Does booking through my company portal ruin my points?

Not if you have your frequent flyer number correctly saved in your employee travel profile. The points accrue to your individual account regardless of who pays the invoice.

Is it worth upgrading to Business Class for points?

Yes. Business class fares in Japan earn significantly higher mileage multipliers (often 1.5x to 2x) compared to Economy, which accelerates your elite status qualification.

Booking Business Travel to Japan for Maximum Reward Points

Prioritize direct bookings with airline alliances like Star Alliance or Oneworld to earn both elite status and miles. Use a business credit card that offers at least 3x points on travel categories to stack your rewards beyond what the airline provides.

Choose your primary alliance. Select an airline alliance (Star Alliance with ANA or Oneworld with JAL) and stick to it. Sign up for the airline's frequent flyer program before booking your first flight to ensure your loyalty number is attached to every reservation.
Use an enterprise-grade booking tool. Use your company’s designated travel management tool (like Navan or SAP Concur) if required, but ensure your personal frequent flyer numbers are synced in the profile settings before clicking purchase.
Leverage a business credit card. Always charge business airfare and hotels to a high-earning travel business card (e.g., Amex Business Platinum for 5x points on flights, or Chase Ink Business Preferred for 3x on travel).
Book hotels with loyalty programs. Book directly through chain websites like Marriott Bonvoy or Hilton Honors for Japanese business hotels. Avoid third-party sites like Expedia for business travel, as these often disqualify you from earning hotel points or elite status nights.

Does booking through my company portal ruin my points?: Not if you have your frequent flyer number correctly saved in your employee travel profile. The points accrue to your individual account regardless of who pays the invoice.
Is it worth upgrading to Business Class for points?: Yes. Business class fares in Japan earn significantly higher mileage multipliers (often 1.5x to 2x) compared to Economy, which accelerates your elite status qualification.