HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$428+ Cheap flights from Sofia (SOF) to Seattle (SEA)

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — SEA
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sofia to Seattle 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 Seattle

Cheapest flights from Sofia to Seattle
Explore the most affordable flight options available from Sofia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 30, 2026.

This Mytrip deal was found by Cheapflights users on 5/28. 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 7/89:40 pm
SOF
-
SEA
3 stops46h 00m
Multiple Airlines
Sat 7/253:40 pm
SEA
-
SOF
2 stops21h 55m
Multiple Airlines
Deal found 5/28$919
This Gotogate deal was found by Cheapflights users on 5/28. 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.
Wed 7/83:50 pm
SOF
-
SEA
1 stop35h 30m
Turkish Airlines
Sat 7/257:15 pm
SEA
-
SOF
1 stop15h 00m
Turkish Airlines
Deal found 5/28$1,001
This Booking.com deal was found by Cheapflights users on 5/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/73:50 pm
SOF
-
SEA
1 stop35h 25m
Turkish Airlines
Sat 6/207:15 pm
SEA
-
SOF
1 stop33h 45m
Turkish Airlines
Deal found 5/25$1,002
This Booking.com deal was found by Cheapflights users on 5/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/121:05 pm
SOF
-
SEA
1 stop31h 35m
Turkish Airlines
Sun 7/197:15 pm
SEA
-
SOF
1 stop33h 45m
Turkish Airlines
Deal found 5/28$1,003
This Booking.com deal was found by Cheapflights users on 5/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/73:50 pm
SOF
-
SEA
1 stop35h 25m
Turkish Airlines
Sun 6/217:15 pm
SEA
-
SOF
1 stop15h 00m
Turkish Airlines
Deal found 5/28$1,004
This Flightnetwork deal was found by Cheapflights users on 5/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:45 pm
SOF
-
SEA
1 stop29h 25m
Turkish Airlines
Fri 1/17:05 pm
SEA
-
SOF
1 stop30h 00m
Turkish Airlines
Deal found 5/27$1,020
This United Airlines deal was found by Cheapflights users on 5/27. 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 12/176:25 am
SOF
-
SEA
1 stop15h 35m
United Airlines
Fri 1/11:55 pm
SEA
-
SOF
2 stops22h 50m
United Airlines
Deal found 5/27$1,023
This United Airlines deal was found by Cheapflights users on 5/28. 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 7/126:20 am
SOF
-
SEA
2 stops26h 36m
United Airlines
Sun 7/193:41 pm
SEA
-
SOF
2 stops16h 59m
United Airlines
Deal found 5/28$1,029
This United Airlines deal was found by Cheapflights users on 5/30. 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 7/26:30 am
SOF
-
SEA
2 stops23h 06m
United Airlines
Fri 7/317:00 am
SEA
-
SOF
2 stops30h 15m
United Airlines
Deal found 5/30$1,038
This Expedia deal was found by Cheapflights users on 5/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/153:40 pm
SOF
-
SEA
2 stops41h 52m
Multiple Airlines
Sun 6/286:50 pm
SEA
-
SOF
1 stop18h 25m
Multiple Airlines
Deal found 5/30$1,042
This Expedia deal was found by Cheapflights users on 5/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:20 am
SOF
-
SEA
1 stop16h 00m
Multiple Airlines
Sat 6/207:20 pm
SEA
-
SOF
2 stops41h 55m
Multiple Airlines
Deal found 5/26$1,045

Find flight deals from Sofia to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Seattle (SEA). 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 May 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$919
(Mytrip)

One-way from

$428
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$1,064
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 Seattle/Tacoma Intl
Search Deals
One-way flight from Sofia to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sofia to Seattle 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 May 30, 2026.
Use the filters below to find and compare flights from Sofia to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 6/15

