$177 Find Cheap Flights from Reagan Washington National Airport to Idaho - Compare and Save

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Cheap Flights from Reagan-National to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Boise
Boise1 stop$353
Hailey
Hailey1 stop$411
Spokane
Spokane1 stop$367
Boise
Boise1 stop$353
Hailey
Hailey1 stop$411
Spokane
Spokane1 stop$367
Booking Insights

Price, demand and travel trends for Washington, D.C. Reagan-National Airport to Idaho flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Washington, D.C. Reagan-National Airport to Idaho recently?

The cheapest fare from Washington, D.C. Reagan-National Airport to Idaho in the last week was $353 round-trip, to Boise Air Term. Gowen Fld (BOI).

How do fares into airports in Idaho compare?

According to KAYAK data from the last 12 months, the cheapest airports to fly into Idaho from Washington, D.C. Reagan-National Airport are:

• Boise Air Term. Gowen Fld (BOI) (avg. price $420)
• Hailey Sun Valley-Friedman (SUN) (avg. price $458)
• Twin Falls Joslin (TWF) (avg. price $516)

What's the cheapest month to fly from Washington, D.C. Reagan-National Airport to Idaho?

April is typically the cheapest month to fly from Washington, D.C. Reagan-National Airport to Idaho, with round-trip fares averaging $290. July and March are usually the most expensive, averaging $582 and $545, respectively.

How do fares from Washington, D.C. Reagan-National Airport to Idaho vary by day of the week?

On average, Wednesday is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Idaho and Sunday is the most expensive. Looking at the past 12 months of KAYAK data, it's 37% more expensive to fly on a Sunday compared to Wednesday.

What's the best time of day to fly from Washington, D.C. Reagan-National Airport to Idaho?

It's cheapest to fly to Idaho in the afternoon with average prices of $479. The evening is the most expensive time to fly, with average prices of $516.

What's the best time to book a flight from Washington, D.C. Reagan-National Airport to Idaho?

Book your flights 18 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 54% compared to booking at the last minute (within 2 weeks of departure).

Key details for Washington, D.C. Reagan-National Airport to Idaho flights

Low season

October

Cheapest flight

$177
Beat the crowds with an average 48% drop in travelers.
The most popular month to fly with an average 98% increase in travelers.
One-way flight from Washington, D.C. Reagan-National Airport to Boise

Your Washington, D.C. Reagan-National Airport to Idaho flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Washington, D.C. Reagan-National Airport to Idaho?

    Fares from Washington, D.C. Reagan-National Airport to Idaho are around their usual level right now. A round-trip under $348 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch fare changes.

  • How much should I budget for a flight from Washington, D.C. Reagan-National Airport to Idaho?

    Over the past 12 months, round-trip fares from Washington, D.C. Reagan-National Airport to Idaho have typically cost between $348 and $608.

  • What are the main airports serving Idaho?

    There are 9 airports in Idaho. 73% of KAYAK users choose Boise Air Term. Gowen Fld (BOI) as their arrival airport, while 16% choose Idaho Falls Fanning Field (IDA).

  • Which airlines fly nonstop from Washington, D.C. Reagan-National Airport to Idaho?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Washington, D.C. Reagan-National Airport to Idaho. One-stop options include:

    • Delta
    • American Airlines
    • United Airlines

  • Which destinations in Idaho can I fly nonstop from Washington, D.C. Reagan-National Airport?

    Based on the flight schedule for the next 3 months, there are no nonstop flights from Washington, D.C. Reagan-National Airport to Idaho. The most popular destination you can reach with one stop is Boise.

  • Which cabin classes are available from Washington, D.C. Reagan-National Airport to Idaho?

    On flights from Washington, D.C. Reagan-National Airport to Idaho you can book Economy Class or First Class.

  • What are some popular landmarks around Idaho?

