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Cheap flights from Milwaukee to Ontario (MKE - ONT) from $84

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 6/14. 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.
MKE — ONT
6月 12 — 6月 191
From?
To?
水 6/12
水 6/19
1 adult, Economy
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Cheap flight deals from Milwaukee to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) 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 6月 7, 2024.

Popular in

March

Cheapest in

September

Average price

$472

Round-trip from

$238
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 38% potential price drop
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Average for round-trip flights in June 2024
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From Milwaukee-Mitchell to Ontario
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What is the cheapest day to fly round-trip from Milwaukee to Ontario?

Travelers have found that booking a Sunday departure is the best way to save up to 94% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Milwaukee to Ontario?

To save on the cost of your flight from Milwaukee to Ontario, book at least 36 days before your planned departure. Booking around this time can save you about 23% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $318 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $524.

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

October is one of the best times of the year to fly to Ontario from Milwaukee. Prices for October average $371 per person but you can even find prices for as low as $185. The most expensive prices can be found in the month of March. Opting for a October flight can save you 16% on your journey compared to booking in March

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

It’s typically best to fly out from Milwaukee to Ontario in the evening. Doing so could potentially save you 49% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap Milwaukee to Ontario flights in June & July 2024

Find cheap flight options from Milwaukee to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,045,324 searches. Prices were last updated on 6月 7, 2024.
Check out some of the best flight deals from Milwaukee to Ontario in 2024. Check back soon for alternative fares.
金 6/289:20 amMKE - ONT
1 stop14h 03mFrontier
火 7/912:59 amONT - MKE
1 stop5h 47mFrontier
Deal found 6/7$180
金 6/289:20 amMKE - ONT
1 stop14h 03mFrontier
金 7/1212:39 amONT - MKE
1 stop7h 44mFrontier
Deal found 6/7$191
金 7/199:05 pmMKE - ONT
1 stop28h 51mFrontier
月 7/227:19 amONT - MKE
1 stop11h 05mFrontier
Deal found 6/5$199
月 6/1711:23 amMKE - ONT
1 stop11h 12mFrontier
金 6/2810:23 pmONT - MKE
1 stop8h 15mFrontier
Deal found 6/6$216
水 7/179:36 amMKE - ONT
1 stop16h 03mFrontier
月 7/227:19 amONT - MKE
1 stop11h 05mFrontier
Deal found 6/6$223
月 7/159:24 pmMKE - ONT
1 stop12h 03mFrontier
火 7/2312:59 amONT - MKE
1 stop5h 47mFrontier
Deal found 6/6$224
月 7/111:23 amMKE - ONT
1 stop11h 12mFrontier
火 7/912:59 amONT - MKE
1 stop5h 47mFrontier
Deal found 6/7$226
水 7/39:33 amMKE - ONT
1 stop16h 16mFrontier
火 7/912:59 amONT - MKE
1 stop5h 47mFrontier
Deal found 6/7$227
土 6/299:29 amMKE - ONT
1 stop16h 19mFrontier
日 7/712:59 amONT - MKE
1 stop17h 06mFrontier
Deal found 6/7$231

Milwaukee to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Milwaukee and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,045,324 searches. Data last updated 6月 7, 2024.
Check out some of the best flight deals from Milwaukee to Ontario in 2024. Check back soon for alternative fares.
金 6/289:20 amMKE - ONT
1 stop14h 03mFrontier
火 7/912:59 amONT - MKE
1 stop5h 47mFrontier
Deal found 6/7$180
水 9/49:36 amMKE - ONT
1 stop16h 03mFrontier
金 9/2012:49 amONT - MKE
1 stop5h 57mFrontier
Deal found 6/7$181
金 6/289:20 amMKE - ONT
1 stop14h 03mFrontier
金 7/1212:39 amONT - MKE
1 stop7h 44mFrontier
Deal found 6/7$191
金 7/199:05 pmMKE - ONT
1 stop28h 51mFrontier
月 7/227:19 amONT - MKE
1 stop11h 05mFrontier
Deal found 6/5$199
金 8/167:45 pmMKE - ONT
1 stop12h 45mFrontier
金 8/308:27 pmONT - MKE
1 stop10h 19mFrontier
Deal found 6/6$206
水 8/219:36 amMKE - ONT
1 stop12h 01mFrontier
日 8/2512:49 amONT - MKE
1 stop5h 57mFrontier
Deal found 6/6$207
月 6/1711:23 amMKE - ONT
1 stop11h 12mFrontier
金 6/2810:23 pmONT - MKE
1 stop8h 15mFrontier
Deal found 6/6$216
水 7/179:36 amMKE - ONT
1 stop16h 03mFrontier
月 7/227:19 amONT - MKE
1 stop11h 05mFrontier
Deal found 6/6$223
月 7/159:24 pmMKE - ONT
1 stop12h 03mFrontier
火 7/2312:59 amONT - MKE
1 stop5h 47mFrontier
Deal found 6/6$224

Milwaukee to Ontario flights leaving soon

Find last-minute flight options from Milwaukee to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,045,324 searches. Data last updated 6月 7, 2024.
Book one of these great deals on flights from Milwaukee to Ontario. To prevent any unwanted surprises, users should verify their flight info before booking.
月 6/1711:23 amMKE - ONT
1 stop11h 12mFrontier
金 6/2810:23 pmONT - MKE
1 stop8h 15mFrontier
Deal found 6/6$216
金 6/149:20 amMKE - ONT
1 stop16h 24mFrontier
日 6/1612:59 amONT - MKE
1 stop7h 24mFrontier
Deal found 6/7$232
金 6/149:20 amMKE - ONT
1 stop16h 24mFrontier
日 6/1612:59 amONT - MKE
1 stop7h 24mFrontier
Deal found 6/5$237
土 6/159:29 amMKE - ONT
1 stop6h 29mFrontier
金 6/2112:49 amONT - MKE
1 stop5h 49mFrontier
Deal found 6/7$277
月 6/1711:23 amMKE - ONT
1 stop22h 04mFrontier
金 6/2810:23 pmONT - MKE
1 stop8h 15mFrontier
Deal found 6/6$292
土 6/159:29 amMKE - ONT
1 stop6h 29mFrontier
日 6/1612:59 amONT - MKE
1 stop7h 24mFrontier
Deal found 6/6$304
月 6/1711:23 amMKE - ONT
1 stop14h 36mFrontier
木 6/2712:44 amONT - MKE
1 stop5h 45mFrontier
Deal found 6/6$322
月 6/1711:23 amMKE - ONT
1 stop11h 12mFrontier
木 6/2712:44 amONT - MKE
1 stop5h 45mFrontier
Deal found 6/6$358
土 6/159:29 amMKE - ONT
1 stop6h 29mMultiple Airlines
土 6/2210:00 amONT - MKE
1 stop11h 59mMultiple Airlines
Deal found 6/7$562

One-way flights to Ontario from Milwaukee

Search for one-way flight options from Milwaukee to Ontario. 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 3,045,324 searches. Data last updated 6月 7, 2024.
Take a look at some of the best available options we've come across on one-way flights from Milwaukee to Ontario. Users needing a return flight from Milwaukee to Ontario should utilize the search form above.
金 6/149:20 amMKE - ONT
1 stop16h 24mFrontier
Deal found 6/7$84
月 7/159:24 pmMKE - ONT
1 stop12h 03mFrontier
Deal found 6/6$95
金 7/269:38 pmMKE - ONT
1 stop14h 03mFrontier
Deal found 6/6$110
水 8/219:36 amMKE - ONT
1 stop12h 01mFrontier
Deal found 6/7$135
月 7/89:05 pmMKE - ONT
1 stop12h 22mFrontier
Deal found 6/6$141
水 6/269:34 amMKE - ONT
1 stop27h 25mFrontier
Deal found 6/6$164
月 7/89:05 pmMKE - ONT
1 stop12h 22mFrontier
Deal found 6/6$181
土 7/272:40 pmMKE - ONT
1 stop8h 08mUnited Airlines
Deal found 6/7$188
金 7/265:49 pmMKE - ONT
2 stops8h 10mDelta
Deal found 6/6$193

