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Cheap flights from Ontario (ONT) to Oshkosh, WI from $276

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 7/8. 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.
ONT — MKE
Jun 15 — Jun 221
From?
To?
Sat 6/15
Sat 6/22
1 adult, Economy
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Cheap flight deals from Ontario to Oshkosh

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Oshkosh (OS9). 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 June 10, 2024.

Popular in

May

Cheapest in

September

Average price

$391

Round-trip from

$321
High demand for flights, 36% potential price rise
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Best time to find cheap flights, 45% potential price drop
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Average for round-trip flights in June 2024
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From Ontario to Oshkosh
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How far in advance should I book a flight from Ontario to Oshkosh?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 49 days in advance, which can save you up to 69% on flights from Ontario to Oshkosh compared to booking the week you need them. Waiting 49 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $429. For sooner than that we have options available in the next 3 days from $487.

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

Our data shows that February tends to be the cheapest month to fly to Oshkosh from Ontario. Users have commonly found prices around $519 for the month, but tickets can be as low as $324. Due to multiple factors, prepare for potentially higher prices in October.

What is the cheapest time of day to fly from ONT to OS9?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Oshkosh as you normally would.

Cheap Ontario to Oshkosh flights in June & July 2024

Find cheap flight options from Ontario to Oshkosh specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,080,152 searches. Prices were last updated on June 10, 2024.
The lowest fares we've come across on flights traveling from Ontario to Oshkosh in June and July 2024. For more flight deals, be sure to check back very soon.
Wed 7/3111:23 amONT - ATW
1 stop8h 45mDelta
Thu 8/84:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$362
Wed 7/3111:23 amONT - ATW
1 stop8h 45mDelta
Fri 8/94:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$443
Wed 7/315:00 pmONT - ATW
2 stops16h 24mDelta
Thu 8/84:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$444
Wed 7/3111:23 amONT - ATW
1 stop8h 45mDelta
Mon 8/54:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$483
Wed 7/3111:23 amONT - ATW
1 stop8h 45mDelta
Wed 8/74:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$513
Wed 7/315:00 pmONT - ATW
2 stops16h 24mDelta
Sat 8/104:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$525
Wed 7/3111:23 amONT - ATW
1 stop8h 45mDelta
Sun 8/46:30 amATW - ONT
2 stops19h 29mDelta
Deal found 6/9$562
Wed 7/106:25 pmONT - ATW
1 stop24h 48mUnited Airlines
Wed 7/178:50 amATW - ONT
1 stop10h 38mUnited Airlines
Deal found 6/9$565
Thu 7/116:25 pmONT - ATW
1 stop24h 48mUnited Airlines
Sat 7/138:50 amATW - ONT
1 stop13h 58mUnited Airlines
Deal found 6/9$575

Ontario to Oshkosh 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Oshkosh in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,080,152 searches. Data last updated June 10, 2024.
The lowest fares we've come across on flights traveling from Ontario to Oshkosh in June and July 2024. For more flight deals, be sure to check back very soon.
Sat 8/1011:23 amONT - ATW
1 stop8h 45mDelta
Wed 8/144:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$287
Fri 8/911:23 amONT - ATW
1 stop8h 45mDelta
Wed 8/144:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$312
Sat 8/1011:23 amONT - ATW
1 stop8h 45mDelta
Tue 8/134:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$318
Sat 10/56:00 amONT - ATW
2 stops11h 01mUnited Airlines
Tue 10/88:33 amATW - ONT
2 stops10h 44mUnited Airlines
Deal found 6/9$328
Wed 8/712:40 pmONT - ATW
1 stop7h 25mAmerican Airlines
Mon 8/126:42 amATW - ONT
1 stop9h 03mAmerican Airlines
Deal found 6/9$338
Wed 8/79:35 amONT - ATW
2 stops10h 30mAmerican Airlines
Mon 8/126:42 amATW - ONT
1 stop9h 03mAmerican Airlines
Deal found 6/9$343
Sat 8/36:05 amONT - ATW
2 stops11h 40mAmerican Airlines
Wed 8/76:42 amATW - ONT
1 stop7h 05mAmerican Airlines
Deal found 6/9$353
Sat 8/36:05 amONT - ATW
2 stops11h 40mAmerican Airlines
Wed 8/711:26 amATW - ONT
2 stops9h 22mAmerican Airlines
Deal found 6/9$358
Tue 8/611:23 amONT - ATW
1 stop8h 45mDelta
Thu 8/84:16 pmATW - ONT
2 stops9h 43mDelta
Deal found 6/9$362

One-way flights to Oshkosh from Ontario

Search for one-way flight options from Ontario to Oshkosh. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,080,152 searches. Data last updated June 10, 2024.
Users traveling one-way from Ontario to Oshkosh can select one of these great deals. For those needing a return trip from Ontario, there is a search form available above.
Mon 7/87:18 pmONT - ATW
2 stops13h 43mAmerican Airlines
Deal found 6/9$276
Mon 7/86:25 pmONT - ATW
1 stop24h 48mUnited Airlines
Deal found 6/9$363
Sun 7/76:15 amONT - ATW
2 stops11h 30mAmerican Airlines
Deal found 6/9$378
Fri 8/307:27 pmONT - ATW
2 stops15h 47mAmerican Airlines
Deal found 6/10$379
Fri 6/211:29 pmONT - ATW
1 stop5h 37mUnited Airlines
Deal found 6/9$404
Sun 6/165:50 amONT - ATW
2 stops13h 16mUnited Airlines
Deal found 6/9$409
Fri 6/216:30 amONT - ATW
2 stops8h 19mAmerican Airlines
Deal found 6/9$414
Fri 6/216:20 amONT - ATW
2 stops12h 46mUnited Airlines
Deal found 6/10$449
Sun 7/712:59 amONT - ATW
1 stop19h 11mAmerican Airlines
Deal found 6/9$528

