Cheap flights from Washington, D.C. Dulles Intl Airport to Idaho Falls from $381
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. Dulles Intl Airport to Idaho Falls departing on 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
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. Dulles Intl Airport to Idaho Falls
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Delta flights from Washington, D.C. Dulles Intl Airport to Idaho Falls
Our best Delta deals on Washington, D.C. Dulles Intl Airport to Idaho Falls flight tickets
United Airlines flights from Washington, D.C. Dulles Intl Airport to Idaho Falls
Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Idaho Falls flight tickets
See travel insights to Idaho Falls from
How to get the cheapest flight ticket from Washington, D.C. Dulles Intl 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. Dulles Intl 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. Dulles Intl to Idaho Falls Fanning Field?
United Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Idaho Falls Fanning Field
What airlines fly to Idaho Falls?
United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Idaho Falls from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 66% 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. Dulles Intl Airport to Idaho Falls
Cheap Washington, D.C. Dulles Intl Airport to Idaho Falls (IAD to IDA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Idaho Falls
How far is Washington, D.C. Dulles Intl to Idaho Falls Fanning Field by plane?
There are 1810.0 mi between Washington, D.C. Dulles Intl and Idaho Falls Fanning Field. A reasonable flight in good conditions will take 7h 04m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport?
As of April 2025, there is 1 operator available to choose from for flights from Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Idaho Falls?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Idaho Falls, the leading airline is United Airlines, making up 100% of the total bookings.
Best airlines flying from Washington, D.C. Dulles Intl Airport to Idaho Falls
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Idaho Falls with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $444 | Free Cancellation | Rating 7.4 8,667 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?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Idaho Falls. momondo saves you time and could save you money on your trip.
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?
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?
Price alerts on flights to Idaho Falls from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.