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Cheap Flights from Denver (DEN) to Idaho Falls (IDA)

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      Travellers and cabin class, 1 Adult, Economy
      United
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      Copa

      Compare Denver International to Idaho Falls flight deals

      Find the cheapest month or even day of the year to fly to Idaho Falls

      Book the best Idaho Falls fare with no extra fees

      Flight deals from Denver International to Idaho Falls

      Looking for a cheap last-minute deal or the best return flight from Denver International Airport to Idaho Falls Airport? If you want to travel next month, return fares start from $386. Find the lowest prices on one-way and return tickets right here.
      Idaho Falls.$386 per passenger.Departing Fri, 12 Feb, returning Fri, 26 Feb.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 12 Feb, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 26 Feb, arriving in Denver International.Price includes taxes and charges.From $386, select.
      Idaho Falls.$386 per passenger.Departing Fri, 9 Oct, returning Fri, 23 Oct.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 9 Oct, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 23 Oct, arriving in Denver International.Price includes taxes and charges.From $386, select.
      Idaho Falls.$386 per passenger.Departing Fri, 11 Dec, returning Fri, 25 Dec.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 11 Dec, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 25 Dec, arriving in Denver International.Price includes taxes and charges.From $386, select.
      Idaho Falls.$386 per passenger.Departing Fri, 9 Apr, returning Fri, 23 Apr.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 9 Apr, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 23 Apr, arriving in Denver International.Price includes taxes and charges.From $386, select.
      Idaho Falls.$387 per passenger.Departing Fri, 1 Jan, returning Fri, 8 Jan.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 1 Jan, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 8 Jan, arriving in Denver International.Price includes taxes and charges.From $387, select.
      Idaho Falls.$387 per passenger.Departing Sat, 31 Oct, returning Fri, 6 Nov.Return flight with United.Outbound direct flight with United departs from Denver International on Sat, 31 Oct, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 6 Nov, arriving in Denver International.Price includes taxes and charges.From $387, select.
      Idaho Falls.$387 per passenger.Departing Sat, 21 Nov, returning Sat, 28 Nov.Return flight with United.Outbound direct flight with United departs from Denver International on Sat, 21 Nov, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Sat, 28 Nov, arriving in Denver International.Price includes taxes and charges.From $387, select.
      Idaho Falls.$414 per passenger.Departing Tue, 24 Nov, returning Tue, 1 Dec.Return flight with United.Outbound direct flight with United departs from Denver International on Tue, 24 Nov, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Tue, 1 Dec, arriving in Denver International.Price includes taxes and charges.From $414, select.
      Idaho Falls.$414 per passenger.Departing Mon, 25 Jan, returning Mon, 1 Feb.Return flight with United.Outbound direct flight with United departs from Denver International on Mon, 25 Jan, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Mon, 1 Feb, arriving in Denver International.Price includes taxes and charges.From $414, select.
      Idaho Falls.$429 per passenger.Departing Fri, 12 Mar, returning Fri, 26 Mar.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 12 Mar, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 26 Mar, arriving in Denver International.Price includes taxes and charges.From $429, select.
      Idaho Falls.$435 per passenger.Departing Thu, 24 Sep, returning Thu, 15 Oct.Return flight with United.Outbound direct flight with United departs from Denver International on Thu, 24 Sep, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Thu, 15 Oct, arriving in Denver International.Price includes taxes and charges.From $435, select.
      Idaho Falls.$445 per passenger.Departing Fri, 14 May, returning Fri, 28 May.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 14 May, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 28 May, arriving in Denver International.Price includes taxes and charges.From $445, select.
      Idaho Falls.$482 per passenger.Departing Thu, 24 Sep, returning Mon, 28 Sep.Return flight with United.Outbound direct flight with United departs from Denver International on Thu, 24 Sep, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Mon, 28 Sep, arriving in Denver International.Price includes taxes and charges.From $482, select.
      Idaho Falls.$516 per passenger.Departing Fri, 11 Jun, returning Fri, 25 Jun.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 11 Jun, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Fri, 25 Jun, arriving in Denver International.Price includes taxes and charges.From $516, select.
      Idaho Falls.$850 per passenger.Departing Fri, 2 Jul, returning Mon, 5 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Fri, 2 Jul, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Mon, 5 Jul, arriving in Denver International.Price includes taxes and charges.From $850, select.
      Idaho Falls.$891 per passenger.Departing Fri, 2 Jul, returning Mon, 5 Jul.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 2 Jul, arriving in Idaho Falls.Inbound direct flight with United departs from Idaho Falls on Mon, 5 Jul, arriving in Denver International.Price includes taxes and charges.From $891, select.

      Find the cheapest month to fly from Denver International to Idaho Falls

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Idaho Falls flights are currently cheapest in October.
      Sep
      from $482
      Oct
      from $386
      Nov
      from $387
      Dec
      from $386
      Jan
      from $387
      Feb
      from $386
      Mar
      from $429
      Apr
      from $386
      May
      from $445
      Jun
      from $516
      Jul
      from $850
      Aug
      Find prices

      Direct flights from Denver International to Idaho Falls

      Copa
      SkyWest Airlines
      United

      Denver International to Idaho Falls: Alternative routes

      Compare routes from Denver International to Idaho Falls below. You may find an airport to fly into that's cheaper, faster, or easier than Idaho Falls.

