HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$542+ Cheap flights from Sofia (SOF) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — WAS
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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.

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 November 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$542
(Air France)

Popular in

July

Cheapest in

June

Average price

$629
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
Highest demand for flights based on searches. 3% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 29, 2025.

This KLM deal was found by Cheapflights users on 11/28. 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.
Thu 12/257:00 amSOF - IAD
1 stop16h 05mMultiple Airlines
Thu 1/226:50 pmIAD - SOF
1 stop12h 05mMultiple Airlines
Deal found 11/28$604
This Air France deal was found by Cheapflights users on 11/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:10 amSOF - IAD
1 stop16h 25mAir France
Sun 1/116:50 pmIAD - SOF
1 stop12h 05mAir France
Deal found 11/28$610
This Air France deal was found by Cheapflights users on 11/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:10 amSOF - IAD
1 stop16h 25mMultiple Airlines
Wed 4/225:40 pmIAD - SOF
1 stop13h 20mMultiple Airlines
Deal found 11/28$615
This Kiwi.com deal was found by Cheapflights users on 11/28. 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 12/232:15 pmSOF - IAD
1 stop13h 00mLufthansa
Sun 1/1110:55 pmIAD - SOF
1 stop12h 25mLufthansa
Deal found 11/28$639
This Lufthansa deal was found by Cheapflights users on 11/29. 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.
Fri 12/126:10 amSOF - IAD
1 stop16h 40mLufthansa
Sun 12/2810:55 pmIAD - SOF
1 stop16h 50mLufthansa
Deal found 11/29$657
This Lufthansa deal was found by Cheapflights users on 11/29. 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.
Sat 12/132:25 pmSOF - IAD
1 stop12h 50mLufthansa
Mon 12/2910:00 pmIAD - SOF
1 stop17h 45mLufthansa
Deal found 11/29$659
This Air Canada deal was found by Cheapflights users on 11/29. 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.
Thu 12/116:00 amSOF - IAD
2 stops21h 59mAir Canada
Tue 12/3010:06 pmIAD - SOF
2 stops32h 44mAir Canada
Deal found 11/29$666
This Lufthansa deal was found by Cheapflights users on 11/29. 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.
Sun 12/1411:00 amSOF - IAD
1 stop12h 40mMultiple Airlines
Mon 12/2910:00 pmIAD - SOF
1 stop17h 45mMultiple Airlines
Deal found 11/29$668
This United Airlines deal was found by Cheapflights users on 11/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:25 amSOF - IAD
2 stops21h 50mUnited Airlines
Sun 12/289:00 amIAD - SOF
2 stops30h 45mUnited Airlines
Deal found 11/29$669
This United Airlines deal was found by Cheapflights users on 11/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:05 amSOF - IAD
1 stop16h 30mUnited Airlines
Tue 12/305:40 pmIAD - SOF
1 stop12h 35mUnited Airlines
Deal found 11/29$670
This Gotogate deal was found by Cheapflights users on 11/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2012:05 pmSOF - BWI
1 stop13h 40mBritish Airways
Thu 1/18:35 pmBWI - SOF
1 stop31h 40mBritish Airways
Deal found 11/28$1,208
This FlightHub deal was found by Cheapflights users on 11/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:25 pmSOF - DCA
2 stops36h 20mAir Canada
Thu 1/19:40 amDCA - SOF
2 stops21h 10mAir Canada
Deal found 11/29$1,247

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 November 29, 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

Fri 2/6

7:00 am-4:35 pm

1 stop16h 35m

Washington, D.C. Dulles Intl

Sun 2/8

6:50 pm-1:55 pm

1 stop12h 05m

$542

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Fri 2/6

7:00 am-7:09 pm

2 stops19h 09m

Washington, D.C. Dulles Intl

Sun 2/8

12:23 pm-2:05 pm

2 stops18h 42m

$556

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

Fri 1/23

7:00 am-10:48 pm

2 stops22h 48m

Washington, D.C. Reagan-National

Sun 1/25

11:10 am-1:55 pm

2 stops19h 45m

$556

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Fri 2/6

6:10 am-2:35 pm

1 stop15h 25m

Washington, D.C. Dulles Intl

Sun 2/8

12:40 pm-6:20 pm

2 stops22h 40m

$603

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

Mon 1/12

6:10 am-8:59 pm

2 stops21h 49m

Washington, D.C. Reagan-National

Mon 3/9

2:00 pm-1:15 pm

2 stops17h 15m

$606

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 12/25

7:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Thu 1/22

12:40 pm-1:55 pm

2 stops18h 15m

$609

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

Mon 1/12

6:10 am-8:59 pm

2 stops21h 49m

Washington, D.C. Reagan-National

Wed 3/11

3:00 pm-1:50 pm

2 stops16h 50m

$615

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Mon 1/12

6:05 am-8:15 pm

2 stops21h 10m

Washington, D.C. Dulles Intl

Tue 3/10

12:55 pm-1:45 pm

2 stops18h 50m

$625

SofiaBaltimore

SOF - BWI

SOFBWI

Sofia

Fri 1/16

6:10 am-2:11 pm

2 stops39h 01m

Baltimore/Washington

Tue 1/20

10:05 am-1:45 pm

2 stops20h 40m

$625

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Tue 12/23

2:15 pm-8:15 pm

1 stop13h 00m

Washington, D.C. Dulles Intl

Sun 1/11

10:55 pm-6:20 pm

1 stop12h 25m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/28

Showing 1-10 of 37 results
1
2
3
4

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 November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 December is currently the most expensive (average of $614). 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.

What is the cheapest time of day to fly from SOF to WAS?

Find hourly flight availability from Sofia to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 29, 2025.

When flying from Sofia to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 21% versus a flight in the evening.

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 November 29, 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.
KLM
7.7
Good
1,424 reviews

Overall

7.7

Food

7.2

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,424 reviews
KLM
7.7
Good
1,424 reviews

Overall

7.7

Food

7.2

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Austrian Airlines
7.6
Good
875 reviews
KLM
7.7
Good
1,424 reviews

Overall

7.7

Food

7.2

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,057 reviews
KLM
7.7
Good
1,424 reviews

Overall

7.7

Food

7.2

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Turkish Airlines
7.3
Good
4,069 reviews
KLM
7.7
Good
1,424 reviews

Overall

7.7

Food

7.2

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,598 reviews
KLM
7.7
Good
1,424 reviews

Overall

7.7

Food

7.2

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 $598, Air France can have you in Washington, D.C. from Sofia in 12h 40m. 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 $444, 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 32% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Sofia to Washington, D.C. one-way?

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $660. However, be on the lookout for offers from Air Canada and Austrian Airlines, as they are both options that can get you from Sofia to Washington, D.C. for a low price.

  • 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. Reagan-National, Sofia - Washington, D.C. Dulles Intl 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, 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 December is currently the most expensive (average of $614). 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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Falls Church
Bowie
Largo
McLean
Clinton

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 November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$444Average$601FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$533Average$680FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$572Average$648FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$588Average$642FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$621Average$700FlexibilityNo 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.