$562 Cheap Flights from Sofia (SOF) to Hartford (BDL)

View $562 flight on Sat, Oct 18, 2025Opens in a new window

Popular airlines from Sofia Airport (SOF) to Bradley Intl. Airport (BDL)

Cheap Flights from Sofia to Hartford (SOF-BDL)

Prices were available within the past 7 days and start at $562 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Sofia (SOF) to Hartford (BDL)
Origin airport
Sofia
Destination airport
Bradley Intl.
Distance
4610 mi

Sofia to Hartford Flights

The cheapest times to fly from Sofia to Hartford

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sofia to Hartford are during the month of . You can find some of the cheapest flights from Sofia to Hartford with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sofia to Hartford

Sunday is one of the best days to book for cheap flights from Sofia to Hartford: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sofia to Hartford

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sofia to Hartford in 2025. You can also book with separate airlines for your outbound and return journeys, from $562 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sofia to Hartford flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sofia to Hartford airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Sofia Airport (SOF) to Bradley Intl. Airport (BDL) cost?
Discover the latest flight deals from SOF to BDL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SOF to BDL?
The cheapest flights from SOF to BDL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SOF to BDL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SOF to BDL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Sofia Airport (SOF) to Bradley Intl. Airport (BDL)?
You'll have to catch a flight with a layover when traveling from Sofia Airport (SOF) to Bradley Intl. Airport (BDL). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from SOF to BDL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sofia Airport (SOF) to Bradley Intl. Airport (BDL)?
To arrive at Bradley Intl. Airport (BDL) on time, select a flight that leaves from Sofia Airport (SOF) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sofia Airport (SOF) to Bradley Intl. Airport (BDL) last-minute?
Last-minute fares from SOF to BDL are generally more expensive. To lock in the lowest rates, start looking for flights as early as possible. That being said, if you're flexible with your travel plans, you may score a cheap ticket right before you leave.
Is it cheaper to book a SOF to BDL flight and hotel package?
Compared with arranging flights and hotels separately, booking a SOF to BDL flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place takes the hassle out of travel planning. Just secure your flights and select from our extensive range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Sofia Airport (SOF) to Bradley Intl. Airport (BDL)?
In most instances, you're able to cancel or reschedule your SOF to BDL flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, head to our Customer Service portal.

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*Available to One Key members.