ONT - ATW

$310 Find Cheap Flights from Ontario to Appleton

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Appleton departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Appleton

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Appleton, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Appleton, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$389
Typical prices: $520-$425
American Airlines
Tue 9/8Tue 9/15
ONT - ATW • 1 stop
Cheapest one-way
$310
United Airlines
Fri 9/11
ONT - ATW • 1 stop
Top airlines
Cheapest • from $389 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Appleton. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $503 (round-trip)
Shortest trip • 5h 41m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Appleton!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Appleton (ONT-ATW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Appleton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Appleton

Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
12:33 pm - 10:42 pm
ONT
-
ATW
8h 09m
1 stop
American Airlines Logo
6:01 am - 1:25 pm
ATW
-
ONT
9h 24m
1 stop
$389American Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
12:59 pm - 12:10 am
ONT
-
ATW
9h 11m
2 stops
American Airlines Logo
6:01 am - 1:25 pm
ATW
-
ONT
9h 24m
1 stop
$394American Airlines
Sat, Jul 18 - Mon, Jul 27
Multiple Airlines Logo
11:52 am - 10:34 pm
ONT
-
ATW
8h 42m
1 stop
Multiple Airlines Logo
7:00 am - 8:03 am
ATW
-
ONT
27h 03m
1 stop
$412Multiple Airlines
Sat, Jul 18 - Mon, Jul 27
Multiple Airlines Logo
8:58 am - 9:49 pm
ONT
-
ATW
34h 51m
2 stops
Multiple Airlines Logo
7:00 am - 8:03 am
ATW
-
ONT
27h 03m
1 stop
$413Multiple Airlines
Tue, Jul 7 - Tue, Jul 21
American Airlines Logo
12:35 pm - 10:41 pm
ONT
-
ATW
8h 06m
1 stop
American Airlines Logo
6:00 am - 1:22 pm
ATW
-
ONT
9h 22m
1 stop
$447American Airlines
Sat, Jul 11 - Tue, Jul 14
United Airlines Logo
6:10 am - 3:09 pm
ONT
-
ATW
6h 59m
1 stop
United Airlines Logo
5:29 pm - 10:51 pm
ATW
-
ONT
7h 22m
1 stop
$449United Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
3:40 pm - 9:52 pm
ONT
-
ATW
28h 12m
2 stops
Multiple Airlines Logo
7:00 am - 3:14 pm
ATW
-
ONT
10h 14m
1 stop
$452Multiple Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
9:15 am - 11:18 pm
ONT
-
ATW
12h 03m
2 stops
United Airlines Logo
5:00 pm - 10:35 pm
ATW
-
ONT
7h 35m
1 stop
$454United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
9:15 am - 11:18 pm
ONT
-
ATW
12h 03m
2 stops
United Airlines Logo
7:30 am - 6:12 pm
ATW
-
ONT
12h 42m
2 stops
$459United Airlines
Sat, Jul 18 - Mon, Jul 27
Multiple Airlines Logo
11:52 am - 10:34 pm
ONT
-
ATW
8h 42m
1 stop
Multiple Airlines Logo
9:01 am - 8:03 am
ATW
-
ONT
25h 02m
2 stops
$464Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Appleton flights

Get data-powered insights and trends into flights from Ontario to Appleton to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Ontario to Appleton?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Appleton departing in September.

What is the cheapest month to fly from Ontario to Appleton?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Appleton, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Appleton is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are May and March, where the average cost of round-trip tickets is $806 and $691 respectively.

Good to know

Low seasonFebruary
Cheapest flight$310
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Ontario to Appleton

When to book flights from Ontario to Appleton

Are your dates flexible? Find out the best times to travel from Ontario to Appleton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Appleton

  • What is the cheapest flight from Ontario to Appleton?

    In the last 5 days, the lowest price for a flight from Ontario to Appleton was $295 for a one-way ticket and $389 for a round-trip.

  • Do I need a passport to fly between Ontario and Appleton?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Ontario to Appleton?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Appleton?

    oneworld, and Star Alliance are the airline alliances operating flights between Ontario and Appleton, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Appleton, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Appleton are United Airlines and American Airlines. With an average price for the route of $547 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $546 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Ontario to Appleton?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Appleton.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Appleton?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Appleton from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Appleton?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Appleton with an airline and back to Ontario with another airline. Booking your flights between Ontario and ATW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Appleton?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Appleton from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ontario to Appleton

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Appleton. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Appleton? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9830 reviews
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

Service was professional and quick. Premium economy seat was comfortable given the class

10.0 ExcellentDavid, Jun 2026
SAN - LAX
Read more United Airlines reviews

Service was professional and quick. Premium economy seat was comfortable given the class

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

The flight from LA to Chicago was smooth and service was very good overall.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

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

Information on your arrival and departure airports