How long is the flight from Washington, D.C. to Slovenia?

Departing from Washington, D.C. to Slovenia will take you 10h 50m. The distance between Washington, D.C. and Slovenia is about 4429 mi. This flight may include one or multiple stops.

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.

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).

What are the most popular routes from Washington, D.C. to Slovenia?

While some choose either Washington, D.C. Reagan-National - Ljubljana Joze Pucnik or Baltimore/Washington - Ljubljana Joze Pucnik, Washington, D.C. Dulles Intl - Ljubljana Joze Pucnik is the most popular route from Washington, D.C. to Slovenia.

What are the most popular airlines that fly from Washington, D.C. to Slovenia?

Before booking your flight from Washington, D.C. to Slovenia check out the most popular airlines for this route: Lufthansa, Turkish Airlines or SWISS.

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

When flying from Washington, D.C. to Slovenia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Washington, D.C. to Slovenia that include hotel bookings?

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

How can I find direct flights from Washington, D.C. to Slovenia?

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

Can I find deals for business class flights from Washington, D.C. to Slovenia?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$410+ Cheap Flights from Washington, D.C. to Slovenia

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Cheap flight deals from Washington, D.C. to Slovenia

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$503 (Kiwi.com)
One-way from	$410 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$1,130

Provider with most accurate pricing for Washington, D.C. (WAS)-Ljubljana Joze Pucnik flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Ljubljana Joze Pucnik flights.

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From Washington, D.C. (WAS) to Slovenia

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One-way flight from Washington, D.C. (WAS) to Slovenia

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($202 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).

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Average for round-trip flights in October 2025

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Find flight deals from Washington, D.C. to Slovenia

Cheapest flights from Washington, D.C. to Slovenia
Explore the most affordable flight options available from Washington, D.C. to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Fri 12/58:30 pmIAD - LJU

1 stop11h 30mMultiple Airlines

Wed 12/106:35 amLJU - IAD

1 stop15h 15mMultiple Airlines

Deal found 10/30

$503

Fri 12/51:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Wed 12/109:20 amLJU - IAD

1 stop32h 25mTurkish Airlines

Deal found 10/30

$516

Fri 12/58:30 pmIAD - LJU

1 stop11h 30mSWISS

Fri 12/126:30 amLJU - IAD

1 stop16h 10mSWISS

Deal found 10/28

$524

Fri 12/51:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Sat 12/139:20 amLJU - IAD

1 stop32h 25mTurkish Airlines

Deal found 10/28

$535

Wed 12/36:50 pmIAD - LJU

1 stop10h 50mDelta

Sun 12/712:45 pmLJU - IAD

1 stop33h 20mDelta

Deal found 10/27

$538

Sat 12/66:50 pmIAD - LJU

1 stop10h 50mAir France

Fri 12/1212:50 pmLJU - IAD

1 stop33h 15mAir France

Deal found 10/28

$539

Sun 12/78:30 pmIAD - LJU

1 stop11h 50mSWISS

Sat 12/132:50 pmLJU - IAD

1 stop31h 50mSWISS

Deal found 10/30

$544

Fri 12/56:05 pmIAD - LJU

1 stop12h 15mAir France

Sun 12/1412:45 pmLJU - IAD

1 stop33h 20mAir France

Deal found 10/28

$545

Sat 12/612:19 pmIAD - LJU

2 stops17h 56mDelta

Sat 12/1312:50 pmLJU - IAD

1 stop33h 15mDelta

Deal found 10/28

$549

Wed 12/36:00 pmIAD - LJU

1 stop9h 55mLufthansa

Sun 12/76:35 amLJU - IAD

1 stop15h 15mLufthansa

Deal found 10/29

$550

Fri 12/511:13 amDCA - LJU

2 stops18h 27mDelta

Sun 12/1412:45 pmLJU - DCA

2 stops34h 20mDelta

Deal found 10/28

$553

Fri 12/51:52 pmBWI - LJU

2 stops15h 48mDelta

Wed 12/1012:50 pmLJU - BWI

2 stops17h 32mDelta

Deal found 10/30

$554

Best flights from Washington, D.C. to Slovenia
Discover carefully curated flight deals from Washington, D.C. to Slovenia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2025.

