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$213+ 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — ONT
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$309
(United Airlines)

One-way from

$213
(Delta)

Popular in

March

Cheapest in

December

Average price

$572
Provider with most accurate pricing for Appleton Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Appleton Intl-Ontario flights.
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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. 20% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/19. 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 3/145:23 pm
ATW
-
ONT
1 stop6h 55m
United Airlines
Wed 3/1811:59 pm
ONT
-
ATW
1 stop6h 22m
United Airlines
Deal found 1/19$309
This American Airlines deal was found by Cheapflights users on 1/17. 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 3/36:15 am
ATW
-
ONT
1 stop9h 34m
American Airlines
Tue 3/1011:58 pm
ONT
-
ATW
2 stops10h 51m
American Airlines
Deal found 1/17$314
This Delta deal was found by Cheapflights users on 1/17. 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 3/34:22 pm
ATW
-
ONT
2 stops9h 27m
Delta
Tue 3/1010:25 pm
ONT
-
ATW
2 stops11h 00m
Delta
Deal found 1/17$320
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Mon 5/115:33 pm
ATW
-
ONT
1 stop6h 57m
United Airlines
Sat 5/167:00 am
ONT
-
ATW
1 stop6h 09m
United Airlines
Deal found 1/18$333
This United Airlines deal was found by Cheapflights users on 1/19. 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 6/52:43 pm
ATW
-
ONT
1 stop9h 43m
United Airlines
Sun 6/77:00 am
ONT
-
ATW
1 stop7h 50m
United Airlines
Deal found 1/19$334
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
Mon 2/169:03 pm
ATW
-
ONT
1 stop18h 08m
Multiple Airlines
Mon 2/236:43 pm
ONT
-
ATW
2 stops43h 57m
Multiple Airlines
Deal found 1/18$338
This Delta deal was found by Cheapflights users on 1/18. 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 5/84:05 pm
ATW
-
ONT
2 stops9h 39m
Delta
Tue 5/1912:00 pm
ONT
-
ATW
1 stop7h 58m
Delta
Deal found 1/18$339
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Sat 3/141:25 pm
ATW
-
ONT
2 stops9h 59m
American Airlines
Wed 3/187:59 pm
ONT
-
ATW
2 stops11h 07m
American Airlines
Deal found 1/19$345
This Delta deal was found by Cheapflights users on 1/17. 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 5/95:29 am
ATW
-
ONT
1 stop7h 51m
Delta
Tue 5/1212:00 pm
ONT
-
ATW
1 stop7h 58m
Delta
Deal found 1/17$349
This American Airlines deal was found by Cheapflights users on 1/18. 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 8/116:35 am
ATW
-
ONT
1 stop9h 06m
American Airlines
Sat 8/1512:47 pm
ONT
-
ATW
1 stop6h 38m
American Airlines
Deal found 1/18$359

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 January 20, 2026.
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

Tue 4/7

2:54 pm-10:26 pm

1 stop9h 32m

Ontario

Tue 4/14

7:00 am-3:11 pm

1 stop6h 11m

$309

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 4/7

12:06 pm-9:00 pm

2 stops10h 54m

Ontario

Tue 4/14

10:15 pm-10:25 am

2 stops10h 10m

$320

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 3/14

1:25 pm-9:24 pm

2 stops9h 59m

Ontario

Wed 3/18

7:59 pm-9:06 am

2 stops11h 07m

$345

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 3/17

4:24 pm-11:51 pm

2 stops9h 27m

Ontario

Wed 3/25

5:09 pm-11:25 am

2 stops16h 16m

$378

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 3/7

5:23 pm-10:51 pm

1 stop7h 28m

Ontario

Wed 3/11

11:59 pm-8:21 am

1 stop6h 22m

$399

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 4/18

5:30 pm-10:26 pm

1 stop6h 56m

Ontario

Tue 4/21

7:00 am-3:11 pm

1 stop6h 11m

$399

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 3/3

6:15 am-1:49 pm

1 stop9h 34m

Ontario

Tue 3/10

10:56 am-9:59 pm

1 stop9h 03m

$407

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Wed 3/18

4:24 pm-11:51 pm

2 stops9h 27m

Ontario

Wed 3/25

5:09 pm-11:25 am

2 stops16h 16m

$418

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Mon 4/6

2:54 pm-10:26 pm

1 stop9h 32m

Ontario

Sat 4/11

7:00 am-4:48 pm

1 stop7h 48m

$424

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 4/4

2:54 pm-10:26 pm

1 stop9h 32m

Ontario

Sat 4/11

7:00 am-4:48 pm

1 stop7h 48m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 18 results
1
2
  • 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, 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 $255). 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 January 20, 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
9,180 reviews

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,180 reviews
United Airlines
7.4
Good
9,180 reviews

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.2
Good
11,164 reviews
United Airlines
7.4
Good
9,180 reviews

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 $309, United Airlines can have you in Ontario from Appleton in 9h 32m. 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. Check Cheapflights for deals on United Airlines for as low as $288. American Airlines is 42% 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, 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 $255). 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$491FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$500FlexibilityNo cancel feeOn-time71%

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