What is the cheapest airline that flies from Washington to Bulgaria?

Lufthansa, United Airlines, and Austrian Airlines are the most popular carriers operating from Washington to Bulgaria

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

Flight times from State of Washington to Bulgaria vary, but if you’re flying out of Seattle and flying into Sofia (one of the most popular routes), then the duration is 13h 50m on average. Another popular route from State of Washington to Bulgaria is flying from Spokane to Sofia, which will take roughly 23h 45m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Bulgaria?

Turkish Airlines, Lufthansa and KLM are the top three most popular airlines that fly to Bulgaria from State of Washington according to our data. Turkish Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Bulgaria. Keep in mind that there are 5 different airlines that fly to Bulgaria on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington to Bulgaria?

Prices for flights from Washington to Bulgaria are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Bulgaria?

As of August 2026, there are 5 operators available to choose from for flights from Washington to Bulgaria.

How old do you have to be to fly from Washington to Bulgaria?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Bulgaria.

What documentation or ID do you need to fly to Bulgaria?

The travel and health documents required for your trip to Bulgaria can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bulgaria. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$266 Cheap Flights from Washington to Bulgaria in 2026

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Find the cheapest flights from Washington to Bulgaria

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 pm - 8:20 pmSEA Seattle/Tacoma Intl-SOF Sofia

15h 05m1 stop Istanbul

3:50 pm - 5:20 pmSOF Sofia-SEA Seattle/Tacoma Intl

35h 30m1 stop Istanbul

$739Turkish Airlines

Sun, Oct 4 - Tue, Oct 20

7:15 pm - 3:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

33h 45m1 stop Istanbul

3:50 pm - 5:20 pmSOF Sofia-SEA Seattle/Tacoma Intl

35h 30m1 stop Istanbul

$740Turkish Airlines

Thu, Oct 8 - Tue, Oct 20

3:15 pm - 1:25 pmPDX Portland-SOF Sofia

36h 10m2 stops Vancouver Intl Frankfurt am Main

6:25 am - 8:46 pmSOF Sofia-PDX Portland

24h 21m2 stops Frankfurt am Main Vancouver Intl

$750Air Canada

Sun, Jan 31 - Thu, Feb 4

11:30 am - 1:15 pmGEG Spokane-SOF Sofia

15h 45m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 11:38 pmSOF Sofia-GEG Spokane

27h 13m2 stops Frankfurt am Main San Francisco

$751United Airlines

Sun, Jan 17 - Thu, Jan 21

11:30 am - 10:55 pmGEG Spokane-SOF Sofia

25h 25m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 11:38 pmSOF Sofia-GEG Spokane

