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$217+ Cheap flights from the United States to Bulgaria

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOF
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from USA to Bulgaria

Keep the following information in mind while searching for USA to Bulgaria flight deals. Data was last updated mayo 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$597
(SWISS)

One-way from

$217
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$887
Provider with most accurate pricing for New York (NYC)-Sofia flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Sofia flights.
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From USA to Bulgaria
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One-way flight from USA to Bulgaria
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Highest demand for flights based on searches. 18% potential increase in price ($178 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from USA to Bulgaria

Cheapest flights from USA to Bulgaria
Explore the most affordable flight options available from USA to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Justfly.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/59:35 pmBOS - SOF
1 stop34h 10mTurkish Airlines
jue. 5/229:15 pmSOF - BOS
1 stop29h 25mTurkish Airlines
Deal found 4/28$596
This SWISS deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/215:05 pmBOS - SOF
2 stops11h 55mSWISS
lun. 8/253:30 pmSOF - BOS
1 stop30h 55mSWISS
Deal found 4/30$597
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/28:05 pmBOS - SOF
2 stops19h 45mUnited Airlines
jue. 8/216:00 amSOF - BOS
2 stops24h 57mUnited Airlines
Deal found 4/30$598
This Air Canada deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/137:00 pmBOS - SOF
2 stops33h 15mAir Canada
mié. 9/246:15 amSOF - BOS
2 stops34h 20mAir Canada
Deal found 4/29$610
This Lufthansa deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/1410:00 pmBOS - SOF
1 stop17h 50mLufthansa
vie. 9/261:50 pmSOF - BOS
1 stop13h 20mLufthansa
Deal found 4/29$611
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/129:40 pmBOS - SOF
1 stop29h 25mMultiple Airlines
mar. 8/196:20 amSOF - BOS
2 stops34h 15mMultiple Airlines
Deal found 4/29$621
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1211:25 amORD - SOF
1 stop13h 10mTurkish Airlines
mié. 9/173:35 pmSOF - ORD
1 stop26h 05mTurkish Airlines
Deal found 4/29$625
This CrystalTravel deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/43:35 pmORD - SOF
1 stop12h 25mLufthansa
lun. 8/257:25 pmSOF - ORD
1 stop25h 05mLufthansa
Deal found 4/29$627
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/62:20 pmORD - SOF
1 stop11h 45mMultiple Airlines
mié. 8/206:40 pmSOF - ORD
1 stop26h 15mMultiple Airlines
Deal found 4/30$629
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/69:40 pmORD - SOF
1 stop17h 20mUnited Airlines
mié. 8/206:15 amSOF - ORD
2 stops17h 40mUnited Airlines
Deal found 4/30$637
This Cheapflightsfares deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/229:55 amBOS - SOF
2 stops19h 10mITA Airways
mié. 8/2012:55 pmSOF - BOS
2 stops25h 26mITA Airways
Deal found 4/30$638
This SWISS deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/292:20 pmORD - SOF
1 stop11h 45mSWISS
lun. 8/183:30 pmSOF - ORD
1 stop32h 25mSWISS
Deal found 4/29$644

Cheapflights Fare Finder

Customize your flight search to find flights from USA 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, Cheapflights users made 2,558,603 searches. Data last updated mayo 1, 2025.
Use the filters below to find and compare flights from the United States to Bulgaria that are best for you.