3:50 pm-5:20 pm

1 stop35h 30m

Seattle/Tacoma Intl

Sun 6/28

7:15 pm-3:00 pm

1 stop33h 45m

$1,002

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Sun 7/12

6:20 am-10:56 pm

2 stops26h 36m

Seattle/Tacoma Intl

Sun 7/19

3:41 pm-6:40 pm

2 stops16h 59m

$1,029

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 7/2

6:30 am-7:36 pm

2 stops23h 06m

Seattle/Tacoma Intl

Fri 7/31

7:00 am-11:15 pm

2 stops30h 15m

$1,038

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 6/15

3:40 pm-11:32 pm

2 stops41h 52m

Seattle/Tacoma Intl

Sun 6/28

6:50 pm-11:15 pm

1 stop18h 25m

$1,042
Quickest round-trip

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Wed 7/8

6:10 am-12:20 pm

2 stops16h 10m

Seattle/Tacoma Intl

Sat 7/25

2:10 pm-10:50 pm

1 stop22h 40m

$1,060

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Sun 7/12

4:00 pm-5:20 pm

3 stops35h 20m

Seattle/Tacoma Intl

Sun 7/19

3:40 pm-12:10 am

3 stops22h 30m

$1,171
Cheapest one-way

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 8/27

2:40 pm-4:00 pm

3 stops35h 20m

$433

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 6/4

2:40 pm-11:39 pm

3 stops42h 59m

$486

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 10/8

12:55 pm-8:58 pm

2 stops42h 03m

$490

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 7/24

5:15 pm-9:40 am

3 stops50h 25m

$668

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/25

Showing 1-10 of 12 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Sofia-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sofia to Seattle

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

What is the cheapest month to book a flight from Sofia to Seattle?

Currently, March is the cheapest month in which you can book a flight from Sofia to Seattle (average of $863). Flying from Sofia to Seattle in July is currently the most expensive (average of $1,112). 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.

How much does it cost to fly round-trip from Sofia to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated May 30, 2026.
Read through reviews of airlines operating flights from Sofia to Seattle, such as Turkish Airlines and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.4
Good
4,398 reviews

Entertainment

7.5

Food

7.5

Comfort

7.3

Crew

7.8

Boarding

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Muhammad,Jan 2026

ORD - DFW

Great, customer service agent at O’hare was able to change the flight due to snow storm. Thank you
Turkish Airlines
7.4
Good
4,398 reviews
Turkish Airlines
7.4
Good
4,398 reviews

Entertainment

7.5

Food

7.5

Comfort

7.3

Crew

7.8

Boarding

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Muhammad,Jan 2026

ORD - DFW

Great, customer service agent at O’hare was able to change the flight due to snow storm. Thank you
Lufthansa
6.8
Okay
8,031 reviews
Turkish Airlines
7.4
Good
4,398 reviews

Entertainment

7.5

Food

7.5

Comfort

7.3

Crew

7.8

Boarding

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Muhammad,Jan 2026

ORD - DFW

Great, customer service agent at O’hare was able to change the flight due to snow storm. Thank you

Related info for your journey

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

  • How long is the flight from Sofia to Seattle?

    Airlines like United Airlines and Lufthansa fly from Sofia to Seattle in about 16h 10m. The time it takes to get you to your destination can typically vary by up to 10h 26m. Sofia and Seattle are separated by a distance of 5862 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Sofia to Seattle round-trip?

    Currently priced at $844, Turkish Airlines will fly you from Sofia to Seattle and back. In addition to Turkish Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Lufthansa for as low as $862. Turkish Airlines is priced at 13% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sofia to Seattle 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 Seattle?

    Currently, March is the cheapest month in which you can book a flight from Sofia to Seattle (average of $863). Flying from Sofia to Seattle in July is currently the most expensive (average of $1,112). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Lacey
Ocean Shores
Olympia
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline

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.

Top 2 airlines flying from Sofia to Seattle

Discover the top 2 airlines that operate flights from Sofia to Seattle. 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 May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$844Average$953FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$862Average$916FlexibilityNo cancel feeOn-time76%

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.