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Cheap flights from Sofia to Seattle from $433

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 10/15. 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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0 bags

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Find the cheapest flights from Sofia to Seattle

Cheap round-trip flights

Multiple Airlines Logo
5:00 am - 6:00 pmSOF-SEA
22h 00m3 stops
Multiple Airlines Logo
2:35 pm - 3:00 amSEA-SOF
26h 25m3 stops
$777Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
British Airways Logo
5:25 pm - 11:30 amSOF-SEA
28h 05m1 stop
British Airways Logo
6:50 pm - 8:10 pmSEA-SOF
15h 20m1 stop
$798British Airways
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Mon, Nov 10 - Tue, Nov 25
American Airlines Logo
5:25 pm - 11:30 amSOF-SEA
28h 05m1 stop
American Airlines Logo
12:59 am - 8:10 pmSEA-SOF
33h 11m2 stops
$801American Airlines
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Mon, Nov 10 - Mon, Nov 24
American Airlines Logo
5:25 pm - 11:30 amSOF-SEA
28h 05m1 stop
American Airlines Logo
11:42 am - 8:10 pmSEA-SOF
22h 28m2 stops
$802American Airlines
Find Deal
Mon, Nov 10 - Tue, Nov 25
Lufthansa Logo
6:10 am - 1:10 pmSOF-SEA
16h 00m1 stop
Lufthansa Logo
3:10 pm - 6:20 pmSEA-SOF
17h 10m1 stop
$873Lufthansa
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Fri, Oct 31 - Fri, Nov 7
United Airlines Logo
2:20 pm - 12:59 amSOF-SEA
44h 39m3 stops
United Airlines Logo
10:53 am - 1:15 pmSEA-SOF
16h 22m2 stops
$889United Airlines
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Mon, Nov 10 - Tue, Nov 25
United Airlines Logo
2:20 pm - 12:59 amSOF-SEA
44h 39m3 stops
United Airlines Logo
8:00 am - 1:15 pmSEA-SOF
19h 15m2 stops
$893United Airlines
Find Deal
Mon, Nov 10 - Tue, Nov 25
Lufthansa Logo
6:15 am - 11:55 amSOF-SEA
15h 40m1 stop
Lufthansa Logo
2:20 pm - 2:40 pmSEA-SOF
14h 20m1 stop
$967Lufthansa
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Mon, Oct 13 - Sat, Oct 25
Turkish Airlines Logo
9:25 am - 5:15 pmSOF-SEA
17h 50m1 stop
Turkish Airlines Logo
7:10 pm - 8:25 pmSEA-SOF
15h 15m1 stop
$1,152Turkish Airlines
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Tue, Oct 14 - Mon, Oct 20
Turkish Airlines Logo
9:25 am - 5:15 pmSOF-SEA
17h 50m1 stop
Turkish Airlines Logo
12:30 pm - 2:45 pmSEA-SOF
16h 15m1 stop
$1,293Turkish Airlines
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Tue, Oct 14 - Sat, Oct 18

KLM flights from Sofia to Seattle

Our best KLM deals on Sofia to Seattle flight tickets
KLM
Oct 13
SOF7:00 amSofia
19h 05m
1 stop
SEA4:05 pmSeattle/Tacoma Intl
Oct 21
SEA5:40 pmSeattle/Tacoma Intl
34h 20m
1 stop
SOF2:00 pmSofia
$837
Find similar
KLM
Oct 13
SOF7:00 amSofia
14h 50m
1 stop
SEA11:50 amSeattle/Tacoma Intl
Oct 23
SEA5:40 pmSeattle/Tacoma Intl
34h 20m
1 stop
SOF2:00 pmSofia
$839
Find similar
KLM
Oct 13
SOF7:00 amSofia
14h 50m
1 stop
SEA11:50 amSeattle/Tacoma Intl
Oct 22
SEA9:29 amSeattle/Tacoma Intl
18h 31m
2 stops
SOF2:00 pmSofia
$841
Find similar

American Airlines flights from Sofia to Seattle

Our best American Airlines deals on Sofia to Seattle flight tickets
American Airlines
Nov 10
SOF5:25 pmSofia
28h 05m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Nov 24
SEA12:59 amSeattle/Tacoma Intl
33h 11m
2 stops
SOF8:10 pmSofia
$801
Find similar
American Airlines
Nov 10
SOF5:25 pmSofia
28h 05m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Nov 25
SEA11:42 amSeattle/Tacoma Intl
22h 28m
2 stops
SOF8:10 pmSofia
$802
Find similar
American Airlines
Nov 10
SOF5:25 pmSofia
37h 14m
2 stops
SEA8:39 pmSeattle/Tacoma Intl
Nov 25
SEA11:42 amSeattle/Tacoma Intl
22h 28m
2 stops
SOF8:10 pmSofia
$810
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 September 17, 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 10/30

5:00 am-6:00 pm

3 stops22h 00m

Seattle/Tacoma Intl

Thu 11/6

2:35 pm-3:00 am

3 stops26h 25m

$777

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 11/10

5:25 pm-11:30 am

1 stop28h 05m

Seattle/Tacoma Intl

Tue 11/25

6:50 pm-8:10 pm

1 stop15h 20m

$798

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 11/10

5:25 pm-11:30 am

1 stop28h 05m

Seattle/Tacoma Intl

Mon 11/24

12:59 am-8:10 pm

2 stops33h 11m

$801

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 11/10

5:25 pm-11:30 am

1 stop28h 05m

Seattle/Tacoma Intl

Tue 11/25

11:42 am-8:10 pm

2 stops22h 28m

$802

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Fri 10/31

6:10 am-1:10 pm

1 stop16h 00m

Seattle/Tacoma Intl

Fri 11/7

3:10 pm-6:20 pm

1 stop17h 10m

$873

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 11/10

2:20 pm-12:59 am

3 stops44h 39m

Seattle/Tacoma Intl

Tue 11/25

10:53 am-1:15 pm

2 stops16h 22m

$889

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 11/10

2:20 pm-12:59 am

3 stops44h 39m

Seattle/Tacoma Intl

Tue 11/25

8:00 am-1:15 pm

2 stops19h 15m

$893

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Mon 10/13

6:15 am-11:55 am

1 stop15h 40m

Seattle/Tacoma Intl

Sat 10/25

2:20 pm-2:40 pm

1 stop14h 20m

$967

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Tue 10/14

9:25 am-5:15 pm

1 stop17h 50m

Seattle/Tacoma Intl

Mon 10/20

7:10 pm-8:25 pm

1 stop15h 15m

$1,152

SofiaSeattle

SOF - SEA

SOFSEA

Sofia

Tue 10/14

9:25 am-5:15 pm

1 stop17h 50m

Seattle/Tacoma Intl

Sat 10/18

12:30 pm-2:45 pm

1 stop16h 15m

$1,293

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

Direct flights

None
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 14m 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
7,409 reviews
Search Lufthansa flights
United AirlinesPriceFrom $795Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $824Free CancellationRating
7.3
3,965 reviews
Search Turkish Airlines flights

Traveling to a place near Seattle?

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

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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