$392+ Cheap flights from Sofia (SOF) to Washington, D.C. (WAS)
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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — WAS
Jul 5 — Jul 121
1 adult, Economy
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Find cheap flights from Sofia to Washington, D.C. 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Sofia to Washington, D.C. are usually found in June or March, booked 90 days in advance, depart on a Monday or Thursday and return on a Wednesday
Cheap flight deals from Sofia to Washington, D.C.
Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 30, 2025.
Round-trip from | $609 (Mytrip) |
|---|---|
One-way from | $392 (Kiwi.com) |
Popular in | September |
Cheapest in | June |
Average price | $591 |
Find flight deals from Sofia to Washington, D.C.
Cheapest flights from Sofia to Washington, D.C.Explore the most affordable flight options available from Sofia to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.
Explore the most affordable flight options available from Sofia to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.
This Mytrip deal was found by Cheapflights users on 6/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/106:15 amSOF - IAD
1 stop14h 15mLufthansa
Fri 7/2510:20 pmIAD - SOF
1 stop17h 40mLufthansa
Deal found 6/28![Lufthansa logo]()
$609
This Booking.com deal was found by Cheapflights users on 6/27. 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 12/1812:35 pmSOF - IAD
1 stop33h 05mMultiple Airlines
Sun 1/45:40 pmIAD - SOF
1 stop12h 30mMultiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$625
This Air France deal was found by Cheapflights users on 6/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/277:00 amSOF - IAD
1 stop19h 15mAir France
Sun 8/176:30 pmIAD - SOF
1 stop12h 30mAir France
Deal found 6/28![Air France logo]()
$633
This KLM deal was found by Cheapflights users on 6/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:00 amSOF - DCA
2 stops16h 33mKLM
Wed 9/172:50 pmDCA - SOF
2 stops16h 10mKLM
Deal found 6/28![KLM logo]()
$641
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Wed 7/162:05 pmSOF - IAD
2 stops23h 59mUnited Airlines
Wed 9/1710:15 pmIAD - SOF
1 stop17h 35mUnited Airlines
Deal found 6/28![United Airlines logo]()
$652
This Gotogate deal was found by Cheapflights users on 6/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/712:55 pmSOF - IAD
1 stop32h 45mITA Airways
Thu 7/314:30 pmIAD - SOF
1 stop17h 40mITA Airways
Deal found 6/29![ITA Airways logo]()
$658
This SWISS deal was found by Cheapflights users on 6/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1610:50 amSOF - IAD
1 stop12h 25mSWISS
Wed 9/1710:25 pmIAD - SOF
2 stops52h 40mSWISS
Deal found 6/28![SWISS logo]()
$661
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/146:00 amSOF - DCA
2 stops16h 22mUnited Airlines
Tue 8/51:00 pmDCA - SOF
2 stops16h 00mUnited Airlines
Deal found 6/29![United Airlines logo]()
$671
This Austrian Airlines deal was found by Cheapflights users on 6/28. 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.
Wed 7/168:00 amSOF - IAD
2 stops34h 10mAustrian Airlines
Wed 9/175:25 pmIAD - SOF
2 stops35h 15mAustrian Airlines
Deal found 6/28![Austrian Airlines logo]()
$704
This KLM deal was found by Cheapflights users on 6/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:00 amSOF - BWI
2 stops22h 51mKLM
Sat 8/22:20 pmBWI - SOF
2 stops16h 40mKLM
Deal found 6/28![KLM logo]()
$768
This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/292:00 pmSOF - DCA
2 stops38h 48mAir Canada
Tue 8/129:40 amDCA - SOF
2 stops25h 10mAir Canada
Deal found 6/30![Air Canada logo]()
$793
This British Airways deal was found by Cheapflights users on 6/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/308:00 pmSOF - IAD
1 stop26h 55mBritish Airways
Sat 7/510:45 pmIAD - SOF
1 stop14h 35mBritish Airways
Deal found 6/29![British Airways logo]()
$891
Cheapflights Fare Finder
Customize your flight search to find flights from Sofia to Washington, D.C. 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 June 30, 2025.
Use the filters below to find and compare flights from Sofia to Washington, D.C. that are best for you.
Fly from
Sofia
Fly to
Washington, D.C.
Route
Depart
Return
Price
SofiaWashington, D.C.
SOF - IAD
SOFIAD
Sofia
Thu 7/10
6:15 am-1:30 pm
1 stop14h 15m
Washington, D.C. Dulles Intl
Fri 7/25
10:20 pm-11:00 pm
1 stop17h 40m
$609
SofiaWashington, D.C.
