Cheap flights from Washington, D.C. to Sofia from $252

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. to Sofia departing on 4/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:20 pm - 6:40 pm
IAD
-
SOF
13h 20m
1 stop
Multiple Airlines Logo
1:05 pm - 4:45 pm
SOF
-
IAD
34h 40m
1 stop
$521Multiple Airlines
Mon, Aug 17 - Tue, Aug 25
SWISS Logo
8:20 pm - 10:20 am
IAD
-
SOF
31h 00m
1 stop
SWISS Logo
1:05 pm - 4:45 pm
SOF
-
IAD
34h 40m
1 stop
$524SWISS
Mon, Aug 17 - Tue, Aug 25
Lufthansa Logo
10:20 pm - 6:40 pm
IAD
-
SOF
13h 20m
1 stop
Lufthansa Logo
7:00 pm - 1:35 pm
SOF
-
IAD
25h 35m
1 stop
$525Lufthansa
Mon, Aug 17 - Mon, Aug 24
Turkish Airlines Logo
1:20 pm - 8:45 am
IAD
-
SOF
12h 25m
1 stop
Turkish Airlines Logo
9:35 am - 7:50 pm
SOF
-
IAD
17h 15m
1 stop
$534Turkish Airlines
Wed, Apr 15 - Wed, Apr 29
British Airways Logo
9:30 pm - 8:30 pm
IAD
-
SOF
16h 00m
1 stop
British Airways Logo
8:10 pm - 7:40 pm
SOF
-
IAD
30h 30m
1 stop
$536British Airways
Tue, Aug 4 - Mon, Aug 24
Lufthansa Logo
10:20 pm - 11:00 pm
IAD
-
SOF
17h 40m
1 stop
Lufthansa Logo
6:40 pm - 4:05 pm
SOF
-
IAD
28h 25m
1 stop
$537Lufthansa
Wed, Aug 5 - Tue, Aug 25
Turkish Airlines Logo
1:20 pm - 8:45 am
IAD
-
SOF
12h 25m
1 stop
Turkish Airlines Logo
3:50 pm - 7:50 pm
SOF
-
IAD
35h 00m
1 stop
$538Turkish Airlines
Tue, Apr 21 - Thu, Apr 30
Austrian Airlines Logo
5:25 pm - 3:20 pm
IAD
-
SOF
14h 55m
1 stop
Austrian Airlines Logo
6:55 pm - 2:00 pm
SOF
-
IAD
26h 05m
1 stop
$543Austrian Airlines
Wed, Aug 26 - Wed, Sep 9
United Airlines Logo
11:08 am - 1:25 pm
BWI
-
SOF
19h 17m
2 stops
United Airlines Logo
6:10 am - 5:33 pm
SOF
-
BWI
18h 23m
2 stops
$605United Airlines
Wed, Apr 8 - Tue, Apr 14
United Airlines Logo
11:08 am - 1:05 pm
BWI
-
SOF
18h 57m
2 stops
United Airlines Logo
6:20 am - 5:28 pm
SOF
-
BWI
18h 08m
2 stops
$606United Airlines
Tue, Apr 21 - Fri, May 1

Lufthansa flights from Washington, D.C. to Sofia

Our best Lufthansa deals on Washington, D.C. to Sofia flight tickets
Lufthansa
Aug 17
IAD10:20 pmWashington, D.C. Dulles Intl
13h 20m
1 stop
SOF6:40 pmSofia
Aug 24
SOF7:00 pmSofia
25h 35m
1 stop
IAD1:35 pmWashington, D.C. Dulles Intl
$525
Lufthansa
Aug 5
IAD10:20 pmWashington, D.C. Dulles Intl
17h 40m
1 stop
SOF11:00 pmSofia
Aug 25
SOF6:40 pmSofia
28h 25m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$537
Lufthansa
Aug 19
IAD10:20 pmWashington, D.C. Dulles Intl
17h 40m
1 stop
SOF11:00 pmSofia
Sep 15
SOF6:10 amSofia
14h 25m
1 stop
IAD1:35 pmWashington, D.C. Dulles Intl
$547

KLM flights from Washington, D.C. to Sofia

Our best KLM deals on Washington, D.C. to Sofia flight tickets
KLM
Mar 31
BWI3:35 pmBaltimore/Washington
15h 25m
2 stops
SOF2:00 pmSofia
Apr 28
SOF7:00 amSofia
16h 49m
2 stops
BWI4:49 pmBaltimore/Washington
$595
KLM
Mar 31
IAD12:14 pmWashington, D.C. Dulles Intl
18h 46m
2 stops
SOF2:00 pmSofia
Apr 14
SOF7:00 amSofia
15h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$606
KLM
Apr 21
BWI3:33 pmBaltimore/Washington
15h 27m
2 stops
SOF2:00 pmSofia
May 2
SOF7:00 amSofia
16h 37m
2 stops
BWI4:37 pmBaltimore/Washington
$645

