HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Louisville (SDF) to Ontario from $129

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 6/6. 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.
SDF — YYZ
May 12 — May 191
From?
To?
Sun 5/12
Sun 5/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

February is one of the best times of the year to fly to Region of Ontario from Louisville. Prices for February average $433 per person but you can even find prices for as low as $318. The most expensive prices can be found in the month of June. Opting for a February flight can save you 33% on your journey compared to booking in June

When is the cheapest time to fly from Louisville to Region of Ontario (SDF - ON)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Region of Ontario as you normally would.

Cheap American Airlines flights from Louisville to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between Louisville and Ontario. 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 2,689,106 searches. Data last updated May 7, 2024.
Peruse some of the lowest-priced American Airlines flights we've found from Louisville to Ontario. Deals update often to give you more flight options matching your criteria
Mon 6/36:46 amSDF - YYZ
1 stop4h 29mAmerican Airlines
Sun 6/167:30 amYYZ - SDF
1 stop7h 55mAmerican Airlines
Deal found 5/6$355
Sun 6/96:20 amSDF - YYZ
1 stop8h 39mAmerican Airlines
Mon 6/103:45 pmYYZ - SDF
1 stop8h 07mAmerican Airlines
Deal found 5/6$426
Mon 6/248:22 amSDF - YYZ
2 stops10h 09mAmerican Airlines
Fri 6/286:54 amYYZ - SDF
2 stops10h 51mAmerican Airlines
Deal found 5/6$693

Cheap WestJet flights from Louisville to Ontario

Explore cheap flight options specifically provided by WestJet for the route between Louisville and Ontario. 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 2,689,106 searches. Data last updated May 7, 2024.
To aid your search, here are some of the cheapest WestJet flights we've found from Louisville to Ontario. Deals are refreshing constantly so come back soon for more options.
Mon 6/34:10 pmSDF - YYZ
2 stops13h 40mWestJet
Sun 6/167:46 amYYZ - SDF
1 stop6h 40mWestJet
Deal found 5/6$370
Thu 5/236:00 amSDF - YYZ
1 stop6h 10mWestJet
Mon 5/276:17 amYYZ - SDF
1 stop7h 55mWestJet
Deal found 5/6$483
Thu 5/236:00 amSDF - YYZ
1 stop6h 10mWestJet
Mon 5/277:00 pmYYZ - SDF
2 stops16h 42mWestJet
Deal found 5/6$493
Tue 6/44:10 pmSDF - YYZ
1 stop7h 04mWestJet
Tue 6/1810:15 pmYYZ - SDF
2 stops14h 45mWestJet
Deal found 5/6$527
Mon 5/135:44 pmSDF - YYZ
1 stop6h 13mWestJet
Thu 5/166:34 amYYZ - SDF
1 stop9h 10mWestJet
Deal found 5/6$619
Sat 5/116:21 pmSDF - YYZ
1 stop5h 36mWestJet
Sun 5/121:25 pmYYZ - SDF
1 stop5h 48mWestJet
Deal found 5/6$626
Mon 6/243:31 pmSDF - YYZ
1 stop8h 28mWestJet
Fri 6/2810:15 pmYYZ - SDF
2 stops14h 45mWestJet
Deal found 5/6$635
Sat 5/116:00 amSDF - YYZ
2 stops15h 06mWestJet
Sun 5/126:17 amYYZ - SDF
1 stop5h 25mWestJet
Deal found 5/6$667
Sun 7/217:12 amSDF - YOW
2 stops13h 30mWestJet
Sat 7/279:35 pmYOW - SDF
2 stops23h 22mWestJet
Deal found 5/7$750

Cheap Louisville to Ontario flights in May & June 2024

Find cheap flight options from Louisville to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,689,106 searches. Prices were last updated on May 7, 2024.
Scroll through some of the best deals on flights from Louisville to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 5/307:43 amSDF - YYZ
2 stops11h 52mMultiple Airlines
Wed 6/56:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$243
Wed 6/56:39 pmSDF - YYZ
3 stops24h 56mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$246
Thu 5/307:43 amSDF - YYZ
1 stop15h 43mMultiple Airlines
Wed 6/56:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$255
Tue 6/47:43 amSDF - YYZ
1 stop6h 45mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$260
Wed 6/56:39 pmSDF - YYZ
3 stops24h 56mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$261
Wed 6/55:45 amSDF - YYZ
2 stops15h 17mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$267
Tue 6/47:43 amSDF - YYZ
3 stops30h 17mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$270
Thu 5/307:43 amSDF - YYZ
2 stops11h 52mMultiple Airlines
Wed 6/56:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$274
Tue 6/47:43 amSDF - YYZ
1 stop6h 45mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$275

