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Cheap flights from Sofia to Seattle from $356

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sofia to Seattle departing on 1/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Sofia to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:55 am - 3:40 pmSOF-SEA
17h 45m2 stops
Multiple Airlines Logo
5:40 pm - 11:55 pmSEA-SOF
20h 15m2 stops
$674Multiple Airlines
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Thu, Jan 22 - Thu, Feb 5
Multiple Airlines Logo
6:05 am - 3:40 pmSOF-SEA
19h 35m3 stops
Multiple Airlines Logo
5:40 pm - 11:55 pmSEA-SOF
20h 15m2 stops
$710Multiple Airlines
Find Deal
Thu, Jan 22 - Thu, Feb 5
Multiple Airlines Logo
5:00 am - 5:00 pmSOF-SEA
22h 00m3 stops
Multiple Airlines Logo
2:35 pm - 9:50 amSEA-SOF
33h 15m3 stops
$791Multiple Airlines
Find Deal
Thu, Jan 22 - Thu, Feb 5
Lufthansa Logo
6:00 am - 12:10 pmSOF-SEA
16h 10m1 stop
Lufthansa Logo
7:00 am - 1:15 pmSEA-SOF
20h 15m2 stops
$799Lufthansa
Find Deal
Thu, Jan 22 - Thu, Feb 5
Multiple Airlines Logo
7:00 am - 11:50 amSOF-SEA
14h 50m1 stop
Multiple Airlines Logo
1:40 pm - 1:55 pmSEA-SOF
14h 15m1 stop
$805Multiple Airlines
Find Deal
Thu, Jan 22 - Thu, Feb 5
Multiple Airlines Logo
7:00 am - 11:50 amSOF-SEA
14h 50m1 stop
Multiple Airlines Logo
7:40 am - 1:55 pmSEA-SOF
20h 15m2 stops
$809Multiple Airlines
Find Deal
Mon, Jan 26 - Tue, Feb 10
KLM Logo
7:00 am - 3:50 pmSOF-SEA
18h 50m1 stop
KLM Logo
9:30 am - 2:00 pmSEA-SOF
18h 30m2 stops
$813KLM
Find Deal
Wed, Apr 8 - Thu, Apr 30
KLM Logo
7:00 am - 12:35 pmSOF-SEA
14h 35m1 stop
KLM Logo
9:00 am - 2:00 pmSEA-SOF
19h 00m2 stops
$814KLM
Find Deal
Thu, Mar 12 - Thu, Apr 2
Multiple Airlines Logo
7:00 am - 8:46 pmSOF-SEA
23h 46m2 stops
Multiple Airlines Logo
1:40 pm - 1:55 pmSEA-SOF
14h 15m1 stop
$815Multiple Airlines
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Thu, Feb 5 - Thu, Feb 26
Air Canada Logo
6:10 am - 7:16 pmSOF-SEA
23h 06m2 stops
Air Canada Logo
5:50 am - 6:20 pmSEA-SOF
26h 30m2 stops
$818Air Canada
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Mon, Jan 26 - Tue, Feb 10

United Airlines flights from Sofia to Seattle

Our best United Airlines deals on Sofia to Seattle flight tickets
United Airlines
Apr 23
SOF6:10 amSofia
16h 10m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
May 28
SEA6:50 pmSeattle/Tacoma Intl
18h 20m
1 stop
SOF11:10 pmSofia
$834
Find similar
United Airlines
Apr 23
SOF6:10 amSofia
16h 10m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
May 28
SEA6:50 pmSeattle/Tacoma Intl
18h 20m
1 stop
SOF11:10 pmSofia
$835
Find similar
United Airlines
Apr 8
SOF6:20 amSofia
16h 00m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
Apr 30
SEA2:10 pmSeattle/Tacoma Intl
22h 40m
1 stop
SOF10:50 pmSofia
$836
Find similar

