What is the cheapest airline to fly from Portland to Ljubljana round-trip?

Delta, at $757, was found to be the cheapest airline from Portland to Ljubljana.. Users have found that Delta is 34% cheaper than the other options available to this destination.

What is the cheapest month to book a flight from Portland to Ljubljana?

Currently, February is the cheapest month in which you can book a flight from Portland to Ljubljana (average of $710). Flying from Portland to Ljubljana in June is currently the most expensive (average of $1,434). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Portland to Ljubljana?

Travelers seeking maximum savings on their Portland to Ljubljana flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Ljubljana 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 Ljubljana when rainfall is around 1.6 in.

If weather is an important factor for your trip to Ljubljana, 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).

Can I find deals for flights from Portland to Ljubljana that include hotel bookings?

Yes. In addition to deals on Portland to Ljubljana flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Portland to Ljubljana?

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

Can I find deals for business class flights from Portland to Ljubljana?

Yes. Cheapflights offers flight deals from Portland to Ljubljana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flight deals from Portland to Ljubljana

Popular in	June
Cheapest in	March
Average price	$1,458

Highest demand for flights based on searches. 17% potential increase in price ($251 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Best time to book a flight from Portland to Ljubljana

Have a flexible travel schedule? Discover the best time to fly to Ljubljana from Portland 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 Portland to Ljubljana

What is the cheapest time of day to fly from PDX to LJU?

When flying from Portland to Ljubljana, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 30% versus a flight at noon.

Reviews of airlines servicing Ljubljana

Peruse reviews from past customers who have flown with Delta from Portland to Ljubljana 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.

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,961 reviews

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What is the cheapest airline to fly from Portland to Ljubljana round-trip?
Delta, at $757, was found to be the cheapest airline from Portland to Ljubljana.. Users have found that Delta is 34% cheaper than the other options available to this destination.
Can I find deals for flights from Portland to Ljubljana that include hotel bookings?
Yes. In addition to deals on Portland to Ljubljana flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Ljubljana?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Ljubljana.
Can I find deals for business class flights from Portland to Ljubljana?
Yes. Cheapflights offers flight deals from Portland to Ljubljana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Portland to Ljubljana?
Currently, February is the cheapest month in which you can book a flight from Portland to Ljubljana (average of $710). Flying from Portland to Ljubljana in June is currently the most expensive (average of $1,434). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Portland to Ljubljana

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$757	Average$1,153	FlexibilityNo cancel fee	On-timeN/A

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Cheap flights from Portland (PDX) to Ljubljana (LJU)

Find cheap flights from Portland to Ljubljana with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Ljubljana

Popular in

Cheapest in

Average price

Best time to book a flight from Portland to Ljubljana

Have a flexible travel schedule? Discover the best time to fly to Ljubljana from Portland with our price prediction graph.

Cheapflights Insights

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

What is the cheapest time of day to fly from PDX to LJU?

Reviews of airlines servicing Ljubljana

Peruse reviews from past customers who have flown with Delta from Portland to Ljubljana 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 Portland to Ljubljana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Portland to Ljubljana round-trip?

Can I find deals for flights from Portland to Ljubljana that include hotel bookings?

How can I find direct flights from Portland to Ljubljana?

Can I find deals for business class flights from Portland to Ljubljana?

What is the cheapest month to book a flight from Portland to Ljubljana?

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Top airline flying from Portland to Ljubljana

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