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

Airlines like Turkish Airlines and SWISS fly from Washington, D.C. Dulles Intl Airport to Slovenia in about 16h 05m. The time it takes to get you to your destination can typically vary by up to 1h 35m. There are 4429 mi between Washington, D.C. Dulles Intl Airport and Slovenia. 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 is the cheapest time of day to fly from IAD to SI?

When flying from Washington, D.C. Dulles Intl Airport 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 Dulles Intl to Slovenia that include hotel bookings?

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

How can I find direct flights from Dulles Intl to Slovenia?

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

Can I find deals for business class flights from Dulles Intl to Slovenia?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$375+ Flights from Washington, D.C. Dulles Intl Airport to Slovenia

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Cheap flight deals from Dulles Intl to Slovenia

Cheapest flights from Dulles Intl to Slovenia
Explore the most affordable flight options available from Dulles Intl to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.

Fri 12/265:15 pmIAD - LJU

1 stop10h 35mLufthansa

Tue 12/301:20 pmLJU - IAD

1 stop32h 15mLufthansa

Deal found 12/3

$1,479

Fri 12/265:15 pmIAD - LJU

1 stop10h 35mMultiple Airlines

Tue 12/302:55 pmLJU - IAD

2 stops29h 40mMultiple Airlines

Deal found 12/3

$1,494

Wed 12/1710:20 pmIAD - LJU

2 stops33h 15mMultiple Airlines

Sun 12/2810:35 amLJU - IAD

1 stop15h 40mMultiple Airlines

Deal found 12/3

$1,519

Wed 12/175:25 pmIAD - LJU

1 stop14h 10mSWISS

Sun 12/282:30 pmLJU - IAD

1 stop32h 35mSWISS

Deal found 12/3

$1,711

Wed 12/175:40 pmIAD - LJU

1 stop19h 50mLufthansa

Sun 12/2810:35 amLJU - IAD

1 stop15h 40mLufthansa

Deal found 12/4

$2,019

Best flights from Dulles Intl to Slovenia
Discover carefully curated flight deals from Dulles Intl to Slovenia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 5, 2025.

Sun 3/291:20 pmIAD - LJU

1 stop17h 40mTurkish Airlines

Tue 4/79:40 amLJU - IAD

1 stop31h 55mTurkish Airlines

Deal found 12/3

$633

Wed 5/138:45 pmIAD - LJU

1 stop16h 05mSWISS

Wed 8/1910:50 amLJU - IAD

1 stop11h 30mSWISS

Deal found 12/4

$677

Sun 3/2910:20 pmIAD - LJU

1 stop14h 55mMultiple Airlines

Tue 4/76:25 amLJU - IAD

2 stops19h 15mMultiple Airlines

Deal found 12/3

$712

Sun 1/1810:15 pmIAD - LJU

2 stops15h 15mLufthansa

Sun 1/2510:35 amLJU - IAD

1 stop15h 40mLufthansa

Deal found 12/3

$782

Fri 2/139:15 pmIAD - LJU

1 stop29h 10mTurkish Airlines

Sun 2/227:35 pmLJU - IAD

1 stop29h 45mTurkish Airlines

Deal found 12/4

$707

Sat 1/177:40 pmIAD - LJU

3 stops31h 15mMultiple Airlines

Sat 1/245:10 pmLJU - IAD

3 stops31h 20mMultiple Airlines

Deal found 12/2

$778

Sun 1/181:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Sun 1/257:35 pmLJU - IAD

1 stop22h 10mTurkish Airlines

Deal found 12/4

$715

Wed 5/1310:20 pmIAD - LJU

2 stops17h 35mLufthansa

Wed 8/197:50 pmLJU - IAD

2 stops23h 40mLufthansa

Deal found 12/3

$799

Sun 1/187:40 pmIAD - LJU

3 stops17h 50mMultiple Airlines

Sun 1/256:35 amLJU - IAD

3 stops17h 55mMultiple Airlines

Deal found 12/4

$801

Sat 1/179:15 pmIAD - LJU

1 stop29h 10mTurkish Airlines

Sat 1/249:20 amLJU - IAD

1 stop32h 25mTurkish Airlines

Deal found 12/2

$735

Wed 1/281:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Sun 2/17:35 pmLJU - IAD

1 stop22h 10mTurkish Airlines

Deal found 12/3

$782

Wed 2/119:15 pmIAD - LJU

1 stop29h 10mTurkish Airlines

Sun 2/159:20 amLJU - IAD

1 stop32h 25mTurkish Airlines

Deal found 12/2

$782

Last-minute flights from Dulles Intl to Slovenia
Discover last-minute flight deals from Dulles Intl to Slovenia. Data last updated December 5, 2025 and is based on user searches.

