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$347+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$656
(Air France)

One-way from

$347
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$748
Provider with most accurate pricing for Seattle/Tacoma Intl-Sofia flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sofia flights.
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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. 1% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 17, 2025.

This Air France deal was found by Cheapflights users on 4/16. 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.
Tue 8/268:30 amSEA - SOF
2 stops19h 30mMultiple Airlines
Tue 9/167:00 amSOF - SEA
1 stop14h 45mMultiple Airlines
Deal found 4/16$656
This KLM deal was found by Cheapflights users on 4/16. 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 8/255:40 pmSEA - SOF
1 stop34h 20mKLM
Tue 9/167:00 amSOF - SEA
1 stop14h 45mKLM
Deal found 4/16$657
This Expedia deal was found by Cheapflights users on 4/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/263:19 pmSEA - SOF
2 stops32h 46mSWISS
Tue 9/161:15 pmSOF - SEA
2 stops41h 39mSWISS
Deal found 4/16$663
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/76:50 pmSEA - SOF
1 stop18h 10mUnited Airlines
Wed 5/216:15 amSOF - SEA
2 stops23h 22mUnited Airlines
Deal found 4/16$724
This Air Canada deal was found by Cheapflights users on 4/16. 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 5/710:00 amSEA - SOF
2 stops21h 50mAir Canada
Tue 5/206:20 amSOF - SEA
2 stops23h 17mAir Canada
Deal found 4/16$727
This Lufthansa deal was found by Cheapflights users on 4/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:50 pmSEA - SOF
1 stop18h 10mLufthansa
Fri 5/236:00 amSOF - SEA
1 stop20h 59mLufthansa
Deal found 4/16$735
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Thu 8/2112:30 pmSEA - SOF
1 stop16h 15mTurkish Airlines
Sun 9/219:25 amSOF - SEA
1 stop17h 50mTurkish Airlines
Deal found 4/17$826
This oojo deal was found by Cheapflights users on 4/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/257:10 pmSEA - VAR
1 stop27h 35mTurkish Airlines
Wed 7/3010:10 pmVAR - SEA
1 stop22h 25mTurkish Airlines
Deal found 4/16$865
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Mon 6/3010:00 amSEA - VAR
2 stops24h 00mMultiple Airlines
Mon 9/154:00 pmVAR - SEA
2 stops36h 49mMultiple Airlines
Deal found 4/16$988
This Lufthansa deal was found by Cheapflights users on 4/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/302:15 pmSEA - VAR
2 stops39h 00mLufthansa
Fri 9/199:45 amVAR - SEA
1 stop17h 14mLufthansa
Deal found 4/16$1,012
This Austrian Airlines deal was found by Cheapflights users on 4/16. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/68:10 amSEA - SOF
2 stops24h 00mAustrian Airlines
Fri 5/236:55 pmSOF - SEA
2 stops35h 46mAustrian Airlines
Deal found 4/16$1,068
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3110:00 amSEA - BOJ
3 stops26h 00mMultiple Airlines
Sat 6/711:20 pmBOJ - SEA
3 stops32h 53mMultiple Airlines
Deal found 4/16$1,322

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 April 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

Tue 8/26

8:30 am-2:00 pm

2 stops19h 30m

Sofia

Tue 9/16

7:00 am-11:45 am

1 stop14h 45m

$656

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 8/25

5:40 pm-2:00 pm

1 stop34h 20m

Sofia

Tue 9/16

7:00 am-11:45 am

1 stop14h 45m

$657

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 8/26

3:19 pm-10:05 am

2 stops32h 46m

Sofia

Tue 9/16

1:15 pm-8:54 pm

2 stops41h 39m

$663

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 5/7

6:50 pm-11:00 pm

1 stop18h 10m

Sofia

Wed 5/21

6:15 am-7:37 pm

2 stops23h 22m

$724

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 5/7

10:00 am-5:50 pm

2 stops21h 50m

Sofia

Tue 5/20

6:20 am-7:37 pm

2 stops23h 17m

$727

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 5/7

6:50 pm-11:00 pm

1 stop18h 10m

Sofia

Fri 5/23

6:00 am-4:59 pm

1 stop20h 59m

$735

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 8/21

12:30 pm-2:45 pm

1 stop16h 15m

Sofia

Sun 9/21

9:25 am-5:15 pm

1 stop17h 50m

$826

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Sun 5/25

7:10 pm-8:45 am

1 stop27h 35m

Varna

Wed 7/30

10:10 pm-10:35 am

1 stop22h 25m

$865

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Mon 6/30

10:00 am-8:00 pm

2 stops24h 00m

Varna

Mon 9/15

4:00 pm-6:49 pm

2 stops36h 49m

$988

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 5/6

8:20 pm-8:40 pm

1 stop14h 20m

Sofia

Mon 5/19

8:00 pm-11:10 am

1 stop25h 10m

$1,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 24 results
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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 $1,243). 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 April 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.

Rainfall in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bulgaria ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bulgaria, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 April 17, 2025.
Read through reviews of airlines operating flights from Seattle to Bulgaria, such as KLM, Austrian Airlines and SWISS. 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
1,327 reviews

Overall

7.8

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,327 reviews
KLM
7.8
Good
1,327 reviews

Overall

7.8

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.6
Good
775 reviews
KLM
7.8
Good
1,327 reviews

Overall

7.8

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,580 reviews
KLM
7.8
Good
1,327 reviews

Overall

7.8

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,667 reviews
KLM
7.8
Good
1,327 reviews

Overall

7.8

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Turkish Airlines
7.3
Good
3,769 reviews
KLM
7.8
Good
1,327 reviews

Overall

7.8

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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 cheapest airlines to fly from Seattle to Bulgaria one-way?

    The cheapest airlines for a one-way flight from Seattle to Bulgaria are British Airways ($549), Lufthansa ($573), and United Airlines ($580).

  • 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 $1,243). 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 Seattle to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Seattle to Bulgaria

Discover the top 5 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$584Average$1,130FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$684Average$1,204FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$700Average$1,027FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$711Average$1,174FlexibilityNo cancel feeOn-time76%
KLMCheapest$719Average$1,023FlexibilityNo cancel feeOn-time75%

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