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$283+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — ONT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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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 July 3, 2025.

Round-trip from

$294
(Delta)

One-way from

$283
(American Airlines)

Popular in

March

Cheapest in

December

Average price

$779
From Appleton Intl to Ontario
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One-way flight from Appleton Intl to Ontario
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Highest demand for flights based on searches. 21% potential increase in price ($132 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This Delta deal was found by Cheapflights users on 6/30. 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 8/204:12 pmATW - ONT
2 stops9h 28mDelta
Sat 8/2311:45 amONT - ATW
1 stop9h 08mDelta
Deal found 6/30$294
This United Airlines deal was found by Cheapflights users on 7/2. 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 7/174:15 pmATW - ONT
1 stop6h 39mUnited Airlines
Mon 7/215:05 amONT - ATW
1 stop6h 08mUnited Airlines
Deal found 7/2$339
This American Airlines deal was found by Cheapflights users on 7/3. 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.
Tue 8/193:25 pmATW - ONT
1 stop7h 45mAmerican Airlines
Sun 8/2412:22 pmONT - ATW
2 stops9h 12mAmerican Airlines
Deal found 7/3$359
This Trip.com deal was found by Cheapflights users on 7/1. 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.
Mon 7/217:00 amATW - ONT
1 stop15h 52mMultiple Airlines
Thu 7/315:14 pmONT - ATW
1 stop20h 01mMultiple Airlines
Deal found 7/1$370

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 3, 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

Wed 8/20

4:12 pm-11:40 pm

2 stops9h 28m

Ontario

Tue 8/26

11:45 am-10:53 pm

1 stop9h 08m

$294

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Thu 7/17

4:15 pm-8:54 pm

1 stop6h 39m

Ontario

Mon 7/21

5:05 am-1:13 pm

1 stop6h 08m

$339

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 8/19

3:25 pm-9:10 pm

1 stop7h 45m

Ontario

Sun 8/24

12:22 pm-11:34 pm

2 stops9h 12m

$359

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Mon 7/21

7:00 am-8:52 pm

1 stop15h 52m

Ontario

Thu 7/31

5:14 pm-3:15 pm

1 stop20h 01m

$370

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sun 9/21

6:29 am-1:19 pm

1 stop8h 50m

$283

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Thu 7/10

5:29 pm-10:06 pm

1 stop6h 37m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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, August is the cheapest month in which you can book a flight from Appleton to Ontario (average of $246). Flying from Appleton to Ontario in March is currently the most expensive (average of $328). 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 3, 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
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8.0
Very good
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8,861 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
10,000 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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.

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

    Currently priced at $294, Delta will fly you from Appleton to Ontario and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $339 and $359, respectively. Delta is 38% 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, August is the cheapest month in which you can book a flight from Appleton to Ontario (average of $246). Flying from Appleton to Ontario in March is currently the most expensive (average of $328). 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 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$270Average$461FlexibilityNo cancel feeOn-time69%
DeltaCheapest$278Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$453FlexibilityNo cancel feeOn-time71%

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