HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sofia

$230+ Cheap flights from Washington 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Sofia 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.

Cheap flight deals from Washington to Sofia

Keep the following information in mind while searching for Washington to Sofia flight deals. Data was last updated January 16, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$473
(Mytrip)

One-way from

$230
(Air France)

Popular in

June

Cheapest in

October

Average price

$615
Provider with most accurate pricing for Seattle/Tacoma Intl-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sofia flights.
Search Deals
From Washington to Sofia
Search Deals
One-way flight from Washington to Sofia
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Washington to Sofia

Cheapest flights from Washington to Sofia
Explore the most affordable flight options available from Washington to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2026.

This Mytrip deal was found by Cheapflights users on 1/15. 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.
Wed 4/15:50 am
SEA
-
SOF
2 stops26h 50m
Multiple Airlines
Wed 4/86:20 am
SOF
-
SEA
1 stop16h 00m
Multiple Airlines
Deal found 1/15$473
This FlightHub deal was found by Cheapflights users on 1/16. 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.
Tue 2/33:52 pm
PDX
-
SOF
2 stops20h 53m
Lufthansa
Tue 2/176:00 am
SOF
-
PDX
2 stops28h 34m
Lufthansa
Deal found 1/16$485
This FlightHub deal was found by Cheapflights users on 1/15. 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.
Wed 4/16:50 pm
SEA
-
SOF
1 stop13h 50m
Lufthansa
Wed 4/86:20 am
SOF
-
SEA
1 stop16h 00m
Lufthansa
Deal found 1/15$486
This KLM deal was found by Cheapflights users on 1/15. 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.
Tue 4/141:05 pm
PDX
-
SOF
1 stop14h 55m
KLM
Thu 4/307:00 am
SOF
-
PDX
1 stop14h 10m
KLM
Deal found 1/15$490
This FlightHub deal was found by Cheapflights users on 1/15. 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.
Wed 2/183:50 pm
PDX
-
SOF
2 stops20h 55m
Lufthansa
Thu 2/262:35 pm
SOF
-
PDX
2 stops42h 05m
Lufthansa
Deal found 1/15$491
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:00 pm
SEA
-
SOF
1 stop13h 50m
Multiple Airlines
Wed 3/47:55 am
SOF
-
SEA
2 stops21h 08m
Multiple Airlines
Deal found 1/14$492
This KAYAK deal was found by Cheapflights users on 1/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:35 pm
SEA
-
SOF
1 stop20h 55m
British Airways
Mon 9/218:10 pm
SOF
-
SEA
1 stop32h 15m
British Airways
Deal found 1/16$493
This United Airlines deal was found by Cheapflights users on 1/15. 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 2/253:10 pm
SEA
-
SOF
1 stop17h 10m
United Airlines
Tue 3/36:00 am
SOF
-
SEA
1 stop16h 10m
United Airlines
Deal found 1/15$497
This Gurufare deal was found by Cheapflights users on 1/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/143:15 pm
PDX
-
SOF
2 stops21h 55m
Lufthansa
Thu 4/302:10 pm
SOF
-
PDX
2 stops20h 38m
Lufthansa
Deal found 1/15$498
This KAYAK deal was found by Cheapflights users on 1/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:40 am
SEA
-
SOF
2 stops23h 50m
British Airways
Wed 9/239:30 pm
SOF
-
SEA
1 stop24h 05m
British Airways
Deal found 1/16$498
This KAYAK deal was found by Cheapflights users on 1/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:32 am
SEA
-
SOF
2 stops45h 38m
British Airways
Mon 10/198:00 pm
SOF
-
SEA
1 stop25h 35m
British Airways
Deal found 1/14$501
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Sun 3/155:30 am
PDX
-
SOF
2 stops32h 15m
United Airlines
Tue 3/246:00 am
SOF
-
PDX
2 stops24h 52m
United Airlines
Deal found 1/15$502

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 January 16, 2026.
Use the filters below to find and compare flights from Washington to Sofia that are best for you.

