HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$277+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — WAS
Aug 1 — Aug 81
Sat 8/1
Sat 8/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Waterloo to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 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 July 2, 2026.

This American Airlines deal was found by Cheapflights users on 7/1. 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 10/75:00 am
ALO
-
BWI
1 stop18h 16m
American Airlines
Mon 10/127:17 am
BWI
-
ALO
1 stop17h 42m
American Airlines
Deal found 7/1$495
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Sun 7/263:25 pm
ALO
-
DCA
1 stop16h 50m
American Airlines
Sun 8/28:31 am
DCA
-
ALO
1 stop16h 58m
American Airlines
Deal found 6/27$520
This American Airlines deal was found by Cheapflights users on 6/28. 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 7/145:06 am
ALO
-
DCA
1 stop6h 38m
American Airlines
Sat 7/188:06 pm
DCA
-
ALO
1 stop5h 16m
American Airlines
Deal found 6/28$558
This American Airlines deal was found by Cheapflights users on 6/28. 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 7/145:06 am
ALO
-
BWI
1 stop13h 37m
American Airlines
Sat 7/1810:31 am
BWI
-
ALO
1 stop14h 51m
American Airlines
Deal found 6/28$569
This American Airlines deal was found by Cheapflights users on 7/2. 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 7/173:26 pm
ALO
-
BWI
1 stop17h 35m
American Airlines
Tue 7/2110:28 am
BWI
-
ALO
1 stop15h 01m
American Airlines
Deal found 7/2$574
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Sun 7/263:25 pm
ALO
-
IAD
2 stops20h 13m
American Airlines
Sun 8/25:03 am
IAD
-
ALO
2 stops10h 50m
American Airlines
Deal found 6/27$590
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Sat 7/185:06 am
ALO
-
DCA
1 stop4h 53m
American Airlines
Mon 7/208:06 pm
DCA
-
ALO
1 stop5h 23m
American Airlines
Deal found 6/27$611
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Fri 7/173:26 pm
ALO
-
DCA
1 stop4h 33m
American Airlines
Mon 7/208:06 pm
DCA
-
ALO
1 stop5h 23m
American Airlines
Deal found 6/27$664
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Fri 7/173:26 pm
ALO
-
IAD
2 stops7h 44m
American Airlines
Mon 7/206:33 am
IAD
-
ALO
2 stops9h 20m
American Airlines
Deal found 6/27$679
This American Airlines deal was found by Cheapflights users on 6/28. 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 6/293:00 pm
ALO
-
BWI
1 stop17h 57m
American Airlines
Sat 7/117:59 pm
BWI
-
ALO
1 stop19h 54m
American Airlines
Deal found 6/28$719

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 July 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$495
(American Airlines)

One-way from

$277
(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
One-way flight 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 July 2, 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

Wed 10/7

5:00 am-12:16 am

1 stop18h 16m

Baltimore/Washington

Mon 10/12

7:17 am-11:59 pm

1 stop17h 42m

$495

WaterlooWashington, D.C.

ALO - DCA

ALODCA

Waterloo

Tue 7/14

5:06 am-12:44 pm

1 stop6h 38m

Washington, D.C. Reagan-National

Sat 7/18

8:06 pm-12:22 am

1 stop5h 16m

$558

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Tue 7/14

5:06 am-7:43 pm

1 stop13h 37m

Baltimore/Washington

Sat 7/18

10:31 am-12:22 am

1 stop14h 51m

$569

WaterlooBaltimore

ALO - BWI

ALOBWI

Waterloo

Fri 7/17

3:26 pm-10:01 am

1 stop17h 35m

Baltimore/Washington

Tue 7/21

10:28 am-12:29 am

1 stop15h 01m

$574

WaterlooWashington, D.C.

ALO - IAD

ALOIAD

Waterloo

Sun 7/26

3:25 pm-12:38 pm

2 stops20h 13m

Washington, D.C. Dulles Intl

Sun 8/2

5:03 am-2:53 pm

2 stops10h 50m

$590

WaterlooWashington, D.C.

ALO - DCA

ALODCA

Waterloo

Sat 7/18

5:06 am-10:59 am

1 stop4h 53m

Washington, D.C. Reagan-National

Mon 7/20

8:06 pm-12:29 am

1 stop5h 23m

$611

WaterlooWashington, D.C.

ALO - DCA

ALODCA

Waterloo

Sat 7/18

5:06 am-10:59 am

1 stop4h 53m

Washington, D.C. Reagan-National

Sun 7/19

6:30 am-2:53 pm

2 stops9h 23m

$621

WaterlooWashington, D.C.

ALO - DCA

ALODCA

Waterloo

Sun 7/26

5:06 am-10:59 am

1 stop4h 53m

Washington, D.C. Reagan-National

Sun 8/2

6:18 am-2:53 pm

2 stops9h 35m

$637

WaterlooWashington, D.C.

ALO - DCA

ALODCA

Waterloo

Fri 7/17

3:26 pm-11:59 pm

1 stop7h 33m

Washington, D.C. Reagan-National

Sun 7/19

10:13 am-2:53 pm

1 stop5h 40m

$664
Quickest round-trip

WaterlooWashington, D.C.

ALO - DCA

ALODCA

Waterloo

Fri 7/17

3:26 pm-8:59 pm

1 stop4h 33m

Washington, D.C. Reagan-National

Mon 7/20

8:06 pm-12:29 am

1 stop5h 23m

$664

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 18 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.
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 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 18h 16m. American Airlines provides one of the quickest options available for as low as $495. 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 - Washington, D.C. Reagan-National. You may also consider Waterloo - Washington, D.C. Dulles Intl or Waterloo - Baltimore/Washington.

  • 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.

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
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Falls Church
Fredericksburg
Hanover
Manassas
Silver Spring
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.