Cheap flights from Ontario to Osaka from $431
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 Osaka departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ontario to Osaka
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 day to depart on your flight to Osaka?
According to our data, Tuesday is the cheapest day to fly to Osaka from Ontario. The lowest ticket price found for a Tuesday departure recently was $813. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Osaka for around $963.
What is the cheapest time of day to depart on your flight to Osaka?
Our data shows that the cheapest Ontario to Osaka flights are usually those with departure times in the afternoon. Our users have found flights to Osaka in the afternoon for as low as $834. Flights to Osaka are more costly in the evening, with an average ticket price of $1,091. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest airline that flies from Ontario to Osaka?
Korean Air, Delta, and United Airlines are the most popular carriers operating from Ontario to Osaka
What airlines fly to Osaka?
Japan Airlines, ANA and American Airlines are the top three most popular airlines that fly to Osaka from Ontario according to our data. Japan Airlines is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Osaka. Keep in mind that there are 13 different airlines that fly to Osaka on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Osaka
Cheap Ontario to Osaka (ONT to OSA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Osaka
How far is Ontario to Osaka by plane?
The straight-line distance from Ontario to Osaka is 5733.7 mi. 16h 36m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Osaka?
Prices for flights from Ontario Airport to Osaka are updated daily.
How many operators does momondo search for flights from Ontario Airport to Osaka?
As of June 2025, there are 2 operators available to choose from for flights from Ontario Airport to Osaka.
How old do you have to be to fly from Ontario Airport to Osaka?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Osaka.
What documentation or ID do you need to fly to Osaka?
The necessary travel and health documents for your Osaka trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Ontario to Osaka
Compare and see reviews for airlines that fly from Ontario to Osaka with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $826 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $1,039 | Free Cancellation | Rating 8.3 740 reviews |
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Why should I use momondo to find a flight deal from Ontario to Osaka?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Osaka. momondo saves you time and could save you money on your trip.
Can I find flights from Ontario to Osaka with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ontario to Osaka flights to just show those with flexible booking policies.
How can momondo help me find flights from Ontario to Osaka?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Osaka.
I’m not ready to book a flight from Ontario to Osaka right now. Can momondo alert me if prices change?
Price alerts on flights to Osaka 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.