$29 Cheap Direct Flights to Ontario

ONT

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Cheap Direct Flight Deals to Ontario

Here are some of the best deals found on KAYAK recently from the most popular airlines for direct round-trip flights to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

4:12 pm - 5:39 pmSFO-ONT

1h 27mnonstop

6:41 pm - 8:08 pmONT-SFO

1h 27mnonstop

$52United Airlines

Find Deal

Wed, Jun 4 - Wed, Jun 4

10:45 am - 12:14 pmSFO-ONT

1h 29mnonstop

6:00 am - 7:27 amONT-SFO

1h 27mnonstop

$57United Airlines

Find Deal

Wed, Jun 4 - Sun, Jun 8

10:11 pm - 11:36 pmSFO-ONT

1h 25mnonstop

9:41 pm - 11:15 pmONT-SFO

1h 34mnonstop

$68Frontier

Find Deal

Sat, May 31 - Mon, Jun 2

10:11 pm - 11:39 pmSFO-ONT

1h 28mnonstop

9:41 pm - 11:15 pmONT-SFO

1h 34mnonstop

$69Frontier

Find Deal

Sun, Jun 1 - Mon, Jun 2

7:55 pm - 10:35 pmSEA-ONT

2h 40mnonstop

3:09 pm - 6:03 pmONT-SEA

2h 54mnonstop

$157Delta

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Tue, Jun 3 - Tue, Jun 10

4:10 pm - 5:30 pmDEN-ONT

2h 20mnonstop

3:30 pm - 6:40 pmONT-DEN

2h 10mnonstop

$197Southwest

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Sat, Jun 21 - Wed, Jun 25

9:59 pm - 11:02 pmDFW-ONT

3h 03mnonstop

11:59 pm - 5:00 amONT-DFW

3h 01mnonstop

$204American Airlines

Find Deal

Sat, Jun 7 - Sat, Jun 14

10:41 pm - 11:43 pmDFW-ONT

3h 02mnonstop

11:59 pm - 4:56 amONT-DFW

2h 57mnonstop

$209American Airlines

Find Deal

Wed, May 28 - Wed, Jun 4

2:35 pm - 5:17 pmSEA-ONT

2h 42mnonstop

5:51 pm - 8:50 pmONT-SEA

2h 59mnonstop

$257Delta

Find Deal

Wed, Oct 15 - Wed, Oct 22

8:35 am - 10:05 amHOU-ONT

3h 30mnonstop

1:15 pm - 6:15 pmONT-HOU

3h 00mnonstop

$347Southwest

Find Deal

Fri, May 23 - Wed, May 28

Useful Info

KAYAK's insights & trends for direct flights to Ontario

Get data-powered insights and trends into direct flights to Ontario to help you find the cheapest direct flights, the best time to fly and much more.

Prices

Airlines

On average, a direct flight to Ontario costs $213. However, cheaper non-stop flights can be found. The cheapest direct flight found on KAYAK in the last 2 weeks cost $27 and flew from San Francisco Airport.

Direct departures

United States to Ontario

Monday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Tuesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Wednesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Thursday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Friday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Saturday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Sunday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

See more direct flights

Direct returns

Ontario to United States

Monday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Tuesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Wednesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Thursday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Friday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Saturday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Sunday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

See more direct flights

Low season	February
High season	July
Average price round-trip	$176

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly and prices are also 5% lower on average.

(avg. price over the last 2 weeks)

Everything you need to know for your flight to Ontario

Airlines

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Other airports

Popular routes

Return flight deals

Flights with popular airlines flying to Ontario

Alaska Airlines flights to Ontario

Frontier flights to Ontariofrom $61

American Airlines flights to Ontariofrom $198

United Airlines flights to Ontariofrom $113

Southwest flights to Ontariofrom $38

Delta flights to Ontariofrom $148

ONT

Find Direct Flights to Ontario

Search hundreds of travel sites at once for deals on direct flights to Ontario

Cheap Direct Flight Deals to Ontario

KAYAK's insights & trends for direct flights to Ontario

Get data-powered insights and trends into direct flights to Ontario to help you find the cheapest direct flights, the best time to fly and much more.

How much is a direct flight to Ontario?

On average, a direct flight to Ontario costs $213. However, cheaper non-stop flights can be found. The cheapest direct flight found on KAYAK in the last 2 weeks cost $27 and flew from San Francisco Airport.

Which airlines fly direct to Ontario?

There are 8 airlines that offer nonstop flights to Ontario. These include Southwest, American Airlines and Delta.

Which cities in the United States have direct flights to Ontario?

There are 16 cities in the United States from which you can fly nonstop to Ontario. Major cities include New York, Las Vegas and Chicago.

What is the longest direct flight to Ontario?

The longest nonstop flight to Ontario based on duration and distance traveled departs from Taipei City. The flight lasts around 14h 5m.

How many airports offer direct flights to Ontario?

There are a total of 24 routes that are direct to Ontario. Each week, around 118 direct flights land in Ontario and the most popular nonstop route is from Phoenix Sky Harbor Intl, with around 67 nonstop flights per week.

What is the most popular route for nonstop flights to Ontario?

Based on KAYAK data, the most popular route for a direct flight to Ontario is from Las Vegas. The average price for the route is $112 for a roundtrip.

Which airlines fly direct from the United States to Ontario?

Good to know - Direct flights from the United States to Ontario

Low season

High season

Average price round-trip

Everything you need to know for your flight to Ontario

Flights with popular airlines flying to Ontario

Information on the airport you'll fly into in Ontario

Cabin class types available on flights to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Find direct flights from Ontario

Flights to other popular destinations

Choose which airport to fly into in Ontario

Popular routes to Ontario

Find deals for your return flight