    Idaho is home to many popular sights. KAYAK travelers' favorites include:

    • Idaho Central Arena
    • Julia Davis Park
    • Discovery Center of Idaho
    • Boise Art Museum

Your guide to booking Washington, D.C. Reagan-National Airport to Idaho flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 18 weeks before your trip. KAYAK data shows fares in this window are around 54% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • Flexible with your dates? Fly in April to save some money. It's typically the cheapest month on this route, while flights in July will cost you the most.
  • Fly out on a Wednesday to get the cheapest fares. Avoid Sunday flights, which are about 37% more expensive.
  • If you're watching your budget, fly into Boise Air Term. Gowen Fld (BOI) which has the lowest average airfare in the region. Just remember to budget for any onward travel by bus, car or domestic flight.
  • Start your trip in Boise, the most popular destination in Idaho. From there, it's easy to continue on to other popular spots such as Idaho Falls, Coeur d'Alene and Twin Falls.

Reviews of the top 4 airlines serving from Reagan-National to Idaho

 
Need help choosing which airline to fly with from Reagan-National to Idaho? 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
Alaska AirlinesOverall score based on 13159 reviews
8.1Boarding
7.0Food
7.0Entertainment
8.5Crew
7.8Comfort
Airline reviews

Excellent because of the flight attendant Wendy in first class. She is the by far the best flight attendant I have ever experienced!

10.0 ExcellentMarie, Nov 2026
Read more Alaska Airlines reviews

Excellent because of the flight attendant Wendy in first class. She is the by far the best flight attendant I have ever experienced!

First class flight attendants went out of their way to help me with bag of ice to ice my foot (recovering from surgery) which helped with swelling. And helped with leg rest that I couldn’t move.

On time departure & early arrival made the long day much better

Alaska has been my favorite airline for years, so this last trip came as a shock and disappointment. The seats on the plane were so uncomfortable and seemingly cheap. The person sitting next to me said the same thing. I used to love the in cabin lighting, the purple was so relaxing, it's now gone. The little touches that made Alaska great are gone. I purchased the wifi and it wasn't working during much of the flight, the flight attendants kept rebooting it. I wouldn't have spent my money that way had I known it would be unusable for 50% of the flight. I am bummed because I always chose Alaska over price shopping. I have an upcoming flight back to DC and decided to go with American Airlines. It was a better price and I don't feel like Alaska gives me anything special.

It departed an hour and a half late because the crew got in late the previous night due to weather related problems. So we got into LA later than anticipated and traffic was much worse.

Good. I didn’t order food and there was no entertainment available.

It was not a good experience, the flight was delayed 3 hours, the gate staff were super pushy to get bags checked claiming it was a full flight, there were about a dozen open seats from what I could tell. The intercom from the pilot seemed to be broken, it sounded like the pilot was speaking with a mouth full of marbles.

Flight cancelled and deplaned. Rescheduled 8 hours later at a different airport. Ended up at destination but late.

The seats are very small. I’m 5’ 3”, so don’t think I should notice. The food selection was non existent and very disappointing. 5 hour flight plus TSA, etc. I would have appreciated a small salad, crudités. Something fresher not just chips.

I liked the free snacks and drink. I liked the onboard entertainment. I did not like the WiFi cutting out in middle of my movie.

We experienced delays in small increments that added up to more than an hour. At the gate, staff showed little concern and compared our delay with the inbound flight’s two-hour tarmac wait, which didn’t address our situation. Once onboard, the flight attendants seemed tired and unfriendly. I understand delays are frustrating for everyone, but passengers shouldn’t feel blamed for them. During the flight, a bright light above the emergency exit stayed on. It was concerning, and no one explained it or offered passengers the option to move. After landing, we waited about 30 minutes on the tarmac for a gate, then waited again for an agent to connect the plane to the terminal. From the Reagan gate staff to the cabin crew and RDU personnel, the service felt dismissive throughout. Overall, this was a stressful trip and a very disappointing customer-service experience

delayed take-off, then had to circle in air for awhile, wi-fi did not work, then the cabin got extremely hot multiple times and the luggage was at wrong carousel at LGA. In addition, plenty of overhead space so they checked bags too early. Horrible flight.

