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$448+ 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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
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 octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$493
(Mytrip)

One-way from

$448
(Thrive Travel)

Popular in

December

Cheapest in

November

Average price

$752
Provider with most accurate pricing for Washington, D.C. (WAS)-Sofia flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sofia flights.
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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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High demand for flights, 0% potential price rise
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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 October 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 octubre 16, 2025.

This Mytrip deal was found by Cheapflights users on 10/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/89:45 amIAD - SOF
2 stops25h 35mMultiple Airlines
lun. 12/226:10 amSOF - IAD
1 stop16h 40mMultiple Airlines
Deal found 10/16$502
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/2910:55 pmIAD - SOF
1 stop12h 25mMultiple Airlines
sáb. 12/66:25 amSOF - IAD
2 stops21h 34mMultiple Airlines
Deal found 10/15$503
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/246:00 pmIAD - SOF
1 stop10h 50mMultiple Airlines
jue. 12/42:00 pmSOF - IAD
1 stop13h 05mMultiple Airlines
Deal found 10/15$508
This FlightHub deal was found by Cheapflights users on 10/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/59:15 pmIAD - SOF
1 stop34h 55mTurkish Airlines
mié. 11/129:35 amSOF - IAD
1 stop16h 45mTurkish Airlines
Deal found 10/16$512
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/51:30 pmIAD - SOF
1 stop12h 15mTurkish Airlines
mié. 11/194:00 pmSOF - IAD
1 stop26h 45mTurkish Airlines
Deal found 10/15$521
This Booking.com deal was found by Cheapflights users on 10/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1510:55 pmIAD - SOF
1 stop16h 50mLufthansa
sáb. 11/226:25 amSOF - IAD
1 stop16h 25mLufthansa
Deal found 10/15$522
This United Airlines deal was found by Cheapflights users on 10/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/810:55 pmIAD - SOF
1 stop12h 25mUnited Airlines
lun. 12/221:55 pmSOF - IAD
1 stop13h 10mUnited Airlines
Deal found 10/16$529
This Air Canada deal was found by Cheapflights users on 10/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/151:20 pmIAD - SOF
2 stops16h 55mMultiple Airlines
sáb. 11/226:25 amSOF - IAD
2 stops21h 55mMultiple Airlines
Deal found 10/15$534
This United Airlines deal was found by Cheapflights users on 10/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/110:55 pmIAD - SOF
1 stop12h 25mUnited Airlines
lun. 12/152:20 pmSOF - IAD
2 stops16h 01mUnited Airlines
Deal found 10/15$537
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/241:30 pmIAD - SOF
1 stop23h 55mTurkish Airlines
mié. 10/294:00 pmSOF - IAD
1 stop34h 20mTurkish Airlines
Deal found 10/15$540
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/251:30 pmIAD - SOF
1 stop19h 40mTurkish Airlines
mié. 10/299:35 amSOF - IAD
1 stop16h 45mTurkish Airlines
Deal found 10/15$549

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 octubre 16, 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

