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

Istanbul (IST) was the most common stop: 78% 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 September 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.

$508 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.

6:00 am - 5:00 pmSOF Sofia-SEA Seattle/Tacoma Intl

45h 00m2 stops London Luton Reykjavik Keflavik Intl

2:35 pm - 1:25 amSEA Seattle/Tacoma Intl-SOF Sofia

24h 50m2 stops Reykjavik Keflavik Intl London Gatwick

$623Multiple Airlines

Mon, Nov 2 - Sun, Nov 15

6:00 am - 11:47 amSOF Sofia-SEA Seattle/Tacoma Intl

39h 47m2 stops London Luton Amsterdam Schiphol

4:50 pm - 1:25 amSEA Seattle/Tacoma Intl-SOF Sofia

22h 35m1 stop London Heathrow

$721Multiple Airlines

Mon, Nov 2 - Sun, Nov 15

6:00 am - 4:50 pmSOF Sofia-SEA Seattle/Tacoma Intl

20h 50m1 stop London Luton

6:55 pm - 1:25 amSEA Seattle/Tacoma Intl-SOF Sofia

20h 30m1 stop London Heathrow

$732Multiple Airlines

Mon, Nov 2 - Sun, Nov 15

6:00 am - 6:05 pmSOF Sofia-SEA Seattle/Tacoma Intl

21h 05m1 stop London Luton

6:55 pm - 9:35 pmSEA Seattle/Tacoma Intl-SOF Sofia

16h 40m1 stop London Heathrow

$734Multiple Airlines

Sun, Oct 25 - Sat, Nov 7

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

35h 30m1 stop Istanbul

10:50 am - 8:50 amSEA Seattle/Tacoma Intl-SOF Sofia

36h 00m2 stops Chicago O'Hare Intl Istanbul

$965Turkish Airlines

Thu, Oct 22 - Tue, Nov 10

3:50 pm - 10:56 pmSOF Sofia-SEA Seattle/Tacoma Intl

41h 06m2 stops Istanbul Chicago O'Hare Intl

10:50 am - 8:55 pmSEA Seattle/Tacoma Intl-SOF Sofia

25h 05m2 stops Chicago O'Hare Intl Istanbul

$968Turkish Airlines

Thu, Oct 22 - Fri, Oct 30

3:50 pm - 10:56 pmSOF Sofia-SEA Seattle/Tacoma Intl

41h 06m2 stops Istanbul Chicago O'Hare Intl

10:50 am - 8:55 pmSEA Seattle/Tacoma Intl-SOF Sofia

25h 05m2 stops Chicago O'Hare Intl Istanbul

$968Turkish Airlines

Wed, Oct 21 - Fri, Oct 30

12:55 pm - 4:59 pmSOF Sofia-SEA Seattle/Tacoma Intl

14h 04m1 stop Munich Franz Josef Strauss

1:50 pm - 1:25 pmSEA Seattle/Tacoma Intl-SOF Sofia

13h 35m1 stop Frankfurt am Main

$1,025Lufthansa

Fri, Sep 18 - Mon, Nov 30

6:10 am - 4:59 pmSOF Sofia-SEA Seattle/Tacoma Intl

20h 49m1 stop Munich Franz Josef Strauss

1:50 pm - 11:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

23h 10m1 stop Frankfurt am Main

$3,644Lufthansa

Fri, Sep 18 - Mon, Nov 30

6:10 am - 9:15 pmSOF Sofia-SEA Seattle/Tacoma Intl

25h 05m2 stops Munich Franz Josef Strauss Denver Intl

7:45 am - 1:25 pmSEA Seattle/Tacoma Intl-SOF Sofia

19h 40m2 stops Toronto Pearson Intl Frankfurt am Main

$3,784Lufthansa

Fri, Sep 18 - Mon, Nov 30

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Turkish Airlines flights from Sofia to Seattle