Louisville to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Louisville and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,689,106 searches. Data last updated May 7, 2024.
Scroll through some of the best deals on flights from Louisville to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 5/307:43 amSDF - YYZ
2 stops11h 52mMultiple Airlines
Wed 6/56:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$243
Wed 6/56:39 pmSDF - YYZ
3 stops24h 56mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$246
Thu 5/307:43 amSDF - YYZ
1 stop15h 43mMultiple Airlines
Wed 6/56:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$255
Tue 6/47:43 amSDF - YYZ
1 stop6h 45mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$260
Wed 6/56:39 pmSDF - YYZ
3 stops24h 56mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$261
Wed 6/55:45 amSDF - YYZ
2 stops15h 17mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
1 stop11h 24mMultiple Airlines
Deal found 5/6$267
Tue 6/47:43 amSDF - YYZ
3 stops30h 17mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$270
Thu 5/307:43 amSDF - YYZ
2 stops11h 52mMultiple Airlines
Wed 6/56:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$274
Tue 6/47:43 amSDF - YYZ
1 stop6h 45mMultiple Airlines
Wed 6/126:30 amYYZ - SDF
2 stops18h 16mMultiple Airlines
Deal found 5/6$275

Louisville to Ontario flights leaving soon

Find last-minute flight options from Louisville to Ontario 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 2,689,106 searches. Data last updated May 7, 2024.
Have a look at some of the last-minute flights available departing from Louisville to Ontario. Users should examine the flight details to ensure there are no surprises.
Sat 5/117:43 amSDF - YYZ
2 stops11h 12mMultiple Airlines
Sun 5/123:40 pmYYZ - SDF
2 stops17h 49mMultiple Airlines
Deal found 5/6$469
Mon 5/135:44 pmSDF - YYZ
1 stop6h 13mWestJet
Thu 5/166:34 amYYZ - SDF
1 stop9h 10mWestJet
Deal found 5/6$619
Sat 5/116:21 pmSDF - YYZ
1 stop5h 36mWestJet
Sun 5/121:25 pmYYZ - SDF
1 stop5h 48mWestJet
Deal found 5/6$626
Sat 5/116:00 amSDF - YYZ
2 stops15h 06mWestJet
Sun 5/126:17 amYYZ - SDF
1 stop5h 25mWestJet
Deal found 5/6$667

One-way flights to Ontario from Louisville

Search for one-way flight options from Louisville to Ontario. 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 2,689,106 searches. Data last updated May 7, 2024.
If you're seeking multiple options on one-way flights from Louisville to Ontario, be sure to check out these deals, which are updated often. Those needing a return flight from Louisville to Ontario can use the search form above.
Thu 6/612:37 pmSDF - YYZ
1 stop9h 20mDelta
Deal found 5/6$129
Mon 5/1312:55 pmSDF - YYZ
1 stop22h 50mSun Country Air
Deal found 5/6$148
Thu 6/67:45 amSDF - YYZ
2 stops11h 50mMultiple Airlines
Deal found 5/6$159
Fri 6/78:35 pmSDF - YYZ
3 stops25h 25mMultiple Airlines
Deal found 5/6$171
Sun 5/268:50 amSDF - YYZ
1 stop3h 44mAmerican Airlines
Deal found 5/6$172
Fri 6/77:45 amSDF - YYZ
2 stops13h 12mMultiple Airlines
Deal found 5/6$182
Sun 5/267:43 amSDF - YYZ
2 stops11h 52mMultiple Airlines
Deal found 5/6$202
Thu 6/67:45 amSDF - YYZ
3 stops30h 15mMultiple Airlines
Deal found 5/6$210
Sun 5/267:43 amSDF - YYZ
3 stops30h 17mMultiple Airlines
Deal found 5/6$271

Find flights from Louisville to Ontario within your budget

Customize your flight search to find flights from Louisville to Ontario 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 2,689,106 searches. Data last updated May 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$243 - $375

Route

Depart

Return

Price

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Thu 5/30

2 stops11h 52m

Toronto Pearson Intl

Wed 6/5

1 stop11h 24m

$243

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Wed 6/5

3 stops24h 56m

Toronto Pearson Intl

Wed 6/12

1 stop11h 24m

$246

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Thu 5/30

1 stop15h 43m

Toronto Pearson Intl

Wed 6/5

1 stop11h 24m

$255

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 6/4

1 stop6h 45m

Toronto Pearson Intl

Wed 6/12

1 stop11h 24m

$260

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 6/4

1 stop6h 17m

Toronto Pearson Intl

Tue 6/18

1 stop5h 14m

$313

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 5/27

1 stop12h 52m

Toronto Pearson Intl

Tue 6/4

1 stop5h 14m

$315

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 6/3

1 stop4h 29m

Toronto Pearson Intl

Sun 6/16

1 stop7h 55m

$355

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 6/3

2 stops13h 40m

Toronto Pearson Intl

Sun 6/16

1 stop6h 40m

$370

Louisville IntlToronto Pearson Intl

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 8/20

1 stop4h 27m

Toronto Pearson Intl

Wed 8/21

1 stop9h 28m

$375

Flights are sorted by cheapest first

Deals found on 5/6

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated May 7, 2024.
To help decide which airline to fly from Louisville to Ontario, see what other customers have to say about American Airlines, WestJet and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,818 reviews
Check prices

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,818 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

WestJet
7.6
Good
2,948 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
11,090 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,697 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Sun Country Air
7.3
Good
642 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

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

  • What airport do you fly from for flights from Louisville to Ontario?