Fri 12/58:30 pmIAD - LJU

1 stop11h 30mMultiple Airlines

Thu 12/1110:30 amLJU - IAD

1 stop11h 20mMultiple Airlines

Deal found 10/30

$503

Fri 2/139:15 pmIAD - LJU

1 stop29h 10mTurkish Airlines

Mon 2/169:20 amLJU - IAD

1 stop16h 00mTurkish Airlines

Deal found 10/30

$516

Wed 12/36:50 pmIAD - LJU

1 stop10h 50mDelta

Sun 12/712:45 pmLJU - IAD

1 stop33h 20mDelta

Deal found 10/27

$538

Sat 12/66:50 pmIAD - LJU

1 stop10h 50mAir France

Fri 12/1212:50 pmLJU - IAD

1 stop33h 15mAir France

Deal found 10/28

$539

Thu 1/1512:30 pmIAD - LJU

2 stops17h 10mKLM

Mon 1/1912:50 pmLJU - IAD

1 stop33h 15mKLM

Deal found 10/28

$543

Fri 12/51:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Sat 12/139:20 amLJU - IAD

1 stop32h 25mTurkish Airlines

Deal found 10/28

$535

Sat 12/66:50 pmIAD - LJU

1 stop10h 50mAir France

Sat 12/1312:50 pmLJU - IAD

1 stop33h 15mAir France

Deal found 10/28

$539

Sat 12/612:19 pmIAD - LJU

2 stops17h 56mDelta

Sun 12/1412:45 pmLJU - IAD

1 stop33h 20mDelta

Deal found 10/28

$549

Sat 12/66:50 pmIAD - LJU

1 stop10h 50mAir France

Sun 12/1412:45 pmLJU - IAD

1 stop33h 20mAir France

Deal found 10/28

$539

Sat 12/612:19 pmIAD - LJU

2 stops17h 56mDelta

Sat 12/1312:50 pmLJU - IAD

1 stop33h 15mDelta

Deal found 10/28

$549

Wed 12/310:47 amBWI - LJU

2 stops18h 53mKLM

Sun 12/712:25 pmLJU - BWI

2 stops16h 38mKLM

Deal found 10/29

$611

Fri 12/56:05 pmIAD - LJU

1 stop12h 15mAir France

Sun 12/1412:45 pmLJU - IAD

1 stop33h 20mAir France

Deal found 10/28

$545

Fri 2/139:05 amDCA - LJU

2 stops18h 45mMultiple Airlines

Mon 2/166:50 amLJU - DCA

2 stops16h 43mMultiple Airlines

Deal found 10/30

$666

Fri 12/511:13 amDCA - LJU

2 stops18h 27mDelta

Sat 12/1312:50 pmLJU - DCA

2 stops16h 07mDelta

Deal found 10/28

$553

Sat 12/62:00 pmDCA - LJU

2 stops15h 40mDelta

Fri 12/1212:50 pmLJU - DCA

2 stops40h 09mDelta

Deal found 10/28

$553

Sat 12/62:00 pmDCA - LJU

2 stops15h 40mAir France

Sun 12/1412:45 pmLJU - DCA

2 stops16h 12mAir France

Deal found 10/28

$553

Fri 2/137:40 pmBWI - LJU

3 stops31h 25mMultiple Airlines

Mon 2/168:45 pmLJU - BWI

3 stops27h 55mMultiple Airlines

Deal found 10/30

$726

Fri 12/511:13 amDCA - LJU

2 stops18h 27mDelta

Fri 12/1212:50 pmLJU - DCA

2 stops26h 20mDelta

Deal found 10/28

$553

Sat 12/62:00 pmDCA - LJU

2 stops15h 40mAir France

Sat 12/1312:50 pmLJU - DCA

2 stops16h 07mAir France

Deal found 10/28

$553

Wed 12/36:07 amDCA - LJU

2 stops23h 33mDelta

Sun 12/712:45 pmLJU - DCA

2 stops25h 20mDelta

Deal found 10/27

$553

Fri 12/51:52 pmBWI - LJU

2 stops15h 48mAir France

Thu 12/1112:25 pmLJU - BWI

2 stops16h 38mAir France

Deal found 10/30

$559

Sun 12/77:40 pmBWI - LJU

3 stops31h 15mMultiple Airlines

Sat 12/135:10 pmLJU - BWI

3 stops31h 30mMultiple Airlines

Deal found 10/30

$784

Fri 12/51:52 pmBWI - LJU

2 stops15h 48mDelta

Wed 12/1012:50 pmLJU - BWI

2 stops17h 32mDelta

Deal found 10/30

$554

Fri 12/51:42 pmDCA - LJU

2 stops15h 58mDelta

Wed 12/1012:50 pmLJU - DCA

2 stops17h 08mDelta

Deal found 10/30

$554

Fri 12/57:40 pmBWI - LJU

3 stops31h 25mMultiple Airlines

Thu 12/118:45 pmLJU - BWI

3 stops27h 55mMultiple Airlines

Deal found 10/30

$871

Fri 12/51:42 pmDCA - LJU

2 stops15h 58mDelta

Thu 12/1112:50 pmLJU - DCA

2 stops16h 07mDelta

