Cheap flights from Washington, D.C. to Idaho Falls from $216
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. to Idaho Falls departing on 5/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Alaska Airlines flights from Washington, D.C. to Idaho Falls
Our best Alaska Airlines deals on Washington, D.C. to Idaho Falls flight tickets
Delta flights from Washington, D.C. to Idaho Falls
Our best Delta deals on Washington, D.C. to Idaho Falls flight tickets
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How to get the cheapest flight ticket from Washington, D.C. 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 typical price of a round-trip flight between Washington, D.C. and Idaho Falls?
What is the cheapest month to fly to Idaho Falls?
If you aren’t able to travel to Idaho Falls during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $530.
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. 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.
How have Washington, D.C. to Idaho Falls flight prices changed over time?
What is the cheapest airline that flies from Washington, D.C. to Idaho Falls Fanning Field?
Alaska Airlines, United Airlines, and Hawaiian Airlines are the most popular carriers operating from Washington, D.C. to Idaho Falls Fanning Field
What airlines fly to Idaho Falls?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Idaho Falls from Washington, D.C. according to our data. United 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. to Idaho Falls
Cheap Washington, D.C. to Idaho Falls (WAS to IDA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Idaho Falls
How far is Washington, D.C. to Idaho Falls Fanning Field by plane?
A flight from Washington, D.C. to Idaho Falls Fanning Field will travel around 1831.8 mi. Flights usually cover this in 6h 20m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Washington, D.C. to Idaho Falls Fanning Field Airport?
Prices for flights from Washington, D.C. to Idaho Falls Fanning Field Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Idaho Falls Fanning Field Airport?
There are 3 operators available for flights from Washington, D.C. to Idaho Falls Fanning Field Airport as of April 2025.
How old do you have to be to fly from Washington, D.C. to Idaho Falls Fanning Field Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Idaho Falls Fanning Field Airport.
What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?
The travel and health documents you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. to Idaho Falls?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to Idaho Falls is United Airlines (48% of total bookings). The next most popular airlines are American Airlines (23%), Delta (19%), and Alaska Airlines (10%).
Best airlines flying from Washington, D.C. to Idaho Falls
Compare and see reviews for airlines that fly from Washington, D.C. to Idaho Falls with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $334 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $334 | Free Cancellation | Rating 8.0 7,929 reviews | |||
| PriceFrom $408 | Free Cancellation | Rating 7.4 8,696 reviews |
Traveling to a place near Idaho Falls?
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Why should I use momondo to find a flight deal from Washington, D.C. to Idaho Falls?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Idaho Falls. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Washington, D.C. to Idaho Falls with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Idaho Falls from Washington, D.C. with this policy.
How can momondo help me find flights from Washington, D.C. to Idaho Falls?
momondo helps you find the best flight between Washington, D.C. and Idaho Falls by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Washington, D.C. to Idaho Falls right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Washington, D.C. to Idaho Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.