27h 13m2 stops Frankfurt am Main San Francisco

$751Multiple Airlines

Mon, Jan 11 - Wed, Jan 20

5:00 am - 10:55 pmGEG Spokane-SOF Sofia

31h 55m2 stops Denver Intl Munich Franz Josef Strauss

6:25 am - 9:09 pmSOF Sofia-GEG Spokane

24h 44m3 stops Frankfurt am Main Chicago O'Hare Intl Denver Intl

$752United Airlines

Mon, Jan 11 - Wed, Jan 20

6:50 pm - 6:40 pmSEA Seattle/Tacoma Intl-SOF Sofia

13h 50m1 stop Munich Franz Josef Strauss

7:25 pm - 4:59 pmSOF Sofia-SEA Seattle/Tacoma Intl

31h 34m1 stop Munich Franz Josef Strauss

$808Lufthansa

Sun, Sep 13 - Mon, Sep 21

6:50 pm - 6:40 pmSEA Seattle/Tacoma Intl-SOF Sofia

13h 50m1 stop Munich Franz Josef Strauss

6:20 am - 12:20 pmSOF Sofia-SEA Seattle/Tacoma Intl

16h 00m1 stop Frankfurt am Main

$814Lufthansa

Wed, Sep 16 - Wed, Oct 7

8:10 am - 12:20 pmSEA Seattle/Tacoma Intl-BOJ Bourgas

18h 10m2 stops Washington, D.C. Dulles Intl Vienna Intl

11:20 am - 8:18 pmBOJ Bourgas-SEA Seattle/Tacoma Intl

42h 58m2 stops Vienna Intl Washington, D.C. Dulles Intl

$1,485Austrian Airlines

Sat, Sep 5 - Sat, Sep 19

7:00 am - 12:20 pmSEA Seattle/Tacoma Intl-BOJ Bourgas

19h 20m2 stops Chicago O'Hare Intl Vienna Intl

11:20 am - 8:18 pmBOJ Bourgas-SEA Seattle/Tacoma Intl

42h 58m2 stops Vienna Intl Washington, D.C. Dulles Intl

$1,485Austrian Airlines

Sat, Sep 5 - Sat, Sep 19

Cheap last minute flights

Enter your travel dates to find the best prices.

12:33 pm - 11:15 pmGEG Spokane-SOF Sofia

24h 42m2 stops San Francisco Munich Franz Josef Strauss

6:10 am - 7:16 pmSOF Sofia-GEG Spokane

23h 06m2 stops Frankfurt am Main San Francisco

$937Lufthansa

Wed, Aug 12 - Tue, Sep 8

12:33 pm - 11:15 pmGEG Spokane-SOF Sofia

24h 42m2 stops San Francisco Munich Franz Josef Strauss

6:20 am - 6:51 pmSOF Sofia-GEG Spokane

22h 31m2 stops Frankfurt am Main San Francisco

$937Lufthansa

Wed, Aug 12 - Wed, Sep 9

12:33 pm - 11:15 pmGEG Spokane-SOF Sofia

24h 42m2 stops San Francisco Munich Franz Josef Strauss

7:25 pm - 9:14 pmSOF Sofia-GEG Spokane

35h 49m2 stops Munich Franz Josef Strauss Denver Intl

$948Lufthansa

Wed, Aug 12 - Mon, Sep 7

5:00 am - 11:15 pmGEG Spokane-SOF Sofia

32h 15m2 stops Denver Intl Munich Franz Josef Strauss

6:30 am - 10:41 pmSOF Sofia-GEG Spokane

26h 11m2 stops Frankfurt am Main San Francisco

$949United Airlines

Wed, Aug 12 - Thu, Sep 10

1:37 pm - 6:40 pmGEG Spokane-SOF Sofia

19h 03m2 stops Denver Intl Munich Franz Josef Strauss

6:20 am - 10:41 pmSOF Sofia-GEG Spokane

26h 21m2 stops Frankfurt am Main San Francisco

$949United Airlines

Wed, Aug 12 - Fri, Sep 11

3:54 pm - 11:15 pmGEG Spokane-SOF Sofia

21h 21m2 stops Denver Intl Munich Franz Josef Strauss

6:10 am - 9:14 pmSOF Sofia-GEG Spokane

25h 04m2 stops Munich Franz Josef Strauss Denver Intl

$1,000United Airlines

Fri, Aug 14 - Thu, Sep 10

5:30 pm - 11:35 pmSEA Seattle/Tacoma Intl-SOF Sofia

20h 05m1 stop Rome Fiumicino

7:00 am - 5:50 pmSOF Sofia-SEA Seattle/Tacoma Intl

20h 50m1 stop Rome Fiumicino

$1,088Multiple Airlines

Thu, Aug 13 - Thu, Aug 20

5:30 pm - 1:15 pmSEA Seattle/Tacoma Intl-VAR Varna

33h 45m1 stop Rome Fiumicino

4:30 pm - 5:50 pmVAR Varna-SEA Seattle/Tacoma Intl

35h 20m2 stops Sofia Rome Fiumicino

$1,105Multiple Airlines

Sat, Aug 15 - Mon, Aug 31

7:15 pm - 3:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

33h 45m1 stop Istanbul

3:50 pm - 8:43 pmSOF Sofia-SEA Seattle/Tacoma Intl

38h 53m2 stops Istanbul San Francisco

$1,452Turkish Airlines

Wed, Aug 12 - Fri, Sep 4

7:15 pm - 11:45 amSEA Seattle/Tacoma Intl-SOF Sofia

30h 30m1 stop Istanbul

12:35 pm - 10:40 amSOF Sofia-SEA Seattle/Tacoma Intl

32h 05m1 stop Istanbul

$1,492Turkish Airlines

Wed, Aug 12 - Fri, Sep 4

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British Airways flights from State of Washington to Bulgaria

