What is the cheapest airline that flies from Louisville Intl to United States?

Allegiant Air, United Airlines, and American Airlines are the most popular carriers operating from Louisville Intl to United States

What airlines fly to United States?

Frontier, Delta and American Airlines are the top three most popular airlines that fly to United States from Louisville according to our data. Frontier is the first choice among our users, with 37% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 8 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

How many flights depart from Louisville to United States on average per week?

As of October 2025, there are 437 flights per week flying from Louisville to United States. The most common day of the week flights depart is Thu, with 22% of flights taking off on this day.

How many flights depart from Louisville to United States on average per day?

As of October 2025, 62 flights take off from Louisville and land in United States each day. The most common flight departure time for this route is 12:00PM, with 53% of daily flights taking off in the afternoon.

When did momondo last update prices for flights from Louisville Intl Airport to United States?

Prices for flights from Louisville Intl Airport to United States refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to United States?

The number of operators available for flights from Louisville Intl Airport to United States is 6 as of October 2025.

How old do you have to be to fly from Louisville Intl Airport to United States?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to United States.

What documentation or ID do you need to fly to United States?

The required travel and health documents for your United States trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United States. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$46 Cheap Flights from Louisville to the United States in 2025/26

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:46 pm - 10:15 pmSDF-FLL

2h 29mnonstop

6:30 am - 9:04 amFLL-SDF

2h 34mnonstop

$86Allegiant Air

Find Deal

lun., nov. 10 - vie., nov. 14

6:54 pm - 9:32 pmSDF-FLL

2h 38mnonstop

3:23 pm - 6:04 pmFLL-SDF

2h 41mnonstop

$91Allegiant Air

Find Deal

lun., feb. 2 - vie., feb. 6

7:00 am - 7:40 amSDF-ORD

1h 40mnonstop

1:55 pm - 4:27 pmORD-SDF

1h 32mnonstop

$101United Airlines

Find Deal

jue., nov. 27 - jue., nov. 27

5:45 pm - 7:55 pmSDF-MCO

2h 10mnonstop

8:50 am - 11:10 amMCO-SDF

2h 20mnonstop

$109Southwest

Find Deal

lun., ene. 12 - mar., ene. 13

7:00 am - 7:40 amSDF-ORD

1h 40mnonstop

5:54 pm - 8:28 pmORD-SDF

1h 34mnonstop

$127United Airlines

Find Deal

sáb., dic. 6 - lun., dic. 8

7:38 am - 8:22 amSDF-ORD

1h 44mnonstop

9:50 am - 12:30 pmORD-SDF

1h 40mnonstop

$128American Airlines

Find Deal

sáb., dic. 6 - dom., dic. 7

7:25 am - 8:05 amSDF-ORD

1h 40mnonstop

8:20 pm - 10:56 pmORD-SDF

1h 36mnonstop

$133American Airlines

Find Deal

jue., nov. 13 - mié., dic. 3

6:40 pm - 10:30 pmSDF-LAS

6h 50m1 stop

5:55 pm - 12:30 amLAS-SDF

3h 35mnonstop

$153Southwest

Find Deal

lun., feb. 23 - vie., feb. 27

6:00 am - 12:06 pmSDF-ORD

7h 06m1 stop

5:59 pm - 11:59 pmORD-SDF

5h 00m1 stop

$161Delta

Find Deal

sáb., dic. 6 - dom., dic. 7

7:50 am - 4:57 pmSDF-ORD

10h 07m2 stops

6:00 am - 11:57 amORD-SDF

4h 57m1 stop

$162Delta

Find Deal

sáb., dic. 6 - dom., dic. 7

American Airlines flights from Louisville to United States

Our best American Airlines deals on Louisville to United States flight tickets

American Airlines

Dec 6

SDF7:38 amLouisville Intl

1h 44m

ORD8:22 amChicago O'Hare Intl

Dec 7

ORD9:50 amChicago O'Hare Intl

1h 40m

SDF12:30 pmLouisville Intl

$128

Find similar

American Airlines

Nov 13

SDF7:25 amLouisville Intl

1h 40m

ORD8:05 amChicago O'Hare Intl

Dec 3

ORD8:20 pmChicago O'Hare Intl

1h 36m

SDF10:56 pmLouisville Intl

$133

Find similar

American Airlines

Jan 21

SDF7:40 amLouisville Intl

10h 40m

2 stops

LAS3:20 pmLas Vegas Harry Reid Intl

Jan 25

LAS11:59 pmLas Vegas Harry Reid Intl

7h 03m

1 stop

SDF10:02 amLouisville Intl

$154

Find similar

Delta flights from Louisville to United States

Our best Delta deals on Louisville to United States flight tickets

Delta

Dec 6

SDF6:00 amLouisville Intl

7h 06m

1 stop

ORD12:06 pmChicago O'Hare Intl

Dec 7

ORD5:59 pmChicago O'Hare Intl

5h 00m

1 stop

SDF11:59 pmLouisville Intl

$161

Find similar

Delta

Dec 6

SDF7:50 amLouisville Intl

10h 07m

2 stops

ORD4:57 pmChicago O'Hare Intl

Dec 7

ORD6:00 amChicago O'Hare Intl

4h 57m

1 stop

SDF11:57 amLouisville Intl

$162

Find similar

Delta

Dec 15

SDF7:15 amLouisville Intl

5h 46m

1 stop

ORD12:01 pmChicago O'Hare Intl

Dec 18

ORD9:49 amChicago O'Hare Intl

6h 27m

1 stop

SDF5:16 pmLouisville Intl

$165

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Louisville to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleFort Lauderdale

SDF - FLL

SDFFLL

Louisville Intl

lun. 11/10

7:46 pm-10:15 pm

Nonstop2h 29m

Fort Lauderdale

vie. 11/14

6:30 am-9:04 am

Nonstop2h 34m

$86

LouisvilleFort Lauderdale

SDF - FLL

SDFFLL

Louisville Intl

lun. 2/2

6:54 pm-9:32 pm

Nonstop2h 38m

Fort Lauderdale

vie. 2/6

3:23 pm-6:04 pm

Nonstop2h 41m

$91

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

jue. 11/27

7:00 am-7:40 am

Nonstop1h 40m

Chicago O'Hare Intl

jue. 11/27

1:55 pm-4:27 pm

Nonstop1h 32m

$101

LouisvilleOrlando

SDF - MCO

SDFMCO

Louisville Intl

lun. 1/12

5:45 pm-7:55 pm

Nonstop2h 10m

Orlando

mar. 1/13

8:50 am-11:10 am

Nonstop2h 20m

$109

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

sáb. 12/6

7:00 am-7:40 am

Nonstop1h 40m

Chicago O'Hare Intl

lun. 12/8

5:54 pm-8:28 pm

Nonstop1h 34m

$127

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

sáb. 12/6

7:38 am-8:22 am

Nonstop1h 44m

Chicago O'Hare Intl

dom. 12/7

9:50 am-12:30 pm

Nonstop1h 40m

$128

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

jue. 11/13

7:25 am-8:05 am

Nonstop1h 40m

Chicago O'Hare Intl

mié. 12/3

8:20 pm-10:56 pm

Nonstop1h 36m

$133

LouisvilleLas Vegas

SDF - LAS

SDFLAS

Louisville Intl

lun. 2/23

6:40 pm-10:30 pm

1 stop6h 50m

Las Vegas Harry Reid Intl

vie. 2/27

5:55 pm-12:30 am

Nonstop3h 35m

$153

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

sáb. 12/6

6:00 am-12:06 pm

1 stop7h 06m

Chicago O'Hare Intl

dom. 12/7

5:59 pm-11:59 pm

1 stop5h 00m

$161

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

sáb. 12/6

7:50 am-4:57 pm

2 stops10h 07m

Chicago O'Hare Intl

dom. 12/7

6:00 am-11:57 am

1 stop4h 57m

$162

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to United States?

In general, February is the cheapest month to fly from Louisville to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $238. If you aren’t able to travel during the month of February, then book flights to United States from Louisville during July instead. Flights to United States in July, while not as cheap as those in February, still average around $239.

What is the cheapest day to depart on your flight to United States?

According to our data, Thursday is the cheapest day to fly to United States from Louisville. The lowest ticket price found for a Thursday departure recently was $303. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $433. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $196. Try not to purchase tickets at noon because they tend to be around $518. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Louisville Intl to United States flight route?

Fly from Louisville Intl to Orlando for the best Louisville Intl - United States flight prices

What cabin class options are available on Louisville Intl to United States flights?

There are 4 cabin classes available to choose from on Louisville Intl to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Louisville to United States flights?

No. A direct flight is the cheapest option for a flight between Louisville to United States.

