SEA - ALO

$483 Find Cheap Flights from Seattle to Waterloo

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Waterloo departing on 12/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Waterloo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Waterloo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Waterloo, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$483
American Airlines
Wed 12/31Sun 1/4
SEA - ALO • 1 stop
Cheapest one-way
Multiple Airlines
Thu 12/18
SEA - ALO • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Waterloo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Waterloo (SEA-ALO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Waterloo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Waterloo

Wed, Dec 31 - Sun, Jan 4
American Airlines Logo
11:20 am - 9:56 pm
SEA
-
ALO
8h 36m1 stop
American Airlines Logo
3:09 pm - 11:13 pm
ALO
-
SEA
10h 04m1 stop
$483American Airlines
Thu, Jan 1 - Mon, Jan 5
American Airlines Logo
2:52 pm - 11:45 pm
SEA
-
ALO
6h 53m1 stop
American Airlines Logo
5:40 am - 2:54 pm
ALO
-
SEA
11h 14m2 stops
$515American Airlines
Tue, Dec 30 - Sun, Jan 4
American Airlines Logo
12:59 am - 2:39 pm
SEA
-
ALO
11h 40m2 stops
American Airlines Logo
3:09 pm - 11:13 pm
ALO
-
SEA
10h 04m1 stop
$538American Airlines
Thu, Jan 1 - Mon, Jan 5
American Airlines Logo
11:59 pm - 2:39 pm
SEA
-
ALO
12h 40m2 stops
American Airlines Logo
5:40 am - 2:54 pm
ALO
-
SEA
11h 14m2 stops
$606American Airlines
Wed, Dec 31 - Sun, Jan 4
American Airlines Logo
7:07 am - 9:56 pm
SEA
-
ALO
12h 49m2 stops
American Airlines Logo
5:40 am - 2:11 pm
ALO
-
SEA
10h 31m2 stops
$770American Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Waterloo flights

Get data-powered insights and trends into flights from Seattle to Waterloo to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Waterloo?

The average price of all round-trip flights from Seattle to Waterloo clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to Waterloo, look for departures on Thursdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Waterloo, Tuesday is the cheapest day to fly and Saturday is the most expensive.

Find deals

Good to know

Cheapest flight$483
Flight from Seattle to Waterloo

When to book flights from Seattle to Waterloo

Are your dates flexible? Find out the best times to travel from Seattle to Waterloo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Waterloo

  • What is the cheapest flight from Seattle to Waterloo?

    In the last 3 days, the lowest price for a flight from Seattle to Waterloo was $483 for a round-trip ticket.

  • Do I need a passport to fly between Seattle and Waterloo?

    No

  • Which aircraft models fly most regularly from Seattle to Waterloo?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Seattle to Waterloo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Waterloo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Waterloo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Waterloo from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Waterloo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Waterloo with an airline and back to Seattle with another airline. Booking your flights between Seattle and ALO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Waterloo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Waterloo from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Seattle to Waterloo

Information on your arrival and departure airports

Seattle (SEA)
Waterloo (ALO)