HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$556+ Cheap flights from Sofia (SOF) to Washington

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — SEA
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sofia to Washington 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 Sofia to Washington

Keep the following information in mind while searching for Sofia to Washington flight deals. Data was last updated August 21, 2025.

Round-trip from

$809
(Gotogate)

One-way from

$556
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$891
From Sofia to Washington
Search Deals
One-way flight from Sofia to Washington
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Sofia to Washington

Cheapest flights from Sofia to Washington
Explore the most affordable flight options available from Sofia to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Gotogate deal was found by Cheapflights users on 8/20. 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.
Thu 12/116:00 amSOF - SEA
2 stops23h 16mMultiple Airlines
Mon 12/155:50 amSEA - SOF
2 stops30h 55mMultiple Airlines
Deal found 8/20$809
This Justfly.com deal was found by Cheapflights users on 8/21. 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.
Fri 10/39:15 pmSOF - SEA
1 stop23h 20mTurkish Airlines
Thu 10/167:10 pmSEA - SOF
1 stop33h 35mTurkish Airlines
Deal found 8/21$813
This United Airlines deal was found by Cheapflights users on 8/21. 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 9/106:15 amSOF - SEA
1 stop15h 40mUnited Airlines
Mon 9/223:36 pmSEA - SOF
2 stops21h 24mUnited Airlines
Deal found 8/21$816
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 9/116:15 amSOF - SEA
2 stops26h 01mUnited Airlines
Tue 9/162:20 pmSEA - SOF
1 stop17h 30mUnited Airlines
Deal found 8/21$817
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Tue 9/96:20 amSOF - SEA
2 stops22h 16mUnited Airlines
Thu 9/188:00 amSEA - SOF
2 stops28h 50mUnited Airlines
Deal found 8/21$818
This oojo deal was found by Cheapflights users on 8/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:15 pmSOF - SEA
1 stop23h 20mTurkish Airlines
Fri 9/267:10 pmSEA - SOF
1 stop33h 35mTurkish Airlines
Deal found 8/20$821
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Fri 9/126:15 amSOF - SEA
2 stops24h 27mUnited Airlines
Wed 9/177:00 amSEA - SOF
2 stops24h 50mUnited Airlines
Deal found 8/21$822
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Fri 9/56:15 amSOF - PDX
2 stops26h 10mUnited Airlines
Wed 9/106:15 amPDX - SOF
2 stops25h 35mUnited Airlines
Deal found 8/21$829
This KLM deal was found by Cheapflights users on 8/21. 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.
Thu 9/117:00 amSOF - SEA
1 stop19h 05mKLM
Thu 9/185:40 pmSEA - SOF
1 stop34h 20mKLM
Deal found 8/21$834
This Lufthansa deal was found by Cheapflights users on 8/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:00 pmSOF - SEA
1 stop33h 55mLufthansa
Thu 10/1610:00 amSEA - SOF
2 stops17h 05mLufthansa
Deal found 8/21$837
This KLM deal was found by Cheapflights users on 8/21. 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.
Thu 9/117:00 amSOF - SEA
2 stops19h 40mKLM
Fri 9/191:55 pmSEA - SOF
1 stop14h 05mKLM
Deal found 8/21$839
This KLM deal was found by Cheapflights users on 8/20. 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.
Mon 9/157:00 amSOF - SEA
1 stop19h 05mKLM
Fri 9/2610:25 amSEA - SOF
2 stops17h 35mKLM
Deal found 8/20$840

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sofia to Washington 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 August 21, 2025.
Use the filters below to find and compare flights from Sofia to Washington that are best for you.

Fly from

Sofia

Fly to

Washington

Route

Depart

Return

Price

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 12/11

6:00 am-7:16 pm

2 stops23h 16m

Seattle/Tacoma Intl

Mon 12/15

5:50 am-10:45 pm

2 stops30h 55m

$809

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 10/3

9:15 pm-10:35 am

1 stop23h 20m

Seattle/Tacoma Intl

Thu 10/16

7:10 pm-2:45 pm

1 stop33h 35m

$813

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 9/12

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Tue 9/16

5:02 am-11:00 pm

2 stops31h 58m

$816

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Sat 9/13

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Tue 9/16

7:00 am-11:00 pm

2 stops30h 00m

$816

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 9/12

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Sun 9/21

5:02 am-11:00 pm

2 stops31h 58m

$816

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 9/12

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Mon 9/22

2:29 pm-11:00 pm

2 stops22h 31m

$816

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Sat 9/13

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Sun 9/21

7:00 am-11:00 pm

2 stops30h 00m

$816

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Wed 9/10

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Sun 9/21

7:00 am-11:00 pm

2 stops30h 00m

$816

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Wed 9/10

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Tue 9/16

5:35 pm-11:00 pm

2 stops19h 25m

$816

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Wed 9/10

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Mon 9/22

3:36 pm-11:00 pm

2 stops21h 24m

$816

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 25 results
1
2
3

Best time to book a flight from Sofia to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Sofia to State of Washington (average of $238). Flying from Sofia to State of Washington in June is currently the most expensive (average of $388). 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 WA?

Find hourly flight availability from Sofia to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

When flying from Sofia to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Sofia to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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. Reviews last updated August 21, 2025.
Read through reviews of airlines operating flights from Sofia to Washington, such as United Airlines, Turkish Airlines, and Lufthansa. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,934 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,934 reviews
United Airlines
7.4
Good
8,934 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Turkish Airlines
7.3
Good
3,950 reviews
United Airlines
7.4
Good
8,934 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Lufthansa
6.8
Okay
7,344 reviews
United Airlines
7.4
Good
8,934 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from Sofia to Washington. 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 from for flights from Sofia to Washington?

    If you book a flight to Washington from Sofia, you will be flying from Sofia, which is the city’s only airport. Sofia (SOF) is located 4.2 mi from the center of Sofia.

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

    Departing from Sofia to State of Washington will take you 15h 40m. Airlines will cover a distance of 5862 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Sofia to State of Washington (average of $238). Flying from Sofia to State of Washington in June is currently the most expensive (average of $388). 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 Sofia to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Sofia to LaGuardia flights
Sofia to Newark flights
Sofia to O'Hare Intl flights
Sofia to Miami flights
Sofia to Fort Lauderdale flights
Sofia to John F Kennedy Intl flights
Sofia to Los Angeles flights
Sofia to Boston flights
Sofia to Detroit flights
Sofia to San Francisco flights
Sofia to West Palm Beach flights
Sofia to Dulles Intl flights
Sofia to Seattle flights
Sofia to Tampa flights
Sofia to Philadelphia flights
Sofia to Las Vegas flights
Sofia to Ontario flights
Sofia to Charlotte flights
Sofia to Baltimore flights
Sofia to Dallas/Fort Worth flights
Sofia to George Bush Intcntl flights
Sofia to Santa Ana flights
Sofia to Minneapolis flights
Sofia to Denver flights
Sofia to Midway flights
Sofia to San Jose flights
Sofia to Providence flights
Sofia to Orlando flights
Sofia to Fayetteville flights
Sofia to Buffalo flights
Sofia to Raleigh flights
Sofia to Tulsa flights
Sofia to Boise flights
Sofia to Oakland flights
Sofia to Portland flights
Sofia to Indianapolis flights
Sofia to Norfolk flights
Sofia to Honolulu flights
Sofia to Richmond flights
Sofia to Florence flights
Sofia to Burbank flights

Top 3 airlines flying from Sofia to Washington

Discover the top 3 airlines that operate flights from Sofia to Washington. 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$791Average$877FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$795Average$836FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$824Average$937FlexibilityNo 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.