$110 Cheap Flights from Baltimore (BWI) to Louisville (SDF)

View $110 flight on Wed, Dec 10, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Louisville Intl. Airport (SDF)

Cheap Flights from Baltimore to Louisville (BWI-SDF)

Prices were available within the past 7 days and start at $110 for one-way flights and $224 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Dec 9 - Thu, Dec 11
BWI
Baltimore
SDF
Louisville
$224 Roundtrip, found 2 days ago
$224
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Dec 9 from Baltimore to Louisville, returning Thu, Dec 11, priced at $224 found 2 days ago
Southwest Airlines
Tue, Dec 2 - Sat, Dec 6
BWI
Baltimore
SDF
Louisville
$224 Roundtrip, found 8 hours ago
$224
Roundtrip
found 8 hours ago
Select Southwest Airlines flight, departing Tue, Dec 2 from Baltimore to Louisville, returning Sat, Dec 6, priced at $224 found 8 hours ago
Delta
Tue, Feb 10 - Tue, Feb 17
BWI
Baltimore
SDF
Louisville
$227 Roundtrip, found 21 hours ago
$227
Roundtrip
found 21 hours ago
Select Delta flight, departing Tue, Feb 10 from Baltimore to Louisville, returning Tue, Feb 17, priced at $227 found 21 hours ago
Southwest Airlines
Wed, Dec 17 - Thu, Dec 18
BWI
Baltimore
SDF
Louisville
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Dec 17 from Baltimore to Louisville, returning Thu, Dec 18, priced at $228 found 1 day ago
American Airlines
Thu, Dec 4 - Sun, Dec 7
BWI
Baltimore
SDF
Louisville
$229 Roundtrip, found 3 hours ago
$229
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, Dec 4 from Baltimore to Louisville, returning Sun, Dec 7, priced at $229 found 3 hours ago
United
Tue, Dec 2 - Sat, Dec 6
BWI
Baltimore
SDF
Louisville
$229 Roundtrip, found 8 hours ago
$229
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Dec 2 from Baltimore to Louisville, returning Sat, Dec 6, priced at $229 found 8 hours ago
Southwest Airlines
Wed, Dec 10 - Thu, Jan 8
BWI
Baltimore
SDF
Louisville
$230 Roundtrip, found 3 days ago
$230
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Dec 10 from Baltimore to Louisville, returning Thu, Jan 8, priced at $230 found 3 days ago
American Airlines
Sat, Jan 10 - Sat, Jan 17
BWI
Baltimore
SDF
Louisville
$231 Roundtrip, found 15 hours ago
$231
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Sat, Jan 10 from Baltimore to Louisville, returning Sat, Jan 17, priced at $231 found 15 hours ago
American Airlines
Thu, Dec 4 - Sun, Dec 7
BWI
Baltimore
SDF
Louisville
$232 Roundtrip, found 3 hours ago
$232
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, Dec 4 from Baltimore to Louisville, returning Sun, Dec 7, priced at $232 found 3 hours ago
Southwest Airlines
Wed, Dec 17 - Thu, Dec 18
BWI
Baltimore
SDF
Louisville
$233 Roundtrip, found 1 day ago
$233
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Dec 17 from Baltimore to Louisville, returning Thu, Dec 18, priced at $233 found 1 day ago

Find the cheapest month to fly from Baltimore (BWI) to Louisville (SDF)

September is typically the cheapest month to fly

From $137 - $414 per traveler.

Alternative airports near Louisville

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

Select flight to Louisville Intl. SDF. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $340
SDF
Louisville Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $340

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF) cost?
Grab a cheap one-way flight from $110 or cheap return flight from $224 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
December is the least expensive month to fly from BWI to SDF. Timing your trip outside of the busy season is often the key to finding a great deal.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
Take a nonstop flight with Southwest Airlines and travel straight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF).
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from BWI to SDF. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
When jetting out of Baltimore Washington Intl. Thurgood Marshall Airport (BWI), you'll have a choice from an average of 2 daily nonstop flights to Louisville Intl. Airport (SDF).
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
Flights between BWI and SDF are busiest at 11 AM. If you want a more relaxed atmosphere and potentially cheaper prices, look for a departure that's outside typical rush times.
What day of the week has the most flights from BWI to SDF?
Jet off on a Friday if you're after the best choice of flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF).
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
Hop on the earliest flight at around 11:00AM UTC-5, leaving from Baltimore Washington Intl. Thurgood Marshall Airport (BWI). You'll be flying for roughly 1h 55m, reaching Louisville Intl. Airport (SDF) at approximately 12:55PM UTC-5.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
It takes about 1 hour and 55 minutes to cover the 490 mi from BWI to SDF.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
To reach Louisville Intl. Airport (SDF) without delays, opt for a flight that takes off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Louisville from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Louisville Intl. Airport (SDF) is the only airport in Louisville with direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Browse the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF) last-minute?
Booking your flight from BWI to SDF shortly before your getaway is typically more expensive. However, if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a BWI to SDF flight and hotel package?
Compared with arranging flights and hotels separately, booking a BWI to SDF flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the stress out of planning your trip. Simply pick your flights and select from our wide range of hotels, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Louisville Intl. Airport (SDF)?
Typically, you can cancel or modify your BWI to SDF flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want more details, go to our Customer Service portal.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Louisville Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$223
Distance
493 mi
Average flight time
2 hours 21 mins

Book with confidence

Baltimore to Louisville Flights

The cheapest times to fly from Baltimore to Louisville

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

 

The best time to book a flight from Baltimore to Louisville

Sunday is one of the best days to book for cheap flights from Baltimore to Louisville: 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 Louisville

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 Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $110 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 Louisville 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 Louisville 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 Louisville Flights

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*Available to One Key members.