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Cheap flights from Seattle to Southeast Europe from $299

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 Southeast Europe departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Southeast Europe

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
2:00 pm - 1:45 pmSEA-SOF
13h 45m1 stop
Lufthansa Logo
6:00 am - 12:10 pmSOF-SEA
16h 10m1 stop
$508Lufthansa
Find Deal
Tue, Nov 11 - Tue, Nov 18
Lufthansa Logo
3:00 pm - 1:55 pmSEA-OTP
13h 55m1 stop
Lufthansa Logo
6:05 am - 1:20 pmOTP-SEA
17h 15m1 stop
$509Lufthansa
Find Deal
Tue, Oct 28 - Wed, Nov 5
British Airways Logo
6:50 pm - 8:10 pmSEA-SOF
15h 20m1 stop
British Airways Logo
5:25 pm - 11:30 amSOF-SEA
28h 05m1 stop
$538British Airways
Find Deal
Tue, Nov 11 - Mon, Nov 17
Delta Logo
1:40 pm - 12:05 pmSEA-OTP
36h 25m1 stop
Delta Logo
1:55 pm - 11:45 amOTP-SEA
31h 50m1 stop
$540Delta
Find Deal
Tue, Nov 4 - Tue, Nov 18
Delta Logo
5:25 am - 10:50 pmSEA-OTP
32h 25m2 stops
Delta Logo
1:55 pm - 11:45 amOTP-SEA
31h 50m1 stop
$543Delta
Find Deal
Sun, Oct 26 - Tue, Nov 4
British Airways Logo
9:00 am - 3:45 pmSEA-OTP
20h 45m2 stops
British Airways Logo
8:05 am - 4:55 pmOTP-SEA
18h 50m1 stop
$547British Airways
Find Deal
Wed, Dec 10 - Wed, Jan 14
United Airlines Logo
11:30 pm - 1:25 pmSEA-SOF
27h 55m2 stops
United Airlines Logo
6:00 am - 12:10 pmSOF-SEA
16h 10m1 stop
$549United Airlines
Find Deal
Sun, Nov 9 - Thu, Nov 20
United Airlines Logo
9:25 am - 6:35 pmSEA-OTP
24h 10m2 stops
United Airlines Logo
6:05 am - 6:52 pmOTP-SEA
22h 47m2 stops
$551United Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 5
Turkish Airlines Logo
7:10 pm - 8:35 amSEA-SOF
27h 25m1 stop
Turkish Airlines Logo
9:40 pm - 6:05 pmSOF-SEA
29h 25m1 stop
$591Turkish Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 31
Turkish Airlines Logo
8:00 pm - 8:45 amSEA-SOF
27h 45m1 stop
Turkish Airlines Logo
3:50 pm - 5:15 pmSOF-SEA
35h 25m1 stop
$609Turkish Airlines
Find Deal
Mon, Mar 9 - Mon, Apr 27

Delta flights from Seattle to Southeast Europe

Our best Delta deals on Seattle to Southeast Europe flight tickets
Delta
Nov 4
SEA1:40 pmSeattle/Tacoma Intl
36h 25m
1 stop
OTP12:05 pmBucharest Otopeni Intl
Nov 18
OTP1:55 pmBucharest Otopeni Intl
31h 50m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$540
Find similar
Delta
Oct 26
SEA5:25 amSeattle/Tacoma Intl
32h 25m
2 stops
OTP10:50 pmBucharest Otopeni Intl
Nov 4
OTP1:55 pmBucharest Otopeni Intl
31h 50m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$543
Find similar
Delta
Nov 3
SEA2:05 pmSeattle/Tacoma Intl
22h 45m
1 stop
OTP10:50 pmBucharest Otopeni Intl
Nov 13
OTP1:55 pmBucharest Otopeni Intl
30h 31m
2 stops
SEA10:26 amSeattle/Tacoma Intl
$548
Find similar

Lufthansa flights from Seattle to Southeast Europe

Our best Lufthansa deals on Seattle to Southeast Europe flight tickets
Lufthansa
Nov 11
SEA2:00 pmSeattle/Tacoma Intl
13h 45m
1 stop
SOF1:45 pmSofia
Nov 18
SOF6:00 amSofia
16h 10m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$508
Find similar
Lufthansa
Oct 28
SEA3:00 pmSeattle/Tacoma Intl
13h 55m
1 stop
OTP1:55 pmBucharest Otopeni Intl
Nov 5
OTP6:05 amBucharest Otopeni Intl
17h 15m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$509
Find similar
Lufthansa
Oct 26
SEA4:10 pmSeattle/Tacoma Intl
17h 25m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Nov 6
OTP5:50 amBucharest Otopeni Intl
16h 20m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$513
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Southeast Europe 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 1, 2025.
Use the filters below to find and compare flights from Seattle to Southeast Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 11/11

