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Cheap flights from Seattle to Bulgaria from $335

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bulgaria departing on 11/28. 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 Seattle to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
7:00 am - 6:20 pmSEA-SOF
26h 20m2 stops
Lufthansa Logo
6:10 am - 12:20 pmSOF-SEA
16h 10m1 stop
$479Lufthansa
Find Deal
Tue, Mar 10 - Tue, Mar 31
United Airlines Logo
11:15 pm - 1:00 pmSEA-SOF
27h 45m2 stops
United Airlines Logo
2:00 pm - 1:20 pmSOF-SEA
33h 20m1 stop
$486United Airlines
Find Deal
Sat, Dec 27 - Tue, Jan 13
United Airlines Logo
11:15 pm - 1:00 pmSEA-SOF
27h 45m2 stops
United Airlines Logo
6:05 am - 10:16 pmSOF-SEA
26h 11m2 stops
$491United Airlines
Find Deal
Sat, Dec 27 - Wed, Jan 14
Multiple Airlines Logo
2:00 pm - 10:45 pmSEA-SOF
22h 45m1 stop
Multiple Airlines Logo
6:00 am - 10:16 pmSOF-SEA
26h 16m2 stops
$526Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
1:40 pm - 1:55 pmSEA-SOF
14h 15m1 stop
Multiple Airlines Logo
7:00 am - 11:50 amSOF-SEA
14h 50m1 stop
$529Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Turkish Airlines Logo
6:57 am - 3:00 pmSEA-SOF
22h 03m2 stops
Turkish Airlines Logo
3:50 pm - 10:29 pmSOF-SEA
40h 39m2 stops
$567Turkish Airlines
Find Deal
Tue, Mar 31 - Mon, Apr 6
Turkish Airlines Logo
7:10 pm - 3:00 pmSEA-SOF
33h 50m1 stop
Turkish Airlines Logo
9:05 pm - 10:29 pmSOF-SEA
35h 24m2 stops
$569Turkish Airlines
Find Deal
Tue, Mar 31 - Mon, Apr 6
KLM Logo
8:15 am - 2:05 pmSEA-SOF
19h 50m2 stops
KLM Logo
7:00 am - 11:50 amSOF-SEA
14h 50m1 stop
$688KLM
Find Deal
Wed, Dec 24 - Mon, Jan 12
KLM Logo
8:05 am - 2:05 pmSEA-SOF
20h 00m2 stops
KLM Logo
7:00 am - 7:00 pmSOF-SEA
22h 00m2 stops
$698KLM
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Wed, Dec 24 - Wed, Jan 14
Air Canada Logo
8:10 am - 6:20 pmSEA-SOF
25h 10m2 stops
Air Canada Logo
6:20 am - 7:18 pmSOF-SEA
22h 58m2 stops
$725Air Canada
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Mon, Mar 9 - Mon, Apr 27

Turkish Airlines flights from Seattle to Bulgaria

Our best Turkish Airlines deals on Seattle to Bulgaria flight tickets
Turkish Airlines
Mar 31
SEA6:57 amSeattle/Tacoma Intl
22h 03m
2 stops
SOF3:00 pmSofia
Apr 6
SOF3:50 pmSofia
40h 39m
2 stops
SEA10:29 pmSeattle/Tacoma Intl
$567
Find similar
Turkish Airlines
Mar 31
SEA7:10 pmSeattle/Tacoma Intl
33h 50m
1 stop
SOF3:00 pmSofia
Apr 6
SOF9:05 pmSofia
35h 24m
2 stops
SEA10:29 pmSeattle/Tacoma Intl
$569
Find similar
Turkish Airlines
Apr 7
SEA7:10 pmSeattle/Tacoma Intl
15h 05m
1 stop
SOF8:15 pmSofia
Apr 21
SOF9:35 amSofia
17h 40m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$593
Find similar

