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$163+ Cheap flights from Ontario to Louisville (ONT - SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SDF
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
1 adult, Economy
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The best prices from Ontario to Louisville Intl are usually found in September or December, booked 83 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from Ontario to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 25, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$326
(United Airlines)

One-way from

$163
(Delta)
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 49% potential price drop
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From Ontario to Louisville Intl
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One-way flight from Ontario to Louisville Intl
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What is the cheapest day to fly round-trip from Ontario to Louisville?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 27% on the overall cost on flights from Ontario to Louisville.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 50 days in advance, which can save you up to 118% on flights from Ontario to Louisville compared to booking the week you need them. Waiting 50 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $157. For sooner than that we have options available in the next 3 days from $272.

What is the cheapest month to fly from Ontario to Louisville?

August can be a great time to fly to Louisville from Ontario with a flight ticket averaging about $276. Cheapflights users have found deals in the month of August for as cheap as $88. The most expensive prices can be found in the month of March.

What is the cheapest time of day to fly from ONT to SDF?

Unlike in the evening, when flights are generally more expensive, you can save up to 81% on flights from Ontario to Louisville by exploring options for tickets in the afternoon.

Cheap Ontario to Louisville flights in July & August 2024

Find cheap flight options from Ontario to Louisville specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Louisville in 2024. Check back in a little while for more flight options.
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/211:32 pmONT - SDF
1 stop6h 06mUnited Airlines
Mon 8/263:35 pmSDF - ONT
1 stop8h 27mUnited Airlines
Deal found 7/24$346
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/216:00 amONT - SDF
2 stops9h 40mDelta
Mon 8/266:00 amSDF - ONT
1 stop7h 13mDelta
Deal found 7/24$351
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/215:00 pmONT - SDF
2 stops13h 46mDelta
Mon 8/2610:26 amSDF - ONT
2 stops13h 19mDelta
Deal found 7/24$376
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/301:32 pmONT - SDF
1 stop5h 53mUnited Airlines
Mon 9/29:20 amSDF - ONT
1 stop6h 12mUnited Airlines
Deal found 7/23$379
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/275:05 amONT - SDF
1 stop6h 27mUnited Airlines
Sat 9/79:20 amSDF - ONT
1 stop6h 12mUnited Airlines
Deal found 7/24$416
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/276:00 amONT - SDF
2 stops12h 52mAlaska Airlines
Sat 9/710:54 amSDF - ONT
2 stops14h 26mAlaska Airlines
Deal found 7/24$426
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/195:05 amONT - SDF
1 stop6h 27mUnited Airlines
Sat 8/249:20 amSDF - ONT
1 stop6h 10mUnited Airlines
Deal found 7/24$436
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/131:35 pmONT - SDF
1 stop5h 53mUnited Airlines
Sun 8/183:35 pmSDF - ONT
1 stop8h 13mUnited Airlines
Deal found 7/23$486
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/296:40 amONT - SDF
2 stops9h 44mAmerican Airlines
Tue 9/38:00 amSDF - ONT
2 stops11h 08mAmerican Airlines
Deal found 7/24$492

Ontario to Louisville 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Louisville in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Louisville in 2024. Check back in a little while for more flight options.
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/11:35 pmONT - SDF
1 stop5h 50mUnited Airlines
Fri 9/63:40 pmSDF - ONT
1 stop8h 51mUnited Airlines
Deal found 7/24$326
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/18:25 amONT - SDF
2 stops10h 55mAmerican Airlines
Fri 9/67:53 amSDF - ONT
1 stop8h 55mAmerican Airlines
Deal found 7/24$331
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/211:32 pmONT - SDF
1 stop6h 06mUnited Airlines
Mon 8/263:35 pmSDF - ONT
1 stop8h 27mUnited Airlines
Deal found 7/24$346
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/216:00 amONT - SDF
2 stops9h 40mDelta
Mon 8/266:00 amSDF - ONT
1 stop7h 13mDelta
Deal found 7/24$351
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/812:51 pmONT - SDF
1 stop7h 52mAmerican Airlines
Tue 11/124:02 pmSDF - ONT
1 stop7h 11mAmerican Airlines
Deal found 7/25$356
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/811:59 pmONT - SDF
1 stop7h 16mAmerican Airlines
Tue 11/128:35 amSDF - ONT
2 stops10h 11mAmerican Airlines
Deal found 7/25$361
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1610:00 pmONT - SDF
1 stop9h 02mDelta
Sat 10/196:00 amSDF - ONT
1 stop7h 37mDelta
Deal found 7/25$362
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2910:51 amONT - SDF
1 stop8h 06mAmerican Airlines
Wed 10/210:27 amSDF - ONT
1 stop9h 22mAmerican Airlines
Deal found 7/24$366
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1710:00 pmONT - SDF
1 stop9h 02mDelta
Tue 10/222:15 pmSDF - ONT
2 stops11h 39mDelta
Deal found 7/24$371

