How to convert Diners Club Points to Japan Airlines JAL Mileage Bank in Japan
Our guide on how to transfer Diners Club Points in to Japan Airlines JAL Mileage Bank. The conversion ratio for converting between these two systems is 1:0.2.
What are the steps to convert between these two programs?
You will have to do multiple conversions from different programs in order to get the best value for your points. Below we'll guide you on the most optimal conversion path!
Step 1: Diners Club Points to dPoint

First, you'll have to transfer your points to dPoint at a ratio of 2,500:1,000. Once your points are in your dPoint account, you can move forward to the next step.
If you don't already have an account with dPoint you can make a new one at dPoint's official website. Ensure that the name on your accounts match as this will ensure the transfer goes through smoothly.
Convert now →Step 2: dPoint to Japan Airlines JAL Mileage Bank

Next, you'll need to convert your points to Japan Airlines JAL Mileage Bank at a ratio of 1,000:500.
The same as previous steps, if you don't already have an account with Japan Airlines JAL Mileage Bank, you'll need to make a new one on their official site.
Is transferring between Diners Club Points and Japan Airlines JAL Mileage Bank a good deal?
How much is Diners Club Points worth?
We estimate that the value of 1 Diners Club Points is roughly 0.50 JPY.
How much is Japan Airlines JAL Mileage Bank worth?
We estimate that the value of 1 Japan Airlines JAL Mileage Bank is roughly 1.70 JPY.
Our verdict: This conversion ratio can be worth it in certain situations.
You'll be converting your Diners Club Points for roughly half the value of Japan Airlines JAL Mileage Bank, so you may or may not come out ahead in the end. We recommend weighing your options and seeing if it's worth transferring beforehand.
Are there any transfer bonuses to Japan Airlines JAL Mileage Bank right now?
There are currently no bonus campaigns for transferring between these two programs.