The cheapest times to fly from STM to ORD are

  • January 29th to February 11th
  • March 5th to June 10th
  • October 8th to November 25th (except the week of October 15th)

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 STM to ORD is late May. Prices can be as high as $5539 for Wednesday flights during early to mid December, or as low as $1294 for Saturday flights around late May.


When to Fly to Chicago

Flying from Santarem (STM) to Chicago, IL (ORD) will usually cost between $1471 to $2965 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 $1473. Due to high demand the most expensive time to fly is early to mid December, with an average price of $3186. Planning your trip to low-cost times can easily save you $1713 on economy flights and even more on first-class flights. Generally, any price below $1639 can be considered a good price for a round-trip STM to ORD flight.

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

STM to ORD Flight Prices

Compared to other flights, the STM to ORD flight is more expensive than the average and costs about as much as the average flight leaving from Santarém. The average price per mile (for a direct flight) is $0.27, which is below average.


Flight Prices by Day of the Week

Saturday is usually the cheapest day to fly to ORD, and Sunday the cheapest day to fly back into STM. Wednesdays are the most expensive days to fly to Chicago, and Saturdays are the most expensive days to return to Santarém. Selecting flights on the least expensive days could save you up to $252 (12%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Saturday and returning a week later will cost an average of $1841. Return trip prices are from the ORD to STM 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 STM to ORD can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 7 hour 39 minutes may not be realistic.


Flight Hacking STM to ORD

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 STM to ORD — but Champion Traveler does!

Hack #1: New York, NY (STM > JFK > ORD)

  • Price for both tickets: $976
  • Average savings: $663 (40.45%)

See STM to MAO flights

Hack #2: Manaus (STM > MAO > ORD)

  • Price for both tickets: $1147
  • Average savings: $493 (30.05%)

See STM to JFK flights

Hack #3: Newark, NJ (STM > EWR > ORD)

  • Price for both tickets: $1148
  • Average savings: $491 (29.96%)

See STM to EWR flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 7 major airlines flying this route most often: American, Azul, COPA, Delta, LATAM, SAS, United, and potentially more during busy seasons.

How far away is it from Chicago O’Hare International Airport to Eduardo Gomes Airport?

The distance between the two airports is roughly 3706 miles or 5964 kilometers.

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

The real-world flight time for a nonstop STM to ORD flight is about 7 hour 39 minutes.

How many flights go between Santarem and Chicago, IL?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from STM to ORD.


Airport Location Info


Departing Airport

Origination code STM
Origination airport name Eduardo Gomes Airport
City Santarem
Country Brazil
Latitude -2.5
Longitude -54.7

Return Airport

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


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.