SDF - EWR

$156 Find Cheap Flights from Louisville to Newark Liberty Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Newark departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Newark Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Newark, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Newark, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$239
Typical prices: $277-$394
United Airlines
Wed 7/29Sat 8/1
SDF - EWR • Non-stop
Cheapest one-way
$156
Typical prices: $183-$413
Allegiant Air
Fri 8/14
SDF - EWR • 2 stops
Top airlines
Cheapest • from $239 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 2h 13m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $298 (round-trip)
Shortest trip • 3h 49m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 14% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Louisville to Newark (SDF-EWR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Newark that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Newark

Wed, Jul 29 - Sat, Aug 1
United Airlines Logo
6:30 am - 8:38 am
SDF
-
EWR
2h 08mnonstop
United Airlines Logo
8:29 pm - 10:54 pm
EWR
-
SDF
2h 25mnonstop
$239United Airlines
Fri, Aug 14 - Mon, Aug 17
United Airlines Logo
6:00 am - 9:59 am
SDF
-
EWR
3h 59m
1 stop
United Airlines Logo
8:33 pm - 10:59 pm
EWR
-
SDF
2h 26mnonstop
$249United Airlines
Mon, Jul 20 - Mon, Jul 27
United Airlines Logo
1:08 pm - 3:31 pm
SDF
-
EWR
2h 23mnonstop
United Airlines Logo
6:21 pm - 8:46 pm
EWR
-
SDF
2h 25mnonstop
$254United Airlines
Wed, Jul 29 - Tue, Aug 4
Delta Logo
8:10 am - 3:24 pm
SDF
-
EWR
7h 14m
1 stop
Delta Logo
6:59 pm - 12:34 am
EWR
-
SDF
5h 35m
1 stop
$259Delta
Sat, Jul 18 - Thu, Aug 20
United Airlines Logo
7:55 pm - 12:53 am
SDF
-
EWR
4h 58m
1 stop
United Airlines Logo
8:33 pm - 10:59 pm
EWR
-
SDF
2h 26mnonstop
$264United Airlines
Sat, Nov 7 - Sun, Nov 8
United Airlines Logo
6:20 am - 8:33 am
SDF
-
EWR
2h 13mnonstop
United Airlines Logo
8:55 pm - 11:28 pm
EWR
-
SDF
2h 33mnonstop
$265United Airlines
Fri, Jul 24 - Mon, Jul 27
United Airlines Logo
6:30 am - 8:38 am
SDF
-
EWR
2h 08mnonstop
United Airlines Logo
8:25 pm - 10:50 pm
EWR
-
SDF
2h 25mnonstop
$267United Airlines
Fri, Jul 24 - Mon, Jul 27
United Airlines Logo
6:00 am - 9:55 am
SDF
-
EWR
3h 55m
1 stop
United Airlines Logo
8:25 pm - 10:50 pm
EWR
-
SDF
2h 25mnonstop
$268United Airlines
Fri, Oct 2 - Mon, Oct 5
United Airlines Logo
6:00 am - 9:57 am
SDF
-
EWR
3h 57m
1 stop
United Airlines Logo
9:23 pm - 11:49 pm
EWR
-
SDF
2h 26mnonstop
$273United Airlines
Sat, Sep 12 - Sun, Sep 20
Delta Logo
7:05 am - 2:13 pm
SDF
-
EWR
7h 08m
1 stop
Delta Logo
6:00 am - 9:52 am
EWR
-
SDF
3h 52m
1 stop
$274Delta
Booking Insights

KAYAK's insights & trends for Louisville to Newark flights

Get data-powered insights and trends into flights from Louisville to Newark to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Louisville to Newark Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Louisville to Newark Airport departing in July.

What’s the cheapest day of the week to fly from Louisville to Newark Liberty Airport?

The average price of all round-trip flights from Louisville to Newark Airport clicked on KAYAK for each day over the last 12 months.

For Louisville to Newark Liberty Airport, Saturday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Newark Liberty Airport back to Louisville, the best deals are generally found on Saturday, with Monday being the most expensive.

What is the cheapest month to fly from Louisville to Newark Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Newark Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Newark Airport is March, where tickets cost $279 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $389 and $384 respectively.

Can I save money by flying with a layover from Louisville to Newark Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $319 on average.

How far in advance should I book a flight from Louisville to Newark Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Newark Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to Newark Airport, you should book around 3 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Louisville to Newark

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonJanuary
Cheapest flight$156
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Louisville to Newark Liberty Airport

When to book flights from Louisville to Newark

Are your dates flexible? Find out the best times to travel from Louisville to Newark based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Louisville to Newark Liberty Airport flights

  • What is the cheapest flight from Louisville to Newark Airport?

