$608 Cheap Flights from Sofia (SOF) to Baltimore (BWI)

View $608 flight on Sat, Nov 1, 2025Opens in a new window

Popular airlines from Sofia Airport (SOF) to Baltimore Washington Intl. Airport (BWI)

Cheap Flights from Sofia to Baltimore (SOF-BWI)

Prices were available within the past 7 days and start at $608 for one-way flights and $633 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Thu, Aug 28 - Thu, Sep 11
SOF
Sofia
BWI
Baltimore
$633 Roundtrip, found 5 days ago
$633
Roundtrip
found 5 days ago
Select KLM flight, departing Thu, Aug 28 from Sofia to Baltimore, returning Thu, Sep 11, priced at $633 found 5 days ago
KLM
Wed, Aug 27 - Thu, Sep 11
SOF
Sofia
BWI
Baltimore
$639 Roundtrip, found 5 days ago
$639
Roundtrip
found 5 days ago
Select KLM flight, departing Wed, Aug 27 from Sofia to Baltimore, returning Thu, Sep 11, priced at $639 found 5 days ago
KLM
Fri, Aug 29 - Thu, Sep 11
SOF
Sofia
BWI
Baltimore
$650 Roundtrip, found 5 days ago
$650
Roundtrip
found 5 days ago
Select KLM flight, departing Fri, Aug 29 from Sofia to Baltimore, returning Thu, Sep 11, priced at $650 found 5 days ago
KLM
Fri, Aug 29 - Thu, Sep 11
SOF
Sofia
BWI
Baltimore
$655 Roundtrip, found 5 days ago
$655
Roundtrip
found 5 days ago
Select KLM flight, departing Fri, Aug 29 from Sofia to Baltimore, returning Thu, Sep 11, priced at $655 found 5 days ago
United
Mon, Sep 1 - Mon, Sep 8
SOF
Sofia
BWI
Baltimore
$714 Roundtrip, found 5 days ago
$714
Roundtrip
found 5 days ago
Select United flight, departing Mon, Sep 1 from Sofia to Baltimore, returning Mon, Sep 8, priced at $714 found 5 days ago
United
Fri, Aug 29 - Thu, Sep 11
SOF
Sofia
BWI
Baltimore
$721 Roundtrip, found 5 days ago
$721
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 29 from Sofia to Baltimore, returning Thu, Sep 11, priced at $721 found 5 days ago
Bulgaria Air
Wed, Aug 27 - Fri, Sep 12
SOF
Sofia
BWI
Baltimore
$730 Roundtrip, found 5 days ago
$730
Roundtrip
found 5 days ago
Select Bulgaria Air flight, departing Wed, Aug 27 from Sofia to Baltimore, returning Fri, Sep 12, priced at $730 found 5 days ago
Bulgaria Air
Tue, Sep 30 - Wed, Oct 8
SOF
Sofia
BWI
Baltimore
$735 Roundtrip, found 5 days ago
$735
Roundtrip
found 5 days ago
Select Bulgaria Air flight, departing Tue, Sep 30 from Sofia to Baltimore, returning Wed, Oct 8, priced at $735 found 5 days ago
Lufthansa
Fri, Aug 29 - Thu, Sep 11
SOF
Sofia
BWI
Baltimore
$756 Roundtrip, found 5 days ago
$756
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Aug 29 from Sofia to Baltimore, returning Thu, Sep 11, priced at $756 found 5 days ago
British Airways
Wed, Aug 27 - Sun, Aug 31
SOF
Sofia
BWI
Baltimore
$897 Roundtrip, found 5 days ago
$897
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Aug 27 from Sofia to Baltimore, returning Sun, Aug 31, priced at $897 found 5 days ago
Flights from Sofia (SOF) to Baltimore (BWI)
Origin airport
Sofia
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Roundtrip price
$632
Distance
4892 mi

Sofia to Baltimore Flights

The cheapest times to fly from Sofia to Baltimore

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 Baltimore are during the month of August. You can find some of the cheapest flights from Sofia to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sofia to Baltimore

Sunday is one of the best days to book for cheap flights from Sofia to Baltimore: 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 Baltimore

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 Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $608 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 Baltimore 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 Baltimore 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Discover the latest flight deals from SOF to BWI 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 BWI?
The cheapest flights from SOF to BWI 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 BWI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SOF to BWI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Sofia Airport (SOF) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Direct flights from Sofia Airport (SOF) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SOF to BWI?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, airline and other factors.*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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Select a flight from Sofia Airport (SOF) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) that takes off before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Holding off until just before your departure to book a ticket from SOF to BWI generally means paying more. While you might find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of getting a bargain.
Is it cheaper to book a SOF to BWI flight and hotel package?
You can save money by booking a SOF to BWI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your ideal accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Sofia Airport (SOF) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
It's generally possible to reschedule or cancel your SOF to BWI flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.