How long is the flight from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa?

Airlines like American Airlines fly from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa in about 10h 20m. The time it takes to get you to your destination can typically vary by up to . Washington, D.C. Dulles Intl Airport and Waterloo, Iowa are separated by a distance of 819 mi.

In terms of precipitation, rainfall in Waterloo, Iowa ranges from 0.8 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Waterloo, Iowa when rainfall is around 0.8 in.

If weather is an important factor for your trip to Waterloo, Iowa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 19.4 F).

What is the cheapest time of day to fly from IAD to ALO?

When flying from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Waterloo from Washington, D.C. Dulles Intl?

If you book a flight to Waterloo from Washington, D.C. Dulles Intl, you will be flying to Waterloo, which is the city’s only airport. Waterloo (ALO) is located 5.3 mi from the center of Waterloo. There are 0 flights from Washington, D.C. Dulles Intl to Waterloo per day from 0 different airlines.

Can I find deals for flights from Dulles Intl to Waterloo that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Waterloo?

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

Can I find deals for business class flights from Dulles Intl to Waterloo?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$466+ Flights from Washington, D.C. Dulles Intl Airport to Waterloo, IA

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Cheap flight deals from Dulles Intl to Waterloo

Round-trip from	$466 (American Airlines)

From Washington, D.C. Dulles Intl to Waterloo

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Cheapest flights from Dulles Intl to Waterloo
Explore the most affordable flight options available from Dulles Intl to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Wed 10/82:18 pmIAD - ALO

2 stops10h 20mAmerican Airlines

Sat 10/183:25 pmALO - IAD

2 stops7h 28mAmerican Airlines

Deal found 9/11

$466

Sat 12/66:25 amIAD - ALO

2 stops9h 31mAmerican Airlines

Wed 12/106:00 amALO - IAD

2 stops9h 59mAmerican Airlines

Deal found 9/10

$529

Tue 12/231:57 pmIAD - ALO

2 stops10h 48mAmerican Airlines

Sat 12/273:12 pmALO - IAD

2 stops16h 30mAmerican Airlines

Deal found 9/10

$964

Best flights from Dulles Intl to Waterloo
Discover carefully curated flight deals from Dulles Intl to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Wed 10/82:18 pmIAD - ALO

2 stops10h 20mAmerican Airlines

Sat 10/183:25 pmALO - IAD

2 stops7h 28mAmerican Airlines

Deal found 9/11

$466

Sat 12/66:25 amIAD - ALO

2 stops9h 31mAmerican Airlines

Wed 12/106:00 amALO - IAD

2 stops9h 59mAmerican Airlines

Deal found 9/9

$529

Tue 3/106:50 amIAD - ALO

2 stops8h 30mAmerican Airlines

Wed 3/182:51 pmALO - IAD

2 stops8h 03mAmerican Airlines

Deal found 9/10

$829

Tue 12/231:57 pmIAD - ALO

2 stops10h 48mAmerican Airlines

Sat 12/273:12 pmALO - IAD

2 stops16h 30mAmerican Airlines

Deal found 9/10

$964

Last-minute flights from Dulles Intl to Waterloo
Discover last-minute flight deals from Dulles Intl to Waterloo. Data last updated September 11, 2025 and is based on user searches.

Wed 10/82:18 pmIAD - ALO

2 stops10h 20mAmerican Airlines

Sat 10/183:25 pmALO - IAD

2 stops7h 28mAmerican Airlines

Deal found 9/11

$466

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Waterloo 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

Wed 10/8

2:18 pm-11:38 pm

2 stops10h 20m

Waterloo

Sat 10/18

3:25 pm-11:53 pm

2 stops7h 28m

$466

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

Tue 3/10

6:50 am-2:20 pm

2 stops8h 30m

Waterloo

Wed 3/18

2:51 pm-11:54 pm

2 stops8h 03m

$829

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Tue 12/23

1:57 pm-11:45 pm

2 stops10h 48m

Waterloo

Sat 12/27

3:12 pm-8:42 am

2 stops16h 30m

$964

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Dulles Intl to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Dulles Intl 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.

Related info for your journey

What airport do you fly into for flights to Waterloo from Washington, D.C. Dulles Intl?
If you book a flight to Waterloo from Washington, D.C. Dulles Intl, you will be flying to Waterloo, which is the city’s only airport. Waterloo (ALO) is located 5.3 mi from the center of Waterloo. There are 0 flights from Washington, D.C. Dulles Intl to Waterloo per day from 0 different airlines.
How long is the flight from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa?
Airlines like American Airlines fly from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa in about 10h 20m. The time it takes to get you to your destination can typically vary by up to . Washington, D.C. Dulles Intl Airport and Waterloo, Iowa are separated by a distance of 819 mi.
Can I find deals for flights from Dulles Intl to Waterloo that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Waterloo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Waterloo.
Can I find deals for business class flights from Dulles Intl to Waterloo?
Yes. Cheapflights offers flight deals from Dulles Intl 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.

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$466+ Cheap flights from Dulles Intl (IAD) 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Waterloo with Cheapflights

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Cheap flight deals from Dulles Intl to Waterloo

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Cheapest flights from Dulles Intl to WaterlooExplore the most affordable flight options available from Dulles Intl to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Dulles Intl to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Waterloo that are best for you.

Best time to book a flight from Dulles Intl to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Dulles Intl with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

How long is the flight from Washington, D.C. Dulles Intl Airport to Waterloo, Iowa?

Can I find deals for flights from Dulles Intl to Waterloo that include hotel bookings?

How can I find direct flights from Dulles Intl to Waterloo?

Can I find deals for business class flights from Dulles Intl to Waterloo?

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Cheapest flights from Dulles Intl to Waterloo
Explore the most affordable flight options available from Dulles Intl to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.