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$323+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
jul. 6 — jul. 131
dom. 7/6
dom. 7/13
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 julio 1, 2025.

Round-trip from

$676
(United Airlines)

One-way from

$323
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,023
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. 5% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 1, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. 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.
sáb. 8/211:58 pmSEA - SOF
2 stops37h 02mUnited Airlines
dom. 8/246:00 amSOF - SEA
2 stops21h 57mUnited Airlines
Deal found 7/1$676
This Expedia deal was found by Cheapflights users on 7/1. 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.
mar. 8/2610:00 amSEA - SOF
2 stops38h 05mSWISS
lun. 9/223:30 pmSOF - SEA
2 stops37h 06mSWISS
Deal found 7/1$686
This Expedia deal was found by Cheapflights users on 7/1. 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.
mar. 8/261:55 pmSEA - SOF
2 stops22h 55mLufthansa
lun. 9/226:40 pmSOF - SEA
1 stop27h 15mLufthansa
Deal found 7/1$709
This FlightHub deal was found by Cheapflights users on 7/1. 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. 9/217:10 pmSEA - SOF
1 stop27h 25mTurkish Airlines
vie. 10/103:35 pmSOF - SEA
1 stop29h 00mTurkish Airlines
Deal found 7/1$727
This Expedia deal was found by Cheapflights users on 6/30. 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.
vie. 11/213:10 pmSEA - SOF
1 stop21h 35mMultiple Airlines
lun. 12/13:00 pmSOF - SEA
2 stops42h 14mMultiple Airlines
Deal found 6/30$758
This Travelocity deal was found by Cheapflights users on 7/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/197:15 amSEA - SOF
2 stops20h 10mAir Canada
vie. 9/266:15 amSOF - SEA
2 stops26h 01mAir Canada
Deal found 7/1$825
This Justfly.com deal was found by Cheapflights users on 6/30. 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. 9/207:00 amSEA - SOF
2 stops18h 40mAustrian Airlines
vie. 9/266:55 pmSOF - SEA
2 stops33h 54mAustrian Airlines
Deal found 6/30$901
This oojo deal was found by Cheapflights users on 6/30. 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.
mié. 7/167:10 pmSEA - VAR
1 stop27h 35mTurkish Airlines
mié. 7/2310:10 pmVAR - SEA
1 stop22h 25mTurkish Airlines
Deal found 6/30$1,023
This Mytrip deal was found by Cheapflights users on 7/1. 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.
vie. 8/17:00 pmSEA - BOJ
2 stops21h 50mMultiple Airlines
sáb. 8/3010:15 pmBOJ - SEA
2 stops50h 50mMultiple Airlines
Deal found 7/1$1,185
This Gurufare deal was found by Cheapflights users on 6/30. 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.
mar. 7/152:20 pmSEA - VAR
2 stops14h 55mLufthansa
mié. 7/234:00 pmVAR - SEA
2 stops29h 55mLufthansa
Deal found 6/30$1,378
This Gurufare deal was found by Cheapflights users on 7/1. 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.
vie. 8/17:35 pmSEA - BOJ
1 stop16h 55mAer Lingus
sáb. 8/3011:20 pmBOJ - SEA
1 stop28h 30mAer Lingus
Deal found 7/1$1,396
This Lufthansa deal was found by Cheapflights users on 7/1. 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.
mar. 7/158:00 amSEA - BOJ
2 stops23h 35mLufthansa
dom. 8/310:00 amBOJ - SEA
1 stop16h 59mLufthansa
Deal found 7/1$1,571

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 julio 1, 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

sáb. 8/2

11:58 pm-11:00 pm

2 stops37h 02m

Sofia

dom. 8/24

6:00 am-5:57 pm

2 stops21h 57m

$676

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

mar. 8/26

10:00 am-10:05 am

2 stops38h 05m

Sofia

lun. 9/22

3:30 pm-6:36 pm

2 stops37h 06m

$686

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

mar. 8/26

1:55 pm-10:50 pm

2 stops22h 55m

Sofia

lun. 9/22

6:40 pm-11:55 am

1 stop27h 15m

$709

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

dom. 9/21

7:10 pm-8:35 am

1 stop27h 25m

Sofia

vie. 10/10

3:35 pm-10:35 am

1 stop29h 00m

$727

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

vie. 11/21

3:10 pm-10:45 pm

1 stop21h 35m

Sofia

lun. 12/1

3:00 pm-11:14 pm

2 stops42h 14m

$758

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

vie. 9/19

7:15 am-1:25 pm

2 stops20h 10m

Sofia

vie. 9/26

6:15 am-10:16 pm

2 stops26h 01m

$825

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

sáb. 9/20

7:00 am-11:40 am

2 stops18h 40m

Sofia

vie. 9/26

6:55 pm-6:49 pm

2 stops33h 54m

$901

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

mié. 7/16

7:10 pm-8:45 am

1 stop27h 35m

Varna

mié. 7/23

10:10 pm-10:35 am

1 stop22h 25m

$1,023

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

vie. 8/1

7:00 pm-2:50 am

2 stops21h 50m

Bourgas

sáb. 8/30

10:15 pm-3:05 pm

2 stops50h 50m

$1,185

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

mar. 7/15

2:20 pm-3:15 pm

2 stops14h 55m

Varna

mié. 7/23

4:00 pm-11:55 am

2 stops29h 55m

$1,378

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 16 results
1
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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 $1,189). 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 julio 1, 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 julio 1, 2025.
Read reviews from past customers who have flown Austrian Airlines, SWISS, and United 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.
Austrian Airlines
7.6
Good
807 reviews

Overall

7.6

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
807 reviews
Austrian Airlines
7.6
Good
807 reviews

Overall

7.6

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,654 reviews
Austrian Airlines
7.6
Good
807 reviews

Overall

7.6

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
United Airlines
7.4
Good
8,858 reviews
Austrian Airlines
7.6
Good
807 reviews

Overall

7.6

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Turkish Airlines
7.3
Good
3,886 reviews
Austrian Airlines
7.6
Good
807 reviews

Overall

7.6

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Air Canada
7.1
Good
9,669 reviews
Austrian Airlines
7.6
Good
807 reviews

Overall

7.6

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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 - Bourgas or Seattle/Tacoma Intl - Varna, 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 $1,189). 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 julio 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$672Average$949FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$678Average$1,054FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$682Average$1,058FlexibilityNo cancel feeOn-time76%
KLMCheapest$719Average$942FlexibilityNo cancel feeOn-time75%

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