Washington, D.C.

$519+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — WAS
may. 5 — may. 121
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Cheapflights Tip: The best prices from Sofia to Washington, D.C. are usually found in March or October, booked 90 days in advance, depart on a Monday or Thursday and return on a Wednesday

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 abril 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$519
(KLM)

Popular in

June

Cheapest in

March

Average price

$688
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)
Highest demand for flights based on searches. 10% potential increase in price ($80 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Average for round-trip flights in April 2025

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 abril 30, 2025.

This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/177:00 amSOF - IAD
1 stop15h 35mMultiple Airlines
vie. 10/176:30 pmIAD - SOF
1 stop12h 30mMultiple Airlines
Deal found 4/29$519
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/167:00 amSOF - IAD
1 stop15h 35mKLM
sáb. 11/85:35 pmIAD - SOF
1 stop13h 25mKLM
Deal found 4/29$525
This Air France deal was found by Cheapflights users on 4/29. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/117:00 amSOF - IAD
1 stop19h 15mAir France
mié. 7/166:30 pmIAD - SOF
1 stop12h 30mAir France
Deal found 4/29$576
This British Airways deal was found by Cheapflights users on 4/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/98:00 pmSOF - IAD
2 stops26h 00mBritish Airways
mar. 7/1510:40 pmIAD - SOF
1 stop15h 00mBritish Airways
Deal found 4/29$579
This British Airways deal was found by Cheapflights users on 4/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/179:30 pmSOF - BWI
1 stop29h 05mBritish Airways
mié. 10/159:20 pmBWI - SOF
1 stop33h 10mBritish Airways
Deal found 4/29$585
This United Airlines deal was found by Cheapflights users on 4/29. 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.
mié. 9/176:15 amSOF - IAD
2 stops21h 50mUnited Airlines
sáb. 10/185:40 pmIAD - SOF
1 stop11h 20mUnited Airlines
Deal found 4/29$617
This United Airlines deal was found by Cheapflights users on 4/29. 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.
mié. 5/286:15 amSOF - DCA
2 stops22h 38mUnited Airlines
lun. 9/13:00 pmDCA - SOF
2 stops14h 00mUnited Airlines
Deal found 4/29$617
This Air Canada deal was found by Cheapflights users on 4/29. 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.
jue. 10/166:15 amSOF - IAD
2 stops36h 01mAir Canada
mié. 11/59:55 amIAD - SOF
2 stops20h 40mAir Canada
Deal found 4/29$630
This Air Canada deal was found by Cheapflights users on 4/29. 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.
jue. 5/296:15 amSOF - DCA
2 stops22h 38mAir Canada
lun. 9/16:00 amDCA - SOF
2 stops24h 00mAir Canada
Deal found 4/29$630
This ITA Airways deal was found by Cheapflights users on 4/29. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/136:00 pmSOF - IAD
1 stop27h 40mITA Airways
jue. 9/114:30 pmIAD - SOF
1 stop17h 40mITA Airways
Deal found 4/29$637
This Lufthansa deal was found by Cheapflights users on 4/29. 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.
lun. 7/76:00 amSOF - IAD
1 stop16h 20mLufthansa
mié. 9/1010:20 pmIAD - SOF
1 stop17h 40mLufthansa
Deal found 4/29$640
This Austrian Airlines deal was found by Cheapflights users on 4/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/26:55 pmSOF - IAD
1 stop26h 40mAustrian Airlines
vie. 9/55:25 pmIAD - SOF
1 stop17h 45mAustrian Airlines
Deal found 4/29$646

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 abril 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

mié. 9/17

7:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

vie. 10/17

6:30 pm-2:00 pm

1 stop12h 30m

$519

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

jue. 10/16

7:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

sáb. 11/8

5:35 pm-2:00 pm

1 stop13h 25m

$525

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

mié. 6/11

7:00 am-7:15 pm

1 stop19h 15m

Washington, D.C. Dulles Intl

mié. 7/16

6:30 pm-2:00 pm

1 stop12h 30m

$576

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

lun. 6/9

8:00 pm-3:00 pm

2 stops26h 00m

Washington, D.C. Dulles Intl

mar. 7/15

10:40 pm-8:40 pm

1 stop15h 00m

$579

SofiaBaltimore

SOF - BWI

SOFBWI

Sofia

mié. 9/17

9:30 pm-7:35 pm

1 stop29h 05m

Baltimore/Washington

mié. 10/15

9:20 pm-1:30 pm

1 stop33h 10m

$585

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

mié. 7/9

9:30 pm-3:58 pm

2 stops25h 28m

Washington, D.C. Reagan-National

mié. 9/10

7:45 pm-1:30 pm

2 stops34h 45m

$590

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

mié. 9/17

6:15 am-9:05 pm

2 stops21h 50m

Washington, D.C. Dulles Intl

mar. 10/14

5:40 pm-6:40 pm

1 stop18h 00m

$617

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

mié. 5/28

6:15 am-9:53 pm

2 stops22h 38m

Washington, D.C. Reagan-National

lun. 9/1

3:00 pm-12:00 pm

2 stops14h 00m

$617

SofiaWashington, D.C.

SOF - DCA

SOFDCA

Sofia

lun. 7/7

6:15 am-10:18 am

2 stops35h 03m

Washington, D.C. Reagan-National

mar. 9/9

4:35 pm-6:40 pm

2 stops19h 05m

$628

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

jue. 10/16

6:15 am-11:16 am

2 stops36h 01m

Washington, D.C. Dulles Intl

mié. 11/5

9:55 am-1:35 pm

2 stops20h 40m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 31 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 April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 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 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.

How far ahead should I book a flight from Sofia to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Sofia to Washington, D.C.. Price data was last updated on April 25, 2025.

The best time to book flights from Sofia to Washington, D.C. is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Sofia to Washington, D.C. (average of $309). Flying from Sofia to Washington, D.C. in June is currently the most expensive (average of $373). 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 abril 30, 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 10% versus a flight in the morning.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 abril 30, 2025.
Get a feel of what it's like to fly with KLM, LOT and Austrian Airlines from Sofia to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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 3 different airlines.

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

    KLM, at $525, was found to be the cheapest airline from Sofia to Washington, D.C..Alternate airlines to your destination round-trip include Air France and British Airways. These flights start at 26% 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 Qatar Airways, with whom users have recently found tickets for as low as $572. However, be on the lookout for offers from KLM and Lufthansa, 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.?

  • 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, August is the cheapest month in which you can book a flight from Sofia to Washington, D.C. (average of $309). Flying from Sofia to Washington, D.C. in June is currently the most expensive (average of $373). 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 Sofia?

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Alexandria
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Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sofia to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Sofia to Washington, D.C.

Discover the top 3 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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$572Average$806FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$584Average$659FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$614Average$665FlexibilityNo cancel feeOn-time77%

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