HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$289+ Cheap flights from Appleton to Ontario (ATW - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — ONT
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Appleton to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Appleton to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Appleton (ATW) to Ontario (ONT). 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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(Delta)

Popular in

March

Cheapest in

May

Average price

$599
Provider with most accurate pricing for Appleton Intl-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-Ontario flights.
Search Deals
From Appleton Intl to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Appleton to Ontario

Cheapest flights from Appleton to Ontario
Explore the most affordable flight options available from Appleton to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Delta deal was found by Cheapflights users on 11/25. 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.
Fri 12/511:13 amATW - ONT
2 stops13h 34mDelta
Wed 12/1012:12 pmONT - ATW
1 stop7h 52mDelta
Deal found 11/25$409
This Delta deal was found by Cheapflights users on 11/25. 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.
Fri 12/54:18 pmATW - ONT
2 stops9h 40mDelta
Fri 12/1212:12 pmONT - ATW
1 stop7h 52mDelta
Deal found 11/25$444
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:38 pmATW - ONT
1 stop8h 39mMultiple Airlines
Sun 12/286:00 amONT - ATW
2 stops31h 15mMultiple Airlines
Deal found 11/24$453
This Delta deal was found by Cheapflights users on 11/25. 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.
Sat 12/66:00 amATW - ONT
2 stops8h 34mDelta
Fri 12/1212:12 pmONT - ATW
1 stop7h 52mDelta
Deal found 11/25$454
This Delta deal was found by Cheapflights users on 11/26. 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 12/54:18 pmATW - ONT
2 stops9h 40mDelta
Sun 12/710:25 pmONT - ATW
2 stops11h 15mDelta
Deal found 11/26$459
This Delta deal was found by Cheapflights users on 11/25. 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.
Sat 12/66:00 amATW - ONT
2 stops8h 34mDelta
Wed 12/1012:12 pmONT - ATW
1 stop7h 52mDelta
Deal found 11/25$484
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Sat 12/68:30 amATW - ONT
1 stop6h 02mUnited Airlines
Wed 12/101:34 pmONT - ATW
1 stop5h 26mUnited Airlines
Deal found 11/24$494
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Wed 12/312:30 pmATW - ONT
2 stops12h 19mUnited Airlines
Wed 12/101:34 pmONT - ATW
1 stop5h 26mUnited Airlines
Deal found 11/25$499

Cheapflights Fare Finder

 
Customize your flight search to find flights from Appleton 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 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Appleton to Ontario that are best for you.

Fly from

Appleton

Fly to

Ontario

Route

Depart

Return

Price

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 2/7

5:20 am-11:31 am

1 stop8h 11m

Ontario

Wed 2/11

12:41 pm-9:46 pm

1 stop7h 05m

$289

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Wed 1/7

12:35 pm-9:58 pm

2 stops11h 23m

Ontario

Mon 1/12

1:24 pm-8:50 pm

1 stop5h 26m

$384

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 2/7

12:35 pm-8:58 pm

2 stops10h 23m

Ontario

Wed 2/11

5:05 am-4:48 pm

2 stops9h 43m

$389

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 2/7

6:30 am-2:18 pm

1 stop9h 48m

Ontario

Wed 2/11

9:59 am-8:49 pm

2 stops8h 50m

$409

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Fri 12/5

11:13 am-10:47 pm

2 stops13h 34m

Ontario

Wed 12/10

12:12 pm-10:04 pm

1 stop7h 52m

$409

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Wed 12/24

7:25 am-4:07 pm

2 stops10h 42m

$324

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Mon 12/1

8:30 am-12:33 pm

1 stop6h 03m

$485

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sun 12/7

8:30 am-12:32 pm

1 stop6h 02m

$485

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sun 12/7

6:00 am-12:34 pm

2 stops8h 34m

$490

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Mon 12/8

3:42 pm-8:42 pm

2 stops31h 00m

$793

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Compare providers for flights from Appleton to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Appleton to Ontario in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Appleton-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Appleton-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Appleton-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Appleton-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Appleton-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Appleton to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Appleton 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.

Cheapflights Insights

Everything you need to know about your flight from Appleton to Ontario

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

Currently, July is the cheapest month in which you can book a flight from Appleton to Ontario (average of $60). Flying from Appleton to Ontario in March is currently the most expensive (average of $284). 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.

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 November 26, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Appleton to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
9,046 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
11,038 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • How long is the flight from Appleton to Ontario?

    For as low as $289, Delta can have you in Ontario from Appleton in 8h 11m. The distance from Appleton to Ontario is about 1697 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $288, American Airlines will fly you from Appleton to Ontario and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $288 and $293, respectively. American Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $324. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Appleton to Ontario for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Appleton 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.

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

    Currently, July is the cheapest month in which you can book a flight from Appleton to Ontario (average of $60). Flying from Appleton to Ontario in March is currently the most expensive (average of $284). 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.

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 Appleton to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Las Vegas flights
O'Hare Intl to Los Angeles flights
Minneapolis to Las Vegas flights
O'Hare Intl to San Francisco flights
Minneapolis to Los Angeles flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Ontario flights
O'Hare Intl to San Diego flights
O'Hare Intl to Palm Springs flights
Milwaukee to Las Vegas flights
Minneapolis to San Diego flights
Minneapolis to San Francisco flights
O'Hare Intl to Sacramento flights
Minneapolis to Palm Springs flights
Minneapolis to Santa Ana flights
Minneapolis to Ontario flights
O'Hare Intl to Reno flights
Madison to Las Vegas flights
Appleton to Las Vegas flights
O'Hare Intl to San Jose flights
O'Hare Intl to Burbank flights
Milwaukee to Los Angeles flights
Milwaukee to San Diego flights
O'Hare Intl to Oakland flights
Minneapolis to Sacramento flights
Minneapolis to Reno flights
Madison to Los Angeles flights
Minneapolis to San Jose flights
Green Bay to Las Vegas flights
Milwaukee to Ontario flights
Milwaukee to Palm Springs flights
Minneapolis to Burbank flights
Madison to San Diego flights
O'Hare Intl to Fresno flights
Madison to San Francisco flights
O'Hare Intl to Long Beach flights
Milwaukee to Santa Ana flights
O'Hare Intl to Santa Barbara flights
Milwaukee to San Francisco flights
Appleton to San Diego flights
Madison to Ontario flights
Appleton to Los Angeles flights
Milwaukee to Burbank flights
Madison to Palm Springs flights
Minneapolis to Oakland flights
Madison to Santa Ana flights
Minneapolis to Fresno flights
Minneapolis to Long Beach flights
Milwaukee to Reno flights
Appleton to Santa Ana flights

Top 3 airlines flying from Appleton to Ontario

Discover the top 3 airlines that operate flights from Appleton 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 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$483FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$500FlexibilityNo cancel feeOn-time71%
DeltaCheapest$293Average$344FlexibilityNo cancel feeOn-timeN/A

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.