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 DC to ALO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Waterloo, Iowa as you normally would.

What airport do you fly into for flights to Waterloo from District of Columbia?

Waterloo (ALO) is the airport you will fly into if you book a flight from District of Columbia to Waterloo. It is only a 5.3 mi journey from Waterloo (ALO) to Waterloo’s city center.

How can I find direct flights from District of Columbia to Waterloo?

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

Can I find deals for business class flights from District of Columbia to Waterloo?

Yes. Cheapflights offers flight deals from District of Columbia 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.

$481+ Flights from District of Columbia to Waterloo, IA

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from District of Columbia to Waterloo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from District of Columbia to Waterloo

Round-trip from	$498 (American Airlines)

From District of Columbia to Waterloo

Search Deals

Find flight deals from District of Columbia to Waterloo

Cheapest flights from District of Columbia to Waterloo
Explore the most affordable flight options available from District of Columbia to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

sáb. 10/46:45 amDCA - ALO

2 stops16h 20mAmerican Airlines

mar. 10/76:00 amALO - DCA

2 stops14h 10mAmerican Airlines

Deal found 7/29

$498

sáb. 12/62:04 pmIAD - ALO

2 stops8h 57mAmerican Airlines

mié. 12/102:51 pmALO - IAD

2 stops8h 04mAmerican Airlines

Deal found 7/30

$529

Best flights from District of Columbia to Waterloo
Discover carefully curated flight deals from District of Columbia to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 31, 2025.

sáb. 10/46:45 amDCA - ALO

2 stops16h 20mAmerican Airlines

mar. 10/76:00 amALO - DCA

2 stops14h 10mAmerican Airlines

Deal found 7/29

$498

sáb. 12/62:04 pmIAD - ALO

2 stops8h 57mAmerican Airlines

mié. 12/102:51 pmALO - IAD

2 stops8h 04mAmerican Airlines

Deal found 7/30

$529

Last-minute flights from District of Columbia to Waterloo
Discover last-minute flight deals from District of Columbia to Waterloo. Data last updated julio 31, 2025 and is based on user searches.

sáb. 8/99:14 amIAD - ALO

2 stops10h 09mAmerican Airlines

mar. 8/126:00 amALO - IAD

2 stops8h 19mAmerican Airlines

Deal found 7/29

$561

jue. 8/2810:55 amDCA - ALO

1 stop4h 49mAmerican Airlines

dom. 8/316:00 amALO - DCA

1 stop4h 00mAmerican Airlines

Deal found 7/31

$532

One-way flights from District of Columbia to Waterloo
Search for one-way flight options from District of Columbia to Waterloo. Find affordable one-way fares based on user searches. Data last updated julio 31, 2025.

jue. 8/281:18 pmIAD - ALO

2 stops11h 19mAmerican Airlines

Deal found 7/28

$481

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Waterloo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

sáb. 10/4

6:45 am-10:05 pm

2 stops16h 20m

Waterloo

mar. 10/7

6:00 am-9:10 pm

2 stops14h 10m

$498

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

sáb. 12/6

2:04 pm-10:01 pm

2 stops8h 57m

Waterloo

mié. 12/10

2:51 pm-11:55 pm

2 stops8h 04m

$529

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

jue. 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 District of Columbia to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from District of Columbia 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 District of Columbia to Waterloo

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

Reviews of airlines servicing Waterloo

Get a feel of what it's like to fly with American Airlines from District of Columbia to Waterloo by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

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

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

Related info for your journey

What airport do you fly into for flights to Waterloo from District of Columbia?
Waterloo (ALO) is the airport you will fly into if you book a flight from District of Columbia to Waterloo. It is only a 5.3 mi journey from Waterloo (ALO) to Waterloo’s city center.
Can I find deals for flights from District of Columbia to Waterloo that include hotel bookings?
Yes. In addition to deals on District of Columbia to Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Waterloo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Waterloo.
Can I find deals for business class flights from District of Columbia to Waterloo?
Yes. Cheapflights offers flight deals from District of Columbia 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

Cedar Falls

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for District of Columbia to Waterloo

Seattle to Omaha flights

Denver to Omaha flights

LaGuardia to Omaha flights

Denver to Cedar Rapids flights

Denver to Des Moines flights

Sky Harbor Intl to Des Moines flights

John F Kennedy Intl to Omaha flights

LaGuardia to Des Moines flights

Philadelphia to Omaha flights

Dallas/Fort Worth to Omaha flights

Seattle to Des Moines flights

Newark to Omaha flights

O'Hare Intl to Omaha flights

O'Hare Intl to Des Moines flights

Dallas/Fort Worth to Des Moines flights

Charlotte to Des Moines flights

George Bush Intcntl to Des Moines flights

John F Kennedy Intl to Des Moines flights

Atlanta to Omaha flights

Hobby to Des Moines flights

San Diego to Moline flights

Asheville to Omaha flights

Reagan-National to Omaha flights

Los Angeles to Omaha flights

Sky Harbor Intl to Cedar Rapids flights

Reagan-National to Des Moines flights

Detroit to Des Moines flights

Dallas/Fort Worth to Cedar Rapids flights

Ontario to Cedar Rapids flights

San Francisco to Omaha flights

San Diego to Cedar Rapids flights

Nashville to Omaha flights

Dulles Intl to Omaha flights

Los Angeles to Des Moines flights

Greenville to Des Moines flights

Newark to Cedar Rapids flights

Los Angeles to Cedar Rapids flights

Atlanta to Des Moines flights

Sky Harbor Intl to Omaha flights

John F Kennedy Intl to Cedar Rapids flights

Austin to Omaha flights

Dulles Intl to Des Moines flights

Reagan-National to Cedar Rapids flights

Baltimore to Omaha flights

LaGuardia to Cedar Rapids flights

Santa Ana to Omaha flights

Salt Lake City to Omaha flights

Ontario to Omaha flights

Detroit to Omaha flights

George Bush Intcntl to Omaha flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$481+ Cheap flights from District of Columbia to Waterloo, IA (ALO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia to Waterloo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from District of Columbia to Waterloo

Keep the following information in mind while searching for District of Columbia to Waterloo flight deals. Data was last updated julio 31, 2025.

Round-trip from

Find flight deals from District of Columbia to Waterloo

Cheapest flights from District of Columbia to WaterlooExplore the most affordable flight options available from District of Columbia to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

Explore the most affordable flight options available from District of Columbia to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Waterloo that are best for you.

Best time to book a flight from District of Columbia to Waterloo

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

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Waterloo

Reviews of airlines servicing Waterloo

Get a feel of what it's like to fly with American Airlines from District of Columbia to Waterloo by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

Can I find deals for flights from District of Columbia to Waterloo that include hotel bookings?

How can I find direct flights from District of Columbia to Waterloo?

Can I find deals for business class flights from District of Columbia to Waterloo?

Traveling to a place near Waterloo?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Waterloo

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from District of Columbia to Waterloo
Explore the most affordable flight options available from District of Columbia to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.