$345 Cheap flight deals from Seattle (SEA) to Waterloo (ALO)

Airfares from $345 One Way, Round Trip from Seattle to Waterloo

Prices starting at for return flights and $345 for one-way flights to Waterloo were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

More About Flying To Waterloo from Seattle

Frequently asked questions

What is the shortest flight from Seattle to Waterloo?
Traveling from SEA to CID takes at least 4 hours and 10 minutes. Indulge in a wine and watch a flick or two — it's a golden opportunity to just relax.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

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