      Idaho Falls

      4km from central Idaho Falls
      ClosestCheapest
      from $386
      Search flights

      Pocatello

      79km from central Idaho Falls
      from $660
      Search flights

      Denver to Idaho Falls: Flight information

      The things to know before you go.
      Cheapest flight found$386
      Cheapest month to flyDecember
      Average flight time1 hr, 48 mins
      Most popular airlineUnited
      Average flights per week60

      Finding cheap flights from Denver International to Idaho Falls: Frequently asked questions

      The best price we found for a return flight from Denver International to Idaho Falls is $386. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      1 hour and 48 minutes is the average flight time from Denver International to Idaho Falls.
      United, SkyWest Airlines and Copa fly direct from Denver International to Idaho Falls.
      As of September 2026, there are 60 flights per week flying from Denver International to Idaho Falls.
      The cheapest month to fly from Denver International to Idaho Falls is usually December.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Idaho Falls Airport on Friday, 11 December 2026.
      Yes – the average flight time is 1 hour and 48 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Idaho Falls but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, United offers the cheapest flight tickets to Idaho Falls.

      Flying from Denver International Airport (DEN) to Idaho Falls Airport (IDA): what you need to know

      • Book a direct flight from Denver International Airport to Idaho Falls Airport and you'll be travelling for an average of 1 hour 45 minutes.

      • Choose from 32 weekly Denver International Airport to Idaho Falls Airport flights. The 07:45 departure with United Airlines is the earliest available. United Airlines operates the last service of the day at 21:05.

      • Leave enough time to catch your DEN to IDA flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

      • Be prepared for longer queues during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a wise move.

      • United offers direct flights from Denver International Airport to Idaho Falls Airport. Book with this popular carrier, then get ready to see the sights in Idaho Falls — and maybe even more of the United States if your schedule allows.

      • The majority of travellers choose to travel with United on this route.

      • United stands out as the most punctual carrier for DEN to IDA flights, with 86.86% of services arriving on schedule.

      • Consider adding a stopover when booking your ticket from Denver International Airport to Idaho Falls Airport. Just deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Here's where you can stop between DEN and IDA:

        • Phoenix Sky Harbour Airport

        • Harry Reid International Airport

        • Salt Lake City Airport

      How to find the cheapest flights from Denver International Airport (DEN) to Idaho Falls Airport (IDA)

      • Currently, $249 is the lowest price we've found for a one-way Denver International Airport to Idaho Falls Airport flight. The best price for a return ticket is $386. Bear in mind that fares may change due to availability at the time of booking.

      • Book five months before your departure date. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from DEN to IDA.

      • October is the cheapest month for flights from Denver International Airport to Idaho Falls Airport. If you need to fly at a different time of year, the 'Whole month' tool will show you the lowest airfares for every month.

      • Picking up cheap flights from DEN to IDA is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a lower fare pops up.

      • Tailor your flights using filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Denver International Airport to Idaho Falls Airport.

      Handy information about Denver International Airport (DEN)

      • The address for DEN is 8500 Pena Boulevard.

      • Denver International Airport maintains a solid on-time performance, so you're unlikely to face delays. Departures from DEN arrive on schedule 80% of the time.

      • To reach Denver International Airport from central Denver, it'll take about 35 minutes if you're planning to drive. This depends on traffic though. It's approximately 40 kilometres from the airport to the city centre.

      • Expect a trip time of about 35 minutes when using public transport.

      • Booking a night at a hotel can take the stress out of getting to the airport on time. If you're looking for somewhere to stay before your flight from Denver International Airport to Idaho Falls Airport, have a look at Baymont by Wyndham Denver International Airport. It's a quick drive from DEN.

      Arriving at Idaho Falls Airport (IDA)

      • The last thing you want is a long journey to your hotel if you're getting in late on a Denver International Airport to Idaho Falls Airport flight. Stay at one of these accommodation options near IDA instead:

      • Go where the road takes you with a Idaho Falls Airport rental car. Book your wheels from Budget, Avis or Alamo and experience more of Idaho Falls and beyond.

      • Book your vehicle from Idaho Falls Airport a few weeks in advance to get the best deal. If you're travelling during a busy period, you may want to book even earlier.

      Getting from Idaho Falls Airport (IDA) to central Idaho Falls

      • You'll find IDA at 2140 North Skyline.

      • Idaho Falls Airport to central Idaho Falls has a drive time of about 10 minutes. It's approximately 8 kilometres away.

      • If you're travelling by public transport, expect a journey of roughly 30 minutes.

      When to fly to Idaho Falls Airport (IDA)

      • June is the busiest month for flights from Denver International Airport to Idaho Falls Airport. For smaller crowds, head to Idaho Falls in March.

      • Book your flight from Denver International Airport to Idaho Falls Airport for July if you'd like to visit Idaho Falls during its warmest month. You can expect temperatures of between 9ºC (48ºF) and 35ºC (95ºF).

      • If you'd rather travel in cooler conditions, look for a cheap ticket from DEN to IDA in January. Average temperatures are between -15ºC (5ºF) and 1ºC (34ºF) then.

      Explore more of the United States

      • You've done Idaho Falls, now it's time to explore other parts of the United States. Journey about 306 kilometres south to Salt Lake City to check off its top sights. From Salt Lake Utah Temple to Temple Square and Salt Lake City Tabernacle, there's plenty to keep you busy.

      • Boise is another sought-after destination in the United States and is around 338 kilometres west of Idaho Falls. No journey is complete without visiting Cathedral Of The Rockies, Boise Depot and St. John's Cathedral.

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      Plan the rest of your trip from Denver to Idaho Falls

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.