$161 Cheap Flights from Washington (DCA) to Marion (MWA)

View $161 flight on Wed, Dec 3, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Marion, IL (MWA-Williamson County Regional)

Cheap Flights from Washington to Marion (DCA-MWA)

Prices were available within the past 7 days and start at $161 for one-way flights and $440 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Nov 8 - Mon, Nov 24
DCA
Washington
MWA
Marion
$440 Roundtrip, found 5 days ago
$440
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 8 from Washington to Marion, returning Mon, Nov 24, priced at $440 found 5 days ago
United
Wed, Nov 19 - Wed, Dec 10
DCA
Washington
MWA
Marion
$454 Roundtrip, found 5 days ago
$454
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 19 from Washington to Marion, returning Wed, Dec 10, priced at $454 found 5 days ago
United
Wed, Nov 12 - Tue, Dec 2
DCA
Washington
MWA
Marion
$464 Roundtrip, found 5 days ago
$464
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 12 from Washington to Marion, returning Tue, Dec 2, priced at $464 found 5 days ago
United
Mon, Nov 10 - Mon, Nov 24
DCA
Washington
MWA
Marion
$465 Roundtrip, found 5 days ago
$465
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 10 from Washington to Marion, returning Mon, Nov 24, priced at $465 found 5 days ago
United
Wed, Nov 19 - Sat, Dec 6
DCA
Washington
MWA
Marion
$474 Roundtrip, found 5 days ago
$474
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 19 from Washington to Marion, returning Sat, Dec 6, priced at $474 found 5 days ago
United
Fri, Nov 7 - Mon, Nov 24
DCA
Washington
MWA
Marion
$475 Roundtrip, found 5 days ago
$475
Roundtrip
found 5 days ago
Select United flight, departing Fri, Nov 7 from Washington to Marion, returning Mon, Nov 24, priced at $475 found 5 days ago
United
Wed, Nov 12 - Thu, Dec 4
DCA
Washington
MWA
Marion
$479 Roundtrip, found 5 days ago
$479
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 12 from Washington to Marion, returning Thu, Dec 4, priced at $479 found 5 days ago
United
Wed, Nov 19 - Sun, Dec 7
DCA
Washington
MWA
Marion
$489 Roundtrip, found 5 days ago
$489
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 19 from Washington to Marion, returning Sun, Dec 7, priced at $489 found 5 days ago
United
Sun, Nov 16 - Tue, Dec 2
DCA
Washington
MWA
Marion
$499 Roundtrip, found 5 days ago
$499
Roundtrip
found 5 days ago
Select United flight, departing Sun, Nov 16 from Washington to Marion, returning Tue, Dec 2, priced at $499 found 5 days ago
United
Tue, Nov 25 - Wed, Dec 17
DCA
Washington
MWA
Marion
$500 Roundtrip, found 5 days ago
$500
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 25 from Washington to Marion, returning Wed, Dec 17, priced at $500 found 5 days ago

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA) cost?
Lock in a cheap one-way flight from $161 or cheap return flight from $440 from Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA) 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 Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA)?
November is the least expensive month to fly from DCA to MWA. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DCA to MWA flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA)?
You'll have to hop on a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DCA to MWA?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA)?
To avoid potential delays on the Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA) route, aim to travel before 3 PM. Departures after this time are 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 Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA) last-minute?
Waiting until right before your break to book a ticket from DCA to MWA generally means paying more. While you may come across some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of landing a bargain.
Is it cheaper to book a DCA to MWA flight and hotel package?
You'll generally save money by booking a DCA to MWA 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 chosen your ideal accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Williamson County Regional Airport (MWA)?
You can usually cancel or reschedule your DCA to MWA flight. However, for bookings 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 if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Williamson County Regional
Roundtrip price
$440
Distance
652 mi

Book with confidence

Washington to Marion Flights

The cheapest times to fly from Washington to Marion

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

 

The best time to book a flight from Washington to Marion

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

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 Marion in 2025. You can also book with separate airlines for your outbound and return journeys, from $161 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 Marion 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 Marion 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 Marion Flights

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*Available to One Key members.