HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Waterloo

$449+ Cheap flights from Reagan-National (DCA) 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ALO
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Waterloo 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.

Find flight deals from Reagan-National to Waterloo

Cheapest flights from Reagan-National to Waterloo
Explore the most affordable flight options available from Reagan-National to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This American Airlines deal was found by Cheapflights users on 11/12. 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.
Wed 12/179:41 amDCA - ALO
1 stop6h 15mAmerican Airlines
Tue 12/305:40 amALO - DCA
1 stop6h 11mAmerican Airlines
Deal found 11/12$449
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/61:03 pmDCA - ALO
2 stops11h 48mAmerican Airlines
Tue 12/96:00 amALO - DCA
2 stops27h 02mAmerican Airlines
Deal found 11/12$486
This American Airlines deal was found by Cheapflights users on 11/10. 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 12/237:50 pmDCA - ALO
1 stop4h 55mAmerican Airlines
Sat 12/275:40 amALO - DCA
1 stop4h 16mAmerican Airlines
Deal found 11/10$530
This American Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 11/282:59 pmDCA - ALO
2 stops9h 49mAmerican Airlines
Tue 12/23:20 pmALO - DCA
1 stop6h 40mAmerican Airlines
Deal found 11/13$561

Cheap flight deals from Reagan-National to Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Waterloo (ALO). 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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$449
(American Airlines)

One-way from

$449
(American Airlines)
Provider with most accurate pricing for Washington, D.C. Reagan-National-Waterloo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Waterloo flights.
Search Deals
From Washington, D.C. Reagan-National to Waterloo
Search Deals
One-way flight from Washington, D.C. Reagan-National to Waterloo
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 November 13, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Waterloo that are best for you.

Fly from

Reagan-National

Fly to

Waterloo

Route

Depart

Return

Price

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Wed 12/17

9:41 am-2:56 pm

1 stop6h 15m

Waterloo

Tue 12/30

5:40 am-12:51 pm

1 stop6h 11m

$449

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Sat 12/6

1:03 pm-11:51 pm

2 stops11h 48m

Waterloo

Tue 12/9

6:00 am-9:30 pm

2 stops14h 30m

$486

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Tue 12/23

7:50 pm-11:45 pm

1 stop4h 55m

Waterloo

Sat 12/27

5:40 am-10:56 am

1 stop4h 16m

$530

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Fri 11/28

2:59 pm-11:48 pm

2 stops9h 49m

Waterloo

Tue 12/2

6:00 am-2:23 pm

2 stops7h 23m

$566

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Wed 3/25

9:21 am-2:20 pm

1 stop5h 59m

$449

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Fri 11/21

9:45 am-2:47 pm

1 stop6h 02m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Waterloo, Iowa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Waterloo, Iowa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Waterloo, Iowa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Waterloo, Iowa flights, Cheapflights users trust eDreams the most. eDreams 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 Washington, D.C. Reagan-National Airport-Waterloo, Iowa 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 Reagan-National to Waterloo

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

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Waterloo, Iowa (average of $214). Flying from Washington, D.C. Reagan-National Airport to Waterloo, Iowa in November is currently the most expensive (average of $357). 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 Reagan-National to Waterloo. 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 into for flights to Waterloo from Washington, D.C. Reagan-National?

    Most people fly into Waterloo (ALO) if they book a flight to Waterloo from Washington, D.C. Reagan-National. On average, Waterloo has 0 inbound flights from Washington, D.C. Reagan-National per day from 0 airlines. Waterloo is conveniently located just 5.3 mi from Waterloo’s city center.

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

    For as low as $449, American Airlines can have you in Waterloo, Iowa from Washington, D.C. Reagan-National Airport in 6h 15m. Washington, D.C. Reagan-National Airport and Waterloo, Iowa are separated by a distance of 842 mi.

  • Can I find deals for flights from Reagan-National to Waterloo that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Waterloo?

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

  • Can I find deals for business class flights from Reagan-National to Waterloo?

    Yes. Cheapflights offers flight deals from Reagan-National to Waterloo 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 Washington, D.C. Reagan-National Airport to Waterloo, Iowa?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Waterloo, Iowa (average of $214). Flying from Washington, D.C. Reagan-National Airport to Waterloo, Iowa in November is currently the most expensive (average of $357). 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 Waterloo?

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

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.

Alternative routes for Reagan-National to Waterloo

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Omaha flights
Dulles Intl to Omaha flights
Baltimore to Omaha flights
Reagan-National to Cedar Rapids flights
Baltimore to Cedar Rapids flights
Dulles Intl to Cedar Rapids flights
Reagan-National to Des Moines flights
Dulles Intl to Des Moines flights
Baltimore to Des Moines flights
Dulles Intl to Moline flights
Reagan-National to Moline flights
Baltimore to Moline flights
Baltimore to La Crosse flights
Dulles Intl to La Crosse flights
Reagan-National to La Crosse flights
Dulles Intl to Waterloo flights
Baltimore to Waterloo flights
Dulles Intl to Dubuque flights
Baltimore to Sioux City flights
Reagan-National to Sioux City flights
Dulles Intl to Sioux City flights
Baltimore to Kirksville flights
Reagan-National to Dubuque flights
Baltimore to Burlington flights
Dulles Intl to Kirksville flights
Baltimore to Dubuque flights

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.