Washington, D.C.

$354+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — WAS
Jan 29 — Feb 51
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sofia to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amSOF - IAD
1 stop15h 35mLufthansa
Thu 1/225:40 pmIAD - SOF
1 stop12h 35mLufthansa
Deal found 12/28$808
This KLM deal was found by Cheapflights users on 12/28. 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 12/297:00 amSOF - IAD
1 stop16h 05mMultiple Airlines
Wed 1/286:50 pmIAD - SOF
1 stop12h 15mMultiple Airlines
Deal found 12/28$811
This Kiwi.com deal was found by Cheapflights users on 12/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amSOF - IAD
1 stop15h 35mMultiple Airlines
Thu 1/226:05 pmIAD - SOF
2 stops16h 55mMultiple Airlines
Deal found 12/28$817
This KLM deal was found by Cheapflights users on 12/28. 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 12/297:00 amSOF - IAD
1 stop16h 05mKLM
Wed 1/282:15 pmIAD - SOF
2 stops16h 50mKLM
Deal found 12/28$822
This KLM deal was found by Cheapflights users on 12/28. 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 12/297:00 amSOF - BWI
2 stops16h 56mKLM
Wed 1/283:38 pmBWI - SOF
2 stops15h 27mKLM
Deal found 12/28$832
This Lufthansa deal was found by Cheapflights users on 12/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:55 amSOF - IAD
1 stop13h 45mAustrian Airlines
Thu 12/176:15 pmIAD - SOF
1 stop16h 45mAustrian Airlines
Deal found 12/29$843
This Air Canada deal was found by Cheapflights users on 12/28. 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.
Mon 12/291:45 pmSOF - DCA
2 stops15h 11mAir Canada
Wed 1/284:15 pmDCA - SOF
2 stops19h 05mAir Canada
Deal found 12/28$847
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Tue 12/306:05 amSOF - IAD
2 stops15h 30mUnited Airlines
Thu 1/2212:40 pmIAD - SOF
2 stops18h 10mUnited Airlines
Deal found 12/28$850
This Cheapflightsfares deal was found by Cheapflights users on 12/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:45 pmSOF - IAD
2 stops26h 50mAustrian Airlines
Wed 1/286:20 pmIAD - SOF
2 stops16h 40mAustrian Airlines
Deal found 12/29$887
This CheapOair deal was found by Cheapflights users on 12/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:05 amSOF - IAD
2 stops15h 30mMultiple Airlines
Thu 12/179:45 amIAD - SOF
2 stops19h 05mMultiple Airlines
Deal found 12/29$934
This Air Canada deal was found by Cheapflights users on 12/29. 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.
Mon 12/292:20 pmSOF - DCA
2 stops25h 35mMultiple Airlines
Wed 1/2811:05 amDCA - SOF
2 stops24h 15mMultiple Airlines
Deal found 12/29$1,443
This Air Canada deal was found by Cheapflights users on 12/29. 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 12/306:05 amSOF - DCA
2 stops20h 40mMultiple Airlines
Thu 12/1711:00 amDCA - SOF
2 stops17h 50mMultiple Airlines
Deal found 12/29$1,516

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 December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$547
(KLM)

One-way from

$354
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$722
Provider with most accurate pricing for Sofia-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Sofia-Washington, D.C. (WAS) flights.
From Sofia to Washington, D.C. (WAS)
One-way flight from Sofia to Washington, D.C. (WAS)
Highest demand for flights based on searches. 3% potential increase in price ($22 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 30, 2025.
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 1/15

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Wed 1/28

6:50 pm-2:05 pm

1 stop12h 15m

$547

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Tue 1/20

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Tue 3/3

6:50 pm-1:55 pm

1 stop12h 05m

$547

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

6:10 pm-2:00 pm

1 stop12h 50m

$551

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 1/29

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Sun 5/17

5:40 pm-2:00 pm

1 stop13h 20m

$552

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 1/15

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Wed 1/28

2:15 pm-2:05 pm

2 stops16h 50m

$558

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

Thu 1/15

7:00 am-6:29 pm

2 stops18h 29m

Washington, D.C. Reagan-National

Wed 1/28

1:40 pm-2:05 pm

2 stops17h 25m

$562

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Tue 2/3

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Sat 4/11

5:40 pm-2:00 pm

1 stop13h 20m

$564

SofiaBaltimore

SOF - BWI

SOFBWI

Sofia

Thu 1/15

7:00 am-7:07 pm

2 stops19h 07m

Baltimore/Washington

Wed 1/28

3:38 pm-2:05 pm

2 stops15h 27m

$568

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

Wed 1/28

9:00 pm-10:03 pm

2 stops32h 03m

Washington, D.C. Reagan-National

Sat 1/31

5:45 pm-4:20 pm

2 stops39h 35m

$644

SofiaBaltimore

SOF - BWI

SOFBWI

Sofia

Tue 2/3

7:10 am-7:07 pm

2 stops18h 57m

Baltimore/Washington

Sat 4/11

12:25 pm-2:00 pm

2 stops18h 35m

$671

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 24 results
1
2
3

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 December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 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 Sofia-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sofia-Washington, D.C. flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, October is the cheapest month in which you can book a flight from Sofia to Washington, D.C. (average of $487). 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 December 30, 2025.
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.

Overall

7.7

Crew

8.4

Food

7.2

Comfort

7.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Overall

7.7

Crew

8.4

Food

7.2

Comfort

7.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Overall

7.7

Crew

8.4

Food

7.2

Comfort

7.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Overall

7.7

Crew

8.4

Food

7.2

Comfort

7.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Overall

7.7

Crew

8.4

Food

7.2

Comfort

7.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Overall

7.7

Crew

8.4

Food

7.2

Comfort

7.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 $551, KLM can have you in Washington, D.C. from Sofia in 15h 35m. Airlines will cover a distance of 4931 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?

    KLM, at $520, was found to be the cheapest airline from Sofia to Washington, D.C..Alternate airlines to your destination round-trip include Air France and Lufthansa. These flights start at 21% lower than the current average price 3 months from now.

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

  • 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, October is the cheapest month in which you can book a flight from Sofia to Washington, D.C. (average of $487). 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
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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.

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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$520Average$610FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$533Average$673FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$585Average$659FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$588Average$748FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$625Average$702FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.