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Cheap flights from Washington, D.C. Dulles Intl Airport to Waterloo from $519

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Waterloo departing on 5/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Waterloo

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:20 am - 2:32 pm
IAD
-
ALO
9h 12m
2 stops
American Airlines Logo
3:07 pm - 12:13 am
ALO
-
IAD
8h 06m
2 stops
$519American Airlines
Wed, May 27 - Wed, Jun 3
American Airlines Logo
6:25 am - 1:53 pm
IAD
-
ALO
8h 28m
2 stops
American Airlines Logo
2:23 pm - 11:59 pm
ALO
-
IAD
8h 36m
2 stops
$573American Airlines
Sat, May 9 - Wed, May 13

American Airlines flights from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Waterloo, Iowa flight tickets
American Airlines
May 27
IAD6:20 amWashington, D.C. Dulles Intl
9h 12m
2 stops
ALO2:32 pmWaterloo
Jun 3
ALO3:07 pmWaterloo
8h 06m
2 stops
IAD12:13 amWashington, D.C. Dulles Intl
$519
American Airlines
May 9
IAD6:25 amWashington, D.C. Dulles Intl
8h 28m
2 stops
ALO1:53 pmWaterloo
May 13
ALO2:23 pmWaterloo
8h 36m
2 stops
IAD11:59 pmWashington, D.C. Dulles Intl
$573

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa 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, momondo users made 832,500 searches. Data last updated April 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Wed 5/27

6:20 am-2:32 pm

2 stops9h 12m

Waterloo

Wed 6/3

3:07 pm-12:13 am

2 stops8h 06m

$519
Quickest round-trip

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 5/9

6:25 am-1:53 pm

2 stops8h 28m

Waterloo

Wed 5/13

2:23 pm-11:59 pm

2 stops8h 36m

$573

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Waterloo, Iowa (IAD to ALO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa

Fastest flight time

9h 12m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa takes 9h 12m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa.
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Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa

  • How far is Washington, D.C. Dulles Intl to Waterloo by plane?

    A flight from Washington, D.C. Dulles Intl to Waterloo will travel around 815.6 mi. Typically, this will take 9h 12m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Waterloo Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Waterloo Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Waterloo Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Waterloo Airport.

  • What documentation or ID do you need to fly to Waterloo Airport?

    The travel and health documents required for your trip to Waterloo Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Waterloo Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa

  • How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa?

    Price Alerts will notify you by email when the price for flights to Waterloo, Iowa from Washington, D.C. Dulles Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near Waterloo?

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

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Waterloo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Waterloo from Washington, D.C..

Can I find flights from Washington, D.C. to Waterloo with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Waterloo on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Waterloo?

Once all potential Washington, D.C. to Waterloo flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Waterloo right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Waterloo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Waterloo and let you know when they change.

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