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$346+ Cheap flights from Reagan-National (DCA) 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SOF
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Reagan-National to Sofia

Cheapest flights from Reagan-National to Sofia
Explore the most affordable flight options available from Reagan-National to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This oojo deal was found by Cheapflights users on 2/2. 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.
Wed 8/53:50 pm
DCA
-
SOF
2 stops38h 35m
British Airways
Wed 8/199:25 pm
SOF
-
DCA
2 stops30h 58m
British Airways
Deal found 2/2$550
This oojo deal was found by Cheapflights users on 2/3. 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.
Mon 9/710:09 pm
DCA
-
SOF
2 stops39h 21m
British Airways
Mon 9/218:10 pm
SOF
-
DCA
2 stops33h 52m
British Airways
Deal found 2/3$555
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Tue 9/84:20 pm
DCA
-
SOF
2 stops19h 20m
Air Canada
Tue 9/2211:35 am
SOF
-
DCA
2 stops17h 15m
Air Canada
Deal found 2/3$556
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:30 am
DCA
-
SOF
2 stops17h 40m
United Airlines
Tue 9/152:10 pm
SOF
-
DCA
2 stops32h 30m
United Airlines
Deal found 2/1$557
This FlightHub deal was found by Cheapflights users on 2/3. 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.
Tue 5/56:59 am
DCA
-
SOF
2 stops22h 11m
Air Canada
Tue 5/196:10 am
SOF
-
DCA
2 stops16h 29m
Air Canada
Deal found 2/3$561
This FlightHub deal was found by Cheapflights users on 2/4. 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 5/66:00 am
DCA
-
SOF
2 stops24h 25m
Air Canada
Wed 5/206:20 am
SOF
-
DCA
2 stops22h 35m
Air Canada
Deal found 2/4$568
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Tue 9/111:00 am
DCA
-
SOF
2 stops17h 00m
Multiple Airlines
Tue 9/2211:35 am
SOF
-
DCA
2 stops17h 15m
Multiple Airlines
Deal found 2/3$573
This oojo deal was found by Cheapflights users on 2/2. 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.
Mon 5/48:52 pm
DCA
-
SOF
2 stops40h 38m
British Airways
Mon 5/188:10 pm
SOF
-
DCA
2 stops33h 19m
British Airways
Deal found 2/2$585
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Wed 3/256:00 am
DCA
-
SOF
2 stops30h 20m
Air Canada
Tue 4/76:10 am
SOF
-
DCA
2 stops35h 09m
Air Canada
Deal found 2/3$587
This Orbitz deal was found by Cheapflights users on 2/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:40 am
DCA
-
SOF
2 stops18h 20m
Multiple Airlines
Mon 8/247:00 pm
SOF
-
DCA
2 stops27h 38m
Multiple Airlines
Deal found 2/4$589
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Sun 3/298:40 pm
DCA
-
SOF
2 stops32h 30m
Air Canada
Tue 4/712:55 pm
SOF
-
DCA
2 stops33h 35m
Air Canada
Deal found 2/3$592

Find flight deals from Reagan-National to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$561
(FlightHub)

One-way from

$346
(FlightHub)

Popular in

December

Cheapest in

January

Average price

$791
Provider with most accurate pricing for Washington, D.C. Reagan-National-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Sofia flights.
Search Deals
From Washington, D.C. Reagan-National to Sofia
Search Deals
One-way flight from Washington, D.C. Reagan-National to Sofia
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 February 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Sofia that are best for you.

Fly from

Reagan-National

Fly to

Sofia

Route

Depart

Return

Price

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Mon 7/6

4:20 pm-1:05 pm

2 stops37h 45m

Sofia

Fri 8/14

6:20 am-10:18 am

2 stops34h 58m

$598

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Sun 5/17

4:20 pm-6:00 pm

2 stops42h 40m

Sofia

Mon 8/17

2:20 pm-9:48 pm

2 stops38h 28m

$619

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Tue 4/28

9:40 am-12:10 pm

2 stops19h 30m

Sofia

Tue 5/19

6:10 am-10:19 am

2 stops35h 09m

$621

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Tue 4/28

6:59 am-12:10 pm

2 stops22h 11m

Sofia

Thu 5/21

6:30 am-3:39 pm

2 stops16h 09m

$621

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Thu 3/5

11:05 am-11:50 am

2 stops17h 45m

Sofia

Tue 3/10

2:15 pm-8:55 am

2 stops24h 40m

$625

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Sun 3/1

6:50 pm-6:00 pm

2 stops16h 10m

Sofia

Tue 3/10

2:15 pm-9:56 pm

2 stops37h 41m

$625

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Wed 4/29

12:59 pm-2:00 pm

2 stops18h 01m

Sofia

Tue 5/19

7:00 am-4:59 pm

2 stops16h 59m

$626

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Sun 3/22

5:00 pm-4:20 pm

2 stops17h 20m

Sofia

Sun 3/29

9:05 pm-4:37 pm

2 stops26h 32m

$629

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Sat 5/2

6:55 pm-11:00 am

2 stops33h 05m

Sofia

Wed 5/20

6:20 am-3:39 pm

2 stops16h 19m

$633

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

Sat 5/2

6:55 pm-1:35 pm

2 stops35h 40m

Sofia

Thu 5/21

6:30 am-3:39 pm

2 stops16h 09m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 13 results
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Compare providers for flights from Reagan-National to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Sofia in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Reagan-National Airport-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 Reagan-National to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Reagan-National 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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 Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Sofia, you will be flying into Sofia. Sofia (SOF) is just 4.2 mi from the center of the city. Sofia is the only Sofia airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Sofia from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Sofia?

    A quick flight from Washington, D.C. Reagan-National Airport to Sofia can take about 37h 45m. Air Canada provides one of the quickest options available for as low as $598. The distance between Washington, D.C. Reagan-National Airport and Sofia is about 4919 mi.

  • Can I find deals for flights from Reagan-National to Sofia that include hotel bookings?

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

  • How can I find direct flights from Reagan-National to Sofia?

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

  • Can I find deals for business class flights from Reagan-National to Sofia?

    Yes. Cheapflights offers flight deals from Reagan-National 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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