United is showing cheap open-jaw flights to Singapore & India from Toronto for only $658 including taxes.
You can replace Delhi with Mumbai for an additional $20.
The flights between Singapore & India is NOT included. Take a look at low-cost carriers such as AirAsia with one way basic fares starting for $132 CAD including taxes.
United fares include 2 checked bags.
Select dates departing in October, November, early-December & early-February
HOW TO SEARCH FOR DATES AND BOOK:
1. Go to Google Flights to search for dates
2. Click on ‘multi city’
3. Search for:
Toronto (YYZ) to Singapore (SIN)
Delhi (DEL) to Toronto (YYZ)
Google Flights Sample Search
— OR —
Toronto (YYZ) to Singapore (SIN)
Mumbai (BOM) to Toronto (YYZ)
Google Flights Sample Search
Example dates:
Oct 1 to 22
Oct 15 to Nov 4
Nov 6 to 20
Nov 26 to Dec 10
Dec 3 to 18
Feb 4 to 13
NOTE: These are not fixed dates. There are many more combinations available.
4. Google Flights will give you the option to book directly with United
Screenshot from United

When Does This Deal Expire?
Next Departure finds flash sales, unadvertised deals, and mistake fares that saves you at least 40% from average prices. These deals are often available for a limited time. We strongly advise you to book immediately.