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$451+ Cheap flights from Seattle (SEA) to Slovenia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LJU
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find flight deals from Seattle to Slovenia

Cheapest flights from Seattle to Slovenia
Explore the most affordable flight options available from Seattle to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This oojo deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:00 pmSEA - LJU
1 stop28h 25mTurkish Airlines
Sat 12/67:35 pmLJU - SEA
1 stop30h 30mTurkish Airlines
Deal found 11/24$1,137
This Gotogate deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:10 amSEA - LJU
2 stops19h 30mMultiple Airlines
Sat 12/69:20 amLJU - SEA
1 stop16h 45mMultiple Airlines
Deal found 11/24$1,173
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:05 amSEA - LJU
2 stops24h 25mLufthansa
Fri 12/196:55 amLJU - SEA
1 stop14h 15mLufthansa
Deal found 11/25$1,586
This Flightnetwork deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:50 amSEA - LJU
2 stops28h 40mMultiple Airlines
Fri 12/196:55 amLJU - SEA
2 stops48h 52mMultiple Airlines
Deal found 11/25$1,651

Cheap flight deals from Seattle to Slovenia

Keep the following information in mind while searching for Seattle to Slovenia flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$495
(Kiwi.com)

One-way from

$451
(Cheapflightsfares)

Popular in

June

Cheapest in

November

Average price

$630
Provider with most accurate pricing for Seattle/Tacoma Intl-Ljubljana Joze Pucnik flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Ljubljana Joze Pucnik flights.
Search Deals
From Seattle/Tacoma Intl to Slovenia
Search Deals
One-way flight from Seattle/Tacoma Intl to Slovenia
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($301 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Slovenia 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, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Seattle to Slovenia that are best for you.

Fly from

Seattle

Fly to

Slovenia

Route

Depart

Return

Price

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 1/9

7:00 am-9:50 pm

2 stops29h 50m

Ljubljana Joze Pucnik

Fri 1/16

9:45 am-1:20 pm

1 stop12h 35m

$495

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 2/9

8:10 am-12:40 pm

2 stops19h 30m

Ljubljana Joze Pucnik

Sun 2/15

6:35 am-7:16 pm

2 stops21h 41m

$526

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 1/30

3:10 pm-1:10 pm

1 stop13h 00m

Ljubljana Joze Pucnik

Tue 2/3

12:50 pm-11:40 am

1 stop31h 50m

$544

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Sat 1/10

12:35 pm-2:20 pm

2 stops40h 45m

Ljubljana Joze Pucnik

Sat 1/17

6:55 am-12:10 pm

1 stop14h 15m

$544

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Thu 1/8

12:35 pm-2:00 pm

2 stops40h 25m

Ljubljana Joze Pucnik

Thu 1/15

6:35 am-12:10 pm

1 stop14h 35m

$544

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 5/15

8:20 pm-7:20 pm

1 stop14h 00m

$451

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 5/15

1:33 pm-7:20 pm

2 stops20h 47m

$478

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 12/29

7:00 am-9:55 am

2 stops17h 55m

$549

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 12/29

7:00 pm-8:25 am

1 stop28h 25m

$568

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 5/22

1:35 pm-7:20 pm

1 stop20h 45m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Best time to book a flight from Seattle to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Slovenia

What is the cheapest month to book a flight from Seattle to Slovenia?

Currently, December is the cheapest month in which you can book a flight from Seattle to Slovenia (average of $540). Flying from Seattle to Slovenia in June is currently the most expensive (average of $952). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to SI?

Find hourly flight availability from Seattle to Slovenia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 38% on flights from Seattle to Slovenia by exploring options for tickets in the evening.

Reviews of airlines servicing Slovenia

Get insights into the airlines that provide service to Slovenia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Slovenia. Reviews last updated November 26, 2025.
Read through reviews of airlines operating flights from Seattle to Slovenia, such as Delta, KLM, and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,003 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,423 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air France
7.4
Good
1,498 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Turkish Airlines
7.3
Good
4,063 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,594 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Slovenia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Slovenia?

    If you book a flight to Slovenia from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • How long is the flight from Seattle to Slovenia?

    There are many flights that can get you from Seattle to Slovenia in 13h. Fly via Lufthansa or Delta to get the fastest option. The distance from Seattle to Slovenia is about 5454 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Seattle to Slovenia that include hotel bookings?

    Yes. In addition to deals on Seattle to Slovenia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Slovenia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Slovenia.

  • Can I find deals for business class flights from Seattle to Slovenia?

    Yes. Cheapflights offers flight deals from Seattle to Slovenia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Slovenia?

    Currently, December is the cheapest month in which you can book a flight from Seattle to Slovenia (average of $540). Flying from Seattle to Slovenia in June is currently the most expensive (average of $952). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from Seattle to Slovenia

Discover the top 5 airlines that operate flights from Seattle to Slovenia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$543Average$965FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$647Average$771FlexibilityNo cancel feeOn-time77%
DeltaCheapest$765Average$873FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$825Average$983FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$831Average$873FlexibilityNo cancel feeOn-time77%

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