Our best British Airways deals on State of Washington to Bulgaria flight tickets

British Airways

Dec 15

SEA6:45 pmSeattle/Tacoma Intl

15h 25m

1 stop

SOF8:10 pmSofia

Jan 6

SOF9:05 pmSofia

24h 20m

1 stop

SEA11:25 amSeattle/Tacoma Intl

$807

British Airways

Oct 10

PDX7:30 pmPortland

14h 40m

1 stop

SOF8:10 pmSofia

Nov 9

SOF5:15 pmSofia

36h 32m

2 stops

PDX7:47 pmPortland

$888

British Airways

Sep 23

PDX7:30 pmPortland

31h 55m

1 stop

SOF1:25 pmSofia

Sep 30

SOF9:25 pmSofia

36h 42m

2 stops

PDX12:07 amPortland

$921

Turkish Airlines flights from State of Washington to Bulgaria

Our best Turkish Airlines deals on State of Washington to Bulgaria flight tickets

Turkish Airlines

Oct 4

SEA7:15 pmSeattle/Tacoma Intl

15h 05m

1 stop

SOF8:20 pmSofia

Oct 20

SOF3:50 pmSofia

35h 30m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

$739

Turkish Airlines

Oct 8

SEA7:15 pmSeattle/Tacoma Intl

33h 45m

1 stop

SOF3:00 pmSofia

Oct 20

SOF3:50 pmSofia

35h 30m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

$740

Turkish Airlines

Oct 14

SEA7:15 pmSeattle/Tacoma Intl

15h 05m

1 stop

SOF8:20 pmSofia

Oct 23

SOF9:35 amSofia

17h 45m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

$765

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 10/4

7:15 pm-8:20 pm

1 stop15h 05m

Sofia

Tue 10/20

3:50 pm-5:20 pm

1 stop35h 30m

$739

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Thu 10/8

7:15 pm-3:00 pm

1 stop33h 45m

Sofia

Tue 10/20

3:50 pm-5:20 pm

1 stop35h 30m

$740

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Sun 1/31

3:15 pm-1:25 pm

2 stops36h 10m

Sofia

Thu 2/4

6:25 am-8:46 pm

2 stops24h 21m

$750

SpokaneSofia

GEG Spokane - SOF Sofia

GEGSOF

Spokane

Sun 1/17

11:30 am-1:15 pm

2 stops15h 45m

Sofia

Thu 1/21

6:25 am-11:38 pm

2 stops27h 13m

$751

SpokaneSofia

GEG Spokane - SOF Sofia

GEGSOF

Spokane

Mon 1/11

11:30 am-10:55 pm

2 stops25h 25m

Sofia

Wed 1/20

6:25 am-11:38 pm

2 stops27h 13m

$751

SpokaneSofia

GEG Spokane - SOF Sofia

GEGSOF

Spokane

Mon 1/11

5:00 am-10:55 pm

2 stops31h 55m

Sofia

Wed 1/20

6:25 am-9:09 pm

3 stops24h 44m

$752

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 9/13

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Mon 9/21

7:25 pm-4:59 pm

1 stop31h 34m

$808

Quickest round-trip

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 9/16

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Wed 10/7

6:20 am-12:20 pm

1 stop16h 00m

$814

SeattleBurgas

SEA Seattle/Tacoma Intl - BOJ Bourgas

SEABOJ

Seattle/Tacoma Intl

Sat 9/5

8:10 am-12:20 pm

2 stops18h 10m

Bourgas

Sat 9/19

11:20 am-8:18 pm

2 stops42h 58m

$1,485

SeattleBurgas

SEA Seattle/Tacoma Intl - BOJ Bourgas

SEABOJ

Seattle/Tacoma Intl

Sat 9/5

7:00 am-12:20 pm

2 stops19h 20m

Bourgas

Sat 9/19

11:20 am-8:18 pm

2 stops42h 58m

$1,485

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Bulgaria

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Bulgaria?

