Which airport is the most popular layover for flights between Sofia and Seattle?

Istanbul (IST) was the most common stop: 90% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Sofia to Seattle?

Flights via Amsterdam (AMS) offer the lowest average round-trip price of $1,018.

Which layover airport has the shortest travel time from Sofia to Seattle?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 14h 50m.

Which layover airport has the shortest connection time from Sofia to Seattle?

Amsterdam (AMS) has the shortest average layover time for this route: 1h 25m.

When did momondo last update prices for flights from Sofia Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Sofia Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Sofia Airport to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Sofia Airport to Seattle/Tacoma Intl Airport is 2 as of August 2026.

How old do you have to be to fly from Sofia Airport to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sofia Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$385 Cheap Flights from Sofia to Seattle in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sofia to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:15 am - 5:10 pmSOF Sofia-SEA Seattle/Tacoma Intl

39h 55m2 stops Berlin Brandenburg Dublin

7:10 pm - 11:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

17h 50m1 stop Dublin

$914Multiple Airlines

Mon, Oct 12 - Mon, Oct 19

3:50 pm - 10:53 pmSOF Sofia-SEA Seattle/Tacoma Intl

41h 03m2 stops Istanbul Chicago O'Hare Intl

10:42 am - 3:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

42h 18m2 stops Chicago O'Hare Intl Istanbul

$937Turkish Airlines

Sun, Oct 4 - Sat, Oct 17

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

35h 30m1 stop Istanbul

10:42 am - 8:20 pmSEA Seattle/Tacoma Intl-SOF Sofia

23h 38m2 stops Chicago O'Hare Intl Istanbul

$978Turkish Airlines

Sat, Oct 10 - Fri, Oct 23

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

35h 30m1 stop Istanbul

10:42 am - 8:20 pmSEA Seattle/Tacoma Intl-SOF Sofia

23h 38m2 stops Chicago O'Hare Intl Istanbul

$978Turkish Airlines

Sun, Oct 4 - Sat, Oct 17

4:00 pm - 12:20 pmSOF Sofia-SEA Seattle/Tacoma Intl

30h 20m2 stops Belgrade Nikola Tesla Frankfurt am Main

6:50 pm - 3:30 pmSEA Seattle/Tacoma Intl-SOF Sofia

34h 40m3 stops Munich Franz Josef Strauss Frankfurt am Main Belgrade Nikola Tesla

$1,006Multiple Airlines

Sun, Oct 4 - Sat, Oct 17

9:10 pm - 4:05 pmSOF Sofia-SEA Seattle/Tacoma Intl

28h 55m2 stops Istanbul Chicago O'Hare Intl

1:20 pm - 3:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

39h 40m2 stops San Francisco Istanbul

$1,012Multiple Airlines

Mon, Oct 12 - Mon, Oct 19

5:00 am - 5:55 pmSOF Sofia-SEA Seattle/Tacoma Intl

22h 55m3 stops Belgrade Nikola Tesla Stockholm Arlanda Reykjavik Keflavik Intl

3:40 pm - 10:30 pmSEA Seattle/Tacoma Intl-SOF Sofia

20h 50m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

$1,015Multiple Airlines

Mon, Oct 12 - Mon, Oct 19

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

16h 00m1 stop Frankfurt am Main

2:10 pm - 6:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

17h 50m1 stop Frankfurt am Main

$1,031Lufthansa

Mon, Oct 12 - Mon, Oct 19

6:10 am - 11:55 amSOF Sofia-SEA Seattle/Tacoma Intl

15h 45m1 stop Frankfurt am Main

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

13h 50m1 stop Munich Franz Josef Strauss

$1,044Lufthansa

Tue, Sep 22 - Fri, Oct 9

6:20 am - 11:55 amSOF Sofia-SEA Seattle/Tacoma Intl

15h 35m1 stop Frankfurt am Main

6:50 pm - 11:15 pmSEA Seattle/Tacoma Intl-SOF Sofia

18h 25m1 stop Munich Franz Josef Strauss

$1,044Lufthansa

Wed, Sep 23 - Fri, Oct 9

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United Airlines flights from Sofia to Seattle