KLM flights from Sofia to Seattle

Our best KLM deals on Sofia to Seattle flight tickets
KLM
Apr 8
SOF7:00 amSofia
18h 50m
1 stop
SEA3:50 pmSeattle/Tacoma Intl
Apr 30
SEA9:30 amSeattle/Tacoma Intl
18h 30m
2 stops
SOF2:00 pmSofia
$813
Find similar
KLM
Mar 12
SOF7:00 amSofia
14h 35m
1 stop
SEA12:35 pmSeattle/Tacoma Intl
Apr 2
SEA9:00 amSeattle/Tacoma Intl
19h 00m
2 stops
SOF2:00 pmSofia
$814
Find similar
KLM
Apr 8
SOF7:00 amSofia
17h 55m
2 stops
SEA2:55 pmSeattle/Tacoma Intl
Apr 30
SEA9:30 amSeattle/Tacoma Intl
18h 30m
2 stops
SOF2:00 pmSofia
$823
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sofia to Seattle 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, momondo users made 832,500 searches. Data last updated December 3, 2025.
Use the filters below to find and compare flights from Sofia to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 1/22

7:55 am-3:40 pm

2 stops17h 45m

Seattle/Tacoma Intl

Thu 2/5

5:40 pm-11:55 pm

2 stops20h 15m

$674

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 1/22

6:05 am-3:40 pm

3 stops19h 35m

Seattle/Tacoma Intl

Thu 2/5

5:40 pm-11:55 pm

2 stops20h 15m

$710

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 1/22

5:00 am-5:00 pm

3 stops22h 00m

Seattle/Tacoma Intl

Thu 2/5

2:35 pm-9:50 am

3 stops33h 15m

$791

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 1/22

6:00 am-12:10 pm

1 stop16h 10m

Seattle/Tacoma Intl

Thu 2/5

7:00 am-1:15 pm

2 stops20h 15m

$799

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 1/22

7:00 am-11:50 am

1 stop14h 50m

Seattle/Tacoma Intl

Thu 2/5

1:40 pm-1:55 pm

1 stop14h 15m

$805

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 1/26

7:00 am-11:50 am

1 stop14h 50m

Seattle/Tacoma Intl

Tue 2/10

7:40 am-1:55 pm

2 stops20h 15m

$809

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Wed 4/8

7:00 am-3:50 pm

1 stop18h 50m

Seattle/Tacoma Intl

Thu 4/30

9:30 am-2:00 pm

2 stops18h 30m

$813

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 3/12

7:00 am-12:35 pm

1 stop14h 35m

Seattle/Tacoma Intl

Thu 4/2

9:00 am-2:00 pm

2 stops19h 00m

$814

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Thu 2/5

7:00 am-8:46 pm

2 stops23h 46m

Seattle/Tacoma Intl

Thu 2/26

1:40 pm-1:55 pm

1 stop14h 15m

$815

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 1/26

6:10 am-7:16 pm

2 stops23h 06m

Seattle/Tacoma Intl

Tue 2/10

5:50 am-6:20 pm

2 stops26h 30m

$818

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

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

What is the typical price of a round-trip flight between Sofia and Seattle?

What is the cheapest month to fly to Seattle?

In general, February 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 $802. If you don’t want to visit Seattle in February, then you should wait until June to fly from Sofia, when ticket prices are also cheap, with an average price of $834.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Sofia is on a Sunday. momondo users have found tickets for Sunday departures for as low as $878. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Sofia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,068.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Sofia in the evening is the least expensive time of day to depart. momondo users have found prices as low as $854 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $929. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How have Sofia to Seattle flight prices changed over time?

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

Fastest flight time

15h 45m

Direct flights

None
The fastest flight from Sofia to Seattle takes 15h 45m
There are no direct flights from Sofia to Seattle. There are no popular flight routes from Sofia to Seattle.
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  • 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 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?

  • 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?

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
LufthansaPriceFrom $791Free CancellationRating
6.8
7,605 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $824Free CancellationRating
7.3
4,071 reviews
Search Turkish Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Tukwila
Redmond
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
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.

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