Insights
Latest deals
Reviews
FAQs

Cheap flights from Ontario to Milwaukee from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Milwaukee departing on 4/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
From?
To?
Tue 4/2
Tue 4/9

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."

Cheap Ontario to Milwaukee (ONT to MKE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Milwaukee

Best Price Found

$80

Fastest flight time

5h 39m

Direct flights

None

Airports in Milwaukee

1 airport
The best one-way flight to Milwaukee from Ontario in the past 72 hours is $80. The best round-trip flight deal from Ontario to Milwaukee found on momondo in the last 72 hours is $88.
The fastest flight from Ontario to Milwaukee takes 5h 39m
There are no direct flights from Ontario to Milwaukee. Popular non-direct route for this connection is Ontario Airport - Milwaukee-Mitchell Airport.
There is 1 airport near Milwaukee: Milwaukee-Mitchell (MKE)

How to get the cheapest flight ticket from Ontario to Milwaukee

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

September. The cheapest time of year to fly to Milwaukee from Ontario is September. Most expensive is February

What is the cheapest day to depart Ontario for Milwaukee?

Saturday. The cheapest day of the week is typically Saturday. The most expensive is typically Sunday

When is the cheapest time to fly from Ontario to Milwaukee?

In the evening. Ontario to Milwaukee flights are approximately 31% more expensive at noon than in the evening

What is the cheapest airline that flies to Milwaukee from Ontario?

Frontier. American Airlines, Delta, and Frontier are the most popular carriers operating from Ontario to Milwaukee

What is the cheapest Ontario to Milwaukee flight route?

Ontario - Milwaukee-Mitchell. Fly from Ontario to Milwaukee-Mitchell for the best Ontario - Milwaukee flight prices

How far in advance should you book Ontario to Milwaukee flights?

9 days before. The cheapest time to buy a flight from Ontario to Milwaukee is approximately 9 days to departure

If you are looking to fly from Ontario to Milwaukee, you are most likely going to fly from Ontario Airport to Milwaukee-Mitchell Airport, the most popular airports on that route. When booking your trip to Milwaukee, it is helpful to have an alternative airport to fly out of. Good options for departure airports when traveling to Milwaukee, you can try Los Angeles Airport (in Los Angeles), Burbank Bob Hope Airport (in Burbank), or Santa Ana J. Wayne/Orange Cnty Airport (in Santa Ana). When traveling from Ontario, it is helpful to have an alternative airport to fly into when you land in Milwaukee. Good options for arrival airports in Milwaukee, you can try Chicago O'Hare Intl Airport (in Chicago), Chicago Midway Airport (in Chicago), or Madison Truax Field Airport (in Madison). The cheapest route from Ontario to Milwaukee is LAX — ORD with an average price of $89 RT during the month of March.

Los Angeles Airport (LAX) to Chicago O'Hare Intl Airport (ORD)$89
Search
Los Angeles Airport (LAX) to Chicago Midway Airport (MDW)$140
Search
Ontario Airport (ONT) to Chicago O'Hare Intl Airport (ORD)$136
Search
Burbank Bob Hope Airport (BUR) to Chicago O'Hare Intl Airport (ORD)$160
Search
Santa Ana J. Wayne/Orange Cnty Airport (SNA) to Chicago O'Hare Intl Airport (ORD)$152
Search
Ontario Airport (ONT) to Chicago Midway Airport (MDW)$136
Search

