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$394+ Cheap flights from Waterloo, IA to Seattle (ALO - SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — SEA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Waterloo to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Waterloo (ALO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 11, 2025.

Round-trip from

$394
(American Airlines)
From Waterloo to Seattle/Tacoma Intl
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Best flights from Waterloo to Seattle
Discover carefully curated flight deals from Waterloo to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/76:00 amALO - SEA
1 stop8h 28mAmerican Airlines
mar. 3/101:48 pmSEA - ALO
1 stop6h 13mAmerican Airlines
Deal found 9/10$394

Cheapflights Fare Finder

 
Customize your flight search to find flights from Waterloo to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from Waterloo to Seattle that are best for you.

Fly from

Waterloo

Fly to

Seattle

Route

Depart

Return

Price

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

sáb. 3/7

6:00 am-12:28 pm

1 stop8h 28m

Seattle/Tacoma Intl

mar. 3/10

1:48 pm-10:01 pm

1 stop6h 13m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Waterloo to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Waterloo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Waterloo, Iowa to Seattle?

Currently, January is the cheapest month in which you can book a flight from Waterloo, Iowa to Seattle (average of $238). Flying from Waterloo, Iowa to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated septiembre 11, 2025.
Peruse reviews from past customers who have flown with American Airlines from Waterloo to Seattle to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Waterloo to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Waterloo, Iowa to Seattle?

    A quick flight from Waterloo, Iowa to Seattle can take about 8h 28m. American Airlines provides one of the quickest options available for as low as $394. There are 1489 mi between Waterloo, Iowa and Seattle.

  • What is the cheapest airline to fly from Waterloo, Iowa to Seattle round-trip?

    Our cheapest airline available from Waterloo, Iowa to Seattle is American Airlines. Our recent data shows that you can find tickets from as low as $288 on this airline.

  • Can I find deals for flights from Waterloo to Seattle that include hotel bookings?

    Yes. In addition to deals on Waterloo to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Waterloo to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Waterloo to Seattle.

  • Can I find deals for business class flights from Waterloo to Seattle?

    Yes. Cheapflights offers flight deals from Waterloo to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Waterloo, Iowa to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Waterloo, Iowa to Seattle (average of $238). Flying from Waterloo, Iowa to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

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SeaTac
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Alternative routes for Waterloo to Seattle

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Top airline flying from Waterloo to Seattle

Discover the top airline that operate flights from Waterloo to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$422FlexibilityNo cancel feeOn-time71%

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