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Ontario

$152+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — ONT
Apr 28 — May 51
Tue 4/28
Tue 5/5
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 March 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Thu 5/146:30 am
ATW
-
ONT
2 stops27h 05m
Multiple Airlines
Tue 5/191:50 pm
ONT
-
ATW
1 stop23h 27m
Multiple Airlines
Deal found 3/28$347
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Tue 4/283:46 pm
ATW
-
ONT
1 stop8h 45m
United Airlines
Sat 5/27:00 am
ONT
-
ATW
1 stop6h 10m
United Airlines
Deal found 3/24$369
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:57 am
ATW
-
ONT
2 stops9h 27m
American Airlines
Sat 5/212:19 pm
ONT
-
ATW
2 stops9h 21m
American Airlines
Deal found 3/24$379
This Delta deal was found by Cheapflights users on 3/23. 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 4/285:30 am
ATW
-
ONT
1 stop8h 06m
Delta
Thu 5/712:08 pm
ONT
-
ATW
1 stop8h 25m
Delta
Deal found 3/23$394
This Delta deal was found by Cheapflights users on 3/23. 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 5/27:00 am
ATW
-
ONT
2 stops11h 25m
Delta
Thu 5/712:08 pm
ONT
-
ATW
1 stop8h 25m
Delta
Deal found 3/23$399
This Delta deal was found by Cheapflights users on 3/25. 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 8/1410:55 am
ATW
-
ONT
2 stops9h 06m
Delta
Mon 8/1710:59 pm
ONT
-
ATW
2 stops11h 47m
Delta
Deal found 3/25$404
This Delta deal was found by Cheapflights users on 3/23. 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 4/285:30 am
ATW
-
ONT
1 stop8h 06m
Delta
Fri 5/812:08 pm
ONT
-
ATW
1 stop8h 25m
Delta
Deal found 3/23$424
This Delta deal was found by Cheapflights users on 3/23. 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 5/27:00 am
ATW
-
ONT
2 stops11h 25m
Delta
Fri 5/812:08 pm
ONT
-
ATW
1 stop8h 25m
Delta
Deal found 3/23$429
This Delta deal was found by Cheapflights users on 3/23. 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 4/305:30 am
ATW
-
ONT
1 stop8h 06m
Delta
Thu 5/712:08 pm
ONT
-
ATW
1 stop8h 25m
Delta
Deal found 3/23$444
This Delta deal was found by Cheapflights users on 3/23. 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 4/285:30 am
ATW
-
ONT
1 stop8h 06m
Delta
Sat 5/912:07 pm
ONT
-
ATW
1 stop8h 26m
Delta
Deal found 3/23$448

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 March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$347
(Kiwi.com)

One-way from

$152
(Kiwi.com)

Popular in

March

Cheapest in

December

Average price

$4,044
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. 54% potential increase in price ($888 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 65% potential price decrease ($300 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 29, 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

Tue 4/28

5:35 pm-10:31 pm

1 stop6h 56m

Ontario

Sat 5/2

10:43 am-11:05 pm

2 stops10h 22m

$374

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Thu 4/30

5:30 am-11:36 am

1 stop8h 06m

Ontario

Thu 5/7

12:08 pm-10:33 pm

1 stop8h 25m

$444

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 4/28

5:30 am-11:36 am

1 stop8h 06m

Ontario

Sat 5/9

12:07 pm-10:33 pm

1 stop8h 26m

$448

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 5/12

6:20 am-1:18 pm

1 stop8h 58m

Ontario

Mon 5/18

7:35 pm-10:14 am

2 stops12h 39m

$462

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Thu 5/21

5:30 pm-10:46 pm

1 stop7h 16m

Ontario

Sun 5/24

1:18 pm-9:04 pm

1 stop5h 46m

$469

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Wed 4/29

2:54 pm-10:31 pm

1 stop9h 37m

Ontario

Sat 5/2

7:00 am-4:50 pm

1 stop7h 50m

$469
Quickest round-trip

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 5/19

5:38 pm-10:35 pm

1 stop6h 57m

Ontario

Wed 5/27

1:18 pm-9:04 pm

1 stop5h 46m

$469

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Tue 6/2

3:47 pm-10:46 pm

1 stop8h 59m

Ontario

Tue 6/9

6:30 am-3:11 pm

1 stop6h 41m

$469

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Fri 5/1

5:38 pm-10:35 pm

1 stop6h 57m

Ontario

Thu 5/7

7:00 am-3:10 pm

1 stop6h 10m

$494

AppletonOntario

ATW - ONT

ATWONT

Appleton Intl

Sat 5/16

10:35 am-9:58 pm

2 stops13h 23m

Ontario

Mon 5/25

6:30 am-4:54 pm

1 stop8h 24m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
  • 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 February is currently the most expensive (average of $251). 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 March 29, 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
9,509 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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
9,509 reviews
United Airlines
7.4
Good
9,509 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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
7.1
Good
11,521 reviews
United Airlines
7.4
Good
9,509 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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 $374, United Airlines can have you in Ontario from Appleton in 6h 56m. 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 61% 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 February is currently the most expensive (average of $251). 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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Alternative routes for Appleton to Ontario

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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 March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$491FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$485FlexibilityNo cancel feeOn-time71%

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