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Waterloo

$478+ Cheap flights from Washington to Waterloo, IA (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
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Washington to Waterloo

Keep the following information in mind while searching for Washington to Waterloo flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(American Airlines)
Provider with most accurate pricing for Seattle/Tacoma Intl-Waterloo flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Waterloo flights.
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From Washington to Waterloo
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Find flight deals from Washington to Waterloo

Cheapest flights from Washington to Waterloo
Explore the most affordable flight options available from Washington to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This American Airlines deal was found by Cheapflights users on 11/3. 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 12/132:46 pmSEA - ALO
1 stop7h 05mAmerican Airlines
Mon 12/293:09 pmALO - SEA
1 stop10h 04mAmerican Airlines
Deal found 11/3$537
This American Airlines deal was found by Cheapflights users on 11/2. 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 11/2212:59 amSEA - ALO
2 stops11h 48mAmerican Airlines
Sun 11/303:17 pmALO - SEA
1 stop10h 01mAmerican Airlines
Deal found 11/2$671

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 November 3, 2025.
Use the filters below to find and compare flights from Washington to Waterloo that are best for you.

Fly from

Washington

Fly to

Waterloo

Route

Depart

Return

Price

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Tue 3/3

1:44 pm-10:20 pm

1 stop6h 36m

Waterloo

Sat 3/7

6:00 am-3:58 pm

2 stops11h 58m

$478

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Sat 12/13

2:46 pm-11:51 pm

1 stop7h 05m

Waterloo

Mon 12/29

3:09 pm-11:13 pm

1 stop10h 04m

$537

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Sat 11/22

12:59 am-2:47 pm

2 stops11h 48m

Waterloo

Sun 11/30

3:17 pm-11:18 pm

1 stop10h 01m

$671

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Washington to Waterloo

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

What is the cheapest month to book a flight from State of Washington to Waterloo, Iowa?

Currently, April is the cheapest month in which you can book a flight from State of Washington to Waterloo, Iowa (average of $113). Flying from State of Washington to Waterloo, Iowa in December is currently the most expensive (average of $293). 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.

Related info for your journey

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

  • What airport do you fly into for flights to Waterloo from Washington?

    Most people fly into Waterloo (ALO) if they book a flight to Waterloo from Washington. Waterloo is conveniently located just 5.3 mi from Waterloo’s city center.

  • How long is the flight from State of Washington to Waterloo, Iowa?

    American Airlines can get you from State of Washington to Waterloo, Iowa in just under 6h 36m. Your travel time can differ by up to . The distance from State of Washington to Waterloo, Iowa is about 1489 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Waterloo, Iowa?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Waterloo, Iowa (average of $113). Flying from State of Washington to Waterloo, Iowa in December is currently the most expensive (average of $293). 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

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Top airline flying from Washington to Waterloo

Discover the top airline that operate flights from Washington 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$538FlexibilityNo cancel feeOn-time71%

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