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$321+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Washington to Bulgaria

Best flights from Washington to Bulgaria
Discover carefully curated flight deals from Washington to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 17, 2025.

This Mytrip deal was found by Cheapflights users on 12/17. 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.
Sat 1/312:00 pmSEA - SOF
1 stop13h 40mMultiple Airlines
Sat 2/76:25 amSOF - SEA
2 stops25h 41mMultiple Airlines
Deal found 12/17$521
This FlightHub deal was found by Cheapflights users on 12/16. 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.
Wed 4/18:00 amSEA - SOF
2 stops18h 05mLufthansa
Wed 4/86:20 amSOF - SEA
1 stop16h 00mLufthansa
Deal found 12/16$522
This KLM deal was found by Cheapflights users on 12/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:05 pmPDX - SOF
1 stop14h 55mKLM
Tue 4/287:00 amSOF - PDX
1 stop14h 10mKLM
Deal found 12/16$533
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 1/262:10 pmSEA - SOF
2 stops22h 35mUnited Airlines
Mon 2/26:10 amSOF - SEA
1 stop16h 00mUnited Airlines
Deal found 12/15$535
This oojo deal was found by Cheapflights users on 12/16. 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.
Fri 1/167:00 pmSEA - VAR
1 stop15h 35mTurkish Airlines
Tue 1/2010:00 amVAR - SEA
1 stop17h 05mTurkish Airlines
Deal found 12/16$678
This Air Canada deal was found by Cheapflights users on 12/16. 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 4/269:50 amPDX - SOF
2 stops27h 20mMultiple Airlines
Tue 5/56:10 amSOF - PDX
2 stops22h 55mMultiple Airlines
Deal found 12/16$531
This KLM deal was found by Cheapflights users on 12/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:05 pmPDX - SOF
1 stop14h 55mKLM
Tue 5/57:00 amSOF - PDX
1 stop14h 10mKLM
Deal found 12/16$533
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 1/277:00 amSEA - SOF
2 stops20h 15mUnited Airlines
Sat 2/76:25 amSOF - SEA
1 stop15h 45mUnited Airlines
Deal found 12/15$535
This Booking.com deal was found by Cheapflights users on 12/15. 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.
Thu 1/297:00 amPDX - SOF
2 stops20h 15mMultiple Airlines
Thu 2/56:00 amSOF - PDX
2 stops22h 30mMultiple Airlines
Deal found 12/15$531
This KLM deal was found by Cheapflights users on 12/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/51:05 pmPDX - SOF
1 stop14h 55mKLM
Tue 4/147:00 amSOF - PDX
1 stop14h 10mKLM
Deal found 12/16$533
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 1/288:40 amSEA - SOF
3 stops23h 40mUnited Airlines
Sat 2/76:25 amSOF - SEA
1 stop15h 45mUnited Airlines
Deal found 12/15$535
This Gotogate deal was found by Cheapflights users on 12/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/318:30 amPDX - SOF
2 stops23h 50mMultiple Airlines
Sat 2/76:25 amSOF - PDX
2 stops22h 05mMultiple Airlines
Deal found 12/17$531
This KLM deal was found by Cheapflights users on 12/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/15:35 pmSEA - SOF
1 stop34h 25mKLM
Wed 4/87:00 amSOF - SEA
1 stop14h 45mKLM
Deal found 12/15$533
This United Airlines deal was found by Cheapflights users on 12/15. 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 1/298:40 amSEA - SOF
3 stops28h 05mUnited Airlines
Mon 2/26:10 amSOF - SEA
1 stop16h 00mUnited Airlines
Deal found 12/15$535
This Expedia deal was found by Cheapflights users on 12/15. 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.
Fri 2/2010:55 amSEA - VAR
2 stops44h 00mLufthansa
Wed 4/299:30 pmVAR - SEA
2 stops57h 22mLufthansa
Deal found 12/15$688
This FlightHub deal was found by Cheapflights users on 12/16. 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.
Sun 4/197:05 pmPDX - SOF
2 stops37h 35mMultiple Airlines
Tue 4/2812:55 pmSOF - PDX
2 stops30h 20mMultiple Airlines
Deal found 12/16$533
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 1/262:10 pmSEA - SOF
2 stops22h 35mUnited Airlines
Sat 2/76:25 amSOF - SEA
1 stop15h 45mUnited Airlines
Deal found 12/15$535
This oojo deal was found by Cheapflights users on 12/14. 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.
Sun 1/257:00 pmSEA - VAR
1 stop28h 10mTurkish Airlines
Sat 1/319:25 pmVAR - SEA
1 stop29h 40mTurkish Airlines
Deal found 12/14$716
This United Airlines deal was found by Cheapflights users on 12/15. 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 1/257:00 amSEA - SOF
2 stops25h 20mUnited Airlines
Mon 2/26:10 amSOF - SEA
1 stop16h 00mUnited Airlines
Deal found 12/15$535
This Air France deal was found by Cheapflights users on 12/15. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:55 amGEG - SOF
2 stops19h 10mMultiple Airlines
Wed 3/257:00 amSOF - GEG
2 stops23h 05mMultiple Airlines
Deal found 12/15$544
This FlightHub deal was found by Cheapflights users on 12/16. 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 2/167:00 pmSEA - VAR
1 stop28h 10mTurkish Airlines
Sat 4/2510:10 pmVAR - SEA
1 stop29h 05mTurkish Airlines
Deal found 12/16$732
This Booking.com deal was found by Cheapflights users on 12/15. 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.
Mon 2/162:00 pmSEA - VAR
2 stops39h 15mLufthansa
Sat 4/259:15 amVAR - SEA
2 stops21h 37mLufthansa
Deal found 12/15$754
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Sat 1/317:00 amSEA - SOF
2 stops25h 20mUnited Airlines
Sat 2/76:25 amSOF - SEA
1 stop15h 45mUnited Airlines
Deal found 12/15$535
This FlightHub deal was found by Cheapflights users on 12/14. 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.
Sun 1/258:10 amSEA - VAR
2 stops21h 05mMultiple Airlines
Sat 1/314:00 pmVAR - SEA
2 stops40h 16mMultiple Airlines
Deal found 12/14$567
This United Airlines deal was found by Cheapflights users on 12/15. 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 1/221:24 pmPDX - SOF
3 stops23h 21mUnited Airlines
Mon 1/266:10 amSOF - PDX
2 stops25h 02mUnited Airlines
Deal found 12/15$545
This Expedia deal was found by Cheapflights users on 12/15. 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.
Tue 2/1710:55 amSEA - VAR
2 stops44h 20mMultiple Airlines
Mon 3/234:00 pmVAR - SEA
2 stops37h 56mMultiple Airlines
Deal found 12/15$567
This United Airlines deal was found by Cheapflights users on 12/14. 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 1/156:53 amGEG - SOF
2 stops29h 52mUnited Airlines
Mon 1/192:20 pmSOF - GEG
2 stops30h 24mUnited Airlines
Deal found 12/14$551

