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Waterloo

$363+ Cheap flights from Washington, D.C. (WAS) 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ALO
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from Washington, D.C. to Waterloo

Cheapest flights from Washington, D.C. to Waterloo
Explore the most affordable flight options available from Washington, D.C. to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This American Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 12/17:37 pmBWI - ALO
1 stop5h 11mAmerican Airlines
Mon 12/83:27 pmALO - BWI
1 stop7h 25mAmerican Airlines
Deal found 11/2$363
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/1811:09 amBWI - ALO
2 stops9h 48mAmerican Airlines
Sat 11/226:00 amALO - BWI
2 stops9h 56mAmerican Airlines
Deal found 11/3$401
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Tue 12/237:50 pmDCA - ALO
1 stop4h 55mAmerican Airlines
Sat 12/275:40 amALO - DCA
1 stop4h 16mAmerican Airlines
Deal found 11/2$484
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 12/66:10 amDCA - ALO
2 stops18h 41mAmerican Airlines
Tue 12/96:00 amALO - DCA
2 stops14h 30mAmerican Airlines
Deal found 11/2$486
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/183:25 pmDCA - ALO
1 stop5h 32mAmerican Airlines
Sat 11/226:00 amALO - DCA
2 stops7h 24mAmerican Airlines
Deal found 11/3$508
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/77:19 amBWI - ALO
2 stops8h 39mAmerican Airlines
Mon 11/103:28 pmALO - BWI
1 stop7h 27mAmerican Airlines
Deal found 11/3$518
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 12/66:25 amIAD - ALO
2 stops9h 31mAmerican Airlines
Wed 12/106:00 amALO - IAD
2 stops6h 34mAmerican Airlines
Deal found 11/2$529
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 12/15:42 pmDCA - ALO
1 stop7h 06mAmerican Airlines
Mon 12/86:00 amALO - DCA
2 stops9h 00mAmerican Airlines
Deal found 11/2$571
This American Airlines deal was found by Cheapflights users on 11/3. 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 12/227:59 pmBWI - ALO
1 stop4h 46mAmerican Airlines
Sun 12/285:40 amALO - BWI
1 stop4h 35mAmerican Airlines
Deal found 11/3$598
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/77:59 amIAD - ALO
2 stops7h 59mAmerican Airlines
Mon 11/106:00 amALO - IAD
2 stops6h 35mAmerican Airlines
Deal found 11/3$599
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/1811:25 amIAD - ALO
2 stops9h 32mAmerican Airlines
Sat 11/226:00 amALO - IAD
2 stops9h 02mAmerican Airlines
Deal found 11/3$633
This American Airlines deal was found by Cheapflights users on 11/3. 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 12/226:35 amIAD - ALO
2 stops9h 04mAmerican Airlines
Sun 12/285:40 amALO - IAD
2 stops6h 29mAmerican Airlines
Deal found 11/3$696

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$363
(American Airlines)
Provider with most accurate pricing for Washington, D.C. (WAS)-Waterloo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Waterloo flights.
Search Deals
From Washington, D.C. (WAS) to Waterloo
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Waterloo that are best for you.

Fly from

Washington, D.C.

Fly to

Waterloo

Route

Depart

Return

Price

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Mon 12/1

7:37 pm-11:48 pm

1 stop5h 11m

Waterloo

Mon 12/8

3:27 pm-11:52 pm

1 stop7h 25m

$363

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Tue 12/23

5:41 pm-11:45 pm

1 stop7h 04m

Waterloo

Sat 12/27

5:40 am-10:56 am

1 stop4h 16m

$484

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Sat 12/6

6:10 am-11:51 pm

2 stops18h 41m

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 11/18

3:25 pm-7:57 pm

1 stop5h 32m

Waterloo

Sat 11/22

6:00 am-2:24 pm

2 stops7h 24m

$508

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 12/6

2:06 pm-11:51 pm

2 stops10h 45m

Waterloo

Wed 12/10

3:27 pm-11:08 pm

2 stops6h 41m

$529

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Wed 3/25

6:29 pm-10:01 pm

1 stop4h 32m

Waterloo

Sat 3/28

6:00 am-10:53 am

1 stop3h 53m

$545

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Tue 11/18

11:09 am-7:57 pm

2 stops9h 48m

Waterloo

Sat 11/22

6:00 am-11:17 am

1 stop4h 17m

$570

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Mon 12/22

7:59 pm-11:45 pm

1 stop4h 46m

Waterloo

Sun 12/28

5:40 am-11:15 am

1 stop4h 35m

$598

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Tue 11/18

11:25 am-7:57 pm

2 stops9h 32m

Waterloo

Sat 11/22

6:00 am-4:02 pm

2 stops9h 02m

$633

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Mon 12/22

6:35 am-2:39 pm

2 stops9h 04m

Waterloo

Sun 12/28

5:40 am-1:09 pm

2 stops6h 29m

$696

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 14 results
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  • Most accurate provider: When it comes to deals on Washington, D.C.-Waterloo, Iowa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Waterloo, Iowa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Waterloo, Iowa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Waterloo, Iowa 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 Washington, D.C.-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 Washington, D.C. to Waterloo

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

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Waterloo, Iowa (average of $74). Flying from Washington, D.C. to Waterloo, Iowa in April is currently the most expensive (average of $262). 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 Washington, D.C. 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.?

    For a flight from Washington, D.C. to Waterloo, you will be flying into Waterloo. Waterloo (ALO) is just 5.3 mi from the center of the city. Waterloo is the only Waterloo airport and it handles 0 inbound flights from Washington, D.C. per day. 1 airline has flights to Waterloo from Washington, D.C. on a regular basis.

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

    Departing from Washington, D.C. to Waterloo, Iowa will take you 5h 11m. The distance between Washington, D.C. and Waterloo, Iowa is about 853 mi.

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

    The most popular flight routes from Washington, D.C. to Waterloo, Iowa are Baltimore/Washington - Waterloo, Washington, D.C. Reagan-National - Waterloo and Washington, D.C. Dulles Intl - Waterloo.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Waterloo, Iowa?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Waterloo, Iowa (average of $74). Flying from Washington, D.C. to Waterloo, Iowa in April is currently the most expensive (average of $262). 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

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Top airline flying from Washington, D.C. to Waterloo

Discover the top airline that operate flights from Washington, D.C. to Waterloo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$328Average$398FlexibilityNo cancel feeOn-time71%

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