Bulgaria

$309+ Cheap flights from Seattle (SEA) to Bulgaria

SEA — SOF
Dec 8 — Dec 151
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Cheap flight deals from Seattle to Bulgaria

Cheapest flights from Seattle to Bulgaria

Sat 12/54:04 pm -
2 stops44h 51m
Mon 12/142:00 pm -
3 stops43h 44m
Deal found 11/5$839
Sat 12/51:40 pm -
1 stop18h 55m
Mon 12/145:15 pm -
1 stop28h 10m
Deal found 11/5$853
Mon 12/148:09 am -
2 stops23h 51m
Thu 1/146:00 am -
2 stops37h 32m
Deal found 11/7$854
Tue 12/86:45 pm -
1 stop15h 25m
Fri 1/88:25 pm -
1 stop25h 00m
Deal found 11/7$867
Wed 12/92:50 pm -
1 stop22h 05m
Wed 1/66:25 am -
1 stop15h 35m
Deal found 11/7$876
Sun 12/62:50 pm -
1 stop22h 05m
Fri 1/87:55 am -
2 stops23h 07m
Deal found 11/7$878
Sun 12/62:50 pm -
1 stop22h 05m
Sat 1/97:55 am -
2 stops38h 05m
Deal found 11/7$885
Mon 12/71:50 pm -
1 stop13h 35m
Fri 1/87:55 am -
2 stops23h 07m
Deal found 11/7$889
Mon 12/148:09 am -
2 stops17h 41m
Thu 1/142:00 pm -
3 stops57h 13m
Deal found 11/7$895
Thu 12/102:35 pm -
2 stops17h 30m
Tue 1/2611:10 am -
3 stops39h 50m
Deal found 11/4$1,085
Thu 12/107:05 pm -
1 stop27h 45m
Tue 1/269:40 am -
1 stop17h 30m
Deal found 11/4$1,198

Find flight deals from Seattle to Bulgaria

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$705
(Expedia)

One-way from

$309
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$999
Provider with most accurate pricing for Seattle/Tacoma Intl-Sofia flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sofia flights.
From Seattle/Tacoma Intl to Bulgaria
One-way flight from Seattle/Tacoma Intl to Bulgaria
Highest demand for flights based on searches. 13% potential increase in price ($125 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 5/2

1:35 pm-7:20 pm

1 stop19h 45m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$335

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Tue 4/27

1:35 pm-8:30 pm

1 stop20h 55m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$335

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 5/2

10:40 pm-6:45 pm

2 stops34h 05m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$346

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sat 5/1

10:40 pm-12:20 pm

2 stops27h 40m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$346

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 4/28

8:20 pm-1:25 pm

1 stop31h 05m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$350

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 4/28

5:07 am-11:00 pm

3 stops31h 53m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$358

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Fri 4/30

6:35 pm-11:05 pm

1 stop18h 30m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$392
Quickest round-trip

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Thu 4/29

6:50 pm-11:05 pm

1 stop18h 15m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$392

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 2/7

7:00 am-1:15 pm

2 stops20h 15m

Sofia

Thu 2/11

6:25 am-12:00 pm

1 stop15h 35m

$731

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Tue 4/27

11:50 pm-12:20 pm

2 stops26h 30m

Sofia

Wed 5/12

1:05 pm-5:20 pm

1 stop14h 15m

$733

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 15 resultsSorted by cheapest first
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

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, January is the cheapest month in which you can book a flight from Seattle to Bulgaria (average of $615). Flying from Seattle to Bulgaria in June is currently the most expensive (average of $1,170). 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 far ahead should I book a flight from Seattle to Bulgaria?

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Bulgaria. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Bulgaria

Read reviews from past customers who have flown KLM,Austrian Airlines, andTurkish 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.

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.4

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.4

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.4

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.4

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.4

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.4

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Related info for your journey

  • 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 15h 55m. United Airlines provides one of the quickest options available for as low as $1,142. Seattle and Bulgaria are separated by a distance of 5908 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?

  • 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, January is the cheapest month in which you can book a flight from Seattle to Bulgaria (average of $615). Flying from Seattle to Bulgaria in June is currently the most expensive (average of $1,170). 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

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Seattle to Bulgaria

AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$538Average$909FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$559Average$927FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$596Average$889FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$620Average$830FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$884Average$897FlexibilityNo cancel feeOn-time78%

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