Deal found 10/30

$554

Wed 12/310:47 amBWI - LJU

2 stops18h 53mDelta

Sun 12/712:25 pmLJU - BWI

2 stops34h 26mDelta

Deal found 10/28

$564

Wed 4/2212:15 pmBWI - LJU

2 stops17h 20mAir France

Thu 4/3012:50 pmLJU - BWI

2 stops17h 25mAir France

Deal found 10/29

$755

Fri 12/57:40 pmBWI - LJU

3 stops18h 15mMultiple Airlines

Wed 12/108:45 pmLJU - BWI

3 stops27h 55mMultiple Airlines

Deal found 10/30

$1,027

Tue 4/2111:00 amBWI - LJU

2 stops18h 35mDelta

Tue 4/2812:50 pmLJU - BWI

2 stops17h 25mDelta

Deal found 10/30

$756

Last-minute flights from Washington, D.C. to Slovenia
Discover last-minute flight deals from Washington, D.C. to Slovenia. Data last updated October 30, 2025 and is based on user searches.

Fri 10/312:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Sat 11/159:20 amLJU - IAD

1 stop32h 25mTurkish Airlines

Deal found 10/28

$1,043

Fri 10/316:05 pmIAD - LJU

3 stops17h 25mMultiple Airlines

Sat 11/159:45 amLJU - IAD

3 stops35h 50mMultiple Airlines

Deal found 10/28

$1,251

Fri 10/318:40 pmBWI - LJU

2 stops14h 50mMultiple Airlines

Sat 11/156:55 amLJU - BWI

3 stops17h 45mMultiple Airlines

Deal found 10/28

$1,329

Fri 10/313:20 pmDCA - LJU

2 stops12h 45mMultiple Airlines

Sat 11/156:55 amLJU - DCA

2 stops20h 35mMultiple Airlines

Deal found 10/28

$1,722

Fri 10/315:00 pmBWI - LJU

2 stops14h 20mKLM

Sat 11/1512:50 pmLJU - BWI

2 stops26h 32mKLM

Deal found 10/28

$1,729

Fri 10/317:00 pmIAD - LJU

1 stop9h 50mLufthansa

Sat 11/156:55 amLJU - IAD

2 stops19h 10mLufthansa

Deal found 10/28

$1,873

Fri 11/286:50 pmDCA - LJU

2 stops15h 40mMultiple Airlines

Tue 12/95:10 pmLJU - DCA

2 stops45h 45mMultiple Airlines

Deal found 10/28

$4,204

Fri 11/289:15 pmIAD - LJU

1 stop29h 10mTurkish Airlines

Tue 12/99:20 amLJU - IAD

1 stop16h 00mTurkish Airlines

Deal found 10/28

$4,293

Fri 11/2810:15 pmIAD - LJU

2 stops18h 00mSWISS

Tue 12/96:30 amLJU - IAD

1 stop16h 10mSWISS

Deal found 10/28

$4,442

Fri 11/286:20 pmIAD - LJU

2 stops13h 40mMultiple Airlines

Tue 12/91:20 pmLJU - IAD

2 stops12h 55mMultiple Airlines

Deal found 10/28

$4,702

Sat 11/291:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Wed 12/107:35 pmLJU - IAD

1 stop29h 45mTurkish Airlines

Deal found 10/29

$4,259

Sat 11/295:45 pmIAD - LJU

1 stop13h 10mMultiple Airlines

Wed 12/106:35 amLJU - IAD

2 stops20h 19mMultiple Airlines

Deal found 10/29

$4,678

One-way flights from Washington, D.C. to Slovenia
Search for one-way flight options from Washington, D.C. to Slovenia. Find affordable one-way fares based on user searches. Data last updated October 30, 2025.

Thu 11/2712:40 pmDCA - LJU

3 stops39h 10mMultiple Airlines

Deal found 10/28

$410

Mon 11/246:46 pmIAD - LJU

3 stops43h 34mMultiple Airlines

Deal found 10/28

$411

Thu 11/278:30 pmIAD - LJU

1 stop11h 05mSWISS

Deal found 10/29

$456

Mon 11/249:15 pmIAD - LJU

1 stop15h 25mTurkish Airlines

Deal found 10/28

$527

Thu 11/279:15 pmIAD - LJU

1 stop15h 25mTurkish Airlines

Deal found 10/28

$613

Mon 11/245:43 pmDCA - LJU

2 stops16h 47mLOT

Deal found 10/28

$689

Thu 11/271:20 pmIAD - LJU

2 stops18h 15mMultiple Airlines

Deal found 10/28

$811

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Slovenia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Fri 12/5

