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 9 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

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

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

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

As of August 2025, there are 402 flights per week flying from Louisville to United States. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.

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

As of August 2025, 57 flights take off from Louisville and land in United States each day. The most common flight departure time for this route is 6:00AM, with 47% 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 7 as of August 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.

$39 Cheap Flights from Louisville to the United States in 2025

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Find the cheapest flights from Louisville to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:36 pm - 8:25 pmSDF-ORD

1h 49mnonstop

7:26 am - 10:02 amORD-SDF

1h 36mnonstop

$77United Airlines

Find Deal

Mon, Sep 8 - Wed, Sep 10

6:44 am - 7:30 amSDF-ORD

1h 46mnonstop

4:55 pm - 7:24 pmORD-SDF

1h 29mnonstop

$91American Airlines

Find Deal

Tue, Sep 2 - Thu, Sep 4

3:20 pm - 9:30 pmSDF-ORD

7h 10m1 stop

1:50 pm - 7:55 pmORD-SDF

5h 05m1 stop

$97Southwest

Find Deal

Tue, Sep 9 - Tue, Sep 16

10:14 am - 12:18 pmSDF-MCO

2h 04mnonstop

7:00 am - 9:19 amMCO-SDF

2h 19mnonstop

$97Spirit Airlines

Find Deal

Sat, Sep 13 - Wed, Sep 17

10:14 am - 12:18 pmSDF-MCO

2h 04mnonstop

7:00 am - 9:19 amMCO-SDF

2h 19mnonstop

$98Spirit Airlines

Find Deal

Thu, Sep 11 - Sat, Sep 13

5:50 am - 11:50 amSDF-ORD

7h 00m1 stop

1:30 pm - 10:25 pmORD-SDF

7h 55m1 stop

$102Southwest

Find Deal

Sat, Sep 6 - Sat, Sep 6

6:57 pm - 9:07 pmSDF-TPA

2h 10mnonstop

4:02 pm - 6:17 pmTPA-SDF

2h 15mnonstop

$158Breeze Airways

Find Deal

Sun, Aug 24 - Thu, Aug 28

8:20 am - 12:08 pmSDF-ORD

4h 48m1 stop

7:00 am - 12:02 pmORD-SDF

4h 02m1 stop

$177Delta

Find Deal

Tue, Dec 16 - Wed, Dec 31

7:50 am - 12:35 pmSDF-ORD

5h 45m1 stop

1:22 pm - 9:13 pmORD-SDF

6h 51m2 stops

$182Delta

Find Deal

Tue, Sep 23 - Wed, Sep 24

6:57 pm - 9:07 pmSDF-TPA

2h 10mnonstop

4:02 pm - 6:17 pmTPA-SDF

2h 15mnonstop

$208Breeze Airways

Find Deal

Thu, Aug 28 - Sun, Aug 31

American Airlines flights from Louisville to United States

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

American Airlines

Sep 2

SDF6:44 amLouisville Intl

1h 46m

ORD7:30 amChicago O'Hare Intl

Sep 4

ORD4:55 pmChicago O'Hare Intl

1h 29m

SDF7:24 pmLouisville Intl

$91

Find similar

American Airlines

Sep 6

SDF2:42 pmLouisville Intl

1h 40m

ORD3:22 pmChicago O'Hare Intl

Sep 7

ORD7:05 amChicago O'Hare Intl

1h 19m

SDF9:24 amLouisville Intl

$121

Find similar

American Airlines

Oct 30

SDF2:21 pmLouisville Intl

1h 39m

ORD3:00 pmChicago O'Hare Intl

Oct 31

ORD7:10 pmChicago O'Hare Intl

1h 35m

SDF9:45 pmLouisville Intl

$135

Find similar

Southwest flights from Louisville to United States

Our best Southwest deals on Louisville to United States flight tickets

Southwest

Sep 9

SDF3:20 pmLouisville Intl

7h 10m

1 stop

ORD9:30 pmChicago O'Hare Intl

Sep 16

ORD1:50 pmChicago O'Hare Intl

5h 05m

1 stop

SDF7:55 pmLouisville Intl

$97

Find similar

Southwest

Sep 6

SDF5:50 amLouisville Intl

7h 00m

1 stop

ORD11:50 amChicago O'Hare Intl

Sep 6

ORD1:30 pmChicago O'Hare Intl

7h 55m

1 stop

SDF10:25 pmLouisville Intl

$102

Find similar

Southwest

Oct 30

SDF1:20 pmLouisville Intl

4h 05m

1 stop

ORD4:25 pmChicago O'Hare Intl

Oct 31

ORD1:50 pmChicago O'Hare Intl

5h 15m

1 stop

SDF8:05 pmLouisville Intl

$134

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

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 9/8

7:36 pm-8:25 pm

Nonstop1h 49m

Chicago O'Hare Intl

Wed 9/10

7:26 am-10:02 am

Nonstop1h 36m

$77

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 9/2

6:44 am-7:30 am

Nonstop1h 46m

Chicago O'Hare Intl

Thu 9/4

4:55 pm-7:24 pm

Nonstop1h 29m

$91

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 9/9

3:20 pm-9:30 pm

1 stop7h 10m

Chicago O'Hare Intl

Tue 9/16

1:50 pm-7:55 pm

1 stop5h 05m

$97

LouisvilleOrlando

