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$361+ Cheap flights from Washington, D.C. (WAS) 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ALO
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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

$361
(American Airlines)
From Washington, D.C. (WAS) to Waterloo
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Find flight deals from Washington, D.C. to Waterloo

Cheapest flights from Washington, D.C. to Waterloo
Explore the most affordable flight options available from Washington, D.C. 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 9/14. 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 10/46:20 pmBWI - ALO
1 stop4h 45mAmerican Airlines
Tue 10/146:00 amALO - BWI
1 stop4h 20mAmerican Airlines
Deal found 9/14$361
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 9/2011:23 amBWI - ALO
1 stop6h 06mAmerican Airlines
Sun 9/213:38 pmALO - BWI
1 stop7h 09mAmerican Airlines
Deal found 9/15$488
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
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 11/147:59 amIAD - ALO
2 stops7h 59mAmerican Airlines
Sun 11/163:28 pmALO - IAD
2 stops7h 31mAmerican Airlines
Deal found 9/14$525
This American Airlines deal was found by Cheapflights users on 9/13. 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 12/62:06 pmIAD - ALO
2 stops10h 45mAmerican Airlines
Tue 12/96:00 amALO - IAD
2 stops6h 34mAmerican Airlines
Deal found 9/13$529
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/186:34 amIAD - ALO
2 stops9h 21mAmerican Airlines
Sun 10/193:25 pmALO - IAD
2 stops7h 28mAmerican Airlines
Deal found 9/13$586
This American Airlines deal was found by Cheapflights users on 9/13. 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 12/231:57 pmIAD - ALO
2 stops10h 48mAmerican Airlines
Sat 12/275:40 amALO - IAD
2 stops6h 47mAmerican Airlines
Deal found 9/13$633
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 9/202:21 pmIAD - ALO
2 stops8h 44mAmerican Airlines
Sun 9/216:01 amALO - IAD
2 stops9h 37mAmerican Airlines
Deal found 9/15$648
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.
Mon 9/2911:23 amBWI - ALO
1 stop4h 45mAmerican Airlines
Fri 10/34:59 pmALO - BWI
1 stop5h 02mAmerican Airlines
Deal found 9/14$921

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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. to Waterloo that are best for you.

Fly from

Washington, D.C.

Fly to

Waterloo

Route

Depart

Return

Price

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Sat 10/4

6:20 pm-10:05 pm

1 stop4h 45m

Waterloo

Tue 10/14

6:00 am-11:20 am

1 stop4h 20m

$361

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

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Fri 11/14

7:59 am-2:58 pm

2 stops7h 59m

Waterloo

Sun 11/16

3:28 pm-11:59 pm

2 stops7h 31m

$525

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 12/6

6:25 am-2:56 pm

2 stops9h 31m

Waterloo

Tue 12/9

6:00 am-1:34 pm

2 stops6h 34m

$529

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

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 10/18

6:34 am-2:55 pm

2 stops9h 21m

Waterloo

Sun 10/19

3:25 pm-11:53 pm

2 stops7h 28m

$586

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Tue 12/23

1:57 pm-11:45 pm

2 stops10h 48m

Waterloo

Sat 12/27

5:40 am-1:27 pm

2 stops6h 47m

$633

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Mon 9/29

11:23 am-3:08 pm

1 stop4h 45m

Waterloo

Fri 10/3

4:59 pm-11:01 pm

1 stop5h 02m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Washington, D.C. to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Washington, D.C. 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, D.C. 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, D.C. 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.?

    For a flight from Washington, D.C. to Waterloo, you will be flying into Waterloo. Waterloo (ALO) is just 5.3 mi from the center of the city. Waterloo is the only Waterloo airport and it handles 0 inbound flights from Washington, D.C. per day. 0 airlines have flights to Waterloo from Washington, D.C. on a regular basis.

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

    Departing from Washington, D.C. to Waterloo, Iowa will take you 4h 45m. The distance between Washington, D.C. and Waterloo, Iowa is about 853 mi.

  • What are the most popular routes from Washington, D.C. to Waterloo, Iowa?

    The most popular flight routes from Washington, D.C. to Waterloo, Iowa are Washington, D.C. Reagan-National - Waterloo, Baltimore/Washington - Waterloo and Washington, D.C. Dulles Intl - Waterloo.

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

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

  • How can I find direct flights from Washington, D.C. to Waterloo?

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

  • Can I find deals for business class flights from Washington, D.C. to Waterloo?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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

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