Cheap Flights from Rapid City to Idaho from £207 Return

Flight deals from Rapid City to Idaho

Looking for cheap tickets from Rapid City to Idaho, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Boise.£207 per passenger.Departing Thu, 5 Feb, returning Mon, 9 Feb.Return flight with United.Outbound indirect flight with United, departs from Rapid City Regional on Thu, 5 Feb, arriving in Boise.Inbound indirect flight with United, departs from Boise on Mon, 9 Feb, arriving in Rapid City Regional.Price includes taxes and charges.From £207, select.

Idaho Falls.£227 per passenger.Departing Thu, 12 Mar, returning Sun, 15 Mar.Return flight with United.Outbound indirect flight with United, departs from Rapid City Regional on Thu, 12 Mar, arriving in Idaho Falls.Inbound indirect flight with United, departs from Idaho Falls on Sun, 15 Mar, arriving in Rapid City Regional.Price includes taxes and charges.From £227, select.

Hailey.£618 per passenger.Departing Sat, 19 Sep, returning Sat, 26 Sep.Return flight with United.Outbound indirect flight with United, departs from Rapid City Regional on Sat, 19 Sep, arriving in Hailey.Inbound indirect flight with United, departs from Hailey on Sat, 26 Sep, arriving in Rapid City Regional.Price includes taxes and charges.From £618, select.

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Flying from Rapid City to Idaho

Arm yourself with these facts on the fly.

Cheapest flight found	£207
Cheapest month to fly	February
Cheapest airport to fly from	Rapid City Regional

How to find cheap flights from Rapid City to Idaho

Ready to join the other savvy travellers booking the cheapest one-way and return flights to Idaho? Here are a few tips to help you do it the smart way.

Fly from Rapid City Regional into Boise

At the moment, the lowest priced flight tickets to Idaho are from Rapid City Regional Airport to Boise Airport.

Fly in February

We crunched the flight calendar and found the cheapest time to fly from Rapid City to Idaho is currently February.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Rapid City to anywhere you choose in Idaho.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Rapid City to Idaho go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Idaho to Idaho flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Rapid City to Idaho flight price?

We looked at all of the upcoming return flights from Rapid City to Idaho we could find over the next 12 months. It looks like £207 is the best price. This is good, compared to the average Idaho ticket price of £351.

What is the cheapest month to fly from Rapid City to Idaho?

The cheapest month to fly from Rapid City to Idaho Falls Airport is currently March. The cheapest month to fly from Rapid City to Boise Airport is usually February. And the cheapest month to fly from Rapid City to Hailey Airport is usually September.

Which upcoming date is cheapest to fly from Rapid City to Idaho on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Rapid City to Idaho on Thursday, 5 February 2026.