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

Book the best Idaho Falls fare with no extra fees

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.

Idaho Falls.SAR 787 per passenger.Departing Tue, 22 Apr.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Baltimore Washington International on Tue, 22 Apr, arriving in Idaho Falls.Price includes taxes and charges.From SAR 787, select.

Idaho Falls.SAR 821 per passenger.Departing Mon, 18 Aug.One-way flight with United.Outbound indirect flight with United, departs from Washington Ronald Reagan on Mon, 18 Aug, arriving in Idaho Falls.Price includes taxes and charges.From SAR 821, select.

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.

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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 found	SAR 787
Cheapest month to fly	April

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

How much are return flights from Washington D.C. to Idaho Falls?

The best price we found for a return flight from Washington D.C. to Idaho Falls is SAR 1,344. 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.

Which airlines fly direct from Washington D.C. to Idaho Falls?

Currently, there are no airlines that fly direct from Washington D.C. to Idaho Falls. But we found flights with one stop from SAR 1,344.

How many flights are there a week from Washington D.C. to Idaho Falls?

As of March 2025, there are no flights flying from Washington D.C. to Idaho Falls.

When is the cheapest time to fly from Washington D.C. to Idaho Falls?

The cheapest month to fly from Washington D.C. to Idaho Falls is usually March 2025.

Which upcoming date is cheapest to fly from Washington D.C. to Idaho Falls Airport on?

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.

Can I get a direct flight from Washington D.C. to Idaho Falls Airport?

No airlines currently offer direct flights between Washington D.C. and Idaho Falls Airport. Most routes have one or more stops.

How can I find the best flight deal to Idaho Falls?

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.

When is the best time to book flights to Idaho Falls?

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.

Which is the cheapest airline to fly from Washington D.C. to Idaho Falls with?

The cheapest airline that flies to Idaho Falls is Delta .

How to find cheap flights to Idaho Falls from Washington D.C.

Looking for cheap tickets from Washington D.C. to Idaho Falls? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Washington D.C. to Idaho Falls. And with us there are no hidden fees - what you see is what you pay.
Compare flight deals to Idaho Falls from Washington D.C. from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
Flex your dates to find the best Washington D.C.-Idaho Falls ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Idaho Falls from Washington D.C..
Set up a Price Alert. You can easily track the fare of your cheap Washington D.C.-Idaho Falls flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
Fly without stops. Only interested in direct flights between Washington D.C. and Idaho Falls? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
Find the cheapest Business class flights from Washington D.C. and Idaho Falls. We scour the internet for the best Business, Premium Economy and First Class flight fares to Idaho Falls, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
Include nearby airports in your search. Widen your search for Washington D.C. to Idaho Falls flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

Combine your flight to Idaho Falls from Washington D.C. with hotels and car hire

Once you've secured your cheap flight ticket from Washington D.C. to Idaho Falls, discover the best prices and exclusive rates for hotels in Idaho Falls or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.