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Cheap flights from Ontario

Find, compare and book domestic and international flights departing from Ontario

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Tue 3/5
Tue 3/12

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Frequently asked questions regarding flights from Ontario

Which airlines are currently offering the cheapest flights from Ontario?

Our data suggests that currently, the cheapest flights from Ontario are being offered by American Airlines, Ravn Alaska, and Alaska Airlines. For example, American Airlines flights from Ontario to San Francisco, start at $31, Ravn Alaska flights from Ontario to Las Vegas cost around $34, and Alaska Airlines flights from Ontario to Oakland, California are around $45.

What is the cheapest flight available from Ontario?

Currently, the cheapest flight from Ontario found by our users is for $23 to Reno. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $72 to travel from Ontario to Reno.

Which destinations have the most frequent flights from Ontario?

Dallas/Fort Worth Airport, Seattle and Denver are currently the destinations served most frequently from Ontario, with 15, 12 and 9 flights per day on average, respectively.

Which airlines can you fly with from Ontario?

Airlines including American Airlines, Delta and China Airlines frequently fly from Ontario. You can view other airlines by performing a quick search in the form above.

What is the cheapest first class flight from Ontario?

If you are looking for a cheap first class flight, consider flights to Seattle, for which the starting price of a first class seat can be as low as $500.

When did momondo last update prices for flights from Ontario Airport?

Prices for flights from Ontario Airport refresh daily.

How many operators does momondo search for flights from Ontario Airport?

How old do you have to be to fly from Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Cheap one-way flights from Ontario

One-way flight deals momondo users have recently found from Ontario
Frontier
Apr 15
ONT7:53 amOntario
1h 27m
SFO9:20 amSan Francisco
Frontier
May 15
ONT7:58 amOntario
1h 27m
SFO9:25 amSan Francisco
Frontier
Apr 27
ONT7:26 amOntario
2h 20m
DEN10:46 amDenver Intl

Last-minute flight deals from Ontario

Check out these last minute deals our users found for flights departing from Ontario
Frontier
Mar 6
ONT5:50 pmOntario
2h 54m
DFW10:44 pmDallas/Fort Worth
Mar 12
DFW5:45 amDallas/Fort Worth
3h 31m
ONT7:16 amOntario
Frontier
Mar 11
ONT10:58 amOntario
1h 32m
SFO12:30 pmSan Francisco
Mar 14
SFO11:03 amSan Francisco
1h 29m
ONT12:32 pmOntario
Frontier
Mar 7
ONT7:27 amOntario
2h 23m
DEN10:50 amDenver Intl
Mar 13
DEN5:01 amDenver Intl
2h 36m
ONT6:37 amOntario

Cheapest domestic flights from Ontario

Looking to fly domestically? Here are domestic flights momondo users found from Ontario
Frontier
Apr 17
ONT7:58 amOntario
1h 27m
SFO9:25 amSan Francisco
Apr 19
SFO10:15 amSan Francisco
1h 29m
ONT11:44 amOntario
Frontier
Mar 19
ONT12:48 pmOntario
1h 30m
SFO2:18 pmSan Francisco
Mar 23
SFO3:15 pmSan Francisco
1h 28m
ONT4:43 pmOntario
Frontier
Apr 26
ONT12:55 amOntario
2h 24m
DEN4:19 amDenver Intl
May 4
DEN10:35 pmDenver Intl
2h 24m
ONT11:59 pmOntario
Frontier
May 22
ONT7:36 amOntario
1h 26m
SFO9:02 amSan Francisco
May 25
SFO5:15 amSan Francisco
1h 21m
ONT6:36 amOntario
Frontier
Apr 20
ONT5:59 pmOntario
1h 28m
SFO7:27 pmSan Francisco
Apr 22
SFO10:10 amSan Francisco
1h 29m
ONT11:39 amOntario
Frontier
Apr 20
ONT5:59 pmOntario
1h 28m
SFO7:27 pmSan Francisco
Apr 22
SFO10:10 amSan Francisco
1h 29m
ONT11:39 amOntario

Cheapest international flights from Ontario

International flight deals from Ontario, found by momondo users
Virgin Atlantic
Apr 1
ONT12:38 pmOntario
33h 27m
2 stops
ATH8:05 amAthens Eleftherios V.
Apr 16
ATH12:55 pmAthens Eleftherios V.
21h 04m
2 stops
ONT11:59 pmOntario
Virgin Atlantic
Apr 1
ONT12:38 pmOntario
36h 02m
1 stop
ATH10:40 amAthens Eleftherios V.
Apr 16
ATH12:55 pmAthens Eleftherios V.
21h 04m
2 stops
ONT11:59 pmOntario
KLM
Mar 17
ONT12:38 pmOntario
13h 52m
1 stop
AMS10:30 amAmsterdam Schiphol
Apr 2
AMS9:00 amAmsterdam Schiphol
14h 09m
1 stop
ONT2:09 pmOntario
KLM
Mar 27
ONT12:38 pmOntario
13h 52m
1 stop
AMS10:30 amAmsterdam Schiphol
Apr 3
AMS9:00 amAmsterdam Schiphol
14h 09m
1 stop
ONT2:09 pmOntario
United Airlines
Mar 27
ONT5:58 amOntario
17h 07m
2 stops
AMS7:05 amAmsterdam Schiphol
Apr 2
AMS2:50 pmAmsterdam Schiphol
17h 14m
1 stop
ONT11:04 pmOntario
KLM
Apr 8
ONT7:00 amOntario
17h 40m
1 stop
ATH10:40 amAthens Eleftherios V.
Apr 19
ATH12:55 pmAthens Eleftherios V.
20h 02m
1 stop
ONT10:57 pmOntario

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Flight to Ontario
1 adult
Tue 3/5
Tue 3/12
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