Cheap Flights from Washington D.C. to Idaho Falls

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Compare Washington D.C. to Idaho Falls flight deals

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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 April.

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 foundR 3,821
Cheapest month to flyApril

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 R 6,527. 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 R 6,527.
As of March 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 March 2025.
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, 26 April 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 Delta .

Travelling from Washington DC to Idaho Falls Regional Airport (IDA): what you need to know

  • Begin planning your trip by checking out the ideal departure point for your flight from Washington DC to Idaho Falls Regional Airport (IDA). Explore the options for departing from Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD), two of the city's main airports.

  • Idaho Falls Regional Airport is located in Idaho Falls. The city operates in the UTC-6 timezone and is 2 hours behind Washington DC.

  • Arrive at the airport on time so you don't miss your flight from Washington DC to IDA. Be there at least two hours ahead for international flights and an hour early for domestic departures to skip the mad dash to your gate.

  • Getting on a plane during a peak time like July? High seasons (like Thanksgiving, Christmas/New Year and spring break) can add another hour at check-in and security. Play things extra safe and arrive up to four hours before an international flight and two hours before a domestic departure.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • From the centre of Washington DC, DCA is around 8 kilometres away. Check the official airport website or use navigation apps to find the best way to get there.

  • Catching an early flight from Washington DC to Idaho Falls Regional Airport? Avoid the stress of rushing to the terminal (and enjoy a little extra shut-eye) by picking one of these stays near Ronald Reagan National Airport:

Washington Dulles International Airport (IAD)

About Idaho Falls Regional Airport (IDA)

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

  • From Idaho Falls Regional Airport, Idaho Falls is approximately 5 kilometres away. It takes around 9 minutes to get to the centre driving.

  • If you're travelling on public transport, expect a journey time of roughly 59 minutes.

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

  • Pick up a one-way ticket from Washington DC to Idaho Falls Regional Airport from R 3,821 or travel return from just R 6,527. Fares listed are subject to change and may differ when you make your booking.

  • To pick up cheap tickets from Washington DC to IDA, book as early as possible. Airlines usually offer lower prices when flights are first made available.

  • Use the 'Whole month' search tool to compare the prices of tickets from Washington DC to Idaho Falls Regional Airport across the month. We've highlighted the lowest fares in green, so you can easily choose a flight that fits your budget.

  • Sign into your online account or use the app to create a Price Alert. We'll get in touch right away if there's a deal you won't want to miss. It's simple to do, and it'll save you from searching for cheap tickets from Washington DC to IDA every day.

  • Personalise your trip using filters. Adjust the duration, number of stops, and arrival and departure times to find the right flight from Washington DC to Idaho Falls Regional Airport. You can also sort the results to see the 'Fastest,' 'Best' or 'Cheapest' options first.

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

  • July is the most popular month for flights from Washington DC to Idaho Falls Regional Airport. To skip the crowds, plan your trip to Idaho Falls in February when things are quieter.

  • Think about the type of weather that'll suit your plans for Idaho Falls. The warmest month is July. Lock in your flights from Washington DC to IDA during then and you can expect temperatures of between 11ºC and 35ºC.

  • If you want to travel in cooler conditions, lock in a cheap flight from Washington DC to Idaho Falls Regional Airport in January when temperatures average between -15ºC and 1ºC.

More about Idaho Falls

  • Once you've booked your flight from Washington DC to Idaho Falls Regional Airport, think about where you want to stay in this city. Make one of these options your base for exploring Idaho Falls:

  • All great adventures should include a little sightseeing. Idaho Falls River Walk, Museum of Idaho and Idaho Falls Zoo at Tautphaus Park are must-visits when exploring Idaho Falls.

Complete your Idaho Falls trip with a car rental

  • Finding you a cheap flight from Washington DC to Idaho Falls Regional Airport isn't the only trick up our sleeve. Check out our car rentals in Idaho Falls and have more freedom to explore. We search for deals from trusted car rental companies and put them all in one place. Instantly compare rates and then book with no fees.

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