PDX - LJU

Find cheap flights from Portland to Ljubljana

1 adult
1 adult, Economy

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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-LJU
5573 mimulti-stop
Multiple Airlines Logo
LJU-PDX
5573 mimulti-stop
Multiple Airlines
Find Deal

Everything you should know

Cheapest round-trip
Multiple Airlines
Wed 9/17
PDX - LJU • multi-stop
Cheapest one-way
Multiple Airlines
Wed 9/17
PDX - LJU • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ljubljana!
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 – 60% 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 $1,395.

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 13h 52m.

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 2h 48m.

Find deals

Good to know

Low seasonMarch
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 27% increase in price.

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.

  • 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 airline 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 7957 reviews
7.9Comfort
7.9Entertainment
7.3Food
8.2Boarding
8.5Crew
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

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

Information on your arrival and departure airports

Portland (PDX)
Ljubljana (LJU)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.