Find flight deals from Washington to Bulgaria

Keep the following information in mind while searching for Washington to Bulgaria flight deals. Data was last updated December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$475
(Kiwi.com)

One-way from

$321
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$909
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 Washington to Bulgaria
Search Deals
One-way flight from Washington to Bulgaria
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 17, 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

Sat 1/31

2:00 pm-1:40 pm

1 stop13h 40m

Sofia

Sat 2/7

6:25 am-10:06 pm

2 stops25h 41m

$521

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 4/1

8:00 am-12:05 pm

2 stops18h 05m

Sofia

Wed 4/8

6:20 am-12:20 pm

1 stop16h 00m

$522

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 4/26

9:50 am-11:10 pm

2 stops27h 20m

Sofia

Tue 5/5

6:10 am-7:05 pm

2 stops22h 55m

$531

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 1/29

7:00 am-1:15 pm

2 stops20h 15m

Sofia

Thu 2/5

6:00 am-6:30 pm

2 stops22h 30m

$531

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 1/31

8:30 am-6:20 pm

2 stops23h 50m

Sofia

Sat 2/7

6:25 am-6:30 pm

2 stops22h 05m

$531

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 4/19

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Tue 4/28

7:00 am-11:10 am

1 stop14h 10m

$533

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 4/26

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Tue 5/5

7:00 am-11:10 am

1 stop14h 10m

$533

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 4/5

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Tue 4/14

7:00 am-11:10 am

1 stop14h 10m

$533

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 4/1

5:35 pm-2:00 pm

1 stop34h 25m

Sofia

Wed 4/8

7:00 am-11:45 am

1 stop14h 45m

$533

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 4/19

7:05 pm-6:40 pm

2 stops37h 35m

Sofia

Tue 4/28

12:55 pm-9:15 am

2 stops30h 20m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 45 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, July is the cheapest month in which you can book a flight from State of Washington to Bulgaria (average of $510). 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 December 17, 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 Sunday afternoons 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 14h 55m. Airlines will cover a distance of 5985 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, July is the cheapest month in which you can book a flight from State of Washington to Bulgaria (average of $510). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$541Average$1,054FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$555Average$718FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$587Average$950FlexibilityNo cancel feeOn-time77%
KLMCheapest$615Average$972FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$621Average$885FlexibilityNo cancel feeOn-time69%

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