What it means
AからBにかけて indicates a range extending from A through B. It is used mainly for time periods or geographical areas, and it often suggests a broad or approximate span rather than clearly fixed endpoints. The event or condition usually continues, develops, or occurs throughout that range.
Usage note
AからBにかけて differs from AからBまで, which more directly marks a definite starting point and ending point. AからBにかけて is especially natural when the range is approximate or when something occurs across an area or period.
How to use it
NounからNounにかけて
春から夏にかけて、北海道では観光客が増えます。
Tourists increase in Hokkaido from spring through summer.
NounからNounにかけて
春から夏にかけて、北海道では観光客が増える。
Tourists increase in Hokkaido from spring through summer.