Cheap Louisville to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to United States

Best Price Found	$44
Fastest flight time	1h 30m
Direct flights	Every day
Airports in United States	1 airport

The best one-way flight to United States from Louisville in the past 72 hours is $44. The best round-trip flight deal from Louisville to United States found on momondo in the last 72 hours is $93.

The fastest flight from Louisville to United States takes 1h 30m

Direct flights go from Louisville to United States every day.

There is 1 airport near United States: Chicago O'Hare Intl (ORD)

Search flight deals

When did momondo last update prices for flights from Louisville Intl Airport to United States?
Prices for flights from Louisville Intl Airport to United States refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to United States?
The number of operators available for flights from Louisville Intl Airport to United States is 6 as of October 2025.
How old do you have to be to fly from Louisville Intl Airport to United States?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to United States.
What documentation or ID do you need to fly to United States?
The required travel and health documents for your United States trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United States. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Louisville to United States?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Louisville to United States is Embraer 175 (17.07% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (10.70%), Airbus A318/A319/A320/A321 (8.92%), and Boeing 737 MAX 8 (8.29%).

Best airlines flying from Louisville to United States

Compare and see reviews for airlines that fly from Louisville to United States with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $65	Free Cancellation	Rating 6.3 8,104 reviews	Search Spirit Airlines flights
Allegiant Air	PriceFrom $84	Free Cancellation	Rating 7.2 694 reviews	Search Allegiant Air flights
Southwest	PriceFrom $137	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.2 11,033 reviews	Search American Airlines flights
Breeze Airways	PriceFrom $162	Free Cancellation	Rating 8.1 219 reviews	Search Breeze Airways flights
Delta	PriceFrom $173	Free Cancellation	Rating 7.9 7,982 reviews	Search Delta flights
United Airlines	PriceFrom $204	Free Cancellation	Rating 7.4 8,995 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to United States?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to United States for you.

Can I find flights from Louisville to United States with flexible booking policies on momondo?

All flight searches from Louisville to United States on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to United States?

momondo helps you find the best flight between Louisville and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Louisville to United States right now. Can momondo alert me if prices change?

Price alerts on flights to United States from Louisville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Louisville to the United States from $46

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to the United States departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Louisville to the United States

Cheap round-trip flights

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Cheap last minute flights

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American Airlines flights from Louisville to United States

Our best American Airlines deals on Louisville to United States flight tickets

Delta flights from Louisville to United States

Our best Delta deals on Louisville to United States flight tickets

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Use the filters below to find and compare flights from Louisville to the United States that are best for you.

See travel insights to the United States from

How to get the cheapest flight ticket from Louisville to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to United States?

What is the cheapest day to depart on your flight to United States?

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $196. Try not to purchase tickets at noon because they tend to be around $518. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Louisville Intl to United States flight route?

Fly from Louisville Intl to Orlando for the best Louisville Intl - United States flight prices

What cabin class options are available on Louisville Intl to United States flights?

There are 4 cabin classes available to choose from on Louisville Intl to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Louisville to United States flights?

No. A direct flight is the cheapest option for a flight between Louisville to United States.

What is the cheapest airline that flies from Louisville Intl to United States?

Allegiant Air, United Airlines, and American Airlines are the most popular carriers operating from Louisville Intl to United States

What airlines fly to United States?

How many flights depart from Louisville to United States on average per day?

As of October 2025, 62 flights take off from Louisville and land in United States each day. The most common flight departure time for this route is 12:00PM, with 53% of daily flights taking off in the afternoon.

How many flights depart from Louisville to United States on average per week?

As of October 2025, there are 437 flights per week flying from Louisville to United States. The most common day of the week flights depart is Thu, with 22% of flights taking off on this day.

Cheap Louisville to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to United States

Best Price Found

Fastest flight time

Direct flights

Airports in United States

When did momondo last update prices for flights from Louisville Intl Airport to United States?

How many operators does momondo search for flights from Louisville Intl Airport to United States?

How old do you have to be to fly from Louisville Intl Airport to United States?

What documentation or ID do you need to fly to United States?

What is the most popular plane model from Louisville to United States?

Best airlines flying from Louisville to United States

Compare and see reviews for airlines that fly from Louisville to United States with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to United States?

Can I find flights from Louisville to United States with flexible booking policies on momondo?

How can momondo help me find flights from Louisville to United States?

I’m not ready to book a flight from Louisville to United States right now. Can momondo alert me if prices change?

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo