The cheapest times to fly from STL to SPU are

  • January 1st to April 1st
  • May 7th to May 20th
  • July 2nd to July 15th
  • October 1st to December 16th (except the weeks of October 8th and October 22nd)

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 STL to SPU is mid January. Prices can be as high as $2339 for Saturday flights during late August to early September, or as low as $1057 for Tuesday flights around mid January.


When to Fly to Split

Flying from St. Louis, MO (STL) to Split (SPU) will usually cost between $1156 to $1971 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 $1127. Due to high demand the most expensive time to fly is late August to early September, with an average price of $1959. Planning your trip to low-cost times can easily save you $832 on economy flights and even more on first-class flights. Generally, any price below $1478 can be considered a good price for a round-trip STL to SPU flight.

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

STL to SPU Flight Prices

Compared to other flights, the STL to SPU flight is slightly more expensive than the average and costs more than the average flight leaving from St. Louis. The average price per mile (for a direct flight) is $0.18, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to Split, and Fridays are the most expensive days to return to St. Louis. Selecting flights on the least expensive days could save you up to $118 (8%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1379. Return trip prices are from the SPU to STL 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 STL to SPU can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 14 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 STL to SPU while comparing.

Destination alternative #1: Sarajevo Airport (SJJ) in Sarajevo

  • 104 miles (167 km) away from SPU
  • Usually 22.73% less expensive than SPU
  • 2-layover flights available

See STL to SJJ flights

Destination alternative #2: Dubrovnik Airport (DBV) in Dubrovnik

  • 120 miles (193 km) away from SPU
  • Usually 6.56% less expensive than SPU
  • 1-layover flights available

See STL to DBV flights


Flight Hacking STL to SPU

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 STL to SPU — but Champion Traveler does!

Hack #1: London (STL > LHR > SPU)

  • Price for both tickets: $1077
  • Average savings: $401 (27.13%)

See STL to LHR flights

Hack #2: New York, NY (STL > JFK > SPU)

  • Price for both tickets: $1102
  • Average savings: $377 (25.47%)

See STL to JFK flights

Hack #3: New York, NY (STL > LGA > SPU)

  • Price for both tickets: $1106
  • Average savings: $372 (25.17%)

See STL to LGA flights


Flight Questions Answered

Still have questions about flying from STL to SPU? We’ve got answers.

Which airlines fly this route?

You can find 22 major airlines flying this route most often: Aer Lingus, Air Canada, Air France, Alitalia, Austrian, British Airways, Brussels Airlines, Croatia, Delta, Emirates, Ethiopian, Finnair, JetBlue, Kenya Airways, KLM, Lufthansa, RwandAir, SAS, Singapore Airlines, South African, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Split Airport to St Louis Lambert International Airport?

The distance between the two airports is roughly 5139 miles or 8270 kilometers.

How long does it take to fly from STL to SPU?

The real-world flight time for a nonstop STL to SPU flight is about 10 hour 14 minutes.

How many flights go between St. Louis, MO and Split?

It depends on the day of the week and the date, but a typical day might have around 19 available flights from STL to SPU.


Airport Location Info


Departing Airport

Origination code STL
Origination airport name St Louis Lambert International Airport
City St. Louis, MO
Country the United States
Latitude 38.7
Longitude -90.4

Return Airport

Destination code SPU
Destination airport name Split Airport
City Split
Country Croatia
Latitude 43.5
Longitude 16.3


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.