San Francisco to Hong Kong in Economy

The SFO–HKG corridor is one of the most competitive transpacific routes in economy, with Cathay Pacific, United, and several codeshare partners all offering award inventory — but the math, not the marketing, should drive your transfer decision. Because no specific sweet spot has been tagged to Asia Economy in our current data, the honest starting point is to identify which program prices this route most efficiently before moving a single transferable point.

For availability searches, Cathay Pacific flights are best surfaced through Air Canada Aeroplan and British Airways Avios (/programs/avios), both of which partner with Cathay and can see Cathay-operated inventory on the SFO–HKG nonstop. United MileagePlus is worth checking for its own metal as well as Star Alliance partners on this routing. Air France–KLM Flying Blue can price economy awards on partner carriers competitively depending on the calendar month, so it deserves a secondary search. Run all three before committing to any currency.

Economy saver space on SFO–HKG is genuinely available outside peak windows — but "outside peak" is narrower than travelers expect. Cathay Pacific treats Lunar New Year, Golden Week, and the June–August summer block as high-demand periods, and award seats compress sharply during those stretches. Shoulder months — think late January through March (post-LNY), or October–early November — tend to show more consistent saver-level inventory. Even then, availability can be sporadic on specific dates, so flexibility of at least ±3 days materially improves your odds.

On transfer paths: Chase Ultimate Rewards transfers 1:1 to Aeroplan, Avios (via British Airways or Iberia), United MileagePlus, and Air France–KLM Flying Blue — all programs relevant to this route. American Express Membership Rewards moves 1:1 to Aeroplan and Flying Blue, and also 1:1 to British Airways Avios. Capital One miles transfer 1:1 to Avianca LifeMiles, which can price Star Alliance partners on this corridor, making it a less-obvious but sometimes useful path. Citi ThankYou points go 1:1 to Flying Blue and also to Avianca. The key discipline: confirm live award space in your target program before initiating any transfer, since transfers are generally irreversible.

The CPP framing matters here because economy redemptions on long-haul transpacific routes often look impressive in raw miles saved but underwhelm on a per-cent basis once you do the division. Using our conservative 1.8¢ valuation for Aeroplan miles and 1.5¢ for Flying Blue miles, a redemption only beats a cash ticket if the award price (in miles × CPP) is genuinely lower than the best paid fare you can find. If a saver economy award prices at, say, 35,000–40,000 miles one-way and the cash fare is under $550, the math can be tight or even unfavorable against our valuation tables. Conversely, if paid fares are running $900+ during peak season and you lock in a saver rate, the value case strengthens considerably — though that scenario also correlates with the least available award inventory.

Find space first — then transfer.