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$73+ Cheap flights from Baltimore to Louisville (BWI - SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SDF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Baltimore/Washington to Louisville Intl are usually found in August or March, booked 55 days in advance, depart on a Tuesday or Thursday and return on a Saturday

Cheap flight deals from Baltimore to Louisville

Cheapest flights from Baltimore to Louisville
Explore the most affordable flight options available from Baltimore to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:00 amBWI - SDF
1 stop3h 50mAmerican Airlines
Wed 1/217:14 pmSDF - BWI
1 stop4h 07mAmerican Airlines
Deal found 12/17$383
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:19 pmBWI - SDF
1 stop5h 11mUnited Airlines
Thu 1/12:00 pmSDF - BWI
1 stop7h 26mUnited Airlines
Deal found 12/17$393
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:30 amBWI - SDF
1 stop17h 29mSpirit Airlines
Sun 1/45:05 amSDF - BWI
2 stops32h 05mSpirit Airlines
Deal found 12/16$398
This Southwest deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:55 pmBWI - SDF
1 stop5h 50mSouthwest
Thu 1/16:45 amSDF - BWI
2 stops12h 55mSouthwest
Deal found 12/17$404
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:54 pmBWI - SDF
1 stop4h 20mAmerican Airlines
Sat 1/106:00 amSDF - BWI
1 stop4h 19mAmerican Airlines
Deal found 12/16$422
This Southwest deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:00 amBWI - SDF
Nonstop1h 50mSouthwest
Sun 1/45:35 pmSDF - BWI
Nonstop1h 35mSouthwest
Deal found 12/17$442
This Southwest deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:30 amBWI - SDF
2 stops7h 40mSouthwest
Sat 1/37:05 pmSDF - BWI
1 stop5h 20mSouthwest
Deal found 12/16$447
This Southwest deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:40 pmBWI - SDF
Nonstop1h 50mSouthwest
Thu 1/16:45 amSDF - BWI
2 stops12h 55mSouthwest
Deal found 12/15$453
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:15 amBWI - SDF
1 stop11h 13mUnited Airlines
Fri 12/2610:50 amSDF - BWI
1 stop6h 08mUnited Airlines
Deal found 12/17$462
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:50 pmBWI - SDF
1 stop4h 24mAmerican Airlines
Tue 12/237:24 pmSDF - BWI
1 stop4h 19mAmerican Airlines
Deal found 12/17$463

Find flight deals from Baltimore to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$173
(Kiwi.com)

One-way from

$73
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$408
Provider with most accurate pricing for Baltimore/Washington-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Louisville Intl flights.
Search Deals
From Baltimore/Washington to Louisville Intl
Search Deals
One-way flight from Baltimore/Washington to Louisville Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Baltimore to Louisville that are best for you.

Fly from

Baltimore

Fly to

Louisville

Route

Depart

Return

Price

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Mon 1/12

6:00 am-1:00 pm

1 stop7h 00m

Louisville Intl

Wed 1/14

1:55 pm-10:36 pm

1 stop8h 41m

$176

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Tue 2/3

6:20 am-2:41 pm

1 stop8h 21m

Louisville Intl

Thu 2/5

3:36 pm-11:59 pm

1 stop8h 23m

$182

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Mon 1/12

8:08 pm-2:41 pm

2 stops18h 33m

Louisville Intl

Wed 1/14

1:55 pm-11:47 pm

1 stop9h 52m

$199

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Tue 1/27

6:20 am-2:41 pm

1 stop8h 21m

Louisville Intl

Wed 1/28

1:55 pm-11:47 pm

1 stop9h 52m

$206

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Wed 1/14

5:50 pm-10:10 pm

1 stop4h 20m

Louisville Intl

Wed 1/21

5:35 am-7:15 am

Nonstop1h 40m

$243

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Wed 1/14

11:13 am-6:31 pm

1 stop7h 18m

Louisville Intl

Wed 1/21

7:14 pm-11:21 pm

1 stop4h 07m

$243

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Tue 1/27

5:18 pm-10:30 pm

1 stop5h 12m

Louisville Intl

Wed 1/28

8:29 am-2:11 pm

1 stop5h 42m

$243

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Tue 1/27

5:50 pm-10:10 pm

1 stop4h 20m

Louisville Intl

Wed 1/28

2:30 pm-4:05 pm

Nonstop1h 35m

$243

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 2/26

12:13 pm-8:40 am

1 stop20h 27m

Louisville Intl

Mon 3/2

1:19 pm-6:59 pm

1 stop29h 40m

$245

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Wed 3/11

10:55 am-12:45 pm

Nonstop1h 50m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 18 results
1
2

Compare providers for flights from Baltimore to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Louisville in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Louisville flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Baltimore-Louisville flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Baltimore-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Louisville flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Louisville

How far ahead should I book a flight from Baltimore to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Louisville. Price data was last updated on December 12, 2025.

The best time to book flights from Baltimore to Louisville is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Baltimore to Louisville?

Currently, February is the cheapest month in which you can book a flight from Baltimore to Louisville (average of $114). Flying from Baltimore to Louisville in November is currently the most expensive (average of $189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to SDF?

Find hourly flight availability from Baltimore to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Baltimore to Louisville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 53% versus a flight at noon.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated December 18, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Baltimore to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,005 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,091 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Baltimore to Louisville?

    If you book a flight from Baltimore to Louisville, you will be flying from Baltimore/Washington to Louisville Intl. Flights to Louisville Intl (SDF) from Baltimore/Washington (BWI) take 1h 50m for a nonstop flight. There is 1 flight from Baltimore/Washington to Louisville per day from 4 airlines.

  • How popular is this Baltimore to Louisville flight route?

    The Baltimore/Washington to Louisville Intl flight path was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Baltimore to Louisville?

    Departing from Baltimore to Louisville will take you 18h 33m. Baltimore and Louisville are separated by a distance of 493 mi.

  • What are the cheapest airlines flying from Baltimore to Louisville round-trip?

    Currently priced at $189, United Airlines will fly you from Baltimore to Louisville and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $195 and $231, respectively. Users have found that United Airlines is 40% cheaper than the other options available to this destination.

  • What are the cheapest flights from Baltimore to Louisville?

    The cheapest flight price from Baltimore to Louisville is $113. On average you can expect to pay $301. The most popular route, (Baltimore/Washington - Louisville Intl), can usually be booked for $176.

  • Can I find deals for flights from Baltimore to Louisville that include hotel bookings?

    Yes. In addition to deals on Baltimore to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Louisville.

  • Can I find deals for business class flights from Baltimore to Louisville?

    Yes. Cheapflights offers flight deals from Baltimore to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Louisville?

    Currently, February is the cheapest month in which you can book a flight from Baltimore to Louisville (average of $114). Flying from Baltimore to Louisville in November is currently the most expensive (average of $189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Top 4 airlines flying from Baltimore to Louisville

Discover the top 4 airlines that operate flights from Baltimore to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$291FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$195Average$310FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$231Average$538FlexibilityNo cancel feeOn-time71%
DeltaCheapest$268Average$358FlexibilityNo cancel feeOn-timeN/A

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