$79 Cheap Flights from Miami (MIA) to Washington (IAD)

View $79 flight on Tue, Oct 14, 2025Opens in a new window

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

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Cheap Flights from Miami to Washington (MIA-IAD)

Prices were available within the past 7 days and start at $79 for one-way flights and $91 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Nov 10 - Fri, Nov 14
MIA
Miami
IAD
Washington
$91 Roundtrip, found 3 days ago
$91
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Nov 10 from Miami to Washington, returning Fri, Nov 14, priced at $91 found 3 days ago
Frontier Airlines
Sun, Oct 5 - Sun, Oct 12
MIA
Miami
IAD
Washington
$95 Roundtrip, found 4 days ago
$95
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sun, Oct 5 from Miami to Washington, returning Sun, Oct 12, priced at $95 found 4 days ago
Frontier Airlines
Fri, Aug 22 - Sun, Aug 24
MIA
Miami
IAD
Washington
$102 Roundtrip, just found
$102
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Aug 22 from Miami to Washington, returning Sun, Aug 24, priced at $102 just found
Frontier Airlines
Sun, Sep 28 - Sun, Oct 5
MIA
Miami
IAD
Washington
$105 Roundtrip, found 3 days ago
$105
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, Sep 28 from Miami to Washington, returning Sun, Oct 5, priced at $105 found 3 days ago
Frontier Airlines
Fri, Sep 19 - Thu, Sep 25
MIA
Miami
IAD
Washington
$107 Roundtrip, found 3 days ago
$107
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Sep 19 from Miami to Washington, returning Thu, Sep 25, priced at $107 found 3 days ago
Frontier Airlines
Sat, Aug 9 - Mon, Aug 18
MIA
Miami
IAD
Washington
$111 Roundtrip, found 6 days ago
$111
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Miami to Washington, returning Mon, Aug 18, priced at $111 found 6 days ago
Frontier Airlines
Sun, Aug 31 - Fri, Sep 5
MIA
Miami
IAD
Washington
$119 Roundtrip, found 4 days ago
$119
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sun, Aug 31 from Miami to Washington, returning Fri, Sep 5, priced at $119 found 4 days ago
Frontier Airlines
Sat, Aug 9 - Thu, Aug 14
MIA
Miami
IAD
Washington
$135 Roundtrip, found 6 hours ago
$135
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Miami to Washington, returning Thu, Aug 14, priced at $135 found 6 hours ago
United
Tue, Oct 7 - Wed, Oct 15
MIA
Miami
IAD
Washington
$147 Roundtrip, found 15 hours ago
$147
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Oct 7 from Miami to Washington, returning Wed, Oct 15, priced at $147 found 15 hours ago
Delta
Sat, Sep 13 - Tue, Sep 16
MIA
Miami
IAD
Washington
$231 Roundtrip, found 4 days ago
$231
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Sep 13 from Miami to Washington, returning Tue, Sep 16, priced at $231 found 4 days ago

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

June is typically the cheapest month to fly

From $88 - $198 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $167
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $167
Flights from Miami (MIA) to Washington (IAD)
Origin airport
Miami Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$91
Distance
923 mi
Average flight time
2 hours 39 mins

Miami to Washington Flights

The cheapest times to fly from Miami to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Miami to Washington are during the month of November. You can find some of the cheapest flights from Miami to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Miami to Washington

Sunday is one of the best days to book for cheap flights from Miami to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Miami to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Miami to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $79 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Miami to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Miami to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD) cost?
Cheap round-trip flights from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD) start from $116. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines and Spirit Airlines flight leaving MIA on August 11 2025 and touching down at IAD. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from MIA to IAD?
The cheapest flights from MIA to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD)?
You can fly directly from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD) on a United Airlines flight.
What is the cheapest airline that flies from MIA to IAD?
With prices starting from $66 for a one-way flight from MIA to IAD, Frontier Airlines is currently the cheapest airline operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from MIA on September 28 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD)?
On average, only 1 direct flight departs daily from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD). Want additional options? Use Expedia's filters to find flights with layovers and add an extra destination to your journey.
What are the most popular departure times for flights from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD)?
The 1 PM departures from MIA to IAD see the highest demand. Greater demand means you'll likely pay more for these departures. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from MIA to IAD?
Fly on a Friday if you're searching for the best selection of flights from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD)?
Take the earliest flight at around 9:00AM UTC-5, departing from Miami Intl. Airport (MIA). You'll be in the air for approximately 2h 40m, landing at Washington Dulles Intl. Airport (IAD) at approximately 11:40AM UTC-5.
How long does it take to fly from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD)?
Flights from MIA to IAD have an average travel time of 2 hours and 37 minutes. The distance between the two airports is 920 mi.
What airline has the least delays from MIA to IAD?
Consider booking with United Airlines if you'd like to fly straight from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD) without any holdups. This airline has the strongest track record for punctuality, with an on-time performance of 83%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD) route, travel before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Miami Intl. Airport (MIA)?
You can arrive at one of these Washington airports after your direct flight from Miami Intl. Airport (MIA):

  • Ronald Reagan Washington National Airport (DCA)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)
  • Washington Dulles Intl. Airport (IAD)

Is it cheaper to buy a plane ticket from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your plane ticket from MIA to IAD just before your getaway is usually more expensive. But if you're flexible with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a MIA to IAD flight and hotel package?
You'll typically save money by securing a MIA to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your preferred flights and accommodations, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Miami Intl. Airport (MIA) to Washington Dulles Intl. Airport (IAD)?
Typically, you're able to reschedule or cancel your MIA to IAD flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need further details, go to our Customer Service portal.

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*Available to One Key members.