Cheap flights from Washington, D.C. Reagan-National Airport to Idaho Falls from $297
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Idaho Falls departing on 3/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Washington, D.C. Reagan-National Airport to Idaho Falls
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Delta flights from Washington, D.C. Reagan-National Airport to Idaho Falls
Our best Delta deals on Washington, D.C. Reagan-National Airport to Idaho Falls flight tickets
Alaska Airlines flights from Washington, D.C. Reagan-National Airport to Idaho Falls
Our best Alaska Airlines deals on Washington, D.C. Reagan-National Airport to Idaho Falls flight tickets
See travel insights to Idaho Falls from
How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Idaho Falls
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Idaho Falls?
Our data shows that Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $562. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $870.
What is the cheapest time of day to depart on your flight to Idaho Falls?
Our most recent data shows that the best time of day to fly to Idaho Falls is in the morning. Flights from Washington, D.C. Reagan-National Airport to Idaho Falls during this time can be as low as $716. Try not to purchase tickets in the afternoon because they tend to be around $758. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest airline that flies from Washington, D.C. Reagan-National to Idaho Falls Fanning Field?
Alaska Airlines, Hawaiian Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to Idaho Falls Fanning Field
What airlines fly to Idaho Falls?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Idaho Falls from Washington, D.C. Reagan-National Airport according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Idaho Falls. Keep in mind that there are 3 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.
When to book flights from Washington, D.C. Reagan-National Airport to Idaho Falls
Cheap Washington, D.C. Reagan-National Airport to Idaho Falls (DCA to IDA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Idaho Falls
How far is Washington, D.C. Reagan-National to Idaho Falls Fanning Field by plane?
Washington, D.C. Reagan-National and Idaho Falls Fanning Field are 1833.0 mi apart from one another. Flights usually cover this in 6h 53m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Idaho Falls Fanning Field Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to Idaho Falls Fanning Field Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Idaho Falls Fanning Field Airport?
As of February 2025, there are 2 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Idaho Falls Fanning Field Airport.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Idaho Falls Fanning Field Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Idaho Falls Fanning Field Airport.
What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?
The necessary travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. Reagan-National Airport to Idaho Falls?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Reagan-National Airport to Idaho Falls is United Airlines (56% of total bookings). The next most popular airline is American Airlines (44%).
Best airlines flying from Washington, D.C. Reagan-National Airport to Idaho Falls
Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Idaho Falls with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $524 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $736 | Free Cancellation | Rating 7.4 8,765 reviews |
Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Idaho Falls?
It is quick and easy to find Washington, D.C. to Idaho Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho Falls that suits you.
Can I find flights from Washington, D.C. to Idaho Falls with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Washington, D.C. to Idaho Falls flights to just show those with flexible booking policies.
How can momondo help me find flights from Washington, D.C. to Idaho Falls?
Once you have performed a search for Washington, D.C. to Idaho Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Washington, D.C. to Idaho Falls right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Washington, D.C. to Idaho Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.