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Cheap flights from Maryland to Waterloo from $309

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maryland to Waterloo departing on 5/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Maryland to Waterloo

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:52 pm - 11:57 pm
DCA
-
ALO
9h 05m
1 stop
American Airlines Logo
5:00 am - 6:00 pm
ALO
-
DCA
12h 00m
1 stop
$369American Airlines
Wed, Jun 24 - Tue, Jun 30
American Airlines Logo
7:37 pm - 11:57 pm
PHL
-
ALO
5h 20m
1 stop
American Airlines Logo
5:00 am - 11:40 am
ALO
-
PHL
5h 40m
1 stop
$410American Airlines
Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
7:37 pm - 11:57 pm
PHL
-
ALO
5h 20m
1 stop
American Airlines Logo
5:00 am - 2:51 pm
ALO
-
PHL
8h 51m
2 stops
$420American Airlines
Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
4:55 pm - 11:57 pm
PHL
-
ALO
8h 02m
2 stops
American Airlines Logo
5:00 am - 2:51 pm
ALO
-
PHL
8h 51m
2 stops
$425American Airlines
Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
6:00 am - 2:32 pm
BWI
-
ALO
9h 32m
1 stop
American Airlines Logo
5:00 am - 12:11 am
ALO
-
BWI
18h 11m
1 stop
$448American Airlines
Wed, Jul 1 - Wed, Jul 8
American Airlines Logo
3:51 pm - 2:52 pm
BWI
-
ALO
24h 01m
1 stop
American Airlines Logo
5:00 am - 8:37 pm
ALO
-
BWI
14h 37m
2 stops
$458American Airlines
Wed, Jul 1 - Wed, Jul 8
American Airlines Logo
1:43 pm - 11:57 pm
BWI
-
ALO
11h 14m
2 stops
American Airlines Logo
3:22 pm - 12:14 am
ALO
-
BWI
7h 52m
2 stops
$477American Airlines
Wed, Jul 1 - Wed, Jul 8
American Airlines Logo
11:35 am - 11:57 pm
DCA
-
ALO
13h 22m
1 stop
American Airlines Logo
3:02 pm - 11:59 pm
ALO
-
DCA
7h 57m
1 stop
$481American Airlines
Sat, Jun 6 - Mon, Jun 8
American Airlines Logo
6:20 am - 11:57 pm
IAD
-
ALO
18h 37m
2 stops
American Airlines Logo
5:00 am - 12:10 am
ALO
-
IAD
18h 10m
2 stops
$496American Airlines
Wed, Jul 1 - Wed, Jul 8
American Airlines Logo
5:18 am - 2:52 pm
PHL
-
ALO
10h 34m
1 stop
American Airlines Logo
5:00 am - 2:50 pm
ALO
-
PHL
8h 50m
1 stop
$497American Airlines
Fri, Jul 24 - Tue, Jul 28

American Airlines flights from Maryland to Waterloo, Iowa

Our best American Airlines deals on Maryland to Waterloo, Iowa flight tickets
American Airlines
Jun 24
DCA3:52 pmWashington, D.C. Reagan-National
9h 05m
1 stop
ALO11:57 pmWaterloo
Jun 30
ALO5:00 amWaterloo
12h 00m
1 stop
DCA6:00 pmWashington, D.C. Reagan-National
$369
American Airlines
Jun 17
PHL7:37 pmPhiladelphia
5h 20m
1 stop
ALO11:57 pmWaterloo
Jun 24
ALO5:00 amWaterloo
5h 40m
1 stop
PHL11:40 amPhiladelphia
$410
American Airlines
Jun 17
PHL7:37 pmPhiladelphia
5h 20m
1 stop
ALO11:57 pmWaterloo
Jun 24
ALO5:00 amWaterloo
8h 51m
2 stops
PHL2:51 pmPhiladelphia
$420

momondo Fare Finder

 
Customize your flight search to find flights from Maryland 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 21, 2026.
Use the filters below to find and compare flights from Maryland to Waterloo, Iowa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Wed 6/24

