Which layover airport offers the lowest fares from Sofia to Washington, D.C. Dulles Intl Airport?

Flights via Paris (CDG) offer the lowest average round-trip price of $617.

Which layover airport has the shortest travel time from Sofia to Washington, D.C. Dulles Intl Airport?

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 12h 48m.

Which airport is the most popular layover for flights between Sofia and Washington, D.C. Dulles Intl Airport?

Istanbul (IST) was the most common stop: 32% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Sofia to Washington, D.C. Dulles Intl Airport?

Vienna (VIE) has the shortest average layover time for this route: 1h 28m.

What airlines fly to Washington, D.C. Dulles Intl Airport?

Turkish Airlines, Lufthansa and KLM are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Sofia according to our data. Turkish Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 6 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Sofia Airport to Washington, D.C. Dulles Intl Airport?

Prices for flights from Sofia Airport to Washington, D.C. Dulles Intl Airport are updated daily.

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

There are 6 operators available for flights from Sofia Airport to Washington, D.C. Dulles Intl Airport as of August 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$429 Cheap Flights from Sofia to Washington, D.C. Dulles Intl Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sofia to Washington, D.C.

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:15 pm - 3:10 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

28h 55m2 stops Madrid Barajas Lisbon Humberto Delgado

10:35 pm - 1:25 amIAD Washington, D.C. Dulles Intl-SOF Sofia

19h 50m2 stops Lisbon Humberto Delgado Madrid Barajas

$710Multiple Airlines

Tue, Sep 15 - Tue, Sep 22

2:35 pm - 1:30 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

29h 55m3 stops Warsaw Frederic Chopin London Heathrow Brussels Bruxelles-National

10:20 pm - 1:15 amIAD Washington, D.C. Dulles Intl-SOF Sofia

19h 55m2 stops Munich Franz Josef Strauss London Stansted

$712Multiple Airlines

Tue, Sep 15 - Tue, Sep 22

3:50 pm - 11:30 amSOF Sofia-IAD Washington, D.C. Dulles Intl

26h 40m1 stop Istanbul

9:40 pm - 3:00 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

34h 20m1 stop Istanbul

$769Turkish Airlines

Thu, Sep 17 - Sat, Oct 3

3:50 pm - 11:30 amSOF Sofia-IAD Washington, D.C. Dulles Intl

26h 40m1 stop Istanbul

9:40 pm - 3:00 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

34h 20m1 stop Istanbul

$770Turkish Airlines

Thu, Sep 17 - Sat, Oct 3

1:50 pm - 8:00 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

13h 10m1 stop Frankfurt am Main

10:20 pm - 6:40 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

13h 20m1 stop Munich Franz Josef Strauss

$779Lufthansa

Wed, Oct 7 - Wed, May 26

6:10 am - 4:05 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

16h 55m1 stop Frankfurt am Main

10:20 pm - 11:15 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

17h 55m1 stop Munich Franz Josef Strauss

$783Lufthansa

Tue, Sep 15 - Tue, Sep 22

6:10 am - 1:35 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

14h 25m1 stop Frankfurt am Main

10:20 pm - 6:40 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

13h 20m1 stop Munich Franz Josef Strauss

$800United Airlines

Tue, Oct 6 - Tue, May 25

6:20 am - 4:05 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

16h 45m1 stop Frankfurt am Main

10:20 pm - 6:40 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

13h 20m1 stop Munich Franz Josef Strauss

$800United Airlines

Wed, Oct 7 - Thu, May 27

3:40 pm - 4:45 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

32h 05m1 stop Zurich

8:20 pm - 10:20 amIAD Washington, D.C. Dulles Intl-SOF Sofia

31h 00m1 stop Zurich

$807SWISS

Mon, Aug 31 - Tue, Jun 22

1:05 pm - 3:25 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

33h 20m1 stop Zurich

10:10 pm - 10:20 amIAD Washington, D.C. Dulles Intl-SOF Sofia

29h 10m2 stops London Heathrow Zurich

$826SWISS

Tue, Oct 6 - Tue, May 25

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

Our best Turkish Airlines deals on Sofia to Washington, D.C. Dulles Intl Airport flight tickets

