Cheap flights from Washington, D.C. (WAS) to Idaho Falls (IDA) from $370

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. to Idaho Falls (average of $397). Flying from Washington, D.C. to Idaho Falls in July is currently the most expensive (average of $623). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

• What airport do you fly into for flights to Idaho Falls from Washington, D.C.?

  Located just 3.8 mi from the city center, Idaho Falls Fanning Field is the airport most travelers will use when flying to Idaho Falls from Washington, D.C.. Booking flights from Washington, D.C. to Fanning Field (IDA) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. from 4 different airlines.

• Can I find flights from Washington, D.C. to Idaho Falls for under $500 on Cheapflights?

  Yes, there are multiple flights from Washington, D.C. to Idaho Falls for under $500. The cheapest flight booked recently is on Delta for just $445, but on average you can expect to pay $570.

• What are the cheapest airlines flying from Washington, D.C. to Idaho Falls round-trip?

  Delta, at $445, was found to be the cheapest airline from Washington, D.C. to Idaho Falls.Alternate airlines to your destination round-trip include United Airlines and Alaska Airlines. Delta is currently priced 37% below the average price you’ll pay for this route.

• What are the cheapest airlines to fly from Washington, D.C. to Idaho Falls one-way?

  The cheapest airlines for a one-way flight from Washington, D.C. to Idaho Falls are Alaska Airlines ($370), American Airlines ($400), and United Airlines ($620).

• What are the most popular routes from Washington, D.C. to Idaho Falls?

  When deciding which route to take from Washington, D.C. to Idaho Falls consider Washington, D.C. Dulles Intl - Idaho Falls Fanning Field, Baltimore/Washington - Idaho Falls Fanning Field or Washington, D.C. Reagan-National - Idaho Falls Fanning Field as they are the most popular.

• What are the most popular airlines that fly from Washington, D.C. to Idaho Falls?

  When booking a flight from Washington, D.C. to Idaho Falls, you may want to consider flying on American Airlines, Alaska Airlines or Delta as they are the most popular for this route.

• What does IAD to IDA mean?

  These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Washington, D.C. Dulles Intl Airport to Idaho Falls Fanning Field Airport flight would often be abbreviated as a IAD to IDA flight. Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA) are other airports near this flight route and their unique identifiers/IATA codes.

• Can I find deals for flights from Washington, D.C. to Idaho Falls that include extra baggage allowance?

  The amount of baggage you can bring on your Washington, D.C. to Idaho Falls flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from Washington, D.C. to Idaho Falls with specific airlines?

  Yes, Cheapflights allows you to browse and filter Washington, D.C. to Idaho Falls flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from Washington, D.C. to Idaho Falls that include hotel bookings?

  Yes. In addition to deals on Washington, D.C. to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

• How can I find direct flights from Washington, D.C. to Idaho Falls?

  After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Idaho Falls.

• Can I find deals for business class flights from Washington, D.C. to Idaho Falls?

  Yes. Cheapflights offers flight deals from Washington, D.C. to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

• Can I find deals for flights from Washington, D.C. to Idaho Falls that allow pets onboard?

  Many airlines flying from Washington, D.C. to Idaho Falls offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from Washington, D.C. to Idaho Falls?

  Yes, you can often find last-minute deals on Washington, D.C. to Idaho Falls flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the Washington, D.C. to Idaho Falls flight deals updated?

  The Washington, D.C. to Idaho Falls flight deals you see on this page were last updated on 5/20.