How long is the flight from Seattle to Sofia?

For as low as C$ 1,027, Turkish Airlines can have you in Sofia from Seattle in 16h 23m. The distance from Seattle to Sofia is about 9434 km. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Sofia ranges from 30.0 - 70.0 mm per month. June is typically the wettest month, when rainfall can reach 70.0 mm. January is typically the driest time to visit Sofia when rainfall is around 30.0 mm.

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

What is the cheapest time of day to fly from SEA to SOF?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Sofia as you normally would.

Can I find deals for flights from Seattle to Sofia that include hotel bookings?

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

How can I find direct flights from Seattle to Sofia?

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

Can I find deals for business class flights from Seattle to Sofia?

Yes. Cheapflights offers flight deals from Seattle to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 664+ Cheap Flights from Seattle to Sofia

Cheap flight deals from Seattle to Sofia

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Seattle to Sofia
Explore the most affordable flight options available from Seattle to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 October 2026.

Sun 15/117:05 p.m. -

1 stop34h 05m

Tue 1/129:40 p.m. -

1 stop29h 30m

Deal found 7/10C$ 967

Thu 12/117:05 p.m. -

1 stop34h 05m

Thu 19/119:30 a.m. -

1 stop17h 40m

Deal found 2/10C$ 969

Fri 13/117:05 p.m. -

1 stop27h 35m

Sun 29/119:40 p.m. -

1 stop29h 30m

Deal found 4/10C$ 1,110

Sat 14/1111:17 p.m. -

2 stops27h 58m

Sat 28/116:25 a.m. -

1 stop15h 35m

Deal found 4/10C$ 1,285

Sat 14/1112:20 p.m. -

3 stops48h 35m

Sat 28/116:00 a.m. -

2 stops24h 59m

Deal found 4/10C$ 1,322

Fri 13/117:35 p.m. -

3 stops41h 20m

Sat 28/116:25 a.m. -

1 stop15h 35m

Deal found 4/10C$ 1,360

Fri 13/117:35 p.m. -

3 stops41h 20m

Sun 29/116:00 a.m. -

1 stop17h 00m

Deal found 3/10C$ 1,362

Fri 13/117:35 p.m. -

3 stops31h 50m

Sun 29/112:10 p.m. -

2 stops40h 49m

Deal found 4/10C$ 1,387

Find flight deals from Seattle to Sofia

Round-trip from	C$ 967
One-way from	C$ 664
Popular in	June
Cheapest in	January
Average price	C$ 1,053

Turkish Airlines
2/3-16/3
2 total stops
45h 15m total
Seattle to Sofia

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United Airlines
4/11-31/12
1 total stop
22h 05m total
Seattle to Sofia

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (C$ 319 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 70 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 4/11

2:50 p.m.-10:55 p.m.

1 stop22h 05m

Sofia

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 664

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Thu 19/11

2:30 p.m.-10:55 p.m.

2 stops22h 25m

Sofia

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 731

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Fri 13/11

2:50 p.m.-10:55 p.m.

1 stop22h 05m

Sofia

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 735

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Thu 4/3

7:05 p.m.-8:40 a.m.

1 stop27h 35m

Sofia

Tue 16/3

9:30 a.m.-6:10 p.m.

1 stop17h 40m

C$ 967

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Thu 12/11

7:05 p.m.-3:10 p.m.

1 stop34h 05m

Sofia

Thu 19/11

9:30 a.m.-5:10 p.m.

1 stop17h 40m

C$ 969

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 17/1

10:52 a.m.-1:15 p.m.

2 stops16h 23m

Sofia

Thu 21/1

6:25 a.m.-12:00 p.m.

1 stop15h 35m

C$ 1,027

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 3/3

2:50 p.m.-10:55 p.m.

1 stop22h 05m

Sofia

Tue 16/3

7:05 p.m.-2:00 p.m.

1 stop27h 55m

C$ 1,037

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Thu 4/3

1:50 p.m.-11:00 p.m.

1 stop23h 10m

Sofia

Tue 16/3

6:25 a.m.-9:55 p.m.

2 stops24h 30m

C$ 1,110

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sat 14/11

11:17 p.m.-1:15 p.m.

2 stops27h 58m

Sofia

Sat 28/11

6:25 a.m.-12:00 p.m.

1 stop15h 35m

C$ 1,285

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Fri 13/11

7:35 p.m.-10:55 p.m.

3 stops41h 20m

Sofia

Sat 28/11

6:25 a.m.-12:00 p.m.

