The cheapest times to fly from ORD to RUN are

  • January 8th to March 4th (except the week of February 19th)
  • March 19th to May 6th (except the week of March 26th)
  • August 20th to October 7th
  • October 29th 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 ORD to RUN is early November. Prices can be as high as $5278 for Tuesday flights during early January, or as low as $1344 for Monday flights around early November.


When to Fly to Saint-Denis

Flying from Chicago, IL (ORD) to Reunion Island (RUN) will usually cost between $1349 to $2505 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 $1354. Due to high demand the most expensive time to fly is early January, with an average price of $2504. Planning your trip to low-cost times can easily save you $1149 on economy flights and even more on first-class flights. Generally, any price below $1770 can be considered a good price for a round-trip ORD to RUN flight.

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

ORD to RUN Flight Prices

Compared to other flights, the ORD to RUN flight is more expensive than the average and costs more than the average flight leaving from Chicago. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to RUN, and Tuesday the cheapest day to fly back into ORD. Tuesdays are the most expensive days to fly to Saint-Denis, and Fridays are the most expensive days to return to Chicago. Selecting flights on the least expensive days could save you up to $287 (11%) 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 $1750. Return trip prices are from the RUN 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 RUN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 18 hour 44 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 RUN while comparing.

Destination alternative #1: Sir Seewoosagur Ramgoolam International Airport (MRU) in Mauritius Island

  • 144 miles (232 km) away from RUN
  • Usually 23.28% less expensive than RUN
  • 1-layover flights available

See ORD to MRU flights


Flight Hacking ORD to RUN

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 RUN — but Champion Traveler does!

Hack #1: Paris (ORD > CDG > RUN)

  • Price for both tickets: $1379
  • Average savings: $392 (22.12%)

See ORD to CDG flights

Hack #2: Paris (ORD > ORY > RUN)

  • Price for both tickets: $1447
  • Average savings: $323 (18.25%)

See ORD to ORY flights

Hack #3: Johannesburg (ORD > JNB > RUN)

  • Price for both tickets: $1617
  • Average savings: $153 (8.64%)

See ORD to JNB flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 13 major airlines flying this route most often: Air Austral, Air France, Air India, American, British Airways, Brussels Airlines, Corsair, Delta, Finnair, KLM, Lufthansa, SWISS, United, and potentially more during busy seasons.

How far away is it from La Reunion Roland Garros Airport to Chicago O’Hare International Airport?

The distance between the two airports is roughly 9862 miles or 15871 kilometers.

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

The real-world flight time for a nonstop ORD to RUN flight is about 18 hour 44 minutes.

How many flights go between Chicago, IL and Reunion Island?

It depends on the day of the week and the date, but a typical day might have around 12 available flights from ORD to RUN.


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 RUN
Destination airport name La Reunion Roland Garros Airport
City Reunion Island
Country Reunion
Latitude -20.9
Longitude 55.5


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.