IDA - DCA

$175 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 4/2. 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 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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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$429
Delta
Mon 3/30Tue 4/7
IDA - DCA • 2 stops
Cheapest one-way
$324
Multiple Airlines
Thu 4/2
IDA - DCA • 2 stops
Top airlines
Cheapest • from $429 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Idaho Falls and Washington, D.C.. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $329 (round-trip)
Shortest trip • 6h 02m (one-way)
Insights
Insights
Insights
Insights
Start a new search
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 Washington, D.C. (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 Washington, D.C. 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.

Mon, Mar 30 - Tue, Apr 7
Delta Logo
6:55 pm - 9:10 am
IDA
-
DCA
12h 15m
2 stops
Delta Logo
11:00 am - 10:16 pm
DCA
-
IDA
13h 16m
2 stops
$429Delta
Tue, Jul 21 - Tue, Aug 4
American Airlines Logo
12:29 pm - 11:59 pm
IDA
-
DCA
9h 30m
1 stop
American Airlines Logo
5:00 am - 11:59 am
DCA
-
IDA
8h 59m
1 stop
$435American Airlines
Mon, Mar 30 - Sat, Apr 4
Alaska Airlines Logo
6:00 am - 4:10 pm
IDA
-
DCA
8h 10m
1 stop
Alaska Airlines Logo
8:00 am - 10:52 pm
DCA
-
IDA
16h 52m
1 stop
$451Alaska Airlines
Mon, Mar 30 - Mon, Apr 6
Delta Logo
6:55 pm - 9:10 am
IDA
-
DCA
12h 15m
2 stops
Delta Logo
5:12 pm - 10:16 pm
DCA
-
IDA
7h 04m
1 stop
$454Delta
Fri, May 22 - Sun, May 24
Alaska Airlines Logo
4:03 pm - 4:00 pm
IDA
-
DCA
21h 57m
1 stop
Alaska Airlines Logo
5:19 pm - 1:17 pm
DCA
-
IDA
21h 58m
1 stop
$455Alaska Airlines
Mon, Mar 30 - Wed, Apr 8
Delta Logo
6:55 pm - 10:20 am
IDA
-
DCA
13h 25m
2 stops
Delta Logo
12:29 pm - 10:16 pm
DCA
-
IDA
11h 47m
2 stops
$459Delta
Mon, Mar 30 - Sun, Apr 5
Alaska Airlines Logo
6:00 am - 4:10 pm
IDA
-
DCA
8h 10m
1 stop
Alaska Airlines Logo
8:00 am - 10:52 pm
DCA
-
IDA
16h 52m
1 stop
$461Alaska Airlines
Wed, Mar 25 - Tue, Apr 7
Delta Logo
6:55 pm - 10:20 am
IDA
-
DCA
13h 25m
2 stops
Delta Logo
11:00 am - 10:16 pm
DCA
-
IDA
13h 16m
2 stops
$474Delta
Mon, Mar 30 - Thu, Apr 2
Alaska Airlines Logo
6:00 am - 4:10 pm
IDA
-
DCA
8h 10m
1 stop
Alaska Airlines Logo
8:00 am - 4:19 pm
DCA
-
IDA
10h 19m
1 stop
$480Alaska Airlines
Fri, Mar 27 - Sun, Apr 5
American Airlines Logo
6:05 am - 7:46 pm
IDA
-
DCA
11h 41m
2 stops
American Airlines Logo
6:30 am - 1:48 pm
DCA
-
IDA
9h 18m
1 stop
$484American Airlines
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.

Which airlines provide the cheapest flights from Idaho Falls to Reagan Washington National Airport?

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 Reagan Washington National Airport were found on Delta ($429) and American Airlines ($435).

Good to know

Cheapest flight$324
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 $324 for a one-way ticket and $429 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?

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

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

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Washington, D.C. are Delta and American Airlines. With an average price for the route of $552 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $863 and an overall rating of 7.1.

  • 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.
7.9
DeltaOverall score based on 8296 reviews
7.9Comfort
7.2Food
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

2.0 MediocreSusan, Mar 2026
JAX - ATL
Read more Delta reviews

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Flight was on time and there was an empty seat next to me. That makes for a good flight!

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

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

Information on your arrival and departure airports