Cheap Flights from Washington D.C. to Idaho Falls

Compare Washington D.C. to Idaho Falls flight deals

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

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Flight deals from Washington D.C. to Idaho Falls

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Idaho Falls? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington D.C. to Idaho Falls

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Idaho Falls flights are currently cheapest in August.

Washington D.C. to Idaho Falls: Alternative routes

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

Washington D.C. to Idaho Falls: Flight information

The things to know before you go.
Cheapest flight foundRs55,628
Cheapest month to flyAugust

Finding cheap flights from Washington D.C. to Idaho Falls: Frequently asked questions

The best price we found for a return flight from Washington D.C. to Idaho Falls is Rs113,818. 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.
Currently, there are no airlines that fly direct from Washington D.C. to Idaho Falls. But we found flights with one stop from Rs113,818.
As of July 2025, there are no flights flying from Washington D.C. to Idaho Falls.
The cheapest month to fly from Washington D.C. to Idaho Falls is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Idaho Falls Airport on Saturday, 2 August 2025.
No airlines currently offer direct flights between Washington D.C. and Idaho Falls Airport. Most routes have one or more stops.
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.
The cheapest airline that flies to Idaho Falls is United .

Flying from Washington DC to Idaho Falls Regional Airport (IDA): What you need to know

  • Your travel plans take shape at one of Washington DC's main airports, Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD). Explore the options for booking a flight from Washington DC to Idaho Falls Regional Airport (IDA) setting off from either of these.

  • The timezone in Idaho Falls is UTC-6, which is two hours behind Washington DC. Idaho Falls Regional Airport is located in Idaho Falls.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to board your flight from Washington DC to IDA.

  • With more travellers during high season, it's a good idea to get to your terminal even earlier. Two hours for domestic flights and up to four for international journeys will help you stay ahead of the crowds.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Located around 8 kilometres from central Washington DC, DCA can be reached in about 15 minutes by car, depending on traffic. The journey on public transport is roughly 45 minutes.

  • Want a leisurely start to your journey? Stay near Ronald Reagan National Airport. Whether you've booked an early flight from Washington DC to Idaho Falls Regional Airport or want to avoid feeling rushed, these hotels are the ideal choice:

  • Of the departures from Ronald Reagan National Airport, 76.44% arrive as scheduled at their destination.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • From the centre of Washington DC, BWI is around 48 kilometres away. It'll take you roughly 50 minutes to get there by car and 1 hour 30 minutes or so if you take public transport.

  • Rest a little longer, move a little slower, and still make your Washington DC to Idaho Falls Regional Airport flight with plenty of time to spare. These hotels near Baltimore/Wash International Thurgood Marshall Airport make getting to the terminal a breeze if you're flying out early:

  • Airports have an on-time performance rating that tracks how often flights arrive as expected. At BWI, that figure is 77.13%.

About Idaho Falls Regional Airport (IDA)

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

  • The centre of Idaho Falls is about 3 kilometres from Idaho Falls Regional Airport. Journey times by car hire or cab will vary based on time of day and traffic conditions, so do some research before your trip.

  • When travelling by public transport, expect a journey time of roughly 1 hour.

How to find the cheapest flights from Washington DC to Idaho Falls Regional Airport (IDA)

  • Rs55,628 is currently the lowest price for a one-way ticket from Washington DC to Idaho Falls Regional Airport. Return flights start at Rs113,818. These prices may change depending on availability.

  • To find cheap flights from Washington DC to IDA, book in advance. Airlines tend to offer lower fares when flights first go on sale.

  • The 'Whole month' tool will show you the cheapest Washington DC to Idaho Falls Regional Airport tickets across every month. It's an easy way to snap up a bargain if your travel dates are flexible.

  • Save time looking for cheap flight tickets from Washington DC to IDA by creating a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.

  • Filters make it easier to land a deal on your flight from Washington DC to Idaho Falls Regional Airport. Pick the airlines, flight times and stops that match your plans. Then sort the results by 'Cheapest' to zero in on the cheapest fare fast.

The best time to fly from Washington DC to Idaho Falls Regional Airport (IDA)

  • Think about your travel style when deciding the best time to fly. February is the quietest month to visit Idaho Falls. July is when most people book flights from Washington DC to Idaho Falls Regional Airport (IDA), which may be ideal if you're after more action.

  • The warmest month in Idaho Falls is July, with temperatures ranging between 11ºC and 35ºC. Lock in your Washington DC to IDA flight ticket then if that's your definition of good weather.

  • January sees temperatures of between -15ºC and 1ºC. Look for cheap tickets from Washington DC to Idaho Falls Regional Airport around that time if you like cooler conditions.

More about Idaho Falls

  • Once you've booked your flight from Washington DC to Idaho Falls Regional Airport, find a hotel that's got location and comfort covered. Make one of these options your base for exploring Idaho Falls:

  • You'll find loads of things to do in Idaho Falls when you're ready to sightsee. Kick off your itinerary at Idaho Falls River Walk followed by Shadow's Park and Snake River Landing.

Explore more of the United States

  • Ogden is just one of the many places in the United States waiting to be explored once you've taken in the sights of Idaho Falls. Around 257 kilometres away to the south, check out popular attractions including Snowbasin Resort, Dinosaur Park and Museum and Mt. Ogden Park-East Field (#4080).

  • If you want to check out another well-known destination in the United States, consider Layton, roughly 274 kilometres south of Idaho Falls. Adams Canyon Trail, SeaQuest Utah and SeaQuest Interactive Aquarium are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.