$421+ Cheap flights from District of Columbia 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.
IAD — ALO
Oct 15 — Oct 221
1 adult, Economy
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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 District of Columbia to Waterloo
Keep the following information in mind while searching for District of Columbia to Waterloo flight deals. Data was last updated September 15, 2025.
Round-trip from | $421 (American Airlines) |
|---|
Find flight deals from District of Columbia to Waterloo
Cheapest flights from District of Columbia to WaterlooExplore the most affordable flight options available from District of Columbia to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.
Explore the most affordable flight options available from District of Columbia 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![American Airlines logo]()
$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![American Airlines logo]()
$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![American Airlines logo]()
$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![American Airlines logo]()
$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![American Airlines logo]()
$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![American Airlines logo]()
$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![American Airlines logo]()
$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![American Airlines logo]()
$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![American Airlines logo]()
$648
Cheapflights Fare Finder
Customize your flight search to find flights from District of Columbia 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 District of Columbia to Waterloo that are best for you.
Fly from
District of Columbia
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
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
Best time to book a flight from District of Columbia to Waterloo
Have a flexible travel schedule? Discover the best time to fly to Waterloo from District of Columbia 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 District of Columbia to Waterloo
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