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$545+ Cheap flights from Hartford (BDL) to Sofia (SOF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — SOF
Jan 26 — Feb 21
Mon 1/26
Mon 2/2
1 adult, Economy
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Cheap flight deals from Hartford to Sofia

Best flights from Hartford to Sofia
Discover carefully curated flight deals from Hartford to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

This United Airlines deal was found by Cheapflights users on 12/23. 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.
Fri 2/63:00 pmBDL - SOF
2 stops15h 15mUnited Airlines
Mon 2/96:10 amSOF - BDL
2 stops24h 34mUnited Airlines
Deal found 12/23$545
This United Airlines deal was found by Cheapflights users on 12/25. 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.
Thu 1/299:55 amBDL - SOF
2 stops29h 50mUnited Airlines
Mon 2/26:10 amSOF - BDL
2 stops20h 04mUnited Airlines
Deal found 12/25$546

Find flight deals from Hartford to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Hartford (BDL) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 27, 2025.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$546
(United Airlines)
Provider with most accurate pricing for Hartford Bradley Intl-Sofia flight deals.
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Provider most trusted by Cheapflights users for Hartford Bradley Intl-Sofia flights.
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From Hartford Bradley Intl to Sofia
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Hartford 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 December 27, 2025.
Use the filters below to find and compare flights from Hartford to Sofia that are best for you.

Fly from

Hartford

Fly to

Sofia

Route

Depart

Return

Price

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Fri 2/6

3:00 pm-1:15 pm

2 stops15h 15m

Sofia

Mon 2/9

6:10 am-11:44 pm

2 stops24h 34m

$545

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Thu 1/29

9:55 am-10:45 pm

2 stops29h 50m

Sofia

Mon 2/2

6:10 am-7:14 pm

2 stops20h 04m

$546

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

  • Most accurate provider: When it comes to deals on Hartford-Sofia flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Hartford-Sofia flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Hartford-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hartford-Sofia flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hartford-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Hartford to Sofia

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

What is the cheapest time of day to fly from BDL to SOF?

Find hourly flight availability from Hartford 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 December 27, 2025.

A simple way to save on the total cost of your ticket is to fly from Hartford to Sofia in the morning. If you’re flexible enough to do this you can expect to save up to 56% on your trip compared to booking a flight in the afternoon.

Related info for your journey

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

  • How long is the flight from Hartford to Sofia?

    There are many flights that can get you from Hartford to Sofia in 15h 15m. Fly via United Airlines to get the fastest option. Hartford and Sofia are separated by a distance of 4607 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Hartford 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.

See more FAQs

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