£70 Cheap Flights from Washington (IAD) to Miami (MIA)

View £70 flight on Tue, 19 Aug 2025Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Miami International Airport (MIA)

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Cheap Flights from Washington (IAD) to Miami (MIA)

Prices were available within the past 7 days and start at £70 for one-way flights and £139 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 21 Oct - Wed, 5 Nov
IAD
Washington
MIA
Miami
£139 Return, found 6 days ago
£139
Return
found 6 days ago
Select United flight, departing Tue, 21 Oct from Washington to Miami, returning Wed, 5 Nov, priced at £139 found 6 days ago
United
Thu, 30 Oct - Wed, 12 Nov
IAD
Washington
MIA
Miami
£143 Return, found 6 days ago
£143
Return
found 6 days ago
Select United flight, departing Thu, 30 Oct from Washington to Miami, returning Wed, 12 Nov, priced at £143 found 6 days ago
United
Fri, 7 Nov - Wed, 19 Nov
IAD
Washington
MIA
Miami
£177 Return, found 6 days ago
£177
Return
found 6 days ago
Select United flight, departing Fri, 7 Nov from Washington to Miami, returning Wed, 19 Nov, priced at £177 found 6 days ago
United
Fri, 2 Jan - Tue, 13 Jan
IAD
Washington
MIA
Miami
£178 Return, found 6 days ago
£178
Return
found 6 days ago
Select United flight, departing Fri, 2 Jan from Washington to Miami, returning Tue, 13 Jan, priced at £178 found 6 days ago
United
Fri, 7 Nov - Tue, 18 Nov
IAD
Washington
MIA
Miami
£184 Return, found 6 days ago
£184
Return
found 6 days ago
Select United flight, departing Fri, 7 Nov from Washington to Miami, returning Tue, 18 Nov, priced at £184 found 6 days ago
United
Fri, 2 Jan - Fri, 16 Jan
IAD
Washington
MIA
Miami
£187 Return, found 6 days ago
£187
Return
found 6 days ago
Select United flight, departing Fri, 2 Jan from Washington to Miami, returning Fri, 16 Jan, priced at £187 found 6 days ago
United
Thu, 1 Jan - Mon, 12 Jan
IAD
Washington
MIA
Miami
£188 Return, found 6 days ago
£188
Return
found 6 days ago
Select United flight, departing Thu, 1 Jan from Washington to Miami, returning Mon, 12 Jan, priced at £188 found 6 days ago
American Airlines
Wed, 6 Aug - Wed, 13 Aug
IAD
Washington
MIA
Miami
£188 Return, found 6 days ago
£188
Return
found 6 days ago
Select American Airlines flight, departing Wed, 6 Aug from Washington to Miami, returning Wed, 13 Aug, priced at £188 found 6 days ago
Delta
Thu, 31 Jul - Sat, 2 Aug
IAD
Washington
MIA
Miami
£285 Return, found 1 day ago
£285
Return
found 1 day ago
Select Delta flight, departing Thu, 31 Jul from Washington to Miami, returning Sat, 2 Aug, priced at £285 found 1 day ago
Alaska Airlines
Mon, 25 Aug - Fri, 29 Aug
IAD
Washington
MIA
Miami
£4,310 Return, found 2 days ago
£4,310
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 25 Aug from Washington to Miami, returning Fri, 29 Aug, priced at £4,310 found 2 days ago

Find the cheapest month to fly from Washington (IAD) to Miami (MIA)

May is typically the cheapest month to fly

From £64 - £245 per traveller.

Graph displaying average flight prices per month

Flight from Washington to Miami route information
Origin airport
Washington Dulles Intl.
Destination airport
Miami Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
£139
Distance
1478 km
Average flight time
3 hours 33 mins

Compare flights from Washington to Miami easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Miami. Operating between them 3 flights per day, 20 airlines cover the route. And Copa Airlines, United Airlines fly direct, getting you to Miami Intl. in just 2hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to Miami Intl..  

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 Washington Dulles Intl. (IAD) to Miami Intl. (MIA)

The easiest way to view the best deals on flights from Washington to Miami 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 Washington Dulles Intl. to Miami Intl. start at just £139 and range up to £4,310.  

To find an even better deal, try  

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

Why you should book your Washington to Miami flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to Miami Intl. 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 Washington Dulles Intl. Airport (IAD) to Miami Intl. Airport (MIA)?
If you're planning on travelling between Washington Dulles Intl. Airport (IAD) and MIA, round-trip journeys start from £139. This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book now and save yourself 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 IAD to Miami Intl. Airport (MIA)?
This can differ between airlines, as each one has its own set of terms and conditions. Head to the Customer Service Portal, where you'll find easy instructions on how to cancel online.
How do I find cheap flights from Dulles Intl. Airport to MIA 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 Dulles Intl. Airport to MIA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Dulles Intl. Airport to Miami Airport?
That new movie you've been eager to see will have to wait — the flight distance between IAD and MIA is only 1,500 kilometres. The captain will be instructing you to put your seat upright for touchdown before you know it.
Which airlines fly direct from Dulles Intl. Airport to MIA?
If you're eager to fly directly from Washington Dulles Intl. Airport (IAD) to MIA, United Airlines (UA) is a popular option. It operates 30 flights every month between Chantilly and Miami.
Are IAD to Miami Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally score a bargain, with some of the cheapest airfares from IAD to Miami Airport arising a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline releases prices that far in advance.

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