The cheapest times to fly from IND to SDY are

  • January 1st to March 4th
  • April 9th to May 6th
  • August 6th to November 18th (except the weeks of September 3rd, October 8th, and 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 IND to SDY is late January. Prices can be as high as $831 for Sunday flights during late June, or as low as $372 for Wednesday flights around late January.


When to Fly to Sidney

Flying from Indianapolis, IN (IND) to Sidney, MT (SDY) will usually cost between $524 to $768 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $550. Due to high demand the most expensive time to fly is late June, with an average price of $747. Planning your trip to low-cost times can easily save you $197 on economy flights and even more on first-class flights. Generally, any price below $620 can be considered a good price for a round-trip IND to SDY flight.

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

IND to SDY Flight Prices

Compared to other flights, the IND to SDY flight is cheaper than the average and costs less than the average flight leaving from Indianapolis. The average price per mile (for a direct flight) is $0.37, which is a bit above average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to SDY, and Tuesday the cheapest day to fly back into IND. 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 $121 (18%) 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 $556. Return trip prices are from the SDY to IND 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 IND to SDY can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 2 hour 52 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 IND to SDY while comparing.

Destination alternative #1: Minot International Airport (MOT) in Minot, ND

  • 140 miles (225 km) away from SDY
  • Usually 35.16% less expensive than SDY
  • 1-layover flights available

See IND to MOT flights


Flight Hacking IND to SDY

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 IND to SDY — but Champion Traveler does!

Hack #1: Billings, MT (IND > BIL > SDY)

  • Price for both tickets: $508
  • Average savings: $112 (18.06%)

See IND to BIL flights


Flight Questions Answered

Still have questions about flying from IND to SDY? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, American, Cape Air, Delta, United, and potentially more during busy seasons.

How far away is it from Sidney Richland Regional Airport to Indianapolis International Airport?

The distance between the two airports is roughly 1047 miles or 1685 kilometers.

How long does it take to fly from IND to SDY?

The real-world flight time for a nonstop IND to SDY flight is about 2 hour 52 minutes.

How many flights go between Indianapolis, IN and Sidney, MT?

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


Airport Location Info


Departing Airport

Origination code IND
Origination airport name Indianapolis International Airport
City Indianapolis, IN
Country the United States
Latitude 39.7
Longitude -86.3

Return Airport

Destination code SDY
Destination airport name Sidney Richland Regional Airport
City Sidney, MT
Country the United States
Latitude 47.7
Longitude -104.2


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.