App
Customer Support
NZD
Find Bookings
Trip.com
>
Flights
>
Flights to United States
>
United Airlines
>
United Airlines Flights to Ontario (ONT)
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system
UA

United Airlines Flights to Ontario

  • One way
  • Round-trip
      • Cheapest nonstop
        SFO04:20 pm
        1h 31m
        Nonstop
        ONT05:51 pm
        United Airlines|San Francisco - Ontario|Tue, Apr 29
        NZD 74NZD 242
        69% OFF
        69% OFF
        NZD 242NZD 74

        Choose United Airlines flights from San Francisco to Ontario. The one-way direct flight with United Airlines departs from San Francisco International Airport on Tue, Apr 29, arriving at Ontario International Airport. One-way Prices start from NZD 74 including taxes and charges.

      • DEN07:25 pm
        2h 27m
        Nonstop
        ONT08:52 pm
        United Airlines|Denver - Ontario|Tue, Mar 4
        NZD 160NZD 242
        34% OFF
        34% OFF
        NZD 242NZD 160

        Choose United Airlines flights from Denver to Ontario. The one-way direct flight with United Airlines departs from Denver International Airport on Tue, Mar 4, arriving at Ontario International Airport. One-way Prices start from NZD 160 including taxes and charges.

      • BUR07:00 am
        26h 34m
        1 stop
        ONT09:34 am
        United Airlines|Burbank - Ontario|Wed, Feb 26
        NZD 134NZD 242
        45% OFF
        45% OFF
        NZD 242NZD 134

        Choose United Airlines flights from Burbank to Ontario. The one-way connecting flight with United Airlines departs from Bob Hope Airport on Wed, Feb 26, arriving at Ontario International Airport. One-way Prices start from NZD 134 including taxes and charges.

      • SNA06:18 pm
        15h 16m
        1 stop
        ONT09:34 am
        United Airlines|Santa Ana - Ontario|Wed, Feb 26
        NZD 141
        NZD 141

        Choose United Airlines flights from Santa Ana to Ontario. The one-way connecting flight with United Airlines departs from John Wayne Airport on Wed, Feb 26, arriving at Ontario International Airport. One-way Prices start from NZD 141 including taxes and charges.

      • SMF10:15 am
        4h 35m
        1 stop
        ONT02:50 pm
        United Airlines|Sacramento - Ontario|Wed, Apr 9
        NZD 154
        NZD 154

        Choose United Airlines flights from Sacramento to Ontario. The one-way connecting flight with United Airlines departs from Sacramento International Airport on Wed, Apr 9, arriving at Ontario International Airport. One-way Prices start from NZD 154 including taxes and charges.

      • CYS06:00 am
        19h 9m
        1 stop
        ONT12:09 am
        United Airlines|Cheyenne - Ontario|Thu, Mar 13
        NZD 165
        NZD 165

        Choose United Airlines flights from Cheyenne to Ontario. The one-way connecting flight with United Airlines departs from Cheyenne Airport on Thu, Mar 13, arriving at Ontario International Airport. One-way Prices start from NZD 165 including taxes and charges.

      • COS07:30 am
        17h 29m
        1 stop
        ONT11:59 pm
        United Airlines|Colorado Springs - Ontario|Tue, Apr 22
        NZD 174
        NZD 174

        Choose United Airlines flights from Colorado Springs to Ontario. The one-way connecting flight with United Airlines departs from Colorado Springs Airport on Tue, Apr 22, arriving at Ontario International Airport. One-way Prices start from NZD 174 including taxes and charges.

      • MEM08:06 am
        8h 21m
        1 stop
        ONT02:27 pm
        United Airlines|Memphis - Ontario|Tue, Apr 1
        NZD 176
        NZD 176

        Choose United Airlines flights from Memphis to Ontario. The one-way connecting flight with United Airlines departs from Memphis International Airport on Tue, Apr 1, arriving at Ontario International Airport. One-way Prices start from NZD 176 including taxes and charges.

      • PDX01:39 pm
        4h 25m
        1 stop
        ONT06:04 pm
        United Airlines|Portland - Ontario|Tue, Mar 18
        NZD 179
        NZD 179

        Choose United Airlines flights from Portland to Ontario. The one-way connecting flight with United Airlines departs from Portland International Airport on Tue, Mar 18, arriving at Ontario International Airport. One-way Prices start from NZD 179 including taxes and charges.

      • SEA05:00 am
        4h 54m
        1 stop
        ONT09:54 am
        United Airlines|Seattle - Ontario|Sun, Mar 9
        NZD 180
        NZD 180

        Choose United Airlines flights from Seattle to Ontario. The one-way connecting flight with United Airlines departs from Seattle-Tacoma International Airport on Sun, Mar 9, arriving at Ontario International Airport. One-way Prices start from NZD 180 including taxes and charges.

      • SHA01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        United Airlines|Shanghai - Ontario|Wed, Feb 26
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly to Ontario with United Airlines?

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

There is 1 airport in Ontario. Find the most suitable United Airlines flights to Ontario.

  • 12517.03 km from downtown Ontario
    Ontario International Airport
    Tickets From
    NZD 74

About United Airlines

Airline Name
United Airlines
Airline Code
UA
Airline Type
Full Service Carrier (FSC)
Airline Alliance
Star Alliance
Popular Countries United Airlines Flies to:
Philippines, United States and Guatemala
Popular United Airlines Arrival Cities
Popular United Airlines Departure Cities
Based on Trip.com Historical Data

United Airlines Flights to Ontario - FAQ

  • Does United Airlines have baggage allowance?

    0-1 pieces of luggage are usually permitted for each economy class passenger traveling with United Airlines (UA). This information can vary depending on your flight, so be sure to check your itinerary.

  • How to get cheap flights to Ontario?

    You can book cheaper flights in the following ways:
    • Search for tickets to a city or airport near Ontario.
    • Look up different airlines that have flights to Ontario.
    • Browse different departure dates from the same month.
    • Filter for different departure times from the same day.
    • Check for discount information on various social media sites.
    • Explore deals and discounts on airline websites.

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.