Title: Cheap Flights from Seattle (SEA) to Waterloo (ALO) - Expedia.ca ![One of the many lakes within George Wyth State Park, popular for boating and fishing.](https://images.trvl-media.com/place/364/8258d304-b1bb-4d11-b5a8-393ce803cda8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Erik Rowley ![](https://images.trvl-media.com/place/364/8258d304-b1bb-4d11-b5a8-393ce803cda8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Seattle (SEA) to Waterloo (ALO) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Seattle-Tacoma International Airport (SEA) to Waterloo, IA (ALO-Waterloo Regional) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:alo,departure:18/10/2025TANYT&leg2=from:alo,to:sea,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from Seattle to Waterloo (SEA - ALO) route information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Waterloo Regional | | Distance | 2383 km | ## Seattle to Waterloo Flights **The easy way to book your flights from Seattle to Waterloo**  With Expedia, it’s simple to find and book flights to Waterloo from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Waterloo Regional, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Waterloo today, tomorrow, or this week.   **Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Waterloo Regional, ALO**  Sort your search results by price to find great deals on your flight from Seattle to Waterloo—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Waterloo from Seattle currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Waterloo   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Waterloo from Seattle**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Waterloo with Expedia today. ## Frequently asked questions ### How much is a flight from SEA to Waterloo Regional Airport? > Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Sea-Tac Airport to Waterloo Regional Airport start from . Make your booking ASAP to score the best price for your journey. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from SEA to Waterloo Regional Airport (ALO)? > This can differ from airline to airline, as each one has its own terms and conditions. Head to the [Customer Service Portal](https://www.expedia.ca/helpcenter), where there are instructions on how to cancel your flight online. ### How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to ALO that have flexible change policies? > Select our "No change fees" filter to find flexible travel options for your flight from Seattle - Tacoma Intl. Airport (SEA) to ALO. This allows you to snag a great deal in advance and still have the freedom to make changes without any extra fees. Fare adjustments may apply if your new flight is more expensive. ### How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to Waterloo Regional Airport? > There are lots of ways to make the 5 hours and 22 minutes between Seattle - Tacoma Intl. Airport (SEA) and Waterloo Regional Airport (ALO) go by quicker. Be productive and sort through your photos or delete all those unwanted emails. A nice snooze also helps pass the time! ### How far is the flight from Sea-Tac Airport to Waterloo Regional Airport (ALO)? > It's around 2,400 kilometres from SEA to ALO, so you'll be strapped into your seat for a while. Keep yourself entertained with things like a magazine or a good old-fashioned book. ### Which airlines fly direct from Sea-Tac Airport to ALO? > If you want to travel straight from Seattle - Tacoma Intl. Airport (SEA) to ALO, you'll need to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route. ### Are Seattle - Tacoma Intl. Airport (SEA) to ALO flight tickets cheaper when they're purchased at the last minute? > Last-minute planners can occasionally nab a bargain, with some super cheap airfares from Seattle - Tacoma Intl. Airport (SEA) to ALO emerging a few weeks before the date of departure. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as a year in advance in some cases. 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