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Cheap flights from Washington, D.C. Dulles Intl Airport to Waterloo from $434

This is the cheapest one-way 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 9/24. 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

American Airlines Logo
6:34 am - 2:55 pmIAD-ALO
9h 21m2 stops
American Airlines Logo
3:25 pm - 11:53 pmALO-IAD
7h 28m2 stops
$460American Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
American Airlines Logo
6:25 am - 2:56 pmIAD-ALO
9h 31m2 stops
American Airlines Logo
6:00 am - 4:59 pmALO-IAD
9h 59m2 stops
$529American Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
American Airlines Logo
11:18 am - 10:05 pmIAD-ALO
11h 47m2 stops
American Airlines Logo
3:38 pm - 10:07 amALO-IAD
17h 29m2 stops
$645American Airlines
Find Deal
Wed, Sep 24 - Mon, Sep 29
American Airlines Logo
12:48 pm - 10:05 pmIAD-ALO
10h 17m2 stops
American Airlines Logo
6:00 am - 6:51 pmALO-IAD
11h 51m3 stops
$648American Airlines
Find Deal
Sat, Sep 20 - Tue, Sep 23
American Airlines Logo
6:34 am - 2:55 pmIAD-ALO
9h 21m2 stops
American Airlines Logo
6:00 am - 7:45 pmALO-IAD
12h 45m3 stops
$656American Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
American Airlines Logo
12:48 pm - 10:05 pmIAD-ALO
10h 17m2 stops
American Airlines Logo
6:00 am - 6:51 pmALO-IAD
11h 51m3 stops
$698American Airlines
Find Deal
Fri, Sep 19 - Tue, Sep 23
American Airlines Logo
2:21 pm - 10:05 pmIAD-ALO
8h 44m2 stops
American Airlines Logo
6:01 am - 6:51 pmALO-IAD
11h 50m3 stops
$701American Airlines
Find Deal
Wed, Sep 24 - Mon, Sep 29
American Airlines Logo
11:18 am - 10:05 pmIAD-ALO
11h 47m3 stops
American Airlines Logo
6:01 am - 6:51 pmALO-IAD
11h 50m3 stops
$703American Airlines
Find Deal
Wed, Sep 24 - Mon, Sep 29
American Airlines Logo
11:18 am - 10:05 pmIAD-ALO
11h 47m2 stops
American Airlines Logo
6:00 am - 6:51 pmALO-IAD
11h 51m2 stops
$730American Airlines
Find Deal
Fri, Sep 19 - Tue, Sep 23
American Airlines Logo
11:18 am - 10:05 pmIAD-ALO
11h 47m2 stops
American Airlines Logo
3:38 pm - 10:07 amALO-IAD
17h 29m2 stops
$773American Airlines
Find Deal
Fri, Sep 19 - Mon, Sep 22

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
Oct 11
IAD6:34 amWashington, D.C. Dulles Intl
9h 21m
2 stops
ALO2:55 pmWaterloo
Oct 18
ALO3:25 pmWaterloo
7h 28m
2 stops
IAD11:53 pmWashington, D.C. Dulles Intl
$460
Find similar
American Airlines
Dec 6
IAD6:25 amWashington, D.C. Dulles Intl
9h 31m
2 stops
ALO2:56 pmWaterloo
Dec 10
ALO6:00 amWaterloo
9h 59m
2 stops
IAD4:59 pmWashington, D.C. Dulles Intl
$529
Find similar
American Airlines
Sep 24
IAD11:18 amWashington, D.C. Dulles Intl
11h 47m
2 stops
ALO10:05 pmWaterloo
Sep 29
ALO3:38 pmWaterloo
17h 29m
2 stops
IAD10:07 amWashington, D.C. Dulles Intl
$645
Find similar

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 September 8, 2025.
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

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 10/11

6:34 am-2:55 pm

2 stops9h 21m

Waterloo

Sat 10/18

3:25 pm-11:53 pm

2 stops7h 28m

$460

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 12/6

6:25 am-2:56 pm

2 stops9h 31m

Waterloo

Wed 12/10

6:00 am-4:59 pm

2 stops9h 59m

$529

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Wed 9/24

11:18 am-10:05 pm

2 stops11h 47m

Waterloo

Mon 9/29

3:38 pm-10:07 am

2 stops17h 29m

$645

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 9/20

12:48 pm-10:05 pm

2 stops10h 17m

Waterloo

Tue 9/23

6:00 am-6:51 pm

3 stops11h 51m

$648

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Sat 10/11

6:34 am-2:55 pm

2 stops9h 21m

Waterloo

Sat 10/18

6:00 am-7:45 pm

3 stops12h 45m

$656

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Fri 9/19

12:48 pm-10:05 pm

2 stops10h 17m

Waterloo

Tue 9/23

6:00 am-6:51 pm

3 stops11h 51m

$698

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Wed 9/24

2:21 pm-10:05 pm

2 stops8h 44m

Waterloo

Mon 9/29

6:01 am-6:51 pm

3 stops11h 50m

$701

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Wed 9/24

11:18 am-10:05 pm

3 stops11h 47m

Waterloo

Mon 9/29

6:01 am-6:51 pm

3 stops11h 50m

$703

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Fri 9/19

11:18 am-10:05 pm

2 stops11h 47m

Waterloo

Tue 9/23

6:00 am-6:51 pm

2 stops11h 51m

$730

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Fri 9/19

11:18 am-10:05 pm

2 stops11h 47m

Waterloo

Mon 9/22

3:38 pm-10:07 am

2 stops17h 29m

$773

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Waterloo from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest time of day to depart on your flight to Waterloo, Iowa?

Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to Waterloo, Iowa flights are usually those with departure times in the morning. Our users have found flights to Waterloo, Iowa in the morning for as low as $573. Flights at noon are often more expensive with an average ticket price of $580.

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

Direct flights

None
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.
Search flight deals

  • 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 7h 15m 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.

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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