mié. 1/14

9:45 am-10:45 pm

2 stops30h 00m

Sofia

mié. 1/28

6:10 am-8:59 pm

2 stops21h 49m

$493

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

vie. 2/13

8:30 pm-10:15 am

1 stop30h 45m

Sofia

vie. 2/27

6:10 am-8:59 pm

2 stops21h 49m

$501

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 11/5

9:15 pm-3:10 pm

1 stop34h 55m

Sofia

mié. 11/12

9:35 am-7:20 pm

1 stop16h 45m

$512

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 11/5

1:30 pm-8:45 am

1 stop12h 15m

Sofia

mié. 11/19

4:00 pm-11:45 am

1 stop26h 45m

$521

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

lun. 12/8

10:55 pm-6:20 pm

1 stop12h 25m

Sofia

lun. 12/22

1:55 pm-8:05 pm

1 stop13h 10m

$529

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

sáb. 1/17

5:40 pm-1:15 pm

1 stop12h 35m

Sofia

sáb. 1/31

6:25 am-2:35 pm

1 stop15h 10m

$529

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 1/14

5:40 pm-1:15 pm

1 stop12h 35m

Sofia

lun. 2/16

2:20 pm-8:15 pm

1 stop12h 55m

$529

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

dom. 3/1

9:15 pm-3:10 pm

1 stop34h 55m

Sofia

vie. 3/13

9:35 am-12:45 pm

1 stop33h 10m

$530

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

sáb. 11/15

1:20 pm-1:15 pm

2 stops16h 55m

Sofia

sáb. 11/22

6:25 am-9:20 pm

2 stops21h 55m

$534

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

lun. 12/1

10:55 pm-6:20 pm

1 stop12h 25m

Sofia

lun. 12/15

2:20 pm-11:21 pm

2 stops16h 01m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 18 results
1
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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 $534). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $767). 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 octubre 16, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Bulgaria at noon. Doing so could potentially save you 43% on the flight price compared to flying in the evening, which is usually more expensive.

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 octubre 16, 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
855 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Food

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Austrian Airlines
7.6
Good
855 reviews
Austrian Airlines
7.6
Good
855 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Food

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
United Airlines
7.4
Good
8,980 reviews
Austrian Airlines
7.6
Good
855 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Food

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Turkish Airlines
7.3
Good
4,009 reviews
Austrian Airlines
7.6
Good
855 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Food

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Lufthansa
6.8
Okay
7,492 reviews
Austrian Airlines
7.6
Good
855 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Food

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
ITA Airways
6.7
Okay
1,068 reviews
Austrian Airlines
7.6
Good
855 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Food

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

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 and Lufthansa fly from Washington, D.C. Dulles Intl Airport to Bulgaria in about 34h 55m. The time it takes to get you to your destination can typically vary by up to 3h 20m. 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria (average of $534). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $767). 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.
Dulles Intl to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Baltimore to Heathrow flights
Dulles Intl to Madrid flights
Dulles Intl to Istanbul flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
Dulles Intl to Lisbon flights
Dulles Intl to Frankfurt flights
Reagan-National to Madrid flights
Reagan-National to Gatwick flights
Baltimore to Madrid flights
Dulles Intl to Dublin flights
Dulles Intl to Barcelona-El Prat flights
Dulles Intl to Orly flights
Dulles Intl to Stansted flights
Baltimore to Charles de Gaulle flights
Reagan-National to Charles de Gaulle flights
Dulles Intl to Luton flights
Reagan-National to Orly flights
Dulles Intl to Amsterdam flights
Reagan-National to Istanbul flights
Dulles Intl to Munich flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Baltimore to Luton flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Keflavik Intl flights
Baltimore to Istanbul flights
Dulles Intl to Bruxelles-National flights
Dulles Intl to Vicenza flights
Reagan-National to Barcelona-El Prat flights
Reagan-National to Frankfurt flights
Dulles Intl to Zurich flights
Baltimore to Lisbon flights
Dulles Intl to Vienna flights
Reagan-National to Lisbon flights
Baltimore to Frankfurt flights
Baltimore to London City flights
Baltimore to Barcelona-El Prat flights
Dulles Intl to Sabiha Gokcen flights
Reagan-National to London City flights
Baltimore to Dublin flights
Reagan-National to Dublin flights
Reagan-National to Vicenza flights
Baltimore to Keflavik Intl flights
Dulles Intl to Malpensa flights
Dulles Intl to Edinburgh 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 octubre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$550Average$864FlexibilityNo cancel feeOn-time77%
SWISSCheapest$552Average$993FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$679Average$839FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$691Average$964FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$719Average$1,184FlexibilityNo cancel feeOn-time78%
ITA AirwaysCheapest$951Average$1,159FlexibilityNo cancel feeOn-time81%

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