Cheap Flights from Madison to Ontario International

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Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Find the cheapest month to fly from Madison to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Madison to Ontario International flights are currently cheapest in June.

Madison to Ontario International: Alternative routes

Compare routes from Madison to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Madison to Ontario: Flight information

The things to know before you go.
Cheapest flight foundR 2,136
Cheapest month to flyJune

Finding cheap flights from Madison to Ontario International: Frequently asked questions

The best price we found for a return flight from Madison to Ontario International is R 6,025. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Madison to Ontario International. But we found flights with one or more stops from R 6,025.
As of May 2025, there are no flights flying from Madison to Ontario International.
The cheapest month to fly from Madison to Ontario International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Madison Airport to Ontario International Airport on Wednesday, 11 June 2025.
No airlines currently offer direct flights between Madison Airport and Ontario International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Ontario International.

Travelling from Dane County Regional Airport (MSN) to Ontario International Airport (ONT): what you need to know

  • Ontario's timezone is UTC-7, making Ontario two hours behind Madison.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Get to the airport on time to catch your MSN to ONT flight.

  • During popular months like August, it's a good idea to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead for an international flight whenever you're travelling during a peak period in general.

  • Consider adding a stopover when booking your ticket from Dane County Regional Airport to Ontario International Airport. Simply deselect 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here's where you can stop between MSN and ONT:

    • Denver International Airport

    • Dallas/Fort Worth International Airport

    • Salt Lake City International Airport

How to find the cheapest flights from Dane County Regional Airport (MSN) to Ontario International Airport (ONT)

  • Currently, R 2,136 is the lowest price we've seen for a one-way Dane County Regional Airport to Ontario International Airport flight. The best price for a return ticket is R 6,025. Remember that fares could change due to availability when booking.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from MSN to ONT if you book in advance. Airlines often offer some excellent early bird rates.

  • If you're willing to be flexible with your trip dates, use the 'Whole month' tool. It'll show you the lowest price across every month when looking for a flight from Dane County Regional Airport to Ontario International Airport.

  • Landing cheap flights from MSN to ONT couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll notify you when a new discounted fare appears.

  • Lock in the ideal flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Dane County Regional Airport to Ontario International Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about Dane County Regional Airport (MSN)

  • You'll find MSN at 4000 International Lane.

  • Of the departures from Dane County Regional Airport, 77.89% land on time at their destination.

  • Central Madison to Dane County Regional Airport is approximately 14 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Planning to catch public transport? Expect a journey time of around 1 hour 10 minutes.

  • Get your holiday off to a relaxed start by staying near MSN. Whether you're taking an early flight from Dane County Regional Airport to Ontario International Airport or just don't like being rushed, these stays are ideal:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • You'll find ONT at 2900 E. Airport Drive.

  • Ontario International Airport is approximately 6 kilometres from the centre of Ontario. Driving there takes about 10 minutes.

  • When travelling by public transport, expect a journey of about 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Dane County Regional Airport to Ontario International Airport is May, while August is the most popular. Pick the best time to visit Ontario based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Ontario is August, with temperatures ranging between 15ºC (59ºF) and 35ºC (95ºF). Book your flights from Dane County Regional Airport to Ontario International Airport in this month if this is the kind of weather you like.

  • For cooler conditions, look for a cheap ticket from MSN to ONT in January. Average temperatures are between 4ºC (39ºF) and 23ºC (73ºF) then.

Explore more of United States

  • Los Angeles is just one of the many cities in United States waiting to be discovered once you've seen Ontario. Around 56 kilometres away to the west, its best attractions include Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • San Diego is another favourite destination in United States and is around 153 kilometres south of Ontario. No trip is complete without visiting San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.