The cheapest times to fly from BOI to INL are

  • August 13th to November 18th
  • early December
  • December 24th to March 4th

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 BOI to INL is late January. Prices can be as high as $1014 for Sunday flights during early August, or as low as $300 for Tuesday flights around late January.


When to Fly to International Falls

Flying from Boise, ID (BOI) to International Falls, MN (INL) will usually cost between $317 to $724 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 $346. Due to high demand the most expensive time to fly is early August, with an average price of $774. Planning your trip to low-cost times can easily save you $428 on economy flights and even more on first-class flights. Generally, any price below $502 can be considered a good price for a round-trip BOI to INL flight.

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

BOI to INL Flight Prices

Compared to other flights, the BOI to INL flight is cheaper than the average and costs less than the average flight leaving from Boise. The average price per mile (for a direct flight) is $0.27, 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 $140 (24%) 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 $440. Return trip prices are from the INL to BOI 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 BOI to INL can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 2 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 BOI to INL while comparing.

Destination alternative #1: Duluth International Airport (DLH) in Duluth, MN

  • 132 miles (212 km) away from INL
  • Usually 16.33% less expensive than INL
  • 1-layover flights available

See BOI to DLH flights

Destination alternative #2: Bemidji Regional Airport (BJI) in Bemidji, MN

  • 102 miles (164 km) away from INL
  • Usually 14.64% less expensive than INL
  • 1-layover flights available

See BOI to BJI flights


Flight Questions Answered

Still have questions about flying from BOI to INL? We’ve got answers.

Which airlines fly this route?

You can find 3 major airlines flying this route most often: Alaska, Delta, United, and potentially more during busy seasons.

How far away is it from Falls International Einarson Field Airport to Boise Air Terminal Airport?

The distance between the two airports is roughly 1142 miles or 1838 kilometers.

How long does it take to fly from BOI to INL?

The real-world flight time for a nonstop BOI to INL flight is about 3 hour 2 minutes.

How many flights go between Boise, ID and International Falls, MN?

It depends on the day of the week and the date, but a typical day might have around 28 available flights from BOI to INL.


Airport Location Info


Departing Airport

Origination codeBOI
Origination airport nameBoise Air Terminal Airport
CityBoise, ID
Countrythe United States

Return Airport

Destination codeINL
Destination airport nameFalls International Einarson Field Airport
CityInternational Falls, MN
Countrythe United States


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.