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Washington, D.C.

$386+ Cheap flights from Sofia (SOF) to Washington, D.C. (WAS)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — WAS
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from Sofia to Washington, D.C.

Cheapest flights from Sofia to Washington, D.C.
Explore the most affordable flight options available from Sofia to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This KLM deal was found by Cheapflights users on 2/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:00 am
SOF
-
IAD
1 stop16h 05m
Multiple Airlines
Wed 3/117:50 pm
IAD
-
SOF
1 stop12h 15m
Multiple Airlines
Deal found 2/10$514
This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:00 am
SOF
-
IAD
1 stop16h 05m
Multiple Airlines
Wed 3/187:50 pm
IAD
-
SOF
1 stop12h 15m
Multiple Airlines
Deal found 2/11$516
This KLM deal was found by Cheapflights users on 2/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:00 am
SOF
-
IAD
1 stop15h 35m
Multiple Airlines
Thu 4/236:15 pm
IAD
-
SOF
1 stop12h 45m
Multiple Airlines
Deal found 2/12$517
This Air France deal was found by Cheapflights users on 2/10. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:00 am
SOF
-
IAD
1 stop16h 35m
Air France
Mon 3/97:50 pm
IAD
-
SOF
1 stop12h 15m
Air France
Deal found 2/10$520
This KLM deal was found by Cheapflights users on 2/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:00 am
SOF
-
IAD
1 stop15h 35m
Multiple Airlines
Wed 4/1512:42 pm
IAD
-
SOF
2 stops18h 18m
Multiple Airlines
Deal found 2/12$522
This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:00 am
SOF
-
IAD
2 stops18h 19m
Multiple Airlines
Tue 3/177:50 pm
IAD
-
SOF
1 stop12h 05m
Multiple Airlines
Deal found 2/11$526
This KLM deal was found by Cheapflights users on 2/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:00 am
SOF
-
IAD
1 stop15h 35m
Multiple Airlines
Sat 5/309:45 pm
IAD
-
SOF
1 stop33h 15m
Multiple Airlines
Deal found 2/10$527
This KLM deal was found by Cheapflights users on 2/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 am
SOF
-
IAD
1 stop15h 35m
Multiple Airlines
Tue 5/266:15 pm
IAD
-
SOF
1 stop12h 45m
Multiple Airlines
Deal found 2/12$528
This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:00 am
SOF
-
DCA
2 stops17h 26m
KLM
Tue 3/175:09 pm
DCA
-
SOF
2 stops14h 56m
KLM
Deal found 2/11$537
This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:00 am
SOF
-
BWI
2 stops18h 08m
KLM
Wed 2/252:58 pm
BWI
-
SOF
2 stops16h 07m
KLM
Deal found 2/11$563
This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:00 am
SOF
-
DCA
2 stops18h 29m
KLM
Wed 2/252:35 pm
DCA
-
SOF
2 stops16h 30m
KLM
Deal found 2/11$563
This KLM deal was found by Cheapflights users on 2/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:00 am
SOF
-
BWI
2 stops18h 19m
KLM
Tue 3/172:59 pm
BWI
-
SOF
2 stops17h 06m
KLM
Deal found 2/11$573

Find flight deals from Sofia to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Washington, D.C. (WAS). 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 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(KLM)

One-way from

$386
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$510
Provider with most accurate pricing for Sofia-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Washington, D.C. (WAS) flights.
Search Deals
From Sofia to Washington, D.C. (WAS)
Search Deals
One-way flight from Sofia to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 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 Sofia to Washington, D.C. 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 13, 2026.
Use the filters below to find and compare flights from Sofia to Washington, D.C. that are best for you.

Fly from

Sofia

Fly to

Washington, D.C.

