ONT - ATW

$299 Find Cheap Flights from Ontario to Appleton

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Appleton departing on 12/5. 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

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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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

Fri, Dec 5 - Tue, Dec 9
Delta Logo
10:59 pm - 11:15 amONT-ATW
10h 16m2 stops
Delta Logo
4:10 pm - 11:46 pmATW-ONT
9h 36m2 stops
$299Delta
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Wed, Sep 10 - Sun, Sep 14
 Logo
8:59 pm - 9:01 pmONT-ATW
22h 02m1 stop
 Logo
2:45 pm - 9:38 pmATW-ONT
8h 53m1 stop
Fri, Dec 5 - Tue, Dec 9
Delta Logo
10:59 pm - 11:15 amONT-ATW
10h 16m2 stops
Delta Logo
5:29 am - 11:24 amATW-ONT
7h 55m1 stop
$344Delta
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Wed, Sep 10 - Sun, Sep 14
 Logo
8:00 am - 11:17 pmONT-ATW
37h 17m2 stops
 Logo
2:45 pm - 9:38 pmATW-ONT
8h 53m1 stop
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
7:00 am - 3:10 pmONT-ATW
6h 10m1 stop
United Airlines Logo
2:43 pm - 10:26 pmATW-ONT
9h 43m1 stop
$379United Airlines
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Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
7:00 am - 4:50 pmONT-ATW
7h 50m1 stop
United Airlines Logo
1:10 pm - 8:17 pmATW-ONT
9h 07m2 stops
$384United Airlines
Find Deal
Tue, Sep 9 - Mon, Sep 15
United Airlines Logo
1:15 pm - 9:08 pmONT-ATW
5h 53m1 stop
United Airlines Logo
2:41 pm - 10:30 pmATW-ONT
9h 49m1 stop
$404United Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
 Logo
1:37 pm - 11:17 pmONT-ATW
31h 40m2 stops
 Logo
2:34 pm - 9:55 pmATW-ONT
9h 21m1 stop
Sat, Feb 21 - Tue, Feb 24
American Airlines Logo
6:47 am - 9:27 pmONT-ATW
12h 40m2 stops
American Airlines Logo
11:25 am - 5:55 pmATW-ONT
8h 30m2 stops
$477American Airlines
Find Deal
Tue, Sep 9 - Sat, Sep 13
American Airlines Logo
6:10 am - 9:32 pmONT-ATW
13h 22m2 stops
American Airlines Logo
6:33 am - 6:16 pmATW-ONT
13h 43m2 stops
$511American Airlines
Find Deal
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.

What’s the cheapest day of the week to fly from Ontario to Appleton?

The average price of all round-trip flights from Ontario to Appleton clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Appleton on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Ontario to Appleton. For your return ticket, we recommend flying on a Wednesday and avoiding Tuesdays for the best deals.

Good to know

Cheapest flight$299
Most popular time to fly with an average 3% 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 3 days, the lowest price for a flight from Ontario to Appleton was $390 for a one-way ticket and $299 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Ontario and Appleton, with SkyTeam 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 $558 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 7.2.

  • 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 8943 reviews
7.3Comfort
7.1Entertainment
8.1Crew
6.6Food
7.7Boarding
Airline reviews

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

6.0 GoodMarydoug, Aug 2025SJC - DEN
Read more United Airlines reviews

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Was not able to watch most shows on the entertainment site. They would not load

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

I didn't like that my paid for seat was changed 2 hours before my flight.

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

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