Fri 12/265:15 pmIAD - LJU

1 stop10h 35mLufthansa

Tue 12/301:20 pmLJU - IAD

1 stop32h 15mLufthansa

Deal found 12/3

$1,479

Sat 1/179:15 pmIAD - LJU

1 stop29h 10mTurkish Airlines

Sat 1/249:20 amLJU - IAD

1 stop32h 25mTurkish Airlines

Deal found 12/2

$735

Sat 1/177:40 pmIAD - LJU

3 stops31h 15mMultiple Airlines

Sat 1/245:10 pmLJU - IAD

3 stops31h 20mMultiple Airlines

Deal found 12/2

$778

Sun 1/181:30 pmIAD - LJU

1 stop23h 10mTurkish Airlines

Sun 1/257:35 pmLJU - IAD

1 stop22h 10mTurkish Airlines

Deal found 12/4

$715

Sun 1/188:30 pmIAD - LJU

1 stop11h 50mSWISS

Sun 1/252:30 pmLJU - IAD

2 stops53h 30mSWISS

Deal found 12/4

$756

Sun 1/1810:15 pmIAD - LJU

2 stops15h 15mLufthansa

Sun 1/2510:35 amLJU - IAD

1 stop15h 40mLufthansa

Deal found 12/3

$782

Sun 1/187:40 pmIAD - LJU

3 stops17h 50mMultiple Airlines

Sun 1/256:35 amLJU - IAD

3 stops17h 55mMultiple Airlines

Deal found 12/4

$801

One-way flights from Dulles Intl to Slovenia
Search for one-way flight options from Dulles Intl to Slovenia. Find affordable one-way fares based on user searches. Data last updated December 5, 2025.

Thu 4/1610:35 pmIAD - LJU

3 stops28h 25mMultiple Airlines

Deal found 12/3

$375

Thu 4/235:20 pmIAD - LJU

3 stops18h 45mMultiple Airlines

Deal found 12/4

$393

Sat 12/139:20 pmIAD - LJU

2 stops40h 00mMultiple Airlines

Deal found 12/4

$447

Thu 4/169:40 pmIAD - LJU

1 stop15h 50mTurkish Airlines

Deal found 12/3

$527

Wed 12/175:05 pmIAD - LJU

3 stops20h 25mMultiple Airlines

Deal found 12/3

$841

Tue 12/169:00 pmIAD - LJU

2 stops30h 40mMultiple Airlines

Deal found 12/3

$915

Sat 12/138:30 pmIAD - LJU

1 stop11h 10mSWISS

Deal found 12/4

$1,061

Tue 12/165:45 pmIAD - LJU

1 stop13h 10mBrussels Airlines

Deal found 12/3

$1,097

Find flight deals from Dulles Intl to Slovenia

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$633 (FlightHub)
One-way from	$375 (Mytrip)
Popular in	June
Cheapest in	November
Average price	$1,033

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. Dulles Intl to Slovenia

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Slovenia

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($279 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Sun 3/29

1:20 pm-1:00 pm

1 stop17h 40m

Ljubljana Joze Pucnik

Tue 4/7

9:40 am-11:35 am

1 stop31h 55m

$633

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Wed 5/13

8:45 pm-6:50 pm

1 stop16h 05m

Ljubljana Joze Pucnik

Wed 8/19

10:50 am-4:20 pm

1 stop11h 30m

$677

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

Sun 2/22

7:35 pm-7:20 pm

1 stop29h 45m

$707

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sun 3/29

10:20 pm-7:15 pm

1 stop14h 55m

Ljubljana Joze Pucnik

Tue 4/7

6:25 am-7:40 pm

2 stops19h 15m

$712

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sun 1/18

1:30 pm-6:40 pm

1 stop23h 10m

Ljubljana Joze Pucnik

Sun 1/25

7:35 pm-11:45 am

1 stop22h 10m

$715

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sat 1/17

9:15 pm-8:25 am

1 stop29h 10m

Ljubljana Joze Pucnik

Sat 1/24

9:20 am-11:45 am

1 stop32h 25m

$735

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sat 1/17

7:40 pm-8:55 am

3 stops31h 15m

Ljubljana Joze Pucnik

Sat 1/24

5:10 pm-6:30 pm

3 stops31h 20m

$778

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Sun 1/18

10:15 pm-7:30 pm

2 stops15h 15m

Ljubljana Joze Pucnik

Sun 1/25

10:35 am-8:15 pm

1 stop15h 40m

$782

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Wed 1/28

1:30 pm-6:40 pm

1 stop23h 10m

Ljubljana Joze Pucnik

Sun 2/1

7:35 pm-11:45 am

1 stop22h 10m

$782

Washington, D.C.Ljubljana

IAD - LJU

IADLJU

Washington, D.C. Dulles Intl

Wed 2/11

9:15 pm-8:25 am

1 stop29h 10m

Ljubljana Joze Pucnik

Sun 2/15

9:20 am-11:45 am

1 stop32h 25m

$782

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 20 results

Best time to book a flight from Dulles Intl to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia from Dulles Intl 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. Dulles Intl Airport to Slovenia

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

Reviews of airlines servicing Slovenia

Peruse reviews from past customers who have flown with Turkish Airlines and Lufthansa from Washington, D.C. Dulles Intl Airport to Slovenia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Turkish Airlines

7.3

Good

4,079 reviews

Reviews

1 / 20

6.0

Good

Chandra,Nov 2025

ATL - IST

TV was not available in Indigo from Istanbul to Delhi. Seat was not moving back. It was jammed.

