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$217+ Cheap flights from the United States to Sofia (SOF)

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
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from USA to Sofia

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

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$597
(SWISS)

One-way from

$234
(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 Sofia
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One-way flight from USA to Sofia
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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 Sofia

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

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.
Mon 7/215:05 pmBOS - SOF
2 stops11h 55mSWISS
Mon 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.
Sat 8/28:05 pmBOS - SOF
2 stops19h 45mUnited Airlines
Thu 8/216:00 amSOF - BOS
2 stops24h 57mUnited Airlines
Deal found 4/30$598
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/129:35 pmBOS - SOF
1 stop15h 50mTurkish Airlines
Tue 5/279:15 pmSOF - BOS
1 stop29h 25mTurkish Airlines
Deal found 4/30$599
This Travelocity deal was found by Cheapflights users on 5/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3010:20 amBOS - SOF
2 stops19h 55mMultiple Airlines
Wed 8/1312:45 pmSOF - BOS
2 stops14h 10mMultiple Airlines
Deal found 5/1$602
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.
Sat 9/137:00 pmBOS - SOF
2 stops33h 15mAir Canada
Fri 9/266:15 amSOF - BOS
2 stops16h 44mAir 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.
Sun 9/1410:00 pmBOS - SOF
1 stop17h 50mLufthansa
Fri 9/261:50 pmSOF - BOS
1 stop13h 20mLufthansa
Deal found 4/29$611
This FlightHub deal was found by Cheapflights users on 5/1. 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.
Wed 7/232:20 pmORD - SOF
1 stop11h 45mMultiple Airlines
Wed 8/206:40 pmSOF - ORD
1 stop26h 15mMultiple Airlines
Deal found 5/1$629
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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.
Tue 7/2210:00 amBOS - SOF
2 stops19h 05mITA Airways
Wed 8/2012:55 pmSOF - BOS
2 stops25h 26mITA Airways
Deal found 5/1$638
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2711:25 amORD - SOF
1 stop13h 10mTurkish Airlines
Fri 10/173:35 pmSOF - ORD
1 stop26h 05mTurkish Airlines
Deal found 4/30$639
This Air Serbia 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/234:30 pmORD - SOF
1 stop15h 05mAir Serbia
Sat 10/185:00 amSOF - ORD
1 stop24h 00mAir Serbia
Deal found 4/30$641
This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/79:40 pmORD - SOF
1 stop13h 00mLufthansa
Sat 8/236:00 amSOF - ORD
2 stops21h 55mLufthansa
Deal found 4/30$642
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.
Tue 7/293:35 pmORD - SOF
1 stop12h 25mUnited Airlines
Wed 10/156:15 amSOF - ORD
2 stops21h 56mUnited Airlines
Deal found 4/30$644

Cheapflights Fare Finder

Customize your flight search to find flights from USA to Sofia 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 May 1, 2025.
Use the filters below to find and compare flights from the United States to Sofia that are best for you.

Fly from

USA

Fly to

Sofia

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 7/21

5:05 pm-12:00 pm

2 stops11h 55m

Sofia

Mon 8/25

3:30 pm-3:25 pm

1 stop30h 55m

$597

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sat 8/2

8:05 pm-10:50 pm

2 stops19h 45m

Sofia

Thu 8/21

6:00 am-11:57 pm

2 stops24h 57m

$598

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 5/12

9:35 pm-8:25 pm

1 stop15h 50m

Sofia

Tue 5/27

9:15 pm-7:40 pm

1 stop29h 25m

$599

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 7/30

10:20 am-1:15 pm

2 stops19h 55m

Sofia

Wed 8/13

12:45 pm-7:55 pm

2 stops14h 10m

$602

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sat 9/13

7:00 pm-11:15 am

2 stops33h 15m

Sofia

Fri 9/26

6:15 am-3:59 pm

2 stops16h 44m

$610

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 9/14

10:00 pm-10:50 pm

1 stop17h 50m

Sofia

Fri 9/26

1:50 pm-8:10 pm

1 stop13h 20m

$611

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 7/23

2:20 pm-10:05 am

1 stop11h 45m

Sofia

Wed 8/20

6:40 pm-12:55 pm

1 stop26h 15m

$629

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 7/22

10:00 am-12:05 pm

2 stops19h 05m

Sofia

Wed 8/20

12:55 pm-7:21 am

2 stops25h 26m

$638

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 7/27

11:25 am-8:35 am

1 stop13h 10m

Sofia

Fri 10/17

3:35 pm-9:40 am

1 stop26h 05m

$639

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 7/23

4:30 pm-3:35 pm

1 stop15h 05m

Sofia

Sat 10/18

5:00 am-9:00 pm

1 stop24h 00m

$641

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 Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia 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 Sofia

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

Currently, November is the cheapest month in which you can book a flight from USA to Sofia (average of $632). Flying from USA to Sofia 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 SOF?

Find hourly flight availability from USA to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 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 Sofia as you normally would.

Rainfall in Sofia by month

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

In terms of precipitation, rainfall in Sofia 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 Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

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

If weather is an important factor for your trip to Sofia, 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 Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated May 1, 2025.
Peruse reviews from past customers who have flown with Emirates, KLM and LOT from USA to Sofia to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.0
Very good
3,218 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Overall

8.0

Comfort

8.0

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
3,218 reviews
Emirates
8.0
Very good
3,218 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Overall

8.0

Comfort

8.0

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
3,218 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Overall

8.0

Comfort

8.0

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
3,218 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Overall

8.0

Comfort

8.0

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
3,218 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Overall

8.0

Comfort

8.0

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
1,589 reviews
Emirates
8.0
Very good
3,218 reviews

Food

7.8

Entertainment

8.2

Boarding

8.1

Crew

8.3

Overall

8.0

Comfort

8.0

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 Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from United States?

    Located just 4.2 mi from the city center, Sofia (SOF) is the airport most travelers will use when flying to Sofia from United States.

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

    The cheapest airline one-way is Air Serbia, with whom users have recently found tickets for as low as $370. However, be on the lookout for offers from Austrian Airlines and SWISS, as they are both options that can get you from USA to Sofia for a low price.

  • What are the most popular routes from USA to Sofia?

    The most popular flight routes from USA to Sofia are Chicago O'Hare Intl - Sofia, New York John F Kennedy Intl - Sofia and Newark - Sofia.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from USA to Sofia 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 Sofia?

    Currently, November is the cheapest month in which you can book a flight from USA to Sofia (average of $632). Flying from USA to Sofia 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

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Alternative routes for USA to Sofia

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 Sofia

Discover the top 10 airlines that operate flights from USA to Sofia. 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 May 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$790FlexibilityNo 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$985FlexibilityNo cancel feeOn-time78%
Air SerbiaCheapest$599Average$996FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$606Average$1,074FlexibilityNo cancel feeOn-time76%

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