SDF - MCO

SDFMCO

Louisville Intl

Sat 9/13

10:14 am-12:18 pm

Nonstop2h 04m

Orlando

Wed 9/17

7:00 am-9:19 am

Nonstop2h 19m

$97

LouisvilleOrlando

SDF - MCO

SDFMCO

Louisville Intl

Thu 9/11

10:14 am-12:18 pm

Nonstop2h 04m

Orlando

Sat 9/13

7:00 am-9:19 am

Nonstop2h 19m

$98

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 9/6

5:50 am-11:50 am

1 stop7h 00m

Chicago O'Hare Intl

Sat 9/6

1:30 pm-10:25 pm

1 stop7h 55m

$102

LouisvilleTampa

SDF - TPA

SDFTPA

Louisville Intl

Sun 8/24

6:57 pm-9:07 pm

Nonstop2h 10m

Tampa

Thu 8/28

4:02 pm-6:17 pm

Nonstop2h 15m

$158

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 12/16

8:20 am-12:08 pm

1 stop4h 48m

Chicago O'Hare Intl

Wed 12/31

7:00 am-12:02 pm

1 stop4h 02m

$177

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 9/23

7:50 am-12:35 pm

1 stop5h 45m

Chicago O'Hare Intl

Wed 9/24

1:22 pm-9:13 pm

2 stops6h 51m

$182

LouisvilleTampa

SDF - TPA

SDFTPA

Louisville Intl

Thu 8/28

6:57 pm-9:07 pm

Nonstop2h 10m

Tampa

Sun 8/31

4:02 pm-6:17 pm

Nonstop2h 15m

$208

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 $294. 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 $424. 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 $445. 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 Los Angeles 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	$39
Fastest flight time	1h 31m
Direct flights	Every day
Airports in United States	4 airports

The best one-way flight to United States from Louisville in the past 72 hours is $39. The best round-trip flight deal from Louisville to United States found on momondo in the last 72 hours is $77.

The fastest flight from Louisville to United States takes 1h 31m

Direct flights go from Louisville to United States every day.

There are 4 airports near United States: Chicago O'Hare Intl (ORD), Tampa (TPA), Orlando (MCO), Las Vegas Harry Reid Intl (LAS)

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 7 as of August 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 (19.57% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (11.04%), Boeing 737-700 Passenger/BBJ1 (winglets) (9.69%), and Airbus A320-100/200 (8.57%).

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 8,048 reviews	Search Spirit Airlines flights
Allegiant Air	PriceFrom $79	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
Southwest	PriceFrom $138	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Breeze Airways	PriceFrom $159	Free Cancellation	Rating 8.0 192 reviews	Search Breeze Airways flights
Delta	PriceFrom $188	Free Cancellation	Rating 8.0 7,979 reviews	Search Delta flights
United Airlines	PriceFrom $203	Free Cancellation	Rating 7.4 8,920 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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Popular cities in the United States

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Cheap flights from Louisville to the United States from $39

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 9/30. 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

Trusted and free

Trusted and free

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Find the cheapest flights from Louisville to the United States

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Louisville to United States

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

Southwest flights from Louisville to United States

Our best Southwest deals on Louisville to United States flight tickets

momondo Fare Finder

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 $445. 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 Los Angeles 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?

United Airlines, American Airlines, and Spirit 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 August 2025, 57 flights take off from Louisville and land in United States each day. The most common flight departure time for this route is 6:00AM, with 47% of daily flights taking off in the afternoon.

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

As of August 2025, there are 402 flights per week flying from Louisville to United States. The most common day of the week flights depart is Mon, with 16% 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