The cheapest times to fly from BTM to GSP are

  • January 8th to March 4th
  • April 16th to May 27th (except the week of May 7th)
  • October 15th 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 BTM to GSP is late January. Prices can be as high as $1197 for Sunday flights during late March, or as low as $327 for Tuesday flights around late January.


When to Fly to Greenville

Flying from Butte, MT (BTM) to Greer, SC (GSP) will usually cost between $487 to $1038 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 $553. Due to high demand the most expensive time to fly is late March, with an average price of $942. Planning your trip to low-cost times can easily save you $389 on economy flights and even more on first-class flights. Generally, any price below $726 can be considered a good price for a round-trip BTM to GSP flight.

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

BTM to GSP Flight Prices

Compared to other flights, the BTM to GSP flight is cheaper than the average and costs less than the average flight leaving from Butte. The average price per mile (for a direct flight) is $0.26, which is below average.


Flight Prices by Day of the Week

Tuesday 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 $269 (31%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $603. Return trip prices are from the GSP to BTM 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 BTM to GSP can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 8 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 BTM to GSP while comparing.

Destination alternative #1: Charlotte Douglas International Airport (CLT) in Charlotte, NC

  • 75 miles (121 km) away from GSP
  • Usually 28.93% less expensive than GSP
  • 1-layover flights available

See BTM to CLT flights


Flight Hacking BTM to GSP

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 BTM to GSP — but Champion Traveler does!

Hack #1: Denver, CO (BTM > DEN > GSP)

  • Price for both tickets: $705
  • Average savings: $21 (2.86%)

See BTM to DEN flights

Hack #2: Las Vegas, NV (BTM > LAS > GSP)

  • Price for both tickets: $715
  • Average savings: $11 (1.52%)

See BTM to LAS flights


Flight Questions Answered

Still have questions about flying from BTM to GSP? We’ve got answers.

Which airlines fly this route?

You can find 2 major airlines flying this route most often: Delta, United, and potentially more during busy seasons.

How far away is it from Greenville-Spartanburg International Airport to Bert Mooney Airport?

The distance between the two airports is roughly 1752 miles or 2820 kilometers.

How long does it take to fly from BTM to GSP?

The real-world flight time for a nonstop BTM to GSP flight is about 4 hour 8 minutes.

How many flights go between Butte, MT and Greer, SC?

It depends on the day of the week and the date, but a typical day might have around 14 available flights from BTM to GSP.


Airport Location Info


Departing Airport

Origination code BTM
Origination airport name Bert Mooney Airport
City Butte, MT
Country the United States
Latitude 46
Longitude -112.5

Return Airport

Destination code GSP
Destination airport name Greenville-Spartanburg International Airport
City Greer, SC
Country the United States
Latitude 34.9
Longitude -82.2


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.