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$519+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — SEA
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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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 November 18, 2025.

This United Airlines deal was found by Cheapflights users on 11/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:05 amSOF - PDX
2 stops26h 46mUnited Airlines
Sun 11/3010:05 amPDX - SOF
2 stops26h 40mUnited Airlines
Deal found 11/16$918
This Air France deal was found by Cheapflights users on 11/16. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:00 amSOF - PDX
2 stops22h 19mMultiple Airlines
Sun 11/301:25 pmPDX - SOF
1 stop14h 40mMultiple Airlines
Deal found 11/16$997
This United Airlines deal was found by Cheapflights users on 11/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:25 pmSOF - SEA
2 stops41h 51mUnited Airlines
Wed 1/72:10 pmSEA - SOF
2 stops18h 10mUnited Airlines
Deal found 11/16$1,023
This Gurufare deal was found by Cheapflights users on 11/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:00 pmSOF - SEA
2 stops38h 46mLufthansa
Wed 1/73:10 pmSEA - SOF
1 stop17h 10mLufthansa
Deal found 11/16$1,132
This Gurufare deal was found by Cheapflights users on 11/18. 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.
Sun 12/217:05 pmSOF - SEA
1 stop27h 05mLufthansa
Sat 1/32:00 pmSEA - SOF
1 stop22h 45mLufthansa
Deal found 11/18$1,167
This KLM deal was found by Cheapflights users on 11/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:00 amSOF - PDX
1 stop14h 25mKLM
Sun 11/301:25 pmPDX - SOF
1 stop14h 40mKLM
Deal found 11/16$1,188
This United Airlines deal was found by Cheapflights users on 11/18. 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 12/216:05 amSOF - SEA
2 stops44h 19mUnited Airlines
Sat 1/37:05 amSEA - SOF
2 stops29h 40mUnited Airlines
Deal found 11/18$1,217
This Air Canada deal was found by Cheapflights users on 11/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amSOF - SEA
3 stops26h 36mAir Canada
Wed 1/75:50 amSEA - SOF
3 stops22h 00mAir Canada
Deal found 11/16$1,946
This American Airlines deal was found by Cheapflights users on 11/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/212:30 pmSOF - SEA
2 stops37h 50mMultiple Airlines
Fri 1/212:59 amSEA - SOF
2 stops26h 01mMultiple Airlines
Deal found 11/18$2,780

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 November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$808
(Kiwi.com)

One-way from

$519
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$896
Provider with most accurate pricing for Sofia-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Seattle/Tacoma Intl flights.
Search Deals
From Sofia to Washington
Search Deals
One-way flight from Sofia to Washington
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 18, 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

Tue 3/3

7:00 am-11:35 am

1 stop14h 35m

Seattle/Tacoma Intl

Tue 3/24

2:40 pm-1:55 pm

1 stop14h 15m

$864

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Wed 3/4

7:00 am-11:35 am

1 stop14h 35m

Seattle/Tacoma Intl

Tue 3/24

9:55 am-1:55 pm

2 stops19h 00m

$869

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 4/23

7:00 am-11:35 am

1 stop14h 35m

Seattle/Tacoma Intl

Thu 5/28

5:35 pm-2:00 pm

1 stop34h 25m

$879

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 3/5

6:00 am-12:10 pm

1 stop16h 10m

Seattle/Tacoma Intl

Wed 3/25

4:10 pm-6:20 pm

1 stop17h 10m

$893

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 4/23

6:10 am-3:03 pm

2 stops42h 53m

Seattle/Tacoma Intl

Thu 5/28

1:45 pm-6:40 pm

2 stops18h 55m

$893

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 3/6

6:10 am-12:10 pm

1 stop16h 00m

Seattle/Tacoma Intl

Tue 3/24

8:59 am-1:45 pm

3 stops19h 46m

$894

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 3/6

6:10 am-10:59 pm

2 stops26h 49m

Seattle/Tacoma Intl

Sun 3/22

7:32 pm-10:45 pm

2 stops18h 13m

$898

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 4/24

2:20 pm-11:35 am

1 stop31h 15m

Seattle/Tacoma Intl

Tue 4/28

1:35 pm-8:40 pm

1 stop21h 05m

$919

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Wed 4/22

7:00 am-11:20 am

1 stop14h 20m

Portland

Sun 4/26

1:15 pm-2:00 pm

1 stop14h 45m

$947

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Sun 3/29

6:15 am-1:26 pm

2 stops41h 11m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 29 results
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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, May is the cheapest month in which you can book a flight from Sofia to State of Washington (average of $778). Flying from Sofia to State of Washington in November is currently the most expensive (average of $876). 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 November 18, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 16% on flights from Sofia to State of Washington by exploring options for tickets in the evening.

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 November 18, 2025.
Read through reviews of airlines operating flights from Sofia to Washington, such as 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.
Turkish Airlines
7.3
Good
4,047 reviews

Comfort

7.3

Entertainment

7.4

Overall

7.3

Boarding

7.3

Food

7.4

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Joel,Nov 2025

IST - IAD

The flight was fine except half the bathrooms in economy class were out of order and taped shut. Turkish Airlines had changed or ultimately canceled the flight to Istanbul several times and the vendor that kayak uses to purchase the tickets then canceled our reservations without informing us. When I called for a boarding pass 24 hours before the flight, we found out that our reservations have been canceled and had to act quickly to get new reservations at double the expense… Using the same vendor who had gotten reimbursed for the original flights.
Turkish Airlines
7.3
Good
4,047 reviews
Turkish Airlines
7.3
Good
4,047 reviews

Comfort

7.3

Entertainment

7.4

Overall

7.3

Boarding

7.3

Food

7.4

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Joel,Nov 2025

IST - IAD

The flight was fine except half the bathrooms in economy class were out of order and taped shut. Turkish Airlines had changed or ultimately canceled the flight to Istanbul several times and the vendor that kayak uses to purchase the tickets then canceled our reservations without informing us. When I called for a boarding pass 24 hours before the flight, we found out that our reservations have been canceled and had to act quickly to get new reservations at double the expense… Using the same vendor who had gotten reimbursed for the original flights.
Lufthansa
6.8
Okay
7,576 reviews
Turkish Airlines
7.3
Good
4,047 reviews

Comfort

7.3

Entertainment

7.4

Overall

7.3

Boarding

7.3

Food

7.4

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Joel,Nov 2025

IST - IAD

The flight was fine except half the bathrooms in economy class were out of order and taped shut. Turkish Airlines had changed or ultimately canceled the flight to Istanbul several times and the vendor that kayak uses to purchase the tickets then canceled our reservations without informing us. When I called for a boarding pass 24 hours before the flight, we found out that our reservations have been canceled and had to act quickly to get new reservations at double the expense… Using the same vendor who had gotten reimbursed for the original flights.

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 14h 35m. Airlines will cover a distance of 5862 mi.

  • 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, May is the cheapest month in which you can book a flight from Sofia to State of Washington (average of $778). Flying from Sofia to State of Washington in November is currently the most expensive (average of $876). 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

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Alternative routes for Sofia to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Sofia to Washington

Discover the top 2 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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$791Average$878FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$824Average$930FlexibilityNo cancel feeOn-time77%

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