Title: Cheap Flights from Waterloo (ALO) to Louisville (SDF) - Expedia.ca ![The Louisville, Kentucky skyline with pedestrian walkway in front](https://images.trvl-media.com/place/603002/bb7aa867-4a7a-49ff-b758-10a472246889.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Waterloo (ALO) to Louisville (SDF) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Waterloo, IA (ALO-Waterloo Regional) to Louisville International Airport (SDF) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:alo,to:sdf,departure:25/10/2025TANYT&leg2=from:sdf,to:alo,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:alo,to:sdf,departure:25/10/2025TANYT&leg2=from:sdf,to:alo,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:alo,to:sdf,departure:25/10/2025TANYT&leg2=from:sdf,to:alo,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:alo,to:sdf,departure:25/10/2025TANYT&leg2=from:sdf,to:alo,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:alo,to:sdf,departure:25/10/2025TANYT&leg2=from:sdf,to:alo,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:alo,to:sdf,departure:25/10/2025TANYT&leg2=from:sdf,to:alo,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:alo,to:sdf,departure:25/10/2025TANYT&leg2=from:sdf,to:alo,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Frequently asked questions ### How much is a flight from Waterloo Regional Airport (ALO) to Louisville Intl. Airport (SDF)? > Round-trip flights between Waterloo Regional Airport (ALO) and Louisville Muhammad Ali Intl. Airport start from . This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Waterloo Regional Airport to Louisville Muhammad Ali Intl. Airport? > Most flights can be conveniently cancelled online, but whether you are charged a fee differs between airlines. If you do need to cancel your vacation, follow the instructions in the [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Waterloo Regional Airport to SDF that have flexible change policies? > Select our "No change fees" filter to find flexible travel options for your flight from ALO to Louisville Intl. Airport (SDF). This allows you to secure a good price in advance and still have the freedom to make changes without any extra fees. If the new flight costs more, you'll just cover the difference. ### How many hours is the flight from ALO to Louisville Muhammad Ali Intl. Airport? > It only takes an average of 2 hours and 48 minutes to travel from Waterloo Regional Airport (ALO) to Louisville Muhammad Ali Intl. Airport. Buckle up and get comfortable — but not too comfortable. You'll be in Louisville in no time. ### How far is the flight from Waterloo Regional Airport (ALO) to SDF? > You won't need a lengthy novel for this flight — it's only 740 kilometres from Waterloo to Louisville. Find your seat, get comfortable and you'll be in Louisville in no time. ### Which airlines fly direct from Waterloo Regional Airport (ALO) to Louisville Muhammad Ali Intl. Airport? > There are no direct flights, so you'll need to make at least one stop between Waterloo Regional Airport (ALO) and Louisville Muhammad Ali Intl. Airport. Take advantage of the layover time to stretch your legs and grab a coffee. ### Are ALO to Louisville Muhammad Ali Intl. Airport flight tickets cheaper when they're purchased at the last minute? > Booking your trip from Waterloo Regional Airport to SDF last minute could save you some serious cash. However, it could end up costing a great deal more! If you'd rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated on Expedia all the time. ## Travel information | Origin airport | Waterloo Regional | | --- | --- | | Destination airport | Louisville Intl. | | Distance | 739 km | ## Book with confidence ### Waterloo to Louisville Flights **The easy way to book your flights from Waterloo to Louisville**  With Expedia, it’s simple to find and book flights to Louisville from Waterloo whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Louisville Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Waterloo to Louisville today, tomorrow, or this week.   **Save dollars with cheap flights from Waterloo Regional, ALO to Louisville Intl., SDF**  Sort your search results by price to find great deals on your flight from Waterloo to Louisville—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Louisville from Waterloo currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Louisville   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Louisville from Waterloo**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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