Title: Cheap Flights from Louisville (SDF) to Denver (DEN) - Expedia.ca ![Denver Colorado downtown with City Park](https://images.trvl-media.com/place/178254/7cc57818-0302-43a8-831e-86e04b8cc6a7.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 Louisville (SDF) to Denver (DEN) - [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 Add a place to stay Direct flights only ## Popular airlines from Louisville International Airport (SDF) to Denver International Airport (DEN) - ![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:sdf,to:den,departure:25/10/2025TANYT&leg2=from:den,to:sdf,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:sdf,to:den,departure:25/10/2025TANYT&leg2=from:den,to:sdf,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:sdf,to:den,departure:25/10/2025TANYT&leg2=from:den,to:sdf,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sdf,to:den,departure:25/10/2025TANYT&leg2=from:den,to:sdf,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) ![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) ## Find the cheapest month to fly from Louisville (SDF) to Denver (DEN) ### August is typically the cheapest month to fly From CA $193 - CA $622 per traveller. 0 Flight from Louisville to Denver (SDF - DEN) route information | Origin airport | Louisville Intl. | | --- | --- | | Destination airport | Denver Intl. | | Distance | 1633 km | ## Louisville to Denver Flights **The easy way to book your flights from Louisville to Denver**  With Expedia, it’s simple to find and book flights to Denver from Louisville 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 Air Canada, Southwest Airlines, United Airlines nonstop flights to Denver 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 Louisville to Denver today, tomorrow, or this week.   **Save dollars with cheap flights from Louisville Intl., SDF to Denver Intl., DEN**  Sort your search results by price to find great deals on your flight from Louisville to Denver—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Denver from Louisville 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 Denver   - 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 Denver from Louisville**  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. So book your flight to Denver with Expedia today. ## Frequently asked questions ### How much is a flight from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)? > Round-trip tickets from Louisville Muhammad Ali Intl. Airport to DEN start from . This is based on fares available 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 Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)? > Most flights can be cancelled online, but each air carrier has a different set of terms and conditions. If you do decide to cancel your flight, go to our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Louisville Muhammad Ali Intl. Airport to Denver Airport that have flexible change policies? > Plenty of carriers will allow you to reschedule your flight without a change fee. All you pay is the cost difference between flights. When searching for Louisville Muhammad Ali Intl. Airport to DIA airport flights, you'll see a "No change fees" box for you to tick. ### How many hours is the flight from SDF to DEN? > The flight time from Louisville Intl. Airport (SDF) to DEN is about 5 hours and 36 minutes. Put your earphones in, listen to a good podcast and your time in the air will whiz by. ### How far is the flight from SDF to Denver Airport? > The flight distance between Louisville Muhammad Ali Intl. Airport and DEN is 1,650 kilometres. Bring a drink, a snack and something to read. Keep yourself entertained and the time will fly by. ### Which airlines fly direct from Louisville Muhammad Ali Intl. Airport to Denver Intl. Airport (DEN)? > There are a few airlines that fly from Louisville Muhammad Ali Intl. Airport to DEN. United Airlines (UA) is a popular choice, offering 47 flights every month. Offering 30 flights a month along this route, Southwest Airlines (WN) is another good option. ### Are Louisville Muhammad Ali Intl. Airport to DIA airport flight tickets cheaper when they're purchased at the last minute? > Last-minute bookings from Louisville Muhammad Ali Intl. Airport to DEN can be hit-or-miss. You may be able to score a great bargain, but you could also miss out completely! If you'd prefer to start your travel planning early on, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines publish their prices so far in advance. Our suggestion? Check back often as updates are made regularly. ## Explore a world of travel with Expedia - Flights ### Flights - [Flights from Kitchener to Aurora](https://www.expedia.ca/lp/flights/10579/6629/kitchener-to-aurora) - [Flights from Calgary to Denver](https://www.expedia.ca/lp/flights/178245/178254/calgary-to-denver) - [Flights from Indianapolis to North Central Colorado](https://www.expedia.ca/lp/flights/178266/6056771/indianapolis-to-north-central-colorado) - [Flights from Miami to Aurora](https://www.expedia.ca/lp/flights/178286/6629/miami-to-aurora) - [Flights from New York to Aurora](https://www.expedia.ca/lp/flights/178293/6629/new-york-to-aurora) - [Flights from Ottawa to Aurora](https://www.expedia.ca/lp/flights/178296/6629/ottawa-to-aurora) - [Flights from Phoenix to Aurora](https://www.expedia.ca/lp/flights/178298/6629/phoenix-to-aurora) - [Flights from Seattle to Aurora](https://www.expedia.ca/lp/flights/178307/6629/seattle-to-aurora) - [Flights from Toronto to Aurora](https://www.expedia.ca/lp/flights/178314/6629/toronto-to-aurora) - [Flights from Vancouver to Aurora](https://www.expedia.ca/lp/flights/178315/6629/vancouver-to-aurora) - [Flights from Omaha to Aurora](https://www.expedia.ca/lp/flights/2670/6629/omaha-to-aurora) - [Flights from London to Denver](https://www.expedia.ca/lp/flights/4127/178254/london-to-denver) - [Flights from Waterloo (ALO) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/alo/cos/waterloo-to-colorado-springs) - [Flights from Watertown (ART) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/art/cos/watertown-to-colorado-springs) - [Flights from Atlanta (ATL) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/atl/cos/atlanta-to-colorado-springs) - [Flights from Austin (AUS) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/aus/cos/austin-to-colorado-springs) - [Flights from Newcastle (BEO) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/beo/cos/newcastle-to-colorado-springs) - [Flights from Bangor (BGR) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/bgr/cos/bangor-to-colorado-springs) - [Flights from Bellingham (BLI) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/bli/cos/bellingham-to-colorado-springs) - [Flights from Nashville (BNA) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/bna/cos/nashville-to-colorado-springs) - [Flights from Burlington (BTV) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/btv/cos/burlington-to-colorado-springs) - [Flights from Buffalo (BUF) to Denver (APA)](https://www.expedia.ca/lp/flights/buf/apa/buffalo-to-denver) - [Flights from Clarksville (CKV) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/ckv/cos/clarksville-to-colorado-springs) - [Flights from Columbus (CMH) to Broomfield (BJC)](https://www.expedia.ca/lp/flights/cmh/bjc/columbus-to-broomfield) - [Flights from Detroit (DTW) to Denver (APA)](https://www.expedia.ca/lp/flights/dtw/apa/detroit-to-denver) - [Flights from Devils Lake (DVL) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/dvl/cos/devils-lake-to-colorado-springs) - [Flights from Dubai (DXB) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/dxb/cos/dubai-to-colorado-springs) - [Flights from Panama City (ECP) to Colorado Springs (COS)](https://www.expedia.ca/lp/flights/ecp/cos/panama-city-to-colorado-springs) - [Flights from El Paso (ELP) to Denver (APA)](https://www.expedia.ca/lp/flights/elp/apa/el-paso-to-denver) - [Flights from Newark Liberty Intl. 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