Originally Posted by
Himeno
While the rules state that you can start in either the US or Canada and end in the other (ie, treating both as a single country), you still need to enter the same port as start/end to find the fares.
Full output from YYZ to YYZ in business class on EF
Fares for YYZ to YYZ on 10/19/17 with results per page
Search: Departing YYZ on 10/19/17 for YYZ
Viewing in currency USD
Seaching in Business cabin
Validated Results
Show fares for cabins: Economy Business First
Prem. Economy Prem. First
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Fares 8 items
Fare Basis Airline Booking Class Trip Type Fare Cabin Effective Date Expiration Date Min / Max Stay Adv Purchase Req
CRWSPCL UA Z Round-Trip 7336.36(USD) B 10 / 12M
IRTWSKY4 DL I Round-Trip 7846.09(USD) B 10 / 12M 07
CRWSTAR1 UA Z Round-Trip 8614.27(USD) B 10 / 12M 24
IRTWSKY3 DL I Round-Trip 9218.91(USD) B 10 / 12M 07
CRWSTAR2 UA Z Round-Trip 9810.80(USD) B 10 / 12M 24
IRTWSKY2 DL I Round-Trip 10757.66(USD) B 10 / 12M 07
CRWSTAR3 UA Z Round-Trip 11246.65(USD) B 10 / 12M 24
IRTWSKY1 DL I Round-Trip 12387.34(USD) B 10 / 12M 07