Turkish Airlines

Sep 17

SOF3:50 pmSofia

26h 40m

1 stop

IAD11:30 amWashington, D.C. Dulles Intl

Oct 3

IAD9:40 pmWashington, D.C. Dulles Intl

34h 20m

1 stop

SOF3:00 pmSofia

$769

Turkish Airlines

Sep 17

SOF3:50 pmSofia

26h 40m

1 stop

IAD11:30 amWashington, D.C. Dulles Intl

Oct 3

IAD9:40 pmWashington, D.C. Dulles Intl

34h 20m

1 stop

SOF3:00 pmSofia

$770

Turkish Airlines

Oct 7

SOF9:10 pmSofia

29h 35m

1 stop

IAD7:45 pmWashington, D.C. Dulles Intl

Oct 21

IAD9:40 pmWashington, D.C. Dulles Intl

15h 40m

1 stop

SOF8:20 pmSofia

$773

Lufthansa flights from Sofia to Washington, D.C. Dulles Intl Airport

Our best Lufthansa deals on Sofia to Washington, D.C. Dulles Intl Airport flight tickets

Lufthansa

Oct 7

SOF1:50 pmSofia

13h 10m

1 stop

IAD8:00 pmWashington, D.C. Dulles Intl

May 26

IAD10:20 pmWashington, D.C. Dulles Intl

13h 20m

1 stop

SOF6:40 pmSofia

$779

Lufthansa

Sep 15

SOF6:10 amSofia

16h 55m

1 stop

IAD4:05 pmWashington, D.C. Dulles Intl

Sep 22

IAD10:20 pmWashington, D.C. Dulles Intl

17h 55m

1 stop

SOF11:15 pmSofia

$783

Lufthansa

Sep 15

SOF6:10 amSofia

14h 25m

1 stop

IAD1:35 pmWashington, D.C. Dulles Intl

Sep 22

IAD10:20 pmWashington, D.C. Dulles Intl

17h 55m

1 stop

SOF11:15 pmSofia

$786

momondo Fare Finder

Use the filters below to find and compare flights from Sofia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Tue 9/15

5:15 pm-3:10 pm

2 stops28h 55m

Washington, D.C. Dulles Intl

Tue 9/22

10:35 pm-1:25 am

2 stops19h 50m

$710

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Tue 9/15

2:35 pm-1:30 pm

3 stops29h 55m

Washington, D.C. Dulles Intl

Tue 9/22

10:20 pm-1:15 am

2 stops19h 55m

$712

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Thu 9/17

3:50 pm-11:30 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sat 10/3

9:40 pm-3:00 pm

1 stop34h 20m

$769

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Thu 9/17

3:50 pm-11:30 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sat 10/3

9:40 pm-3:00 pm

1 stop34h 20m

$770

Quickest round-trip

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Wed 10/7

1:50 pm-8:00 pm

1 stop13h 10m

Washington, D.C. Dulles Intl

Wed 5/26

10:20 pm-6:40 pm

1 stop13h 20m

$779

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Tue 9/15

6:10 am-4:05 pm

1 stop16h 55m

Washington, D.C. Dulles Intl

Tue 9/22

10:20 pm-11:15 pm

1 stop17h 55m

$783

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Tue 10/6

6:10 am-1:35 pm

1 stop14h 25m

Washington, D.C. Dulles Intl

Tue 5/25

10:20 pm-6:40 pm

1 stop13h 20m

$800

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Wed 10/7

6:20 am-4:05 pm

1 stop16h 45m

Washington, D.C. Dulles Intl

Thu 5/27

10:20 pm-6:40 pm

1 stop13h 20m

$800

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Mon 8/31

3:40 pm-4:45 pm

1 stop32h 05m

Washington, D.C. Dulles Intl

Tue 6/22

8:20 pm-10:20 am

1 stop31h 00m

$807

SofiaWashington, D.C.

