- Cheap flights from Islip (ISP) to Waterloo (ALO) (2026) | Expedia.co.id

A calm lake with a clear reflection of the sky and trees.

Popular airlines from MacArthur Airport (ISP) to Waterloo, IA (ALO-Waterloo Regional)

Be in the know
Get alerts if flight prices drop or rise*
Book smarter
Save up to 55% on select hotels after you book a flight*
Earn twice
Earn your airline miles on top of our rewards
Sign in

Travel information

Origin airport	MacArthur Airport
Destination airport	Waterloo, IA
Distance	1,611 km away

*Available to Expedia members.