IDA - DCA

$257 Find Cheap Flights from Idaho Falls to Reagan Washington National Airport

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 Washington, D.C. departing on 11/23. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Reagan-National Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Washington, D.C., 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 Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$384
Alaska Airlines
Wed 12/3Mon 12/8
IDA - DCA • 1 stop
Cheapest one-way
$257
Alaska Airlines
Sun 11/23
IDA - DCA • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $384 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Idaho Falls to Reagan-National (IDA-DCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Reagan-National 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 Washington, D.C.

Wed, Dec 3 - Mon, Dec 8
Alaska Airlines Logo
5:07 pm - 9:59 pmIDA-DCA
26h 52m1 stop
Alaska Airlines Logo
5:00 pm - 4:27 pmDCA-IDA
25h 27m1 stop
$384Alaska Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
Alaska Airlines Logo
6:58 pm - 4:09 pmIDA-DCA
19h 11m1 stop
Alaska Airlines Logo
5:01 pm - 11:58 pmDCA-IDA
8h 57m1 stop
$394Alaska Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
Alaska Airlines Logo
5:07 pm - 9:59 pmIDA-DCA
26h 52m1 stop
Alaska Airlines Logo
5:00 pm - 4:27 pmDCA-IDA
25h 27m1 stop
$403Alaska Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
American Airlines Logo
7:29 am - 9:30 pmIDA-DCA
12h 01m2 stops
American Airlines Logo
6:30 am - 1:37 pmDCA-IDA
9h 07m1 stop
$420American Airlines
Find Deal
Thu, Dec 4 - Wed, Dec 10
Delta Logo
6:00 am - 6:59 pmIDA-DCA
10h 59m2 stops
Delta Logo
12:32 pm - 10:21 pmDCA-IDA
11h 49m2 stops
$460Delta
Find Deal
Thu, Oct 30 - Sat, Nov 8
Delta Logo
6:00 am - 4:00 pmIDA-DCA
8h 00m1 stop
Delta Logo
5:10 pm - 10:27 pmDCA-IDA
7h 17m1 stop
$473Delta
Find Deal
Thu, Oct 30 - Sat, Nov 8
Delta Logo
6:00 am - 4:00 pmIDA-DCA
8h 00m1 stop
Delta Logo
3:05 pm - 10:27 pmDCA-IDA
9h 22m2 stops
$478Delta
Find Deal
Wed, Jan 28 - Sun, Feb 1
American Airlines Logo
7:29 am - 10:00 pmIDA-DCA
12h 31m2 stops
American Airlines Logo
10:10 am - 10:36 pmDCA-IDA
14h 26m2 stops
$494American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
1:43 pm - 11:00 pmIDA-DCA
7h 17m1 stop
American Airlines Logo
5:00 am - 12:22 pmDCA-IDA
9h 22m1 stop
$505American Airlines
Find Deal
Wed, Oct 29 - Sun, Nov 2
American Airlines Logo
12:55 pm - 11:00 pmIDA-DCA
8h 05m1 stop
American Airlines Logo
10:46 am - 10:34 pmDCA-IDA
13h 48m2 stops
$536American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Idaho Falls to Washington, D.C. flights

Get data-powered insights and trends into flights from Idaho Falls to Washington, D.C. 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 Washington, D.C. Reagan-National Airport?

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 Washington, D.C. Reagan-National Airport departing in December.

What’s the cheapest day of the week to fly from Idaho Falls to Reagan Washington National Airport?

The average price of all round-trip flights from Idaho Falls to Washington, D.C. Reagan-National Airport clicked on KAYAK for each day over the last 12 months.

When flying from Idaho Falls to Reagan Washington National Airport, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Idaho Falls, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

Good to know

Low seasonApril
Cheapest flight$257
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly and prices are also 39% lower on average.
Flight from Idaho Falls to Reagan Washington National Airport

When to book flights from Idaho Falls to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Idaho Falls to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Idaho Falls to Reagan Washington National Airport flights

  • What is the cheapest flight from Idaho Falls to Washington, D.C. Reagan-National Airport?

    In the last 3 days, the lowest price for a flight from Idaho Falls to Washington, D.C. Reagan-National Airport was $257 for a one-way ticket and $384 for a round-trip.

  • Do I need a passport to fly between Idaho Falls and Reagan Washington National Airport?

    A passport is not required to fly from Idaho Falls to Reagan Washington National Airport.

  • Which aircraft models fly most regularly from Idaho Falls to Reagan Washington National Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Idaho Falls to Reagan Washington National Airport?

    Star Alliance, and oneworld are the airline alliances operating flights between Idaho Falls and Reagan Washington National Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Idaho Falls to Washington, D.C., United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Washington, D.C. are United Airlines and American Airlines. With an average price for the route of $698 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $607 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Idaho Falls to Reagan Washington National Airport?

    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 Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Reagan Washington National Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from Idaho Falls 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 Reagan Washington National Airport?

    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 to Reagan Washington National Airport with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and DCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Reagan Washington National Airport?

    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 to Reagan Washington National Airport from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Idaho Falls to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Washington, D.C.. 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 Washington, D.C.? 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 8982 reviews
6.6Food
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

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

6.0 GoodMr, Oct 2025CPT - IAD
Read more United Airlines reviews

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.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

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.

Everything you need to know for your flight from Idaho Falls to Washington, D.C.

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