The cheapest times to fly from STL to PAP are

  • January 1st to March 4th
  • March 26th to May 6th
  • August 6th to December 16th (except the weeks of November 19th and December 3rd)

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 PAP is late September. Prices can be as high as $1099 for Tuesday flights during late December, or as low as $515 for Wednesday flights around late September.


When to Fly to Port-au-Prince

Flying from St. Louis, MO (STL) to Port-au-Prince (PAP) will usually cost between $621 to $777 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late September with an average ticket price of $544. Due to high demand the most expensive time to fly is late December, with an average price of $887. Planning your trip to low-cost times can easily save you $343 on economy flights and even more on first-class flights. Generally, any price below $723 can be considered a good price for a round-trip STL to PAP flight.

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

STL to PAP Flight Prices

Compared to other flights, the STL to PAP flight is cheaper than the average and costs less than the average flight leaving from St. Louis. The average price per mile (for a direct flight) is $0.25, which is below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Tuesdays are the most expensive days to fly to Port-au-Prince, and Fridays are the most expensive days to return to St. Louis. Selecting flights on the least expensive days could save you up to $23 (3%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $697. Return trip prices are from the PAP 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 PAP can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 10 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 PAP while comparing.

Destination alternative #1: Gregorio Luperon International Airport (POP) in Puerto Plata

  • 139 miles (224 km) away from PAP
  • Usually 6.98% less expensive than PAP
  • 1-layover flights available

See STL to POP flights

Destination alternative #2: Cibao International Airport (STI) in Santiago

  • 124 miles (200 km) away from PAP
  • Usually 2.63% less expensive than PAP
  • 1-layover flights available

See STL to STI flights


Flight Hacking STL to PAP

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 PAP — but Champion Traveler does!

Hack #1: Jacksonville, FL (STL > JAX > PAP)

  • Price for both tickets: $562
  • Average savings: $162 (22.34%)

See STL to JAX flights

Hack #2: Nashville, TN (STL > BNA > PAP)

  • Price for both tickets: $589
  • Average savings: $135 (18.6%)

See STL to BNA flights

Hack #3: Orlando, FL (STL > MCO > PAP)

  • Price for both tickets: $610
  • Average savings: $113 (15.63%)

See STL to MCO flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Air Canada, Air France, American, COPA, Delta, and potentially more during busy seasons.

How far away is it from Port Au Prince International Airport to St Louis Lambert International Airport?

The distance between the two airports is roughly 1765 miles or 2840 kilometers.

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

The real-world flight time for a nonstop STL to PAP flight is about 4 hour 10 minutes.

How many flights go between St. Louis, MO and Port-au-Prince?

It depends on the day of the week and the date, but a typical day might have around 25 available flights from STL to PAP.


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 PAP
Destination airport name Port Au Prince International Airport
City Port-au-Prince
Country Haiti
Latitude 18.6
Longitude -72.3


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.