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$307+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$594
(FlightHub)

One-way from

$307
(Kiwi.com)

Popular in

September

Cheapest in

November

Average price

$727
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. 5% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/14. 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.
vie. 10/39:40 pmIAD - SOF
1 stop15h 45mTurkish Airlines
vie. 10/173:35 pmSOF - IAD
1 stop35h 10mTurkish Airlines
Deal found 8/14$594
This CrystalTravel deal was found by Cheapflights users on 8/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/311:30 pmIAD - SOF
1 stop23h 55mTurkish Airlines
jue. 9/259:15 pmSOF - IAD
1 stop21h 30mTurkish Airlines
Deal found 8/13$599
This United Airlines deal was found by Cheapflights users on 8/13. 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.
dom. 11/25:40 pmIAD - SOF
1 stop17h 40mUnited Airlines
mar. 11/116:00 amSOF - IAD
1 stop16h 50mUnited Airlines
Deal found 8/13$600
This oojo deal was found by Cheapflights users on 8/12. 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.
mar. 9/169:40 pmIAD - SOF
1 stop15h 45mTurkish Airlines
jue. 9/259:15 pmSOF - IAD
1 stop21h 30mTurkish Airlines
Deal found 8/12$601
This FlightHub deal was found by Cheapflights users on 8/12. 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.
lun. 9/89:40 pmIAD - SOF
1 stop27h 55mTurkish Airlines
lun. 9/159:15 pmSOF - IAD
1 stop21h 30mTurkish Airlines
Deal found 8/12$602
This FlightHub deal was found by Cheapflights users on 8/12. 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.
mié. 9/31:00 pmIAD - SOF
2 stops17h 15mAir Canada
mié. 11/196:15 amSOF - IAD
2 stops17h 06mAir Canada
Deal found 8/12$604
This United Airlines deal was found by Cheapflights users on 8/11. 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.
lun. 9/11:00 pmIAD - SOF
2 stops17h 00mUnited Airlines
mié. 11/56:15 amSOF - IAD
1 stop16h 35mUnited Airlines
Deal found 8/11$605
This Air Canada deal was found by Cheapflights users on 8/12. 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.
sáb. 11/810:11 pmIAD - SOF
2 stops37h 09mAir Canada
vie. 12/56:10 amSOF - IAD
2 stops21h 49mAir Canada
Deal found 8/12$607
This Ovago deal was found by Cheapflights users on 8/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/105:29 pmIAD - SOF
2 stops43h 41mBritish Airways
lun. 11/245:25 pmSOF - IAD
1 stop29h 10mBritish Airways
Deal found 8/12$608
This KAYAK deal was found by Cheapflights users on 8/11. 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.
lun. 9/18:45 pmIAD - SOF
1 stop30h 20mSWISS
lun. 11/33:00 pmSOF - IAD
1 stop32h 40mSWISS
Deal found 8/11$610
This Air Canada deal was found by Cheapflights users on 8/13. 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.
sáb. 11/15:15 pmIAD - SOF
2 stops38h 20mAir Canada
mar. 11/116:00 amSOF - IAD
2 stops21h 59mAir Canada
Deal found 8/13$611
This FlightHub deal was found by Cheapflights users on 8/11. 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.
vie. 9/51:30 pmIAD - SOF
1 stop23h 55mTurkish Airlines
vie. 9/193:35 pmSOF - IAD
1 stop27h 10mTurkish Airlines
Deal found 8/11$612

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 agosto 14, 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

vie. 10/3

9:40 pm-8:25 pm

1 stop15h 45m

Sofia

vie. 10/17

3:35 pm-7:45 pm

1 stop35h 10m

$594

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 1/14

5:25 pm-3:15 pm

1 stop14h 50m

Sofia

mié. 1/28

2:25 pm-8:15 pm

1 stop12h 50m

$598

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

dom. 8/31

1:30 pm-8:25 pm

1 stop23h 55m

Sofia

jue. 9/25

9:15 pm-11:45 am

1 stop21h 30m

$599

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mar. 11/18

5:40 pm-1:10 pm

1 stop12h 30m

Sofia

mar. 11/25

6:00 am-8:59 pm

2 stops21h 59m

$600

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

dom. 11/2

1:20 pm-1:10 pm

2 stops16h 50m

Sofia

mar. 11/11

6:00 am-8:59 pm

2 stops21h 59m

$600

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 9/3

10:20 pm-11:00 pm

1 stop17h 40m

Sofia

mié. 11/19

6:15 am-8:59 pm

2 stops21h 44m

$600

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 11/12

11:10 pm-6:20 pm

1 stop12h 10m

Sofia

mié. 11/26

6:10 am-4:21 pm

2 stops17h 11m

$600

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 11/12

9:45 am-6:20 pm

2 stops25h 35m

Sofia

mié. 11/26

6:10 am-8:59 pm

2 stops21h 49m

$600

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mar. 11/4

5:40 pm-6:20 pm

1 stop17h 40m

Sofia

jue. 11/13

6:00 am-4:21 pm

2 stops17h 21m

$600

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

dom. 11/2

9:45 am-1:10 pm

2 stops20h 25m

Sofia

mar. 11/11

6:00 am-3:50 pm

1 stop16h 50m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 31 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 $1,186). 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 agosto 14, 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 agosto 14, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Bulgaria, such as Austrian Airlines, United Airlines, and Turkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
829 reviews

Crew

8.1

Boarding

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Overall

7.6

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
829 reviews
Austrian Airlines
7.6
Good
829 reviews

Crew

8.1

Boarding

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Overall

7.6

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
8,916 reviews
Austrian Airlines
7.6
Good
829 reviews

Crew

8.1

Boarding

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Overall

7.6

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
3,940 reviews
Austrian Airlines
7.6
Good
829 reviews

Crew

8.1

Boarding

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Overall

7.6

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
Lufthansa
6.8
Okay
7,317 reviews
Austrian Airlines
7.6
Good
829 reviews

Crew

8.1

Boarding

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Overall

7.6

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
ITA Airways
6.7
Okay
1,018 reviews
Austrian Airlines
7.6
Good
829 reviews

Crew

8.1

Boarding

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Overall

7.6

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 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 $1,186). 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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Dulles Intl to Keflavik Intl flights
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Baltimore to Stansted flights
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Reagan-National to Istanbul flights
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Dulles Intl to Bruxelles-National flights
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Baltimore to Istanbul flights
Baltimore to Barcelona-El Prat flights
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Reagan-National to Keflavik Intl flights
Baltimore to Luton flights
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Baltimore to Athens flights
Dulles Intl to Linate flights

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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$552Average$866FlexibilityNo cancel feeOn-time77%
SWISSCheapest$552Average$993FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$588Average$932FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$679Average$839FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$691Average$968FlexibilityNo cancel feeOn-time76%
ITA AirwaysCheapest$879Average$1,155FlexibilityNo cancel feeOn-time81%

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