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$369+ 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$613
(United Airlines)

One-way from

$369
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,091
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. 4% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/10. 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.
mié. 11/193:10 pmSEA - SOF
1 stop21h 35mLufthansa
mar. 12/26:00 amSOF - SEA
1 stop16h 10mLufthansa
Deal found 6/10$598
This Air Canada deal was found by Cheapflights users on 6/11. 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.
sáb. 11/83:10 pmSEA - SOF
2 stops41h 10mAir Canada
mié. 11/196:15 amSOF - SEA
2 stops37h 01mAir Canada
Deal found 6/11$599
This United Airlines deal was found by Cheapflights users on 6/9. 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.
mié. 11/193:10 pmSEA - SOF
1 stop17h 10mUnited Airlines
mié. 12/32:30 pmSOF - SEA
2 stops20h 01mUnited Airlines
Deal found 6/9$609
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/86:50 pmSEA - SOF
1 stop35h 30mAmerican Airlines
mié. 11/193:00 pmSOF - SEA
1 stop35h 55mAmerican Airlines
Deal found 6/11$646
This Justfly.com deal was found by Cheapflights users on 6/11. 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.
sáb. 11/82:00 pmSEA - SOF
1 stop18h 15mMultiple Airlines
mié. 11/196:15 amSOF - SEA
2 stops22h 11mMultiple Airlines
Deal found 6/11$652
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/114:25 pmSEA - SOF
1 stop31h 40mSWISS
mié. 9/310:50 amSOF - SEA
2 stops20h 04mSWISS
Deal found 6/10$694
This Turkish Airlines deal was found by Cheapflights users on 6/10. 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.
jue. 8/712:30 pmSEA - SOF
1 stop21h 55mTurkish Airlines
vie. 8/293:35 pmSOF - SEA
1 stop35h 40mTurkish Airlines
Deal found 6/10$779
This Justfly.com deal was found by Cheapflights users on 6/11. 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.
dom. 12/148:00 amSEA - VAR
2 stops21h 15mMultiple Airlines
dom. 12/284:00 pmVAR - SEA
2 stops54h 10mMultiple Airlines
Deal found 6/11$836
This Gurufare deal was found by Cheapflights users on 6/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/142:20 pmSEA - BOJ
2 stops41h 15mLufthansa
dom. 8/310:00 amBOJ - SEA
2 stops35h 55mLufthansa
Deal found 6/10$1,259
This FlightHub deal was found by Cheapflights users on 6/11. 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.
dom. 12/213:10 pmSEA - VAR
2 stops38h 05mLufthansa
dom. 1/44:00 pmVAR - SEA
2 stops54h 10mLufthansa
Deal found 6/11$1,265
This FlightHub deal was found by Cheapflights users on 6/11. 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.
dom. 12/147:00 pmSEA - VAR
1 stop28h 35mTurkish Airlines
dom. 12/2810:25 amVAR - SEA
1 stop16h 40mTurkish Airlines
Deal found 6/11$2,062

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 junio 12, 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

mié. 11/19

3:10 pm-10:45 pm

1 stop21h 35m

Sofia

mar. 12/2

6:00 am-12:10 pm

1 stop16h 10m

$598

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

sáb. 11/8

3:10 pm-6:20 pm

2 stops41h 10m

Sofia

mié. 11/19

6:15 am-9:16 am

2 stops37h 01m

$599

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

mié. 11/19

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

mié. 12/3

2:30 pm-12:31 am

2 stops20h 01m

$609

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

sáb. 11/8

6:50 pm-4:20 pm

1 stop35h 30m

Sofia

mié. 11/19

3:00 pm-4:55 pm

1 stop35h 55m

$646

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

sáb. 11/8

2:00 pm-6:15 pm

1 stop18h 15m

Sofia

mié. 11/19

6:15 am-6:26 pm

2 stops22h 11m

$652

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

lun. 8/11

4:25 pm-10:05 am

1 stop31h 40m

Sofia

mié. 9/3

10:50 am-8:54 pm

2 stops20h 04m

$694

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

jue. 8/7

12:30 pm-8:25 pm

1 stop21h 55m

Sofia

vie. 8/29

3:35 pm-5:15 pm

1 stop35h 40m

$779

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

lun. 7/14

2:20 pm-5:35 pm

2 stops41h 15m

Bourgas

dom. 8/3

10:00 am-11:55 am

2 stops35h 55m

$1,259

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

vie. 7/18

10:50 am-4:20 pm

2 stops43h 30m

$369

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

vie. 7/18

10:50 am-10:10 am

3 stops37h 20m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 14 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 $1,203). 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 junio 12, 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 junio 12, 2025.
Read through reviews of airlines operating flights from Seattle to Bulgaria, such as SWISS, United Airlines and Turkish Airlines. 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.
SWISS
7.5
Good
1,623 reviews

Entertainment

6.7

Overall

7.5

Boarding

7.6

Food

7.0

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
SWISS
7.5
Good
1,623 reviews
SWISS
7.5
Good
1,623 reviews

Entertainment

6.7

Overall

7.5

Boarding

7.6

Food

7.0

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
United Airlines
7.4
Good
8,790 reviews
SWISS
7.5
Good
1,623 reviews

Entertainment

6.7

Overall

7.5

Boarding

7.6

Food

7.0

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
Turkish Airlines
7.3
Good
3,848 reviews
SWISS
7.5
Good
1,623 reviews

Entertainment

6.7

Overall

7.5

Boarding

7.6

Food

7.0

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
Air Canada
7.1
Good
9,537 reviews
SWISS
7.5
Good
1,623 reviews

Entertainment

6.7

Overall

7.5

Boarding

7.6

Food

7.0

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
Lufthansa
6.8
Okay
7,139 reviews
SWISS
7.5
Good
1,623 reviews

Entertainment

6.7

Overall

7.5

Boarding

7.6

Food

7.0

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

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 United Airlines ($522), Turkish Airlines ($630), and Lufthansa ($792).

  • 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 $1,203). 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$678Average$1,054FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$686Average$1,114FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$700Average$968FlexibilityNo cancel feeOn-time77%
KLMCheapest$719Average$1,023FlexibilityNo cancel feeOn-time75%

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