8:30 pm-2:00 pm

1 stop11h 30m

Ljubljana Joze Pucnik

Thu 12/11

10:30 am-3:50 pm

1 stop11h 20m

$503

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Fri 2/13

9:15 pm-8:25 am

1 stop29h 10m

Ljubljana Joze Pucnik

Mon 2/16

9:20 am-7:20 pm

1 stop16h 00m

$516

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Fri 12/5

1:30 pm-6:40 pm

1 stop23h 10m

Ljubljana Joze Pucnik

Sat 12/13

9:20 am-11:45 am

1 stop32h 25m

$535

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Wed 12/3

6:50 pm-11:40 am

1 stop10h 50m

Ljubljana Joze Pucnik

Sun 12/7

12:45 pm-4:05 pm

1 stop33h 20m

$538

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sat 12/6

6:50 pm-11:40 am

1 stop10h 50m

Ljubljana Joze Pucnik

Fri 12/12

12:50 pm-4:05 pm

1 stop33h 15m

$539

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sat 12/6

6:50 pm-11:40 am

1 stop10h 50m

Ljubljana Joze Pucnik

Sat 12/13

12:50 pm-4:05 pm

1 stop33h 15m

$539

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sat 12/6

6:50 pm-11:40 am

1 stop10h 50m

Ljubljana Joze Pucnik

Sun 12/14

12:45 pm-4:05 pm

1 stop33h 20m

$539

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Thu 1/15

12:30 pm-11:40 am

2 stops17h 10m

Ljubljana Joze Pucnik

Mon 1/19

12:50 pm-4:05 pm

1 stop33h 15m

$543

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Fri 12/5

6:05 pm-12:20 pm

1 stop12h 15m

Ljubljana Joze Pucnik

Sun 12/14

12:45 pm-4:05 pm

1 stop33h 20m

$545

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sat 12/6

12:19 pm-12:15 pm

2 stops17h 56m

Ljubljana Joze Pucnik

Sun 12/14

12:45 pm-4:05 pm

1 stop33h 20m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 37 results

Best time to book a flight from Washington, D.C. to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia from Washington, D.C. 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, D.C. to Slovenia

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Slovenia

Get a feel of what it's like to fly with SWISS, Turkish Airlines, and Lufthansa from Washington, D.C. to Slovenia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

SWISS

7.5

Good

1,775 reviews

Reviews

1 / 20

2.0

Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.

SWISS

7.5

Good

1,775 reviews

SWISS

7.5

Good

1,775 reviews

Reviews

1 / 20

2.0

Mediocre

Joanne,Sep 2025

OPO - ZRH

Turkish Airlines

7.3

Good

4,031 reviews

SWISS

7.5

Good

1,775 reviews

Reviews

1 / 20

2.0

Mediocre

Joanne,Sep 2025

OPO - ZRH

Lufthansa

6.8

Okay

7,541 reviews

SWISS

7.5

Good

1,775 reviews

Reviews

1 / 20

2.0

Mediocre

Joanne,Sep 2025

OPO - ZRH

Related info for your journey

How long is the flight from Washington, D.C. to Slovenia?
Departing from Washington, D.C. to Slovenia will take you 10h 50m. The distance between Washington, D.C. and Slovenia is about 4429 mi. This flight may include one or multiple stops.
What are the most popular routes from Washington, D.C. to Slovenia?
While some choose either Washington, D.C. Reagan-National - Ljubljana Joze Pucnik or Baltimore/Washington - Ljubljana Joze Pucnik, Washington, D.C. Dulles Intl - Ljubljana Joze Pucnik is the most popular route from Washington, D.C. to Slovenia.
Can I find deals for flights from Washington, D.C. to Slovenia that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Slovenia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Slovenia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Slovenia.
Can I find deals for business class flights from Washington, D.C. to Slovenia?
Yes. Cheapflights offers flight deals from Washington, D.C. 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Slovenia

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Top 3 airlines flying from Washington, D.C. to Slovenia

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$662	Average$816	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$824	Average$1,155	FlexibilityNo cancel fee	On-time76%
SWISS	Cheapest$845	Average$1,105	FlexibilityNo cancel fee	On-time79%

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$410+ Cheap flights from Washington, D.C. (WAS) 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Slovenia with Cheapflights

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Cheap flight deals from Washington, D.C. to Slovenia

Keep the following information in mind while searching for Washington, D.C. to Slovenia flight deals. Data was last updated October 30, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Slovenia

Cheapest flights from Washington, D.C. to SloveniaExplore the most affordable flight options available from Washington, D.C. to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Explore the most affordable flight options available from Washington, D.C. to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Cheapflights Fare Finder

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Best time to book a flight from Washington, D.C. to Slovenia

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Reviews of airlines servicing Slovenia

Get a feel of what it's like to fly with SWISS, Turkish Airlines, and Lufthansa from Washington, D.C. to Slovenia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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Alternative routes for Washington, D.C. to Slovenia

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Top 3 airlines flying from Washington, D.C. to Slovenia

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Cheapest flights from Washington, D.C. to Slovenia
Explore the most affordable flight options available from Washington, D.C. to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.