SDF - EWR

$167 Find Cheap Flights from Louisville to Newark Liberty Airport

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 5/23. 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
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Everything you should know

Cheapest round-trip
$239
Typical prices: $374-$224
United Airlines
Wed 7/29Sat 8/1
SDF - EWR • Non-stop
Cheapest one-way
$160
Typical prices: $149-$363
Allegiant Air
Sat 5/23
SDF - EWR • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom for comfort.
Spirit's Wi-Fi provides gate-to-gate connectivity.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $239 (round-trip)
Best reviews • 7.9 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 14m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $206 (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 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 29 - Sat, Aug 1
United Airlines Logo
1:07 pm - 3:30 pm
SDF
-
EWR
2h 23mnonstop
United Airlines Logo
8:25 pm - 10:50 pm
EWR
-
SDF
2h 25mnonstop
$239United Airlines
Sat, Jun 13 - Tue, Jun 16
United Airlines Logo
11:04 am - 1:20 pm
SDF
-
EWR
2h 16mnonstop
United Airlines Logo
6:00 am - 10:23 am
EWR
-
SDF
4h 23m
1 stop
$249United Airlines
Wed, Jun 10 - Sat, Jun 13
United Airlines Logo
6:25 am - 8:33 am
SDF
-
EWR
2h 08mnonstop
United Airlines Logo
8:29 pm - 10:54 pm
EWR
-
SDF
2h 25mnonstop
$254United Airlines
Tue, Jun 30 - Tue, Jul 7
American Airlines Logo
3:22 pm - 8:30 pm
SDF
-
EWR
5h 08m
1 stop
American Airlines Logo
7:29 pm - 12:34 am
EWR
-
SDF
5h 05m
1 stop
$258American Airlines
Wed, Sep 23 - Sat, Sep 26
Delta Logo
2:15 pm - 7:27 pm
SDF
-
EWR
5h 12m
1 stop
Delta Logo
8:30 am - 1:48 pm
EWR
-
SDF
5h 18m
1 stop
$259Delta
Sat, Jul 25 - 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
$260United Airlines
Wed, Jun 10 - Sat, Jun 13
United Airlines Logo
6:00 am - 9:56 am
SDF
-
EWR
3h 56m
1 stop
United Airlines Logo
8:29 pm - 10:54 pm
EWR
-
SDF
2h 25mnonstop
$264United Airlines
Sat, Jun 13 - Tue, Jun 16
United Airlines Logo
6:25 am - 8:33 am
SDF
-
EWR
2h 08mnonstop
United Airlines Logo
7:59 am - 2:37 pm
EWR
-
SDF
6h 38m
1 stop
$268United Airlines
Wed, Sep 23 - Sat, Sep 26
Delta Logo
12:53 pm - 5:47 pm
SDF
-
EWR
4h 54m
1 stop
Delta Logo
7:00 am - 1:48 pm
EWR
-
SDF
6h 48m
1 stop
$269Delta
Thu, Aug 6 - Sun, Aug 9
United Airlines Logo
6:30 am - 8:38 am
SDF
-
EWR
2h 08mnonstop
United Airlines Logo
6:00 am - 10:23 am
EWR
-
SDF
4h 23m
1 stop
$270United 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 June, where tickets cost $262 (return) on average. On the other hand, the most expensive months are January and April, where the average cost of round-trip tickets is $383 and $353 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 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 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.

Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Good to know

Low seasonJanuary
Cheapest flight$160
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly and prices are also 13% 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 3 days, the lowest price for a flight from Louisville to Newark Airport was $160 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 $298 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $308 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 $253 or less one-way and $345 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 4 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.
7.9
DeltaOverall score based on 8454 reviews
7.8Comfort
7.8Entertainment
8.1Boarding
7.2Food
8.5Crew
Airline reviews

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

10.0 ExcellentMurat, Apr 2026
ORD - LGA
Read more Delta reviews

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.

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.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

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

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

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

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.

This short sector between Miami and JFK was undertaken purely for business purposes, with efficiency as the primary objective rather than a full inflight experience. Overall, the journey met its intended purpose; however, the ground experience at Miami stood out significantly. During check-in, I was unable to link my frequent flyer details from Qatar Airways (oneworld alliance) through either the self-service kiosk or web check-in. The situation was handled exceptionally well by the check-in agent, who demonstrated remarkable ownership. She coordinated across multiple counters, ensured my frequent flyer number was correctly reflected, reissued the boarding pass, and confirmed that mileage accrual would be recognized. Additionally, she ensured the boarding pass reflected priority status, enabling a seamless priority check-in experience without delays. This level of proactive service was both commendable and impactful. Boarding and the inflight experience, operated by American Airlines under a codeshare arrangement, were efficient but largely transactional. While operational delivery was smooth, there was no visible recognition of oneworld frequent flyer status onboard. In comparison to the consistently personalized engagement typically experienced with Qatar Airways, this absence was noticeable—though understandably a potential limitation of codeshare alignment rather than a direct service shortfall. In summary, while the flight itself fulfilled its operational intent, the exceptional professionalism and commitment demonstrated at the Miami check-in counter was the defining highlight of this journey. Greater consistency in elite recognition across partner airlines would further enhance the overall experience.

Flight was fine, but not having WiFi was a major negative

Everything was excellent and I enjoyed myself. Thank for everything

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

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.

Found that the plane used for this short flight is smaller and therefore the seats are really squeezed tight.

Great just wish they always had WiFi on every flight couldn’t even purchase it

Everything was smooth sailing. Great crew, easy flight and was surprised with an upgraded seat. Thank you all!

The worst. My flight was canceled :-- by email! -- at 10pm, just 8 hours prior to departure. Normally, given the early departure time, I would've been asleep. I was lucky to be awake and to be able to take action. Even worse, it turns out that the flight wasn't canceled (confirmed because I was at the airport and saw it loading), Spirit just canceled my reservation, probably because I got such a good rate! Utterly appalling. Notably, Spirit did not inform you (Kayak) of the change, so I kept getting alerts from you.

Delayed over two hours. Only knew about a 30 minute delay in advance

The flight was a big joke very uncomfortable I had a horrible experience and I will never fly with them again everything about the flight was bogus and I’m not happy with it at all this experience makes me not want to fly ever again

Smooth flight staff very friendly and we arrived 15 mins earlier

Length of flight was fine Delay of over 3 hours was very bad!! Flight down was delayed 1.5 hours

I’m still waiting to get on the flight. No one knows what’s happening. The passengers have gotten no updates. We have been up all night and waiting at the airport. This is no way to operate and we should be refunded for this lack of respect for their passengers.

When I arrived at the airport at 4:00 in the morning, I was notified that I "hadn't paid" for my ticket (I had paid and had a boarding pass). Then I was told that while I had paid, the ticket was $600 more than it actually was, and that I needed to pay that so I could board. None of this was true, of course, but it took 20 minutes, two crew members behind the desk, and one on the phone to clear up.

I was double booked for my ticket- they have record of it and admitted to their error but wouldn’t let me board until I paid once again for the fare- have documentation of their mistake -

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

Information on your arrival and departure airports