ALO - SEA

$337 Find Cheap Flights from Waterloo to Seattle - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$532
Typical prices: $354-$703
American Airlines
Wed 11/14Sun 11/18
ALO - SEA • 1 stop
Cheapest one-way
$337
Typical prices: $370-$548
American Airlines
Fri 12/7
ALO - SEA • 1 stop
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Booking Insights
Flight Deals

Cheap Flights from Waterloo to Seattle (ALO-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Waterloo to Seattle

Sat, Nov 14 - Wed, Nov 18
American Airlines Logo
6:04 am - 2:20 pmALO  Waterloo-SEA Seattle/Tacoma Intl
10h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
6:14 am - 3:13 pmSEA  Seattle/Tacoma Intl-ALO Waterloo
6h 59m1 stop Chicago O'Hare Intl
$532American Airlines
Wed, Nov 11 - Sun, Nov 15
American Airlines Logo
6:04 am - 2:20 pmALO  Waterloo-SEA Seattle/Tacoma Intl
10h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
3:10 pm - 11:38 pmSEA  Seattle/Tacoma Intl-ALO Waterloo
6h 28m1 stop Chicago O'Hare Intl
$568American Airlines
Thu, Nov 12 - Mon, Nov 16
American Airlines Logo
6:04 am - 2:20 pmALO  Waterloo-SEA Seattle/Tacoma Intl
10h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
3:10 pm - 11:38 pmSEA  Seattle/Tacoma Intl-ALO Waterloo
6h 28m1 stop Chicago O'Hare Intl
$604American Airlines
Sat, Nov 14 - Wed, Nov 18
American Airlines Logo
6:04 am - 4:54 pmALO  Waterloo-SEA Seattle/Tacoma Intl
12h 50m2 stops Chicago O'Hare Intl Dallas/Fort Worth
American Airlines Logo
6:14 am - 3:13 pmSEA  Seattle/Tacoma Intl-ALO Waterloo
6h 59m1 stop Chicago O'Hare Intl
$671American Airlines
Wed, Nov 11 - Sun, Nov 15
American Airlines Logo
6:04 am - 4:54 pmALO  Waterloo-SEA Seattle/Tacoma Intl
12h 50m2 stops Chicago O'Hare Intl Dallas/Fort Worth
American Airlines Logo
3:10 pm - 11:38 pmSEA  Seattle/Tacoma Intl-ALO Waterloo
6h 28m1 stop Chicago O'Hare Intl
$678American Airlines
Thu, Mar 25 - Tue, Mar 30
American Airlines Logo
5:25 am - 8:13 pmALO  Waterloo-SEA Seattle/Tacoma Intl
16h 48m1 stop Chicago O'Hare Intl
American Airlines Logo
10:31 am - 12:29 amSEA  Seattle/Tacoma Intl-ALO Waterloo
11h 58m1 stop Chicago O'Hare Intl
$685American Airlines
Thu, Mar 25 - Tue, Mar 30
American Airlines Logo
5:25 am - 5:08 pmALO  Waterloo-SEA Seattle/Tacoma Intl
13h 43m2 stops Chicago O'Hare Intl Dallas/Fort Worth
American Airlines Logo
3:11 pm - 12:29 amSEA  Seattle/Tacoma Intl-ALO Waterloo
7h 18m1 stop Chicago O'Hare Intl
$686American Airlines
Thu, Nov 12 - Mon, Nov 16
American Airlines Logo
6:04 am - 4:00 pmALO  Waterloo-SEA Seattle/Tacoma Intl
11h 56m2 stops Chicago O'Hare Intl Los Angeles
American Airlines Logo
6:14 am - 3:13 pmSEA  Seattle/Tacoma Intl-ALO Waterloo
6h 59m1 stop Chicago O'Hare Intl
$726American Airlines
Thu, Mar 25 - Tue, Mar 30
American Airlines Logo
5:25 am - 3:41 pmALO  Waterloo-SEA Seattle/Tacoma Intl
12h 16m2 stops Chicago O'Hare Intl Los Angeles
American Airlines Logo
10:23 am - 12:29 amSEA  Seattle/Tacoma Intl-ALO Waterloo
12h 06m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$743American Airlines
Sat, Nov 14 - Wed, Nov 18
American Airlines Logo
6:04 am - 4:00 pmALO  Waterloo-SEA Seattle/Tacoma Intl
11h 56m2 stops Chicago O'Hare Intl Los Angeles
American Airlines Logo
10:27 am - 11:38 pmSEA  Seattle/Tacoma Intl-ALO Waterloo
11h 11m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$758American Airlines
Booking Insights

Price, demand and travel trends for Waterloo to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Waterloo to Seattle?

Round-trip flights from Waterloo to Seattle typically range from $354 to $703. The lowest price found in the past 5 days was $532, on American Airlines.

Key details for Waterloo to Seattle flights

Cheapest flight

$337
One-way flight from Waterloo to Seattle

When to book flights from Waterloo to Seattle

Are your dates flexible? Find out the best times to travel from Waterloo to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Waterloo to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Waterloo to Seattle?

    Only Economy Class is available on flights from Waterloo to Seattle.

  • Do I need a passport to fly from Waterloo to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Waterloo to Seattle flight?

    Round-trip flights from Waterloo to Seattle range from $354 to $703, with an average of $598 over the past 12 months. Anything below $354 counts as a good deal.

  • Have flight prices from Waterloo to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $532 to $791. That means the highest observed fare was about 48% higher than the lowest one.

  • How are flight prices from Waterloo to Seattle looking right now?

    One-way fares from Waterloo to Seattle are currently lower than usual. Average one-way flight prices are about $354, which is 6% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Waterloo to Seattle?

    Flights from Waterloo to Seattle usually depart from Waterloo (ALO) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Waterloo to Seattle pass through?

    Most connecting flights from Waterloo to Seattle pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Waterloo to Seattle?

    Yes. Flexible dates can save you up to 51% on flights from Waterloo to Seattle. Tuesday is the cheapest departure day at $354 round-trip on average, while Thursday is the most expensive at $713, a difference of $359.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Waterloo and Seattle?

    Seattle is 2 hours behind Waterloo (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Waterloo to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Waterloo to Seattle

Complete your trip to Seattle with a hotel stay or car rental