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$455+ Cheap flights from Reagan-National (DCA) to Sofia (SOF)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SOF
jul 8 — jul 151
ter 7/8
ter 7/15
1 adult, Economy
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Cheap flight deals from Reagan-National to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Sofia (SOF). 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 julho 3, 2025.

Round-trip from

$651
(FlightHub)

One-way from

$455
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,068
From Washington, D.C. Reagan-National to Sofia
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One-way flight from Washington, D.C. Reagan-National to Sofia
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Highest demand for flights based on searches. 18% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Reagan-National to Sofia

Cheapest flights from Reagan-National to Sofia
Explore the most affordable flight options available from Reagan-National to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julho 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/306:00 amDCA - SOF
2 stops25h 10mAir Canada
qui 11/136:00 amSOF - DCA
2 stops22h 56mAir Canada
Deal found 7/2$651
This FlightHub deal was found by Cheapflights users on 7/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 8/2511:00 amDCA - SOF
2 stops17h 15mMultiple Airlines
seg 9/86:55 pmSOF - DCA
2 stops33h 56mMultiple Airlines
Deal found 7/3$703
This FlightHub deal was found by Cheapflights users on 7/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 7/276:05 amDCA - SOF
2 stops23h 00mITA Airways
qua 8/1312:55 pmSOF - DCA
2 stops36h 19mITA Airways
Deal found 7/3$798
This Justfly.com deal was found by Cheapflights users on 7/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 8/246:30 amDCA - SOF
2 stops24h 20mLOT
dom 9/76:40 pmSOF - DCA
2 stops35h 16mLOT
Deal found 7/2$959
This KLM deal was found by Cheapflights users on 7/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 8/302:40 pmDCA - SOF
2 stops16h 20mKLM
seg 9/157:00 amSOF - DCA
2 stops17h 05mKLM
Deal found 7/2$960
This United Airlines deal was found by Cheapflights users on 7/2. 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.
sáb 8/161:00 pmDCA - SOF
2 stops15h 15mUnited Airlines
dom 8/318:00 amSOF - DCA
2 stops17h 03mUnited Airlines
Deal found 7/2$1,058

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated julho 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Sofia that are best for you.

Fly from

Reagan-National

Fly to

Sofia

Route

Depart

Return

Price

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

qui 10/30

6:00 am-1:10 pm

2 stops25h 10m

Sofia

qui 11/13

6:00 am-9:56 pm

2 stops22h 56m

$651

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

seg 8/25

11:00 am-11:15 am

2 stops17h 15m

Sofia

seg 9/8

6:55 pm-9:51 pm

2 stops33h 56m

$703

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

dom 7/27

6:05 am-12:05 pm

2 stops23h 00m

Sofia

qua 8/13

12:55 pm-6:14 pm

2 stops36h 19m

$798

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

dom 8/24

6:30 am-1:50 pm

2 stops24h 20m

Sofia

dom 9/7

6:40 pm-10:56 pm

2 stops35h 16m

$959

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

sáb 8/30

2:40 pm-2:00 pm

2 stops16h 20m

Sofia

seg 9/15

7:00 am-5:05 pm

2 stops17h 05m

$960

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

sáb 8/16

1:00 pm-11:15 am

2 stops15h 15m

Sofia

dom 8/31

8:00 am-6:03 pm

2 stops17h 03m

$1,058

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

sex 8/15

9:59 am-9:45 am

2 stops40h 46m

$455

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

ter 8/5

11:00 am-12:05 pm

2 stops18h 05m

$463

Washington, D.C.Sofia

DCA - SOF

DCASOF

Washington, D.C. Reagan-National

ter 7/22

1:00 pm-12:00 pm

2 stops16h 00m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Reagan-National to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Reagan-National 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 Washington, D.C. Reagan-National Airport to Sofia

What is the cheapest time of day to fly from DCA to SOF?

Find hourly flight availability from Reagan-National to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julho 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Sofia as you normally would.

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated julho 3, 2025.
Get a feel of what it's like to fly with KLM, LOT, and United Airlines from Washington, D.C. Reagan-National Airport to Sofia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Boarding

7.8

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,366 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Boarding

7.8

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
LOT
7.6
Good
1,093 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Boarding

7.8

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,845 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Boarding

7.8

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Air Canada
7.1
Good
9,678 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Boarding

7.8

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
ITA Airways
6.7
Okay
1,000 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Boarding

7.8

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Sofia, you will be flying into Sofia. Sofia (SOF) is just 4.2 mi from the center of the city. Sofia is the only Sofia airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Sofia from Washington, D.C. Reagan-National on a regular basis.

  • Can I find deals for flights from Reagan-National to Sofia that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Sofia.

  • Can I find deals for business class flights from Reagan-National to Sofia?

    Yes. Cheapflights offers flight deals from Reagan-National to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Sofia (average of $632). Flying from Washington, D.C. Reagan-National Airport to Sofia in June is currently the most expensive (average of $1,189). 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.

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