Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Bulgaria from $320

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 5/24. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
7:10 pm - 8:15 pm
SEA
-
SOF
15h 05m
1 stop
Turkish Airlines Logo
9:35 am - 5:15 pm
SOF
-
SEA
17h 40m
1 stop
$598Turkish Airlines
Sun, Sep 6 - Tue, Sep 22
Turkish Airlines Logo
7:10 pm - 8:45 am
SEA
-
SOF
27h 35m
1 stop
Turkish Airlines Logo
3:50 pm - 5:15 pm
SOF
-
SEA
35h 25m
1 stop
$617Turkish Airlines
Tue, Sep 8 - Tue, Sep 22
Turkish Airlines Logo
7:10 pm - 8:15 pm
SEA
-
SOF
15h 05m
1 stop
Turkish Airlines Logo
3:50 pm - 5:15 pm
SOF
-
SEA
35h 25m
1 stop
$620Turkish Airlines
Sun, Sep 6 - Tue, Sep 22
Turkish Airlines Logo
7:10 pm - 3:00 pm
SEA
-
SOF
33h 50m
1 stop
Turkish Airlines Logo
3:50 pm - 5:15 pm
SOF
-
SEA
35h 25m
1 stop
$625Turkish Airlines
Sun, Sep 6 - Tue, Sep 22
Turkish Airlines Logo
7:10 pm - 3:00 pm
SEA
-
SOF
33h 50m
1 stop
Turkish Airlines Logo
9:05 pm - 5:15 pm
SOF
-
SEA
30h 10m
1 stop
$635Turkish Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
6:50 pm - 8:45 pm
SEA
-
VAR
15h 55m
1 stop
Multiple Airlines Logo
4:00 pm - 8:10 pm
VAR
-
SEA
38h 10m
2 stops
$854Multiple Airlines
Tue, Sep 22 - Tue, Oct 20
Austrian Airlines Logo
8:10 am - 12:20 pm
SEA
-
BOJ
18h 10m
2 stops
Austrian Airlines Logo
11:20 am - 6:59 pm
BOJ
-
SEA
41h 39m
2 stops
$984Austrian Airlines
Sat, Sep 5 - Sat, Sep 19
Austrian Airlines Logo
8:10 am - 12:20 pm
SEA
-
BOJ
18h 10m
2 stops
Austrian Airlines Logo
11:20 am - 6:59 pm
BOJ
-
SEA
41h 39m
2 stops
$1,034Austrian Airlines
Sat, Sep 5 - Sat, Sep 19
Lufthansa Logo
1:55 pm - 6:20 pm
SEA
-
BOJ
42h 25m
2 stops
Lufthansa Logo
7:05 pm - 11:55 am
BOJ
-
SEA
26h 50m
1 stop
$1,204Lufthansa
Sun, Aug 2 - Tue, Sep 15
Lufthansa Logo
1:00 pm - 6:20 pm
SEA
-
BOJ
43h 20m
2 stops
Lufthansa Logo
7:05 pm - 11:55 am
BOJ
-
SEA
26h 50m
1 stop
$1,205Lufthansa
Sun, Aug 2 - Tue, Sep 15

Turkish Airlines flights from Seattle to Bulgaria

Our best Turkish Airlines deals on Seattle to Bulgaria flight tickets
Turkish Airlines
Apr 23
SEA7:10 pmSeattle/Tacoma Intl
15h 05m
1 stop
SOF8:15 pmSofia
May 28
SOF9:35 amSofia
17h 40m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$591
Turkish Airlines
Apr 23
SEA7:10 pmSeattle/Tacoma Intl
15h 05m
1 stop
SOF8:15 pmSofia
May 28
SOF9:35 amSofia
17h 40m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$595
Turkish Airlines
Sep 6
SEA7:10 pmSeattle/Tacoma Intl
15h 05m
1 stop
SOF8:15 pmSofia
Sep 22
SOF9:35 amSofia
17h 40m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$598

