Not all bookings are automatically eligible for an upgrade.  If you booked your flight through a travel agent or a website other than brusselsairlines.com, your booking may, in some cases, not be eligible. Check if your booking is eligible by filling out your booking details in the above login form.

If you want to upgrade a journey with multiple flights, you need to place a bid to upgrade for each flight individually. For example: you can place a bid for your outgoing flight and opt to not bid for your return flight. You can bid different amounts for each flight. If you don't want to upgrade a flight, all you have to do is move the offer slider to the far left to indicate "No Offer" for that flight. Easy!

Note that flights need to be operated by Brussels Airlines to be eligible for an upgrade.

Your bid offer is the amount you're willing to pay, per passenger, in addition to your original ticket cost, to upgrade your specified flight. Each flight has a minimum and maximum assigned bid value. Your bid must lie between these two values. If there are multiple passengers on your booking, your bid applies to all passengers in your booking. It's not possible to split the booking. If your upgrade is accepted, all passengers will be upgraded.

You can place a bid as soon as you have booked your ticket and up to 72 hours prior to your flight's scheduled departure.

Yes, you can modify or cancel your bid up to 72 hours prior to your flight's scheduled departure and as long as your upgrade has not been accepted.  To do so, just click the link in your bidding confirmation email or log in via the above form.

Once you've successfully received an upgrade, upgrades cannot be cancelled nor transferred. If under the terms and conditions applicable to the original ticket, you are entitled to a refund of the price of the original ticket, the amount of the Upgrade will be refunded to the credit card that was used to pay for the Upgrade.  If under the terms and conditions applicable to the original ticket, you are not entitled to a refund of the price of the original ticket, Airline shall not refund you the amount paid for the Upgrade.

If your bid was unsuccessful, you can't place another bid on the same flight anymore.

The benefits you will be entitled to depend on what you bid for and the type of route you’ve booked. Guests upgrading to Business Class are entitled to free lounge access, while passengers upgrading to Premium Economy, Flex (for flights between Europe and Africa) and Economy Flex can enjoy lounge access against a fee of €29. However, the fare rules of your original ticket will continue to apply to your upgraded booking. Also, the baggage allowance of your original ticket will continue to apply to your upgraded flights.