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Slovenia

$520+ Cheap flights from Washington to Slovenia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LJU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Washington to Slovenia

Best flights from Washington to Slovenia
Discover carefully curated flight deals from Washington to Slovenia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Sat 1/312:00 pmSEA - LJU
1 stop22h 55mMultiple Airlines
Sat 2/76:30 amLJU - SEA
2 stops23h 42mMultiple Airlines
Deal found 12/17$520
This KLM deal was found by Cheapflights users on 12/17. 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.
Sat 1/313:10 pmSEA - LJU
1 stop13h 00mKLM
Sat 2/71:40 pmLJU - SEA
1 stop31h 00mKLM
Deal found 12/17$546
This Air France deal was found by Cheapflights users on 12/16. 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 1/303:10 pmSEA - LJU
1 stop13h 00mAir France
Fri 2/612:50 pmLJU - SEA
1 stop31h 50mAir France
Deal found 12/16$546
This Turkish Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 1/87:00 pmSEA - LJU
1 stop28h 25mTurkish Airlines
Mon 1/129:20 amLJU - SEA
1 stop16h 45mTurkish Airlines
Deal found 12/16$1,074
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/303:10 pmSEA - LJU
2 stops21h 40mMultiple Airlines
Fri 2/69:45 amLJU - SEA
2 stops18h 31mMultiple Airlines
Deal found 12/16$549

Find flight deals from Washington to Slovenia

Keep the following information in mind while searching for Washington to Slovenia flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$520
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$764
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 Washington to Slovenia
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($251 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 December 18, 2025.
Use the filters below to find and compare flights from Washington to Slovenia that are best for you.

Fly from

Washington

Fly to

Slovenia

Route

Depart

Return

Price

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Sat 1/31

2:00 pm-9:55 pm

1 stop22h 55m

Ljubljana Joze Pucnik

Sat 2/7

6:30 am-9:12 pm

2 stops23h 42m

$520

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Sat 1/31

3:10 pm-1:10 pm

1 stop13h 00m

Ljubljana Joze Pucnik

Sat 2/7

1:40 pm-11:40 am

1 stop31h 00m

$546

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 1/30

3:10 pm-1:10 pm

1 stop13h 00m

Ljubljana Joze Pucnik

Fri 2/6

12:50 pm-11:40 am

1 stop31h 50m

$546

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Fri 1/30

3:10 pm-9:50 pm

2 stops21h 40m

Ljubljana Joze Pucnik

Fri 2/6

9:45 am-7:16 pm

2 stops18h 31m

$549

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Thu 1/8

7:00 pm-8:25 am

1 stop28h 25m

Ljubljana Joze Pucnik

Mon 1/12

9:20 am-5:05 pm

1 stop16h 45m

$1,074

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

6:10 am-12:20 pm

2 stops21h 10m

$551

SeattleLjubljana

SEA - LJU

SEALJU

Seattle/Tacoma Intl

Mon 12/29

7:00 pm-8:25 am

1 stop28h 25m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Best time to book a flight from Washington to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia from Washington 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 Washington to Slovenia

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

Find hourly flight availability from Washington 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 December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Slovenia in the evening. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight at noon.

Related info for your journey

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

  • How long is the flight from State of Washington to Slovenia?

    Departing from State of Washington to Slovenia will take you 13h. There are 5454 mi between State of Washington and Slovenia.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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.

See more FAQs

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Alternative routes for Washington to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Washington to Slovenia

Discover the top 5 airlines that operate flights from Washington 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$543Average$951FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$647Average$776FlexibilityNo 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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