SOF - IAD
SOFIAD
Sofia
Thu 12/18
12:35 pm-2:40 pm
1 stop33h 05m
Washington, D.C. Dulles Intl
Sun 1/4
5:40 pm-1:10 pm
1 stop12h 30m
$625
SofiaWashington, D.C.
SOF - IAD
SOFIAD
Sofia
Sun 7/27
7:00 am-7:15 pm
1 stop19h 15m
Washington, D.C. Dulles Intl
Sun 8/17
6:30 pm-2:00 pm
1 stop12h 30m
$633
SofiaWashington, D.C.
SOF - DCA
SOFDCA
Sofia
Wed 7/16
7:00 am-4:33 pm
2 stops16h 33m
Washington, D.C. Reagan-National
Wed 9/17
2:50 pm-2:00 pm
2 stops16h 10m
$641
SofiaWashington, D.C.
SOF - IAD
SOFIAD
Sofia
Wed 7/16
2:05 pm-7:04 am
2 stops23h 59m
Washington, D.C. Dulles Intl
Wed 9/17
10:15 pm-10:50 pm
1 stop17h 35m
$652
SofiaWashington, D.C.
SOF - IAD
SOFIAD
Sofia
Wed 7/16
10:50 am-4:15 pm
1 stop12h 25m
Washington, D.C. Dulles Intl
Wed 9/17
10:25 pm-10:05 am
2 stops52h 40m
$661
SofiaWashington, D.C.
SOF - DCA
SOFDCA
Sofia
Mon 7/14
6:00 am-3:22 pm
2 stops16h 22m
Washington, D.C. Reagan-National
Tue 8/5
1:00 pm-12:00 pm
2 stops16h 00m
$671
SofiaWashington, D.C.
SOF - IAD
SOFIAD
Sofia
Wed 7/16
8:00 am-11:10 am
2 stops34h 10m
Washington, D.C. Dulles Intl
Wed 9/17
5:25 pm-11:40 am
2 stops35h 15m
$704
SofiaBaltimore
SOF - BWI
SOFBWI
Sofia
Sat 7/26
7:00 am-10:51 pm
2 stops22h 51m
Baltimore/Washington
Sat 8/2
2:20 pm-2:00 pm
2 stops16h 40m
$768
SofiaWashington, D.C.
SOF - DCA
SOFDCA
Sofia
Tue 7/29
2:00 pm-9:48 pm
2 stops38h 48m
Washington, D.C. Reagan-National
Tue 8/12
9:40 am-5:50 pm
2 stops25h 10m
$793
Showing 1-10 of 35 results
Best time to book a flight from Sofia to Washington, D.C.
Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Sofia 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 Sofia to Washington, D.C.
How far ahead should I book a flight from Sofia to Washington, D.C.?
Use this chart to determine the optimal time to book a round-trip flight from Sofia to Washington, D.C.. Price data was last updated on June 27, 2025.
The best time to book flights from Sofia to Washington, D.C. is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Sofia to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Sofia to Washington, D.C. (average of $309). Flying from Sofia to Washington, D.C. in July is currently the most expensive (average of $345). 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 SOF to WAS?
Find hourly flight availability from Sofia to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.
When flying from Sofia to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 10% versus a flight in the morning.
Reviews of airlines servicing Washington, D.C.
Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated June 30, 2025.
Get a feel of what it's like to fly with KLM, LOT, and Austrian Airlines from Sofia to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.8
Entertainment
7.1
Overall
7.8
Comfort
7.7
Food
7.2
Crew
8.4
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Boarding
7.8
Entertainment
7.1
Overall
7.8
Comfort
7.7
Food
7.2
Crew
8.4
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Boarding
7.8
Entertainment
7.1
Overall
7.8
Comfort
7.7
Food
7.2
Crew
8.4
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Boarding
7.8
Entertainment
7.1
Overall
7.8
Comfort
7.7
Food
7.2
Crew
8.4
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Boarding
7.8
Entertainment
7.1
Overall
7.8
Comfort
7.7
Food
7.2
Crew
8.4
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Boarding
7.8
Entertainment
7.1
Overall
7.8
Comfort
7.7
Food
7.2
Crew
8.4
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2025
AMS - BOS
Related info for your journey
Find useful and relevant information for your journey from Sofia to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Sofia?
Book flights to Sofia if you plan to visit one of these locationsArlington
Woodbridge
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Tysons
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Alternative routes for Sofia to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Sofia to Washington, D.C.
Discover the top 4 airlines that operate flights from Sofia to Washington, D.C.. 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 June 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$520 | Average$658 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$572 | Average$690 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$584 | Average$647 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$614 | Average$655 | FlexibilityNo cancel fee | On-time77% |