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Bulgaria

$413+ Cheap flights from Seattle (SEA) to Bulgaria

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Seattle to Bulgaria

Keep the following information in mind while searching for Seattle to Bulgaria flight deals. Data was last updated August 14, 2025.

Round-trip from

$579
(FlightHub)

One-way from

$413
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$942
From Seattle/Tacoma Intl to Bulgaria
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One-way flight from Seattle/Tacoma Intl to Bulgaria
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Highest demand for flights based on searches. 2% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to Bulgaria

Cheapest flights from Seattle to Bulgaria
Explore the most affordable flight options available from Seattle to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:10 pmSEA - SOF
1 stop33h 35mTurkish Airlines
Thu 10/29:25 amSOF - SEA
1 stop17h 50mTurkish Airlines
Deal found 8/13$579
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:30 pmSEA - SOF
1 stop34h 05mTurkish Airlines
Wed 9/173:35 pmSOF - SEA
1 stop29h 00mTurkish Airlines
Deal found 8/13$587
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:10 pmSEA - SOF
1 stop27h 25mTurkish Airlines
Fri 10/109:15 pmSOF - SEA
1 stop30h 00mTurkish Airlines
Deal found 8/14$589
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:30 pmSEA - SOF
1 stop16h 15mTurkish Airlines
Thu 10/29:25 amSOF - SEA
1 stop17h 50mTurkish Airlines
Deal found 8/13$604
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:10 pmSEA - SOF
1 stop33h 35mTurkish Airlines
Mon 11/310:05 amSOF - SEA
1 stop17h 00mTurkish Airlines
Deal found 8/12$624
This Ovago deal was found by Cheapflights users on 8/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/297:10 pmSEA - SOF
1 stop15h 15mTurkish Airlines
Tue 11/44:00 pmSOF - SEA
1 stop35h 05mTurkish Airlines
Deal found 8/12$626
This Turkish Airlines deal was found by Cheapflights users on 8/12. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:30 pmSEA - SOF
1 stop21h 55mTurkish Airlines
Fri 10/319:40 pmSOF - SEA
1 stop29h 25mTurkish Airlines
Deal found 8/12$653
This KLM deal was found by Cheapflights users on 8/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:15 amSEA - SOF
2 stops19h 50mMultiple Airlines
Fri 1/237:00 amSOF - SEA
1 stop16h 20mMultiple Airlines
Deal found 8/14$655
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/237:10 pmSEA - SOF
1 stop33h 35mTurkish Airlines
Sat 9/69:25 amSOF - SEA
1 stop17h 50mTurkish Airlines
Deal found 8/12$662
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:10 pmSEA - SOF
1 stop27h 25mTurkish Airlines
Fri 10/39:15 pmSOF - SEA
1 stop23h 20mTurkish Airlines
Deal found 8/12$663
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/32:20 pmSEA - BOJ
2 stops14h 55mMultiple Airlines
Wed 9/106:25 pmBOJ - SEA
2 stops27h 30mMultiple Airlines
Deal found 8/13$990
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:25 pmSEA - VAR
1 stop29h 05mMultiple Airlines
Tue 9/1610:15 pmVAR - SEA
2 stops33h 36mMultiple Airlines
Deal found 8/12$1,223

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Bulgaria 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 14, 2025.
Use the filters below to find and compare flights from Seattle to Bulgaria that are best for you.

Fly from

Seattle

Fly to

Bulgaria

Route

Depart

Return

Price

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 9/24

7:10 pm-2:45 pm

1 stop33h 35m

Sofia

Thu 10/2

9:25 am-5:15 pm

1 stop17h 50m

$579

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 9/4

12:30 pm-8:35 am

1 stop34h 05m

Sofia

Wed 9/17

3:35 pm-10:35 am

1 stop29h 00m

$587

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 9/21

7:10 pm-8:35 am

1 stop27h 25m

Sofia

Fri 10/10

9:15 pm-5:15 pm

1 stop30h 00m

$589

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 9/25

12:30 pm-2:45 pm

1 stop16h 15m

Sofia

Thu 10/2

9:25 am-5:15 pm

1 stop17h 50m

$604

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 9/30

7:10 pm-2:45 pm

1 stop33h 35m

Sofia

Mon 11/3

10:05 am-5:05 pm

1 stop17h 00m

$624

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 9/29

7:10 pm-8:25 pm

1 stop15h 15m

Sofia

Tue 11/4

4:00 pm-5:05 pm

1 stop35h 05m

$626

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 10/1

7:10 pm-8:35 am

1 stop27h 25m

Sofia

Tue 11/4

9:40 pm-5:05 pm

1 stop29h 25m

$626

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 9/30

7:10 pm-8:35 am

1 stop27h 25m

Sofia

Wed 11/5

10:05 am-5:05 pm

1 stop17h 00m

$626

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 10/2

7:10 pm-8:25 pm

1 stop15h 15m

Sofia

Tue 11/4

9:40 pm-5:05 pm

1 stop29h 25m

$626

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Thu 1/22

2:00 pm-3:15 pm

2 stops39h 15m

Varna

Mon 1/26

4:00 pm-12:10 pm

2 stops30h 10m

$963

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 19 results
1
2

Best time to book a flight from Seattle to Bulgaria

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

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Bulgaria (average of $632). Flying from Seattle to Bulgaria in June is currently the most expensive (average of $1,186). 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 SEA to BG?

Find hourly flight availability from Seattle to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Bulgaria as you normally would.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown KLM, United Airlines, and Turkish Airlines from Seattle to Bulgaria. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,381 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,916 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Turkish Airlines
7.3
Good
3,940 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Lufthansa
6.8
Okay
7,317 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Bulgaria. 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 Seattle to Bulgaria?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Bulgaria.

  • What are the most popular routes from Seattle to Bulgaria?

    While some choose either Seattle/Tacoma Intl - Varna or Seattle/Tacoma Intl - Bourgas, Seattle/Tacoma Intl - Sofia is the most popular route from Seattle to Bulgaria.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Bulgaria (average of $632). Flying from Seattle to Bulgaria in June is currently the most expensive (average of $1,186). 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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Top 4 airlines flying from Seattle to Bulgaria

Discover the top 4 airlines that operate flights from Seattle to Bulgaria. 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 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$638Average$953FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$653Average$980FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$674Average$1,111FlexibilityNo cancel feeOn-time76%
KLMCheapest$719Average$942FlexibilityNo cancel feeOn-time75%

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