SDF - EWR

$109 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 8/6. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$239
Typical prices: $259-$443
United Airlines
Wed 7/15Wed 7/22
SDF - EWR • Non-stop
Cheapest one-way
$109
Typical prices: $183-$281
Multiple Airlines
Thu 8/6
SDF - EWR • 1 stop
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 $302 (round-trip)
Shortest trip • 3h 52m (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 24% 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
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Newark!
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 15 - Wed, Jul 22
United Airlines Logo
6:30 am - 8:38 am
SDF
-
EWR
2h 08mnonstop
United Airlines Logo
6:00 pm - 8:25 pm
EWR
-
SDF
2h 25mnonstop
$239United Airlines
Wed, Jul 22 - Sat, Jul 25
United Airlines Logo
11:44 am - 2:00 pm
SDF
-
EWR
2h 16mnonstop
United Airlines Logo
6:00 am - 10:23 am
EWR
-
SDF
4h 23m
1 stop
$249United Airlines
Tue, Jul 14 - Tue, Jul 21
United Airlines Logo
1:07 pm - 3:30 pm
SDF
-
EWR
2h 23mnonstop
United Airlines Logo
8:30 pm - 10:55 pm
EWR
-
SDF
2h 25mnonstop
$254United Airlines
Wed, Jul 29 - Tue, Aug 4
Delta Logo
10:00 am - 3:24 pm
SDF
-
EWR
5h 24m
1 stop
Delta Logo
6:59 pm - 12:34 am
EWR
-
SDF
5h 35m
1 stop
$259Delta
Tue, Jul 14 - Tue, Jul 21
United Airlines Logo
1:07 pm - 3:30 pm
SDF
-
EWR
2h 23mnonstop
United Airlines Logo
3:08 pm - 7:18 pm
EWR
-
SDF
4h 10m
1 stop
$264United Airlines
Thu, Aug 13 - Sun, Aug 16
United Airlines Logo
6:15 am - 8:28 am
SDF
-
EWR
2h 13mnonstop
United Airlines Logo
6:00 am - 10:18 am
EWR
-
SDF
4h 18m
1 stop
$268United Airlines
Fri, Oct 2 - Tue, Oct 6
American Airlines Logo
7:03 am - 1:30 pm
SDF
-
EWR
6h 27m
1 stop
American Airlines Logo
6:00 pm - 10:55 pm
EWR
-
SDF
4h 55m
1 stop
$274American Airlines
Fri, Sep 18 - Sun, Sep 20
United Airlines Logo
6:00 am - 9:59 am
SDF
-
EWR
3h 59m
1 stop
United Airlines Logo
6:00 am - 10:18 am
EWR
-
SDF
4h 18m
1 stop
$278United Airlines
Wed, Jul 8 - Sat, Jul 11
United Airlines Logo
1:07 pm - 3:30 pm
SDF
-
EWR
2h 23mnonstop
United Airlines Logo
6:00 am - 10:23 am
EWR
-
SDF
4h 23m
1 stop
$279United Airlines
Fri, Jul 24 - Sun, Jul 26
United Airlines Logo
6:00 am - 9:55 am
SDF
-
EWR
3h 55m
1 stop
United Airlines Logo
6:00 am - 10:23 am
EWR
-
SDF
4h 23m
1 stop
$280United Airlines
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 July, where the average cost of round-trip tickets is $389 and $354 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 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 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$109
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 11% 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 $109 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 $308 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 $324 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 $213 or less one-way and $394 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 8410 reviews
7.2Food
8.5Crew
8.1Boarding
7.8Comfort
7.8Entertainment
Airline reviews

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

2.0 MediocreMargaret, Jun 2026
MSY - LGA
Read more Delta reviews

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

Very easy to use and convenient, you can perform any action within the same portal

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

Landed without a gate ready. Plane is extremely old and dirty.

Pilots lied about waiting on “paperwork”. Sat in the plane for over an hour, waiting on some papers to be printed according to the pilot and then all of a sudden he says good news maintenance is finally on their way. Maybe they can fix it before we get our paperwork. Ended up missing my connection in LaGuardia and as a result, had a fly home to Lexington instead of the Louisville airport. Then paid $100 to uber to Louisville since it was midnight by the time I got in. I wish they would just be transparent with passengers sometimes and not try to beat around the bush on why things are delayed.

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.

Agency very bad had to cancelled my booking too many changes in the flight changed my flight to 1 week

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.

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

Our flight was repeatedly delayed for maintenance problems: scheduled for 9.30am, eventually delayed to 7pm! Very very inconvenient! AA should have provided a substitute plane much earlier.. On the other hand, Customer Service crew in Charlotte helped us to reach NY (LGA) by late afternoon. Thank you Patricia!! The actual flight was quick and very comfortable. As always a. excellent, professional crew. [no food on a a short hop).

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

Boarding gate at LAX was too crowded—two gates next to one another

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

It was really a terrific experience both going and returning on AA. Staff and crew were professional.

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

Information on your arrival and departure airports