$546 Find Cheap Flights from Seattle 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 Seattle to Slovenia departing on 12/29. 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.
1 adult
1 adult, Economy

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Cheap Flights from Seattle to Slovenia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ljubljana
Ljubljana1 stop$681
Ljubljana
Ljubljana1 stop$681

Book Cheap Seattle to Slovenia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Slovenia

Wed, Sep 10 - Thu, Sep 25
Turkish Airlines Logo
7:10 pm - 8:30 amSEA-LJU
28h 20m1 stop
Turkish Airlines Logo
9:25 am - 5:15 pmLJU-SEA
16h 50m1 stop
$681Turkish Airlines
Find Deal
Tue, Sep 9 - Fri, Sep 19
Turkish Airlines Logo
7:10 pm - 7:15 pmSEA-LJU
15h 05m1 stop
Turkish Airlines Logo
8:10 pm - 10:35 amLJU-SEA
23h 25m1 stop
$700Turkish Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 7
Turkish Airlines Logo
12:30 pm - 7:15 pmSEA-LJU
21h 45m1 stop
Turkish Airlines Logo
9:25 am - 5:15 pmLJU-SEA
16h 50m1 stop
$714Turkish Airlines
Find Deal
Wed, Sep 10 - Mon, Sep 22
Turkish Airlines Logo
7:10 pm - 8:30 amSEA-LJU
28h 20m1 stop
Turkish Airlines Logo
9:25 am - 10:35 amLJU-SEA
34h 10m1 stop
$718Turkish Airlines
Find Deal
Mon, Oct 13 - Mon, Nov 17
Turkish Airlines Logo
7:10 pm - 7:15 pmSEA-LJU
15h 05m1 stop
Turkish Airlines Logo
9:20 am - 5:05 pmLJU-SEA
16h 45m1 stop
$719Turkish Airlines
Find Deal
Mon, Oct 13 - Mon, Nov 17
Delta Logo
7:10 am - 12:00 pmSEA-LJU
19h 50m2 stops
Delta Logo
12:25 pm - 11:25 amLJU-SEA
32h 00m1 stop
$785Delta
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Mon, Oct 13 - Mon, Nov 17
Delta Logo
7:10 am - 12:00 pmSEA-LJU
19h 50m2 stops
Delta Logo
12:25 pm - 4:58 pmLJU-SEA
37h 33m2 stops
$794Delta
Find Deal
Thu, Sep 11 - Thu, Sep 18
British Airways Logo
1:30 pm - 8:20 pmSEA-LJU
21h 50m1 stop
British Airways Logo
7:00 pm - 11:35 amLJU-SEA
25h 35m1 stop
$799British Airways
Find Deal
Thu, Sep 11 - Thu, Sep 25
British Airways Logo
1:30 pm - 8:20 pmSEA-LJU
21h 50m1 stop
British Airways Logo
7:00 pm - 11:35 amLJU-SEA
25h 35m1 stop
$804British Airways
Find Deal
Wed, Sep 10 - Wed, Sep 24
Air France Logo
6:45 pm - 11:05 amSEA-LJU
31h 20m1 stop
Air France Logo
12:20 pm - 11:54 pmLJU-SEA
20h 34m2 stops
$832Air France
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Slovenia flights

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

What is the cheapest month to fly from Seattle to Slovenia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Slovenia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Slovenia is January, when tickets cost $664 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,323 and $1,115 respectively.

Good to know

Low seasonFebruary
Cheapest flight$546
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Seattle to Ljubljana

FAQs - booking Slovenia flights

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to Slovenia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle 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 Seattle 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 Seattle 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 Seattle 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 Seattle 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 $704 on average. Morning departures are around 13% cheaper than evening flights, on average. The most expensive time of day to fly to Slovenia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,273.

Reviews of the top 4 airlines serving from Seattle to Slovenia

 
Need help choosing which airline to fly with from Seattle 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.
8.0
DeltaOverall score based on 7986 reviews
8.5Crew
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
Airline reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

10.0 ExcellentLee, Aug 2025ATL - PHL
Read more Delta reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.

Having to up charge for a seat assignment is not good. Delta can do better

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

The crew were very hospitable and pleasant. The food was pretty good. Unfortunately, there was a flight delay of more than 2 hours. We're not sure why but it appeared to be outside the control of Turkish Airlines.

Bough tickets with luggage, but made me pay at Airport as well

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

Everything was very good, except that the plane was an hour and a half late

flight with heavy turbulence old boeing 777 rest wasnt clean dashboard doesn’t work

Light and recline did not work on my seat. Very uncomfortable and could not read in the dark

Bad experience; they are not good anymore. They charge too much for luggage seat are so uncomfortable, Flight delays which may miss your next flight, they don’t care if you miss the flight or not. Zero customer services for front desk representatives Istanbul's airport I’m not using this airline any more.

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

Flight was late arriving. So, we left 25 min late. Pilot made some time up during the flight. Therefore, we arrived alittle past original time.

Food is too little (in volume) and too spicy.. There are no snacks in the back of the plane in between meals.

The seat I was stuck in was so unimaginably uncomfortable. I have never had that tight of a seat in my 20 years of flying. Even budget airlines give you more space.

We were upgraded to economy plus and everything was awesome!

I liked the crews attentiveness, all food and drink items were tasty, and came out in a timely manner. The entertainment systems were not as responsive and my seat had issues with the auxiliary for the headphones. Seats were OK, and the headrest for my seat could go back only so far. Bathrooms were tight fit.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

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