SOF Sofia - IAD Washington, D.C. Dulles Intl

SOFIAD

Sofia

Tue 10/6

1:05 pm-3:25 pm

1 stop33h 20m

Washington, D.C. Dulles Intl

Tue 5/25

10:10 pm-10:20 am

2 stops29h 10m

$826

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Layovers

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, August is the cheapest month to fly from Sofia to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $564.

When to book flights from Sofia to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Sofia to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sofia to Washington, D.C. Dulles Intl Airport (SOF to IAD) flight deals and tips

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

Fastest flight time	26h 40m
Direct flights	None

The fastest flight from Sofia to Washington, D.C. Dulles Intl Airport takes 26h 40m

There are no direct flights from Sofia to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Sofia to Washington, D.C. Dulles Intl Airport.

Search flight deals

Frequently asked questions about flying from Sofia to Washington, D.C. Dulles Intl Airport

How far is Sofia to Washington, D.C. Dulles Intl by plane?
There are 4927.8 mi between Sofia and Washington, D.C. Dulles Intl. Typically, this will take 26h 40m by plane in normal conditions.
When did momondo last update prices for flights from Sofia Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Sofia Airport to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from Sofia Airport to Washington, D.C. Dulles Intl Airport?
There are 6 operators available for flights from Sofia Airport to Washington, D.C. Dulles Intl Airport as of August 2026.
How old do you have to be to fly from Sofia Airport to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sofia to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Sofia to Washington, D.C. Dulles Intl Airport is Turkish Airlines, representing 27% of all bookings. The subsequent popular airlines are Lufthansa at 23%, KLM at 19%, and United Airlines at 15%.

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

Compare and see reviews for airlines that fly from Sofia to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Air France	PriceFrom $470	Free Cancellation	Rating 7.5 1,640 reviews	Search Air France flights
KLM	PriceFrom $474	Free Cancellation	Rating 7.8 1,556 reviews	Search KLM flights
Lufthansa	PriceFrom $599	Free Cancellation	Rating 6.8 8,177 reviews	Search Lufthansa flights
Turkish Airlines	PriceFrom $632	Free Cancellation	Rating 7.4 4,480 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $697	Free Cancellation	Rating 7.4 10,102 reviews	Search United Airlines flights
SWISS	PriceFrom $909	Free Cancellation	Rating 7.5 2,034 reviews	Search SWISS flights

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Sterling

Colonial Beach

Springfield

Fairfax

Tysons

Edgewood

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

Finding the right flight to Washington, D.C. from Sofia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Sofia with this policy.

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

Once all potential Sofia to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Sofia to Washington, D.C. 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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Cheap flights from Sofia to Washington, D.C. from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sofia to Washington, D.C. departing on 10/19. 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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Turkish Airlines flights from Sofia to Washington, D.C. Dulles Intl Airport

Our best Turkish Airlines deals on Sofia to Washington, D.C. Dulles Intl Airport flight tickets

Lufthansa flights from Sofia to Washington, D.C. Dulles Intl Airport

Our best Lufthansa deals on Sofia to Washington, D.C. Dulles Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Sofia to Washington, D.C. Dulles Intl Airport that are best for you.

See travel insights to Washington, D.C. from

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

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

What airlines fly to Washington, D.C. Dulles Intl Airport?

Which airport is the most popular layover for flights between Sofia and Washington, D.C. Dulles Intl Airport?

Which layover airport offers the lowest fares from Sofia to Washington, D.C. Dulles Intl Airport?

Which layover airport has the shortest travel time from Sofia to Washington, D.C. Dulles Intl Airport?

Which layover airport has the shortest connection time from Sofia to Washington, D.C. Dulles Intl Airport?

When to book flights from Sofia to Washington, D.C. Dulles Intl Airport

Cheap Sofia to Washington, D.C. Dulles Intl Airport (SOF to IAD) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Sofia to Washington, D.C. Dulles Intl Airport

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

Compare and see reviews for airlines that fly from Sofia to Washington, D.C. Dulles Intl Airport with momondo

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An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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