$99 Cheap United flights Newark Liberty Intl. Airport (EWR) to Louisville (SDF)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap United Airlines return flights from $166 from EWR to SDF. Affordable one-way options from $99 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the least expensive months to jet off to Louisville with United Airlines. You could also find excellent prices on one-way and round-trip tickets in December.

For cheap United Airlines fares from Liberty Intl. Airport (EWR) to Louisville Intl. Airport (SDF), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the cost. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Take off on one of United Airlines’s 21 direct weekly flights from Liberty Intl. Airport (EWR) to Louisville Intl. Airport (SDF). To see what’s available, enter your origin, destination and dates and hit search. Next, apply the “Nonstop” and “Airline” filters.

From takeoff to touchdown, a nonstop United Airlines flight from Liberty Intl. Airport (EWR) to Louisville Intl. Airport (SDF) takes approximately 2h 30m.

Thursday has the most United Airlines flights from Liberty Intl. Airport (EWR) to Louisville Intl. Airport (SDF). With 3 daily departures, this is the best day of the week to find something that will work for your schedule.

Departing EWR at 11:35AM UTC-5, the first United Airlines flight to SDF lands at 2:00PM UTC-5. Traveling earlier in the day means you’re less likely to encounter cancellations or delays.* Prefer a later start? The last United Airlines flight from EWR to SDF departs at 7:55PM UTC-5 and touches down at 10:29PM UTC-5.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

United Airlines flights from Liberty Intl. Airport (EWR) to Louisville come in to land at Louisville Intl. Airport (SDF). This is the main entry point here.

A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to travel from EWR to SDF with United Airlines. Plus, when you sign up to our One Key™ program, you can earn OneKeyCash™* alongside United Airlines’s loyalty program earnings. It’s yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be onboard an Embraer 175 or an Embraer 170 when flying United Airlines from Liberty Intl. Airport (EWR) to Louisville Intl. Airport (SDF). However, keep in mind that a different aircraft may be used due to operational factors.

Changes are generally free within 24 hours of making a booking, but your airline may charge you after that. For further details about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to adjust your plans without being charged, apply the “No cancel fee” or “Changes included” filter when organizing your next adventure.