App
Customer Support
IDR
Find Bookings
Trip.com
>
Cheap Flights
>
United States
>
Sidney
>
Flights from Ontario to Sidney
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

Flights from Ontario to Sidney Starting at IDR 3,261,275

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • ONT11:29
        20h 29m
        2 stops
        SDY08:58
        Tue, Nov 19|Ontario - Sidney|Alaska Airlines
        IDR 3,261,275IDR 5,540,918
        41% OFF
        41% OFF
        IDR 5,540,918IDR 3,261,275

        Choose Alaska Airlines flights from Ontario to Sidney. The one-way connecting flight with Alaska Airlines departs from Ontario International Airport on Tue, Nov 19, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,261,275 including taxes and charges.

      • ONT13:42
        23h 12m
        2 stops
        SDY13:54
        Tue, Nov 19|Ontario - Sidney|United Airlines
        IDR 3,272,248IDR 5,540,918
        41% OFF
        41% OFF
        IDR 5,540,918IDR 3,272,248

        Choose United Airlines flights from Ontario to Sidney. The one-way connecting flight with United Airlines departs from Ontario International Airport on Tue, Nov 19, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,272,248 including taxes and charges.

      • ONT06:00
        6h 54m
        2 stops
        SDY13:54
        Thu, Dec 5|Ontario - Sidney|Delta Air Lines
        IDR 3,353,451IDR 5,540,918
        39% OFF
        39% OFF
        IDR 5,540,918IDR 3,353,451

        Choose Delta Air Lines flights from Ontario to Sidney. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Thu, Dec 5, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,353,451 including taxes and charges.

      • ONT06:00
        6h 54m
        2 stops
        SDY13:54
        Thu, Jan 9|Ontario - Sidney|Delta Air Lines
        IDR 3,452,211
        IDR 3,452,211

        Choose Delta Air Lines flights from Ontario to Sidney. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Thu, Jan 9, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,452,211 including taxes and charges.

      • ONT06:00
        6h 54m
        2 stops
        SDY13:54
        Thu, Dec 12|Ontario - Sidney|Delta Air Lines
        IDR 3,500,494
        IDR 3,500,494

        Choose Delta Air Lines flights from Ontario to Sidney. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Thu, Dec 12, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,500,494 including taxes and charges.

      • ONT05:10
        10h 38m
        2 stops
        SDY16:48
        Thu, Jan 9|Ontario - Sidney|United Airlines
        IDR 3,539,998
        IDR 3,539,998

        Choose United Airlines flights from Ontario to Sidney. The one-way connecting flight with United Airlines departs from Ontario International Airport on Thu, Jan 9, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,539,998 including taxes and charges.

      • ONT13:40
        18h 18m
        2 stops
        SDY08:58
        Thu, Dec 5|Ontario - Sidney|United Airlines
        IDR 3,601,448
        IDR 3,601,448

        Choose United Airlines flights from Ontario to Sidney. The one-way connecting flight with United Airlines departs from Ontario International Airport on Thu, Dec 5, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,601,448 including taxes and charges.

      • ONT16:06
        15h 52m
        2 stops
        SDY08:58
        Thu, Jan 9|Ontario - Sidney|Alaska Airlines
        IDR 3,665,094
        IDR 3,665,094

        Choose Alaska Airlines flights from Ontario to Sidney. The one-way connecting flight with Alaska Airlines departs from Ontario International Airport on Thu, Jan 9, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,665,094 including taxes and charges.

      • ONT07:00
        11h 40m
        2 stops
        SDY19:40
        Thu, Dec 12|Ontario - Sidney|Alaska Airlines
        IDR 3,820,915
        IDR 3,820,915

        Choose Alaska Airlines flights from Ontario to Sidney. The one-way connecting flight with Alaska Airlines departs from Ontario International Airport on Thu, Dec 12, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,820,915 including taxes and charges.

      • ONT07:00
        8h 48m
        2 stops
        SDY16:48
        Mon, Dec 9|Ontario - Sidney|Alaska Airlines
        IDR 3,825,305
        IDR 3,825,305

        Choose Alaska Airlines flights from Ontario to Sidney. The one-way connecting flight with Alaska Airlines departs from Ontario International Airport on Mon, Dec 9, arriving at Sidney-Richland Municipal Airport. One-way Prices start from IDR 3,825,305 including taxes and charges.

      • ONT13:00
        3h 5m
        Nonstop
        SDY14:00
        Fri, Nov 22|Ontario - Sidney|Alaska Airlines
        Find More Flights
        Find More Flights

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

Find the best time to fly from Ontario to Sidney

We monitor flight fares to help you find the best deals effortlessly

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

Airlines Flying from Ontario to Sidney

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Alaska Airlines
From IDR 3,261,275
United Airlines
From IDR 3,272,248
Delta Air Lines
From IDR 3,353,451
American Airlines
From IDR 4,968,726
Frontier Airlines
From IDR 9,869,417

Find more flights and airlines

Alternative Routes from Ontario to Sidney

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Ontario to Sidney.

  • Cheapest
    Alaska Airlines
    ONT
    11:29
    20h 29m
    2 transfer
    SDY
    08:58
    Ontario International Airport - Sidney-Richland Municipal Airport
    Tue, Nov 19Alaska Airlines
    IDR 3,261,275
  • Alaska Airlines
    ONT
    11:29
    20h 29m
    2 transfer
    SDY
    08:58
    Ontario International Airport - Sidney-Richland Municipal Airport
    Tue, Nov 19Alaska Airlines
    IDR 3,261,275
    Find More Flights

FAQ

  • When are flight tickets from Ontario (ONT) to Sidney (SDY) the cheapest?

    Airlines adjust prices for flights from Ontario to Sidney based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Ontario (ONT) to Sidney (SDY) cost?

    According to Trip.com's data, the lowest price is around IDR 7,729,617.

How to find a cheap flight from Ontario to Sidney

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Ontario to Sidney. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Ontario to Sidney

Flight distance11,063.83 km
Popular airlineAmerican Airlines

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2024 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.