Our best Turkish Airlines deals on Sofia to Seattle flight tickets

Turkish Airlines

Oct 22

SOF3:50 pmSofia

35h 30m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

Nov 10

SEA10:50 amSeattle/Tacoma Intl

36h 00m

2 stops

SOF8:50 amSofia

$965

Turkish Airlines

Oct 21

SOF3:50 pmSofia

35h 30m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

Oct 28

SEA10:50 amSeattle/Tacoma Intl

39h 15m

2 stops

SOF11:05 amSofia

$979

Turkish Airlines

Oct 20

SOF3:50 pmSofia

35h 30m

1 stop

SEA5:20 pmSeattle/Tacoma Intl

Oct 27

SEA10:50 amSeattle/Tacoma Intl

43h 20m

2 stops

SOF3:10 pmSofia

$990

British Airways flights from Sofia to Seattle

Our best British Airways deals on Sofia to Seattle flight tickets

British Airways

Oct 18

SOF9:05 pmSofia

24h 30m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 25

SEA6:12 amSeattle/Tacoma Intl

25h 08m

2 stops

SOF4:20 pmSofia

$1,017

British Airways

Oct 5

SOF8:10 pmSofia

25h 25m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 18

SEA3:14 pmSeattle/Tacoma Intl

18h 06m

2 stops

SOF7:20 pmSofia

$1,074

British Airways

Oct 23

SOF2:15 pmSofia

31h 20m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 27

SEA2:30 pmSeattle/Tacoma Intl

20h 40m

1 stop

SOF8:10 pmSofia

$1,110

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Mon 11/2

6:00 am-5:00 pm

2 stops45h 00m

Seattle/Tacoma Intl

Sun 11/15

2:35 pm-1:25 am

2 stops24h 50m

$623

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Mon 11/2

6:00 am-11:47 am

2 stops39h 47m

Seattle/Tacoma Intl

Sun 11/15

4:50 pm-1:25 am

1 stop22h 35m

$721

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Mon 11/2

6:00 am-4:50 pm

1 stop20h 50m

Seattle/Tacoma Intl

Sun 11/15

6:55 pm-1:25 am

1 stop20h 30m

$732

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Sun 10/25

6:00 am-6:05 pm

1 stop21h 05m

Seattle/Tacoma Intl

Sat 11/7

6:55 pm-9:35 pm

1 stop16h 40m

$734

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Thu 10/22

3:50 pm-5:20 pm

1 stop35h 30m

Seattle/Tacoma Intl

Tue 11/10

10:50 am-8:50 am

2 stops36h 00m

$965

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Thu 10/22

3:50 pm-10:56 pm

2 stops41h 06m

Seattle/Tacoma Intl

Fri 10/30

10:50 am-8:55 pm

2 stops25h 05m

$968

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Wed 10/21

3:50 pm-10:56 pm

2 stops41h 06m

Seattle/Tacoma Intl

Fri 10/30

10:50 am-8:55 pm

2 stops25h 05m

$968

Quickest round-trip

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Fri 9/18

12:55 pm-4:59 pm

1 stop14h 04m

Seattle/Tacoma Intl

Mon 11/30

1:50 pm-1:25 pm

1 stop13h 35m

$1,025

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Fri 9/18

6:10 am-4:59 pm

1 stop20h 49m

Seattle/Tacoma Intl

Mon 11/30

1:50 pm-11:00 pm

1 stop23h 10m

$3,644

SofiaSeattle

SOF Sofia - SEA Seattle/Tacoma Intl

SOFSEA

Sofia

Fri 9/18

6:10 am-9:15 pm

2 stops25h 05m

Seattle/Tacoma Intl

Mon 11/30

7:45 am-1:25 pm

2 stops19h 40m

$3,784

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	$508
Fastest flight time	14h 04m
Direct flights	None

The best one-way flight to Seattle from Sofia in the past 72 hours is $508. The best round-trip flight deal from Sofia to Seattle found on momondo in the last 72 hours is $623.

The fastest flight from Sofia to Seattle takes 14h 04m

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 14h 04m 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 September 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 (73% of total bookings). The next most popular airline is Lufthansa (27%).

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
Turkish Airlines	PriceFrom $854	Free Cancellation	Rating 7.4 4,475 reviews		Search Turkish Airlines flights
Lufthansa	PriceFrom $906	Free Cancellation	Rating 6.8 8,217 reviews		Search Lufthansa flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Kent

Olympia

Redmond

Lakewood

Federal Way

Fife

Puyallup

Tukwila

Lynnwood

Cle Elum

Marysville

Kirkland

Lacey

Centralia

Shoreline

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.