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Did you mean flights from Waterloo to Seattle / Tacoma?
United States
Seattle–Tacoma International Airport
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United States
Waterloo Regional Airport
At present, there are no direct flights from Seattle / Tacoma to Waterloo.
However, there are several flights from SEA to ALO with a stopover.
Select a stopover airport from the list below to see which airlines operate flights from SEA to ALO, and to see what flight schedules are available.
Known for its continental climate, Waterloo features hot, humid summers with temperatures above 30°C (86°F) and cold, snowy winters that often drop below 0°C (32°F). This striking seasonal contrast offers travelers a variety of activities, from summer hiking to winter sports, ensuring year-round appeal.
The best time to visit Waterloo is from March to November, covering spring, summer, and fall. While summer can be hot, it also sees slightly more rainfall than other seasons.

Currently, there is only one airline that covers the full route (with 1 stopover) from Seattle / Tacoma SEA to Waterloo ALO, which is American Airlines.
All other flights from Seattle / Tacoma to Waterloo are operated by a combination of multiple carriers, which are listed below:
Oneworld is the only alliance that covers the full route (with 1 stopover) from Seattle / Tacoma SEA to Waterloo ALO.
You can fly the full journey from SEA to ALO in either Economy or Business Class. Premium Economy and First Class are not available on this route, at least not on the full route with just 1 stopover.
At this moment, it is not possible to cover the full route from Seattle / Tacoma to Waterloo (with 1 stopover) with one specific type of aircraft. All flights from Seattle / Tacoma to Waterloo are operated by a combination of multiple aircraft types.
The distance between Seattle / Tacoma and Waterloo is 1,492 miles (2,400 kilometers).
However, because there are no direct flights between SEA and ALO, the full journey covers a distance of 1,948 miles (3,135 kilometers).
Flights between Seattle / Tacoma and Waterloo take 5 hours and 41 minutes.
Please note that these times refer to the actual flight times, excluding the stopover time in between connecting flights, as this depends on your stopover airport as well as your date(s) of travel.
There is 1 airport in Waterloo: Waterloo Regional Airport (ALO).
Flights between Seattle / Tacoma and Waterloo take 5 hours and 41 minutes.
Note that this excludes the layover time in between connecting flights.
Because there are no direct flights between SEA and ALO, the full journey covers a total distance of 1,948 miles (3,135 kilometers).
American Airlines is the only airline flying the full route from Seattle / Tacoma to Waterloo.
Delta, Alaska and United Airlines operate several connecting flights, but only partly.
Oneworld is currently the only alliance flying from Seattle / Tacoma to Waterloo.
You can fly the full route from Seattle / Tacoma to Waterloo (with 1 stopover) in Economy and Business Class.
There is no specific aircraft type that covers the full route (with 1 stopover) from Seattle / Tacoma to Waterloo at this moment.
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