Find flights from Ontario to Oshkosh within your budget

Customize your flight search to find flights from Ontario to Oshkosh 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 3,080,152 searches. Data last updated June 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$287 - $362

Route

Depart

Return

Price

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Sat 8/10

1 stop8h 45m

Appleton Intl

Wed 8/14

2 stops9h 43m

$287

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Fri 8/9

1 stop8h 45m

Appleton Intl

Wed 8/14

2 stops9h 43m

$312

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Sat 8/10

1 stop8h 45m

Appleton Intl

Tue 8/13

2 stops9h 43m

$318

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Sat 10/5

2 stops11h 01m

Appleton Intl

Tue 10/8

2 stops10h 44m

$328

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Wed 8/7

1 stop7h 25m

Appleton Intl

Mon 8/12

1 stop9h 03m

$338

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Wed 8/7

2 stops10h 30m

Appleton Intl

Mon 8/12

1 stop9h 03m

$343

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Sat 8/3

2 stops11h 40m

Appleton Intl

Wed 8/7

1 stop7h 05m

$353

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Sat 8/3

2 stops11h 40m

Appleton Intl

Wed 8/7

2 stops9h 22m

$358

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Tue 8/6

1 stop8h 45m

Appleton Intl

Thu 8/8

2 stops9h 43m

$362

Flights are sorted by cheapest first

Deals found on 6/9

What is the cheapest day to fly from Ontario to Oshkosh?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Oshkosh. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Oshkosh flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Oshkosh

Have a flexible travel schedule? Discover the best time to fly to Oshkosh from Ontario 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.

Temperature and rainfall in Oshkosh by month

Plan your trip to Oshkosh by taking into account the average temperature and rainfall totals by month.

ATW

Temperature

17.6 - 71.6 °F

If weather is an important factor for your trip to Oshkosh, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

Reviews of airlines servicing Oshkosh

Get insights into the airlines that provide service to Oshkosh. 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 Oshkosh. Reviews last updated June 10, 2024.
Get a feel of what it's like to fly with United Airlines, Delta and American Airlines from Ontario to Oshkosh by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.0
Very good
10,295 reviews
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

United Airlines
7.4
Good
10,647 reviews
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

American Airlines
7.3
Good
14,138 reviews
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Oshkosh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Oshkosh?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Oshkosh from Ontario. Booking flights from Ontario (ONT) to Oshkosh should be relatively easy as there are 0 daily outbound flights to Oshkosh from 5 different airlines.

  • Can I find flights from Ontario to Oshkosh for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to Oshkosh for under $300. The cheapest flight booked recently is on Delta for just $287, but on average you can expect to pay $389.

  • What does ONT to MKE mean?

    ONT stands for Ontario Airport, while MKE stands for Milwaukee-Mitchell Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Madison Truax Field Airport (MSN), Appleton Intl Airport (ATW), Green Bay Austin-Straubel Airport (GRB), Wausau Central Wisconsin Airport (CWA) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Ontario to Oshkosh that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Oshkosh flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Oshkosh with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Oshkosh flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Oshkosh that include hotel bookings?

    Yes. In addition to deals on Ontario to Oshkosh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Oshkosh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Oshkosh.

  • Can I find deals for business class flights from Ontario to Oshkosh?

    Yes. Cheapflights offers flight deals from Ontario to Oshkosh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Oshkosh that allow pets onboard?

    Many airlines flying from Ontario to Oshkosh offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Oshkosh?

    Yes, you can often find last-minute deals on Ontario to Oshkosh flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Oshkosh flight deals updated?

    The Ontario to Oshkosh flight deals you see on this page were last updated on 6/9.

  • What are the most popular airlines that fly from Ontario to Oshkosh?

    The most popular airlines flying from Ontario to Oshkosh are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

  • What is the cheapest month to book a flight from Ontario to Oshkosh?

    Currently, December is the cheapest month in which you can book a flight from Ontario to Oshkosh (average of $263). Flying from Ontario to Oshkosh in June is currently the most expensive (average of $373). 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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Alternative routes for Ontario to Oshkosh
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Top 5 airlines flying from Ontario to Oshkosh

Discover the top 5 airlines that operate flights from Ontario to Oshkosh. 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 3,080,152 searches. Data last updated June 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$132Average$234FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$185Average$303FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$263Average$605FlexibilityNo cancel feeOn-time69%
DeltaCheapest$278Average$499FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$298Average$559FlexibilityNo cancel feeOn-time71%
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Ontario to Osaka flights

Search flights from Ontario to Oshkosh by cabin class

Find flights from Ontario to Oshkosh, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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