# United Airlines Adds Winter Seasonal SFO-Sapporo Service Starting December 2026

_May 14 12:30_

Tags: Air Canada, United Airlines, Canada, Japan, San Francisco, Sapporo, route network, airline, new route

United Airlines will launch a 3x weekly seasonal flight between San Francisco (SFO) and Sapporo (CTS) from December 17, 2026, through March 26, 2027, operating on a Boeing 787-9

## Summary

United Airlines is adding a new winter seasonal route between San Francisco (SFO) and Sapporo (CTS), Japan. The service will operate 3 times weekly during the winter 2026-2027 season, running from December 17, 2026, through March 26, 2027. Schedule:
- UA234: SFO to CTS, departs 10:30 AM, arrives 2:15 PM (+1 day)
- UA235: CTS to SFO, departs 4:15 PM, arrives 8:25 AM Westbound flights operate on Sundays, Wednesdays, and Fridays; eastbound on Mondays, Thursdays, and Saturdays. The 4,796-mile route is United's shortest true transpacific service from the continental US. Aircraft will be a Boeing 787-9 with 251 seats (48 business, 21 premium economy, 188 economy). This follows Air Canada's recent announcement of similar service from Vancouver

## Why it matters

Affects 2 airline programs (Air Canada, United Airlines).

## Sources cited

- [One Mile at a Time](https://onemileatatime.com/news/united-airlines-sapporo-flights) — So Cool: United Airlines Adds Flights To Sapporo, Japan, For The Winter Season!

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