$45 Cheap Flights from Miami (MIA) to Washington (IAD)

View $45 flight on Sat, Jun 7, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

Cheap Flights from Miami to Washington (MIA-IAD)

Prices were available within the past 7 days and start at $45 for one-way flights and $94 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Jun 7 - Sun, Jun 8
MIA
Miami
IAD
Washington
$94 Roundtrip, found 7 hours ago
$94
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Jun 7 from Miami to Washington, returning Sun, Jun 8, priced at $94 found 7 hours ago
Frontier Airlines
Sat, May 31 - Sun, Jun 1
MIA
Miami
IAD
Washington
$98 Roundtrip, just found
$98
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 31 from Miami to Washington, returning Sun, Jun 1, priced at $98 just found
Frontier Airlines
Sat, Jun 7 - Mon, Jun 9
MIA
Miami
IAD
Washington
$104 Roundtrip, found 12 hours ago
$104
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Sat, Jun 7 from Miami to Washington, returning Mon, Jun 9, priced at $104 found 12 hours ago
Frontier Airlines
Thu, Jun 5 - Mon, Jun 9
MIA
Miami
IAD
Washington
$108 Roundtrip, found 1 hour ago
$108
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Jun 5 from Miami to Washington, returning Mon, Jun 9, priced at $108 found 1 hour ago
Frontier Airlines
Fri, Jul 4 - Sun, Jul 6
MIA
Miami
IAD
Washington
$110 Roundtrip, just found
$110
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Jul 4 from Miami to Washington, returning Sun, Jul 6, priced at $110 just found
Frontier Airlines
Wed, May 28 - Sat, Jun 7
MIA
Miami
IAD
Washington
$114 Roundtrip, found 10 hours ago
$114
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Wed, May 28 from Miami to Washington, returning Sat, Jun 7, priced at $114 found 10 hours ago
Frontier Airlines
Wed, May 28 - Sun, Jun 1
MIA
Miami
IAD
Washington
$118 Roundtrip, found 4 hours ago
$118
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, May 28 from Miami to Washington, returning Sun, Jun 1, priced at $118 found 4 hours ago
United
Tue, Jul 1 - Mon, Jul 14
MIA
Miami
IAD
Washington
$183 Roundtrip, just found
$183
Roundtrip
just found
Select United flight, departing Tue, Jul 1 from Miami to Washington, returning Mon, Jul 14, priced at $183 just found
American Airlines
Tue, Jun 17 - Sat, Jun 21
MIA
Miami
IAD
Washington
$251 Roundtrip, just found
$251
Roundtrip
just found
Select American Airlines flight, departing Tue, Jun 17 from Miami to Washington, returning Sat, Jun 21, priced at $251 just found
Delta
Wed, Oct 22 - Sat, Oct 25
MIA
Miami
IAD
Washington
$274 Roundtrip, found 1 day ago
$274
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 22 from Miami to Washington, returning Sat, Oct 25, priced at $274 found 1 day ago

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 $93. 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 flight leaving MIA on May 13 2025 and touching down at IAD. The price was last updated on April 22 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 $49 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 June 7 2025. Prices were last updated on April 22 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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