pm - 2:05 pmSOF-BOS
32h 30m1 stop
$327Austrian Airlines
Find Deal
Mon, Feb 9 - Mon, Feb 23
Austrian Airlines Logo
2:20 pm - 6:00 pmBOS-SOF
20h 40m2 stops
Austrian Airlines Logo
6:45 pm - 2:05 pmSOF-BOS
26h 20m1 stop
$333Austrian Airlines
Find Deal
Mon, Feb 9 - Mon, Feb 23
Lufthansa Logo
8:45 pm - 6:20 pmEWR-SOF
14h 35m2 stops
Lufthansa Logo
6:05 am - 12:40 pmSOF-EWR
13h 35m1 stop
$356Lufthansa
Find Deal
Wed, Jan 14 - Wed, Jan 28
LOT Logo
10:50 pm - 2:00 amEWR-SOF
20h 10m1 stop
LOT Logo
2:40 pm - 8:50 pmSOF-EWR
13h 10m1 stop
$375LOT
Find Deal
Tue, Apr 28 - Tue, May 12
United Airlines Logo
6:10 pm - 11:50 amJFK-SOF
10h 40m1 stop
United Airlines Logo
6:10 am - 8:58 pmSOF-JFK
21h 48m2 stops
$431United Airlines
Find Deal
Wed, Dec 24 - Wed, Jan 7
United Airlines Logo
4:25 pm - 1:15 pmJFK-SOF
13h 50m2 stops
United Airlines Logo
1:45 pm - 1:05 pmSOF-JFK
30h 20m2 stops
$433United Airlines
Find Deal
Mon, Jan 19 - Mon, Feb 2
Lufthansa Logo
5:35 pm - 6:20 pmLGA-SOF
17h 45m2 stops
Lufthansa Logo
7:05 pm - 9:33 pmSOF-LGA
33h 28m2 stops
$436Lufthansa
Find Deal
Sun, Jan 25 - Sun, Feb 8
Turkish Airlines Logo
1:30 pm - 3:10 pmIAD-SOF
18h 40m1 stop
Turkish Airlines Logo
4:00 pm - 11:45 amSOF-IAD
26h 45m1 stop
$528Turkish Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 27
Turkish Airlines Logo
9:15 pm - 8:50 pmIAD-SOF
16h 35m1 stop
Turkish Airlines Logo
9:35 am - 7:20 pmSOF-IAD
16h 45m1 stop
$529Turkish Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21

British Airways flights from United States to Bulgaria

Our best British Airways deals on United States to Bulgaria flight tickets
British Airways
Apr 22
BOS9:50 pmBoston Logan Intl
32h 40m
1 stop
SOF1:30 pmSofia
Apr 29
SOF9:30 pmSofia
29h 35m
1 stop
BOS8:05 pmBoston Logan Intl
$360
Find similar
British Airways
Feb 8
BOS6:55 pmBoston Logan Intl
14h 25m
1 stop
SOF4:20 pmSofia
Feb 25
SOF9:00 pmSofia
29h 45m
1 stop
BOS7:45 pmBoston Logan Intl
$378
Find similar
British Airways
Feb 23
LGA9:10 pmNew York LaGuardia
40h 00m
2 stops
SOF8:10 pmSofia
Mar 9
SOF5:25 pmSofia
33h 42m
2 stops
LGA9:07 pmNew York LaGuardia
$439
Find similar

Air France flights from United States to Bulgaria

Our best Air France deals on United States to Bulgaria flight tickets
Air France
Feb 9
BOS1:00 pmBoston Logan Intl
18h 05m
2 stops
SOF2:05 pmSofia
Feb 24
SOF7:10 amSofia
16h 10m
1 stop
BOS4:20 pmBoston Logan Intl
$365
Find similar
Air France
Feb 9
BOS6:30 pmBoston Logan Intl
12h 35m
1 stop
SOF2:05 pmSofia
Feb 24
SOF7:10 amSofia
13h 30m
1 stop
BOS1:40 pmBoston Logan Intl
$367
Find similar
Air France
Feb 9
BOS1:00 pmBoston Logan Intl
18h 05m
2 stops
SOF2:05 pmSofia
Feb 24
SOF7:10 amSofia
13h 30m
1 stop
BOS1:40 pmBoston Logan Intl
$370
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 November 26, 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 2/9

2:20 pm-6:00 pm

2 stops20h 40m

Sofia

Mon 2/23

12:35 pm-2:05 pm

1 stop32h 30m

$326

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 2/9

2:20 pm-6:00 pm

2 stops20h 40m

Sofia

Mon 2/23

12:35 pm-2:05 pm

1 stop32h 30m

$327

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 2/9

2:20 pm-6:00 pm

2 stops20h 40m

Sofia

Mon 2/23

6:45 pm-2:05 pm

1 stop26h 20m

$333

NewarkSofia

EWR - SOF

EWRSOF

Newark

Wed 1/14

8:45 pm-6:20 pm

2 stops14h 35m

Sofia

Wed 1/28

6:05 am-12:40 pm

1 stop13h 35m

$356

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 4/28

10:50 pm-2:00 am

1 stop20h 10m

Sofia

Tue 5/12

2:40 pm-8:50 pm

1 stop13h 10m

$375

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Wed 12/24

6:10 pm-11:50 am

1 stop10h 40m

Sofia

Wed 1/7

6:10 am-8:58 pm

2 stops21h 48m

$431

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Mon 1/19

4:25 pm-1:15 pm

2 stops13h 50m

Sofia

Mon 2/2

1:45 pm-1:05 pm

2 stops30h 20m

$433

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Sun 1/25

5:35 pm-6:20 pm

2 stops17h 45m

Sofia

Sun 2/8

7:05 pm-9:33 pm

2 stops33h 28m

$436

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 1/12

1:30 pm-3:10 pm

1 stop18h 40m

Sofia

Tue 1/27

4:00 pm-11:45 am

1 stop26h 45m

$528

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 1/14

9:15 pm-8:50 pm

1 stop16h 35m

Sofia

Wed 1/21

9:35 am-7:20 pm

1 stop16h 45m

$529

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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $599.

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

The cheapest day to depart from United States to Bulgaria is on a Monday when prices can be found for as low as $773. On the other hand, Saturday is the most expensive day to depart from United States because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,099.

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 United States to Bulgaria when you can find flight prices for as low as $695. 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 afternoon, with an average ticket price of $942. Departure times in the afternoon 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 United States when booking week ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $714 when searching week 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 $634 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 25m

Direct flights

None
The fastest flight from United States to Bulgaria takes 10h 25m
There are no direct flights from United States to Bulgaria. There are no popular flight routes from United States to Bulgaria.
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  • 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
1,794 reviews
Search SWISS flights
Austrian AirlinesPriceFrom $355Free CancellationRating
7.6
874 reviews
Search Austrian Airlines flights
British AirwaysPriceFrom $406Free CancellationRating
6.7
7,539 reviews
Search British Airways flights
KLMPriceFrom $407Free CancellationRating
7.7
1,423 reviews
Search KLM flights
Air FrancePriceFrom $416Free CancellationRating
7.4
1,497 reviews
Search Air France flights
United AirlinesPriceFrom $428Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
LOTPriceFrom $437Free CancellationRating
7.5
1,140 reviews
Search LOT flights
LufthansaPriceFrom $451Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $497Free CancellationRating
7.3
4,060 reviews
Search Turkish Airlines flights
ITA AirwaysPriceFrom $505Free CancellationRating
6.7
1,089 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.

An easier way to manage your Bulgaria trip

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