Economical vs. economic

[CESU]

Test No. errors/advan-5 "At the Airport", question 2

If you are about to book a long haul flight to the other side of the world, it's a good idea to check for the most economic route.

(a) about
(b) it's
(c) check
(d) economic

Test No. errors/advan-5 "At the Airport", answer 2

If you are about to book a long haul flight to the other side of the world, it's a good idea to check for the most economical route.

Correct entry: economical
The error was: (d) economic
_________________________

ECONOMICAL

[Mister Micawber]

.
Yes, economical means inexpensive; economic is the adjective for economics, the science (or art).
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber