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Dulles Intl

$371+ Cheap flights from Sofia (SOF) to Dulles Intl (IAD)

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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — IAD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Sofia to Washington, D.C. Dulles Intl are usually found in November or February, booked 14 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Sofia to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Dulles Intl (IAD). 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$528
(British Airways)

One-way from

$371
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$601
Provider with most accurate pricing for Sofia-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Sofia-Washington, D.C. Dulles Intl flights.
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From Sofia to Washington, D.C. Dulles Intl
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One-way flight from Sofia to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Sofia to Dulles Intl

Cheapest flights from Sofia to Dulles Intl
Explore the most affordable flight options available from Sofia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This British Airways deal was found by Cheapflights users on 3/27. 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.
Sun 5/49:10 pmSOF - IAD
1 stop25h 35mBritish Airways
Sat 5/1710:45 pmIAD - SOF
1 stop14h 35mBritish Airways
Deal found 3/27$528
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 5/156:15 amSOF - IAD
2 stops21h 53mUnited Airlines
Fri 8/1510:20 pmIAD - SOF
1 stop17h 40mUnited Airlines
Deal found 3/27$588
This Mytrip deal was found by Cheapflights users on 3/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:00 amSOF - IAD
1 stop20h 25mLufthansa
Mon 9/1510:20 pmIAD - SOF
1 stop13h 20mLufthansa
Deal found 3/28$591
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/93:35 pmSOF - IAD
1 stop27h 10mTurkish Airlines
Wed 4/161:30 pmIAD - SOF
1 stop23h 55mTurkish Airlines
Deal found 3/28$606
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/412:25 pmSOF - IAD
1 stop33h 10mMultiple Airlines
Sat 5/1710:20 pmIAD - SOF
1 stop17h 40mMultiple Airlines
Deal found 3/27$607
This OneTravel deal was found by Cheapflights users on 3/27. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/46:00 amSOF - IAD
2 stops36h 14mAir Canada
Sat 5/173:27 pmIAD - SOF
2 stops36h 48mAir Canada
Deal found 3/27$652
This Austrian Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 5/124:05 pmSOF - IAD
2 stops30h 10mAustrian Airlines
Fri 8/1510:20 pmIAD - SOF
2 stops36h 50mAustrian Airlines
Deal found 3/27$662
This SWISS deal was found by Cheapflights users on 3/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2012:45 pmSOF - IAD
2 stops34h 30mSWISS
Mon 8/2510:20 pmIAD - SOF
2 stops28h 45mSWISS
Deal found 3/28$686
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/288:15 pmSOF - IAD
1 stop30h 05mAmerican Airlines
Tue 4/810:40 pmIAD - SOF
1 stop15h 00mAmerican Airlines
Deal found 3/27$1,007
This Emirates deal was found by Cheapflights users on 3/27. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/82:05 amSOF - IAD
1 stop37h 35mEmirates
Wed 4/1610:55 amIAD - SOF
1 stop31h 10mEmirates
Deal found 3/27$1,377

Cheapflights Fare Finder

Customize your flight search to find flights from Sofia to Dulles Intl 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 March 28, 2025.
Use the filters below to find and compare flights from Sofia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Sofia