WiFi only works on about 75% of my Delta flights. I rarely fly SW, but their WiFi works 100% of the time and is easy to connect. On my DL flight from DCA to BNA today, I try to connect to WiFi for about 30 minutes, but I gave up. I have a lot of work to do, and I lost two hours today. Very frustrating.

Flight was delayed for about an hour but overall good experience

The gentleman at the gate I think his name is RIE was exceptional

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

715PM departure was 2.5 hours late. Received hotel & food voucher but after we already booked a room. Entire team just seemed like they were 2-3 steps behind in execution, and notifcations.

I appreciate how quickly and kindly the people at the gate at DCA accommodated several of us who wanted to switch from the 6pm flight to the 5pm flight at the last minute. The flight crew was helpful to us too (dealing with luggage).

The couple in front of me were constantly talking over the announcement from the captain and this was annoying me.

Flight attendant incredibly rude. Stuck her finger in my drink and didn’t even have the courtesy to apologize.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Never nice, United Express partners always do an amazing job.

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

I was forced to gate check my carry on luggage. Somehow it did not arrive at my destination. I still have yet to receive my bag r days after arrival.

Boarding area is a mess. Lines not bounded and gate area too small. Food options (on this specific flight) were poor and you couldn’t pick part of it since it was like a mash of chicken and other unrecognisable stuff. Comfort of seats along with child noise made it difficult to get a good sleep. Last, the flight attendant that served my aisle was rude (others seemed fine) towards me and others.

I have generally had positive experiences with American Airlines (outside a handful of delayed flights), which is why I wanted to share this feedback constructively. On my recent flight, my travel experience was extremely uncomfortable because my seat mate significantly encroached into my assigned seat space for the duration of the flight. As a result, I was forced to sit partially sideways, with much of my shoulder and upper body extending into the aisle. Unfortunately, my back still hurts from maintaining that awkward position.I recognize that this is a sensitive and challenging issue for airlines and cabin crews to address. Everyone deserves to travel with dignity and respect, and I understand that individual circumstances can vary. However, fairness also requires that all passengers have reasonable access to the seat space they have paid for. When one passenger's use of space substantially impacts another passenger's ability to sit safely and comfortably, there should be a practical solution available.I appreciate the complexities involved, but I hope American Airlines will continue exploring ways to ensure that all passengers can travel comfortably and equitably. This experience detracted significantly from what should have been a routine flight.

Crew tried to accommodate late arrival due to late departure

I injured myself during my trip. The staff of American Airlines were very compassionate and empathic. They took additional steps to make my experience easier. Thank you!!

There was no ground crew at HSV gate when we arrived. The were busy with another arrival. We had to wait 20 mins for them to arrive and direct the plane to the gate. It took almost 45 mins to get my luggage. The luggage belt had 3 flights bags on it and the other 2 luggage belts were not being used. It looked like there was only 1 crew serving .3 arriving flights.

Liked: staff, no delays, Could use some improvement: Food, comfort, cleanliness, lack of chargers on the DCA -> DSM flight

It was close to its perfect the flake could be took off early, landed early, didn’t have to wait for my daughter stroller luggage came out quick, very efficient, very good flight

comfy and spacious seats for premium economy, nice flight attendants. only problem was the wifi did not work, and my entertainment screen was locked in Arabic language and all kids shows with no way of seemingly changing it. but the flight was fine and I arrived with no issues

Flight was delayed which isn’t the airline’s fault, but the communication around it was terrible. I left the lounge to show up at the gate to board at the time in my app, and the flight in front of mine was still boarding and the inbound plane hadn’t even taken off yet. Delays were slow to show up in my app. Improved communication could have let me have a more pleasant experience in the lounge vs waiting 1.5 hours at the gate.

Wifi was good on the flight from DCA to Dallas and terrible on the flight from Dallas to Tucson. The forward head in the flight from Dallas to Tucson was putrid smelling entirely urine soaked. The flight from DCA to Dallas was delayed by almost 30 min with a plane change.

Sat on tarmac at arrival at DFw for more than 30 min waiting for a gate.

More options for your flight from Reagan-National to Idaho

Complete your trip to Idaho with a hotel stay or car rental