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$179 Cheap Flights from Washington Dulles to Boise

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      Travellers and cabin class, 1 Adult, Economy

      Compare Washington Dulles to Boise flight deals

      Find the cheapest month or even day of the year to fly to Boise

      Book the best Boise fare with no extra fees

      Flight deals from Washington Dulles to Boise

      Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Boise Airport? If you want to travel next month, return fares start from $410. Find the lowest prices on one-way and return tickets right here.
      Boise.$179 per passenger.Departing Wed, 16 Dec.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 16 Dec, arriving in Boise.Price includes taxes and charges.From $179, select.
      Boise.$204 per passenger.Departing Thu, 22 Oct.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Thu, 22 Oct, arriving in Boise.Price includes taxes and charges.From $204, select.
      Boise.$204 per passenger.Departing Thu, 11 Mar.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Thu, 11 Mar, arriving in Boise.Price includes taxes and charges.From $204, select.
      Boise.$204 per passenger.Departing Sat, 1 May.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Sat, 1 May, arriving in Boise.Price includes taxes and charges.From $204, select.
      Boise.$204 per passenger.Departing Mon, 2 Nov.One-way flight with United.Outbound indirect flight with United, departs from Washington Dulles on Mon, 2 Nov, arriving in Boise.Price includes taxes and charges.From $204, select.
      Boise.$235 per passenger.Departing Sun, 10 Jan.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Sun, 10 Jan, arriving in Boise.Price includes taxes and charges.From $235, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Washington Dulles to Boise found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Washington Dulles to Boise

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Boise flights are currently cheapest in December.
      Oct
      from $204
      Nov
      from $204
      Dec
      from $179
      Jan
      from $235
      Feb
      Find prices
      Mar
      from $204
      Apr
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      May
      from $205
      Jun
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      Jul
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      Aug
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      Sep
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      Washington Dulles to Boise: Alternative routes

      Compare routes from Washington Dulles to Boise below. You may find an airport to fly into that's cheaper, faster, or easier than Boise.

      Boise

      5km from central Boise
      ClosestCheapest
      from $179
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      Washington D.C. to Boise: Flight information

      The things to know before you go.
      Cheapest flight found$179
      Cheapest month to flyDecember

      Finding cheap flights from Washington Dulles to Boise: Frequently asked questions

      The best price we found for a return flight from Washington Dulles to Boise is $397. 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 Washington Dulles to Boise. But we found flights with one or more stops from $397.
      As of October 2026, there are no flights flying from Washington Dulles to Boise.
      The cheapest month to fly from Washington Dulles to Boise is usually February.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Boise Airport on Tuesday, 2 February 2027.
      No airlines currently offer direct flights between Washington Dulles Airport and Boise Airport. 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 Boise 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 Boise is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Delta offers the cheapest flight tickets to Boise.

      Flying from Washington Dulles Airport (IAD) to Boise Airport (BOI): what you need to know

      • To ensure you catch your IAD to BOI flight, allow plenty of time for things like check-in and baggage drop. Arriving two hours before international departures and one hour before domestic flights is the general rule.

      • Flying during a peak month such as July? Major public holidays and other popular seasons can mean longer queues at security. Play things extra safe and get there up to four hours before international flights and two hours before domestic departures.

      • Consider adding a stopover when booking your ticket from Washington Dulles Airport to Boise Airport. Just uncheck 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here's where you can stop between IAD and BOI:

        • Chicago O'Hare International Airport

        • Atlanta Hartsfield-Jackson Airport

        • Denver International Airport

      Handy information about Washington Dulles Airport (IAD)

      • You'll find IAD at 1 Saarinen Circle.

      • Of all flights departing from Washington Dulles Airport, 77% land on time at their destination.

      • Washington Dulles Airport is about 40 kilometres from central Washington DC. If you're ride-sharing, catching a taxi or driving from the centre, it'll take you 45 minutes or so to arrive, depending on the traffic.

      • Planning to take public transport? Expect a journey time of around 1 hour 10 minutes.

      • Get your holiday off to a stress-free start by staying near IAD. Whether you're taking an early flight from Washington Dulles Airport to Boise Airport or just don't want to be rushed, these stays have you covered:

      Arriving at Boise Airport (BOI)

      • If you're arriving on a late Washington Dulles Airport to Boise Airport flight, nothing tops the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and sleeping shortly after at one of these accommodation options near BOI:

      • Follow your own route with a Boise Airport rental car. Pick up a set of wheels from Budget, Alamo or Avis and see more of Boise and beyond.

      • Secure the lowest price by booking your ride from Boise Airport about one week before your departure date.

      Getting from Boise Airport (BOI) to central Boise

      • You'll find BOI at 3201 Airport Way.

      • Boise Airport is approximately 6 kilometres from the centre of Boise. The drive time takes about 15 minutes.

      • Travelling to the centre on public transport typically takes 30 minutes.

      When to fly to Boise Airport (BOI)

      • It's time to plan your dates for your flight from Washington Dulles Airport to Boise Airport. October is the most popular month to visit Boise. If you want a more low-key vibe, go in March.

      • Before locking in your flight from Washington Dulles Airport to Boise Airport, think about the type of weather you enjoy. July is the warmest month in Boise, with temperatures ranging from 15ºC (59ºF) to 35ºC (95ºF).

      • If you like cooler conditions, search for a cheap ticket from IAD to BOI in January. Temperatures average between -11ºC (12ºF) and 5ºC (41ºF) then.

      Explore more of the United States

      • Spokane is just one of the many cities in the United States waiting to be explored once you've seen Boise. Around 467 kilometres away to the north, top sights here include Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

      • If you're ready to explore another side of the United States, consider Salt Lake City, roughly 483 kilometres south-east of Boise. Salt Lake Utah Temple, Temple Square and Salt Lake City Tabernacle are highlights.

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

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.