The cheapest times to fly from ORD to SLU are

  • January 8th to February 11th
  • February 26th to April 1st
  • May 14th to June 10th (except the week of May 21st)
  • September 3rd to December 9th (except the week of September 17th)

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 ORD to SLU is early November. Prices can be as high as $1589 for Wednesday flights during late July, or as low as $668 for Friday flights around early November.


When to Fly to Saint Lucia

Flying from Chicago, IL (ORD) to St. Lucia (SLU) will usually cost between $703 to $1402 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $751. Due to high demand the most expensive time to fly is late July, with an average price of $1324. Planning your trip to low-cost times can easily save you $573 on economy flights and even more on first-class flights. Generally, any price below $822 can be considered a good price for a round-trip ORD to SLU flight.

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

ORD to SLU Flight Prices

Compared to other flights, the ORD to SLU flight is cheaper than the average and costs less than the average flight leaving from Chicago. The average price per mile (for a direct flight) is $0.2, which is below average.


Flight Prices by Day of the Week

Friday is usually the cheapest day to fly to SLU, and Tuesday the cheapest day to fly back into ORD. Wednesdays are the most expensive days to fly to Saint Lucia, and Sundays are the most expensive days to return to Chicago. Selecting flights on the least expensive days could save you up to $166 (15%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Friday and returning a week later will cost an average of $837. Return trip prices are from the SLU to ORD 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 ORD to SLU can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 30 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 ORD to SLU while comparing.

Destination alternative #1: Grantley Adams International Airport (BGI) in Barbados/Bridgetown

  • 120 miles (193 km) away from SLU
  • Usually 32.97% less expensive than SLU
  • 1-layover flights available

See ORD to BGI flights

Destination alternative #2: Maurice Bishop International Airport (GND) in Grenada

  • 149 miles (240 km) away from SLU
  • Usually 17.82% less expensive than SLU
  • 1-layover flights available

See ORD to GND flights

Destination alternative #3: Hewanorra International Airport (UVF) in St. Lucia

  • 20 miles (32 km) away from SLU
  • Usually 4.62% less expensive than SLU
  • Nonstop flights available

See ORD to UVF flights

Destination alternative #4: Douglas Charles Airport (DOM) in Marigot

  • 107 miles (172 km) away from SLU
  • Usually 3.04% less expensive than SLU
  • 1-layover flights available

See ORD to DOM flights


Flight Hacking ORD to SLU

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 ORD to SLU — but Champion Traveler does!

Hack #1: Fort Lauderdale, FL (ORD > FLL > SLU)

  • Price for both tickets: $786
  • Average savings: $36 (4.38%)

See ORD to FLL flights

Hack #2: Port of Spain (ORD > POS > SLU)

  • Price for both tickets: $817
  • Average savings: $5 (0.61%)

See ORD to POS flights


Flight Questions Answered

Still have questions about flying from ORD to SLU? We’ve got answers.

Which airlines fly this route?

You can find 8 major airlines flying this route most often: Air Canada, Air France, Caribbean Airlines, COPA, Delta, JetBlue, LIAT, United, and potentially more during busy seasons.

How far away is it from George F Charles Airport to Chicago O’Hare International Airport?

The distance between the two airports is roughly 2513 miles or 4044 kilometers.

How long does it take to fly from ORD to SLU?

The real-world flight time for a nonstop ORD to SLU flight is about 5 hour 30 minutes.

How many flights go between Chicago, IL and St. Lucia?

It depends on the day of the week and the date, but a typical day might have around 46 available flights from ORD to SLU.


Airport Location Info


Departing Airport

Origination code ORD
Origination airport name Chicago O’Hare International Airport
City Chicago, IL
Country the United States
Latitude 42
Longitude -87.9

Return Airport

Destination code SLU
Destination airport name George F Charles Airport
City St. Lucia
Country St Lucia
Latitude 14
Longitude -61


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.