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Cheap flights from Seattle to Bulgaria from $383

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 5/23. 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
2:10 pm - 10:45 pmSEA-SOF
22h 35m2 stops
Lufthansa Logo
6:00 am - 12:10 pmSOF-SEA
16h 10m1 stop
$454Lufthansa
Find Deal
Thu, Jan 8 - Thu, Jan 15
Lufthansa Logo
3:10 pm - 6:20 pmSEA-SOF
17h 10m1 stop
Lufthansa Logo
6:05 am - 1:20 pmSOF-SEA
17h 15m1 stop
$457Lufthansa
Find Deal
Fri, Jan 9 - Fri, Jan 16
Lufthansa Logo
3:10 pm - 6:20 pmSEA-SOF
17h 10m1 stop
Lufthansa Logo
6:10 am - 10:43 pmSOF-SEA
26h 33m2 stops
$459Lufthansa
Find Deal
Fri, Jan 9 - Fri, Jan 16
Lufthansa Logo
2:10 pm - 10:45 pmSEA-SOF
22h 35m2 stops
Lufthansa Logo
6:10 am - 10:43 pmSOF-SEA
26h 33m2 stops
$464Lufthansa
Find Deal
Fri, Jan 9 - Fri, Jan 16
British Airways Logo
6:50 pm - 1:00 pmSEA-SOF
32h 10m1 stop
British Airways Logo
9:00 pm - 4:55 pmSOF-SEA
29h 55m1 stop
$513British Airways
Find Deal
Fri, Jan 9 - Wed, Jan 21
British Airways Logo
6:50 pm - 11:15 amSEA-SOF
30h 25m1 stop
British Airways Logo
5:25 pm - 11:30 amSOF-SEA
28h 05m1 stop
$516British Airways
Find Deal
Thu, Jan 22 - Mon, Jan 26
Turkish Airlines Logo
7:10 pm - 9:20 pmSEA-VAR
16h 10m1 stop
Turkish Airlines Logo
3:30 am - 5:15 pmVAR-SEA
23h 45m1 stop
$1,030Turkish Airlines
Find Deal
Fri, May 22 - Fri, Jun 5
Turkish Airlines Logo
7:10 pm - 9:20 pmSEA-VAR
16h 10m1 stop
Turkish Airlines Logo
10:10 pm - 5:15 pmVAR-SEA
29h 05m1 stop
$1,113Turkish Airlines
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Fri, May 22 - Sat, Jun 6
Multiple Airlines Logo
7:05 am - 8:30 amSEA-VAR
39h 25m3 stops
Multiple Airlines Logo
4:30 am - 8:45 pmVAR-SEA
26h 15m3 stops
$1,186Multiple Airlines
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Fri, May 22 - Sat, Jun 6
Multiple Airlines Logo
7:05 am - 8:30 amSEA-VAR
39h 25m3 stops
Multiple Airlines Logo
3:30 am - 8:28 pmVAR-SEA
26h 58m3 stops
$1,362Multiple Airlines
Find Deal
Fri, May 22 - Fri, Jun 5

Turkish Airlines flights from Seattle to Bulgaria

Our best Turkish Airlines deals on Seattle to Bulgaria flight tickets
Turkish Airlines
Apr 1
SEA7:10 pmSeattle/Tacoma Intl
33h 50m
1 stop
SOF3:00 pmSofia
Apr 8
SOF3:50 pmSofia
35h 25m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$593
Find similar
Turkish Airlines
Mar 1
SEA7:00 pmSeattle/Tacoma Intl
27h 45m
1 stop
SOF8:45 amSofia
Mar 13
SOF9:35 amSofia
17h 30m
1 stop
SEA6:05 pmSeattle/Tacoma Intl
$594
Find similar
Turkish Airlines
Apr 23
SEA7:10 pmSeattle/Tacoma Intl
27h 35m
1 stop
SOF8:45 amSofia
May 28
SOF3:50 pmSofia
35h 25m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$600
Find similar

British Airways flights from Seattle to Bulgaria

Our best British Airways deals on Seattle to Bulgaria flight tickets
British Airways
Jan 9
SEA6:50 pmSeattle/Tacoma Intl
32h 10m
1 stop
SOF1:00 pmSofia
Jan 21
SOF9:00 pmSofia
29h 55m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$513
Find similar
British Airways
Jan 22
SEA6:50 pmSeattle/Tacoma Intl
30h 25m
1 stop
SOF11:15 amSofia
Jan 26
SOF5:25 pmSofia
28h 05m
1 stop
SEA11:30 amSeattle/Tacoma Intl
$516
Find similar
British Airways
Jan 22
SEA6:50 pmSeattle/Tacoma Intl
30h 25m
1 stop
SOF11:15 amSofia
Jan 26
SOF5:25 pmSofia
28h 05m
1 stop
SEA11:30 amSeattle/Tacoma Intl
$531
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 26, 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

Thu 1/8

2:10 pm-10:45 pm

2 stops22h 35m

Sofia

Thu 1/15

6:00 am-12:10 pm

1 stop16h 10m

$454

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 1/9

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Fri 1/16

6:05 am-1:20 pm

1 stop17h 15m

$457

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 1/9

3:10 pm-6:20 pm

1 stop17h 10m

Sofia

Fri 1/16

6:10 am-10:43 pm

2 stops26h 33m

$459

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 1/9

2:10 pm-10:45 pm

2 stops22h 35m

Sofia

Fri 1/16

6:10 am-10:43 pm

2 stops26h 33m

$464

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Fri 1/9

6:50 pm-1:00 pm

1 stop32h 10m

Sofia

Wed 1/21

9:00 pm-4:55 pm

1 stop29h 55m

$513

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 1/22

6:50 pm-11:15 am

1 stop30h 25m

Sofia

Mon 1/26

5:25 pm-11:30 am

1 stop28h 05m

$516

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Fri 5/22

7:10 pm-9:20 pm

1 stop16h 10m

Varna

Fri 6/5

3:30 am-5:15 pm

1 stop23h 45m

$1,030

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Fri 5/22

7:10 pm-9:20 pm

1 stop16h 10m

Varna

Sat 6/6

10:10 pm-5:15 pm

1 stop29h 05m

$1,113

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Fri 5/22

7:05 am-8:30 am

3 stops39h 25m

Varna

Sat 6/6

4:30 am-8:45 pm

3 stops26h 15m

$1,186

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Fri 5/22

7:05 am-8:30 am

3 stops39h 25m

Varna

Fri 6/5

3:30 am-8:28 pm

3 stops26h 58m

$1,362

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 October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $602.

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 $813 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

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from Seattle to Bulgaria takes 14h 05m
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
KLMPriceFrom $538Free CancellationRating
7.7
1,422 reviews
Search KLM flights
LufthansaPriceFrom $541Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
Air FrancePriceFrom $555Free CancellationRating
7.4
1,497 reviews
Search Air France flights
Turkish AirlinesPriceFrom $587Free CancellationRating
7.3
4,059 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $621Free CancellationRating
7.4
9,046 reviews
Search United Airlines 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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