Ontario to Louisville flights leaving soon

Find last-minute flight options from Ontario to Louisville for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Book one of these great deals on flights from Ontario to Louisville. Users should be sure to double check the price, date, and time of their last-minute flight.
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/312:47 pmONT - SDF
1 stop6h 12mAmerican Airlines
Thu 8/88:27 pmSDF - ONT
1 stop6h 31mAmerican Airlines
Deal found 7/24$685
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/26:50 amONT - SDF
1 stop9h 22mDelta
Sat 8/36:00 amSDF - ONT
1 stop7h 13mDelta
Deal found 7/24$755
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/301:35 pmONT - SDF
1 stop5h 53mUnited Airlines
Tue 8/69:15 amSDF - ONT
1 stop6h 18mUnited Airlines
Deal found 7/24$774
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/306:00 amONT - SDF
2 stops12h 04mAlaska Airlines
Sat 8/36:00 amSDF - ONT
2 stops12h 22mAlaska Airlines
Deal found 7/24$794
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/301:35 pmONT - SDF
1 stop5h 53mUnited Airlines
Fri 8/23:35 pmSDF - ONT
1 stop8h 13mUnited Airlines
Deal found 7/24$800
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/11:30 pmONT - SDF
1 stop5h 58mUnited Airlines
Sun 8/49:15 amSDF - ONT
1 stop6h 18mUnited Airlines
Deal found 7/24$826
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/301:35 pmONT - SDF
1 stop5h 53mUnited Airlines
Fri 8/23:35 pmSDF - ONT
1 stop8h 13mUnited Airlines
Deal found 7/25$896
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/306:00 amONT - SDF
2 stops12h 04mAlaska Airlines
Wed 7/3110:46 amSDF - ONT
2 stops11h 29mAlaska Airlines
Deal found 7/24$1,010
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/314:24 pmONT - SDF
2 stops15h 23mAlaska Airlines
Sat 8/310:46 amSDF - ONT
2 stops16h 13mAlaska Airlines
Deal found 7/24$1,020

One-way flights to Louisville from Ontario

Search for one-way flight options from Ontario to Louisville. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Take a look at some of the one-way flights we've detected from Ontario to Louisville. Users in need of a round-trip flight from Ontario to Louisville instead should update the search form at the top of page.
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/97:00 amONT - SDF
1 stop9h 19mDelta
Deal found 7/23$163
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2211:23 amONT - SDF
1 stop6h 19mDelta
Deal found 7/25$183
This Trip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/98:02 amONT - SDF
1 stop8h 52mMultiple Airlines
Deal found 7/24$186
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2210:00 pmONT - SDF
2 stops8h 46mDelta
Deal found 7/25$188
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/315:15 amONT - SDF
1 stop6h 09mUnited Airlines
Deal found 7/24$208
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/316:00 amONT - SDF
2 stops13h 39mAlaska Airlines
Deal found 7/24$213
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/151:30 pmONT - SDF
1 stop5h 58mUnited Airlines
Deal found 7/24$228
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1010:00 pmONT - SDF
1 stop9h 02mDelta
Deal found 7/23$229
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/186:50 amONT - SDF
1 stop7h 30mDelta
Deal found 7/24$233

Find flights from Ontario to Louisville within your budget

Customize your flight search to find flights from Ontario to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$326 - $426

