The cheapest times to fly from SEA to LJU are

  • January 1st to March 25th
  • September 3rd to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SEA to LJU is mid January. Prices can be as high as $1768 for Friday flights during late June, or as low as $595 for Monday flights around mid January.


When to Fly to Ljubljana

Flying from Seattle, WA (SEA) to Ljubljana (LJU) will usually cost between $850 to $1668 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid January with an average ticket price of $917. Due to high demand the most expensive time to fly is late June, with an average price of $1637. Planning your trip to low-cost times can easily save you $720 on economy flights and even more on first-class flights. Generally, any price below $1143 can be considered a good price for a round-trip SEA to LJU flight.

See below for a graph of average weekly prices for the SEA to LJU route. All prices are for round-trip tickets in USD.

SEA to LJU Flight Prices

Compared to other flights, the SEA to LJU flight is slightly more expensive than the average and costs about as much as the average flight leaving from Seattle. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to LJU, and Sunday the cheapest day to fly back into SEA. Fridays are the most expensive days to fly to Ljubljana, and Saturdays are the most expensive days to return to Seattle. Selecting flights on the least expensive days could save you up to $113 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $1113. Return trip prices are from the LJU to SEA flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SEA to LJU can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 48 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SEA to LJU while comparing.

Destination alternative #1: Marco Polo International Airport (VCE) in Venice

  • 113 miles (182 km) away from LJU
  • Usually 19.51% less expensive than LJU
  • 1-layover flights available

See SEA to VCE flights

Destination alternative #2: Zagreb Airport (ZAG) in Zagreb

  • 84 miles (135 km) away from LJU
  • Usually 7.26% less expensive than LJU
  • 1-layover flights available

See SEA to ZAG flights


Flight Hacking SEA to LJU

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SEA to LJU — but Champion Traveler does!

Hack #1: London (SEA > LHR > LJU)

  • Price for both tickets: $719
  • Average savings: $424 (37.1%)

See SEA to LHR flights

Hack #2: London (SEA > LGW > LJU)

  • Price for both tickets: $834
  • Average savings: $309 (27.03%)

See SEA to LGW flights

Hack #3: Manchester (SEA > MAN > LJU)

  • Price for both tickets: $869
  • Average savings: $275 (24.02%)

See SEA to MAN flights


Flight Questions Answered

Still have questions about flying from SEA to LJU? We’ve got answers.

Which airlines fly this route?

You can find 22 major airlines flying this route most often: Adria, Air Canada, Air France, Alaska, Alitalia, American, Austrian, British Airways, Brussels Airlines, Condor, Delta, Finnair, Iberia, Icelandair, KLM, LOT, Lufthansa, SAS, Singapore Airlines, SWISS, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Ljubljana Airport to Seattle/Tacoma International Airport?

The distance between the two airports is roughly 5456 miles or 8781 kilometers.

How long does it take to fly from SEA to LJU?

The real-world flight time for a nonstop SEA to LJU flight is about 10 hour 48 minutes.

How many flights go between Seattle, WA and Ljubljana?

It depends on the day of the week and the date, but a typical day might have around 75 available flights from SEA to LJU.


Airport Location Info


Departing Airport

Origination codeSEA
Origination airport nameSeattle/Tacoma International Airport
CitySeattle, WA
Countrythe United States

Return Airport

Destination codeLJU
Destination airport nameLjubljana Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.