Cheap Flights from Washington (IAD) to Mount Pleasant (MPN)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Mount Pleasant (MPN)

Cheap Flights from Washington to Mount Pleasant (IAD-MPN)

Prices were available within the past 7 days and start at for one-way flights and $2,048 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Nov 6 - Sat, Nov 22
IAD
Washington
MPN
Mount Pleasant
$2,048 Roundtrip, found 5 days ago
$2,048
Roundtrip
found 5 days ago
Select United flight, departing Thu, Nov 6 from Washington to Mount Pleasant, returning Sat, Nov 22, priced at $2,048 found 5 days ago
United
Thu, Oct 23 - Sat, Nov 1
IAD
Washington
MPN
Mount Pleasant
$2,053 Roundtrip, found 7 hours ago
$2,053
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Oct 23 from Washington to Mount Pleasant, returning Sat, Nov 1, priced at $2,053 found 7 hours ago
United
Wed, Nov 5 - Sat, Nov 22
IAD
Washington
MPN
Mount Pleasant
$2,062 Roundtrip, found 5 days ago
$2,062
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 5 from Washington to Mount Pleasant, returning Sat, Nov 22, priced at $2,062 found 5 days ago
United
Wed, Oct 22 - Sat, Nov 1
IAD
Washington
MPN
Mount Pleasant
$2,183 Roundtrip, found 7 hours ago
$2,183
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 22 from Washington to Mount Pleasant, returning Sat, Nov 1, priced at $2,183 found 7 hours ago
United
Thu, Nov 6 - Sat, Nov 22
IAD
Washington
MPN
Mount Pleasant
$2,232 Roundtrip, found 5 hours ago
$2,232
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Nov 6 from Washington to Mount Pleasant, returning Sat, Nov 22, priced at $2,232 found 5 hours ago
United
Wed, Nov 5 - Sat, Nov 22
IAD
Washington
MPN
Mount Pleasant
$2,246 Roundtrip, found 5 hours ago
$2,246
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Nov 5 from Washington to Mount Pleasant, returning Sat, Nov 22, priced at $2,246 found 5 hours ago
United
Thu, Nov 13 - Sat, Nov 22
IAD
Washington
MPN
Mount Pleasant
$2,608 Roundtrip, found 7 hours ago
$2,608
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Nov 13 from Washington to Mount Pleasant, returning Sat, Nov 22, priced at $2,608 found 7 hours ago
United
Thu, Oct 16 - Sat, Oct 25
IAD
Washington
MPN
Mount Pleasant
$2,682 Roundtrip, found 8 hours ago
$2,682
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 16 from Washington to Mount Pleasant, returning Sat, Oct 25, priced at $2,682 found 8 hours ago
LATAM Airlines Group
Wed, Nov 5 - Sat, Nov 15
IAD
Washington
MPN
Mount Pleasant
$2,742 Roundtrip, found 7 hours ago
$2,742
Roundtrip
found 7 hours ago
Select LATAM Airlines Group flight, departing Wed, Nov 5 from Washington to Mount Pleasant, returning Sat, Nov 15, priced at $2,742 found 7 hours ago
United
Thu, Oct 16 - Sat, Oct 25
IAD
Washington
MPN
Mount Pleasant
$2,752 Roundtrip, found 8 hours ago
$2,752
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 16 from Washington to Mount Pleasant, returning Sat, Oct 25, priced at $2,752 found 8 hours ago
United
Wed, Oct 8 - Sat, Oct 18
IAD
Washington
MPN
Mount Pleasant
$2,793 Roundtrip, found 7 hours ago
$2,793
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 8 from Washington to Mount Pleasant, returning Sat, Oct 18, priced at $2,793 found 7 hours ago
LATAM Airlines Group
Wed, Nov 26 - Sat, Dec 6
IAD
Washington
MPN
Mount Pleasant
$2,862 Roundtrip, found 7 hours ago
$2,862
Roundtrip
found 7 hours ago
Select LATAM Airlines Group flight, departing Wed, Nov 26 from Washington to Mount Pleasant, returning Sat, Dec 6, priced at $2,862 found 7 hours ago
United
Thu, Oct 9 - Sat, Oct 18
IAD
Washington
MPN
Mount Pleasant
$3,003 Roundtrip, found 7 hours ago
$3,003
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Oct 9 from Washington to Mount Pleasant, returning Sat, Oct 18, priced at $3,003 found 7 hours ago
Aeromexico
Wed, Oct 15 - Sat, Oct 25
IAD
Washington
MPN
Mount Pleasant
$3,782 Roundtrip, found 7 hours ago
$3,782
Roundtrip
found 7 hours ago
Select Aeromexico flight, departing Wed, Oct 15 from Washington to Mount Pleasant, returning Sat, Oct 25, priced at $3,782 found 7 hours ago
United
Thu, Oct 16 - Sat, Oct 25
IAD
Washington
MPN
Mount Pleasant
$3,899 Roundtrip, found 7 hours ago
$3,899
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Oct 16 from Washington to Mount Pleasant, returning Sat, Oct 25, priced at $3,899 found 7 hours ago

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN) cost?
Get a cheap one-way flight or cheap return flight from $2,048 from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN)?
The cheapest month to fly from IAD to MPN is November, when demand is low. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN)?
To find the cheapest airline flying from IAD to MPN, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN)?
Nonstop flights from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to MPN?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN)?
Book a flight from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be 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.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN) last-minute?
Booking your plane ticket from IAD to MPN just before your getaway is typically more expensive. However, if you're flexible with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book an IAD to MPN flight and hotel package?
Booking an IAD to MPN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Mount Pleasant Airport (MPN)?
It's usually possible to reschedule or cancel your IAD to MPN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Mount Pleasant
Airlines serving
LATAM Airlines Group
Roundtrip price
$2,047
Distance
6375 mi

Book with confidence

Book with confidence

Washington to Mount Pleasant Flights

The cheapest times to fly from Washington to Mount Pleasant

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 Washington to Mount Pleasant are during the month of November. You can find some of the cheapest flights from Washington to Mount Pleasant with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Mount Pleasant

Sunday is one of the best days to book for cheap flights from Washington to Mount Pleasant: 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 Washington to Mount Pleasant

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 Washington to Mount Pleasant in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Washington to Mount Pleasant 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 Washington to Mount Pleasant 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.

 

Washington to Mount Pleasant Flights
*Available to One Key members.