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Cheap flights from Washington, D.C. to Waterloo from $315

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Waterloo departing on 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. to Waterloo

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:03 am - 2:52 pmBWI  Baltimore/Washington-ALO Waterloo
8h 49m1 stop Chicago O'Hare Intl
American Airlines Logo
5:00 am - 9:59 pmALO  Waterloo-BWI Baltimore/Washington
15h 59m1 stop Chicago O'Hare Intl
$512American Airlines
Wed, Aug 26 - Sat, Aug 29
American Airlines Logo
6:25 pm - 12:22 amBWI  Baltimore/Washington-ALO Waterloo
6h 57m1 stop Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 11:59 pmALO  Waterloo-BWI Baltimore/Washington
7h 36m1 stop Chicago O'Hare Intl
$590American Airlines
Wed, Aug 19 - Sun, Aug 23
American Airlines Logo
6:25 pm - 2:52 pmBWI  Baltimore/Washington-ALO Waterloo
21h 27m1 stop Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 5:54 pmALO  Waterloo-BWI Baltimore/Washington
25h 31m1 stop Chicago O'Hare Intl
$612American Airlines
Thu, Aug 20 - Mon, Aug 24
American Airlines Logo
6:25 pm - 12:22 amBWI  Baltimore/Washington-ALO Waterloo
6h 57m1 stop Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 11:59 pmALO  Waterloo-BWI Baltimore/Washington
7h 36m1 stop Chicago O'Hare Intl
$612American Airlines
Thu, Aug 20 - Sun, Aug 23
American Airlines Logo
8:43 pm - 12:22 amDCA  Washington, D.C. Reagan-National-ALO Waterloo
4h 39m1 stop Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 11:59 pmALO  Waterloo-DCA Washington, D.C. Reagan-National
7h 36m1 stop Chicago O'Hare Intl
$621American Airlines
Wed, Aug 19 - Sun, Aug 23
American Airlines Logo
6:00 am - 12:22 amBWI  Baltimore/Washington-ALO Waterloo
19h 22m2 stops Charlotte Douglas Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 5:54 pmALO  Waterloo-BWI Baltimore/Washington
25h 31m1 stop Chicago O'Hare Intl
$622American Airlines
Thu, Aug 20 - Mon, Aug 24
American Airlines Logo
11:59 am - 12:22 amBWI  Baltimore/Washington-ALO Waterloo
13h 23m2 stops Charlotte Douglas Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 11:09 amALO  Waterloo-BWI Baltimore/Washington
18h 46m2 stops Chicago O'Hare Intl Charlotte Douglas
$627American Airlines
Thu, Aug 20 - Mon, Aug 24
American Airlines Logo
5:35 pm - 12:22 amDCA  Washington, D.C. Reagan-National-ALO Waterloo
7h 47m2 stops Charlotte Douglas Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 11:59 pmALO  Waterloo-DCA Washington, D.C. Reagan-National
7h 36m1 stop Chicago O'Hare Intl
$631American Airlines
Wed, Aug 19 - Sun, Aug 23
American Airlines Logo
5:35 pm - 12:22 amDCA  Washington, D.C. Reagan-National-ALO Waterloo
7h 47m2 stops Charlotte Douglas Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 11:59 pmALO  Waterloo-DCA Washington, D.C. Reagan-National
7h 36m2 stops Chicago O'Hare Intl Charlotte Douglas
$636American Airlines
Wed, Aug 19 - Sun, Aug 23
American Airlines Logo
7:57 am - 2:52 pmIAD  Washington, D.C. Dulles Intl-ALO Waterloo
7h 55m2 stops Charlotte Douglas Chicago O'Hare Intl
American Airlines Logo
3:23 pm - 11:49 pmALO  Waterloo-IAD Washington, D.C. Dulles Intl
7h 26m2 stops Chicago O'Hare Intl Charlotte Douglas
$636American Airlines
Wed, Aug 19 - Sun, Aug 23

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American Airlines flights from Washington, D.C. to Waterloo, Iowa

Our best American Airlines deals on Washington, D.C. to Waterloo, Iowa flight tickets
American Airlines
Aug 19
BWI6:25 pmBaltimore/Washington
6h 57m
1 stop
ALO12:22 amWaterloo
Aug 23
ALO3:23 pmWaterloo
7h 36m
1 stop
BWI11:59 pmBaltimore/Washington
$590
American Airlines
Aug 20
BWI6:25 pmBaltimore/Washington
21h 27m
1 stop
ALO2:52 pmWaterloo
Aug 24
ALO3:23 pmWaterloo
25h 31m
1 stop
BWI5:54 pmBaltimore/Washington
$612
American Airlines
Aug 19
DCA8:43 pmWashington, D.C. Reagan-National
4h 39m
1 stop
ALO12:22 amWaterloo
Aug 23
ALO3:23 pmWaterloo
7h 36m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$621

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Waterloo, Iowa 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, momondo users made 832,500 searches. Data last updated August 9, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Waterloo, Iowa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreWaterloo

