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Waterloo

$421+ Cheap flights from Reagan-National (DCA) 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ALO
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Reagan-National to Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 September 15, 2025.

Round-trip from

$421
(American Airlines)
From Washington, D.C. Reagan-National to Waterloo
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Find flight deals from Reagan-National to Waterloo

Cheapest flights from Reagan-National to Waterloo
Explore the most affordable flight options available from Reagan-National to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 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.
Sat 10/182:59 pmDCA - ALO
2 stops9h 39mAmerican Airlines
Sun 10/196:00 amALO - DCA
1 stop4h 00mAmerican Airlines
Deal found 9/15$421
This American Airlines deal was found by Cheapflights users on 9/12. 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 10/410:02 amDCA - ALO
2 stops13h 03mAmerican Airlines
Tue 10/76:00 amALO - DCA
2 stops13h 15mAmerican Airlines
Deal found 9/12$440
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.
Fri 11/146:45 amDCA - ALO
2 stops9h 13mAmerican Airlines
Sun 11/163:28 pmALO - DCA
1 stop16h 31mAmerican Airlines
Deal found 9/14$478
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.
Sat 9/205:08 pmDCA - ALO
1 stop5h 57mAmerican Airlines
Sun 9/213:38 pmALO - DCA
1 stop5h 22mAmerican Airlines
Deal found 9/15$506

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 15, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Waterloo that are best for you.

Fly from

Reagan-National

Fly to

Waterloo

Route

Depart

Return

Price

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Sat 10/18

2:59 pm-11:38 pm

2 stops9h 39m

Waterloo

Sun 10/19

6:00 am-11:00 am

1 stop4h 00m

$421

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Sat 10/4

10:02 am-10:05 pm

2 stops13h 03m

Waterloo

Tue 10/7

6:00 am-8:15 pm

2 stops13h 15m

$440

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Fri 11/14

6:45 am-2:58 pm

2 stops9h 13m

Waterloo

Sun 11/16

3:28 pm-8:59 am

1 stop16h 31m

$478

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Fri 10/10

9:59 am-2:55 pm

1 stop5h 56m

Waterloo

Mon 10/13

3:25 pm-11:12 pm

1 stop6h 47m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Reagan-National to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Reagan-National 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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, D.C. Reagan-National?

    Most people fly into Waterloo (ALO) if they book a flight to Waterloo from Washington, D.C. Reagan-National. On average, Waterloo has 0 inbound flights from Washington, D.C. Reagan-National per day from 0 airlines. Waterloo is conveniently located just 5.3 mi from Waterloo’s city center.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Waterloo, Iowa?

    For as low as $421, American Airlines can have you in Waterloo, Iowa from Washington, D.C. Reagan-National Airport in 9h 39m. Washington, D.C. Reagan-National Airport and Waterloo, Iowa are separated by a distance of 842 mi.

  • Can I find deals for flights from Reagan-National to Waterloo that include hotel bookings?

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

  • How can I find direct flights from Reagan-National to Waterloo?

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

  • Can I find deals for business class flights from Reagan-National to Waterloo?

    Yes. Cheapflights offers flight deals from Reagan-National 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?

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Cedar Falls

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