Our best United Airlines deals on Sofia to Seattle flight tickets

United Airlines

Sep 24

SOF6:30 amSofia

26h 17m

2 stops

SEA10:47 pmSeattle/Tacoma Intl

Oct 9

SEA6:50 pmSeattle/Tacoma Intl

18h 25m

1 stop

SOF11:15 pmSofia

$1,044

United Airlines

Sep 20

SOF6:20 amSofia

22h 54m

2 stops

SEA7:14 pmSeattle/Tacoma Intl

Oct 9

SEA6:50 pmSeattle/Tacoma Intl

18h 25m

1 stop

SOF11:15 pmSofia

$1,049

United Airlines

Dec 18

SOF6:25 amSofia

26h 07m

2 stops

SEA10:32 pmSeattle/Tacoma Intl

Jan 1

SEA8:38 amSeattle/Tacoma Intl

28h 17m

2 stops

SOF10:55 pmSofia

$1,050

Turkish Airlines flights from Sofia to Seattle

Our best Turkish Airlines deals on Sofia to Seattle flight tickets

Turkish Airlines

Oct 4

SOF3:50 pmSofia

41h 03m

2 stops

SEA10:53 pmSeattle/Tacoma Intl

Oct 17

SEA10:42 amSeattle/Tacoma Intl

42h 18m

2 stops

SOF3:00 pmSofia

$937

Turkish Airlines

Oct 4

SOF3:50 pmSofia

35h 30m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

Oct 17

SEA10:42 amSeattle/Tacoma Intl

23h 38m

2 stops

SOF8:20 pmSofia

$978

Turkish Airlines

Oct 10

SOF3:50 pmSofia

35h 30m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

Oct 23

SEA7:15 pmSeattle/Tacoma Intl

15h 05m

1 stop

SOF8:20 pmSofia

$1,010

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Mon 10/12

11:15 am-5:10 pm

2 stops39h 55m

Seattle/Tacoma Intl

Mon 10/19

7:10 pm-11:00 pm

1 stop17h 50m

$914

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Sun 10/4

3:50 pm-10:53 pm

2 stops41h 03m

Seattle/Tacoma Intl

Sat 10/17

10:42 am-3:00 pm

2 stops42h 18m

$937

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Sat 10/10

3:50 pm-5:20 pm

1 stop35h 30m

Seattle/Tacoma Intl

Fri 10/23

10:42 am-8:20 pm

2 stops23h 38m

$978

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Sun 10/4

3:50 pm-5:20 pm

1 stop35h 30m

Seattle/Tacoma Intl

Sat 10/17

10:42 am-8:20 pm

2 stops23h 38m

$978

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Sun 10/4

4:00 pm-12:20 pm

2 stops30h 20m

Seattle/Tacoma Intl

Sat 10/17

6:50 pm-3:30 pm

3 stops34h 40m

$1,006

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Mon 10/12

9:10 pm-4:05 pm

2 stops28h 55m

Seattle/Tacoma Intl

Mon 10/19

1:20 pm-3:00 pm

2 stops39h 40m

$1,012

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Mon 10/12

5:00 am-5:55 pm

3 stops22h 55m

Seattle/Tacoma Intl

Mon 10/19

3:40 pm-10:30 pm

2 stops20h 50m

$1,015

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Mon 10/12

6:20 am-12:20 pm

1 stop16h 00m

Seattle/Tacoma Intl

Mon 10/19

2:10 pm-6:00 pm

1 stop17h 50m

$1,031

Quickest round-trip

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Tue 9/22

6:10 am-11:55 am

1 stop15h 45m

Seattle/Tacoma Intl

Fri 10/9

6:50 pm-6:40 pm

1 stop13h 50m

$1,044

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Wed 9/23

6:20 am-11:55 am

1 stop15h 35m

Seattle/Tacoma Intl

Fri 10/9

6:50 pm-11:15 pm

1 stop18h 25m

$1,044

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 Sofia to Seattle

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

Layovers

What is the cheapest month to fly to Seattle?

In general, August is the cheapest month to fly from Sofia to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you don’t want to visit Seattle in August, then you should wait until March to fly from Sofia, when ticket prices are also cheap, with an average price of $863.

When to book flights from Sofia to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Sofia to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sofia to Seattle (SOF to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Seattle

Best Price Found	$385
Fastest flight time	15h 35m
Direct flights	None

The best one-way flight to Seattle from Sofia in the past 72 hours is $385. The best round-trip flight deal from Sofia to Seattle found on momondo in the last 72 hours is $914.

The fastest flight from Sofia to Seattle takes 15h 35m

There are no direct flights from Sofia to Seattle. There are no popular flight routes from Sofia to Seattle.

Search flight deals

Frequently asked questions about flying from Sofia to Seattle

How far is Sofia to Seattle/Tacoma Intl by plane?
Sofia and Seattle/Tacoma Intl are 5850.6 mi apart from one another. Typically, this will take 15h 35m by plane in normal conditions.
When did momondo last update prices for flights from Sofia Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Sofia Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Sofia Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Sofia Airport to Seattle/Tacoma Intl Airport is 2 as of August 2026.
How old do you have to be to fly from Sofia Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sofia Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sofia to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Sofia to Seattle is Turkish Airlines (71% of total bookings). The next most popular airline is Lufthansa (29%).

Best airlines flying from Sofia to Seattle

Compare and see reviews for airlines that fly from Sofia to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $850	Free Cancellation	Rating 6.8 8,226 reviews		Search Lufthansa flights
Turkish Airlines	PriceFrom $854	Free Cancellation	Rating 7.4 4,485 reviews		Search Turkish Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Kent

Olympia

Redmond

Lynnwood

Lakewood

Federal Way

Puyallup

Tukwila

Fife

Cle Elum

Marysville

Kirkland

Shoreline

Centralia

Lacey

Why use momondo?

Why should I use momondo to find a flight deal from Sofia to Seattle?

Finding the right flight to Seattle from Sofia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Sofia to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Sofia with this policy.

How can momondo help me find flights from Sofia to Seattle?

Once all potential Sofia to Seattle 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 Sofia to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Sofia to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.