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Cheap flights from Ontario to Louisville (ONT - SDF) from $204

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 9/10. 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.
ONT — SDF
May 6 — May 131
From?
To?
Mon 5/6
Mon 5/13
1 adult, Economy
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The best prices from Ontario to Louisville Intl are usually found in September or January, booked 29 days in advance, depart on a Saturday or Wednesday 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 May 1, 2024.

Popular in

August

Cheapest in

September

Average price

$454

Round-trip from

$287
High demand for flights, 34% potential price rise
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Best time to find cheap flights, 68% potential price drop
Search Deals
Average for round-trip flights in May 2024
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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 Friday 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 35% 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 17 days in advance, which can save you up to 131% on flights from Ontario to Louisville compared to booking the week you need them. Waiting 17 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 $138. For sooner than that we have options available in the next 3 days from $268.

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 $232. Cheapflights users have found deals in the month of August for as cheap as $87. The most expensive prices can be found in the month of December.

When is the cheapest time to fly from Ontario to Louisville (ONT - SDF)?

Unlike at noon, when flights are generally more expensive, you can save up to 83% on flights from Ontario to Louisville by exploring options for tickets in the afternoon.

Cheap American Airlines flights from Ontario to Louisville

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and Louisville. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Check out some of the cheapest American Airlines flights we've come across from Ontario to Louisville. Make sure to check back often as deals are often changing.
Tue 7/1610:48 amONT - SDF
1 stop6h 05mAmerican Airlines
Tue 7/234:46 pmSDF - ONT
1 stop9h 14mAmerican Airlines
Deal found 5/1$406
Tue 7/169:19 amONT - SDF
2 stops10h 16mAmerican Airlines
Tue 7/234:46 pmSDF - ONT
1 stop9h 14mAmerican Airlines
Deal found 5/1$435
Sat 10/510:50 amONT - SDF
1 stop5h 51mAmerican Airlines
Mon 10/76:02 pmSDF - ONT
1 stop6h 58mAmerican Airlines
Deal found 5/1$446
Sat 10/56:15 amONT - SDF
2 stops9h 24mAmerican Airlines
Mon 10/76:02 pmSDF - ONT
1 stop6h 58mAmerican Airlines
Deal found 5/1$451
Wed 7/176:15 amONT - SDF
2 stops10h 38mAmerican Airlines
Tue 7/234:46 pmSDF - ONT
1 stop9h 14mAmerican Airlines
Deal found 5/1$456
Fri 7/1910:36 pmONT - SDF
1 stop9h 17mAmerican Airlines
Tue 7/234:46 pmSDF - ONT
1 stop9h 14mAmerican Airlines
Deal found 5/1$459
Thu 7/1112:43 pmONT - SDF
1 stop6h 52mAmerican Airlines
Tue 7/234:46 pmSDF - ONT
1 stop9h 14mAmerican Airlines
Deal found 5/1$460
Tue 7/1610:48 amONT - SDF
1 stop6h 05mAmerican Airlines
Sat 7/206:00 amSDF - ONT
1 stop6h 56mAmerican Airlines
Deal found 5/1$462
Tue 7/162:47 pmONT - SDF
1 stop6h 12mAmerican Airlines
Sat 7/2010:46 amSDF - ONT
2 stops10h 36mAmerican Airlines
Deal found 5/1$467