Fly from

USA

Fly to

Bulgaria

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

lun. 7/21

5:05 pm-12:00 pm

2 stops11h 55m

Sofia

lun. 8/25

3:30 pm-3:25 pm

1 stop30h 55m

$596

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

sáb. 8/2

8:05 pm-10:50 pm

2 stops19h 45m

Sofia

jue. 8/21

6:00 am-11:57 pm

2 stops24h 57m

$598

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

lun. 5/12

9:35 pm-8:25 pm

1 stop15h 50m

Sofia

mar. 5/27

9:15 pm-7:40 pm

1 stop29h 25m

$599

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

sáb. 9/13

7:00 pm-11:15 am

2 stops33h 15m

Sofia

mié. 9/24

6:15 am-9:35 am

2 stops34h 20m

$610

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

dom. 9/14

10:00 pm-10:50 pm

1 stop17h 50m

Sofia

vie. 9/26

1:50 pm-8:10 pm

1 stop13h 20m

$611

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

mar. 8/12

9:40 pm-10:05 am

1 stop29h 25m

Sofia

mar. 8/19

6:20 am-9:35 am

2 stops34h 15m

$621

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mar. 7/22

2:20 pm-10:05 am

1 stop11h 45m

Sofia

vie. 10/17

8:00 am-1:20 pm

1 stop13h 20m

$633

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

mar. 7/22

9:55 am-12:05 pm

2 stops19h 10m

Sofia

mié. 8/20

12:55 pm-7:21 am

2 stops25h 26m

$638

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

dom. 7/27

11:25 am-8:35 am

1 stop13h 10m

Sofia

vie. 10/17

3:35 pm-9:40 am

1 stop26h 05m

$639

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mar. 7/29

2:20 pm-10:05 am

1 stop11h 45m

Sofia

lun. 8/18

3:30 pm-3:55 pm

1 stop32h 25m

$644

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 results
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Best time to book a flight from USA to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from USA with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to Bulgaria

What is the cheapest month to book a flight from USA to Bulgaria?

Currently, November is the cheapest month in which you can book a flight from USA to Bulgaria (average of $632). Flying from USA to Bulgaria in June is currently the most expensive (average of $1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from US to BG?

Find hourly flight availability from USA to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to Bulgaria as you normally would.

Rainfall in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bulgaria ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bulgaria, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bulgaria. Reviews last updated mayo 1, 2025.
See what other customers who have flown with Emirates, KLM and LOT from USA to Bulgaria have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.0
Very good
3,215 reviews

Entertainment

8.2

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.0
Very good
3,215 reviews
Emirates
8.0
Very good
3,215 reviews

Entertainment

8.2

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
KLM
7.8
Good
1,334 reviews
Emirates
8.0
Very good
3,215 reviews

Entertainment

8.2

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
LOT
7.6
Good
1,069 reviews
Emirates
8.0
Very good
3,215 reviews

Entertainment

8.2

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Austrian Airlines
7.6
Good
781 reviews
Emirates
8.0
Very good
3,215 reviews

Entertainment

8.2

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
SWISS
7.5
Good
1,588 reviews
Emirates
8.0
Very good
3,215 reviews

Entertainment

8.2

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from USA to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from USA to Bulgaria one-way?

    To fly one-way, consider booking your trip with Air Serbia, which is currently one of the cheapest options available, starting at $304. British Airways flights start at $359 while deals on SWISS start at $382 one-way.

  • Can I find deals for flights from USA to Bulgaria that include hotel bookings?

    Yes. In addition to deals on USA to Bulgaria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to Bulgaria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Bulgaria.

  • Can I find deals for business class flights from USA to Bulgaria?

    Yes. Cheapflights offers flight deals from USA to Bulgaria by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from USA to Bulgaria?

    Currently, November is the cheapest month in which you can book a flight from USA to Bulgaria (average of $632). Flying from USA to Bulgaria in June is currently the most expensive (average of $1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for USA to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from USA to Bulgaria

Discover the top 10 airlines that operate flights from USA to Bulgaria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$401Average$986FlexibilityNo cancel feeOn-time79%
ITA AirwaysCheapest$499Average$1,126FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$504Average$859FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$515Average$968FlexibilityNo cancel feeOn-time77%
KLMCheapest$568Average$876FlexibilityNo cancel feeOn-time75%
LOTCheapest$577Average$993FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$579Average$990FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$598Average$963FlexibilityNo cancel feeOn-time78%
Air SerbiaCheapest$599Average$996FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$606Average$1,084FlexibilityNo cancel feeOn-time76%

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