$208 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 4/11. 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
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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

Tue, Feb 10 - Sat, Feb 14
United Airlines Logo
2:40 pm - 11:22 pm
IDA
-
IAD
6h 42m
1 stop
United Airlines Logo
3:58 pm - 8:58 pm
IAD
-
IDA
7h 00m
1 stop
$326United Airlines
Thu, Jan 29 - Mon, Feb 2
American Airlines Logo
7:20 am - 10:04 pm
IDA
-
DCA
12h 44m
2 stops
American Airlines Logo
12:10 pm - 10:36 pm
DCA
-
IDA
12h 26m
2 stops
$370American Airlines
Fri, Feb 13 - Wed, Feb 18
Delta Logo
6:35 pm - 4:27 pm
IDA
-
DCA
19h 52m
2 stops
Delta Logo
5:10 pm - 10:21 pm
DCA
-
IDA
7h 11m
1 stop
$390Delta
Fri, Feb 13 - Tue, Feb 17
Delta Logo
6:35 pm - 4:27 pm
IDA
-
DCA
19h 52m
2 stops
Delta Logo
12:59 pm - 10:21 pm
DCA
-
IDA
11h 22m
2 stops
$396Delta
Tue, Jan 27 - Sat, Jan 31
United Airlines Logo
10:51 am - 9:07 pm
IDA
-
IAD
8h 16m
1 stop
United Airlines Logo
2:24 pm - 9:16 pm
IAD
-
IDA
8h 52m
1 stop
$404United Airlines
Fri, Feb 13 - Mon, Feb 16
United Airlines Logo
2:40 pm - 11:19 pm
IDA
-
IAD
6h 39m
1 stop
United Airlines Logo
2:12 pm - 8:58 pm
IAD
-
IDA
8h 46m
1 stop
$414United Airlines
Thu, Jan 29 - Mon, Feb 2
American Airlines Logo
7:20 am - 11:12 pm
IDA
-
IAD
13h 52m
2 stops
American Airlines Logo
1:08 pm - 10:36 pm
IAD
-
IDA
11h 28m
2 stops
$415American Airlines
Tue, Jan 27 - Sat, Jan 31
United Airlines Logo
6:30 am - 3:12 pm
IDA
-
IAD
6h 42m
1 stop
United Airlines Logo
2:24 pm - 9:16 pm
IAD
-
IDA
8h 52m
1 stop
$426United Airlines
Fri, Feb 13 - Tue, Feb 17
Alaska Airlines Logo
5:20 pm - 5:40 am
IDA
-
IAD
10h 20m
1 stop
Alaska Airlines Logo
7:05 am - 4:43 pm
IAD
-
IDA
11h 38m
1 stop
$439Alaska Airlines
Tue, Feb 10 - Sat, Feb 14
Alaska Airlines Logo
9:00 am - 5:04 pm
IDA
-
IAD
30h 04m
2 stops
Alaska Airlines Logo
7:05 am - 11:36 pm
IAD
-
IDA
18h 31m
1 stop
$443Alaska Airlines
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.

Which airlines fly non-stop between Idaho Falls and District of Columbia?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Idaho Falls to District of Columbia.

There are 3 airlines that fly nonstop from Idaho Falls to District of Columbia. They are: American Airlines, Delta and United Airlines. The cheapest price of all airlines flying this route was found with United Airlines at $394 for a round-trip flight to Washington, D.C. Reagan-National Airport (DCA). On average, Delta offers the best prices for nonstop flights between Idaho Falls and District of Columbia.

Which airlines provide the cheapest flights from Idaho Falls to District of Columbia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Idaho Falls to District of Columbia were found on United Airlines ($326) and Delta ($390).

Good to know

Cheapest flight$208
Flight from Idaho Falls to Washington Dulles 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.

Reviews of the top 3 airlines serving 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.
7.9
DeltaOverall score based on 8048 reviews
8.5Crew
7.8Entertainment
7.9Comfort
8.1Boarding
7.2Food
Airline reviews

It was good because we traveled without luggage, carry on only.

8.0 ExcellentAnonymous, Jan 2026
ATL - EWR
Read more Delta reviews

It was good because we traveled without luggage, carry on only.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

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.

We were upgraded to First Class and it was a great flight

Amazing I love American. I’ll never fly anyone else if I can help it.

I love American. I’ll never fly anyone else if I can help it.

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