New York JFK to Tokyo Haneda in Economy

No specific sweet spot is tagged to the Asia economy cabin in our current data, so the math becomes the first constraint to solve: figure out which program prices this route lowest in points, then chase the transfer path that delivers those points most efficiently. For JFK–HND in economy, the dominant options cluster around Star Alliance carriers — particularly All Nippon Airways (ANA) — and oneworld partners like Japan Airlines (JAL), meaning the programs worth modeling first are those with clean access to one or both alliances.

For Star Alliance economy space to Tokyo, Air Canada Aeroplan is typically the first program to search. Aeroplan prices North America–Japan economy at competitive rates, imposes no fuel surcharges on ANA-operated flights, and books directly into ANA's inventory. On the oneworld side, British Airways Avios and American Airlines AAdvantage can access JAL-operated metal on this routing, though Avios pricing on long-haul transpacific can climb depending on the distance band. Search Aeroplan and AAdvantage availability side by side before committing to a transfer path.

Economy saver space on JFK–HND exists, but realistic availability is uneven. Off-peak windows — roughly mid-January through late March, and October through early November — tend to show more release from both ANA and JAL. Summer travel (June–August) and the holiday clusters around Golden Week, Thanksgiving, and New Year's are routinely capacity-constrained, and saver seats disappear quickly or never appear at all on popular departure dates. Build flexibility into your travel dates and search a ±3 to ±5 day window around your target to meaningfully improve your chances of finding releasable inventory.

On transfer paths: the currencies most useful here are Chase Ultimate Rewards, American Express Membership Rewards, and Capital One Miles, all of which transfer to at least one relevant program. Chase UR transfers 1:1 to Aeroplan and to British Airways Avios. Amex Membership Rewards also moves 1:1 to Aeroplan and to ANA Mileage Club directly, which is worth modeling if ANA's own award chart prices the routing attractively. Capital One Miles transfer 1:1 to Avianca LifeMiles, a Star Alliance program that can book ANA flights, sometimes at advantageous rates. Confirm the current transfer ratios in our credit cards section before initiating any transfer, since ratios can change without notice.

The CPP calculus matters here. Using our 2.0¢ valuation for Chase Ultimate Rewards as the baseline, a redemption only clears the bar if the cash price of your ticket divided by the points required exceeds 2.0¢ per point. A JFK–HND economy round-trip in off-peak might be priced at $900–$1,200 cash. If the award costs, say, 60,000–70,000 Aeroplan points round-trip, the implied CPP lands in the 1.3¢–2.0¢ range depending on the specific fare and point total — which can be right at or below our conservative valuation threshold. That doesn't make it a bad redemption if your alternative is paying cash, but it does mean this route in economy rarely produces the outsized CPP you'd see on a premium-cabin redemption or a short-haul sweet spot.

Find space first — then transfer.