$1,598 Cheap Flights from Seattle (SEA) to Mount Pleasant (MPN)

View $1,598 flight on Thu, Jan 8, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Mount Pleasant (MPN)

Cheap Flights from Seattle to Mount Pleasant (SEA-MPN)

Prices were available within the past 7 days and start at $1,598 for one-way flights and $2,594 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Jan 29 - Sat, Feb 14
SEA
Seattle
MPN
Mount Pleasant
$2,594 Roundtrip, found 5 days ago
$2,594
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jan 29 from Seattle to Mount Pleasant, returning Sat, Feb 14, priced at $2,594 found 5 days ago
Alaska Airlines
Wed, Jan 28 - Sat, Feb 14
SEA
Seattle
MPN
Mount Pleasant
$2,764 Roundtrip, found 5 days ago
$2,764
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Jan 28 from Seattle to Mount Pleasant, returning Sat, Feb 14, priced at $2,764 found 5 days ago
LATAM Airlines Group
Thu, Jan 29 - Sat, Feb 14
SEA
Seattle
MPN
Mount Pleasant
$2,769 Roundtrip, found 5 days ago
$2,769
Roundtrip
found 5 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 29 from Seattle to Mount Pleasant, returning Sat, Feb 14, priced at $2,769 found 5 days ago
LATAM Airlines Group
Fri, Jan 30 - Sat, Feb 14
SEA
Seattle
MPN
Mount Pleasant
$2,789 Roundtrip, found 5 days ago
$2,789
Roundtrip
found 5 days ago
Select LATAM Airlines Group flight, departing Fri, Jan 30 from Seattle to Mount Pleasant, returning Sat, Feb 14, priced at $2,789 found 5 days ago
LATAM Airlines Group
Wed, Jan 28 - Sat, Feb 14
SEA
Seattle
MPN
Mount Pleasant
$2,795 Roundtrip, found 5 days ago
$2,795
Roundtrip
found 5 days ago
Select LATAM Airlines Group flight, departing Wed, Jan 28 from Seattle to Mount Pleasant, returning Sat, Feb 14, priced at $2,795 found 5 days ago
United
Wed, Nov 19 - Sat, Dec 6
SEA
Seattle
MPN
Mount Pleasant
$2,805 Roundtrip, found 5 hours ago
$2,805
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Nov 19 from Seattle to Mount Pleasant, returning Sat, Dec 6, priced at $2,805 found 5 hours ago
United
Wed, Dec 10 - Sat, Dec 27
SEA
Seattle
MPN
Mount Pleasant
$2,826 Roundtrip, found 17 hours ago
$2,826
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Dec 10 from Seattle to Mount Pleasant, returning Sat, Dec 27, priced at $2,826 found 17 hours ago
LATAM Airlines Group
Thu, Jan 29 - Sat, Feb 14
SEA
Seattle
MPN
Mount Pleasant
$2,839 Roundtrip, found 5 days ago
$2,839
Roundtrip
found 5 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 29 from Seattle to Mount Pleasant, returning Sat, Feb 14, priced at $2,839 found 5 days ago
United
Thu, Dec 11 - Sat, Dec 27
SEA
Seattle
MPN
Mount Pleasant
$2,859 Roundtrip, found 17 hours ago
$2,859
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Dec 11 from Seattle to Mount Pleasant, returning Sat, Dec 27, priced at $2,859 found 17 hours ago
LATAM Airlines Group
Wed, Jan 28 - Sat, Feb 14
SEA
Seattle
MPN
Mount Pleasant
$2,865 Roundtrip, found 5 days ago
$2,865
Roundtrip
found 5 days ago
Select LATAM Airlines Group flight, departing Wed, Jan 28 from Seattle to Mount Pleasant, returning Sat, Feb 14, priced at $2,865 found 5 days ago
Delta
Thu, Nov 6 - Sat, Nov 22
SEA
Seattle
MPN
Mount Pleasant
$2,877 Roundtrip, found 17 hours ago
$2,877
Roundtrip
found 17 hours ago
Select Delta flight, departing Thu, Nov 6 from Seattle to Mount Pleasant, returning Sat, Nov 22, priced at $2,877 found 17 hours ago
United
Thu, Nov 20 - Sat, Dec 6
SEA
Seattle
MPN
Mount Pleasant
$2,900 Roundtrip, found 5 hours ago
$2,900
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Nov 20 from Seattle to Mount Pleasant, returning Sat, Dec 6, priced at $2,900 found 5 hours ago
Alaska Airlines
Thu, Oct 23 - Sat, Nov 8
SEA
Seattle
MPN
Mount Pleasant
$2,902 Roundtrip, found 5 hours ago
$2,902
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Thu, Oct 23 from Seattle to Mount Pleasant, returning Sat, Nov 8, priced at $2,902 found 5 hours ago
Alaska Airlines
Wed, Oct 22 - Sat, Nov 8
SEA
Seattle
MPN
Mount Pleasant
$2,918 Roundtrip, found 5 hours ago
$2,918
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Wed, Oct 22 from Seattle to Mount Pleasant, returning Sat, Nov 8, priced at $2,918 found 5 hours ago
LATAM Airlines Group
Thu, Jan 22 - Sat, Feb 7
SEA
Seattle
MPN
Mount Pleasant
$2,928 Roundtrip, found 5 days ago
$2,928
Roundtrip
found 5 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 22 from Seattle to Mount Pleasant, returning Sat, Feb 7, priced at $2,928 found 5 days ago
Delta
Thu, Nov 6 - Sat, Nov 22
SEA
Seattle
MPN
Mount Pleasant
$2,947 Roundtrip, found 5 hours ago
$2,947
Roundtrip
found 5 hours ago
Select Delta flight, departing Thu, Nov 6 from Seattle to Mount Pleasant, returning Sat, Nov 22, priced at $2,947 found 5 hours ago

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN) cost?
Grab a cheap one-way flight from $1,598 or cheap return flight from $2,594 from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN)?
Flying in January may help you find better deals, as it's the cheapest month for flights between SEA and MPN. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from SEA to MPN. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to MPN?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN)?
Opt for a flight from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**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 Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN) last-minute?
Booking your ticket from SEA to MPN right before your trip is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a SEA to MPN flight and hotel package?
Securing a SEA to MPN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Mount Pleasant Airport (MPN)?
In most cases, you're able to reschedule or cancel your SEA to MPN flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Mount Pleasant
Airlines serving
LATAM Airlines Group
Roundtrip price
$2,593
Distance
7824 mi

Book with confidence

Book with confidence

Seattle to Mount Pleasant Flights

The cheapest times to fly from Seattle 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 Seattle to Mount Pleasant are during the month of January. You can find some of the cheapest flights from Seattle to Mount Pleasant with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle to Mount Pleasant in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,598 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 Seattle 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 Seattle 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.

 

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