The cheapest times to fly from RDU to IDA are

  • January 1st to February 11th
  • April 23rd to May 6th
  • August 6th to November 18th
  • early December

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 RDU to IDA is mid to late August. Prices can be as high as $1100 for Sunday flights during late December, or as low as $351 for Tuesday flights around mid to late August.


When to Fly to Idaho Falls

Flying from Raleigh/Durham, NC (RDU) to Idaho Falls, ID (IDA) will usually cost between $407 to $902 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late August with an average ticket price of $445. Due to high demand the most expensive time to fly is late December, with an average price of $825. Planning your trip to low-cost times can easily save you $380 on economy flights and even more on first-class flights. Generally, any price below $598 can be considered a good price for a round-trip RDU to IDA flight.

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

RDU to IDA Flight Prices

Compared to other flights, the RDU to IDA flight is cheaper than the average and costs less than the average flight leaving from Raleigh. The average price per mile (for a direct flight) is $0.2, 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 $248 (34%) 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 $490. Return trip prices are from the IDA to RDU 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 RDU to IDA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 17 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 RDU to IDA while comparing.

Destination alternative #1: Jackson Hole Airport (JAC) in Jackson, WY

  • 67 miles (108 km) away from IDA
  • Usually 11.96% less expensive than IDA
  • 1-layover flights available

See RDU to JAC flights

Destination alternative #2: Pocatello Regional Airport (PIH) in Pocatello, ID

  • 49 miles (79 km) away from IDA
  • Usually 8.53% less expensive than IDA
  • 1-layover flights available

See RDU to PIH flights

Destination alternative #3: Friedman Memorial Airport (SUN) in Sun Valley/Hailey/Ketchum, ID

  • 112 miles (180 km) away from IDA
  • Usually 7.44% less expensive than IDA
  • 1-layover flights available

See RDU to SUN flights


Flight Hacking RDU to IDA

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 RDU to IDA — but Champion Traveler does!

Hack #1: Salt Lake City, UT (RDU > SLC > IDA)

  • Price for both tickets: $578
  • Average savings: $21 (3.43%)

See RDU to SLC flights


Flight Questions Answered

Still have questions about flying from RDU to IDA? 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 Idaho Falls Regional Airport to Raleigh-Durham International Airport?

The distance between the two airports is roughly 1832 miles or 2948 kilometers.

How long does it take to fly from RDU to IDA?

The real-world flight time for a nonstop RDU to IDA flight is about 4 hour 17 minutes.

How many flights go between Raleigh/Durham, NC and Idaho Falls, ID?

It depends on the day of the week and the date, but a typical day might have around 61 available flights from RDU to IDA.


Airport Location Info


Departing Airport

Origination codeRDU
Origination airport nameRaleigh-Durham International Airport
CityRaleigh/Durham, NC
Countrythe United States

Return Airport

Destination codeIDA
Destination airport nameIdaho Falls Regional Airport
CityIdaho Falls, ID
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.