United Airlines flights from Seattle to Bulgaria

Our best United Airlines deals on Seattle to Bulgaria flight tickets
United Airlines
Sep 6
SEA6:50 pmSeattle/Tacoma Intl
18h 25m
1 stop
SOF11:15 pmSofia
Sep 22
SOF6:10 amSofia
26h 32m
2 stops
SEA10:42 pmSeattle/Tacoma Intl
$765
United Airlines
Sep 6
SEA6:50 pmSeattle/Tacoma Intl
18h 25m
1 stop
SOF11:15 pmSofia
Sep 25
SOF6:20 amSofia
22h 12m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$766
United Airlines
Sep 8
SEA5:22 pmSeattle/Tacoma Intl
19h 53m
2 stops
SOF11:15 pmSofia
Sep 15
SOF6:10 amSofia
20h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$767

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 April 14, 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
Quickest round-trip

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 9/6

7:10 pm-8:15 pm

1 stop15h 05m

Sofia

Tue 9/22

9:35 am-5:15 pm

1 stop17h 40m

$598

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 9/8

7:10 pm-8:45 am

1 stop27h 35m

Sofia

Tue 9/22

3:50 pm-5:15 pm

1 stop35h 25m

$617

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 9/6

7:10 pm-8:15 pm

1 stop15h 05m

Sofia

Tue 9/22

3:50 pm-5:15 pm

1 stop35h 25m

$620

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 9/6

7:10 pm-3:00 pm

1 stop33h 50m

Sofia

Tue 9/22

3:50 pm-5:15 pm

1 stop35h 25m

$625

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 9/8

7:10 pm-3:00 pm

1 stop33h 50m

Sofia

Tue 9/15

9:05 pm-5:15 pm

1 stop30h 10m

$635

SeattleVarna

SEA - VAR

SEAVAR

Seattle/Tacoma Intl

Tue 9/22

6:50 pm-8:45 pm

1 stop15h 55m

Varna

Tue 10/20

4:00 pm-8:10 pm

2 stops38h 10m

$854

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

Sat 9/5

8:10 am-12:20 pm

2 stops18h 10m

Bourgas

Sat 9/19

11:20 am-6:59 pm

2 stops41h 39m

$984

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

Sat 9/5

8:10 am-12:20 pm

2 stops18h 10m

Bourgas

Sat 9/19

11:20 am-6:59 pm

2 stops41h 39m

$1,034

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

Sun 8/2

1:55 pm-6:20 pm

2 stops42h 25m

Bourgas

Tue 9/15

7:05 pm-11:55 am

1 stop26h 50m

$1,204

SeattleBurgas

SEA - BOJ

SEABOJ

Seattle/Tacoma Intl

Sun 8/2

1:00 pm-6:20 pm

2 stops43h 20m

Bourgas

Tue 9/15

7:05 pm-11:55 am

1 stop26h 50m

$1,205

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 April is also cheap. Prices for this month can be found on momondo for an average of $612.

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 $749 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 $677 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

15h 05m

Direct flights

None
The fastest flight from Seattle to Bulgaria takes 15h 05m
There are no direct flights from Seattle to Bulgaria. There are no popular flight routes from Seattle to Bulgaria.
Search flight deals

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
1,499 reviews
Search KLM flights
LufthansaPriceFrom $541Free CancellationRating
6.8
7,922 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $580Free CancellationRating
7.3
4,304 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $620Free CancellationRating
7.4
9,581 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $884Free CancellationRating
7.6
904 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.

An easier way to manage your Bulgaria trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 5/14
Thu 5/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bulgaria

Popular cities in Bulgaria

Popular flights according to clicks in the last 7 days on momondo
Flights to Sofiafrom $536
Flights to Varnafrom $597
Flights to Burgasfrom $792
Flights to Plovdivfrom $1,158