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Cheap flights from Seattle to Bulgaria from $336

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 11/5. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
7:15 pm - 3:00 pmSEA  Seattle/Tacoma Intl-SOF Sofia
33h 45m1 stop Istanbul
Turkish Airlines Logo
3:50 pm - 5:20 pmSOF  Sofia-SEA Seattle/Tacoma Intl
35h 30m1 stop Istanbul
$740Turkish Airlines
Thu, Oct 8 - Tue, Oct 20
Turkish Airlines Logo
7:15 pm - 8:20 pmSEA  Seattle/Tacoma Intl-SOF Sofia
15h 05m1 stop Istanbul
Turkish Airlines Logo
9:35 am - 5:20 pmSOF  Sofia-SEA Seattle/Tacoma Intl
17h 45m1 stop Istanbul
$740Turkish Airlines
Sun, Sep 20 - Tue, Oct 6
Multiple Airlines Logo
3:15 pm - 1:25 pmSEA  Seattle/Tacoma Intl-SOF Sofia
36h 10m2 stops Vancouver Intl Frankfurt am Main
Multiple Airlines Logo
6:00 am - 1:00 pmSOF  Sofia-SEA Seattle/Tacoma Intl
17h 00m1 stop Munich Franz Josef Strauss
$755Multiple Airlines
Sat, Nov 21 - Fri, Nov 27
Air Canada Logo
3:15 pm - 6:20 pmSEA  Seattle/Tacoma Intl-SOF Sofia
41h 05m2 stops Vancouver Intl Munich Franz Josef Strauss
Air Canada Logo
6:25 am - 6:22 pmSOF  Sofia-SEA Seattle/Tacoma Intl
21h 57m2 stops Frankfurt am Main Vancouver Intl
$764Air Canada
Sat, Nov 21 - Fri, Nov 27
Turkish Airlines Logo
7:15 pm - 8:20 pmSEA  Seattle/Tacoma Intl-SOF Sofia
15h 05m1 stop Istanbul
Turkish Airlines Logo
9:35 am - 5:20 pmSOF  Sofia-SEA Seattle/Tacoma Intl
17h 45m1 stop Istanbul
$765Turkish Airlines
Wed, Oct 14 - Fri, Oct 23
Multiple Airlines Logo
5:40 am - 6:40 pmSEA  Seattle/Tacoma Intl-SOF Sofia
27h 00m2 stops Vancouver Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:20 am - 12:20 pmSOF  Sofia-SEA Seattle/Tacoma Intl
16h 00m1 stop Frankfurt am Main
$800Multiple Airlines
Wed, Oct 14 - Fri, Oct 23
Lufthansa Logo
6:50 pm - 6:40 pmSEA  Seattle/Tacoma Intl-SOF Sofia
13h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:25 pm - 4:59 pmSOF  Sofia-SEA Seattle/Tacoma Intl
31h 34m1 stop Munich Franz Josef Strauss
$808Lufthansa
Sun, Sep 13 - Mon, Sep 21
Lufthansa Logo
6:50 pm - 6:40 pmSEA  Seattle/Tacoma Intl-SOF Sofia
13h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:20 am - 12:20 pmSOF  Sofia-SEA Seattle/Tacoma Intl
16h 00m1 stop Frankfurt am Main
$814Lufthansa
Wed, Sep 16 - Wed, Oct 7
United Airlines Logo
6:50 pm - 6:40 pmSEA  Seattle/Tacoma Intl-SOF Sofia
13h 50m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:20 am - 12:20 pmSOF  Sofia-SEA Seattle/Tacoma Intl
16h 00m1 stop Frankfurt am Main
$825United Airlines
Sun, Oct 11 - Fri, Oct 23
United Airlines Logo
6:50 pm - 6:40 pmSEA  Seattle/Tacoma Intl-SOF Sofia
13h 50m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:30 am - 12:20 pmSOF  Sofia-SEA Seattle/Tacoma Intl
15h 50m1 stop Frankfurt am Main
$825United Airlines
Sun, Oct 11 - Thu, Oct 22

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Turkish Airlines flights from Seattle to Bulgaria

