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Waterloo

$324+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ALO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$324
(American Airlines)
From Washington, D.C. (WAS) to Waterloo
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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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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 10/46:14 amBWI - ALO
2 stops11h 15mAmerican Airlines
Tue 10/76:00 amALO - BWI
1 stop4h 20mAmerican Airlines
Deal found 7/30$324
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 10/46:45 amDCA - ALO
2 stops16h 20mAmerican Airlines
Tue 10/76:00 amALO - DCA
2 stops14h 10mAmerican Airlines
Deal found 7/29$498
This American Airlines deal was found by Cheapflights users on 7/30. 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 12/62:04 pmIAD - ALO
2 stops8h 57mAmerican Airlines
Wed 12/102:51 pmALO - IAD
2 stops8h 04mAmerican Airlines
Deal found 7/30$529

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 July 31, 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

Sat 10/4

6:14 am-4:29 pm

2 stops11h 15m

Waterloo

Tue 10/7

6:00 am-11:20 am

1 stop4h 20m

$324

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Sat 10/4

6:45 am-10:05 pm

2 stops16h 20m

Waterloo

Tue 10/7

6:00 am-9:10 pm

2 stops14h 10m

$498

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 12/6

2:04 pm-10:01 pm

2 stops8h 57m

Waterloo

Wed 12/10

2:51 pm-11:55 pm

2 stops8h 04m

$529

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Thu 8/28

1:18 pm-11:37 pm

2 stops11h 19m

$481

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Waterloo

Get insights into the airlines that provide service to Waterloo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Waterloo. Reviews last updated July 31, 2025.
Peruse reviews from past customers who have flown with American Airlines from Washington, D.C. to Waterloo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

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. 0 airlines have flights to Waterloo from Washington, D.C. on a regular basis.

  • 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 Washington, D.C. Dulles Intl - Waterloo, Baltimore/Washington - Waterloo and Washington, D.C. Reagan-National - 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.

See more FAQs

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