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Cheap flights from Seattle to Bulgaria from $445

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bulgaria departing on 12/7. 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
10:05 am - 6:20 pmSEA-SOF
22h 15m2 stops
Lufthansa Logo
6:05 am - 1:20 pmSOF-SEA
17h 15m1 stop
$445Lufthansa
Find Deal
Sun, Dec 7 - Sun, Dec 14
Lufthansa Logo
3:10 pm - 6:20 pmSEA-SOF
17h 10m1 stop
Lufthansa Logo
6:05 am - 1:20 pmSOF-SEA
17h 15m1 stop
$454Lufthansa
Find Deal
Sun, Dec 7 - Sun, Dec 14
Lufthansa Logo
10:05 am - 10:45 pmSEA-SOF
26h 40m2 stops
Lufthansa Logo
6:10 am - 12:10 pmSOF-SEA
16h 00m1 stop
$455Lufthansa
Find Deal
Fri, Dec 5 - Fri, Dec 12
Multiple Airlines Logo
3:10 pm - 6:20 pmSEA-SOF
17h 10m1 stop
Multiple Airlines Logo
6:10 am - 10:16 pmSOF-SEA
26h 06m2 stops
$516Multiple Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
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
Sat, Nov 29 - Sun, Dec 14
Turkish Airlines Logo
10:55 am - 8:45 amSEA-SOF
35h 50m2 stops
Turkish Airlines Logo
4:00 pm - 6:58 pmSOF-SEA
36h 58m2 stops
$533Turkish Airlines
Find Deal
Wed, Feb 25 - Wed, Mar 4
Turkish Airlines Logo
11:00 am - 8:45 amSEA-SOF
36h 45m2 stops
Turkish Airlines Logo
9:35 am - 10:29 pmSOF-SEA
46h 54m2 stops
$538Turkish Airlines
Find Deal
Tue, Mar 24 - Tue, Apr 28
KLM Logo
9:30 am - 2:05 pmSEA-SOF
18h 35m2 stops
KLM Logo
7:00 am - 11:50 amSOF-SEA
14h 50m1 stop
$539KLM
Find Deal
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
7:00 am - 6:20 pmSEA-SOF
25h 20m2 stops
United Airlines Logo
6:05 am - 12:59 amSOF-SEA
28h 54m3 stops
$540United Airlines
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Wed, Nov 19 - Wed, Nov 26
United Airlines Logo
9:25 am - 10:45 pmSEA-SOF
27h 20m2 stops
United Airlines Logo
6:25 am - 11:15 pmSOF-SEA
26h 50m3 stops
$542United Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13

Lufthansa flights from Seattle to Bulgaria

Our best Lufthansa deals on Seattle to Bulgaria flight tickets
Lufthansa
Dec 7
SEA10:05 amSeattle/Tacoma Intl
22h 15m
2 stops
SOF6:20 pmSofia
Dec 14
SOF6:05 amSofia
17h 15m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$445
Find similar
Lufthansa
Dec 7
SEA3:10 pmSeattle/Tacoma Intl
17h 10m
1 stop
SOF6:20 pmSofia
Dec 14
SOF6:05 amSofia
17h 15m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$454
Find similar
Lufthansa
Dec 5
SEA10:05 amSeattle/Tacoma Intl
26h 40m
2 stops
SOF10:45 pmSofia
Dec 12
SOF6:10 amSofia
16h 00m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$455
Find similar

Air Canada flights from Seattle to Bulgaria

Our best Air Canada deals on Seattle to Bulgaria flight tickets
Air Canada
Jan 11
SEA10:05 amSeattle/Tacoma Intl
22h 15m
2 stops
SOF6:20 pmSofia
Jan 18
SOF6:10 amSofia
37h 21m
2 stops
SEA9:31 amSeattle/Tacoma Intl
$530
Find similar
Air Canada
Jan 11
SEA10:05 amSeattle/Tacoma Intl
22h 15m
2 stops
SOF6:20 pmSofia
Jan 17
SOF2:00 pmSofia
39h 16m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
$532
Find similar
Air Canada
Jan 11
SEA5:50 amSeattle/Tacoma Intl
26h 30m
2 stops
SOF6:20 pmSofia
Jan 20
SOF6:00 amSofia
26h 16m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
$535
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 October 24, 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

Sun 12/7

10:05 am-6:20 pm

2 stops22h 15m

Sofia

Sun 12/14

6:05 am-1:20 pm

1 stop17h 15m

$445

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 12/7

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Sun 12/14

6:05 am-1:20 pm

1 stop17h 15m

$454

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 12/5

10:05 am-10:45 pm

2 stops26h 40m

Sofia

Fri 12/12

6:10 am-12:10 pm

1 stop16h 00m

$455

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 11/19

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Wed 11/26

6:10 am-10:16 pm

2 stops26h 06m

$516

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sat 11/29

1:40 pm-1:55 pm

1 stop14h 15m

Sofia

Sun 12/14

7:00 am-11:50 am

1 stop14h 50m

$529

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 2/25

10:55 am-8:45 am

2 stops35h 50m

Sofia

Wed 3/4

4:00 pm-6:58 pm

2 stops36h 58m

$533

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 3/24

11:00 am-8:45 am

2 stops36h 45m

Sofia

Tue 4/28

9:35 am-10:29 pm

2 stops46h 54m

$538

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 1/15

9:30 am-2:05 pm

2 stops18h 35m

Sofia

Sun 1/18

7:00 am-11:50 am

1 stop14h 50m

$539

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 11/19

7:00 am-6:20 pm

2 stops25h 20m

Sofia

Wed 11/26

6:05 am-12:59 am

3 stops28h 54m

$540

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sat 12/6

9:25 am-10:45 pm

2 stops27h 20m

Sofia

Sat 12/13

6:25 am-11:15 pm

3 stops26h 50m

$542

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 $860 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
1,477 reviews
Search Air France flights
Turkish AirlinesPriceFrom $597Free CancellationRating
7.3
4,023 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $618Free CancellationRating
6.8
7,518 reviews
Search Lufthansa flights
United AirlinesPriceFrom $653Free CancellationRating
7.4
8,994 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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