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$426+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — SEA
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$818
(KLM)

One-way from

$426
(Kiwi.com)

Popular in

July

Cheapest in

June

Average price

$990
Provider with most accurate pricing for Sofia-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Sofia-Seattle/Tacoma Intl flights.
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From Sofia to Washington
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One-way flight from Sofia to Washington
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 14, 2026.

This KLM deal was found by Cheapflights users on 1/13. 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.
Fri 1/237:00 am
SOF
-
PDX
1 stop14h 25m
Multiple Airlines
Wed 1/287:00 am
PDX
-
SOF
2 stops21h 05m
Multiple Airlines
Deal found 1/13$813
This KLM deal was found by Cheapflights users on 1/13. 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.
Fri 1/237:00 am
SOF
-
PDX
1 stop14h 25m
KLM
Wed 1/281:25 pm
PDX
-
SOF
1 stop14h 40m
KLM
Deal found 1/13$814
This KLM deal was found by Cheapflights users on 1/13. 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 4/237:00 am
SOF
-
SEA
1 stop14h 45m
Multiple Airlines
Thu 5/281:30 pm
SEA
-
SOF
1 stop14h 30m
Multiple Airlines
Deal found 1/13$818
This KLM deal was found by Cheapflights users on 1/13. 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 4/237:00 am
SOF
-
SEA
1 stop14h 45m
KLM
Thu 5/289:30 am
SEA
-
SOF
2 stops18h 30m
KLM
Deal found 1/13$827
This KLM deal was found by Cheapflights users on 1/12. 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.
Fri 2/277:00 am
SOF
-
SEA
1 stop14h 40m
KLM
Fri 3/69:50 am
SEA
-
SOF
2 stops18h 15m
KLM
Deal found 1/12$900
This United Airlines deal was found by Cheapflights users on 1/12. 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 2/276:10 am
SOF
-
SEA
3 stops24h 51m
United Airlines
Fri 3/612:36 pm
SEA
-
SOF
2 stops24h 09m
United Airlines
Deal found 1/12$925
This Lufthansa deal was found by Cheapflights users on 1/12. 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 2/276:05 am
SOF
-
SEA
1 stop17h 15m
Lufthansa
Fri 3/63:10 pm
SEA
-
SOF
1 stop17h 10m
Lufthansa
Deal found 1/12$932
This Gotogate deal was found by Cheapflights users on 1/12. 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.
Fri 1/236:05 am
SOF
-
PDX
2 stops22h 25m
Lufthansa
Wed 1/287:45 am
PDX
-
SOF
2 stops29h 00m
Lufthansa
Deal found 1/12$1,194
This United Airlines deal was found by Cheapflights users on 1/13. 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 1/237:55 am
SOF
-
PDX
2 stops23h 54m
United Airlines
Wed 1/281:24 pm
PDX
-
SOF
3 stops18h 56m
United Airlines
Deal found 1/13$1,298
This Air Canada deal was found by Cheapflights users on 1/12. 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.
Fri 1/236:10 am
SOF
-
PDX
3 stops37h 05m
Air Canada
Wed 1/289:50 am
PDX
-
SOF
3 stops22h 30m
Air Canada
Deal found 1/12$1,582

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 January 14, 2026.
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

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 1/23

7:00 am-11:25 am

1 stop14h 25m

Portland

Wed 1/28

7:00 am-2:05 pm

2 stops21h 05m

$813

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 1/23

7:00 am-11:25 am

1 stop14h 25m

Portland

Wed 1/28

1:25 pm-2:05 pm

1 stop14h 40m

$814

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 4/23

7:00 am-11:45 am

1 stop14h 45m

Seattle/Tacoma Intl

Thu 5/28

1:30 pm-2:00 pm

1 stop14h 30m

$818

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 4/23

7:00 am-11:45 am

1 stop14h 45m

Seattle/Tacoma Intl

Thu 5/28

9:30 am-2:00 pm

2 stops18h 30m

$827

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 2/27

7:00 am-8:46 pm

2 stops23h 46m

Seattle/Tacoma Intl

Fri 3/6

9:50 am-2:05 pm

2 stops18h 15m

$910

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 2/27

6:10 am-9:01 pm

3 stops24h 51m

Seattle/Tacoma Intl

Fri 3/6

12:36 pm-10:45 pm

2 stops24h 09m

$925

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 2/27

6:05 am-1:20 pm

1 stop17h 15m

Seattle/Tacoma Intl

Fri 3/6

3:10 pm-6:20 pm

1 stop17h 10m

$932

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 1/23

6:05 am-6:30 pm

2 stops22h 25m

Portland

Wed 1/28

7:45 am-10:45 pm

2 stops29h 00m

$1,194

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 1/23

7:55 am-9:49 pm

2 stops23h 54m

Portland

Wed 1/28

1:24 pm-6:20 pm

3 stops18h 56m

$1,298

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 1/23

6:10 am-9:15 am

3 stops37h 05m

Portland

Wed 1/28

9:50 am-6:20 pm

3 stops22h 30m

$1,582

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 19 results
1
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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, February is the cheapest month in which you can book a flight from Sofia to State of Washington (average of $791). Flying from Sofia to State of Washington in May is currently the most expensive (average of $950). 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.

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 January 14, 2026.
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
4,161 reviews

Comfort

7.3

Boarding

7.3

Entertainment

7.4

Crew

7.7

Food

7.4

Overall

7.3

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
4,161 reviews
Turkish Airlines
7.3
Good
4,161 reviews

Comfort

7.3

Boarding

7.3

Entertainment

7.4

Crew

7.7

Food

7.4

Overall

7.3

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
7,709 reviews
Turkish Airlines
7.3
Good
4,161 reviews

Comfort

7.3

Boarding

7.3

Entertainment

7.4

Crew

7.7

Food

7.4

Overall

7.3

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 25m. Airlines will cover a distance of 5985 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, February is the cheapest month in which you can book a flight from Sofia to State of Washington (average of $791). Flying from Sofia to State of Washington in May is currently the most expensive (average of $950). 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$794Average$887FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$824Average$972FlexibilityNo cancel feeOn-time77%

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