Fly from

Washington

Fly to

Sofia

Route

Depart

Return

Price

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 4/1

5:50 am-6:40 pm

2 stops26h 50m

Sofia

Wed 4/8

6:20 am-12:20 pm

1 stop16h 00m

$473

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 4/1

2:24 pm-11:10 pm

2 stops22h 46m

Sofia

Wed 4/8

6:20 am-12:20 pm

1 stop16h 00m

$488

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 3/24

10:55 am-10:45 pm

2 stops26h 50m

Sofia

Tue 4/28

6:10 am-12:20 pm

1 stop16h 10m

$497

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 4/14

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Thu 4/30

7:00 am-6:52 pm

2 stops21h 52m

$500

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 3/15

5:30 am-10:45 pm

2 stops32h 15m

Sofia

Tue 3/24

6:00 am-9:52 pm

2 stops24h 52m

$502

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 2/18

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

Thu 2/26

7:00 am-3:11 pm

2 stops18h 11m

$502

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 3/16

11:10 pm-6:20 pm

2 stops34h 10m

Sofia

Tue 3/24

6:00 am-9:52 pm

2 stops24h 52m

$502

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 2/25

7:00 am-10:45 pm

2 stops29h 45m

Sofia

Thu 3/5

6:00 am-12:10 pm

1 stop16h 10m

$502

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 2/25

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Tue 3/3

6:00 am-10:16 pm

2 stops26h 16m

$505

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 3/14

1:39 pm-6:20 pm

2 stops43h 41m

Sofia

Tue 3/24

6:00 am-9:52 pm

2 stops24h 52m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 20 results
1
2

Best time to book a flight from Washington to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Washington 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 to Sofia

What is the cheapest month to book a flight from State of Washington to Sofia?

Currently, July is the cheapest month in which you can book a flight from State of Washington to Sofia (average of $513). Flying from State of Washington to Sofia in June is currently the most expensive (average of $943). 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.

Related info for your journey

Find useful and relevant information for your journey from Washington 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?

    Located just 4.2 mi from the city center, Sofia (SOF) is the airport most travelers will use when flying to Sofia from Washington.

  • How long is the flight from State of Washington to Sofia?

    There are many flights that can get you from State of Washington to Sofia in 14h 55m. Fly via Lufthansa, United Airlines, or KLM to get the fastest option. There are 5985 mi between State of Washington and Sofia. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from State of Washington to Sofia?

    When deciding which route to take from State of Washington to Sofia consider Seattle/Tacoma Intl - Sofia, Portland - Sofia or Spokane - Sofia as they are the most popular.

  • Can I find deals for flights from Washington to Sofia that include hotel bookings?

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

  • How can I find direct flights from Washington to Sofia?

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

  • Can I find deals for business class flights from Washington to Sofia?

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Sofia?

    Currently, July is the cheapest month in which you can book a flight from State of Washington to Sofia (average of $513). Flying from State of Washington to Sofia in June is currently the most expensive (average of $943). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Sofia flights
Newark to Sofia flights
O'Hare Intl to Sofia flights
Boston to Sofia flights
LaGuardia to Sofia flights
Los Angeles to Sofia flights
Miami to Sofia flights
Dulles Intl to Sofia flights
Dallas/Fort Worth to Sofia flights
San Francisco to Sofia flights
Reagan-National to Sofia flights
Sky Harbor Intl to Sofia flights
Midway to Sofia flights
Seattle to Sofia flights
Atlanta to Sofia flights
Baltimore to Sofia flights
Santa Ana to Sofia flights
San Jose to Sofia flights
Love Field to Sofia flights
Pittsburgh to Sofia flights
Denver to Sofia flights
Orlando to Sofia flights
Minneapolis to Sofia flights
Salt Lake City to Sofia flights
Fort Lauderdale to Sofia flights
Charlotte to Sofia flights
Las Vegas to Sofia flights
Detroit to Sofia flights
Indianapolis to Sofia flights
Philadelphia to Sofia flights
Austin to Sofia flights
Tampa to Sofia flights
Hobby to Sofia flights
Richmond to Sofia flights
George Bush Intcntl to Sofia flights
Oakland to Sofia flights
Buffalo to Sofia flights
Nashville to Sofia flights
Raleigh to Sofia flights
St. Louis to Sofia flights
Sacramento to Sofia flights
Myrtle Beach to Sofia flights
Portland to Sofia flights
New Orleans to Sofia flights
Kansas City to Sofia flights
Anchorage to Sofia flights
Monterey to Sofia flights
West Palm Beach to Sofia flights
South Bend to Sofia flights

Top 5 airlines flying from Washington to Sofia

Discover the top 5 airlines that operate flights from Washington to Sofia. 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 January 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$541Average$847FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$545Average$830FlexibilityNo cancel feeOn-time69%
KLMCheapest$548Average$972FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$555Average$718FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$587Average$829FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.