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Bulgaria

$445+ Cheap flights from Washington 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Washington to Bulgaria

Keep the following information in mind while searching for Washington to Bulgaria flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$471
(Kiwi.com)

One-way from

$445
(Air Canada)

Popular in

December

Cheapest in

January

Average price

$644
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 Washington to Bulgaria
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One-way flight from Washington to Bulgaria
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Highest demand for flights based on searches. 2% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Washington to Bulgaria

Cheapest flights from Washington to Bulgaria
Explore the most affordable flight options available from Washington to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:40 pmSEA - SOF
2 stops18h 40mLufthansa
Fri 1/236:05 amSOF - SEA
1 stop17h 15mLufthansa
Deal found 10/30$471
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:10 pmSEA - SOF
1 stop21h 35mLufthansa
Thu 12/116:00 amSOF - SEA
2 stops26h 28mLufthansa
Deal found 10/30$473
This Flightnetwork deal was found by Cheapflights users on 10/30. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2810:05 amSEA - SOF
2 stops26h 40mMultiple Airlines
Thu 12/116:05 amSOF - SEA
2 stops26h 11mMultiple Airlines
Deal found 10/30$504
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:05 amSEA - SOF
2 stops26h 40mMultiple Airlines
Sat 12/132:00 pmSOF - SEA
1 stop33h 20mMultiple Airlines
Deal found 10/30$515
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/2710:53 amSEA - SOF
2 stops16h 22mMultiple Airlines
Thu 12/46:00 amSOF - SEA
1 stop16h 10mMultiple Airlines
Deal found 10/29$532
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:50 amPDX - SOF
2 stops22h 30mMultiple Airlines
Sun 12/146:10 amSOF - PDX
2 stops28h 27mMultiple Airlines
Deal found 10/29$533
This oojo deal was found by Cheapflights users on 10/29. 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.
Thu 11/2710:53 amSEA - SOF
2 stops42h 17mTurkish Airlines
Thu 12/44:00 pmSOF - SEA
2 stops34h 07mTurkish Airlines
Deal found 10/29$534
This oojo deal was found by Cheapflights users on 10/30. 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.
Wed 11/1212:35 pmSEA - SOF
2 stops34h 10mTurkish Airlines
Wed 11/194:00 pmSOF - SEA
2 stops60h 52mTurkish Airlines
Deal found 10/30$539
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/2710:53 amSEA - SOF
2 stops25h 52mUnited Airlines
Thu 12/46:05 amSOF - SEA
3 stops28h 45mUnited Airlines
Deal found 10/29$540
This Trip.com deal was found by Cheapflights users on 10/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:00 pmSEA - SOF
1 stop22h 45mLufthansa
Thu 12/46:00 amSOF - SEA
1 stop16h 10mLufthansa
Deal found 10/29$560
This United deal was found by Cheapflights users on 10/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:00 amPDX - SOF
2 stops25h 00mMultiple Airlines
Wed 12/36:10 amSOF - PDX
2 stops37h 05mMultiple Airlines
Deal found 10/28$595
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 11/2311:59 pmPDX - SOF
2 stops32h 21mUnited Airlines
Wed 12/36:10 amSOF - PDX
2 stops26h 42mUnited Airlines
Deal found 10/29$598

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 October 30, 2025.
Use the filters below to find and compare flights from Washington to Bulgaria that are best for you.

Fly from

Washington

Fly to

Bulgaria

Route

Depart

Return

Price

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 12/8

1:40 pm-6:20 pm

2 stops18h 40m

Sofia

Fri 1/23

6:05 am-1:20 pm

1 stop17h 15m

$471

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 12/5

10:05 am-10:45 pm

2 stops26h 40m

Sofia

Sat 12/13

2:00 pm-1:20 pm

1 stop33h 20m

$515

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 1/12

3:50 pm-10:45 pm

2 stops20h 55m

Sofia

Fri 1/30

6:10 am-6:30 pm

2 stops22h 20m

$525

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 11/27

10:53 am-1:15 pm

2 stops16h 22m

Sofia

Thu 12/4

6:00 am-12:10 pm

1 stop16h 10m

$532

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 12/7

9:50 am-6:20 pm

2 stops22h 30m

Sofia

Sun 12/14

6:10 am-12:37 am

2 stops28h 27m

$533

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 1/12

7:00 am-2:05 pm

2 stops21h 05m

Sofia

Fri 1/30

7:00 am-11:25 am

1 stop14h 25m

$533

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 11/27

10:53 am-3:10 pm

2 stops42h 17m

Sofia

Thu 12/4

4:00 pm-4:07 pm

2 stops34h 07m

$534

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 11/12

12:35 pm-3:10 pm

2 stops40h 35m

Sofia

Wed 11/19

9:40 pm-6:52 pm

2 stops55h 12m

$539

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 11/27

10:53 am-10:45 pm

2 stops25h 52m

Sofia

Thu 12/4

6:05 am-12:50 am

3 stops28h 45m

$540

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 11/27

2:00 pm-10:45 pm

1 stop22h 45m

Sofia

Thu 12/4

6:00 am-12:10 pm

1 stop16h 10m

$560

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 23 results
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Best time to book a flight from Washington to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Washington 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 Washington to Bulgaria

What is the cheapest month to book a flight from State of Washington to Bulgaria?

Currently, October is the cheapest month in which you can book a flight from State of Washington to Bulgaria (average of $553). Flying from State of Washington to Bulgaria in June is currently the most expensive (average of $943). 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 WA to BG?

Find hourly flight availability from Washington 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 October 30, 2025.

When flying from State of Washington to Bulgaria, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 12% versus a flight in the morning.

What is the cheapest day to fly from State of Washington to Bulgaria?

Use this chart to determine the cheapest time to fly round-trip from Washington to Bulgaria. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Bulgaria flight should consider departing on Tuesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Washington to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to Bulgaria?

    Departing from State of Washington to Bulgaria will take you 15h 35m. Airlines will cover a distance of 5908 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Washington to Bulgaria that include hotel bookings?

    Yes. In addition to deals on Washington to Bulgaria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Bulgaria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Bulgaria.

  • Can I find deals for business class flights from Washington to Bulgaria?

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Bulgaria?

    Currently, October is the cheapest month in which you can book a flight from State of Washington to Bulgaria (average of $553). Flying from State of Washington to Bulgaria in June is currently the most expensive (average of $943). 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 Washington to Bulgaria

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Top 5 airlines flying from Washington to Bulgaria

Discover the top 5 airlines that operate flights from Washington 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$555Average$718FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$597Average$976FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$604Average$1,076FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$653Average$885FlexibilityNo cancel feeOn-time69%
KLMCheapest$667Average$989FlexibilityNo cancel feeOn-time75%

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