HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Slovenia

$551+ 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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LJU
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Slovenia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 August 14, 2025.

Round-trip from

$728
(Ovago)

One-way from

$551
(Lufthansa)

Popular in

June

Cheapest in

January

Average price

$887
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. 24% potential increase in price ($285 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 August 14, 2025.

This Ovago deal was found by Cheapflights users on 8/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:10 pmSEA - LJU
1 stop28h 20mTurkish Airlines
Thu 9/259:25 amLJU - SEA
1 stop16h 50mTurkish Airlines
Deal found 8/14$728
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:10 pmSEA - LJU
1 stop28h 20mTurkish Airlines
Wed 9/248:10 pmLJU - SEA
1 stop30h 05mTurkish Airlines
Deal found 8/14$731
This oojo deal was found by Cheapflights users on 8/14. 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 10/137:10 pmSEA - LJU
1 stop33h 00mTurkish Airlines
Mon 11/179:20 amLJU - SEA
1 stop16h 45mTurkish Airlines
Deal found 8/14$736
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:10 pmSEA - LJU
1 stop15h 05mTurkish Airlines
Wed 9/242:05 pmLJU - SEA
1 stop29h 30mTurkish Airlines
Deal found 8/13$739
This Turkish Airlines deal was found by Cheapflights users on 8/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:10 pmSEA - LJU
1 stop28h 20mTurkish Airlines
Fri 9/269:25 amLJU - SEA
1 stop34h 10mTurkish Airlines
Deal found 8/14$770
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:10 amSEA - LJU
2 stops19h 50mDelta
Mon 11/1712:25 pmLJU - SEA
1 stop32h 00mDelta
Deal found 8/14$785
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:10 pmSEA - LJU
1 stop28h 20mTurkish Airlines
Tue 9/239:25 amLJU - SEA
1 stop16h 50mTurkish Airlines
Deal found 8/13$798
This British Airways deal was found by Cheapflights users on 8/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:30 pmSEA - LJU
1 stop21h 50mBritish Airways
Tue 9/235:00 pmLJU - SEA
1 stop27h 35mBritish Airways
Deal found 8/14$804

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 August 14, 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

Tue 9/9

7:10 pm-7:15 pm

1 stop15h 05m

Ljubljana Joze Pucnik

Thu 9/25

9:25 am-5:15 pm

1 stop16h 50m

$728

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Tue 9/9

7:10 pm-7:15 pm

1 stop15h 05m

Ljubljana Joze Pucnik

Wed 9/24

8:10 pm-5:15 pm

1 stop30h 05m

$728

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Thu 9/11

12:30 pm-7:15 pm

1 stop21h 45m

Ljubljana Joze Pucnik

Thu 9/25

9:25 am-5:15 pm

1 stop16h 50m

$728

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Wed 9/10

7:10 pm-8:30 am

1 stop28h 20m

Ljubljana Joze Pucnik

Thu 9/25

9:25 am-5:15 pm

1 stop16h 50m

$728

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Wed 9/10

7:10 pm-7:15 pm

1 stop15h 05m

Ljubljana Joze Pucnik

Wed 9/24

8:10 pm-10:35 am

1 stop23h 25m

$728

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Thu 9/11

7:10 pm-7:15 pm

1 stop15h 05m

Ljubljana Joze Pucnik

Wed 9/24

8:10 pm-10:35 am

1 stop23h 25m

$728

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 10/13

7:10 pm-1:10 pm

1 stop33h 00m

Ljubljana Joze Pucnik

Mon 11/17

9:20 am-5:05 pm

1 stop16h 45m

$736

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 12/29

7:00 am-9:55 am

2 stops17h 55m

$551

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 12/29

6:15 am-9:25 am

2 stops18h 10m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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, February is the cheapest month in which you can book a flight from Seattle to Slovenia (average of $710). Flying from Seattle to Slovenia in June is currently the most expensive (average of $1,444). 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 August 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Slovenia as you normally would.

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 August 14, 2025.
Read through reviews of airlines operating flights from Seattle to Slovenia, such as Delta, KLM, and Turkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,381 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,940 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,317 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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, February is the cheapest month in which you can book a flight from Seattle to Slovenia (average of $710). Flying from Seattle to Slovenia in June is currently the most expensive (average of $1,444). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Heathrow flights
Seattle to Charles de Gaulle flights
Seattle to Istanbul flights
Seattle to Gatwick flights
Seattle to Lisbon flights
Seattle to Dublin flights
Seattle to London City flights
Seattle to Leonardo da Vinci/Fiumicino flights
Seattle to Athens flights
Seattle to Amsterdam flights
Seattle to Keflavik Intl flights
Seattle to Frankfurt flights
Seattle to Barcelona-El Prat flights
Portland to Heathrow flights
Seattle to Orly flights
Seattle to Sabiha Gokcen flights
Seattle to Luton flights
Seattle to Malpensa flights
Seattle to Madrid flights
Seattle to Stansted flights
Seattle to Copenhagen flights
Seattle to Prague flights
Seattle to Edinburgh flights
Portland to Madrid flights
Seattle to Linate flights
Portland to Gatwick flights
Seattle to Ljubljana flights
Seattle to Munich flights
Seattle to Vicenza flights
Seattle to Berlin flights
Seattle to Oslo Gardermoen flights
Seattle to Zurich flights
Portland to Dublin flights
Portland to Leonardo da Vinci/Fiumicino flights
Portland to Charles de Gaulle flights
Seattle to Porto flights
Portland to London City flights
Seattle to Frederic Chopin flights
Portland to Amsterdam flights
Seattle to Naples flights
Portland to Lisbon flights
Seattle to Málaga flights
Portland to Athens flights
Seattle to Arlanda flights
Seattle to Florence flights
Portland to Munich flights
Portland to Barcelona-El Prat flights
Portland to Keflavik Intl flights
Portland to Vicenza flights
Seattle to Beauvais-Tille flights

Top 4 airlines flying from Seattle to Slovenia

Discover the top 4 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$647Average$769FlexibilityNo cancel feeOn-time77%
DeltaCheapest$719Average$863FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$739Average$998FlexibilityNo cancel feeOn-time76%
KLMCheapest$825Average$983FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.