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Washington, D.C.

$415+ Cheap flights from Waterloo, IA (ALO) to Washington, D.C. (WAS)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — WAS
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Cheap flight deals from Waterloo to Washington, D.C.

Cheapest flights from Waterloo to Washington, D.C.
Explore the most affordable flight options available from Waterloo to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This American Airlines deal was found by Cheapflights users on 3/30. 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 4/282:23 pm
ALO
-
BWI
1 stop8h 33m
American Airlines
Tue 5/55:39 am
BWI
-
ALO
1 stop9h 14m
American Airlines
Deal found 3/30$415
This American Airlines deal was found by Cheapflights users on 3/30. 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 4/285:40 am
ALO
-
IAD
2 stops16h 26m
American Airlines
Tue 5/57:16 am
IAD
-
ALO
2 stops17h 33m
American Airlines
Deal found 3/30$446
This American Airlines deal was found by Cheapflights users on 3/27. 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 5/195:40 am
ALO
-
BWI
1 stop4h 31m
American Airlines
Sat 5/238:00 pm
BWI
-
ALO
1 stop5h 09m
American Airlines
Deal found 3/27$475
This American Airlines deal was found by Cheapflights users on 3/29. 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 5/142:23 pm
ALO
-
BWI
1 stop8h 43m
American Airlines
Thu 5/217:59 pm
BWI
-
ALO
1 stop19h 33m
American Airlines
Deal found 3/29$496
This American Airlines deal was found by Cheapflights users on 3/30. 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 6/65:00 am
ALO
-
BWI
1 stop4h 02m
American Airlines
Thu 6/118:00 pm
BWI
-
ALO
1 stop5h 09m
American Airlines
Deal found 3/30$505
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/135:40 am
ALO
-
BWI
1 stop4h 36m
American Airlines
Sat 5/166:30 pm
BWI
-
ALO
1 stop6h 25m
American Airlines
Deal found 3/30$568
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/135:40 am
ALO
-
IAD
2 stops12h 45m
American Airlines
Sat 5/166:25 am
IAD
-
ALO
2 stops18h 30m
American Airlines
Deal found 3/30$596
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/132:23 pm
ALO
-
IAD
2 stops8h 36m
American Airlines
Sun 5/176:25 am
IAD
-
ALO
2 stops8h 28m
American Airlines
Deal found 3/30$630
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/135:40 am
ALO
-
IAD
2 stops17h 19m
American Airlines
Fri 5/158:11 pm
IAD
-
ALO
2 stops28h 44m
American Airlines
Deal found 3/30$631
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/152:23 pm
ALO
-
DCA
1 stop8h 34m
American Airlines
Sun 4/199:32 am
DCA
-
ALO
1 stop15h 17m
American Airlines
Deal found 3/31$635
This American Airlines deal was found by Cheapflights users on 3/30. 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 5/145:40 am
ALO
-
IAD
2 stops17h 19m
American Airlines
Sun 5/176:25 am
IAD
-
ALO
2 stops8h 28m
American Airlines
Deal found 3/30$637
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/155:40 am
ALO
-
IAD
2 stops8h 07m
American Airlines
Sun 4/196:25 am
IAD
-
ALO
2 stops8h 28m
American Airlines
Deal found 3/31$659

Find flight deals from Waterloo to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Waterloo (ALO) to Washington, D.C. (WAS). 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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$415
(American Airlines)
Provider with most accurate pricing for Waterloo-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Waterloo-Washington, D.C. (WAS) flights.
Search Deals
From Waterloo to Washington, D.C. (WAS)
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Waterloo to Washington, D.C. 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 April 1, 2026.
Use the filters below to find and compare flights from Waterloo to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Tue 4/28

2:23 pm-6:00 pm

1 stop26h 37m

Baltimore/Washington

Tue 5/5

6:00 am-11:49 pm

2 stops18h 49m

$433

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Tue 4/28

5:40 am-11:06 pm

2 stops16h 26m

Washington, D.C. Dulles Intl

Tue 5/5

7:16 am-11:49 pm

2 stops17h 33m

$446

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Thu 5/14

2:23 pm-12:06 am

1 stop8h 43m

Baltimore/Washington

Thu 5/21

7:59 pm-2:32 pm

1 stop19h 33m

$496
Quickest round-trip

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Sat 6/6

5:00 am-1:28 pm

2 stops7h 28m

Baltimore/Washington

Thu 6/11

8:00 pm-12:09 am

1 stop5h 09m

$515

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Thu 5/14

5:40 am-7:25 pm

2 stops12h 45m

Washington, D.C. Dulles Intl

Sat 5/16

3:26 pm-1:53 pm

2 stops23h 27m

$596

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Wed 5/13

5:40 am-7:25 pm

2 stops12h 45m

Washington, D.C. Dulles Intl

Sat 5/16

6:25 am-11:55 pm

2 stops18h 30m

$596

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Tue 5/19

5:40 am-5:53 pm

2 stops11h 13m

Baltimore/Washington

Sat 5/23

8:10 pm-2:32 pm

2 stops19h 22m

$612

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Wed 5/13

2:23 pm-11:59 pm

2 stops8h 36m

Washington, D.C. Dulles Intl

Sun 5/17

6:25 am-1:53 pm

2 stops8h 28m

$630

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Wed 5/13

2:23 pm-11:56 pm

2 stops8h 33m

Baltimore/Washington

Sun 5/17

3:31 pm-11:55 pm

2 stops9h 24m

$630

WaterlooWashington, D.C.

ALO - DCA

ALODCA

Waterloo

Wed 4/15

2:23 pm-11:57 pm

1 stop8h 34m

Washington, D.C. Reagan-National

Sun 4/19

9:32 am-11:49 pm

1 stop15h 17m

$635

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 20 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Waterloo, Iowa-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Waterloo, Iowa-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Waterloo, Iowa-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Waterloo, Iowa-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Waterloo, Iowa-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

What is the cheapest month to book a flight from Waterloo, Iowa to Washington, D.C.?

Currently, July is the cheapest month in which you can book a flight from Waterloo, Iowa to Washington, D.C. (average of $190). Flying from Waterloo, Iowa to Washington, D.C. in February is currently the most expensive (average of $254). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Waterloo to Washington, D.C.. 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 from for flights from Waterloo to Washington, D.C.?

    If you book a flight to Washington, D.C. from Waterloo, you will be flying from Waterloo, which is the city’s only airport. Waterloo (ALO) is located 5.3 mi from the center of Waterloo. There are 0 flights from Waterloo to Washington, D.C. per day from 0 different airlines.

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

    A quick flight from Waterloo, Iowa to Washington, D.C. can take about 8h 33m. American Airlines provides one of the quickest options available for as low as $415. There are 853 mi between Waterloo, Iowa and Washington, D.C..

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

    The most popular route from Waterloo, Iowa to Washington, D.C. is Waterloo - Baltimore/Washington. You may also consider Waterloo - Washington, D.C. Dulles Intl or Waterloo - Washington, D.C. Reagan-National.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Waterloo to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Waterloo, Iowa to Washington, D.C.?

    Currently, July is the cheapest month in which you can book a flight from Waterloo, Iowa to Washington, D.C. (average of $190). Flying from Waterloo, Iowa to Washington, D.C. in February is currently the most expensive (average of $254). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
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Silver Spring
Herndon
Hyattsville
Hanover
Laurel
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