£320 Cheap Flights from Idaho Falls (IDA) to Washington (DCA)

View £320 flight on Fri, 4 Jul 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Ronald Reagan National Airport (DCA)

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Cheap Flights from Idaho Falls (IDA) to Washington (DCA)

Prices were available within the past 7 days and start at £320 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Idaho Falls (IDA) to Washington (DCA)

February is typically the cheapest month to fly

From £260 - £727 per traveller.

Graph displaying average flight prices per month

Flight from Idaho Falls to Washington route information
Origin airport
Idaho Falls Regional
Destination airport
Ronald Reagan Washington National
Distance
2936 km

Compare flights from Idaho Falls to Washington easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Idaho Falls to Washington. Operating between them flights per day, 1 airlines cover the route. And fly direct, getting you to Ronald Reagan Washington National in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Idaho Falls Regional to Ronald Reagan Washington National.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Idaho Falls Regional (IDA) to Ronald Reagan Washington National (DCA)

The easiest way to view the best deals on flights from Idaho Falls to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Idaho Falls Regional to Ronald Reagan Washington National start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Idaho Falls and Washington
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Idaho Falls to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Idaho Falls Regional to Ronald Reagan Washington National for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Idaho Falls Regional Airport to DCA?
If you're planning on travelling from Idaho Falls Regional Airport (IDA) to DCA, round-trip journeys start from . This price is based on airfares advertised within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IDA to DCA?
Most flights can be cancelled online, but every air carrier has its own terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Idaho Falls Regional Airport (IDA) to Ronald Reagan Washington National Airport (DCA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for IDA to DCA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Idaho Falls Regional Airport to National Airport?
Around 3,000 kilometres separates Idaho Falls and Arlington, so pack some entertainment to keep you occupied for a few hours. That thrilling novel you haven't started will do the trick.
Which airlines fly direct from Idaho Falls Regional Airport to Ronald Reagan Washington National Airport (DCA)?
Flying nonstop between Idaho Falls Regional Airport (IDA) and DCA isn't possible at this time. However, you'll still be able to find a flight to Arlington with at least one stop.
Are Idaho Falls Regional Airport (IDA) to DCA flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Idaho Falls Regional Airport (IDA) to National Airport can be hit-or-miss. It is possible to score a bargain, but you could also miss out completely! If you'd rather start your trip planning early on, Expedia compares flight deals up to a year in advance. Just remember that not all airlines list their prices that far in advance. Our advice? Check back often as updates are made frequently.

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