Route

Depart

Return

Price

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Sun 9/1

1 stop5h 50m

Louisville Intl

Fri 9/6

1 stop8h 51m

$326

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Sun 9/1

2 stops10h 55m

Louisville Intl

Fri 9/6

1 stop8h 55m

$331

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Wed 8/21

1 stop6h 06m

Louisville Intl

Mon 8/26

1 stop8h 27m

$346

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Wed 8/21

2 stops9h 40m

Louisville Intl

Mon 8/26

1 stop7h 13m

$351

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Fri 11/8

1 stop7h 52m

Louisville Intl

Tue 11/12

1 stop7h 11m

$356

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Fri 11/8

1 stop7h 16m

Louisville Intl

Tue 11/12

2 stops10h 11m

$361

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Wed 10/16

1 stop9h 02m

Louisville Intl

Sat 10/19

1 stop7h 37m

$362

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Thu 10/17

1 stop9h 02m

Louisville Intl

Tue 10/22

2 stops11h 39m

$371

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Tue 8/27

2 stops12h 52m

Louisville Intl

Sat 9/7

2 stops14h 26m

$426

Flights are sorted by cheapest first

Deals found on 7/24

How far ahead should I book a flight from Ontario to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Louisville. Price data was last updated on July 23, 2024.
Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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What is the cheapest day to fly from Ontario to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Louisville. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Louisville flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from Ontario to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average temperature and rainfall totals by month.

SDF

Temperature

35.6 - 78.8 °F

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated July 25, 2024.
Read reviews from past customers who have flown Delta, Alaska Airlines and United Airlines from Ontario to Louisville. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Food

7.2

Comfort

7.9

Overall

8.1

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,365 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Food

7.2

Comfort

7.9

Overall

8.1

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
9,630 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Food

7.2

Comfort

7.9

Overall

8.1

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Food

7.2

Comfort

7.9

Overall

8.1

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Food

7.2

Comfort

7.9

Overall

8.1

Entertainment

7.2

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Ontario to Louisville for under $400 on Cheapflights?

    Yes, there are multiple flights from Ontario to Louisville for under $400. The cheapest flight booked recently is on United Airlines for just $326, but on average you can expect to pay $379.

  • Are there last-minute flights available from Ontario to Louisville for under $700?

    There are currently 19+ open flights from Ontario to Louisville within the next 7 days for less than $700.

  • What are the cheapest airlines flying from Ontario to Louisville round-trip?

    Flying on United Airlines is currently your cheapest option to Louisville, with prices starting at $326. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $331 and $351, respectively. United Airlines is currently priced 31% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ontario to Louisville one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $163. United Airlines flights start at $208 while deals on Alaska Airlines start at $213 one-way.

  • What does ONT to SDF mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ontario Airport to Louisville Intl Airport flight would often be abbreviated as a ONT to SDF flight.

  • Can I find deals for flights from Ontario to Louisville that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Louisville flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Louisville with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Louisville flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Louisville that include hotel bookings?

    Yes. In addition to deals on Ontario to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Louisville.

  • Can I find deals for business class flights from Ontario to Louisville?

    Yes. Cheapflights offers flight deals from Ontario to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Louisville that allow pets onboard?

    Many airlines flying from Ontario to Louisville offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Louisville?

    Yes, you can often find last-minute deals on Ontario to Louisville flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Louisville flight deals updated?

    The Ontario to Louisville flight deals you see on this page were last updated on 7/25.

  • What are the most popular airlines that fly from Ontario to Louisville?

    American Airlines, Delta and Spirit Airlines are the most popular airlines when flying from Ontario to Louisville.

  • What is the cheapest month to book a flight from Ontario to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Louisville (average of $287). Flying from Ontario to Louisville in April is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 4 airlines flying from Ontario to Louisville

Discover the top 4 airlines that operate flights from Ontario to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$97Average$112FlexibilityNo cancel feeOn-time65%
DeltaCheapest$321Average$493FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$350Average$484FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$358Average$501FlexibilityNo cancel feeOn-time71%
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Search flights from Ontario to Louisville by cabin class

Find flights from Ontario to Louisville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Weekly flight availability from Ontario to Louisville

Explore weekly flight availability from Ontario to Louisville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 25, 2024.
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