Cheap United Airlines flights from Ontario to Louisville

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Louisville. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from Ontario to Louisville. Check back soon if you're not seeing flights that suit your needs.
Wed 6/125:15 amONT - SDF
1 stop6h 17mUnited Airlines
Wed 7/173:35 pmSDF - ONT
1 stop8h 13mUnited Airlines
Deal found 5/1$408
Tue 7/231:35 pmONT - SDF
1 stop5h 53mUnited Airlines
Wed 7/249:15 amSDF - ONT
1 stop6h 18mUnited Airlines
Deal found 4/30$498
Sat 5/181:36 pmONT - SDF
1 stop6h 41mUnited Airlines
Tue 5/213:30 pmSDF - ONT
1 stop8h 23mUnited Airlines
Deal found 5/1$550
Wed 7/315:20 amONT - SDF
1 stop14h 08mUnited Airlines
Fri 8/29:15 amSDF - ONT
1 stop6h 18mUnited Airlines
Deal found 5/1$569
Sun 6/26:25 pmONT - SDF
1 stop24h 53mUnited Airlines
Wed 6/53:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/1$570
Fri 5/311:29 pmONT - SDF
1 stop5h 49mUnited Airlines
Fri 6/73:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/1$572
Fri 6/286:25 pmONT - SDF
1 stop25h 03mUnited Airlines
Mon 7/13:35 pmSDF - ONT
1 stop28h 53mUnited Airlines
Deal found 5/1$594
Sat 6/85:15 amONT - SDF
1 stop6h 11mUnited Airlines
Sat 6/153:45 pmSDF - ONT
1 stop8h 18mUnited Airlines
Deal found 4/30$606
Sat 5/251:29 pmONT - SDF
1 stop5h 49mUnited Airlines
Mon 5/279:21 amSDF - ONT
1 stop14h 27mUnited Airlines
Deal found 5/1$648

Cheap Ontario to Louisville flights in May & June 2024

Find cheap flight options from Ontario to Louisville specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Prices were last updated on May 1, 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.
Fri 5/1712:50 pmONT - SDF
1 stop6h 32mAmerican Airlines
Wed 5/2211:29 amSDF - ONT
1 stop10h 30mAmerican Airlines
Deal found 5/1$413
Fri 5/172:50 pmONT - SDF
1 stop6h 07mAmerican Airlines
Wed 5/226:01 amSDF - ONT
2 stops8h 46mAmerican Airlines
Deal found 5/1$420
Fri 5/1711:59 pmONT - SDF
1 stop7h 19mAmerican Airlines
Tue 5/212:34 pmSDF - ONT
1 stop6h 48mAmerican Airlines
Deal found 5/1$422
Fri 5/1712:50 pmONT - SDF
1 stop6h 32mAmerican Airlines
Tue 5/213:43 pmSDF - ONT
2 stops9h 46mAmerican Airlines
Deal found 5/1$425
Sat 5/2512:50 pmONT - SDF
1 stop8h 09mDelta
Tue 5/283:07 pmSDF - ONT
1 stop7h 59mDelta
Deal found 5/1$428
Fri 5/1712:53 pmONT - SDF
2 stops8h 04mAmerican Airlines
Wed 5/226:01 amSDF - ONT
2 stops8h 46mAmerican Airlines
Deal found 5/1$463
Fri 5/1712:53 pmONT - SDF
2 stops8h 04mAmerican Airlines
Tue 5/213:43 pmSDF - ONT
2 stops9h 46mAmerican Airlines
Deal found 5/1$468
Mon 5/2010:00 pmONT - SDF
1 stop8h 42mDelta
Thu 5/233:07 pmSDF - ONT
1 stop7h 59mDelta
Deal found 5/1$480
Thu 5/306:00 amONT - SDF
1 stop7h 49mDelta
Thu 6/65:52 pmSDF - ONT
1 stop7h 55mDelta
Deal found 4/30$482

