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Cheap flights from Washington, D.C. Dulles Intl Airport to Bulgaria from $293

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Bulgaria departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Bulgaria

Cheap round-trip flights

Lufthansa Logo
11:55 pm - 10:45 pmIAD-SOF
16h 50m1 stop
Lufthansa Logo
6:10 am - 3:50 pmSOF-IAD
16h 40m1 stop
$521Lufthansa
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
9:00 am - 1:50 pmIAD-SOF
22h 50m2 stops
Air Canada Logo
6:10 am - 8:26 pmSOF-IAD
21h 16m2 stops
$534Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
9:45 am - 6:20 pmIAD-SOF
26h 35m2 stops
Multiple Airlines Logo
3:00 pm - 4:40 pmSOF-IAD
32h 40m1 stop
$535Multiple Airlines
Find Deal
Sun, Oct 26 - Mon, Nov 10
Multiple Airlines Logo
9:00 am - 6:00 pmIAD-SOF
27h 00m2 stops
Multiple Airlines Logo
6:10 am - 3:50 pmSOF-IAD
16h 40m1 stop
$536Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Turkish Airlines Logo
1:30 pm - 2:45 pmIAD-SOF
18h 15m1 stop
Turkish Airlines Logo
9:25 am - 11:45 amSOF-IAD
33h 20m1 stop
$538Turkish Airlines
Find Deal
Tue, Sep 30 - Wed, Oct 8
United Airlines Logo
7:20 pm - 10:45 pmIAD-SOF
21h 25m2 stops
United Airlines Logo
6:10 am - 3:50 pmSOF-IAD
16h 40m1 stop
$555United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
5:40 pm - 1:15 pmIAD-SOF
12h 35m1 stop
United Airlines Logo
2:20 pm - 8:54 pmSOF-IAD
37h 34m2 stops
$570United Airlines
Find Deal
Mon, Nov 3 - Mon, Nov 17
Turkish Airlines Logo
9:40 pm - 8:25 pmIAD-SOF
15h 45m1 stop
Turkish Airlines Logo
10:05 am - 8:15 pmSOF-IAD
16h 10m1 stop
$573Turkish Airlines
Find Deal
Thu, Oct 16 - Thu, Oct 30
Austrian Airlines Logo
5:15 pm - 11:40 amIAD-SOF
35h 25m2 stops
Austrian Airlines Logo
4:05 pm - 2:35 pmSOF-IAD
29h 30m1 stop
$596Austrian Airlines
Find Deal
Mon, Oct 6 - Mon, Oct 20
Austrian Airlines Logo
5:15 pm - 11:55 pmIAD-SOF
47h 40m2 stops
Austrian Airlines Logo
6:55 pm - 3:57 pmSOF-IAD
52h 02m2 stops
$653Austrian Airlines
Find Deal
Mon, Oct 6 - Mon, Oct 20

Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to Bulgaria

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Bulgaria flight tickets
Turkish Airlines
Sep 30
IAD1:30 pmWashington, D.C. Dulles Intl
18h 15m
1 stop
SOF2:45 pmSofia
Oct 8
SOF9:25 amSofia
33h 20m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$538
Find similar
Turkish Airlines
Oct 16
IAD9:40 pmWashington, D.C. Dulles Intl
15h 45m
1 stop
SOF8:25 pmSofia
Oct 30
SOF10:05 amSofia
16h 10m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
$573
Find similar
Turkish Airlines
Oct 6
IAD9:40 pmWashington, D.C. Dulles Intl
34h 05m
1 stop
SOF2:45 pmSofia
Oct 20
SOF9:15 pmSofia
29h 30m
1 stop
IAD7:45 pmWashington, D.C. Dulles Intl
$575
Find similar

United Airlines flights from Washington, D.C. Dulles Intl Airport to Bulgaria

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Bulgaria flight tickets
United Airlines
Oct 29
IAD7:20 pmWashington, D.C. Dulles Intl
21h 25m
2 stops
SOF10:45 pmSofia
Nov 5
SOF6:10 amSofia
16h 40m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$555
Find similar
United Airlines
Nov 3
IAD5:40 pmWashington, D.C. Dulles Intl
12h 35m
1 stop
SOF1:15 pmSofia
Nov 17
SOF2:20 pmSofia
37h 34m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$570
Find similar
United Airlines
Oct 31
IAD11:55 pmWashington, D.C. Dulles Intl
16h 50m
1 stop
SOF10:45 pmSofia
Nov 7
SOF6:10 amSofia
21h 44m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$601
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated September 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

Fly to

Route

Depart

Return

Price

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 10/29

11:55 pm-10:45 pm

1 stop16h 50m

Sofia

Wed 11/5

6:10 am-3:50 pm

1 stop16h 40m

$521

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 10/29

9:00 am-1:50 pm

2 stops22h 50m

Sofia

Wed 11/5

6:10 am-8:26 pm

2 stops21h 16m

$534

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Sun 10/26

9:45 am-6:20 pm

2 stops26h 35m

Sofia

Mon 11/10

3:00 pm-4:40 pm

1 stop32h 40m

$535

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 10/29

9:00 am-6:00 pm

2 stops27h 00m

Sofia

Wed 11/5

6:10 am-3:50 pm

1 stop16h 40m

$536

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 9/30

1:30 pm-2:45 pm

1 stop18h 15m

Sofia

Wed 10/8

9:25 am-11:45 am

1 stop33h 20m

$538

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

Mon 11/3

5:40 pm-1:15 pm

1 stop12h 35m

Sofia

Mon 11/17

2:20 pm-8:54 pm

2 stops37h 34m

$570

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Thu 10/16

9:40 pm-8:25 pm

1 stop15h 45m

Sofia

Thu 10/30

10:05 am-8:15 pm

1 stop16h 10m

$573

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 10/6

5:15 pm-11:40 am

2 stops35h 25m

Sofia

Mon 10/20

4:05 pm-2:35 pm

1 stop29h 30m

$596

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 10/6

5:15 pm-11:55 pm

2 stops47h 40m

Sofia

Mon 10/20

6:55 pm-3:57 pm

2 stops52h 02m

$653

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bulgaria from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Bulgaria

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Bulgaria?

If you aren’t able to travel to Bulgaria during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $645.

What is the cheapest day to depart on your flight to Bulgaria?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Bulgaria is on a Wednesday when prices can be found for as low as $883. On the other hand, Saturday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,109.

What is the cheapest time of day to depart on your flight to Bulgaria?

At noon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Bulgaria when you can find flight prices for as low as $656. Flying to Bulgaria at noon is an ideal time because this is during off-peak travel hours. Flights to Bulgaria are more costly in the afternoon, with an average ticket price of $1,052. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $845 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Washington, D.C. Dulles Intl Airport for as low as $679 on momondo.

Cheap Washington, D.C. Dulles Intl Airport to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Bulgaria

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Bulgaria. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Bulgaria.
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  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Bulgaria?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Bulgaria are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Bulgaria?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Bulgaria?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The travel and health documents you'll need for your trip to Bulgaria may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bulgaria. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Bulgaria

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $552Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
SWISSPriceFrom $552Free CancellationRating
7.6
1,737 reviews
Search SWISS flights
Austrian AirlinesPriceFrom $588Free CancellationRating
7.6
850 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom $679Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
LufthansaPriceFrom $691Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
ITA AirwaysPriceFrom $951Free CancellationRating
6.7
1,036 reviews
Search ITA Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Bulgaria?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Bulgaria. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Bulgaria with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Bulgaria on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Bulgaria?

Once you have performed a search for Washington, D.C. to Bulgaria flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Bulgaria right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Bulgaria flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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