3:52 pm-11:57 pm

1 stop9h 05m

Waterloo

Tue 6/30

5:00 am-6:00 pm

1 stop12h 00m

$369
Quickest round-trip

PhiladelphiaWaterloo

PHL - ALO

PHLALO

Philadelphia

Wed 6/17

7:37 pm-11:57 pm

1 stop5h 20m

Waterloo

Wed 6/24

5:00 am-11:40 am

1 stop5h 40m

$410

PhiladelphiaWaterloo

PHL - ALO

PHLALO

Philadelphia

Wed 6/17

7:37 pm-11:57 pm

1 stop5h 20m

Waterloo

Wed 6/24

5:00 am-2:51 pm

2 stops8h 51m

$420

PhiladelphiaWaterloo

PHL - ALO

PHLALO

Philadelphia

Wed 6/17

4:55 pm-11:57 pm

2 stops8h 02m

Waterloo

Wed 6/24

5:00 am-2:51 pm

2 stops8h 51m

$425

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Wed 7/1

6:00 am-2:32 pm

1 stop9h 32m

Waterloo

Wed 7/8

5:00 am-12:11 am

1 stop18h 11m

$448

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Wed 7/1

3:51 pm-2:52 pm

1 stop24h 01m

Waterloo

Wed 7/8

5:00 am-8:37 pm

2 stops14h 37m

$458

BaltimoreWaterloo

BWI - ALO

BWIALO

Baltimore/Washington

Wed 7/1

1:43 pm-11:57 pm

2 stops11h 14m

Waterloo

Wed 7/8

3:22 pm-12:14 am

2 stops7h 52m

$477

Washington, D.C.Waterloo

DCA - ALO

DCAALO

Washington, D.C. Reagan-National

Sat 6/6

11:35 am-11:57 pm

1 stop13h 22m

Waterloo

Mon 6/8

3:02 pm-11:59 pm

1 stop7h 57m

$481

Washington, D.C.Waterloo

IAD - ALO

IADALO

Washington, D.C. Dulles Intl

Wed 7/1

6:20 am-11:57 pm

2 stops18h 37m

Waterloo

Wed 7/8

5:00 am-12:10 am

2 stops18h 10m

$496

PhiladelphiaWaterloo

PHL - ALO

PHLALO

Philadelphia

Fri 7/24

5:18 am-2:52 pm

1 stop10h 34m

Waterloo

Tue 7/28

5:00 am-2:50 pm

1 stop8h 50m

$497

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Waterloo from

How to get the cheapest flight ticket from Maryland 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 airline that flies from Maryland to Waterloo?

American Airlines is the most popular carrier operating from Maryland to Waterloo

What airlines fly to Waterloo, Iowa?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Waterloo, Iowa from Maryland according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Waterloo, Iowa. Keep in mind that there are 4 different airlines that fly to Waterloo, Iowa on a routine basis, so you have a few additional options to choose from.

Cheap Maryland to Waterloo, Iowa flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maryland to Waterloo, Iowa

Fastest flight time

4h 51m

Direct flights

None
The fastest flight from Maryland to Waterloo, Iowa takes 4h 51m
There are no direct flights from Maryland to Waterloo, Iowa. There are no popular flight routes from Maryland to Waterloo, Iowa.
Search flight deals

Frequently asked questions about flying from Maryland to Waterloo, Iowa

  • When did momondo last update prices for flights from Maryland to Waterloo Airport?

    Prices for flights from Maryland to Waterloo Airport refresh daily.

  • How old do you have to be to fly from Maryland to Waterloo Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maryland to Waterloo Airport.

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

    The necessary travel and health documents for your Waterloo Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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 Maryland to Waterloo?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Maryland to Waterloo. momondo saves you time and could save you money on your trip.

Can I find flights from Maryland to Waterloo with flexible booking policies on momondo?

momondo does allow users to show only those flights to Waterloo from Maryland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Maryland to Waterloo?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Maryland to Waterloo.

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

If you are not ready to book a flight from Maryland 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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