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Waterloo

$344+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ALO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$344
(American Airlines)
From Washington to Waterloo
Search Deals

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 September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/301:02 pmSEA - ALO
1 stop7h 03mAmerican Airlines
Sat 10/46:00 amALO - SEA
2 stops12h 53mAmerican Airlines
Deal found 9/15$344
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/162:52 pmSEA - ALO
1 stop6h 46mAmerican Airlines
Sun 10/196:00 amALO - SEA
1 stop9h 46mAmerican Airlines
Deal found 9/15$436
This American Airlines deal was found by Cheapflights users on 9/14. 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 11/16:10 amSEA - ALO
1 stop6h 45mAmerican Airlines
Sat 12/273:09 pmALO - SEA
1 stop10h 04mAmerican Airlines
Deal found 9/14$464
This American Airlines deal was found by Cheapflights users on 9/14. 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 9/2711:18 amPDX - ALO
1 stop8h 47mAmerican Airlines
Wed 10/14:59 pmALO - PDX
1 stop8h 55mAmerican Airlines
Deal found 9/14$469
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/92:46 pmSEA - ALO
1 stop7h 02mAmerican Airlines
Sat 11/226:00 amALO - SEA
1 stop9h 54mAmerican Airlines
Deal found 9/15$486
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 12/2312:14 amSEA - ALO
1 stop12h 25mAmerican Airlines
Sun 12/283:09 pmALO - SEA
1 stop20h 53mAmerican Airlines
Deal found 9/16$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 September 16, 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 9/30

1:02 pm-10:05 pm

1 stop7h 03m

Waterloo

Sat 10/4

6:00 am-4:53 pm

2 stops12h 53m

$344

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-12:28 pm

1 stop8h 28m

$394

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Sat 9/27

11:18 am-10:05 pm

1 stop8h 47m

Waterloo

Wed 10/1

4:59 pm-11:54 pm

1 stop8h 55m

$469

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Wed 12/24

11:59 pm-2:39 pm

2 stops12h 40m

$407

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Thu 12/25

11:59 pm-2:39 pm

2 stops12h 40m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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
No data available for this route at this time. Please check back soon.

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 7h 03m. 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.

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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$538FlexibilityNo cancel feeOn-time71%

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