BWI Baltimore/Washington - ALO Waterloo

BWIALO

Baltimore/Washington

Wed 8/26

7:03 am-2:52 pm

1 stop8h 49m

Waterloo

Sat 8/29

5:00 am-9:59 pm

1 stop15h 59m

$512

BaltimoreWaterloo

BWI Baltimore/Washington - ALO Waterloo

BWIALO

Baltimore/Washington

Wed 8/19

6:25 pm-12:22 am

1 stop6h 57m

Waterloo

Sun 8/23

3:23 pm-11:59 pm

1 stop7h 36m

$590

BaltimoreWaterloo

BWI Baltimore/Washington - ALO Waterloo

BWIALO

Baltimore/Washington

Thu 8/20

6:25 pm-2:52 pm

1 stop21h 27m

Waterloo

Mon 8/24

3:23 pm-5:54 pm

1 stop25h 31m

$612

BaltimoreWaterloo

BWI Baltimore/Washington - ALO Waterloo

BWIALO

Baltimore/Washington

Thu 8/20

6:25 pm-12:22 am

1 stop6h 57m

Waterloo

Sun 8/23

3:23 pm-11:59 pm

1 stop7h 36m

$612
Quickest round-trip

Washington, D.C.Waterloo

DCA Washington, D.C. Reagan-National - ALO Waterloo

DCAALO

Washington, D.C. Reagan-National

Wed 8/19

8:43 pm-12:22 am

1 stop4h 39m

Waterloo

Sun 8/23

3:23 pm-11:59 pm

1 stop7h 36m

$621

BaltimoreWaterloo

BWI Baltimore/Washington - ALO Waterloo

BWIALO

Baltimore/Washington

Thu 8/20

6:00 am-12:22 am

2 stops19h 22m

Waterloo

Mon 8/24

3:23 pm-5:54 pm

1 stop25h 31m

$622

BaltimoreWaterloo

BWI Baltimore/Washington - ALO Waterloo

BWIALO

Baltimore/Washington

Thu 8/20

11:59 am-12:22 am

2 stops13h 23m

Waterloo

Mon 8/24

3:23 pm-11:09 am

2 stops18h 46m

$627

Washington, D.C.Waterloo

DCA Washington, D.C. Reagan-National - ALO Waterloo

DCAALO

Washington, D.C. Reagan-National

Wed 8/19

5:35 pm-12:22 am

2 stops7h 47m

Waterloo

Sun 8/23

3:23 pm-11:59 pm

1 stop7h 36m

$631

Washington, D.C.Waterloo

DCA Washington, D.C. Reagan-National - ALO Waterloo

DCAALO

Washington, D.C. Reagan-National

Wed 8/19

5:35 pm-12:22 am

2 stops7h 47m

Waterloo

Sun 8/23

3:23 pm-11:59 pm

2 stops7h 36m

$636

Washington, D.C.Waterloo

IAD Washington, D.C. Dulles Intl - ALO Waterloo

IADALO

Washington, D.C. Dulles Intl

Wed 8/19

7:57 am-2:52 pm

2 stops7h 55m

Waterloo

Sun 8/23

3:23 pm-11:49 pm

2 stops7h 26m

$636

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Waterloo from

How to get the cheapest flight ticket from Washington, D.C. to Waterloo, Iowa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Washington, D.C. to Waterloo, Iowa flights?

You could potentially save up to 24% on your flight if you consider stops on a Washington, D.C. to Waterloo, Iowa flight.

When to book flights from Washington, D.C. to Waterloo, Iowa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Waterloo, Iowa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Waterloo, Iowa (WAS to ALO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Waterloo, Iowa

Fastest flight time

5h 12m

Direct flights

None
The fastest flight from Washington, D.C. to Waterloo, Iowa takes 5h 12m
There are no direct flights from Washington, D.C. to Waterloo, Iowa. There are no popular flight routes from Washington, D.C. to Waterloo, Iowa.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Waterloo, Iowa

  • How far is Washington, D.C. to Waterloo by plane?

    Washington, D.C. and Waterloo are 837.3 mi apart from one another. By plane, this route typically takes 5h 12m.

  • When did momondo last update prices for flights from Washington, D.C. to Waterloo Airport?

    Prices for flights from Washington, D.C. to Waterloo Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. to Waterloo Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Waterloo Airport.

  • What documentation or ID do you need to fly to Waterloo Airport?

    The necessary travel and health documents for your Waterloo Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Waterloo?

Book flights to Waterloo if you plan to visit one of these locations
Cedar Falls
Iowa Falls

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Waterloo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Waterloo from Washington, D.C..

Can I find flights from Washington, D.C. to Waterloo with flexible booking policies on momondo?

momondo does allow users to show only those flights to Waterloo from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Waterloo?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Waterloo.

I’m not ready to book a flight from Washington, D.C. to Waterloo right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Waterloo, momondo offers a useful price alert feature which will track prices for flights to Waterloo from Washington, D.C. and alert you when they change.

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