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$387+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LJU
Jun 18 — Jun 251
Wed 6/18
Wed 6/25
1 adult, Economy
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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 June 13, 2025.

Round-trip from

$686
(Delta)

Popular in

June

Cheapest in

January

Average price

$1,297
From Seattle/Tacoma Intl to Slovenia
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($287 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 13, 2025.

This Delta deal was found by Cheapflights users on 6/12. 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.
Tue 9/91:30 pmSEA - LJU
1 stop13h 05mDelta
Thu 9/2512:20 pmLJU - SEA
1 stop14h 20mDelta
Deal found 6/12$686
This KLM deal was found by Cheapflights users on 6/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:30 pmSEA - LJU
1 stop13h 05mKLM
Tue 9/2312:35 pmLJU - SEA
1 stop32h 10mKLM
Deal found 6/12$688
This British Airways deal was found by Cheapflights users on 6/11. 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.
Sat 8/308:20 pmSEA - LJU
1 stop15h 20mBritish Airways
Wed 9/176:00 pmLJU - SEA
1 stop26h 35mBritish Airways
Deal found 6/11$691
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Thu 9/117:10 pmSEA - LJU
1 stop15h 05mTurkish Airlines
Wed 9/249:25 amLJU - SEA
1 stop16h 50mTurkish Airlines
Deal found 6/12$717
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/44:25 pmSEA - LJU
1 stop32h 40mSWISS
Wed 8/2010:50 amLJU - SEA
2 stops21h 09mSWISS
Deal found 6/10$726
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Mon 10/132:20 pmSEA - LJU
1 stop14h 00mMultiple Airlines
Mon 11/173:10 pmLJU - SEA
2 stops40h 19mMultiple Airlines
Deal found 6/12$732
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Mon 10/132:20 pmSEA - LJU
1 stop14h 00mLufthansa
Mon 11/1710:20 amLJU - SEA
1 stop34h 50mLufthansa
Deal found 6/12$733
This Finnair deal was found by Cheapflights users on 6/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:20 pmSEA - LJU
2 stops51h 25mFinnair
Thu 9/49:30 amLJU - SEA
2 stops21h 28mFinnair
Deal found 6/11$791
This Air France deal was found by Cheapflights users on 6/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/41:30 pmSEA - LJU
1 stop22h 50mAir France
Thu 7/1712:20 pmLJU - SEA
1 stop14h 05mAir France
Deal found 6/10$969

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 June 13, 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

1:30 pm-11:35 am

1 stop13h 05m

Ljubljana Joze Pucnik

Thu 9/25

12:20 pm-5:40 pm

1 stop14h 20m

$686

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Tue 9/9

1:30 pm-11:35 am

1 stop13h 05m

Ljubljana Joze Pucnik

Tue 9/23

12:35 pm-11:45 am

1 stop32h 10m

$688

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Sat 8/30

8:20 pm-8:40 pm

1 stop15h 20m

Ljubljana Joze Pucnik

Wed 9/17

6:00 pm-11:35 am

1 stop26h 35m

$691

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

9:25 am-5:15 pm

1 stop16h 50m

$717

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 8/4

4:25 pm-10:05 am

1 stop32h 40m

Ljubljana Joze Pucnik

Wed 8/20

10:50 am-10:59 pm

2 stops21h 09m

$726

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 10/13

2:20 pm-1:20 pm

1 stop14h 00m

Ljubljana Joze Pucnik

Mon 11/17

3:10 pm-10:29 pm

2 stops40h 19m

$732

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 10/13

2:20 pm-1:20 pm

1 stop14h 00m

Ljubljana Joze Pucnik

Mon 11/17

10:20 am-12:10 pm

1 stop34h 50m

$733

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Sat 8/23

8:20 pm-8:45 am

2 stops51h 25m

Ljubljana Joze Pucnik

Thu 9/4

9:30 am-9:58 pm

2 stops21h 28m

$791

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 7/4

1:30 pm-9:20 pm

1 stop22h 50m

Ljubljana Joze Pucnik

Thu 7/17

12:20 pm-5:25 pm

1 stop14h 05m

$969

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Tue 7/8

11:30 pm-9:00 am

3 stops48h 30m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
1
2

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 $1,462). 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 June 13, 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.

Rainfall in Slovenia by month

Plan your trip to Slovenia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Slovenia ranges from 1.6 - 2.8 inches per month. October is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Slovenia when rainfall is around 1.6 in.

Temperature in Slovenia by month

Plan your trip to Slovenia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Slovenia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 13, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Seattle to Slovenia to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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 $1,462). 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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Alternative routes for Seattle to Slovenia

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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 June 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$647Average$797FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$748Average$1,134FlexibilityNo cancel feeOn-time76%
DeltaCheapest$765Average$1,169FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$780Average$947FlexibilityNo cancel feeOn-time75%

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