HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bulgaria

$419+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Bulgaria with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$749
(FlightHub)

One-way from

$419
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$897
Provider with most accurate pricing for Seattle/Tacoma Intl-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sofia flights.
Search Deals
From Seattle/Tacoma Intl to Bulgaria
Search Deals
One-way flight from Seattle/Tacoma Intl to Bulgaria
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 28, 2025.

This FlightHub deal was found by Cheapflights users on 3/26. 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 4/217:10 pmSEA - SOF
1 stop15h 15mTurkish Airlines
Wed 4/309:15 pmSOF - SEA
1 stop30h 00mTurkish Airlines
Deal found 3/26$749
This Turkish Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 5/127:10 pmSEA - VAR
1 stop27h 35mTurkish Airlines
Mon 5/1910:10 pmVAR - SEA
1 stop29h 05mTurkish Airlines
Deal found 3/27$764
This British Airways deal was found by Cheapflights users on 3/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/101:32 pmSEA - SOF
2 stops19h 38mBritish Airways
Mon 8/188:00 pmSOF - SEA
1 stop25h 10mBritish Airways
Deal found 3/27$808
This deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/306:50 pmSEA - SOF
1 stop13h 50mLufthansa
Tue 5/206:20 amSOF - SEA
1 stop16h 05mLufthansa
Deal found 3/27$818
This SmartFares deal was found by Cheapflights users on 3/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/122:15 pmSEA - VAR
2 stops39h 00mLufthansa
Mon 5/1912:20 pmVAR - SEA
2 stops34h 05mLufthansa
Deal found 3/27$865
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Fri 5/96:50 pmSEA - SOF
1 stop18h 10mUnited Airlines
Fri 5/166:15 amSOF - SEA
2 stops23h 22mUnited Airlines
Deal found 3/27$865
This Gurufare deal was found by Cheapflights users on 3/27. 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.
Sun 5/116:50 pmSEA - BOJ
2 stops27h 40mLufthansa
Sun 5/189:25 amBOJ - SEA
1 stop37h 00mLufthansa
Deal found 3/27$924
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 4/245:05 pmSEA - VAR
1 stop29h 25mMultiple Airlines
Thu 5/110:45 pmVAR - SEA
2 stops31h 57mMultiple Airlines
Deal found 3/26$936
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Fri 5/93:45 pmSEA - SOF
3 stops19h 15mMultiple Airlines
Sun 5/1811:20 pmSOF - SEA
3 stops32h 53mMultiple Airlines
Deal found 3/27$1,014
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Tue 6/171:29 pmSEA - SOF
2 stops21h 11mAmerican Airlines
Mon 6/308:00 pmSOF - SEA
1 stop25h 10mAmerican Airlines
Deal found 3/27$1,026
This Air Canada deal was found by Cheapflights users on 3/26. 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.
Sun 4/205:45 amSEA - SOF
2 stops26h 55mAir Canada
Wed 4/306:15 amSOF - SEA
2 stops25h 48mAir Canada
Deal found 3/26$1,135
This Austrian Airlines deal was found by Cheapflights users on 3/26. 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.
Sun 4/207:00 amSEA - SOF
2 stops30h 55mAustrian Airlines
Mon 4/2812:25 pmSOF - SEA
2 stops40h 36mAustrian Airlines
Deal found 3/26$1,166

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 March 28, 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

Mon 4/21

7:10 pm-8:25 pm

1 stop15h 15m

Sofia

Wed 4/30

9:15 pm-5:15 pm

1 stop30h 00m

$749

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Mon 5/12

7:10 pm-8:45 am

1 stop27h 35m

Varna

Mon 5/19

10:10 pm-5:15 pm

1 stop29h 05m

$764

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 8/10

1:32 pm-7:10 pm

2 stops19h 38m

Sofia

Mon 8/18

8:00 pm-11:10 am

1 stop25h 10m

$808

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 4/30

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Tue 5/20

6:20 am-12:25 pm

1 stop16h 05m

$818

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 5/9

6:50 pm-11:00 pm

1 stop18h 10m

Sofia

Fri 5/16

6:15 am-7:37 pm

2 stops23h 22m

$865

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Mon 5/12

2:15 pm-3:15 pm

2 stops39h 00m

Varna

Mon 5/19

12:20 pm-12:25 pm

2 stops34h 05m

$865

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

Sun 5/11

6:50 pm-8:30 am

2 stops27h 40m

Bourgas

Sun 5/18

9:25 am-12:25 pm

1 stop37h 00m

$924

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Thu 4/24

5:05 pm-8:30 am

1 stop29h 25m

Varna

Thu 5/1

10:45 pm-8:42 pm

2 stops31h 57m

$936

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 5/9

3:45 pm-9:00 pm

3 stops19h 15m

Sofia

Sun 5/18

11:20 pm-10:13 pm

3 stops32h 53m

$1,014

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 6/17

1:29 pm-8:40 pm

2 stops21h 11m

Sofia

Mon 6/30

8:00 pm-11:10 am

1 stop25h 10m

$1,026

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 22 results
1
2
3

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 March 28, 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 March 28, 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
1,321 reviews

Entertainment

7.1

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

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
1,321 reviews
KLM
7.8
Good
1,321 reviews

Entertainment

7.1

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

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
7.5
Good
769 reviews
KLM
7.8
Good
1,321 reviews

Entertainment

7.1

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

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
1,570 reviews
KLM
7.8
Good
1,321 reviews

Entertainment

7.1

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

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
8,603 reviews
KLM
7.8
Good
1,321 reviews

Entertainment

7.1

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

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
3,744 reviews
KLM
7.8
Good
1,321 reviews

Entertainment

7.1

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

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 Turkish Airlines ($656), British Airways ($733), and Lufthansa ($736).

  • 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 $1,243). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Heathrow flights
Seattle to Charles de Gaulle flights
Seattle to Dublin flights
Seattle to Gatwick flights
Seattle to Istanbul flights
Portland to Heathrow flights
Seattle to London City flights
Seattle to Amsterdam flights
Seattle to Leonardo da Vinci/Fiumicino flights
Seattle to Frankfurt flights
Seattle to Athens flights
Seattle to Orly flights
Seattle to Keflavik Intl flights
Seattle to Barcelona-El Prat flights
Seattle to Lisbon flights
Seattle to Oslo Gardermoen flights
Seattle to Copenhagen flights
Seattle to Madrid flights
Seattle to Bruxelles-National flights
Seattle to Munich flights
Portland to Gatwick flights
Seattle to Malpensa flights
Portland to Amsterdam flights
Seattle to Vicenza flights
Portland to Charles de Gaulle flights
Seattle to Zurich flights
Seattle to Sabiha Gokcen flights
Portland to Dublin flights
Portland to Leonardo da Vinci/Fiumicino flights
Seattle to Linate flights
Portland to London City flights
Portland to Orly flights
Seattle to Berlin flights
Seattle to Geneva flights
Seattle to Edinburgh flights
Portland to Athens flights
Seattle to Florence flights
Portland to Madrid flights
Seattle to Stansted flights
Portland to Vicenza flights
Portland to Lisbon flights
Portland to Keflavik Intl flights
Seattle to Arlanda flights
Seattle to Helsinki flights
Seattle to Naples flights
Portland to Barcelona-El Prat flights
Seattle to Prague flights
Seattle to Budapest flights
Seattle to Luton flights
Seattle to Manchester flights

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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$584Average$1,149FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$684Average$1,217FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$700Average$1,053FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$718Average$1,194FlexibilityNo cancel feeOn-time76%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.