2:00 pm-1:45 pm

1 stop13h 45m

Sofia

Tue 11/18

6:00 am-12:10 pm

1 stop16h 10m

$508

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

3:00 pm-1:55 pm

1 stop13h 55m

Bucharest Otopeni Intl

Wed 11/5

6:05 am-1:20 pm

1 stop17h 15m

$509

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Tue 11/11

6:50 pm-8:10 pm

1 stop15h 20m

Sofia

Mon 11/17

5:25 pm-11:30 am

1 stop28h 05m

$538

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 11/4

1:40 pm-12:05 pm

1 stop36h 25m

Bucharest Otopeni Intl

Tue 11/18

1:55 pm-11:45 am

1 stop31h 50m

$540

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 10/26

5:25 am-10:50 pm

2 stops32h 25m

Bucharest Otopeni Intl

Tue 11/4

1:55 pm-11:45 am

1 stop31h 50m

$543

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/10

9:00 am-3:45 pm

2 stops20h 45m

Bucharest Otopeni Intl

Wed 1/14

8:05 am-4:55 pm

1 stop18h 50m

$547

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 11/9

11:30 pm-1:25 pm

2 stops27h 55m

Sofia

Thu 11/20

6:00 am-12:10 pm

1 stop16h 10m

$549

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 10/27

9:25 am-6:35 pm

2 stops24h 10m

Bucharest Otopeni Intl

Wed 11/5

6:05 am-6:52 pm

2 stops22h 47m

$551

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sat 10/18

7:10 pm-8:35 am

1 stop27h 25m

Sofia

Fri 10/31

9:40 pm-6:05 pm

1 stop29h 25m

$591

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 3/9

8:00 pm-8:45 am

1 stop27h 45m

Sofia

Mon 4/27

3:50 pm-5:15 pm

1 stop35h 25m

$609

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 Southeast Europe from

How to get the cheapest flight ticket from Seattle to Southeast Europe

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 Southeast Europe?

The month of February is, on average, the cheapest month to fly to Southeast Europe from Seattle, with most prices found around $704. If you aren’t able to travel during the month of February, then book flights to Southeast Europe from Seattle during January instead. Flights to Southeast Europe in January, while not as cheap as those in February, still average around $709.

What is the cheapest day to depart on your flight to Southeast Europe?

On average, the least expensive day to fly to Southeast Europe from Seattle is on a Monday. momondo users have found tickets for Monday departures for as low as $889. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Southeast Europe for around $1,098.

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

Our most recent data shows that the best time of day to fly to Southeast Europe is in the evening. Flights from Seattle to Southeast Europe during this time can be as low as $769. In contrast, the most expensive time of day to depart to Southeast Europe is at noon when prices are around $1,174.

How far in advance should I book a flight to Southeast Europe?

You are more likely to see cheaper flights to Southeast Europe from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Europe for around $919 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Europe from Seattle for as low as $760 on momondo.

Can stopping save me money on Seattle to Southeast Europe flights?

You could potentially save up to 4% on your flight if you consider stops on a Seattle to Southeast Europe flight.

Cheap Seattle to Southeast Europe flight deals and tips

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

Direct flights

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

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

    Prices for flights from Seattle/Tacoma Intl Airport to Southeast Europe refresh daily.

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

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

    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 Southeast Europe.

  • What documentation or ID do you need to fly to Southeast Europe?

    The travel and health documents you'll need for your trip to Southeast Europe may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southeast Europe. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Southeast Europe?

Best airlines flying from Seattle to Southeast Europe

Compare and see reviews for airlines that fly from Seattle to Southeast Europe with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $388Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $513Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Scandinavian AirlinesPriceFrom $518Free CancellationRating
7.4
1,510 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $521Free CancellationRating
6.7
7,413 reviews
Search British Airways flights
Air FrancePriceFrom $533Free CancellationRating
7.4
1,468 reviews
Search Air France flights
KLMPriceFrom $548Free CancellationRating
7.8
1,389 reviews
Search KLM flights
United AirlinesPriceFrom $562Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
DeltaPriceFrom $569Free CancellationRating
7.9
7,961 reviews
Search Delta flights
LufthansaPriceFrom $585Free CancellationRating
6.8
7,443 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $594Free CancellationRating
7.3
3,984 reviews
Search Turkish Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Southeast Europe from Seattle.

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

Yes. momondo allows you to filter the results for Seattle to Southeast Europe flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Southeast Europe?

momondo provides multiple filters to help you find the best flight to Southeast Europe from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Seattle to Southeast Europe flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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