Skyscanner

Cheap Flights from Idaho Falls (IDA) to Washington D.C. (WASA)

Travellers and cabin class

Compare Idaho Falls to Washington D.C. flight deals

Find the cheapest month or even day of the year to fly to Washington D.C.

Book the best Washington D.C. fare with no extra fees

Find the cheapest month to fly from Idaho Falls to Washington D.C.

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Idaho Falls to Washington D.C. flights are currently cheapest in July.
Jun
from $844
Jul
from $608
Aug
Find prices
Sep
Find prices
Oct
Find prices
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices

Alternative Idaho Falls to Washington D.C. routes

Looking for the cheapest, fastest or easiest route from Idaho Falls to Washington D.C.? You could fly into the following airports instead.

Idaho Falls to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$608
Cheapest month to flyJuly

Finding cheap flights from Idaho Falls to Washington D.C.: Frequently asked questions

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.
The best price we found for a return flight from Idaho Falls to Washington D.C. is $608. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Idaho Falls to Washington D.C.. But we found flights with one or more stops from $608.
As of June 2025, there are no flights flying from Idaho Falls to Washington D.C..
The cheapest month to fly from Idaho Falls to Washington D.C. is usually June 2025.
If you're flying from Idaho Falls Airport, the cheapest airport near Washington D.C. is Washington Ronald Reagan – which is 5.5 km away from the centre of Washington D.C.. We've found flights into this airport from $608.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Idaho Falls Airport to Washington D.C. on Thursday, 3 July 2025.
No airlines currently offer direct flights between Idaho Falls Airport and Washington D.C.. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington D.C. but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 22°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.
Currently, Allegiant Air offers the cheapest flight tickets to Washington D.C..

Flying from Idaho Falls Regional Airport (IDA) to Washington DC: what you need to know

  • Washington DC is two hours ahead of Idaho Falls, where Idaho Falls Regional Airport is located. Washington DC runs on the UTC-4 timezone.

  • Allow plenty of time to get on your IDA to Washington DC flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • Delays at security and check-in are likely if you're travelling during high season, so give yourself a little extra breathing room. A good rule for peak times? Arrive up to four hours ahead for international flights and at least two hours for domestic departures.

  • Travelling from central Idaho Falls to IDA takes about 1 hour on public transport. If you ride-share, drive or grab a cab, you'll cover the 3 kilometres in 10 minutes or so, depending on traffic conditions.

  • Want a stress-free start to your trip? Stay near IDA. Whether you have an early flight from Idaho Falls Regional Airport to Washington DC or want to avoid feeling rushed, these hotels are just the thing:

  • Idaho Falls Regional Airport gets top marks for on-time performance. 80.03% of flights that take off from IDA reach their destination without delay.

  • You'll find IDA at 2140 North Skyline.

How to find the cheapest flights from Idaho Falls Regional Airport (IDA) to Washington DC

  • The lowest price we've found for a one-way Idaho Falls Regional Airport to Washington DC flight is $235. The cheapest price for a return flight is $608. Bear in mind fares may change due to availability at the time of booking.

  • To find cheap flights from IDA to Washington DC, book early. Airlines generally offer lower prices when tickets first go on sale.

  • Finding cheap tickets from Idaho Falls Regional Airport to Washington DC is more likely if you're flexible with your trip dates. Use the 'Whole month' tool to get the lowest prices throughout the month and land an epic deal.

  • Spend less time searching for cheap flights from IDA to Washington DC by creating a Price Alert. We'll send you an email or push notification on the app when a new low fare is offered.

  • Tailor your flights with filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Idaho Falls Regional Airport to Washington DC.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) to the centre of Washington DC takes around 15 minutes by car. The centre is roughly 8 kilometres away.

  • It'll take around 45 minutes if you're using public transport.

  • Consider booking a hotel near DCA if you have a late flight from Idaho Falls Regional Airport to Washington DC. Settle into one of these accommodation options and make your arrival easier:

  • Begin your adventure by picking up a Ronald Reagan National Airport rental car. Grab a set of wheels from Thrifty, Sixt or Dollar and explore beyond Washington DC's usual tourist stops.

  • Lock in the best possible rate by booking your vehicle from Ronald Reagan National Airport about four weeks before your flight from IDA to Washington DC.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • After your flight from Idaho Falls Regional Airport to Washington DC has arrived, you can reach the city centre in around 50 minutes by car. Central Washington DC is roughly 56 kilometres from Washington Dulles International Airport (IAD).

  • If you travel by public transport, you'll reach the centre in 1 hour 10 minutes or so.

  • You'll find some comfortable places ready to welcome you near IAD. Unwind and get cosy after your IDA to Washington DC flight at any of these perfectly located options:

  • No need to worry about public transport schedules or slow-moving cab lines. Grab a Washington Dulles International Airport rental car and let the journey unfold your way. Compare availability and rates from Dollar, Thrifty and Sixt.

  • Avoid paying more than you need to. Reserving your ride one week before your arrival at IAD will save you money.

  • You'll find Washington Dulles International Airport at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Make tracks for the city centre after your flight from Idaho Falls Regional Airport to Washington DC has landed. Central Washington DC is about 48 kilometres from Baltimore/Wash International Thurgood Marshall Airport (BWI) and takes roughly 50 minutes to reach by cab or ride-share.

  • If you're using public transport, expect a journey of around 1 hour 30 minutes.

  • If you don't want to make the journey to the centre, choose a hotel close to BWI. Make yourself comfy at one of these stays after your IDA to Washington DC flight:

  • Put yourself in the driver's seat of the next leg of your trip by picking up a Baltimore/Wash International Thurgood Marshall Airport rental car. Dollar, Thrifty and Budget are reliable rental providers.

  • If you're looking for a specific model or make, book your ride from BWI about two weeks before your flight from Idaho Falls Regional Airport to Washington DC. This gives you a better chance of getting the car you want, along with a better deal.

Best time to go to Washington DC

  • Before you book your flights from Idaho Falls Regional Airport to Washington DC, consider which time of year is best for you. Peak season in Washington DC offers a bustling atmosphere and plenty of activities, while the low season means you'll get better deals on hotels and smaller crowds.

  • The warmest month in Washington DC is July, with temperatures ranging between 19ºC (66ºF) and 33ºC (91ºF). Book your Idaho Falls Regional Airport to Washington DC flight ticket then if that's the weather you find most pleasant.

  • January sees average temperatures of between -6ºC (21ºF) and 10ºC (50ºF). Search for a cheap ticket from IDA to Washington DC around that time if you'd rather travel in cooler conditions.

More about Washington DC

Explore more of United States

  • New York is just one of the many cities in United States waiting to be explored once you've seen the sights of Washington DC. Around 322 kilometres away to the north-east, top sights here include Statue of Liberty, Central Park and Empire State Building.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another essential stop in United States. Start your sightseeing at Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Plan the rest of your trip from Idaho Falls to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.