Only the following US gateway cities could be served non-stop from Heathrow: Baltimore, Boston, Chicago–O'Hare, Detroit, Los Angeles, Miami, New York–JFK, Newark, Anchorage, Minneapolis/St. Paul, Philadelphia, San Francisco, Seattle/Tacoma, and Washington–Dulles. Anchorage and Minneapolis/St. Paul, held dormant authorities to use Heathrow as their London terminal, grandfathered from use during the original Bermuda Agreement; but could only be operated non-stop by a British carrier. As such, Anchorage remained dormant during the latter years of Bermuda II, and Minneapolis featured service only to London Gatwick, as its operating carrier (Northwest Airlines) did not have the authority to operate into Heathrow.