    If you book a flight to Ontario from Louisville, you will be flying from Louisville Intl, which is the city’s only airport. Louisville Intl (SDF) is located 5.3 mi from the center of Louisville.

  • Can I find flights from Louisville to Region of Ontario for under $300 on Cheapflights?

    Yes, there are multiple flights from Louisville to Region of Ontario for under $300. The cheapest flight booked recently is on Multiple Airlines for just $243, but on average you can expect to pay $289.

  • Are there last-minute flights available from Louisville to Region of Ontario for under $500?

    There are currently 4+ open flights from Louisville to Region of Ontario within the next 7 days for less than $500.

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

    One-way options have recently been found by users for as low as $129 on Delta. Other airlines that offer cheap prices include Sun Country Air from $148 and American Airlines from $172 one-way.

  • What are the most popular routes from Louisville to Region of Ontario?

    The most popular flight routes from Louisville to Region of Ontario are Louisville Intl - Toronto Pearson Intl, Louisville Intl - Ottawa and Louisville Intl - London.

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

    The most popular airlines flying from Louisville to Region of Ontario are American Airlines, Air Canada and Delta. Something to consider prior to booking your flight.

  • What does SDF to YYZ mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Louisville Intl Airport to Toronto Pearson Intl Airport flight would often be abbreviated as a SDF to YYZ flight. Ottawa Airport (YOW), Toronto Island Airport (YTZ), Hamilton Airport (YHM), London Airport (YXU), Toronto Kitchener-Waterloo Airport (YKF) are other airports near this flight route and their unique identifiers/IATA codes.

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

    The amount of baggage you can bring on your Louisville to Ontario 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 Louisville to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Louisville to Ontario 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 Louisville to Ontario that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to Ontario 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 Louisville to Ontario that allow pets onboard?

    Many airlines flying from Louisville to Ontario 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 Louisville to Ontario?

    Yes, you can often find last-minute deals on Louisville to Ontario 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 Louisville to Region of Ontario flight deals updated?

    The Louisville to Region of Ontario flight deals you see on this page were last updated on 5/6.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

Louisville to Calgary flights
Louisville to Vancouver Intl flights
Lexington to Vancouver Intl flights
Louisville to Pearson Intl flights
Lexington to Calgary flights
Lexington to Pierre Elliott Trudeau Intl flights
Louisville to Pierre Elliott Trudeau Intl flights
Lexington to Pearson Intl flights
Louisville to Québec City flights
Louisville to Halifax flights
Lexington to Winnipeg flights
Louisville to Ottawa flights
Louisville to Edmonton flights
Lexington to Ottawa flights
Louisville to Victoria flights
Lexington to Québec City flights
Louisville to Charlottetown flights
Lexington to Hamilton flights
Louisville to London flights
Lexington to Halifax flights

Top 4 airlines flying from Louisville to Ontario

Discover the top 4 airlines that operate flights from Louisville to Ontario. 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 2,689,106 searches. Data last updated May 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$185Average$574FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$324Average$466FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$331Average$457FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapest$361Average$408FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Austin to Boston flights
Philadelphia to Fort Lauderdale flights
Los Angeles to Manila flights
Miami to Los Angeles flights
Atlanta to Dallas flights
USA to Singapore flights
Las Vegas to Phoenix flights
Dallas to San Francisco flights
New York to Montreal flights
Seattle to Maui flights
Philadelphia to Phoenix flights
Louisville to Prince Edward Island flights

Search flights from Louisville to Ontario by cabin class

Find flights from Louisville to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Saint Peter Jersey
Flights to Kirkwall Arpt
Flights to Skiathos
Flights to Naxos
Flights to Ningbo Lishe Intl
Flights to Edremit/Korfez
Flights to Bourgas
Flights to Bodø
Flights to Pellston Emmet County
Flights to Cornwall Newquay
Flights to Ordu/Giresun
Flights to Batumi
Flights to Mason City
Flights to Biarritz Parme
Flights to Zakynthos Dionsios Salomos
Flights to Cortez Montezuma County
Flights to Clermont-Ferrand Aulnat
Flights to Nevsehir
Flights to Hyannis Barnstable
Flights to Girona Costa Brava
Flights to Kagoshima
Flights to Perugia Sant Egidio
Flights to Oran Es Senia
Flights to Chios

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Louisville today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Louisville.

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

Certainly. Search results for flights to Ontario from Louisville shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines