$284+ Cheap flights from Dulles Intl (IAD) to Bulgaria
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SOF
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Bulgaria with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Dulles Intl to BulgariaExplore 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 November 4, 2026.
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 November 4, 2026.
This Mytrip deal was found by Cheapflights users on 11/2. 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 11/305:25 pm -
3 stops33h 05m
Mon 12/74:55 pm -
2 stops28h 45m
Deal found 11/2![Multiple Airlines logo]()
$661
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Sun 11/2910:30 pm -
2 stops19h 40m
Sun 12/64:55 pm -
2 stops29h 20m
Deal found 11/1![Multiple Airlines logo]()
$665
This Turkish Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 12/11:30 pm -
1 stop12h 10m
Tue 12/89:30 am -
1 stop16h 55m
Deal found 11/4![Turkish Airlines logo]()
$699
This CheapOair deal was found by Cheapflights users on 11/2. 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.
Mon 11/301:30 pm -
1 stop18h 40m
Mon 12/79:30 am -
1 stop16h 55m
Deal found 11/2![Turkish Airlines logo]()
$739
This CheapOair deal was found by Cheapflights users on 11/1. 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.
Sun 11/291:30 pm -
1 stop12h 10m
Sun 12/64:00 pm -
1 stop26h 45m
Deal found 11/1![Turkish Airlines logo]()
$759
This Booking.com deal was found by Cheapflights users on 11/2. 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.
Thu 11/125:25 pm -
2 stops19h 30m
Thu 11/194:55 pm -
2 stops34h 35m
Deal found 11/2![Multiple Airlines logo]()
$774
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Mon 12/2810:55 pm -
1 stop17h 00m
Mon 1/113:00 pm -
1 stop33h 00m
Deal found 11/4![Multiple Airlines logo]()
$778
This Gotogate deal was found by Cheapflights users on 11/3. 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.
Tue 12/110:55 pm -
1 stop17h 00m
Wed 12/96:25 am -
2 stops20h 58m
Deal found 11/3![Multiple Airlines logo]()
$780
This Turkish Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 12/49:20 pm -
1 stop28h 30m
Tue 12/89:40 am -
1 stop16h 45m
Deal found 11/3![Turkish Airlines logo]()
$780
This Gotogate deal was found by Cheapflights users on 10/31. 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 12/28:10 pm -
1 stop12h 15m
Wed 12/166:00 am -
2 stops21h 10m
Deal found 10/31![Multiple Airlines logo]()
$789
This FlightHub deal was found by Cheapflights users on 11/1. 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 11/231:30 pm -
1 stop24h 25m
Mon 12/79:45 pm -
1 stop21h 00m
Deal found 11/1![Turkish Airlines logo]()
$790
This Globehunters deal was found by Cheapflights users on 11/3. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:30 pm -
1 stop12h 20m
Thu 12/39:50 pm -
1 stop28h 35m
Deal found 11/3![Turkish Airlines logo]()
$947
Best flights from Dulles Intl to BulgariaDiscover carefully curated flight deals from Dulles Intl to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Dulles Intl to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Turkish Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 12/11:30 pm -
1 stop12h 10m
Tue 12/89:30 am -
1 stop16h 55m
Deal found 11/4![Turkish Airlines logo]()
$699
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 2/1512:36 pm -
2 stops17h 39m
Wed 2/176:25 am -
1 stop16h 30m
Deal found 10/30![United Airlines logo]()
$732
This United deal was found by Cheapflights users on 11/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:40 pm -
2 stops17h 35m
Wed 12/96:25 am -
2 stops20h 58m
Deal found 11/3![Multiple Airlines logo]()
$798
This Justfly.com deal was found by Cheapflights users on 11/3. 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.
Tue 12/16:00 pm -
2 stops14h 15m
Thu 12/34:00 pm -
2 stops30h 55m
Deal found 11/3![Lufthansa logo]()
$1,099
This oojo deal was found by Cheapflights users on 11/3. 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.
Mon 4/261:15 pm -
1 stop12h 30m
Wed 5/59:35 am -
1 stop17h 15m
Deal found 11/3![Turkish Airlines logo]()
$699
This United Airlines deal was found by Cheapflights users on 10/31. 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 12/15:35 pm -
1 stop12h 40m
Tue 12/86:25 am -
1 stop16h 30m
Deal found 10/31![United Airlines logo]()
$790
This Turkish Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 12/49:20 pm -
1 stop28h 30m
Tue 12/89:40 am -
1 stop16h 45m
Deal found 11/3![Turkish Airlines logo]()
$780
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 3/2010:10 pm -
2 stops33h 15m
Sun 4/46:20 am -
1 stop16h 35m
Deal found 10/30![United Airlines logo]()
$805
This Turkish Airlines deal was found by Cheapflights users on 10/31. 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.