Route

Depart

Return

Price

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 2/26

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Wed 3/11

7:50 pm-2:05 pm

1 stop12h 15m

$514

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Mon 3/9

7:00 am-5:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Tue 3/17

7:50 pm-1:55 pm

1 stop12h 05m

$516

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 3/5

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Wed 3/18

7:50 pm-2:05 pm

1 stop12h 15m

$516

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 4/9

7:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Thu 4/23

6:15 pm-2:00 pm

1 stop12h 45m

$517

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Sun 3/1

7:00 am-4:35 pm

1 stop16h 35m

Washington, D.C. Dulles Intl

Mon 3/9

7:50 pm-2:05 pm

1 stop12h 15m

$520

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 4/9

7:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Wed 4/15

12:42 pm-2:00 pm

2 stops18h 18m

$520

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Mon 5/11

7:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Tue 5/26

6:15 pm-2:00 pm

1 stop12h 45m

$525

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 5/14

7:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Sat 5/30

9:45 pm-2:00 pm

1 stop33h 15m

$527

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

Mon 3/9

7:00 am-6:26 pm

2 stops17h 26m

Washington, D.C. Reagan-National

Tue 3/17

5:09 pm-2:05 pm

2 stops14h 56m

$537

SofiaBaltimore

SOF - BWI

SOFBWI

Sofia

Mon 3/9

7:00 am-7:19 pm

2 stops18h 19m

Baltimore/Washington

Tue 3/17

2:59 pm-2:05 pm

2 stops17h 06m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 43 results
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Compare providers for flights from Sofia to Washington, D.C.

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 Sofia to Washington, D.C. in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 Sofia-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Washington, D.C. 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 Sofia-Washington, D.C. 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 Sofia to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Sofia 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 Sofia to Washington, D.C.

What is the cheapest month to book a flight from Sofia to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Sofia to Washington, D.C. (average of $482). Flying from Sofia to Washington, D.C. in November is currently the most expensive (average of $677). 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.

How much does it cost to fly round-trip from Sofia to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated February 13, 2026.
Get a feel of what it's like to fly with KLM, Austrian Airlines, and United Airlines from Sofia to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,452 reviews

Comfort

7.6

Boarding

7.8

Crew

8.4

Overall

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,452 reviews
KLM
7.7
Good
1,452 reviews

Comfort

7.6

Boarding

7.8

Crew

8.4

Overall

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Austrian Airlines
7.5
Good
896 reviews
KLM
7.7
Good
1,452 reviews

Comfort

7.6

Boarding

7.8

Crew

8.4

Overall

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,283 reviews
KLM
7.7
Good
1,452 reviews

Comfort

7.6

Boarding

7.8

Crew

8.4

Overall

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Turkish Airlines
7.3
Good
4,212 reviews
KLM
7.7
Good
1,452 reviews

Comfort

7.6

Boarding

7.8

Crew

8.4

Overall

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,782 reviews
KLM
7.7
Good
1,452 reviews

Comfort

7.6

Boarding

7.8

Crew

8.4

Overall

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Sofia to Washington, D.C.. 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 from for flights from Sofia to Washington, D.C.?

    If you book a flight to Washington, D.C. from Sofia, you will be flying from Sofia, which is the city’s only airport. Sofia (SOF) is located 4.2 mi from the center of Sofia. There are 0 flights from Sofia to Washington, D.C. per day from 5 different airlines.

  • How long is the flight from Sofia to Washington, D.C.?

    For as low as $730, KLM can have you in Washington, D.C. from Sofia in 16h 48m. Airlines will cover a distance of 4919 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Sofia to Washington, D.C. round-trip?

    Air France, at $470, was found to be the cheapest airline from Sofia to Washington, D.C..Alternate airlines to your destination round-trip include KLM and Lufthansa. These flights start at 33% lower than the current average price 3 months from now.

  • What are the most popular routes from Sofia to Washington, D.C.?

    The most popular flight routes from Sofia to Washington, D.C. are Sofia - Washington, D.C. Dulles Intl, Sofia - Washington, D.C. Reagan-National and Sofia - Baltimore/Washington.

  • Can I find deals for flights from Sofia to Washington, D.C. that include hotel bookings?

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

  • How can I find direct flights from Sofia to Washington, D.C.?

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

  • Can I find deals for business class flights from Sofia to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Sofia to Washington, D.C. 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 Sofia to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Sofia to Washington, D.C. (average of $482). Flying from Sofia to Washington, D.C. in November is currently the most expensive (average of $677). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sofia to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Sofia to Dulles Intl flights

Top 5 airlines flying from Sofia to Washington, D.C.

Discover the top 5 airlines that operate flights from Sofia to Washington, D.C.. 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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$470Average$673FlexibilityNo cancel feeOn-time77%
KLMCheapest$474Average$552FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$588Average$664FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$595Average$751FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$625Average$702FlexibilityNo cancel feeOn-time77%

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