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$382+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
Jun 3 — Jun 101
Wed 6/3
Wed 6/10
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 May 4, 2026.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:20 pm
IAD
-
SOF
1 stop23h 55m
Turkish Airlines
Wed 10/213:50 pm
SOF
-
IAD
1 stop26h 45m
Turkish Airlines
Deal found 4/29$668
This KAYAK deal was found by Cheapflights users on 5/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:20 pm
IAD
-
VAR
1 stop16h 50m
SWISS
Tue 8/259:10 pm
VAR
-
IAD
1 stop26h 35m
SWISS
Deal found 5/3$743
This FlightHub deal was found by Cheapflights users on 5/3. 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.
Thu 8/139:45 pm
IAD
-
VAR
1 stop22h 10m
Turkish Airlines
Thu 8/2710:10 pm
VAR
-
IAD
1 stop28h 40m
Turkish Airlines
Deal found 5/3$745
This FlightHub deal was found by Cheapflights users on 5/3. 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 8/129:45 pm
IAD
-
VAR
1 stop16h 35m
Turkish Airlines
Thu 8/2710:10 pm
VAR
-
IAD
1 stop20h 25m
Turkish Airlines
Deal found 5/3$770
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:20 pm
IAD
-
SOF
1 stop13h 20m
Multiple Airlines
Wed 10/216:20 am
SOF
-
IAD
2 stops17h 00m
Multiple Airlines
Deal found 4/29$771
This Justfly.com deal was found by Cheapflights users on 5/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:25 pm
IAD
-
VAR
1 stop12h 35m
Lufthansa
Tue 8/181:35 pm
VAR
-
IAD
2 stops33h 30m
Lufthansa
Deal found 5/1$771
This KAYAK deal was found by Cheapflights users on 5/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:20 pm
IAD
-
VAR
1 stop25h 00m
Turkish Airlines
Mon 8/243:45 am
VAR
-
IAD
1 stop14h 50m
Turkish Airlines
Deal found 5/3$774
This KAYAK deal was found by Cheapflights users on 5/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:20 pm
IAD
-
VAR
1 stop15h 25m
Lufthansa
Fri 8/2810:15 am
VAR
-
IAD
1 stop12h 50m
Lufthansa
Deal found 5/3$775
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:45 pm
IAD
-
SOF
2 stops19h 55m
Air Canada
Wed 10/216:20 am
SOF
-
IAD
2 stops17h 00m
Air Canada
Deal found 4/29$776
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:55 am
IAD
-
SOF
2 stops19h 15m
Multiple Airlines
Wed 8/127:00 pm
SOF
-
IAD
1 stop28h 05m
Multiple Airlines
Deal found 4/29$777
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2910:20 pm
IAD
-
SOF
1 stop13h 20m
Lufthansa
Wed 8/127:00 pm
SOF
-
IAD
1 stop28h 05m
Lufthansa
Deal found 4/29$779
This KAYAK deal was found by Cheapflights users on 5/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:25 pm
IAD
-
VAR
1 stop12h 35m
Lufthansa
Tue 8/254:00 pm
VAR
-
IAD
2 stops31h 05m
Lufthansa
Deal found 5/3$784

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 May 4, 2026.

Round-trip from

$668
(FlightHub)

One-way from

$382
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$932
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. 14% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 4, 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-8:30 am

1 stop12h 10m

Varna

Sat 8/29

10:10 pm-7:50 pm

1 stop28h 40m

$794

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 9/28

5:35 pm-12:10 pm

1 stop11h 35m

Sofia

Fri 10/2

6:20 am-4:05 pm

1 stop16h 45m

$799

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 9/9

12:35 pm-12:10 pm

2 stops16h 35m

Sofia

Mon 9/14

2:20 pm-9:23 pm

2 stops38h 03m

$804

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 7/8

6:15 pm-2:00 pm

1 stop12h 45m

Sofia

Thu 8/13

7:00 am-7:16 pm

2 stops19h 16m

$866

Washington, D.C.Burgas

IAD - BOJ

IADBOJ

Washington, D.C. Dulles Intl

Wed 8/12

5:25 pm-3:15 pm

1 stop14h 50m

Bourgas

Thu 8/27

4:00 pm-2:35 pm

1 stop29h 35m

$873

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Fri 7/31

10:20 pm-11:15 pm

1 stop17h 55m

Sofia

Fri 8/14

6:20 am-1:35 pm

1 stop14h 15m

$905

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 7/22

3:45 pm-6:40 pm

2 stops19h 55m

Sofia

Wed 8/19

4:05 pm-2:35 pm

1 stop29h 30m

$914

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 7/7

10:20 pm-11:15 pm

1 stop17h 55m

Sofia

Thu 7/23

6:10 am-7:22 am

2 stops32h 12m

$927

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 7/7

12:29 pm-2:00 pm

2 stops18h 31m

Sofia

Thu 7/23

7:00 am-5:51 pm

2 stops17h 51m

$932

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Mon 5/25

1:20 pm-8:30 am

1 stop12h 10m

Varna

Mon 6/15

10:10 pm-11:35 am

1 stop20h 25m

$941

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 41 resultsSorted by cheapest first
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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

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 13 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $689). 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.

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 May 4, 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
913 reviews

Comfort

7.3

Boarding

7.6

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

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
913 reviews
Austrian Airlines
7.6
Good
913 reviews

Comfort

7.3

Boarding

7.6

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

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
4,344 reviews
Austrian Airlines
7.6
Good
913 reviews

Comfort

7.3

Boarding

7.6

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

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
9,681 reviews
Austrian Airlines
7.6
Good
913 reviews

Comfort

7.3

Boarding

7.6

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

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
7,972 reviews
Austrian Airlines
7.6
Good
913 reviews

Comfort

7.3

Boarding

7.6

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

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 Austrian Airlines fly from Washington, D.C. Dulles Intl Airport to Bulgaria in about 11h 35m. The time it takes to get you to your destination can typically vary by up to 3h 15m. 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 - Varna or Washington, D.C. Dulles Intl - Bourgas 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 $689). 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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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 May 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$522Average$734FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$637Average$947FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$660Average$985FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$731Average$1,125FlexibilityNo cancel feeOn-time78%

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