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Cheap Flights from Dayton (DAY) to Washington D.C. (IAD)

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      Travellers and cabin class, 1 Adult, Economy
      United
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      Compare Dayton International to Washington Dulles flight deals

      Find the cheapest month or even day of the year to fly to Washington Dulles

      Book the best Washington Dulles fare with no extra fees

      Flight deals from Dayton International to Washington Dulles

      Looking for a cheap last-minute deal or the best return flight from Dayton International Airport to Washington Dulles Airport? If you want to travel next month, return fares start from $365. Find the lowest prices on one-way and return tickets right here.
      Washington D.C..$365 per passenger.Departing Fri, 18 Sep, returning Mon, 21 Sep.Return flight with United.Outbound direct flight with United departs from Dayton International on Fri, 18 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 21 Sep, arriving in Dayton International.Price includes taxes and charges.From $365, select.
      Washington D.C..$365 per passenger.Departing Fri, 25 Sep, returning Fri, 2 Oct.Return flight with United.Outbound direct flight with United departs from Dayton International on Fri, 25 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Fri, 2 Oct, arriving in Dayton International.Price includes taxes and charges.From $365, select.
      Washington D.C..$366 per passenger.Departing Sun, 1 Nov, returning Sun, 8 Nov.Return flight with United.Outbound direct flight with United departs from Dayton International on Sun, 1 Nov, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 8 Nov, arriving in Dayton International.Price includes taxes and charges.From $366, select.
      Washington D.C..$366 per passenger.Departing Fri, 28 Aug, returning Sun, 30 Aug.Return flight with United.Outbound direct flight with United departs from Dayton International on Fri, 28 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 30 Aug, arriving in Dayton International.Price includes taxes and charges.From $366, select.
      Washington D.C..$366 per passenger.Departing Fri, 30 Oct, returning Sun, 1 Nov.Return flight with United.Outbound direct flight with United departs from Dayton International on Fri, 30 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 1 Nov, arriving in Dayton International.Price includes taxes and charges.From $366, select.
      Washington D.C..$366 per passenger.Departing Tue, 6 Oct, returning Tue, 13 Oct.Return flight with United.Outbound direct flight with United departs from Dayton International on Tue, 6 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 13 Oct, arriving in Dayton International.Price includes taxes and charges.From $366, select.
      Washington D.C..$366 per passenger.Departing Tue, 24 Nov, returning Tue, 1 Dec.Return flight with United.Outbound direct flight with United departs from Dayton International on Tue, 24 Nov, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 1 Dec, arriving in Dayton International.Price includes taxes and charges.From $366, select.
      Washington D.C..$366 per passenger.Departing Wed, 10 Feb, returning Sat, 13 Feb.Return flight with United.Outbound direct flight with United departs from Dayton International on Wed, 10 Feb, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 13 Feb, arriving in Dayton International.Price includes taxes and charges.From $366, select.
      Washington D.C..$702 per passenger.Departing Sun, 28 Feb, returning Tue, 2 Mar.Return flight with United.Outbound direct flight with United departs from Dayton International on Sun, 28 Feb, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 2 Mar, arriving in Dayton International.Price includes taxes and charges.From $702, select.
      Washington D.C..$766 per passenger.Departing Mon, 22 Mar, returning Thu, 25 Mar.Return flight with United.Outbound direct flight with United departs from Dayton International on Mon, 22 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 25 Mar, arriving in Dayton International.Price includes taxes and charges.From $766, select.

      Find the cheapest month to fly from Dayton International to Washington Dulles

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dayton International to Washington Dulles flights are currently cheapest in September.
      Aug
      from $366
      Sep
      from $365
      Oct
      from $366
      Nov
      from $366
      Dec
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      Jan
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      Feb
      from $366
      Mar
      from $766
      Apr
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      May
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      Jun
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      Jul
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      Direct flights from Dayton International to Washington Dulles

      Austrian Airlines
      Avianca
      Brussels Airlines
      Copa
      Lufthansa
      United

      Dayton International to Washington Dulles: Alternative routes

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

      Washington Ronald Reagan

      5km from central Washington D.C.
      Closest
      from $393
      Search flights

      Washington Dulles

      37km from central Washington D.C.
      Cheapest
      from $365
      Search flights

      Baltimore Washington International

      44km from central Washington D.C.
      from $396
      Search flights

      Dayton to Washington D.C.: Flight information

      The things to know before you go.
      Cheapest flight found$365
      Cheapest month to flySeptember
      Average flight time1 hr, 34 mins
      Most popular airlineUnited
      Average flights per week67

      Finding cheap flights from Dayton International to Washington Dulles: Frequently asked questions

      The best price we found for a return flight from Dayton International to Washington Dulles is $365. 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.
      1 hour and 34 minutes is the average flight time from Dayton International to Washington Dulles.
      United, Lufthansa and Avianca fly direct from Dayton International to Washington Dulles.
      As of August 2026, there are 67 flights per week flying from Dayton International to Washington Dulles.
      The cheapest month to fly from Dayton International to Washington Dulles is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dayton International Airport to Washington Dulles Airport on Friday, 18 September 2026.
      Yes – the average flight time is 1 hour and 34 minutes.
      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 Dulles 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.

