Passengers who have already made reservations on Singapore Airlines but want to upgrade to Business Class can easily share the upgrade request online. However, one thing to remember is that the traveller should be required to pay the difference fare, including an additional fee. You should follow the steps to raise the Singapore Airlines Business Class upgrade request online.

• You should go to the Singapore Airlines official website and log in to your account.
• Then tap on the 'Manage Booking' option given on the homepage.
• Enter the booking reference number and the passenger's last name.
• Passengers should select the flight number and click on the Seat upgrade option.
• Scroll the seat map to check availability, and choose your desired seat.
• Now, move to the payment page to pay the difference fare.
• Singapore Airlines will share the upgrade notification on the email address.

How to get a free upgrade to business class Singapore Airlines?

For a free upgrade to business class Singapore Airlines, one should join the Singapore Airline KrisFlyer Loyalty Program, which lets you earn points on every spending on Singapore Airlines Flights. You can redeem these points to get a free upgrade. Otherwise, you can participate in the Singapore Airlines bid upgrade to Premium Economy or Business Class seats, accessible up to 48 hours before the flight departure time. 

1. Go to the Singapore Airlines website and click on Manage Booking.
2. Select the Upgrade Bid option.
3. Fill in the suitable bid amount and click on submit.

Does Singapore Airlines ever upgrade?

Yes, Singapore Airlines offers an upgrade from Premium Economy to Business Class to enjoy premium services during short-haul and long-haul flights. If you have a KrisFlyer Membership, you can redeem the earned miles for a free upgrade, pay the difference in fare to get the seat upgrades,1 or purchase mySQupgrade.