PDX - LJU

Find cheap flights from Portland to Ljubljana

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ljubljana

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ljubljana, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ljubljana, as well as popular online travel agencies
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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Portland and Ljubljana. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $1,170 (round-trip)
Shortest trip • 14h 23m (one-way)
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Ljubljana (PDX-LJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Ljubljana 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 Portland to Ljubljana

Multiple Airlines Logo
PDX
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LJU
5573 mimulti-stop
Multiple Airlines Logo
LJU
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PDX
5573 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Ljubljana flights

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

What is the most popular layover airport when flying from Portland to Ljubljana?

Percentage of 1-stop round-trip flights from Portland to Ljubljana chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Amsterdam (AMS) is the top choice – 81% of KAYAK users who clicked on 1-stop flights from Portland to Ljubljana picked an itinerary connecting there.

What is the cheapest layover airport when flying from Portland to Ljubljana?

Average round-trip price for 1-stop flights from Portland to Ljubljana clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via London (LHR) offer the most affordable fares, with an average round-trip price of $1,170.

Which layover airport offers the shortest total travel time from Portland to Ljubljana?

Shortest average total travel time for 1-stop one-way flights from Portland to Ljubljana via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Amsterdam (AMS) for the shortest journey. The average one-way travel time for flights connecting there is 14h 23m.

Which layover airport has the quickest connection when flying from Portland to Ljubljana?

Average layover duration at different layover airports for 1-stop one-way flights from Portland to Ljubljana, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, London (LHR) often has the shortest layovers from Portland to Ljubljana, with an average of 4h 54m.

When to book flights from Portland to Ljubljana

Are your dates flexible? Find out the best times to travel from Portland to Ljubljana based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Ljubljana

  • Do I need a passport to fly between Portland and Ljubljana?

    A passport is required to fly from Portland to Ljubljana.

  • Which aircraft models fly most regularly from Portland to Ljubljana?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Ljubljana?

    SkyTeam is the only airline alliance operating flights between Portland and Ljubljana.

  • Which is the best airline for flights from Portland to Ljubljana, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Portland to Ljubljana are Delta and KLM. With an average price for the route of $1,463 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,002 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Portland to Ljubljana?

    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 Portland to Ljubljana.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ljubljana from Portland 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 Portland to Ljubljana?

    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 to Ljubljana with an airline and back to Portland with another airline. Booking your flights between Portland and LJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Ljubljana?

    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 to Ljubljana from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Portland to Ljubljana

 
See real verified KAYAK customer reviews for airlines flying from Portland to Ljubljana. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Ljubljana? 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.
7.9
DeltaOverall score based on 8288 reviews
7.9Comfort
7.2Food
7.8Entertainment
8.1Boarding
8.5Crew
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Everything you need to know for your flight from Portland to Ljubljana

Information on your arrival and departure airports