1 stop15h 35m

C$ 1,360

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Seattle to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Seattle with our price prediction graph.

SEA-SOF

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 Seattle to Sofia

How far ahead should I book a flight from Seattle to Sofia?

The best time to book flights from Seattle to Sofia is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Sofia?

Currently, January is the cheapest month in which you can book a flight from Seattle to Sofia (average of C$ 876). Flying from Seattle to Sofia in June is currently the most expensive (average of C$ 1,634). 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.

How much does it cost to fly round-trip from Seattle to Sofia?

Airfare is below average for this route at the moment.

Seattle to Sofia flights typically cost between C$ 996 and C$ 1,138 in November.
The cheapest round-trip price found within the last 5 days was C$ 967 on Turkish Airlines (15 Nov-1 Dec).

Related info for your journey

How long is the flight from Seattle to Sofia?
For as low as C$ 1,027, Turkish Airlines can have you in Sofia from Seattle in 16h 23m. The distance from Seattle to Sofia is about 9434 km. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Seattle to Sofia that include hotel bookings?
Yes. In addition to deals on Seattle to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Sofia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Sofia.
Can I find deals for business class flights from Seattle to Sofia?
Yes. Cheapflights offers flight deals from Seattle to Sofia 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 Seattle to Sofia?
Currently, January is the cheapest month in which you can book a flight from Seattle to Sofia (average of C$ 876). Flying from Seattle to Sofia in June is currently the most expensive (average of C$ 1,634). 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.

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Deals for Seattle to Sofia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Sofia?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Sofia for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Sofia with no change fees?

Yes, we can. To see specific flights from Seattle to Sofia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Not ready to book yet? You can track prices for flights from Seattle to Sofia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Seattle to Sofia from C$ 664

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Sofia

Cheapest flights from Seattle to SofiaExplore the most affordable flight options available from Seattle to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 October 2026.

Explore the most affordable flight options available from Seattle to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 October 2026.

Best flights from Seattle to SofiaDiscover carefully curated flight deals from Seattle to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 7 October 2026.

Discover carefully curated flight deals from Seattle to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 7 October 2026.

Last-minute flights from Seattle to SofiaDiscover last-minute flight deals from Seattle to Sofia. Data last updated 7 October 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Sofia. Data last updated 7 October 2026 and is based on user searches.

One-way flights from Seattle to SofiaSearch for one-way flight options from Seattle to Sofia. Find affordable one-way fares based on user searches. Data last updated 7 October 2026.

Search for one-way flight options from Seattle to Sofia. Find affordable one-way fares based on user searches. Data last updated 7 October 2026.

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Use the filters below to find and compare flights from Seattle to Sofia that are best for you.

Best time to book a flight from Seattle to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Seattle with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Seattle to Sofia?

The best time to book flights from Seattle to Sofia is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Sofia?

How much does it cost to fly round-trip from Seattle to Sofia?

Airfare is below average for this route at the moment.

Seattle to Sofia flights typically cost between C$ 996 and C$ 1,138 in November.The cheapest round-trip price found within the last 5 days was C$ 967 on Turkish Airlines (15 Nov-1 Dec).

Related info for your journey

How long is the flight from Seattle to Sofia?

Can I find deals for flights from Seattle to Sofia that include hotel bookings?

How can I find direct flights from Seattle to Sofia?

Can I find deals for business class flights from Seattle to Sofia?

What is the cheapest month to book a flight from Seattle to Sofia?

Browse thousands of different options on Cheapflights for your next trip

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Seattle and Sofia flights

Browse other Seattle and Sofia flight options. Last updated on 7 October 2026.

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How does Cheapflights help users find flights from Seattle to Sofia?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Sofia?

Can Cheapflights find flights from Seattle to Sofia with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Sofia become cheaper?

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Travel Smart

Cheapest flights from Seattle to Sofia
Explore the most affordable flight options available from Seattle to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 October 2026.

Best flights from Seattle to Sofia
Discover carefully curated flight deals from Seattle to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 7 October 2026.

Last-minute flights from Seattle to Sofia
Discover last-minute flight deals from Seattle to Sofia. Data last updated 7 October 2026 and is based on user searches.

One-way flights from Seattle to Sofia
Search for one-way flight options from Seattle to Sofia. Find affordable one-way fares based on user searches. Data last updated 7 October 2026.

Seattle to Sofia flights typically cost between C$ 996 and C$ 1,138 in November.
The cheapest round-trip price found within the last 5 days was C$ 967 on Turkish Airlines (15 Nov-1 Dec).