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Cheap flights from Washington to Waterloo from $452

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 6/23. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:19 pm - 11:49 pm
SEA
-
ALO
8h 30m
1 stop
American Airlines Logo
5:40 am - 12:29 pm
ALO
-
SEA
8h 49m
1 stop
$497American Airlines
Sun, Apr 19 - Sun, Apr 26
American Airlines Logo
1:19 pm - 11:49 pm
SEA
-
ALO
8h 30m
1 stop
American Airlines Logo
5:40 am - 3:51 pm
ALO
-
SEA
12h 11m
2 stops
$502American Airlines
Sun, Apr 19 - Sun, Apr 26
American Airlines Logo
11:55 pm - 1:53 pm
SEA
-
ALO
11h 58m
2 stops
American Airlines Logo
2:23 pm - 12:44 am
ALO
-
SEA
12h 21m
2 stops
$508American Airlines
Sun, Apr 19 - Sun, Apr 26
American Airlines Logo
1:23 pm - 11:49 pm
PDX
-
ALO
8h 26m
1 stop
American Airlines Logo
5:40 am - 12:33 pm
ALO
-
PDX
8h 53m
1 stop
$536American Airlines
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
11:40 pm - 1:53 pm
PDX
-
ALO
12h 13m
2 stops
American Airlines Logo
5:40 am - 12:33 pm
ALO
-
PDX
8h 53m
1 stop
$541American Airlines
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
11:48 am - 11:49 pm
PDX
-
ALO
10h 01m
2 stops
American Airlines Logo
2:23 pm - 11:03 pm
ALO
-
PDX
10h 40m
2 stops
$546American Airlines
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
3:16 pm - 11:49 pm
PDX
-
ALO
6h 33m
1 stop
American Airlines Logo
2:23 pm - 11:54 pm
ALO
-
PDX
11h 31m
2 stops
$620American Airlines
Thu, Apr 16 - Thu, Apr 23
American Airlines Logo
11:40 pm - 1:53 pm
PDX
-
ALO
12h 13m
2 stops
American Airlines Logo
2:23 pm - 10:49 pm
ALO
-
PDX
10h 26m
2 stops
$626American Airlines
Thu, Apr 16 - Thu, Apr 23
American Airlines Logo
3:16 pm - 1:53 pm
PDX
-
ALO
20h 37m
1 stop
American Airlines Logo
2:23 pm - 10:56 pm
ALO
-
PDX
10h 33m
1 stop
$775American Airlines
Thu, Apr 16 - Thu, Apr 23
American Airlines Logo
11:59 pm - 1:53 pm
PDX
-
ALO
11h 54m
2 stops
American Airlines Logo
2:23 pm - 11:54 pm
ALO
-
PDX
11h 31m
2 stops
$1,070American Airlines
Mon, Apr 6 - Fri, Apr 10

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
Apr 19
SEA1:19 pmSeattle/Tacoma Intl
8h 30m
1 stop
ALO11:49 pmWaterloo
Apr 26
ALO5:40 amWaterloo
8h 49m
1 stop
SEA12:29 pmSeattle/Tacoma Intl
$497
American Airlines
Apr 19
SEA1:19 pmSeattle/Tacoma Intl
8h 30m
1 stop
ALO11:49 pmWaterloo
Apr 26
ALO5:40 amWaterloo
12h 11m
2 stops
SEA3:51 pmSeattle/Tacoma Intl
$502
American Airlines
Apr 19
SEA11:55 pmSeattle/Tacoma Intl
11h 58m
2 stops
ALO1:53 pmWaterloo
Apr 26
ALO2:23 pmWaterloo
12h 21m
2 stops
SEA12:44 amSeattle/Tacoma Intl
$508

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 March 23, 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
Quickest round-trip

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Sun 4/19

1:19 pm-11:49 pm

1 stop8h 30m

Waterloo

Sun 4/26

5:40 am-12:29 pm

1 stop8h 49m

$497

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Sun 4/19

1:19 pm-11:49 pm

1 stop8h 30m

Waterloo

Sun 4/26

5:40 am-3:51 pm

2 stops12h 11m

$502

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

Sun 4/19

11:55 pm-1:53 pm

2 stops11h 58m

Waterloo

Sun 4/26

2:23 pm-12:44 am

2 stops12h 21m

$508

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Wed 4/15

1:23 pm-11:49 pm

1 stop8h 26m

Waterloo

Wed 4/22

5:40 am-12:33 pm

1 stop8h 53m

$536

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Wed 4/15

11:40 pm-1:53 pm

2 stops12h 13m

Waterloo

Wed 4/22

5:40 am-12:33 pm

1 stop8h 53m

$541

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Wed 4/15

11:48 am-11:49 pm

2 stops10h 01m

Waterloo

Wed 4/22

2:23 pm-11:03 pm

2 stops10h 40m

$546

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 4/16

3:16 pm-11:49 pm

1 stop6h 33m

Waterloo

Thu 4/23

2:23 pm-11:54 pm

2 stops11h 31m

$620

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 4/16

11:40 pm-1:53 pm

2 stops12h 13m

Waterloo

Thu 4/23

2:23 pm-10:49 pm

2 stops10h 26m

$626

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 4/16

3:16 pm-1:53 pm

1 stop20h 37m

Waterloo

Thu 4/23

2:23 pm-10:56 pm

1 stop10h 33m

$775

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Mon 4/6

11:59 pm-1:53 pm

2 stops11h 54m

Waterloo

Fri 4/10

2:23 pm-11:54 pm

2 stops11h 31m

$1,070

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 34% 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 30m

Direct flights

None
The fastest flight from State of Washington to Waterloo, Iowa takes 8h 30m
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.
Search flight deals

  • 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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