The cheapest times to fly from BMI to SJO are

  • January 8th to March 4th (except the week of February 12th)
  • April 9th to June 10th (except the week of May 7th)
  • October 8th to December 16th (except the week of November 19th)

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 BMI to SJO is late May. Prices can be as high as $2202 for Sunday flights during early August, or as low as $429 for Wednesday flights around late May.


When to Fly to San José

Flying from Bloomington/Normal, IL (BMI) to San Jose (SJO) will usually cost between $596 to $1033 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late May with an average ticket price of $584. Due to high demand the most expensive time to fly is early August, with an average price of $1562. Planning your trip to low-cost times can easily save you $977 on economy flights and even more on first-class flights. Generally, any price below $716 can be considered a good price for a round-trip BMI to SJO flight.

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

BMI to SJO Flight Prices

Compared to other flights, the BMI to SJO flight is cheaper than the average and costs less than the average flight leaving from Bloomington. The average price per mile (for a direct flight) is $0.21, which is below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $183 (23%) 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 $678. Return trip prices are from the SJO to BMI 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 BMI to SJO 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 48 minutes may not be realistic.


Flight Hacking BMI to SJO

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 BMI to SJO — but Champion Traveler does!

Hack #1: Boston, MA (BMI > BOS > SJO)

  • Price for both tickets: $619
  • Average savings: $97 (13.55%)

See BMI to BOS flights

Hack #2: Chicago, IL (BMI > ORD > SJO)

  • Price for both tickets: $620
  • Average savings: $96 (13.41%)

See BMI to ORD flights

Hack #3: Orlando, FL (BMI > MCO > SJO)

  • Price for both tickets: $621
  • Average savings: $95 (13.27%)

See BMI to MCO flights


Flight Questions Answered

Still have questions about flying from BMI to SJO? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Aeromexico, American, Avianca, COPA, Delta, United, and potentially more during busy seasons.

How far away is it from Juan Santamaria International Airport to Central Illinois Regional Airport?

The distance between the two airports is roughly 2125 miles or 3420 kilometers.

How long does it take to fly from BMI to SJO?

The real-world flight time for a nonstop BMI to SJO flight is about 4 hour 48 minutes.

How many flights go between Bloomington/Normal, IL and San Jose?

It depends on the day of the week and the date, but a typical day might have around 20 available flights from BMI to SJO.


Airport Location Info


Departing Airport

Origination code BMI
Origination airport name Central Illinois Regional Airport
City Bloomington/Normal, IL
Country the United States
Latitude 40.5
Longitude -88.9

Return Airport

Destination code SJO
Destination airport name Juan Santamaria International Airport
City San Jose
Country Costa Rica
Latitude 10
Longitude -84.2


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.