Lufthansa flights from Seattle to Bulgaria

Our best Lufthansa deals on Seattle to Bulgaria flight tickets
Lufthansa
Mar 10
SEA7:00 amSeattle/Tacoma Intl
26h 20m
2 stops
SOF6:20 pmSofia
Mar 31
SOF6:10 amSofia
16h 10m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$479
Find similar
Lufthansa
Dec 2
SEA2:00 pmSeattle/Tacoma Intl
22h 45m
1 stop
SOF10:45 pmSofia
Dec 9
SOF6:00 amSofia
16h 10m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$532
Find similar
Lufthansa
Mar 24
SEA10:05 amSeattle/Tacoma Intl
23h 15m
2 stops
SOF6:20 pmSofia
Apr 28
SOF6:10 amSofia
26h 19m
2 stops
SEA10:29 pmSeattle/Tacoma Intl
$579
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Bulgaria 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 November 6, 2025.
Use the filters below to find and compare flights from Seattle to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 3/10

7:00 am-6:20 pm

2 stops26h 20m

Sofia

Tue 3/31

6:10 am-12:20 pm

1 stop16h 10m

$479

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sat 12/27

11:15 pm-1:00 pm

2 stops27h 45m

Sofia

Tue 1/13

2:00 pm-1:20 pm

1 stop33h 20m

$486

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sat 12/27

11:15 pm-1:00 pm

2 stops27h 45m

Sofia

Wed 1/14

6:05 am-10:16 pm

2 stops26h 11m

$491

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 12/2

2:00 pm-10:45 pm

1 stop22h 45m

Sofia

Tue 12/9

6:00 am-10:16 pm

2 stops26h 16m

$526

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 12/2

1:40 pm-1:55 pm

1 stop14h 15m

Sofia

Tue 12/9

7:00 am-11:50 am

1 stop14h 50m

$529

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 3/31

6:57 am-3:00 pm

2 stops22h 03m

Sofia

Mon 4/6

3:50 pm-10:29 pm

2 stops40h 39m

$567

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 3/31

7:10 pm-3:00 pm

1 stop33h 50m

Sofia

Mon 4/6

9:05 pm-10:29 pm

2 stops35h 24m

$569

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 12/24

8:15 am-2:05 pm

2 stops19h 50m

Sofia

Mon 1/12

7:00 am-11:50 am

1 stop14h 50m

$688

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 12/24

8:05 am-2:05 pm

2 stops20h 00m

Sofia

Wed 1/14

7:00 am-7:00 pm

2 stops22h 00m

$698

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 3/9

8:10 am-6:20 pm

2 stops25h 10m

Sofia

Mon 4/27

6:20 am-7:18 pm

2 stops22h 58m

$725

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 Bulgaria from

How to get the cheapest flight ticket from Seattle to Bulgaria

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 cheapest month to fly to Bulgaria?

If you aren’t able to travel to Bulgaria during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $644.

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

The cheapest day to depart from Seattle to Bulgaria is on a Saturday when prices can be found for as low as $897. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,269.

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

In the evening is the cheapest time of day to fly from Seattle to Bulgaria when you can find flight prices for as low as $897. Flying to Bulgaria in the evening is an ideal time because this is during off-peak travel hours. Flights to Bulgaria are more costly at noon, with an average ticket price of $1,099. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $856 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Seattle for as low as $701 on momondo.

Cheap Seattle to Bulgaria flight deals and tips

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

Direct flights

None
There are no direct flights from Seattle to Bulgaria. There are no popular flight routes from Seattle to Bulgaria.
Search flight deals

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The travel and health documents required for your trip to Bulgaria can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bulgaria. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Seattle to Bulgaria

Compare and see reviews for airlines that fly from Seattle to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom $555Free CancellationRating
7.4
1,484 reviews
Search Air France flights
LufthansaPriceFrom $562Free CancellationRating
6.8
7,558 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $596Free CancellationRating
7.3
4,032 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $676Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
KLMPriceFrom $719Free CancellationRating
7.7
1,405 reviews
Search KLM flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Bulgaria for you.

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

All flight searches from Seattle to Bulgaria on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Seattle to Bulgaria flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Bulgaria right now. Can momondo alert me if prices change?

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

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