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Bulgaria

$291+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$551
(Mytrip)

One-way from

$291
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$826
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 ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Mytrip deal was found by Cheapflights users on 9/17. 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.
Sun 11/23:10 pmSEA - SOF
1 stop17h 10mMultiple Airlines
Wed 12/36:10 amSOF - SEA
2 stops25h 56mMultiple Airlines
Deal found 9/17$551
This FlightHub deal was found by Cheapflights users on 9/17. 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 10/712:30 pmSEA - SOF
1 stop34h 05mTurkish Airlines
Fri 11/74:00 pmSOF - SEA
1 stop35h 05mTurkish Airlines
Deal found 9/17$552
This Mytrip deal was found by Cheapflights users on 9/17. 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.
Tue 10/710:00 amSEA - SOF
2 stops21h 50mMultiple Airlines
Fri 11/76:10 amSOF - SEA
1 stop16h 00mMultiple Airlines
Deal found 9/17$555
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2312:30 pmSEA - SOF
1 stop21h 55mTurkish Airlines
Fri 10/109:15 pmSOF - SEA
1 stop23h 20mTurkish Airlines
Deal found 9/16$611
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:10 pmSEA - SOF
1 stop15h 15mTurkish Airlines
Wed 10/89:25 amSOF - SEA
1 stop17h 50mTurkish Airlines
Deal found 9/16$623
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:10 pmSEA - SOF
1 stop27h 25mTurkish Airlines
Thu 10/93:35 pmSOF - SEA
1 stop35h 40mTurkish Airlines
Deal found 9/16$630
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:10 pmSEA - SOF
1 stop17h 10mLufthansa
Fri 11/76:10 amSOF - SEA
1 stop16h 00mLufthansa
Deal found 9/16$632
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:10 pmSEA - SOF
1 stop15h 15mTurkish Airlines
Thu 10/99:25 amSOF - SEA
1 stop17h 50mTurkish Airlines
Deal found 9/16$633
This Lufthansa deal was found by Cheapflights users on 9/15. 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.
Sun 12/283:10 pmSEA - SOF
1 stop21h 35mLufthansa
Mon 1/52:20 pmSOF - SEA
1 stop31h 50mLufthansa
Deal found 9/15$637
This FlightHub deal was found by Cheapflights users on 9/17. 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 10/17:10 pmSEA - VAR
1 stop27h 35mTurkish Airlines
Wed 10/810:10 pmVAR - SEA
1 stop29h 05mTurkish Airlines
Deal found 9/17$5,677
This business-class.com deal was found by Cheapflights users on 9/17. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:20 pmSEA - VAR
2 stops14h 55mLufthansa
Wed 10/84:00 pmVAR - SEA
2 stops29h 55mLufthansa
Deal found 9/17$6,491
This Arangrant deal was found by Cheapflights users on 9/17. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:20 pmSEA - VAR
2 stops38h 55mMultiple Airlines
Wed 10/84:00 pmVAR - SEA
2 stops38h 44mMultiple Airlines
Deal found 9/17$6,991

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 September 17, 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

Sun 11/2

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Wed 12/3

6:10 am-10:06 pm

2 stops25h 56m

$551

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 10/7

12:30 pm-8:35 am

1 stop34h 05m

Sofia

Fri 11/7

4:00 pm-5:05 pm

1 stop35h 05m

$552

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 2/1

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Fri 2/20

6:10 am-9:31 am

2 stops37h 21m

$573

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 2/1

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Fri 2/20

6:05 am-1:20 pm

1 stop17h 15m

$579

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 3/9

8:00 pm-6:20 pm

2 stops37h 20m

Sofia

Mon 4/27

3:30 pm-10:29 pm

2 stops40h 59m

$590

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 10/7

1:00 pm-5:50 pm

3 stops42h 50m

Sofia

Fri 11/7

2:35 pm-12:59 am

2 stops20h 24m

$601

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 3/9

12:59 pm-10:45 pm

3 stops24h 46m

Sofia

Mon 4/27

1:50 pm-9:51 pm

2 stops42h 01m

$606

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 3/9

8:00 pm-3:10 pm

1 stop34h 10m

Sofia

Mon 4/27

9:05 pm-5:15 pm

1 stop30h 10m

$607

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 10/31

4:10 pm-6:20 pm

1 stop17h 10m

Sofia

Fri 11/7

6:10 am-12:10 pm

1 stop16h 00m

$632

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-1:20 pm

2 stops55h 20m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 16 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 $1,183). 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 September 17, 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 September 17, 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
1,386 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,386 reviews
KLM
7.8
Good
1,386 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
United Airlines
7.4
Good
8,926 reviews
KLM
7.8
Good
1,386 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Turkish Airlines
7.3
Good
3,965 reviews
KLM
7.8
Good
1,386 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Lufthansa
6.8
Okay
7,409 reviews
KLM
7.8
Good
1,386 reviews

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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.

  • How long is the flight from Seattle to Bulgaria?

    A quick flight from Seattle to Bulgaria can take about 17h 10m. Turkish Airlines provides one of the quickest options available for as low as $579. Seattle and Bulgaria are separated by a distance of 5862 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $1,183). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$606Average$980FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$646Average$1,081FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$653Average$885FlexibilityNo cancel feeOn-time69%
KLMCheapest$719Average$942FlexibilityNo cancel feeOn-time75%

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