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$522+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 abril 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$765
(CheapOair)

One-way from

$523
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$874
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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Highest demand for flights based on searches. 20% potential increase in price ($216 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 29, 2025.

This United Airlines deal was found by Cheapflights users on 4/28. 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.
mar. 5/209:00 amIAD - SOF
2 stops21h 20mUnited Airlines
jue. 8/216:15 amSOF - IAD
2 stops18h 15mUnited Airlines
Deal found 4/28$755
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/202:25 pmIAD - SOF
2 stops14h 35mMultiple Airlines
jue. 8/216:00 amSOF - IAD
2 stops14h 30mMultiple Airlines
Deal found 4/29$765
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/241:30 pmIAD - SOF
1 stop18h 15mTurkish Airlines
dom. 9/143:35 pmSOF - IAD
1 stop27h 10mTurkish Airlines
Deal found 4/29$772
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/318:45 pmIAD - SOF
1 stop30h 20mSWISS
jue. 8/1410:50 amSOF - IAD
1 stop12h 25mSWISS
Deal found 4/29$779
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/239:45 amIAD - SOF
2 stops25h 55mAir Canada
vie. 9/126:15 amSOF - IAD
2 stops38h 23mAir Canada
Deal found 4/29$780
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2112:35 pmIAD - SOF
2 stops18h 25mKLM
vie. 9/127:00 amSOF - IAD
1 stop15h 35mKLM
Deal found 4/29$792
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/110:20 pmIAD - SOF
2 stops17h 30mLufthansa
dom. 8/246:00 amSOF - IAD
2 stops16h 50mLufthansa
Deal found 4/29$797
This British Airways deal was found by Cheapflights users on 4/28. 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.
mar. 7/1510:40 pmIAD - SOF
1 stop15h 00mBritish Airways
mié. 8/139:30 pmSOF - IAD
1 stop25h 25mBritish Airways
Deal found 4/28$806
This oojo deal was found by Cheapflights users on 4/28. 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.
dom. 8/174:30 pmIAD - SOF
1 stop12h 35mITA Airways
mié. 8/2012:55 pmSOF - IAD
1 stop32h 45mITA Airways
Deal found 4/28$847
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/410:40 pmIAD - SOF
1 stop31h 50mAmerican Airlines
mié. 6/119:30 pmSOF - IAD
1 stop25h 20mAmerican Airlines
Deal found 4/28$864
This FlightHub deal was found by Cheapflights users on 4/28. 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. 9/265:25 pmIAD - BOJ
1 stop14h 50mMultiple Airlines
mar. 9/309:25 amBOJ - IAD
2 stops19h 00mMultiple Airlines
Deal found 4/28$900
This Austrian Airlines deal was found by Cheapflights users on 4/28. 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.
dom. 7/205:25 pmIAD - SOF
1 stop23h 30mAustrian Airlines
lun. 8/46:55 pmSOF - IAD
1 stop26h 40mAustrian Airlines
Deal found 4/28$900

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 abril 29, 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

mar. 5/20

9:00 am-1:20 pm

2 stops21h 20m

Sofia

jue. 8/21

6:15 am-5:30 pm

2 stops18h 15m

$755

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mar. 5/20

2:25 pm-12:00 pm

2 stops14h 35m

Sofia

jue. 8/21

6:00 am-1:30 pm

2 stops14h 30m

$765

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

dom. 8/24

1:30 pm-2:45 pm

1 stop18h 15m

Sofia

dom. 9/14

3:35 pm-11:45 am

1 stop27h 10m

$772

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

jue. 7/31

8:45 pm-10:05 am

1 stop30h 20m

Sofia

jue. 8/14

10:50 am-4:15 pm

1 stop12h 25m

$779

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

sáb. 8/23

9:45 am-6:40 pm

2 stops25h 55m

Sofia

vie. 9/12

6:15 am-1:38 pm

2 stops38h 23m

$780

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

jue. 8/21

12:35 pm-2:00 pm

2 stops18h 25m

Sofia

vie. 9/12

7:00 am-3:35 pm

1 stop15h 35m

$792

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

vie. 8/1

10:20 pm-10:50 pm

2 stops17h 30m

Sofia

dom. 8/24

6:00 am-3:50 pm

2 stops16h 50m

$797

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mar. 7/15

10:40 pm-8:40 pm

1 stop15h 00m

Sofia

mié. 8/13

9:30 pm-3:55 pm

1 stop25h 25m

$806

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

dom. 8/17

4:30 pm-12:05 pm

1 stop12h 35m

Sofia

mié. 8/20

12:55 pm-2:40 pm

1 stop32h 45m

$847

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

mié. 6/4

10:40 pm-1:30 pm

1 stop31h 50m

Sofia

mié. 6/11

9:30 pm-3:50 pm

1 stop25h 20m

$864

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 $1,218). 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 abril 29, 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.

Rainfall in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bulgaria ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bulgaria, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 abril 29, 2025.
To help decide which airline to fly from Washington, D.C. to Bulgaria, see what other customers have to say about KLM, Austrian Airlines and SWISS. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Comfort

7.7

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,334 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Comfort

7.7

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.6
Good
780 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Comfort

7.7

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,588 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Comfort

7.7

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Air France
7.4
Good
1,446 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Comfort

7.7

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,696 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Comfort

7.7

Food

7.2

Entertainment

7.1

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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 $1,218). 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 7 airlines flying from Dulles Intl to Bulgaria

Discover the top 7 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$552Average$1,126FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$588Average$925FlexibilityNo cancel feeOn-time78%
ITA AirwaysCheapest$597Average$1,101FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$619Average$1,012FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$709Average$1,135FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$762Average$1,063FlexibilityNo cancel feeOn-time76%
SWISSCheapest$792Average$1,108FlexibilityNo cancel feeOn-time79%

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