Cheap Flights from Miami International to Washington Dulles

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      Travellers and cabin class, 1 Adult, Economy
      United
      Copa
      ITA Airways
      American Airlines
      Frontier Airlines

      Compare Miami 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 Miami International to Washington Dulles

      Looking for a cheap last-minute deal or the best return flight from Miami International Airport to Washington Dulles Airport? If you want to travel next month, return fares start from R 2,386. Find the lowest prices on one-way and return tickets right here.

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

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Miami International to Washington Dulles flights are currently cheapest in December.

      Direct flights from Miami International to Washington Dulles

      American Airlines
      Copa
      Frontier Airlines
      ITA Airways
      United

      Miami International to Washington Dulles: Alternative routes

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

      Miami to Washington D.C.: Flight information

      The things to know before you go.
      Cheapest flight foundR 944
      Cheapest month to flyDecember
      Average flight time2 hrs, 40 mins
      Most popular airlineUnited
      Average flights per week30

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

      The best price we found for a return flight from Miami International to Washington Dulles is R 1,982. 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.
      2 hours and 40 minutes is the average flight time from Miami International to Washington Dulles.
      United, Copa and ITA Airways fly direct from Miami International to Washington Dulles.
      As of September 2026, there are 30 flights per week flying from Miami International to Washington Dulles.
      The cheapest month to fly from Miami International to Washington Dulles is usually December.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Miami International Airport to Washington Dulles Airport on Thursday, 3 December 2026.
      Yes – the average flight time is 2 hours and 40 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, Frontier Airlines offers the cheapest flight tickets to Washington Dulles.

      Flying from Miami International Airport (MIA) to Washington Dulles Airport (IAD): what you need to know

      • Take a direct flight from Miami International Airport to Washington Dulles Airport and you'll be travelling for an average of 2 hours 40 minutes.

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

      • Take your pick of ten weekly Miami International Airport to Washington Dulles Airport flights. The 08:40 departure with United Airlines is the earliest you can take. United Airlines operates the latest service of the day at 13:47.

      • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to catch your MIA to IAD flight.

      • During popular months like July, it's a good idea to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you fly during peak periods in general.

      • Getting to Washington DC (and then seeing more of the United States!) is a breeze with United. This popular airline offers direct flights from Miami International Airport to Washington Dulles Airport.

      • United is the most frequently booked airline on this route.

      • With a reliable 86.67% of services arriving as scheduled, Frontier Airlines has the best on-time performance for MIA to IAD flights.

      • If you want to break up your flight, simply deselect 'Direct flights only' when searching for your ticket from Miami International Airport to Washington Dulles Airport. These are the most popular stopovers between MIA and IAD:

        • Atlanta Hartsfield-Jackson Airport

        • Orlando International Airport

        • Jacksonville International Airport

      How to find the cheapest flights from Miami International Airport (MIA) to Washington Dulles Airport (IAD)

      • R 944 is the lowest price for a one-way Miami International Airport to Washington Dulles Airport flight. Return flights start from R 1,982. These fares can change based on availability and demand.

      • It's a good idea to book as early as possible if you're looking for cheap tickets from MIA to IAD. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

      • The cheapest month for flights from Miami International Airport to Washington Dulles Airport is May. Use the 'Whole month' tool to find the lowest prices if you have flexible dates.

      • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll let you know the moment a special offer becomes available on cheap flights from MIA to IAD.

      • Tailor your flights with filters. Select your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Miami International Airport to Washington Dulles Airport.

      Handy information about Miami International Airport (MIA)

      • You'll find MIA at 4200 N.W. 21 Street.

      • Of the departures from Miami International Airport, 78% arrive on time at their destination.

      • Miami International Airport is around 11 kilometres from central Miami. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on the traffic.

      • Expect a trip time of about 35 minutes on public transport.

      • Looking for a convenient hotel near MIA? If you're catching an early flight from Miami International Airport to Washington Dulles Airport, these accommodation options will have you sleeping moments from your departure gate:

      Arriving at Washington Dulles Airport (IAD)

      When to fly to Washington Dulles Airport (IAD)

      • July is the most popular month for flights from Miami International Airport to Washington Dulles Airport. To avoid the crowds, head to Washington DC in February.

      • Before locking in your flight from Miami International Airport to Washington Dulles Airport, think about the kind of weather you enjoy. July is the warmest month in Washington DC, with the temperature ranging from 19ºC (66ºF) to 33ºC (91ºF).

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

      Explore more of the United States

      • Washington DC is always a good idea, but there are so many other corners of the United States you should also see. Around 322 kilometres north-east of Washington DC, a trip to New York will keep you busy. Start with leading attractions like Central Park, Statue of Liberty and Metropolitan Museum of Art.

      • Philadelphia is another essential stop in the United States and is around 193 kilometres north-east of Washington DC. No journey is complete without visiting Independence Hall, Liberty Bell and Philadelphia Museum of Art.

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