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Roundtrip Flights to Ontario International Airport (ONT)

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Round TripOne Way
BOI Boise
LAX Los Angeles
From $110.81
Jan 17, 2026 - Jan 20, 2026
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PDX Portland
LAX Los Angeles
From $133.90
Jan 24, 2026 - Jan 27, 2026
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SEA Seattle
LAX Los Angeles
From $135.90
Jan 23, 2026 - Jan 26, 2026
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AUS Austin
LAX Los Angeles
From $144.99
Jan 27, 2026 - Feb 11, 2026
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CHI Chicago
LAX Los Angeles
From $190.87
Jan 12, 2026 - Jan 17, 2026
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CMH Columbus
LAX Los Angeles
From $201.99
Feb 26, 2026 - Feb 28, 2026
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BNA Nashville
LAX Los Angeles
From $211.99
Jan 12, 2026 - Jan 15, 2026
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NYC New York City
LAX Los Angeles
From $212.18
Mar 17, 2026 - Mar 24, 2026
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SMF Sacramento
LAX Los Angeles
From $229.24
May 2, 2026 - May 9, 2026
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WAS Washington DC
LAX Los Angeles
From $232.99
Jan 25, 2026 - Jan 31, 2026
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PHL Philadelphia
LAX Los Angeles
From $239.99
Jan 9, 2026 - Jan 12, 2026
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IND Indianapolis
LAX Los Angeles
From $255.99
Jan 12, 2026 - Jan 15, 2026
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MKC Kansas City
LAX Los Angeles
From $340.99
Feb 18, 2026 - Mar 21, 2026
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OMA Omaha
LAX Los Angeles
From $387.99
Mar 12, 2026 - Mar 19, 2026
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*All fares above were last found on:
Fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions. 202512~Ref:PLX3B3QqukKLNMXCuaPx1A

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Ontario International Airport Flight Facts

Q. How far in advance do most travelers book their flights to ONT, Ontario?

A. Most travelers made their bookings 1 weeks in advance of their departure.

Q. What are the busiest hours at Ontario International Airport?

A. The busiest hours at ONT are 12:00PM - 1:00PM

Q. How many domestic and international flights depart from ONT every week?

A. Each week, at least 327 domestic flights and 39 international flights depart from Ontario International Airport

Q. How many flights arrive at ONT each week?

A. A total of 368 flights arrive at Ontario International Airport each week

Q. How many nonstop flights arrive at ONT each week?

A. Ontario International Airport receives 366 nonstop flights each week.

Q. What time does the first flight to ONT typically depart?

A. The first flight to ONT departs around 6:00AM - 7:00AM

Q. When does the last flight to ONT depart?

A. The last flight to Ontario International Airport departs around 11:00PM - 12:00AM

Q. Which month had the most bookings to ONT, Ontario?

A. The month of August saw the most bookings for Ontario International Airport

Q. Which month had the least bookings for ONT Airport?

A. The month of April had the fewest bookings for Ontario International Airport.

Q. Which destinations were the most popular among First-Class travelers from ONT, Ontario

A. DEN, GDL, DFW was the most popular destination visited by First-Class travelers from Ontario International Airport.

Q. What is the booking ratio by class at ONT Airport?

A. 3 travelers at Ontario International Airport booked either First or Business Class.

Q. What was the average stay of passengers in Ontario?

A. Travelers spent an average of 8 days in Ontario.

Q. What percentage of travelers at Ontario were over the age of 35?

A. 57% of travelers at Ontario were over the age of 35.

Q. How many travelers at ONT were over the age of 60?

A. 19% of travelers were over the age of 60 at Ontario.

Q. What proportion of travelers at ONT traveled with minors?

A. 5% of travelers at Ontario traveled with children under the age of 14.

Q. How many ONT travelers belong to the millennial age group?

A. 33% of travelers at ONT were millennials.

Q. What percentage of travelers at ONT were female?

A. 51% of the total travelers were female at Ontario.

§ All flight facts are based on last 3 months' data except the highest and lowest booking months that are based on last 3 months' data.