$131 Find Cheap Flights from Idaho Falls to District of Columbia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to District of Columbia departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to District of Columbia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to District of Columbia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to District of Columbia, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Idaho Falls to District of Columbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to District of Columbia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Idaho Falls to District of Columbia

Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
2:40 pm - 11:22 pm
IDA
-
IAD
6h 42m1 stop
United Airlines Logo
8:15 am - 1:30 pm
IAD
-
IDA
7h 15m1 stop
$341United Airlines
Mon, Jan 26 - Sat, Jan 31
United Airlines Logo
2:40 pm - 11:22 pm
IDA
-
IAD
6h 42m1 stop
United Airlines Logo
8:15 am - 3:31 pm
IAD
-
IDA
9h 16m1 stop
$402United Airlines
Mon, Apr 13 - Fri, Apr 17
Alaska Airlines Logo
4:00 pm - 5:49 am
IDA
-
IAD
11h 49m1 stop
Alaska Airlines Logo
7:00 am - 3:20 pm
IAD
-
IDA
10h 20m1 stop
$414Alaska Airlines
Thu, Feb 12 - Sat, Feb 21
American Airlines Logo
2:02 pm - 10:48 pm
IDA
-
IAD
6h 46m1 stop
American Airlines Logo
9:11 am - 11:07 pm
IAD
-
IDA
15h 56m2 stops
$432American Airlines
Mon, Jan 26 - Fri, Jan 30
Alaska Airlines Logo
6:58 pm - 4:26 pm
IDA
-
IAD
19h 28m1 stop
Alaska Airlines Logo
5:26 pm - 10:59 pm
IAD
-
IDA
31h 33m2 stops
$433Alaska Airlines
Mon, Jan 26 - Fri, Jan 30
United Airlines Logo
2:40 pm - 11:22 pm
IDA
-
IAD
6h 42m1 stop
United Airlines Logo
8:15 am - 1:30 pm
IAD
-
IDA
7h 15m1 stop
$434United Airlines
Mon, Mar 30 - Thu, Apr 2
United Airlines Logo
2:35 pm - 11:34 pm
IDA
-
IAD
6h 59m1 stop
United Airlines Logo
8:15 am - 1:24 pm
IAD
-
IDA
7h 09m1 stop
$437United Airlines
Thu, Feb 12 - Sat, Feb 21
American Airlines Logo
2:02 pm - 11:00 pm
IDA
-
DCA
6h 58m1 stop
American Airlines Logo
11:37 am - 11:07 pm
DCA
-
IDA
13h 30m2 stops
$439American Airlines
Thu, Feb 12 - Sat, Feb 21
Delta Logo
5:25 am - 4:00 pm
IDA
-
DCA
8h 35m1 stop
Delta Logo
5:10 pm - 10:21 pm
DCA
-
IDA
7h 11m1 stop
$483Delta
Tue, Mar 24 - Tue, Mar 31
Delta Logo
6:59 pm - 9:10 am
IDA
-
DCA
12h 11m2 stops
Delta Logo
5:12 pm - 10:20 pm
DCA
-
IDA
7h 08m1 stop
$522Delta
Booking Insights

KAYAK's insights & trends for Idaho Falls to District of Columbia flights

Get data-powered insights and trends into flights from Idaho Falls to District of Columbia to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Idaho Falls to District of Columbia?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Idaho Falls to District of Columbia departing in January.

What’s the cheapest day of the week to fly from Idaho Falls to District of Columbia?

The average price of all round-trip flights from Idaho Falls to District of Columbia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to District of Columbia on a Wednesday and more expensive on a Saturday. On your return trip to Idaho Falls, you should consider flying back on a Saturday, and avoid Mondays for better deals.

Good to know

Cheapest flight$131
Flight from Idaho Falls to Reagan Washington National Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Idaho Falls to District of Columbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho Falls to District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to District of Columbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Idaho Falls to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to District of Columbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Idaho Falls to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the afternoon, when round-trip flights cost $671 on average. The most expensive time of day to fly to District of Columbia is generally at night, which is peak travel time and where the average cost of a ticket is $737.

Reviews of the top airlines flying from Idaho Falls to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to District of Columbia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to District of Columbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9091 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

The food is terrible. The same pasta or chicken with bad taste and presentation

6.0 GoodClaudia, Dec 2025
GUA - IAD
Read more United Airlines reviews

The food is terrible. The same pasta or chicken with bad taste and presentation

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

The boarding crew was incredibly helpful getting me on an earlier flight

Everything you need to know for your flight from Idaho Falls to District of Columbia

Information on your arrival and departure airports