Easily compare round-trip flights from Ontario to Milwaukee

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to Milwaukee by changing tabs
Frontier
Apr 18
ONT12:34 pmOntario
27h 24m
1 stop
MKE5:58 pmMilwaukee-Mitchell
May 6
MKE9:26 amMilwaukee-Mitchell
23h 00m
1 stop
ONT6:26 amOntario
Multiple Airlines
Apr 23
ONT12:59 amOntario
7h 57m
1 stop
MKE10:56 amMilwaukee-Mitchell
Apr 30
MKE4:37 pmMilwaukee-Mitchell
7h 20m
1 stop
ONT9:57 pmOntario
Frontier
Apr 23
ONT12:59 amOntario
7h 57m
1 stop
MKE10:56 amMilwaukee-Mitchell
Apr 29
MKE12:48 pmMilwaukee-Mitchell
11h 09m
1 stop
ONT9:57 pmOntario
Frontier
Apr 23
ONT12:59 amOntario
7h 57m
1 stop
MKE10:56 amMilwaukee-Mitchell
May 1
MKE11:56 amMilwaukee-Mitchell
14h 03m
1 stop
ONT11:59 pmOntario
Frontier
Apr 18
ONT12:34 pmOntario
27h 24m
1 stop
MKE5:58 pmMilwaukee-Mitchell
Apr 22
MKE12:48 pmMilwaukee-Mitchell
20h 15m
1 stop
ONT7:03 amOntario
Frontier
Apr 18
ONT12:34 pmOntario
27h 24m
1 stop
MKE5:58 pmMilwaukee-Mitchell
Apr 24
MKE11:56 amMilwaukee-Mitchell
14h 03m
1 stop
ONT11:59 pmOntario

Find the cheapest one-way flights from Ontario to Milwaukee

If you're looking for one-way flights from Ontario to Milwaukee, view some of our deals below provided by American Airlines and Frontier
Frontier
Apr 9
ONT12:59 amOntario
7h 57m
1 stop
MKE10:56 amMilwaukee-Mitchell
Multiple Airlines
Apr 22
ONT6:51 pmOntario
18h 56m
1 stop
MKE3:47 pmMilwaukee-Mitchell
Frontier
Apr 29
ONT10:59 pmOntario
33h 57m
2 stops
MKE10:56 amMilwaukee-Mitchell

Search last-minute flights to Milwaukee from Ontario

Find and compare round-trip flight prices for your last-minute flight from Ontario to Milwaukee
Frontier
Apr 7
ONT5:42 pmOntario
25h 39m
1 stop
MKE9:21 pmMilwaukee-Mitchell
Apr 12
MKE6:58 pmMilwaukee-Mitchell
29h 00m
1 stop
ONT9:58 pmOntario
Multiple Airlines
Apr 5
ONT10:45 pmOntario
20h 11m
1 stop
MKE8:56 pmMilwaukee-Mitchell
Apr 9
MKE2:06 pmMilwaukee-Mitchell
12h 03m
1 stop
ONT12:09 amOntario
Frontier
Apr 7
ONT7:27 amOntario
26h 18m
2 stops
MKE11:45 amMilwaukee-Mitchell
Apr 12
MKE4:35 pmMilwaukee-Mitchell
15h 51m
1 stop
ONT6:26 amOntario
Frontier
Apr 3
ONT9:00 amOntario
7h 41m
1 stop
MKE6:41 pmMilwaukee-Mitchell
Apr 7
MKE12:36 pmMilwaukee-Mitchell
20h 01m
1 stop
ONT6:37 amOntario
United Airlines
Apr 2
ONT5:15 amOntario
6h 00m
1 stop
MKE1:15 pmMilwaukee-Mitchell
Apr 3
MKE8:15 amMilwaukee-Mitchell
14h 25m
1 stop
ONT8:40 pmOntario
Frontier
Apr 4
ONT7:27 amOntario
30h 44m
2 stops
MKE4:11 pmMilwaukee-Mitchell
Apr 5
MKE10:15 pmMilwaukee-Mitchell
11h 35m
1 stop
ONT7:50 amOntario

Best airlines flying from Ontario to Milwaukee

Compare and see reviews for airlines that fly from Ontario to Milwaukee with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $136Free CancellationRating
6.3
4,275 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $185Free CancellationRating
6.4
8,850 reviews
Search Spirit Airlines flights
DeltaPriceFrom $283Free CancellationRating
8.0
11,437 reviews
Search Delta flights
United AirlinesPriceFrom $385Free CancellationRating
7.4
11,509 reviews
Search United Airlines flights
American AirlinesPriceFrom $421Free CancellationRating
7.3
15,231 reviews
Search American Airlines flights

