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Washington, D.C.

$411+ Cheap flights from Waterloo, IA (ALO) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — WAS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/305:40 amALO - BWI
1 stop4h 35mAmerican Airlines
Sat 1/37:59 pmBWI - ALO
1 stop4h 46mAmerican Airlines
Deal found 12/15$585
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/185:50 amALO - DCA
1 stop6h 01mAmerican Airlines
Fri 12/196:26 pmDCA - ALO
1 stop6h 19mAmerican Airlines
Deal found 12/17$1,221

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 December 18, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$585
(American Airlines)

One-way from

$411
(American Airlines)
Provider with most accurate pricing for Waterloo-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Waterloo-Washington, D.C. (WAS) flights.
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From Waterloo to Washington, D.C. (WAS)
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One-way flight from Waterloo to Washington, D.C. (WAS)
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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 December 18, 2025.
Use the filters below to find and compare flights from Waterloo to Washington, D.C. that are best for you.

Fly from

Waterloo

Fly to

Washington, D.C.

Route

Depart

Return

Price

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Tue 12/30

5:40 am-11:15 am

1 stop4h 35m

Baltimore/Washington

Sat 1/3

7:59 pm-11:45 pm

1 stop4h 46m

$585

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Wed 3/18

2:31 pm-10:00 pm

1 stop6h 29m

$411

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Wed 12/24

5:40 am-11:16 am

1 stop4h 36m

$411

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Tue 12/23

5:50 am-5:02 pm

2 stops10h 12m

$416

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Wed 12/24

5:40 am-4:01 pm

2 stops9h 21m

$454

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Mon 12/22

5:50 am-11:16 am

1 stop4h 26m

$481

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Thu 12/25

5:40 am-11:37 am

1 stop4h 57m

$481

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Thu 12/25

5:40 am-1:27 pm

2 stops6h 47m

$501

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Tue 12/23

5:50 am-1:27 pm

2 stops6h 37m

$555

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

  • Most accurate provider: When it comes to deals on Waterloo, Iowa-Washington, D.C. flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Waterloo, Iowa-Washington, D.C. flight deals on Cheapflights vs. Expedia 90-95% 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 Expedia the most. Expedia 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, November is the cheapest month in which you can book a flight from Waterloo, Iowa to Washington, D.C. (average of $181). Flying from Waterloo, Iowa to Washington, D.C. in June is currently the most expensive (average of $259). 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 4h 35m. American Airlines provides one of the quickest options available for as low as $585. 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. Reagan-National or Waterloo - Washington, D.C. Dulles Intl.

  • 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, November is the cheapest month in which you can book a flight from Waterloo, Iowa to Washington, D.C. (average of $181). Flying from Waterloo, Iowa to Washington, D.C. in June is currently the most expensive (average of $259). 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

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