SkyTeam airline members China Airlines and Vietnam Airlines have a $657 round trip fare from San Francisco to Taipei TPE flight on China Airlines with Vietnam Airlines segment from Taipei to Ho Chi Minh City SGN (Saigon).
Flight departures at this price are available from September 15 through November 2015. Monday to Thursday departures are low $657 fare and many weekend dates have $687 fare. These are Vietnam Airlines fares with China Airlines codeshare flights.
China Airlines San Francisco SFO – TPE Taipei, Taiwan
Vietnam Airlines Taipei TPE – SGN Ho Chi Minh City, Vietnam
$656.50 on Priceline.com
Tuesday, September 15 – Sunday, September 27
These flights are Vietnam Airlines codeshares for China Airlines in booking class economy codes R, T amd U, which are not miles earning for Delta Skymiles. R and T code international flights earn 25% miles in Vietnam Airlines Golden Lotus Plus.