Fly to

Dulles Intl

Route

Depart

Return

Price

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Sun 5/4

9:10 pm-3:45 pm

1 stop25h 35m

Washington, D.C. Dulles Intl

Sat 5/17

10:45 pm-8:20 pm

1 stop14h 35m

$528

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Thu 5/15

6:15 am-9:08 pm

2 stops21h 53m

Washington, D.C. Dulles Intl

Fri 8/15

10:20 pm-11:00 pm

1 stop17h 40m

$588

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Tue 4/15

6:00 am-7:25 pm

1 stop20h 25m

Washington, D.C. Dulles Intl

Mon 9/15

10:20 pm-6:40 pm

1 stop13h 20m

$591

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Wed 4/9

3:35 pm-11:45 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 4/16

1:30 pm-8:25 pm

1 stop23h 55m

$606

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Sun 5/4

12:25 pm-2:35 pm

1 stop33h 10m

Washington, D.C. Dulles Intl

Sat 5/17

10:20 pm-11:00 pm

1 stop17h 40m

$607

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Sun 5/4

6:00 am-11:14 am

2 stops36h 14m

Washington, D.C. Dulles Intl

Sat 5/17

3:27 pm-11:15 am

2 stops36h 48m

$652

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Mon 5/12

4:05 pm-3:15 pm

2 stops30h 10m

Washington, D.C. Dulles Intl

Fri 8/15

10:20 pm-6:10 pm

2 stops36h 50m

$662

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Sun 7/20

12:45 pm-4:15 pm

2 stops34h 30m

Washington, D.C. Dulles Intl

Mon 8/25

10:20 pm-10:05 am

2 stops28h 45m

$686

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Tue 4/8

2:05 am-8:40 am

1 stop37h 35m

Washington, D.C. Dulles Intl

Wed 4/16

10:55 am-1:05 am

1 stop31h 10m

$1,377

SofiaWashington, D.C.

SOF - IAD

SOFIAD

Sofia

Wed 5/21

1:35 pm-3:20 pm

2 stops32h 45m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 19 results
1
2

Compare providers for flights from Sofia to Dulles Intl

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 Dulles Intl in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 Sofia-Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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 Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Sofia to Dulles Intl. Price data was last updated on March 21, 2025.

Booking 14 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sofia to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Sofia to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sofia to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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 IAD?

Find hourly flight availability from Sofia to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

It’s typically best to fly out from Sofia to Washington, D.C. Dulles Intl Airport in the evening. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated March 28, 2025.
Emirates
8.0
Very good
3,190 reviews

Entertainment

8.2

Overall

8.0

Comfort

8.0

Food

7.8

Boarding

8.1

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.0
Very good
3,190 reviews
Emirates
8.0
Very good
3,190 reviews

Entertainment

8.2

Overall

8.0

Comfort

8.0

Food

7.8

Boarding

8.1

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
KLM
7.8
Good
1,321 reviews
Emirates
8.0
Very good
3,190 reviews

Entertainment

8.2

Overall

8.0

Comfort

8.0

Food

7.8

Boarding

8.1

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Austrian Airlines
7.5
Good
769 reviews
Emirates
8.0
Very good
3,190 reviews

Entertainment

8.2

Overall

8.0

Comfort

8.0

Food

7.8

Boarding

8.1

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
SWISS
7.5
Good
1,570 reviews
Emirates
8.0
Very good
3,190 reviews

Entertainment

8.2

Overall

8.0

Comfort

8.0

Food

7.8

Boarding

8.1

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Qatar Airways
7.4
Good
3,538 reviews
Emirates
8.0
Very good
3,190 reviews

Entertainment

8.2

Overall

8.0

Comfort

8.0

Food

7.8

Boarding

8.1

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Related info for your journey

Find useful and relevant information for your journey from Sofia to Dulles Intl. 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. Dulles Intl?

    Sofia (SOF), located 4.2 mi from the city center, is the airport you fly out of when you book flights from Sofia to Washington, D.C. Dulles Intl. 3 airlines have flights from Sofia to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Sofia to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

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

    Currently priced at $528, British Airways will fly you from Sofia to Washington, D.C. Dulles Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from $588 and $591, respectively. These flights start at 23% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Sofia to Washington, D.C. Dulles Intl Airport are Qatar Airways ($563), American Airlines ($597), and Lufthansa ($610).

  • Can I find deals for flights from Sofia to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Sofia to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sofia to Dulles Intl?

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

  • Can I find deals for business class flights from Sofia to Dulles Intl?

    Yes. Cheapflights offers flight deals from Sofia to Dulles Intl 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. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Sofia to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sofia to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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?

Book flights to Sofia if you plan to visit one of these locations
Arlington
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Fairfax
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Alternative routes for Sofia to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Sofia to Dulles Intl

Discover the top 3 airlines that operate flights from Sofia to Dulles Intl. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$572Average$795FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$588Average$687FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$619Average$655FlexibilityNo cancel feeOn-time77%
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