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 2,899,487 searches. Data last updated May 1, 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.
Tue 7/1610:48 amONT - SDF
1 stop6h 05mAmerican Airlines
Tue 7/234:46 pmSDF - ONT
1 stop9h 14mAmerican Airlines
Deal found 5/1$406
Wed 6/125:15 amONT - SDF
1 stop6h 17mUnited Airlines
Wed 7/173:35 pmSDF - ONT
1 stop8h 13mUnited Airlines
Deal found 5/1$408
Fri 5/1712:50 pmONT - SDF
1 stop6h 32mAmerican Airlines
Wed 5/2211:29 amSDF - ONT
1 stop10h 30mAmerican Airlines
Deal found 5/1$413
Fri 5/172:50 pmONT - SDF
1 stop6h 07mAmerican Airlines
Wed 5/226:01 amSDF - ONT
2 stops8h 46mAmerican Airlines
Deal found 5/1$420
Fri 5/1711:59 pmONT - SDF
1 stop7h 19mAmerican Airlines
Tue 5/212:34 pmSDF - ONT
1 stop6h 48mAmerican Airlines
Deal found 5/1$422
Fri 5/1712:50 pmONT - SDF
1 stop6h 32mAmerican Airlines
Tue 5/213:43 pmSDF - ONT
2 stops9h 46mAmerican Airlines
Deal found 5/1$425
Sat 5/2512:50 pmONT - SDF
1 stop8h 09mDelta
Tue 5/283:07 pmSDF - ONT
1 stop7h 59mDelta
Deal found 5/1$428
Tue 7/169:19 amONT - SDF
2 stops10h 16mAmerican Airlines
Tue 7/234:46 pmSDF - ONT
1 stop9h 14mAmerican Airlines
Deal found 5/1$435
Wed 6/1210:00 pmONT - SDF
1 stop9h 03mDelta
Wed 7/1712:59 pmSDF - ONT
2 stops13h 44mDelta
Deal found 5/1$437

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 2,899,487 searches. Data last updated May 1, 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.
Sat 5/1110:29 pmONT - SDF
1 stop9h 30mAmerican Airlines
Wed 5/1511:29 amSDF - ONT
1 stop10h 30mAmerican Airlines
Deal found 5/1$517
Sat 5/1110:29 pmONT - SDF
1 stop9h 30mAmerican Airlines
Thu 5/164:37 pmSDF - ONT
1 stop6h 31mAmerican Airlines
Deal found 5/1$518
Sat 5/119:30 amONT - SDF
2 stops9h 52mAmerican Airlines
Wed 5/1511:29 amSDF - ONT
1 stop10h 30mAmerican Airlines
Deal found 5/1$523
Sat 5/116:42 pmONT - SDF
2 stops12h 09mDelta
Thu 5/166:00 amSDF - ONT
1 stop8h 40mDelta
Deal found 5/1$525
Sat 5/116:00 amONT - SDF
2 stops13h 55mDelta
Thu 5/162:26 pmSDF - ONT
2 stops11h 21mDelta
Deal found 5/1$530
Wed 5/812:50 pmONT - SDF
1 stop8h 09mDelta
Mon 5/133:07 pmSDF - ONT
1 stop7h 59mDelta
Deal found 5/1$618
Sat 5/116:00 amONT - SDF
2 stops26h 44mUnited Airlines
Wed 5/153:30 pmSDF - ONT
1 stop8h 23mUnited Airlines
Deal found 4/30$653
Sat 5/116:00 amONT - SDF
1 stop8h 16mDelta
Wed 5/153:07 pmSDF - ONT
1 stop7h 59mDelta
Deal found 4/30$674
Sat 5/115:45 amONT - SDF
2 stops8h 31mDelta
Wed 5/156:00 amSDF - ONT
2 stops9h 13mDelta
Deal found 4/30$684

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 2,899,487 searches. Data last updated May 1, 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.
Tue 9/1010:59 pmONT - SDF
1 stop7h 32mDelta
Deal found 5/1$204
Thu 9/512:45 pmONT - SDF
1 stop8h 14mDelta
Deal found 5/1$224
Tue 6/115:15 amONT - SDF
1 stop6h 17mUnited Airlines
Deal found 5/1$249
Wed 5/151:36 pmONT - SDF
1 stop6h 41mUnited Airlines
Deal found 5/1$256
Fri 6/1410:00 pmONT - SDF
1 stop9h 03mDelta
Deal found 5/1$258
Sat 6/295:00 pmONT - SDF
2 stops13h 46mDelta
Deal found 5/1$263
Mon 9/91:35 pmONT - SDF
1 stop5h 50mUnited Airlines
Deal found 5/1$269
Sat 6/225:15 amONT - SDF
1 stop14h 03mUnited Airlines
Deal found 5/1$293
Sun 6/305:20 amONT - SDF
1 stop6h 10mUnited Airlines
Deal found 5/1$303

