$398 Find Cheap Flights from Washington Dulles Airport to Slovenia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Slovenia departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Best Slovenia Flight Deals from Dulles Intl

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Ljubljana
Ljubljana1 stop$879
Ljubljana
Ljubljana1 stop$879

Cheap Flight Deals from Dulles Intl to Slovenia (IAD-SI0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Slovenia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to Slovenia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl to Slovenia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Turkish Airlines Logo
9:40 pm - 8:30 amIAD-LJU
28h 50m1 stop
Turkish Airlines Logo
9:25 am - 11:45 amLJU-IAD
32h 20m1 stop
$879Turkish Airlines
Find Deal
Mon, Sep 8 - Wed, Sep 17
 Logo
9:45 am - 10:05 amIAD-LJU
18h 20m2 stops
 Logo
7:25 pm - 4:15 pmLJU-IAD
26h 50m1 stop
Mon, Sep 8 - Wed, Sep 17
Air France Logo
12:30 pm - 11:05 amIAD-LJU
16h 35m2 stops
Air France Logo
12:20 pm - 7:15 pmLJU-IAD
12h 55m1 stop
$1,047Air France
Find Deal
Thu, Oct 9 - Sun, Oct 19
Lufthansa Logo
6:10 pm - 12:35 pmIAD-LJU
12h 25m2 stops
Lufthansa Logo
8:00 pm - 3:50 pmLJU-IAD
25h 50m2 stops
$1,062Lufthansa
Find Deal
Fri, Sep 5 - Thu, Sep 11
Lufthansa Logo
10:20 pm - 9:30 amIAD-LJU
29h 10m2 stops
Lufthansa Logo
10:05 am - 7:25 pmLJU-IAD
15h 20m2 stops
$1,123Lufthansa
Find Deal
Thu, Oct 9 - Sat, Oct 18
KLM Logo
6:30 pm - 11:35 amIAD-LJU
11h 05m1 stop
KLM Logo
12:35 pm - 3:35 pmLJU-IAD
33h 00m1 stop
$1,127KLM
Find Deal
Wed, May 21 - Tue, Aug 19
Air France Logo
6:30 pm - 11:35 amIAD-LJU
11h 05m1 stop
Air France Logo
12:20 pm - 11:15 pmLJU-IAD
16h 55m2 stops
$1,142Air France
Find Deal
Wed, May 21 - Tue, Aug 19
KLM Logo
5:25 pm - 8:15 amIAD-LJU
32h 50m1 stop
KLM Logo
12:35 pm - 3:35 pmLJU-IAD
33h 00m1 stop
$1,167KLM
Find Deal
Wed, May 21 - Tue, Aug 19
SWISS Logo
8:45 pm - 10:05 amIAD-LJU
31h 20m1 stop
SWISS Logo
7:20 pm - 4:15 pmLJU-IAD
26h 55m1 stop
$1,195SWISS
Find Deal
Sat, Jul 19 - Tue, Jul 29
SWISS Logo
8:45 pm - 10:05 amIAD-LJU
31h 20m1 stop
SWISS Logo
10:50 am - 4:15 pmLJU-IAD
11h 25m1 stop
$1,292SWISS
Find Deal
Sun, May 18 - Sun, May 25
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KAYAK's insights & trends for Dulles Intl to Slovenia flights

Get data-powered insights and trends into flights from Dulles Intl to Slovenia to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Slovenia?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Slovenia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington Dulles Airport to Slovenia, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Slovenia, Thursday is the cheapest day to fly and Wednesday is the most expensive.


Good to know

High seasonJuly
Cheapest flight$398
Most popular time to fly with an average 15% increase in price.
Flight from Washington, D.C. to Ljubljana

FAQs - booking Slovenia flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Slovenia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Slovenia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Slovenia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Slovenia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Slovenia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to Slovenia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Slovenia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to Slovenia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Slovenia?

    The cheapest time of day to fly to Slovenia is generally at night, when round-trip flights cost $1,005 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Slovenia is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,166.

Top airlines flying from Dulles Intl to Slovenia

Need help choosing which airline to fly with from Dulles Intl to Slovenia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
SWISSOverall score based on 1588 reviews
6.7Entertainment
7.0Food
8.2Crew
7.4Comfort
7.6Boarding
Airline reviews

Delayed 30 mins Forced to check in my carry on luggage

4.0 OkayAnthony, Apr 2025LHR - GVA
Read more SWISS reviews

Delayed 30 mins Forced to check in my carry on luggage

The cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

The biggest let down was with booking experience through Kayak. I booked a flight with checked bags on Kayak. Right away I got a message from travel agency that the flight is not confirmed and to call them. I called them and they said the flight I have booked is no longer available with the price I have booked it for and I can book it with about $100 more. I already had other options I could book with cheaper price so I asked them to cancel my booking. Then they said I can have the ticket with the same price but a date change which was not working for me as I had to be there for a seminar. So again I said no then they said they will cover the charges and confirm my flight. When comes time for check-in I see I have no checked bag option which means the travel agency deceived me saying I can have my booking as I had booked it. And at that point I ended up paying $155 for my checked bag going back and forth. I am extremely angry and unhappy with this experience

PLEASE DONT TAKE FORCEFULLY(SIZE APPROPRIATE) CARRY ONS FROM PASSENGERS WHO FOR SOME REASON NEED TO KEEP IT

It was great. My seat was comfortable. The bathrooms were clean . The service was superb . I travel a lot and I have been in 64 counties. I wish I could fly first class, even though I could , but I prefer to budget my yearly travelling expense on actual visiting , not on flight. Anyway, my point is that your economy was far much better than other airlines as good as Air France. The flight attendants and all crew were polite and very helpful and respectful. Thank you for making my long trip tolerable.

I slept the whole flight so I can't tell you about the food and there was no entertainment offered. Crew was very nice, seats were comfortable in business, and boarding was easy.

The service was flawless. The trip went great. I flew from Venice, Italy to Tampa, Florida. The issue is my bag (that I checked for free when checking into the flight) was ripped along the side when I collected it from baggage claim in Tampa, last night. I thought of talking with the Tampa baggage claim employees about it and see what could be done, but my bag isn’t a very expensive bag and I didn’t want to make a big deal of it. I’m not sure if I’ll be checking a bag anymore in the future.

It is a good airlines, very professional very good food. I wish they offered free luggage is the only thing.

I like how professional, fast and good the whole experience was.

For the price of the ticket it's probably the best service in the world

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

Everything you need to know for your flight from Dulles Intl to Slovenia

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