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$279+ Cheap flights from Dulles Intl (IAD) to Bulgaria

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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
1 adult, Economy
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Cheap flight deals from Dulles Intl to Bulgaria

Cheapest flights from Dulles Intl to Bulgaria
Explore the most affordable flight options available from Dulles Intl to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.

This Gotogate deal was found by Cheapflights users on 6/17. 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.
Tue 8/189:55 am
IAD
-
SOF
2 stops19h 15m
Multiple Airlines
Tue 11/107:05 pm
SOF
-
IAD
1 stop32h 00m
Multiple Airlines
Deal found 6/17$785
This Gotogate deal was found by Cheapflights users on 6/19. 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.
Mon 9/219:55 am
IAD
-
SOF
2 stops19h 15m
Multiple Airlines
Mon 10/57:25 pm
SOF
-
IAD
1 stop31h 00m
Multiple Airlines
Deal found 6/19$788
This British Airways deal was found by Cheapflights users on 6/17. 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.
Fri 12/49:45 pm
IAD
-
SOF
1 stop32h 15m
British Airways
Mon 12/145:25 pm
SOF
-
IAD
1 stop29h 10m
British Airways
Deal found 6/17$790
This Gotogate deal was found by Cheapflights users on 6/19. 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.
Sun 8/98:20 pm
IAD
-
SOF
1 stop11h 35m
SWISS
Mon 8/243:40 pm
SOF
-
IAD
1 stop32h 05m
SWISS
Deal found 6/19$791
This Gotogate deal was found by Cheapflights users on 6/18. 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.
Tue 8/1110:20 pm
IAD
-
SOF
1 stop17h 55m
Lufthansa
Tue 8/256:10 am
SOF
-
IAD
1 stop20h 15m
Lufthansa
Deal found 6/18$793
This oojo deal was found by Cheapflights users on 6/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:20 pm
IAD
-
SOF
1 stop13h 20m
Lufthansa
Mon 8/247:25 pm
SOF
-
IAD
1 stop31h 00m
Lufthansa
Deal found 6/17$794
This Turkish Airlines deal was found by Cheapflights users on 6/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:20 pm
IAD
-
VAR
1 stop25h 10m
Turkish Airlines
Fri 8/2810:20 pm
VAR
-
IAD
1 stop20h 15m
Turkish Airlines
Deal found 6/15$794
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Fri 11/273:34 pm
IAD
-
SOF
2 stops14h 41m
United Airlines
Fri 12/116:25 am
SOF
-
IAD
2 stops16h 55m
United Airlines
Deal found 6/19$795
This oojo deal was found by Cheapflights users on 6/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:20 pm
IAD
-
SOF
1 stop17h 55m
Lufthansa
Tue 8/186:40 pm
SOF
-
IAD
1 stop28h 25m
Lufthansa
Deal found 6/18$800
This Gotogate deal was found by Cheapflights users on 6/16. 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.
Sun 8/93:45 pm
IAD
-
SOF
2 stops19h 25m
Multiple Airlines
Mon 8/247:25 pm
SOF
-
IAD
1 stop31h 00m
Multiple Airlines
Deal found 6/16$802
This Booking.com deal was found by Cheapflights users on 6/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:20 pm
IAD
-
SOF
1 stop12h 25m
Turkish Airlines
Sun 9/133:50 pm
SOF
-
IAD
1 stop26h 45m
Turkish Airlines
Deal found 6/20$803
This United deal was found by Cheapflights users on 6/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:35 pm
IAD
-
SOF
2 stops16h 35m
Multiple Airlines
Mon 8/243:40 pm
SOF
-
IAD
1 stop32h 05m
Multiple Airlines
Deal found 6/17$804

Find flight deals from Dulles Intl to Bulgaria

Keep the following information in mind while searching for Dulles Intl to Bulgaria flight deals. Data was last updated June 20, 2026.