Turkish Airlines

7.3

Good

4,079 reviews

Turkish Airlines

7.3

Good

4,079 reviews

Reviews

1 / 20

6.0

Good

Chandra,Nov 2025

ATL - IST

TV was not available in Indigo from Istanbul to Delhi. Seat was not moving back. It was jammed.

Lufthansa

6.8

Okay

7,613 reviews

Turkish Airlines

7.3

Good

4,079 reviews

Reviews

1 / 20

6.0

Good

Chandra,Nov 2025

ATL - IST

TV was not available in Indigo from Istanbul to Delhi. Seat was not moving back. It was jammed.

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to Slovenia?
Airlines like Turkish Airlines and SWISS fly from Washington, D.C. Dulles Intl Airport to Slovenia in about 16h 05m. The time it takes to get you to your destination can typically vary by up to 1h 35m. There are 4429 mi between Washington, D.C. Dulles Intl Airport and Slovenia. This flight may include one or multiple stops.
Can I find deals for flights from Dulles Intl to Slovenia that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Slovenia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Slovenia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Slovenia.
Can I find deals for business class flights from Dulles Intl to Slovenia?
Yes. Cheapflights offers flight deals from Dulles Intl 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 Dulles Intl to Slovenia

Dulles Intl to Heathrow flights

Dulles Intl to Charles de Gaulle flights

Baltimore to Heathrow flights

Dulles Intl to Leonardo da Vinci/Fiumicino flights

Reagan-National to Heathrow flights

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Dulles Intl to Lisbon flights

Dulles Intl to Madrid flights

Dulles Intl to London City flights

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Dulles Intl to Dublin flights

Dulles Intl to Barcelona-El Prat flights

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Baltimore to Gatwick flights

Dulles Intl to Orly flights

Reagan-National to Gatwick flights

Dulles Intl to Stansted flights

Dulles Intl to Athens flights

Reagan-National to Charles de Gaulle flights

Dulles Intl to Amsterdam flights

Baltimore to Charles de Gaulle flights

Reagan-National to Orly flights

Baltimore to Leonardo da Vinci/Fiumicino flights

Reagan-National to Leonardo da Vinci/Fiumicino flights

Dulles Intl to Luton flights

Baltimore to Madrid flights

Reagan-National to Madrid flights

Dulles Intl to Zurich flights

Dulles Intl to Keflavik Intl flights

Reagan-National to Istanbul flights

Reagan-National to Lisbon flights

Dulles Intl to Vienna flights

Baltimore to Barcelona-El Prat flights

Baltimore to Lisbon flights

Dulles Intl to Edinburgh flights

Baltimore to Istanbul flights

Reagan-National to Barcelona-El Prat flights

Baltimore to Luton flights

Baltimore to Keflavik Intl flights

Dulles Intl to Munich flights

Dulles Intl to Bruxelles-National flights

Baltimore to Dublin flights

Reagan-National to Keflavik Intl flights

Reagan-National to Dublin flights

Baltimore to Athens flights

Dulles Intl to Sabiha Gokcen flights

Reagan-National to Athens flights

Baltimore to Frankfurt flights

Baltimore to Amsterdam flights

Reagan-National to Frankfurt flights

Top 2 airlines flying from Dulles Intl to Slovenia

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$661	Average$732	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$786	Average$1,154	FlexibilityNo cancel fee	On-time76%

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$375+ Cheap flights from Dulles Intl (IAD) 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Dulles Intl to Slovenia

Cheapest flights from Dulles Intl to SloveniaExplore the most affordable flight options available from Dulles Intl to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.

Explore the most affordable flight options available from Dulles Intl to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.

Find flight deals from Dulles Intl to Slovenia

Keep the following information in mind while searching for Dulles Intl to Slovenia flight deals. Data was last updated December 5, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Dulles Intl to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Slovenia

Reviews of airlines servicing Slovenia

Peruse reviews from past customers who have flown with Turkish Airlines and Lufthansa from Washington, D.C. Dulles Intl Airport to Slovenia to help guide your decision. You can also see how each airline stacks up 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 Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Slovenia?

Can I find deals for flights from Dulles Intl to Slovenia that include hotel bookings?

How can I find direct flights from Dulles Intl to Slovenia?

Can I find deals for business class flights from Dulles Intl to Slovenia?

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 Dulles Intl to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Dulles Intl to Slovenia

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Cheapest flights from Dulles Intl to Slovenia
Explore the most affordable flight options available from Dulles Intl to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.