Our best Turkish Airlines deals on Seattle to Bulgaria flight tickets
Turkish Airlines
Oct 8
SEA7:15 pmSeattle/Tacoma Intl
33h 45m
1 stop
SOF3:00 pmSofia
Oct 20
SOF3:50 pmSofia
35h 30m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$740
Turkish Airlines
Oct 14
SEA7:15 pmSeattle/Tacoma Intl
15h 05m
1 stop
SOF8:20 pmSofia
Oct 23
SOF9:35 amSofia
17h 45m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$765
Turkish Airlines
Oct 8
SEA7:15 pmSeattle/Tacoma Intl
33h 45m
1 stop
SOF3:00 pmSofia
Oct 19
SOF3:50 pmSofia
35h 30m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$780

Air Canada flights from Seattle to Bulgaria

Our best Air Canada deals on Seattle to Bulgaria flight tickets
Air Canada
Nov 21
SEA3:15 pmSeattle/Tacoma Intl
41h 05m
2 stops
SOF6:20 pmSofia
Nov 27
SOF6:25 amSofia
21h 57m
2 stops
SEA6:22 pmSeattle/Tacoma Intl
$764
Air Canada
Oct 13
SEA10:30 amSeattle/Tacoma Intl
22h 10m
2 stops
SOF6:40 pmSofia
Oct 23
SOF6:20 amSofia
18h 02m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$825
Air Canada
Oct 12
SEA8:00 amSeattle/Tacoma Intl
18h 10m
2 stops
SOF12:10 pmSofia
Oct 21
SOF6:20 amSofia
26h 22m
2 stops
SEA10:42 pmSeattle/Tacoma Intl
$833

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 August 10, 2026.
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

Cheapest round-trip

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Thu 10/8

7:15 pm-3:00 pm

1 stop33h 45m

Sofia

Tue 10/20

3:50 pm-5:20 pm

1 stop35h 30m

$740

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 9/20

7:15 pm-8:20 pm

1 stop15h 05m

Sofia

Tue 10/6

9:35 am-5:20 pm

1 stop17h 45m

$740

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sat 11/21

3:15 pm-1:25 pm

2 stops36h 10m

Sofia

Fri 11/27

6:00 am-1:00 pm

1 stop17h 00m

$755

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sat 11/21

3:15 pm-6:20 pm

2 stops41h 05m

Sofia

Fri 11/27

6:25 am-6:22 pm

2 stops21h 57m

$764

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 10/14

7:15 pm-8:20 pm

1 stop15h 05m

Sofia

Fri 10/23

9:35 am-5:20 pm

1 stop17h 45m

$765

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 10/14

5:40 am-6:40 pm

2 stops27h 00m

Sofia

Fri 10/23

6:20 am-12:20 pm

1 stop16h 00m

$800

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 9/13

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Mon 9/21

7:25 pm-4:59 pm

1 stop31h 34m

$808

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Wed 9/16

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Wed 10/7

6:20 am-12:20 pm

1 stop16h 00m

$814

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 10/11

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Fri 10/23

6:20 am-12:20 pm

1 stop16h 00m

$825
Quickest round-trip

SeattleSofia

SEA Seattle/Tacoma Intl - SOF Sofia

SEASOF

Seattle/Tacoma Intl

Sun 10/11

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Thu 10/22

6:30 am-12:20 pm

1 stop15h 50m

$825

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 $615.

How far in advance should I book a flight from Seattle 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 $755 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 $673 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

13h 50m

Direct flights

None
The fastest flight from Seattle to Bulgaria takes 13h 50m
There are no direct flights from Seattle to Bulgaria. There are no popular flight routes from Seattle to Bulgaria.
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Frequently asked questions about flying from Seattle to Bulgaria

  • 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
7.8
1,555 reviews
Search KLM flights
LufthansaPriceFrom $540Free CancellationRating
6.8
8,176 reviews
Search Lufthansa flights
United AirlinesPriceFrom $545Free CancellationRating
7.4
10,102 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $570Free CancellationRating
7.4
4,480 reviews
Search Turkish Airlines flights
Austrian AirlinesPriceFrom $884Free CancellationRating
7.6
949 reviews
Search Austrian 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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