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Sofia 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 February 27, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Sofia 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

Mon 8/17

10:20 pm-6:40 pm

1 stop13h 20m

Sofia

Tue 8/25

1:05 pm-4:45 pm

1 stop34h 40m

$521

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 8/17

8:20 pm-10:20 am

1 stop31h 00m

Sofia

Tue 8/25

1:05 pm-4:45 pm

1 stop34h 40m

$524

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 8/17

10:20 pm-6:40 pm

1 stop13h 20m

Sofia

Mon 8/24

7:00 pm-1:35 pm

1 stop25h 35m

$525

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 4/15

1:20 pm-8:45 am

1 stop12h 25m

Sofia

Wed 4/29

9:35 am-7:50 pm

1 stop17h 15m

$534

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 8/4

9:30 pm-8:30 pm

1 stop16h 00m

Sofia

Mon 8/24

8:10 pm-7:40 pm

1 stop30h 30m

$536

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 8/5

10:20 pm-11:00 pm

1 stop17h 40m

Sofia

Tue 8/25

6:40 pm-4:05 pm

1 stop28h 25m

$537

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 4/21

1:20 pm-8:45 am

1 stop12h 25m

Sofia

Thu 4/30

3:50 pm-7:50 pm

1 stop35h 00m

$538

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 8/26

5:25 pm-3:20 pm

1 stop14h 55m

Sofia

Wed 9/9

6:55 pm-2:00 pm

1 stop26h 05m

$543

BaltimoreSofia

BWI - SOF

BWISOF

Baltimore/Washington

Wed 4/8

11:08 am-1:25 pm

2 stops19h 17m

Sofia

Tue 4/14

6:10 am-5:33 pm

2 stops18h 23m

$605

BaltimoreSofia

BWI - SOF

BWISOF

Baltimore/Washington

Tue 4/21

11:08 am-1:05 pm

2 stops18h 57m

Sofia

Fri 5/1

6:20 am-5:28 pm

2 stops18h 08m

$606

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 Sofia from

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

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 typical price of a round-trip flight between Washington, D.C. and Sofia?

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Washington, D.C. is in January. Flight prices, which tend to average around $607, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Sofia from Washington, D.C. during September instead. Flights to Sofia in September, while not as cheap as those in January, still average around $608.

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

You are more likely to see cheaper flights to Sofia from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $791 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from Washington, D.C. for as low as $729 on momondo.

Can stopping save me money on Washington, D.C. to Sofia flights?

You could potentially save up to 15% on your flight if you consider stops on a Washington, D.C. to Sofia flight.

When to book flights from Washington, D.C. to Sofia

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

Cheap Washington, D.C. to Sofia (WAS to SOF) flight deals and tips

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

Fastest flight time

12h 25m

Direct flights

None
The fastest flight from Washington, D.C. to Sofia takes 12h 25m
There are no direct flights from Washington, D.C. to Sofia. There are no popular flight routes from Washington, D.C. to Sofia.
  • How far is Washington, D.C. to Sofia by plane?

    The straight-line distance from Washington, D.C. to Sofia is 4912.7 mi. A reasonable flight in good conditions will take 12h 25m.

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

    Prices for flights from Washington, D.C. to Sofia Airport were last updated today.

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

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

  • What documentation or ID do you need to fly to Sofia Airport?

    The travel and health documents you'll need for your trip to Sofia Airport 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 Sofia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. to Sofia?

Best airlines flying from Washington, D.C. to Sofia

Compare and see reviews for airlines that fly from Washington, D.C. to Sofia with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $530Free CancellationRating
7.3
4,238 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $660Free CancellationRating
6.8
7,816 reviews
Search Lufthansa flights
United AirlinesPriceFrom $666Free CancellationRating
7.4
9,358 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $866Free CancellationRating
7.6
901 reviews
Search Austrian Airlines flights
ITA AirwaysPriceFrom $1,062Free CancellationRating
6.7
1,152 reviews
Search ITA Airways flights

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Bansko
Borovets
Velingrad
Sandanski

Why use momondo?

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

Finding the right flight to Sofia from Washington, D.C. 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 Sofia quick and easy, saving you time and money.

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

Yes. All flights to Sofia from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Washington, D.C. to Sofia 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 Washington, D.C. to Sofia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Sofia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sofia and let you know when they change.

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1 adult
Sun 3/29
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