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 2,899,487 searches. Data last updated May 1, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$406 - $616

Route

Depart

Return

Price

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Tue 7/16

1 stop6h 05m

Louisville Intl

Tue 7/23

1 stop9h 14m

$406

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Wed 6/12

1 stop6h 17m

Louisville Intl

Wed 7/17

1 stop8h 13m

$408

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Sat 5/25

1 stop8h 09m

Louisville Intl

Tue 5/28

1 stop7h 59m

$428

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Tue 7/16

2 stops10h 16m

Louisville Intl

Tue 7/23

1 stop9h 14m

$435

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Wed 6/12

1 stop9h 03m

Louisville Intl

Wed 7/17

2 stops13h 44m

$437

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Wed 6/12

2 stops13h 46m

Louisville Intl

Wed 7/17

2 stops11h 44m

$442

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Sat 10/5

1 stop5h 51m

Louisville Intl

Mon 10/7

1 stop6h 58m

$446

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Tue 7/23

1 stop5h 53m

Louisville Intl

Wed 7/24

1 stop6h 18m

$498

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Fri 5/31

2 stops13h 58m

Louisville Intl

Tue 6/4

2 stops12h 24m

$616

Flights are sorted by cheapest first

Deals found on 5/1

When is the best time to 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 January 28, 2024.
Booking 18 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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When is the cheapest time 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 April 28, 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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Average price of flights to Louisville by month

Plan your trip from Ontario to Louisville by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to Louisville is currently $258 while a round-trip flight costs $457. Price data was last updated on April 28, 2024.

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 $372). 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.

January

$287

February

$332

March

$359

April

$372

May

$353

June

$356

July

$344

August

$304

September

$302

October

$328

November

$337

December

$316

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

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 May 1, 2024.
Read reviews from past customers who have flown American Airlines, United Airlines and Delta 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
9,115 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.3

Comfort

7.9

Overall

8.1

Reviews

1 / 10

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

Alaska Airlines
8.1
Very good
9,115 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.3

Comfort

7.9

Overall

8.1

Reviews

1 / 10

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

Delta
8.1
Very good
10,874 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.3

Comfort

7.9

Overall

8.1

Reviews

1 / 10

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

United Airlines
7.4
Good
11,159 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.3

Comfort

7.9

Overall

8.1

Reviews

1 / 10

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

American Airlines
7.3
Good
14,788 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.3

Comfort

7.9

Overall

8.1

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 $500 on Cheapflights?

    Yes, there are multiple flights from Ontario to Louisville for under $500. The cheapest flight booked recently is on American Airlines for just $406, but on average you can expect to pay $459.

  • Are there last-minute flights available from Ontario to Louisville for under $600?

    There are currently 20+ open flights from Ontario to Louisville within the next 7 days for less than $600.

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

    Flying on American Airlines is currently your cheapest option to Louisville, with prices starting at $406. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $408 and $428, respectively. American Airlines is currently priced 15% 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 $204. United Airlines flights start at $249 while deals on Alaska Airlines start at $308 one-way.

  • 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 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 5/1.

See more FAQs

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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 2,899,487 searches. Data last updated May 1, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$97Average$148FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$319Average$486FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$367Average$504FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$368Average$491FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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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.
First Class
Business Class
Prem Econ Class
Economy Class

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 May 1, 2024.
Sunday0daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights

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How does Cheapflights help users find flights from Ontario to Louisville?

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Why should you use Cheapflights to find cheap flight tickets from Ontario to Louisville?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Louisville for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Louisville with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Louisville, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to Louisville become cheaper?

Yes! Start tracking prices for Ontario to Louisville flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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