      Currently, United offers the cheapest flight tickets to Washington Dulles.

      Travelling from Dayton International Airport (DAY) to Washington Dulles Airport (IAD): what you need to know

      • Around 1 hour 35 minutes is how long you can expect to be travelling on a direct flight from Dayton International Airport to Washington Dulles Airport.

      • Washington DC's timezone is UTC-5, which is the same as Dayton.

      • You can choose from 18 weekly Dayton International Airport to Washington Dulles Airport flights. The 06:00 departure with United Airlines is the earliest flight you can take. United Airlines operates the last service of the day at 19:45.

      • Your DAY to IAD flight won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

      • Flying during a peak time like November? School holidays and other high seasons can result in longer queues and delays at airport checkpoints. Play it safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

      • United offers direct flights from Dayton International Airport to Washington Dulles Airport. Book with this popular carrier, then get ready to see the sights in Washington DC — and maybe even more of the United States if you have time.

      • Most passengers choose to fly with United on this route.

      • The most punctual carrier offering DAY to IAD flights is United. Its services land without delay 76.59% of the time.

      • Think about adding a stopover when booking your ticket from Dayton International Airport to Washington Dulles Airport. Simply deselect 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here are some options between DAY and IAD:

        • Atlanta Hartsfield-Jackson Airport

        • New York LaGuardia Airport

        • Philadelphia International Airport

      How to find the cheapest flights from Dayton International Airport (DAY) to Washington Dulles Airport (IAD)

      • $240 is currently the best price for a one-way Dayton International Airport to Washington Dulles Airport flight. Return flights start from $365. These prices may change depending on demand.

      • To get cheap tickets from DAY to IAD, book your journey five months before your planned departure.

      • The cheapest month for flights from Dayton International Airport to Washington Dulles Airport is October. Use the 'Whole month' tool to see the lowest airfares if you have flexible dates.

      • Landing cheap flights from DAY to IAD is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as fares go down.

      • Pick your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Dayton International Airport to Washington Dulles Airport.

      Handy information about Dayton International Airport (DAY)

      • DAY is located at Terminal Building.

      • Of the departures from Dayton International Airport, 76% arrive on time at their destination.

      • To reach Dayton International Airport from central Dayton, it'll take about 20 minutes if you're going by car. This depends on traffic though. It's approximately 16 kilometres from the airport to the city centre.

      • Planning to catch public transport? You can expect a journey time of around 40 minutes.

      • Catching an early flight from Dayton International Airport to Washington Dulles Airport? Avoid the hassle of rushing to the airport (and enjoy a little extra shut-eye) by picking one of these hotels close to DAY:

      Arriving at Washington Dulles Airport (IAD)

      Getting from Washington Dulles Airport (IAD) to central Washington DC

      • You'll find IAD at 1 Saarinen Circle.

      • Washington Dulles Airport to central Washington DC has a drive time of about 45 minutes. It's approximately 40 kilometres away.

      • It typically takes 1 hour 10 minutes if you're travelling by public transport.

      When to fly to Washington Dulles Airport (IAD)

      • It's time to choose your dates for your flight from Dayton International Airport to Washington Dulles Airport. July is the most popular month to head to Washington DC. If you prefer a quieter vibe, go in February.

      • The warmest month in Washington DC is July, with temperatures ranging between 19ºC (66ºF) and 33ºC (91ºF). Lock in your flights from Dayton International Airport to Washington Dulles Airport in this month if you like this kind of weather.

      • Search for cheap tickets from DAY to IAD in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

      Explore more of the United States

      • Washington DC has its own special appeal, but there are so many other parts of the United States just waiting to be explored. About 322 kilometres north-east of Washington DC, a trip to New York will keep you on the go. Start with popular sights like Central Park, Statue of Liberty and Metropolitan Museum of Art.

      • If you want to check out another great destination in the United States, consider Philadelphia, roughly 193 kilometres north-east of Washington DC. Independence Hall, Liberty Bell and Philadelphia Museum of Art are key reasons to visit.

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

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