HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Waterloo

$468+ Cheap flights from Seattle to Waterloo, IA (SEA - ALO)

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ALO
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Waterloo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Waterloo (ALO). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$468
(American Airlines)
Provider with most accurate pricing for Seattle/Tacoma Intl-Waterloo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Waterloo flights.
Search Deals
From Seattle/Tacoma Intl to Waterloo
Search Deals

Find flight deals from Seattle to Waterloo

Cheapest flights from Seattle to Waterloo
Explore the most affordable flight options available from Seattle to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This American Airlines deal was found by Cheapflights users on 10/26. 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.
Sat 11/110:39 amSEA - ALO
1 stop9h 18mAmerican Airlines
Sat 12/273:09 pmALO - SEA
1 stop10h 04mAmerican Airlines
Deal found 10/26$540
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 12/1212:38 amSEA - ALO
1 stop12h 18mAmerican Airlines
Mon 12/295:40 amALO - SEA
1 stop10h 22mAmerican Airlines
Deal found 10/26$565

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Waterloo 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 October 28, 2025.
Use the filters below to find and compare flights from Seattle to Waterloo that are best for you.

Fly from

Seattle

Fly to

Waterloo

Route

Depart

Return

Price

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Tue 3/3

1:34 pm-10:01 pm

1 stop6h 27m

Waterloo

Sat 3/7

6:00 am-2:47 pm

2 stops10h 47m

$468

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Fri 12/12

12:38 am-2:56 pm

1 stop12h 18m

Waterloo

Mon 12/29

5:40 am-2:02 pm

1 stop10h 22m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Compare providers for flights from Seattle to Waterloo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Waterloo in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Waterloo, Iowa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Waterloo, Iowa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Waterloo, Iowa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Waterloo, Iowa flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Waterloo, Iowa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Seattle 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 Seattle to Waterloo

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Waterloo, Iowa (average of $118). Flying from Seattle to Waterloo, Iowa in December is currently the most expensive (average of $352). 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 Waterloo

Get insights into the airlines that provide service to Waterloo. 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 Waterloo. Reviews last updated October 28, 2025.
Read reviews from past customers who have flown American Airlines from Seattle to Waterloo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,033 reviews

Comfort

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Boarding

7.5

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
11,033 reviews
American Airlines
7.2
Good
11,033 reviews

Comfort

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Boarding

7.5

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 Seattle to Waterloo. 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 Seattle to Waterloo, Iowa?

    A quick flight from Seattle to Waterloo, Iowa can take about 6h 27m. American Airlines provides one of the quickest options available for as low as $468. Seattle and Waterloo, Iowa are separated by a distance of 1489 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Waterloo 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 Seattle to Waterloo, Iowa?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Waterloo, Iowa (average of $118). Flying from Seattle to Waterloo, Iowa in December is currently the most expensive (average of $352). 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 Waterloo?

Book flights to Waterloo if you plan to visit one of these locations
Cedar Falls

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Waterloo

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Omaha flights
Seattle to Des Moines flights
Portland to Omaha flights
Seattle to Cedar Rapids flights
Portland to Des Moines flights
Portland to Cedar Rapids flights
Seattle to Moline flights
Pasco to Des Moines flights
Portland to Moline flights
Spokane to Cedar Rapids flights
Spokane to Des Moines flights
Spokane to Moline flights
Spokane to Omaha flights
Seattle to La Crosse flights
Seattle to Sioux City flights
Portland to Sioux City flights
Portland to La Crosse flights
Portland to Waterloo flights
Pasco to Omaha flights
Bellingham to Omaha flights
Yakima to Sioux City flights
Pasco to Sioux City flights
Spokane to Sioux City flights
Walla Walla to Sioux City flights
Pullman to Omaha flights
Seattle to Dubuque flights
Spokane to Dubuque flights
Portland to Dubuque flights
Bellingham to La Crosse flights
Bellingham to Des Moines flights
Walla Walla to Moline flights

Top airline flying from Seattle to Waterloo

Discover the top airline that operate flights from Seattle to Waterloo. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$538FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.