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Cheap flights from the United States to Bulgaria from $198

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 11/10. 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

Logo
8:40 pm - 6:20 pmBOS-SOF
14h 40m1 stop
Logo
6:45 pm - 2:05 pmSOF-BOS
26h 20m1 stop
$351
Find Deal
Mon, Nov 3 - Mon, Nov 17
Logo
6:25 pm - 11:50 amBOS-SOF
10h 25m1 stop
Logo
2:00 pm - 6:35 pmSOF-BOS
11h 35m1 stop
$356
Find Deal
Tue, Nov 4 - Tue, Nov 18
Lufthansa Logo
8:40 pm - 10:45 pmBOS-SOF
19h 05m1 stop
Lufthansa Logo
7:05 pm - 6:35 pmSOF-BOS
30h 30m1 stop
$395Lufthansa
Find Deal
Mon, Jan 12 - Mon, Jan 26
United Airlines Logo
7:55 pm - 6:20 pmBOS-SOF
39h 25m2 stops
United Airlines Logo
6:05 am - 6:35 pmSOF-BOS
19h 30m1 stop
$399United Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 20
United Airlines Logo
7:55 pm - 6:20 pmBOS-SOF
39h 25m2 stops
United Airlines Logo
6:05 am - 3:57 pmSOF-BOS
40h 52m2 stops
$406United Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 20
Lufthansa Logo
8:40 pm - 6:20 pmBOS-SOF
14h 40m1 stop
Lufthansa Logo
2:00 pm - 6:35 pmSOF-BOS
11h 35m1 stop
$414Lufthansa
Find Deal
Sat, Nov 8 - Thu, Nov 20
LOT Logo
5:45 pm - 5:55 pmJFK-SOF
17h 10m1 stop
LOT Logo
2:35 pm - 8:35 pmSOF-JFK
13h 00m1 stop
$467LOT
Find Deal
Tue, Oct 21 - Wed, Nov 5
Turkish Airlines Logo
12:20 am - 9:15 amJFK-SOF
25h 55m1 stop
Turkish Airlines Logo
10:05 am - 11:05 amSOF-JFK
32h 00m1 stop
$481Turkish Airlines
Find Deal
Mon, Nov 3 - Thu, Nov 13
Turkish Airlines Logo
12:35 am - 8:25 pmJFK-SOF
12h 50m1 stop
Turkish Airlines Logo
4:00 pm - 11:25 pmSOF-JFK
13h 25m1 stop
$490Turkish Airlines
Find Deal
Wed, Oct 15 - Thu, Oct 30
LOT Logo
9:55 pm - 5:50 pmORD-SOF
35h 55m2 stops
LOT Logo
6:35 pm - 8:00 pmSOF-ORD
33h 25m1 stop
$547LOT
Find Deal
Sun, Nov 16 - Thu, Jan 15

Air France flights from United States to Bulgaria

Our best Air France deals on United States to Bulgaria flight tickets
Air France
Nov 5
BOS3:30 pmBoston Logan Intl
15h 35m
2 stops
SOF2:05 pmSofia
Nov 19
SOF7:00 amSofia
13h 40m
1 stop
BOS1:40 pmBoston Logan Intl
$370
Find similar
Air France
Nov 4
BOS6:30 pmBoston Logan Intl
12h 25m
1 stop
SOF1:55 pmSofia
Nov 18
SOF7:10 amSofia
18h 46m
2 stops
BOS6:56 pmBoston Logan Intl
$376
Find similar
Air France
Jan 13
BOS1:10 pmBoston Logan Intl
17h 45m
2 stops
SOF1:55 pmSofia
Jan 27
SOF7:10 amSofia
18h 13m
2 stops
BOS6:23 pmBoston Logan Intl
$380
Find similar

Austrian Airlines flights from United States to Bulgaria

Our best Austrian Airlines deals on United States to Bulgaria flight tickets
Austrian Airlines
Oct 15
BOS5:10 pmBoston Logan Intl
11h 30m
1 stop
SOF11:40 amSofia
Oct 29
SOF7:55 amSofia
16h 37m
2 stops
BOS6:32 pmBoston Logan Intl
$394
Find similar
Austrian Airlines
Oct 6
BOS5:10 pmBoston Logan Intl
18h 00m
1 stop
SOF6:10 pmSofia
Oct 20
SOF6:55 pmSofia
31h 01m
2 stops
BOS6:56 pmBoston Logan Intl
$401
Find similar
Austrian Airlines
Feb 10
BOS1:30 pmBoston Logan Intl
15h 20m
2 stops
SOF11:50 amSofia
Feb 24
SOF7:55 amSofia
16h 26m
2 stops
BOS5:21 pmBoston Logan Intl
$410
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 September 15, 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 11/3

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Mon 11/17

6:45 pm-2:05 pm

1 stop26h 20m

$351

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 11/4

6:25 pm-11:50 am

1 stop10h 25m

Sofia

Tue 11/18

2:00 pm-6:35 pm

1 stop11h 35m

$356

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 1/12

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Mon 1/26

7:05 pm-6:35 pm

1 stop30h 30m

$395

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sat 11/8

7:55 pm-6:20 pm

2 stops39h 25m

Sofia

Thu 11/20

6:05 am-6:35 pm

1 stop19h 30m

$399

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sat 11/8

7:55 pm-6:20 pm

2 stops39h 25m

Sofia

Thu 11/20

6:05 am-3:57 pm

2 stops40h 52m

$406

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sat 11/8

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Thu 11/20

2:00 pm-6:35 pm

1 stop11h 35m

$414

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Tue 10/21

5:45 pm-5:55 pm

1 stop17h 10m

Sofia

Wed 11/5

2:35 pm-8:35 pm

1 stop13h 00m

$467

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Mon 11/3

12:20 am-9:15 am

1 stop25h 55m

Sofia

Thu 11/13

10:05 am-11:05 am

1 stop32h 00m

$481

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Wed 10/15

12:35 am-8:25 pm

1 stop12h 50m

Sofia

Thu 10/30

4:00 pm-11:25 pm

1 stop13h 25m

$490

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 11/16

9:55 pm-5:50 pm

2 stops35h 55m

Sofia

Thu 1/15

6:35 pm-8:00 pm

1 stop33h 25m

$547

Flights are sorted by cheapest round-trip flights 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 November is also cheap. Prices for this month can be found on momondo for an average of $619.

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 weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $723 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 $638 on momondo.

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

You could potentially save up to 15% 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

Direct flights

None
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 $401Free CancellationRating
7.5
1,730 reviews
Search SWISS flights
Air FrancePriceFrom $416Free CancellationRating
7.4
1,469 reviews
Search Air France flights
United AirlinesPriceFrom $428Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
KLMPriceFrom $430Free CancellationRating
7.8
1,385 reviews
Search KLM flights
LOTPriceFrom $437Free CancellationRating
7.6
1,114 reviews
Search LOT flights
LufthansaPriceFrom $471Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom $471Free CancellationRating
7.6
850 reviews
Search Austrian Airlines flights
Turkish AirlinesPriceFrom $483Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
ITA AirwaysPriceFrom $505Free CancellationRating
6.7
1,036 reviews
Search ITA Airways flights
British AirwaysPriceFrom $510Free CancellationRating
6.6
7,361 reviews
Search British 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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