$149 Cheap Flights from Baltimore (BWI) to Marion (MWA)

View $149 flight on Fri, Oct 31, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Marion, IL (MWA-Williamson County Regional)

Cheap Flights from Baltimore to Marion (BWI-MWA)

Prices were available within the past 7 days and start at $149 for one-way flights and $356 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 24 - Thu, Nov 27
BWI
Baltimore
MWA
Marion
$356 Roundtrip, found 3 days ago
$356
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 24 from Baltimore to Marion, returning Thu, Nov 27, priced at $356 found 3 days ago
United
Fri, Oct 31 - Wed, Nov 5
BWI
Baltimore
MWA
Marion
$428 Roundtrip, found 1 day ago
$428
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Baltimore to Marion, returning Wed, Nov 5, priced at $428 found 1 day ago
American Airlines
Tue, Oct 28 - Tue, Nov 4
BWI
Baltimore
MWA
Marion
$445 Roundtrip, found 1 day ago
$445
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Oct 28 from Baltimore to Marion, returning Tue, Nov 4, priced at $445 found 1 day ago
United
Fri, Oct 31 - Mon, Nov 3
BWI
Baltimore
MWA
Marion
$478 Roundtrip, found 1 day ago
$478
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Baltimore to Marion, returning Mon, Nov 3, priced at $478 found 1 day ago
United
Fri, Nov 21 - Sun, Nov 23
BWI
Baltimore
MWA
Marion
$488 Roundtrip, found 3 days ago
$488
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 21 from Baltimore to Marion, returning Sun, Nov 23, priced at $488 found 3 days ago
United
Mon, Nov 24 - Fri, Nov 28
BWI
Baltimore
MWA
Marion
$501 Roundtrip, found 3 days ago
$501
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 24 from Baltimore to Marion, returning Fri, Nov 28, priced at $501 found 3 days ago
United
Fri, Oct 31 - Sat, Nov 1
BWI
Baltimore
MWA
Marion
$508 Roundtrip, found 1 day ago
$508
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Baltimore to Marion, returning Sat, Nov 1, priced at $508 found 1 day ago
United
Fri, Oct 31 - Fri, Nov 7
BWI
Baltimore
MWA
Marion
$513 Roundtrip, found 1 day ago
$513
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Baltimore to Marion, returning Fri, Nov 7, priced at $513 found 1 day ago
United
Fri, Nov 21 - Sun, Nov 23
BWI
Baltimore
MWA
Marion
$525 Roundtrip, found 3 days ago
$525
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 21 from Baltimore to Marion, returning Sun, Nov 23, priced at $525 found 3 days ago
United
Fri, Nov 21 - Sun, Nov 23
BWI
Baltimore
MWA
Marion
$528 Roundtrip, found 3 days ago
$528
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 21 from Baltimore to Marion, returning Sun, Nov 23, priced at $528 found 3 days ago

Alternative airports near Marion

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

Select flight to Williamson County Regional MWA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $560
MWA
Williamson County Regional
CheapestClosest
Average driving time to city center8 min
Flights from $560

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA) cost?
Lock in a cheap one-way flight from $149 or cheap return flight from $356 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA)?
The cheapest month to fly from BWI to MWA is November, when demand is low. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from BWI to MWA. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA)?
Direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BWI to MWA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA)?
To avoid possible delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA) last-minute?
Waiting until just before your departure to book a ticket from BWI to MWA often results in higher prices. While you may come across some last-minute offers, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book a BWI to MWA flight and hotel package?
Booking a BWI to MWA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Williamson County Regional Airport (MWA)?
If you booked your BWI to MWA flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Williamson County Regional
Roundtrip price
$356
Distance
674 mi

Book with confidence

Baltimore to Marion Flights

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

 

The best time to book a flight from Baltimore to Marion

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Marion in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 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 Baltimore 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 Baltimore 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.

 

Baltimore to Marion Flights

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*Available to One Key members.