Frontier flights from Ontario to Milwaukee

Our best Frontier deals on Ontario to Milwaukee flight tickets
Frontier
Apr 18
ONT12:34 pmOntario
27h 24m
1 stop
MKE5:58 pmMilwaukee-Mitchell
May 6
MKE9:26 amMilwaukee-Mitchell
23h 00m
1 stop
ONT6:26 amOntario
Frontier
Apr 23
ONT12:59 amOntario
7h 57m
1 stop
MKE10:56 amMilwaukee-Mitchell
Apr 29
MKE12:48 pmMilwaukee-Mitchell
11h 09m
1 stop
ONT9:57 pmOntario
Frontier
Apr 23
ONT12:59 amOntario
7h 57m
1 stop
MKE10:56 amMilwaukee-Mitchell
May 1
MKE11:56 amMilwaukee-Mitchell
14h 03m
1 stop
ONT11:59 pmOntario

JetBlue flights from Ontario to Milwaukee

Our best JetBlue deals on Ontario to Milwaukee flight tickets
JetBlue
May 3
ONT11:40 pmOntario
9h 22m
1 stop
MKE11:02 amMilwaukee-Mitchell
May 8
MKE11:35 amMilwaukee-Mitchell
12h 34m
1 stop
ONT10:09 pmOntario
JetBlue
May 10
ONT11:40 pmOntario
9h 10m
1 stop
MKE10:50 amMilwaukee-Mitchell
May 15
MKE11:35 amMilwaukee-Mitchell
12h 34m
1 stop
ONT10:09 pmOntario
JetBlue
May 2
ONT11:40 pmOntario
9h 22m
1 stop
MKE11:02 amMilwaukee-Mitchell
May 7
MKE11:35 amMilwaukee-Mitchell
12h 34m
1 stop
ONT10:09 pmOntario

  • How far is Ontario to Milwaukee-Mitchell by plane?

    The straight-line distance from Ontario to Milwaukee-Mitchell is 1710.4 mi. Flights usually cover this in 5h 39m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Milwaukee-Mitchell Airport?

    Prices for flights from Ontario Airport to Milwaukee-Mitchell Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Milwaukee-Mitchell Airport?

  • How old do you have to be to fly from Ontario Airport to Milwaukee-Mitchell Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Milwaukee-Mitchell Airport.

  • What documentation or ID do you need to fly to Milwaukee-Mitchell Airport?

    The travel and health documents required for your trip to Milwaukee-Mitchell Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Milwaukee-Mitchell Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Alternative routes for Ontario to Milwaukee

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Los Angeles to Milwaukee Flights
Fastest flight time5h 49m
Cheapest price$160
San Francisco to Milwaukee Flights
Fastest flight time7h 19m
Cheapest price$194
Santa Ana to Milwaukee Flights
Fastest flight time6h 31m
Cheapest price$214
San Francisco to Madison Flights
Fastest flight time5h 18m
Cheapest price$230
Los Angeles to Madison Flights
Fastest flight time4h 00m
Cheapest price$220
San Diego to Milwaukee Flights
Fastest flight time7h 59m
Cheapest price$169
Ontario to Madison Flights
Fastest flight time6h 00m
Cheapest price$236
San Diego to Madison Flights
Fastest flight time5h 58m
Cheapest price$264
Burbank to Milwaukee Flights
Fastest flight time6h 18m
Cheapest price$221
Sacramento to Milwaukee Flights
Fastest flight time6h 59m
Cheapest price$192
San Jose to Milwaukee Flights
Fastest flight time5h 34m
Cheapest price$204
Oakland, California to Milwaukee Flights
Fastest flight time5h 41m
Cheapest price$214

Similar Ontario to Milwaukee flights

Flexible with your destination? Broaden your search and find flights similar to your Ontario to Milwaukee route

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Milwaukee?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Milwaukee. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Milwaukee with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Milwaukee flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Milwaukee?

momondo provides multiple filters to help you find the best flight to Milwaukee from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Milwaukee right now. Can momondo alert me if prices change?

Price alerts on flights to Milwaukee from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


An easier way to manage your Milwaukee trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? Create a price alert to track prices.

Find better results for your stay in the United States


Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 4/2
Tue 4/9
Email me momondo's favorite deals