# Capital One Miles Transfer Bonus to Japan Airlines Mileage Bank: 30% Bonus Through April 30

_Apr 5 01:19_

Tags: Air France-KLM, Emirates, JAL, Japan Airlines, oneworld, Capital One Miles, JAL Mileage Bank, Japan Airlines Mileage Bank, Bilt, Capital One

Capital One is offering a 30% bonus on transfers to Japan Airlines Mileage Bank from April 1 to April 30, 2026, resulting in an effective ratio of roughly 1:1

> **Check before acting.** This offer was last reported 216 days ago, on April 5, 2026. Registration deadlines and bonus windows close. We do not track whether this one is still live, so check the program's own page before acting on it.

## Summary

Capital One is offering a 30% bonus on transfers of Capital One Miles to Japan Airlines Mileage Bank. The promotion runs from April 1 through April 30, 2026. Normally, Capital One miles transfer to JAL at a 4:3 ratio (1,000 Capital One miles = 750 JAL miles). With the 30% bonus, the effective ratio becomes approximately 1,000:975, which is close to 1:1. This is significant because Capital One is currently the only major US bank transferable points currency to partner with Japan Airlines Mileage Bank. While Bilt Rewards also partners with JAL, it offers a standard 1:1 ratio without needing a bonus. The bonus makes the Capital One transfer more competitive for accessing JAL's award chart, which includes lucrative rates for oneworld partners and select non-oneworld airlines like Emirates and Air France. Note that JAL Mileage Bank restricts redemptions to family members (by blood or marriage)

Sources add:
• LoyaltyLobby: Japan Airlines has launched a promotion to drive passengers to use its Frankfurt route this summer

## Why it matters

Affects 5 airline programs (Air France-KLM, Emirates, JAL...). Card-issuer angle via Bilt, Capital One. Time-limited transfer bonus — confirm rate and end date before transferring.

## What each source adds

- **LoyaltyLobby**: Japan Airlines has launched a promotion to drive passengers to use its Frankfurt route this summer

## Sources cited

- [One Mile at a Time](https://onemileatatime.com/deals/capital-one-japan-airlines-mileage-bank-transfer-bonus) — Transfer Capital One Miles To Japan Airlines Mileage Bank With 30% Bonus
- [LoyaltyLobby](https://loyaltylobby.com/2026/04/04/japan-airlines-mileage-bank-double-miles-frankfurt-route-may-19-august-31-2026?omhide=true) — Japan Airlines Mileage Bank Double Miles Frankfurt Route May 19 – August 31, 2026

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