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$287+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
1 adult, Economy
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Cheap 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 26, 2025.

Round-trip from

$660
(Air Canada)

One-way from

$287
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,089
From Washington, D.C. Dulles Intl to Bulgaria
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One-way flight from Washington, D.C. Dulles Intl to Bulgaria
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Highest demand for flights based on searches. 18% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 26, 2025.

This Air Canada deal was found by Cheapflights users on 6/25. 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.
Fri 11/74:30 pmIAD - SOF
2 stops18h 45mAir Canada
Tue 11/116:00 amSOF - IAD
2 stops17h 21mAir Canada
Deal found 6/25$660
This FlightHub deal was found by Cheapflights users on 6/26. 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.
Mon 8/181:30 pmIAD - SOF
1 stop18h 15mTurkish Airlines
Mon 9/19:25 amSOF - IAD
1 stop33h 20mTurkish Airlines
Deal found 6/26$661
This United Airlines deal was found by Cheapflights users on 6/26. 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 12/2610:05 pmIAD - SOF
1 stop17h 40mUnited Airlines
Fri 1/91:55 pmSOF - IAD
1 stop13h 10mUnited Airlines
Deal found 6/26$666
This Gotogate deal was found by Cheapflights users on 6/26. 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 8/1810:20 amIAD - SOF
2 stops18h 40mMultiple Airlines
Mon 9/13:30 pmSOF - IAD
1 stop31h 45mMultiple Airlines
Deal found 6/26$669
This FlightHub deal was found by Cheapflights users on 6/24. 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.
Tue 8/1210:20 pmIAD - SOF
1 stop13h 20mLufthansa
Thu 8/216:15 amSOF - IAD
1 stop16h 35mLufthansa
Deal found 6/24$673
This British Airways deal was found by Cheapflights users on 6/25. 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.
Tue 8/2610:40 pmIAD - SOF
1 stop15h 00mBritish Airways
Wed 9/109:30 pmSOF - IAD
1 stop25h 30mBritish Airways
Deal found 6/25$677
This FlightHub deal was found by Cheapflights users on 6/24. 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.
Tue 9/210:20 pmIAD - VAR
1 stop15h 25mLufthansa
Tue 9/309:15 amVAR - IAD
1 stop13h 35mLufthansa
Deal found 6/24$679
This SWISS deal was found by Cheapflights users on 6/26. 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.
Mon 8/118:45 pmIAD - SOF
1 stop30h 20mSWISS
Mon 9/293:30 pmSOF - IAD
1 stop31h 45mSWISS
Deal found 6/26$685
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:25 pmIAD - VAR
1 stop12h 20mAustrian Airlines
Sat 10/189:35 pmVAR - IAD
1 stop24h 00mAustrian Airlines
Deal found 6/25$749
This Austrian Airlines deal was found by Cheapflights users on 6/26. 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.
Wed 8/135:10 pmIAD - SOF
2 stops35h 30mAustrian Airlines
Sun 9/286:55 pmSOF - IAD
1 stop26h 40mAustrian Airlines
Deal found 6/26$823
This oojo deal was found by Cheapflights users on 6/24. 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.
Sat 7/198:31 pmIAD - SOF
2 stops32h 29mITA Airways
Wed 8/1312:55 pmSOF - IAD
2 stops54h 07mITA Airways
Deal found 6/24$835
This Justfly.com deal was found by Cheapflights users on 6/24. 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.
Fri 9/265:25 pmIAD - BOJ
1 stop14h 50mMultiple Airlines
Tue 9/309:25 amBOJ - IAD
1 stop13h 25mMultiple Airlines
Deal found 6/24$844

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 26, 2025.
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

Dulles Intl

Fly to

Bulgaria

Route

Depart

Return

Price

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Fri 11/7

4:30 pm-6:15 pm

2 stops18h 45m

Sofia

Tue 11/11

6:00 am-4:21 pm

2 stops17h 21m

$660

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 8/18

1:30 pm-2:45 pm

1 stop18h 15m

Sofia

Mon 9/1

9:25 am-11:45 am

1 stop33h 20m

$661

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 8/18

10:20 am-12:00 pm

2 stops18h 40m

Sofia

Mon 9/1

3:30 pm-4:15 pm

1 stop31h 45m

$669

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 8/12

10:20 pm-6:40 pm

1 stop13h 20m

Sofia

Thu 8/21

6:15 am-3:50 pm

1 stop16h 35m

$673

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 8/11

5:40 pm-12:00 pm

1 stop11h 20m

Sofia

Wed 8/20

6:15 am-3:50 pm

1 stop16h 35m

$674

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 8/26

10:40 pm-8:40 pm

1 stop15h 00m

Sofia

Wed 9/10

9:30 pm-4:00 pm

1 stop25h 30m

$677

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Tue 9/2

10:20 pm-8:45 pm

1 stop15h 25m

Varna

Tue 9/30

9:15 am-3:50 pm

1 stop13h 35m

$679

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 8/11

8:45 pm-10:05 am

1 stop30h 20m

Sofia

Mon 9/29

3:30 pm-4:15 pm

1 stop31h 45m

$685

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Sun 8/24

5:25 pm-12:45 pm

1 stop12h 20m

Varna

Sat 10/18

9:35 pm-2:35 pm

1 stop24h 00m

$749

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 8/13

5:10 pm-11:40 am

2 stops35h 30m

Sofia

Sun 9/28

6:55 pm-2:35 pm

1 stop26h 40m

$823

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 29 results
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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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria (average of $632). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $1,192). 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 IAD to BG?

Find hourly flight availability from Dulles Intl to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 26, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Bulgaria, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 26, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Bulgaria, such as Austrian Airlines, Air France, and SWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
805 reviews

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
805 reviews
Austrian Airlines
7.6
Good
805 reviews

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Air France
7.5
Good
1,470 reviews
Austrian Airlines
7.6
Good
805 reviews

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,649 reviews
Austrian Airlines
7.6
Good
805 reviews

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
United Airlines
7.4
Good
8,838 reviews
Austrian Airlines
7.6
Good
805 reviews

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Turkish Airlines
7.3
Good
3,876 reviews
Austrian Airlines
7.6
Good
805 reviews

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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.

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

    One-way options have recently been found by users for as low as $415 on Turkish Airlines. Other airlines that offer cheap prices include Aer Lingus from $471 and Austrian Airlines from $500 one-way.

  • 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria (average of $632). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $1,192). 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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Top 6 airlines flying from Dulles Intl to Bulgaria

Discover the top 6 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 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$552Average$873FlexibilityNo cancel feeOn-time77%
SWISSCheapest$552Average$1,049FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$667Average$1,069FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$679Average$889FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$706Average$1,007FlexibilityNo cancel feeOn-time76%
ITA AirwaysCheapest$879Average$1,159FlexibilityNo cancel feeOn-time81%

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