    In the last 5 days, the lowest price for a flight from Louisville to Newark Airport was $156 for a one-way ticket and $239 for a round-trip.

  • Do I need a passport to fly between Louisville and Newark Liberty Airport?

    No

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Newark Liberty Airport?

    Delta, American Airlines, and JetBlue offer inflight Wi-Fi service on the Louisville to Newark Liberty Airport flight route.

  • Which aircraft models fly most regularly from Louisville to Newark Liberty Airport?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Louisville to Newark Liberty Airport flight route.

  • Which airline alliances offer flights from Louisville to Newark Liberty Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Louisville and Newark Liberty Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Louisville to Newark Liberty Airport?

    There are nonstop flights from Louisville to Newark Liberty Airport on a daily basis.

  • Which is the best airline for flights from Louisville to Newark, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Louisville to Newark are Delta and United Airlines. With an average price for the route of $320 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $325 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Louisville to Newark Liberty Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Newark Liberty Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Newark Liberty Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Newark Liberty Airport from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Newark Liberty Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Newark Liberty Airport with an airline and back to Louisville with another airline. Booking your flights between Louisville and EWR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Newark Liberty Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Newark Liberty Airport from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Louisville to Newark Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $293 or less one-way and $379 or less round-trip.

Prefer to fly direct from Louisville to Newark Liberty Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Louisville Intl to Newark.
Find which airlines fly direct from Louisville Intl Airport to Newark Airport, which days they fly and book direct flights.

Direct departures

Louisville Intl to Newark

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Newark to Louisville Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Louisville to Newark

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Newark. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Newark? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8449 reviews
7.8Entertainment
7.2Food
8.5Crew
8.1Boarding
7.8Comfort
Airline reviews

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

2.0 MediocreEdward, Mar 2026
ATL - EWR
Read more Delta reviews

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

The seats weren’t reclining even though it wasn’t as exit seat

It was good because we traveled without luggage, carry on only.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

The crew was very polite as I have a few handicaps and everything was made pleasant. Check-in was easy as I was brought on board by the wheelchair assistant. One flight attendant did make sure my personal item was carefully stored under the seat in front of me. I was made to feel welcome as a customer as I made my first trip with a few disabilities. Entertainment and wifi worked quite well. The only food service were snacks and drinks. Those were okay. Overall it was a very smooth flight and encouraged me to use Delta again.

Bad crew with full of attitude, bad plane. Pls get some new planes. No food, no drinks nothing

Boarding was easy. Gate agent was great! I have flown at this time before and they always make the announcement that the overhead bins are already full or my carry on is subject to plane-side tagging. Never fails. A bigger plane with more overhead space would be better. Overall a great flight

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Flights were on time actually early service was good and crew cheerful

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

OK, we were delayed and had to de plane and reboard.

Both my flight where delayed Had 25min to make it to my transfer flight

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Flight had mechanical issues and it was delayed 30 mins - some of us boarded and then had to deplane.

Flight was delayed 5 hours. Initial reason for delay was 'maintenance' - which makes sense. Then, the additional 2 hours continued to say it was maintenance - when I know EWR had a 2 hour delay. AA did not say that. Additionally, when boarding, there was only one agent at the counter for a long time - until another came to help. After boarding, we had to wait another 45 minutes due to 'no catering'. So while we waited for catering, AA continued to board additional passengers - which seemed odd - and raised questions about what really was going on. I sat in First Class. During the flight, the flight crew allowed a significant number of non-First Class passengers to use the front bathroom - which created a very crowded environment in First Class which was uncomfortable. This also delayed First Class passengers from using the bathroom. Overall, horrible experience.

Returned home with a blood clot from flight homes and the uncomfortable aircraft I was on.

Seat was VERY uncomfortable. Flight was delayed and then boarded slowly. The crew was super helpful with boarding and supporting maximizing the luggage in the overhead.

Absolutely terrible. Would never fly American again. 2 deplaned incidents and delayed by close to 24 hours. $12 meal voucher for first class passengers was an insult to the injury. Pathetic.

Delayed, no updates, had a rewards number but was not working

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

They needed to de-ice the plane. Apparently airlines have a problem keeping their de-icing vehicles in good repair. After we backed away from the gate we sat and didn't move for nearly an hour. Nearly an HOUR with minimal communication from the flight crew. Eventually the sun took care of what American Airlines could not and melted the minimal ice. We finally took of a hour late which, in turn, jacked up our connection in Chicago.

Everything you need to know for your flight from Louisville to Newark

Information on your arrival and departure airports