Round-trip from

$785
(Gotogate)

One-way from

$279
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$975
From Washington, D.C. Dulles Intl to Bulgaria
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Bulgaria
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Bulgaria 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 June 20, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Thu 8/13

1:20 pm-9:30 pm

1 stop25h 10m

Varna

Fri 8/28

10:20 pm-11:35 am

1 stop20h 15m

$794
Quickest round-trip

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 8/17

5:30 pm-12:10 pm

1 stop11h 40m

Sofia

Tue 8/25

6:10 am-3:30 pm

2 stops16h 20m

$823

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 9/8

12:26 pm-2:00 pm

2 stops18h 34m

Sofia

Tue 9/22

7:00 am-3:35 pm

1 stop15h 35m

$834

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Thu 8/6

10:31 am-12:10 pm

2 stops18h 39m

Sofia

Thu 8/20

6:10 am-4:05 pm

2 stops16h 55m

$875

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Thu 8/13

1:20 pm-8:30 am

1 stop12h 10m

Varna

Mon 8/31

9:20 am-7:50 pm

1 stop17h 30m

$879

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Thu 8/13

9:45 pm-9:10 am

1 stop28h 25m

Varna

Thu 8/27

10:10 pm-11:35 am

1 stop20h 25m

$904

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Wed 8/5

10:20 pm-12:45 pm

2 stops31h 25m

Varna

Fri 8/14

10:15 am-4:05 pm

1 stop12h 50m

$907

Washington, D.C.Burgas

IAD - BOJ

IADBOJ

Washington, D.C. Dulles Intl

Mon 8/17

9:55 am-6:20 pm

2 stops25h 25m

Bourgas

Sun 8/30

9:50 am-7:25 pm

1 stop16h 35m

$908

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Wed 8/5

10:20 pm-9:00 am

1 stop27h 40m

Varna

Wed 8/12

9:30 pm-7:25 pm

1 stop28h 55m

$916

Washington, D.C.Burgas

IAD - BOJ

IADBOJ

Washington, D.C. Dulles Intl

Mon 8/17

3:25 pm-6:20 pm

1 stop19h 55m

Bourgas

Tue 9/1

7:05 pm-4:05 pm

1 stop28h 00m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 42 resultsSorted by cheapest first
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5

Best time to book a flight from Dulles Intl to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Bulgaria

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria (average of $465). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $714). 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 far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria?

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Bulgaria may vary depending on when you book. For the best chance of a lower fare, look to book 12 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated June 20, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Bulgaria, such as Austrian Airlines,Turkish Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
937 reviews

Crew

8.1

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Austrian Airlines
7.6
Good
937 reviews
Austrian Airlines
7.6
Good
937 reviews

Crew

8.1

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Turkish Airlines
7.4
Good
4,409 reviews
Austrian Airlines
7.6
Good
937 reviews

Crew

8.1

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
United Airlines
7.4
Good
9,868 reviews
Austrian Airlines
7.6
Good
937 reviews

Crew

8.1

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Lufthansa
6.8
Okay
8,086 reviews
Austrian Airlines
7.6
Good
937 reviews

Crew

8.1

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Bulgaria?

    Airlines like Turkish Airlines, United Airlines, and KLM fly from Washington, D.C. Dulles Intl Airport to Bulgaria in about 11h 40m. The time it takes to get you to your destination can typically vary by up to 13h 30m. Washington, D.C. Dulles Intl Airport and Bulgaria are separated by a distance of 4931 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Bulgaria?

    Most travelers choose Washington, D.C. Dulles Intl - Sofia, Washington, D.C. Dulles Intl - Bourgas or Washington, D.C. Dulles Intl - Varna when deciding on the best route from Washington, D.C. Dulles Intl Airport to Bulgaria.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Bulgaria 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 Washington, D.C. Dulles Intl Airport to Bulgaria?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria (average of $465). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $714). 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

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Alternative routes for Dulles Intl to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
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Baltimore to Gatwick flights
Baltimore to Charles de Gaulle flights
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Reagan-National to Charles de Gaulle flights
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Dulles Intl to Amsterdam flights
Baltimore to Keflavik Intl flights
Dulles Intl to Vicenza flights
Baltimore to Athens flights
Reagan-National to Madrid flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Munich flights
Baltimore to Madrid flights
Baltimore to Istanbul flights
Dulles Intl to Luton flights
Reagan-National to Keflavik Intl flights
Baltimore to Frankfurt flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Bruxelles-National flights
Dulles Intl to Copenhagen flights
Dulles Intl to Zurich flights
Baltimore to Lisbon flights
Reagan-National to Edinburgh flights
Dulles Intl to Vienna flights
Reagan-National to Lisbon flights
Baltimore to Dublin flights
Baltimore to Edinburgh flights
Dulles Intl to Sabiha Gokcen flights

Top 4 airlines flying from Dulles Intl to Bulgaria

Discover the top 4 airlines that operate flights from Dulles Intl to Bulgaria. 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 June 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$522Average$733FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$650Average$987FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$667Average$988FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$809Average$1,265FlexibilityNo cancel feeOn-time78%

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