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Cheap flights from Washington to Waterloo from $352

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 to Waterloo departing on 6/17. 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 Washington to Waterloo

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:20 pm - 2:49 pm
PDX
-
ALO
13h 29m
1 stop
American Airlines Logo
3:19 pm - 11:39 am
ALO
-
PDX
22h 20m
1 stop
$518American Airlines
Thu, Aug 13 - Tue, Aug 18
American Airlines Logo
11:20 pm - 2:49 pm
PDX
-
ALO
13h 29m
1 stop
American Airlines Logo
5:00 am - 5:21 pm
ALO
-
PDX
14h 21m
2 stops
$538American Airlines
Thu, Aug 13 - Tue, Aug 18
American Airlines Logo
10:27 am - 12:21 am
SEA
-
ALO
11h 54m
1 stop
American Airlines Logo
3:00 pm - 9:27 am
ALO
-
SEA
20h 27m
1 stop
$547American Airlines
Fri, Jun 5 - Mon, Jun 15
American Airlines Logo
1:45 pm - 12:29 am
PDX
-
ALO
8h 44m
1 stop
American Airlines Logo
5:06 am - 10:36 am
ALO
-
PDX
7h 30m
1 stop
$562American Airlines
Thu, Jul 30 - Sun, Aug 2
American Airlines Logo
1:45 pm - 12:09 am
PDX
-
ALO
8h 24m
1 stop
American Airlines Logo
5:00 am - 9:57 am
ALO
-
PDX
6h 57m
1 stop
$568American Airlines
Sat, May 23 - Tue, May 26
American Airlines Logo
1:45 pm - 12:09 am
PDX
-
ALO
8h 24m
1 stop
American Airlines Logo
5:00 am - 12:55 pm
ALO
-
PDX
9h 55m
2 stops
$578American Airlines
Sat, May 23 - Tue, May 26
American Airlines Logo
11:43 pm - 2:32 pm
PDX
-
ALO
12h 49m
2 stops
American Airlines Logo
5:00 am - 12:55 pm
ALO
-
PDX
9h 55m
2 stops
$583American Airlines
Sat, May 23 - Tue, May 26
American Airlines Logo
1:45 pm - 12:21 am
PDX
-
ALO
8h 36m
1 stop
American Airlines Logo
5:00 am - 10:22 am
ALO
-
PDX
7h 22m
1 stop
$591American Airlines
Wed, Jun 17 - Sat, Jun 20
American Airlines Logo
1:58 pm - 12:21 am
SEA
-
ALO
8h 23m
1 stop
American Airlines Logo
3:00 pm - 12:59 am
ALO
-
SEA
11h 59m
2 stops
$608American Airlines
Fri, Jun 5 - Mon, Jun 15
American Airlines Logo
11:59 pm - 2:49 pm
PDX
-
ALO
12h 50m
2 stops
American Airlines Logo
5:00 am - 1:52 pm
ALO
-
PDX
10h 52m
2 stops
$608American Airlines
Thu, Aug 13 - Tue, Aug 18

American Airlines flights from State of Washington to Waterloo, Iowa

Our best American Airlines deals on State of Washington to Waterloo, Iowa flight tickets
American Airlines
Aug 13
PDX11:20 pmPortland
13h 29m
1 stop
ALO2:49 pmWaterloo
Aug 18
ALO3:19 pmWaterloo
22h 20m
1 stop
PDX11:39 amPortland
$518
American Airlines
Aug 13
PDX11:20 pmPortland
13h 29m
1 stop
ALO2:49 pmWaterloo
Aug 18
ALO5:00 amWaterloo
14h 21m
2 stops
PDX5:21 pmPortland
$538
American Airlines
Jun 5
SEA10:27 amSeattle/Tacoma Intl
11h 54m
1 stop
ALO12:21 amWaterloo
Jun 15
ALO3:00 pmWaterloo
20h 27m
1 stop
SEA9:27 amSeattle/Tacoma Intl
$547

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 May 11, 2026.
Use the filters below to find and compare flights from Washington to Waterloo, Iowa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 8/13

11:20 pm-2:49 pm

1 stop13h 29m

Waterloo

Tue 8/18

3:19 pm-11:39 am

1 stop22h 20m

$518

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 8/13

11:20 pm-2:49 pm

1 stop13h 29m

Waterloo

Tue 8/18

5:00 am-5:21 pm

2 stops14h 21m

$538

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Fri 6/5

10:27 am-12:21 am

1 stop11h 54m

Waterloo

Mon 6/15

3:00 pm-9:27 am

1 stop20h 27m

$547

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 7/30

1:45 pm-12:29 am

1 stop8h 44m

Waterloo

Sun 8/2

5:06 am-10:36 am

1 stop7h 30m

$562
Quickest round-trip

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Sat 5/23

1:45 pm-12:09 am

1 stop8h 24m

Waterloo

Tue 5/26

5:00 am-9:57 am

1 stop6h 57m

$568

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Sat 5/23

1:45 pm-12:09 am

1 stop8h 24m

Waterloo

Tue 5/26

5:00 am-12:55 pm

2 stops9h 55m

$578

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Sat 5/23

11:43 pm-2:32 pm

2 stops12h 49m

Waterloo

Tue 5/26

5:00 am-12:55 pm

2 stops9h 55m

$583

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Wed 6/17

1:45 pm-12:21 am

1 stop8h 36m

Waterloo

Sat 6/20

5:00 am-10:22 am

1 stop7h 22m

$591

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Fri 6/5

1:58 pm-12:21 am

1 stop8h 23m

Waterloo

Mon 6/15

3:00 pm-12:59 am

2 stops11h 59m

$608

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 8/13

11:59 pm-2:49 pm

2 stops12h 50m

Waterloo

Tue 8/18

5:00 am-1:52 pm

2 stops10h 52m

$608

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Waterloo from

How to get the cheapest flight ticket from State of Washington 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 Washington to Waterloo?

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

What airlines fly to Waterloo, Iowa?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Waterloo, Iowa from State of Washington according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Waterloo, Iowa. Keep in mind that there are 6 different airlines that fly to Waterloo, Iowa on a routine basis, so you have a few additional options to choose from.

Cheap State of Washington to Waterloo, Iowa flight deals and tips

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

Fastest flight time

8h 36m

Direct flights

None
The fastest flight from State of Washington to Waterloo, Iowa takes 8h 36m
There are no direct flights from State of Washington to Waterloo, Iowa. There are no popular flight routes from State of Washington to Waterloo, Iowa.
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Frequently asked questions about flying from Washington to Waterloo, Iowa

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

    Prices for flights from Washington to Waterloo Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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 Washington to Waterloo?

It is quick and easy to find Washington to Waterloo flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Waterloo that suits you.

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

Yes. All flights to Waterloo from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Waterloo from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Waterloo from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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