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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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$521
(Ticket)

One-way from

$448
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$653
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 September 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 September 15, 2025.

This Ticket deal was found by Cheapflights users on 9/14. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:55 pmIAD - SOF
1 stop16h 50mLufthansa
Wed 11/56:10 amSOF - IAD
1 stop16h 40mLufthansa
Deal found 9/14$521
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:00 amIAD - SOF
2 stops22h 50mAir Canada
Wed 11/56:10 amSOF - IAD
2 stops21h 16mAir Canada
Deal found 9/14$534
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:00 amIAD - SOF
2 stops27h 00mMultiple Airlines
Wed 11/56:10 amSOF - IAD
1 stop16h 40mMultiple Airlines
Deal found 9/14$536
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/229:40 pmIAD - SOF
1 stop34h 05mTurkish Airlines
Thu 10/3010:05 amSOF - IAD
1 stop32h 40mTurkish Airlines
Deal found 9/13$538
This Gotogate deal was found by Cheapflights users on 9/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/59:45 amIAD - SOF
2 stops25h 35mMultiple Airlines
Wed 11/196:10 amSOF - IAD
1 stop16h 40mMultiple Airlines
Deal found 9/13$540
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:25 pmIAD - SOF
2 stops18h 55mMultiple Airlines
Mon 11/173:00 pmSOF - IAD
1 stop32h 40mMultiple Airlines
Deal found 9/14$541
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Tue 11/48:30 pmIAD - SOF
2 stops14h 50mMultiple Airlines
Tue 11/186:00 amSOF - IAD
2 stops21h 54mMultiple Airlines
Deal found 9/15$544
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Tue 11/46:00 pmIAD - SOF
1 stop10h 50mAustrian Airlines
Tue 11/187:55 amSOF - IAD
1 stop13h 45mAustrian Airlines
Deal found 9/15$548
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 11/45:40 pmIAD - SOF
1 stop17h 40mUnited Airlines
Tue 11/186:00 amSOF - IAD
2 stops21h 54mUnited Airlines
Deal found 9/15$551
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:20 pmIAD - SOF
2 stops21h 25mUnited Airlines
Wed 11/56:10 amSOF - IAD
1 stop16h 40mUnited Airlines
Deal found 9/14$555
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sun 9/289:40 pmIAD - SOF
1 stop27h 55mTurkish Airlines
Thu 10/99:25 amSOF - IAD
1 stop17h 20mTurkish Airlines
Deal found 9/15$556
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:00 pmIAD - VAR
1 stop16h 20mMultiple Airlines
Wed 11/54:00 pmVAR - IAD
1 stop29h 40mMultiple Airlines
Deal found 9/14$566

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 September 15, 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

Wed 11/5

6:00 pm-11:50 am

1 stop10h 50m

Sofia

Wed 11/19

7:55 am-2:40 pm

1 stop13h 45m

$536

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 11/4

8:30 pm-6:20 pm

2 stops14h 50m

Sofia

Tue 11/18

6:00 am-8:54 pm

2 stops21h 54m

$544

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 1/14

1:15 pm-3:15 pm

2 stops19h 00m

Sofia

Wed 1/28

6:10 am-8:59 pm

2 stops21h 49m

$549

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 2/10

5:40 pm-6:20 pm

1 stop17h 40m

Sofia

Tue 2/24

6:00 am-4:13 pm

2 stops17h 13m

$552

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 1/13

5:40 pm-1:15 pm

1 stop12h 35m

Sofia

Tue 1/27

6:00 am-4:24 pm

2 stops17h 24m

$552

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 2/10

5:40 pm-1:15 pm

1 stop12h 35m

Sofia

Tue 2/24

2:15 pm-8:15 pm

1 stop13h 00m

$552

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 2/11

9:45 am-6:20 pm

2 stops25h 35m

Sofia

Wed 2/25

6:10 am-3:50 pm

1 stop16h 40m

$553

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 10/29

7:20 pm-10:45 pm

2 stops21h 25m

Sofia

Wed 11/5

6:10 am-3:50 pm

1 stop16h 40m

$555

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 1/13

1:15 pm-1:45 pm

2 stops17h 30m

Sofia

Tue 1/27

6:00 am-8:59 pm

2 stops21h 59m

$556

Washington, D.C.Varna

IAD - VAR

IADVAR

Washington, D.C. Dulles Intl

Wed 10/29

9:00 am-5:20 pm

2 stops26h 20m

Varna

Wed 11/5

4:00 pm-2:40 pm

1 stop29h 40m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 19 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 $632). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $1,185). 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 September 15, 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 September 15, 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
850 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

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
850 reviews
Austrian Airlines
7.6
Good
850 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

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
8,929 reviews
Austrian Airlines
7.6
Good
850 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

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
3,968 reviews
Austrian Airlines
7.6
Good
850 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

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
7,407 reviews
Austrian Airlines
7.6
Good
850 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

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
1,036 reviews
Austrian Airlines
7.6
Good
850 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

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 Austrian Airlines, United Airlines, and Lufthansa fly from Washington, D.C. Dulles Intl Airport to Bulgaria in about 10h 50m. The time it takes to get you to your destination can typically vary by up to 27h 25m. 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 $632). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in June is currently the most expensive (average of $1,185). 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 Leonardo da Vinci/Fiumicino flights
Dulles Intl to Madrid flights
Dulles Intl to Istanbul flights
Reagan-National to Heathrow flights
Dulles Intl to Dublin flights
Dulles Intl to Gatwick flights
Dulles Intl to Lisbon flights
Dulles Intl to Barcelona-El Prat flights
Dulles Intl to London City flights
Dulles Intl to Orly flights
Baltimore to Gatwick flights
Baltimore to Charles de Gaulle flights
Reagan-National to Charles de Gaulle flights
Reagan-National to Madrid flights
Dulles Intl to Frankfurt flights
Baltimore to Madrid flights
Reagan-National to Gatwick flights
Dulles Intl to Keflavik Intl flights
Dulles Intl to Athens flights
Reagan-National to Orly flights
Dulles Intl to Munich flights
Dulles Intl to Amsterdam flights
Dulles Intl to Bruxelles-National flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Zurich flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Reagan-National to Istanbul flights
Dulles Intl to Geneva flights
Baltimore to Keflavik Intl flights
Baltimore to Lisbon flights
Dulles Intl to Stansted flights
Reagan-National to Lisbon flights
Baltimore to Istanbul flights
Baltimore to Dublin flights
Dulles Intl to Vienna flights
Reagan-National to Dublin flights
Dulles Intl to Luton flights
Reagan-National to Keflavik Intl flights
Dulles Intl to Edinburgh flights
Reagan-National to Barcelona-El Prat flights
Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Malpensa flights
Baltimore to Barcelona-El Prat flights
Dulles Intl to Ivalo flights
Dulles Intl to Linate flights
Dulles Intl to Beauvais-Tille flights
Reagan-National to Athens 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$552Average$858FlexibilityNo cancel feeOn-time77%
SWISSCheapest$552Average$993FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$588Average$925FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$679Average$839FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$691Average$955FlexibilityNo cancel feeOn-time76%
ITA AirwaysCheapest$951Average$1,159FlexibilityNo cancel feeOn-time81%

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