If you aren’t able to travel to Bulgaria during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $615.

How far in advance should I book a flight from Washington to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $755 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from State of Washington for as low as $673 on momondo.

Can stopping save me money on State of Washington to Bulgaria flights?

You could potentially save up to 30% on your flight if you consider stops on a State of Washington to Bulgaria flight.

Cheap State of Washington to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Bulgaria

Fastest flight time	13h 50m
Direct flights	None

The fastest flight from State of Washington to Bulgaria takes 13h 50m

There are no direct flights from State of Washington to Bulgaria. There are no popular flight routes from State of Washington to Bulgaria.

Search flight deals

Frequently asked questions about flying from Washington to Bulgaria

When did momondo last update prices for flights from Washington to Bulgaria?
Prices for flights from Washington to Bulgaria are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Bulgaria?
As of August 2026, there are 5 operators available to choose from for flights from Washington to Bulgaria.
How old do you have to be to fly from Washington to Bulgaria?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Bulgaria.
What documentation or ID do you need to fly to Bulgaria?
The travel and health documents required for your trip to Bulgaria can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bulgaria. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Bulgaria

Compare and see reviews for airlines that fly from State of Washington to Bulgaria with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $538	Free Cancellation	Rating 7.8 1,556 reviews	Search KLM flights
Lufthansa	PriceFrom $540	Free Cancellation	Rating 6.8 8,181 reviews	Search Lufthansa flights
United Airlines	PriceFrom $545	Free Cancellation	Rating 7.4 10,109 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $570	Free Cancellation	Rating 7.4 4,479 reviews	Search Turkish Airlines flights
Austrian Airlines	PriceFrom $884	Free Cancellation	Rating 7.6 947 reviews	Search Austrian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Bulgaria?

It is quick and easy to find Washington to Bulgaria flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bulgaria that suits you.

Can I find flights from Washington to Bulgaria with flexible booking policies on momondo?

Yes. All flights to Bulgaria from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to Bulgaria?

Once all potential Washington to Bulgaria flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Bulgaria right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to Bulgaria flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities in Bulgaria

Flights to Sofiafrom $583

Flights to Varnafrom $701

Flights to Burgasfrom $869

Flights to Plovdivfrom $740

Cheap flights from Washington to Bulgaria from $266

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Bulgaria departing on 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from State of Washington to Bulgaria

Our best British Airways deals on State of Washington to Bulgaria flight tickets

Turkish Airlines flights from State of Washington to Bulgaria

Our best Turkish Airlines deals on State of Washington to Bulgaria flight tickets

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See travel insights to Bulgaria from

How to get the cheapest flight ticket from State of Washington to Bulgaria

What is the cheapest month to fly to Bulgaria?

How far in advance should I book a flight from Washington to Bulgaria?

Can stopping save me money on State of Washington to Bulgaria flights?

What is the cheapest airline that flies from Washington to Bulgaria?

What airlines fly to Bulgaria?

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

Cheap State of Washington to Bulgaria flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington to Bulgaria

Best airlines flying from State of Washington to Bulgaria

Compare and see reviews for airlines that fly from State of Washington to Bulgaria with momondo

Why use momondo?

An easier way to manage your Bulgaria trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Popular cities in Bulgaria

Popular flights according to clicks in the last 7 days on momondo

State of Washington flight routes

According to popular flight searches on momondo this year

Bulgaria flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Bulgaria

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Cabin classes currently available on flights to Bulgaria

List of cabin classes available on flights landing in Bulgaria. Availability may vary depending on flight origin and airline.

Complete your trip to Bulgaria

Explore popular destinations other users love

According to popular flight searches on momondo this year