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Ontario

$280+ Cheap flights from Appleton to Ontario (ATW - ONT)

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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — ONT
Aug 10 — Aug 171
Mon 8/10
Mon 8/17
1 adult, Economy
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Cheap 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 July 11, 2026.

This Delta deal was found by Cheapflights users on 7/8. 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 8/235:31 am
ATW
-
ONT
1 stop7h 11m
Delta
Wed 9/212:00 pm
ONT
-
ATW
1 stop8h 44m
Delta
Deal found 7/8$349
This Delta deal was found by Cheapflights users on 7/7. 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 10/75:35 am
ATW
-
ONT
1 stop7h 33m
Delta
Mon 10/1211:15 pm
ONT
-
ATW
2 stops10h 23m
Delta
Deal found 7/7$354
This Delta deal was found by Cheapflights users on 7/6. 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 8/235:31 am
ATW
-
ONT
1 stop7h 11m
Delta
Sat 8/2912:00 pm
ONT
-
ATW
1 stop8h 44m
Delta
Deal found 7/6$384
This Delta deal was found by Cheapflights users on 7/8. 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 8/225:31 am
ATW
-
ONT
1 stop7h 11m
Delta
Wed 9/212:00 pm
ONT
-
ATW
1 stop8h 44m
Delta
Deal found 7/8$389
This Delta deal was found by Cheapflights users on 7/8. 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.
Mon 8/242:06 pm
ATW
-
ONT
2 stops11h 28m
Delta
Sat 8/2912:00 pm
ONT
-
ATW
1 stop8h 44m
Delta
Deal found 7/8$394
This Delta deal was found by Cheapflights users on 7/8. 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 8/235:31 am
ATW
-
ONT
1 stop7h 11m
Delta
Fri 9/412:00 pm
ONT
-
ATW
1 stop8h 44m
Delta
Deal found 7/8$414
This Delta deal was found by Cheapflights users on 7/9. 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 8/215:31 am
ATW
-
ONT
1 stop7h 11m
Delta
Fri 8/2812:00 pm
ONT
-
ATW
1 stop8h 44m
Delta
Deal found 7/9$419
This Delta deal was found by Cheapflights users on 7/8. 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 7/302:05 pm
ATW
-
ONT
2 stops11h 43m
Delta
Sat 8/112:00 pm
ONT
-
ATW
1 stop8h 31m
Delta
Deal found 7/8$424
This Delta deal was found by Cheapflights users on 7/8. 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.
Tue 10/65:35 am
ATW
-
ONT
1 stop7h 33m
Delta
Wed 10/1412:18 pm
ONT
-
ATW
1 stop7h 41m
Delta
Deal found 7/8$434
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Mon 8/2412:36 pm
ATW
-
ONT
1 stop8h 11m
American Airlines
Sat 8/2912:33 pm
ONT
-
ATW
1 stop8h 09m
American Airlines
Deal found 7/9$442
This American Airlines deal was found by Cheapflights users on 7/9. 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 8/56:02 am
ATW
-
ONT
1 stop7h 41m
American Airlines
Sat 8/812:33 pm
ONT
-
ATW
1 stop8h 09m
American Airlines
Deal found 7/9$447
This United Airlines deal was found by Cheapflights users on 7/6. 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 9/185:00 pm
ATW
-
ONT
1 stop7h 59m
United Airlines
Tue 9/227:00 am
ONT
-
ATW
1 stop6h 33m
United Airlines
Deal found 7/6$449

Find 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 July 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(Delta)

One-way from

$280
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$586
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
One-way flight from Appleton Intl to Ontario
Search Deals
Highest demand for flights based on searches. 51% potential increase in price ($971 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 46% potential price decrease ($286 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 11, 2026.
Use the filters below to find and compare flights from Appleton to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sun 8/23

5:31 am-10:42 am

1 stop7h 11m

Ontario

Wed 9/2

12:00 pm-10:44 pm

1 stop8h 44m

$349

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 8/25

5:31 am-10:42 am

1 stop7h 11m

Ontario

Tue 9/1

12:00 pm-10:44 pm

1 stop8h 44m

$349

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Thu 8/27

5:31 am-10:42 am

1 stop7h 11m

Ontario

Tue 9/1

12:00 pm-10:44 pm

1 stop8h 44m

$349

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Wed 8/26

5:31 am-10:42 am

1 stop7h 11m

Ontario

Tue 9/1

12:00 pm-10:44 pm

1 stop8h 44m

$349

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sun 8/23

5:31 am-10:42 am

1 stop7h 11m

Ontario

Sat 8/29

12:00 pm-10:44 pm

1 stop8h 44m

$389

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Mon 8/24

2:06 pm-11:34 pm

2 stops11h 28m

Ontario

Sat 8/29

12:00 pm-10:44 pm

1 stop8h 44m

$424
Quickest round-trip

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Fri 9/18

5:00 pm-10:59 pm

1 stop7h 59m

Ontario

Tue 9/22

7:00 am-3:33 pm

1 stop6h 33m

$449

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 8/25

5:00 pm-10:35 pm

1 stop7h 35m

Ontario

Tue 9/1

9:01 am-8:54 pm

2 stops9h 53m

$454

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Wed 8/26

7:30 am-8:01 pm

2 stops14h 31m

Ontario

Sat 8/29

5:00 am-4:57 pm

2 stops9h 57m

$459

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 10/6

5:35 am-11:08 am

1 stop7h 33m

Ontario

Tue 10/13

12:18 pm-9:59 pm

1 stop7h 41m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Appleton-Ontario flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, February is the cheapest month in which you can book a flight from Appleton to Ontario (average of $344). Flying from Appleton to Ontario in March is currently the most expensive (average of $4,044). 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.

How much does it cost to fly round-trip from Appleton to Ontario?

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 July 11, 2026.
Peruse reviews from past customers who have flown with 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.
United Airlines
7.4
Good
9,976 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.
United Airlines
7.4
Good
9,976 reviews
United Airlines
7.4
Good
9,976 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.
American Airlines
7.1
Good
11,806 reviews
United Airlines
7.4
Good
9,976 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.

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 $349, Delta can have you in Ontario from Appleton in 7h 11m. The distance from Appleton to Ontario is about 1697 mi.

  • 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. Check Cheapflights for deals on United Airlines for as low as $330. American Airlines is 68% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, February is the cheapest month in which you can book a flight from Appleton to Ontario (average of $344). Flying from Appleton to Ontario in March is currently the most expensive (average of $4,044). 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

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Top 2 airlines flying from Appleton to Ontario

Discover the top 2 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 July 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$611FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$330Average$543FlexibilityNo cancel feeOn-time69%

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