Sat 1/301:30 pm -
1 stop14h 20m
Sat 4/103:55 pm -
1 stop34h 55m
Deal found 10/31![Turkish Airlines logo]()
$799
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 3/2010:10 pm -
2 stops42h 50m
Sat 4/36:20 am -
2 stops21h 45m
Deal found 10/30![United Airlines logo]()
$809
This Expedia deal was found by Cheapflights users on 11/3. 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.
Thu 11/1910:55 pm -
2 stops33h 20m
Thu 11/267:10 pm -
2 stops32h 13m
Deal found 11/3![Multiple Airlines logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Thu 12/312:50 pm -
2 stops27h 05m
Thu 12/176:25 am -
1 stop16h 30m
Deal found 11/1![United Airlines logo]()
$845
This Justfly.com deal was found by Cheapflights users on 10/31. 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.
Tue 12/16:10 pm -
1 stop14h 05m
Thu 12/34:00 pm -
2 stops30h 55m
Deal found 10/31![Multiple Airlines logo]()
$1,087
This United Airlines deal was found by Cheapflights users on 10/30. 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 3/197:10 pm -
1 stop10h 40m
Sun 4/46:20 am -
1 stop16h 35m
Deal found 10/30![United Airlines logo]()
$848
This Turkish Airlines deal was found by Cheapflights users on 11/2. 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.
Sun 2/289:20 pm -
1 stop28h 30m
Thu 3/49:50 pm -
1 stop20h 55m
Deal found 11/2![Turkish Airlines logo]()
$982
This United Airlines deal was found by Cheapflights users on 10/30. 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 3/1910:10 pm -
2 stops42h 50m
Sat 4/36:20 am -
2 stops21h 45m
Deal found 10/30![United Airlines logo]()
$859
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/912:50 pm -
2 stops17h 35m
Thu 1/76:25 am -
2 stops21h 37m
Deal found 11/2![United Airlines logo]()
$860
Last-minute flights from Dulles Intl to BulgariaDiscover last-minute flight deals from Dulles Intl to Bulgaria. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Bulgaria. Data last updated November 4, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 11/2. 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.
Thu 11/125:25 pm -
2 stops19h 30m
Thu 11/194:55 pm -
2 stops34h 35m
Deal found 11/2![Multiple Airlines logo]()
$774
This FlightHub deal was found by Cheapflights users on 11/1. 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 11/231:30 pm -
1 stop24h 25m
Mon 12/79:45 pm -
1 stop21h 00m
Deal found 11/1![Turkish Airlines logo]()
$790
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Sun 11/2910:30 pm -
2 stops19h 40m
Sun 12/64:55 pm -
2 stops29h 20m
Deal found 11/1![Multiple Airlines logo]()
$665
This CheapOair deal was found by Cheapflights users on 11/1. 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.
Sun 11/291:30 pm -
1 stop12h 10m
Sun 12/64:00 pm -
1 stop26h 45m
Deal found 11/1![Turkish Airlines logo]()
$759
This Mytrip deal was found by Cheapflights users on 11/2. 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 11/305:25 pm -
3 stops33h 05m
Mon 12/74:55 pm -
2 stops28h 45m
Deal found 11/2![Multiple Airlines logo]()
$661
This CheapOair deal was found by Cheapflights users on 11/2. 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.
Mon 11/301:30 pm -
1 stop18h 40m
Mon 12/79:30 am -
1 stop16h 55m
Deal found 11/2![Turkish Airlines logo]()
$739
This Turkish Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 12/11:30 pm -
1 stop12h 10m
Tue 12/89:30 am -
1 stop16h 55m
Deal found 11/4![Turkish Airlines logo]()
$699
This Gotogate deal was found by Cheapflights users on 11/3. 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.
Tue 12/110:55 pm -
1 stop17h 00m
Wed 12/96:25 am -
2 stops20h 58m
Deal found 11/3![Multiple Airlines logo]()
$780
This Globehunters deal was found by Cheapflights users on 11/3. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:30 pm -
1 stop12h 20m
Thu 12/39:50 pm -
1 stop28h 35m
Deal found 11/3![Turkish Airlines logo]()
$947
This Gotogate deal was found by Cheapflights users on 10/31. 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 12/28:10 pm -
1 stop12h 15m
Wed 12/166:00 am -
2 stops21h 10m
Deal found 10/31![Multiple Airlines logo]()
$789
This Turkish Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 12/49:20 pm -
1 stop28h 30m
Tue 12/89:40 am -
1 stop16h 45m
Deal found 11/3![Turkish Airlines logo]()
$780
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Mon 12/2810:55 pm -
1 stop17h 00m
Mon 1/113:00 pm -
1 stop33h 00m
Deal found 11/4![Multiple Airlines logo]()
$778
One-way flights from Dulles Intl to BulgariaSearch for one-way flight options from Dulles Intl to Bulgaria. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Dulles Intl to Bulgaria. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 11/95:25 pm -
3 stops42h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Thu 1/217:40 pm -
3 stops30h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 1/207:40 pm -
3 stops39h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 1/187:40 pm -
3 stops35h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/105:25 pm -
3 stops44h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$323
This FlightHub deal was found by Cheapflights users on 11/4. 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.
Fri 4/165:45 pm -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Austrian Airlines logo]()
$410
This FlightHub deal was found by Cheapflights users on 11/4. 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.
Fri 4/1610:20 pm -
2 stops33h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Lufthansa logo]()
$424
Find 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 November 4, 2026.
Round-trip from | $661 (Mytrip) |
|---|---|
One-way from | $284 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $703 |
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 7,457,451 searches. Data last updated November 4, 2026.
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
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Mon 11/9
5:25 pm-7:10 pm
3 stops42h 45m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$291
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Wed 1/20
7:40 pm-6:25 pm
3 stops39h 45m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$300
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Mon 1/18
7:40 pm-7:55 pm
2 stops17h 15m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$336
Quickest round-trip
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Wed 3/24
9:10 pm-3:25 pm
1 stop12h 15m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$342
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Wed 3/24
12:43 pm-1:25 pm
2 stops18h 42m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$359
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Thu 3/25
3:41 pm-11:00 pm
2 stops25h 19m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$409
Washington, D.C.Varna
IAD Washington, D.C. Dulles Intl - VAR Varna
IADVAR
Washington, D.C. Dulles Intl
Fri 4/16
5:45 pm-3:15 pm
1 stop14h 30m
Varna
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$410
Washington, D.C.Varna
IAD Washington, D.C. Dulles Intl - VAR Varna
IADVAR
Washington, D.C. Dulles Intl
Fri 4/16
10:20 pm-3:15 pm
2 stops33h 55m
Varna
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$424
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Sun 1/17
6:05 pm-4:20 pm
1 stop15h 15m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$498
Washington, D.C.Sofia
IAD Washington, D.C. Dulles Intl - SOF Sofia
IADSOF
Washington, D.C. Dulles Intl
Mon 11/9
10:55 pm-10:55 pm
1 stop17h 00m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$505
Showing 1-10 of 28 resultsSorted by cheapest first
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.
IAD-SOF
IAD-VAR
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
IAD-BG0
IAD-SOF
IAD-VAR
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria (average of $536). Flying from Washington, D.C. Dulles Intl Airport to Bulgaria in December is currently the most expensive (average of $1,405). 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.
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Bulgaria?
The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Bulgaria may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 November 4, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Bulgaria, such as Austrian Airlines,Turkish Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.8
Overall
7.5
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
2.0
MediocreNate,Dec 2025
IAD - GSP
Entertainment
6.8
Overall
7.5
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
2.0
MediocreNate,Dec 2025
IAD - GSP
Entertainment
6.8
Overall
7.5
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
2.0
MediocreNate,Dec 2025
IAD - GSP
Entertainment
6.8
Overall
7.5
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
2.0
MediocreNate,Dec 2025
IAD - GSP
Entertainment
6.8
Overall
7.5
Comfort
7.3
Crew
8.1
Food
6.7
Boarding
7.6
Reviews
1 / 20
2.0
MediocreNate,Dec 2025
IAD - GSP
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.
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Alternative routes for Dulles Intl to Bulgaria
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Complete your trip
Complete your trip to Bulgaria by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Dulles Intl to Bulgaria by cabin class
Find flights from Dulles Intl to Bulgaria, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Dulles Intl and Bulgaria flights
Browse other Dulles Intl and Bulgaria flight options. Last updated on November 4, 2026.
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Top 4 airlines flying from Dulles Intl to Bulgaria
Discover the top 4 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 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$533 | Average$753 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$637 | Average$989 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$638 | Average$989 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$809 | Average$1,273 | FlexibilityNo cancel fee | On-time78% |