Find flights from Milwaukee to Ontario within your budget

Customize your flight search to find flights from Milwaukee 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 3,045,324 searches. Data last updated 6月 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$180 - $466

Route

Depart

Return

Price

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

金 6/28

1 stop14h 03m

Ontario

火 7/9

1 stop5h 47m

$180

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

金 7/19

1 stop28h 51m

Ontario

月 7/22

1 stop11h 05m

$199

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

金 8/16

1 stop12h 45m

Ontario

金 8/30

1 stop10h 19m

$206

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

水 8/21

1 stop12h 01m

Ontario

日 8/25

1 stop5h 57m

$207

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

月 6/17

1 stop11h 12m

Ontario

金 6/28

1 stop8h 15m

$216

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

日 8/18

1 stop8h 17m

Ontario

金 8/23

1 stop8h 14m

$376

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

火 7/23

1 stop9h 44m

Ontario

火 7/30

1 stop11h 59m

$434

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

金 6/28

1 stop9h 29m

Ontario

土 7/6

1 stop5h 45m

$456

Milwaukee-MitchellOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

木 8/1

1 stop8h 08m

Ontario

木 8/29

1 stop6h 21m

$466

Flights are sorted by cheapest first

Deals found on 6/6

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

Use this chart to determine the cheapest time to fly round-trip from Milwaukee to Ontario. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Milwaukee to Ontario flight should consider departing on Monday evenings when fares are most often at their lowest. Wednesday 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 Milwaukee to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Milwaukee 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 Ontario by month

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

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 6月 7, 2024.
Peruse reviews from past customers who have flown with United Airlines, Frontier and Alaska Airlines from Milwaukee to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,231 reviews

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,231 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,347 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,686 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,204 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Frontier
6.2
Okay
3,978 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

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

  • Can I find flights from Milwaukee to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Milwaukee to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $180, but on average you can expect to pay $240.

  • Are there last-minute flights available from Milwaukee to Ontario for under $300?

    There are currently 20+ open flights from Milwaukee to Ontario within the next 7 days for less than $300.

  • What is the cheapest airline to fly from Milwaukee to Ontario round-trip?

    Our cheapest airline available from Milwaukee to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $180 on this airline. Frontier is priced at 52% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Milwaukee to Ontario one-way?

    The cheapest airlines for a one-way flight from Milwaukee to Ontario are Frontier ($84), United Airlines ($188), and Delta ($193).

  • What does MKE to ONT mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Milwaukee-Mitchell Airport to Ontario Airport flight would often be abbreviated as a MKE to ONT flight.

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

    The amount of baggage you can bring on your Milwaukee to Ontario 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 Milwaukee to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Milwaukee to Ontario 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 Milwaukee to Ontario that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Milwaukee 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.

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

    Many airlines flying from Milwaukee to Ontario 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 Milwaukee to Ontario?

    Yes, you can often find last-minute deals on Milwaukee to Ontario 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 Milwaukee to Ontario flight deals updated?

    The Milwaukee to Ontario flight deals you see on this page were last updated on 6/7.

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

    American Airlines, Delta and Frontier are the most popular airlines when flying from Milwaukee to Ontario.

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

    Currently, October is the cheapest month in which you can book a flight from Milwaukee to Ontario (average of $239). Flying from Milwaukee to Ontario in July is currently the most expensive (average of $327). 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 Milwaukee to Ontario
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Top 4 airlines flying from Milwaukee to Ontario

Discover the top 4 airlines that operate flights from Milwaukee 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 3,045,324 searches. Data last updated 6月 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$217FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$296Average$545FlexibilityNo cancel feeOn-time71%
DeltaCheapest$297Average$387FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$522FlexibilityNo cancel feeOn-time69%
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Search flights from Milwaukee to Ontario by cabin class

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