Tokyo in Polaris business + Park Hyatt for ~$50 cash

This is the textbook Cosmopolitan-mode redemption: one transferable-points balance funds two completely different programs, and you outperform any single co-brand card.

The math. ~300K Chase UR transferred (160K to UA, 140K to Hyatt) plus ~$50 in airline taxes buys a trip with retail value north of $9,000. That's roughly 3 cents per UR point — three times the "1 cent baseline" that no-annual-fee cash-back cards return.

Why it works.

• UA Polaris on miles. United's dynamic award pricing made deep saver awards harder to find than it used to be, but they still exist — especially on partners (ANA, Lufthansa, Singapore) and on the 14-day re-release window when paid loads soften. SFO–HND is one of UA's stronger Pacific routes; saver availability appears regularly. The same play works for IAD–HND, ORD–NRT, EWR–NRT.
• Park Hyatt on Hyatt points. Hyatt is widely considered the best-value points currency for premium hotels because Category-based pricing puts a hard ceiling on cost. Park Hyatt Tokyo at 35K/night vs. ~$800/night cash is the kind of redemption that makes the program famous. Category 7 properties (Park Hyatt Tokyo, Park Hyatt Paris-Vendôme, Park Hyatt Sydney) all share this profile.
• One bonus funds both. A single Chase Sapphire Preferred or Reserve welcome bonus (60K–100K UR) covers a meaningful slice of the points needed. Pair with everyday spend on the same card and you can get there in ~6 months.

Watch outs.

• UA saver award space is the constraint. Search early (11 months out), be flexible on dates by ±3 days, and check both directions of travel independently — sometimes outbound is open and return isn't, in which case mix in a partner airline for one leg.
• Hyatt peak pricing kicks in around major holidays and cherry-blossom season. Off-peak dates (mid-January, June, parts of November) drop to 30K/night and stretch your points 17% further.
• Foreign-transaction fees: use a card with none (CSR, Capital One Venture X, most Amex Platinum-tier cards). Skipping the FX fee on a $50 charge saves under $2, but the principle scales when you're paying restaurant bills.

If you don't have UR points yet. The Chase Sapphire Preferred has been on a 60K–100K bonus rotation for the last few years and is the most efficient on-ramp. The Sapphire Reserve pays more long-term but has a higher annual fee — start with the Preferred if this is your first card in the ecosystem.