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Cheap flights from Waterloo, Iowa to Seattle from $315

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Waterloo, Iowa to Seattle departing on 3/1. 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 Waterloo, Iowa to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:15 pm - 11:04 pm
ALO
-
SEA
9h 49m
1 stop
American Airlines Logo
1:37 pm - 11:53 pm
SEA
-
ALO
8h 16m
1 stop
$315American Airlines
Sun, Mar 1 - Tue, Mar 31
American Airlines Logo
3:15 pm - 11:04 pm
ALO
-
SEA
9h 49m
1 stop
American Airlines Logo
11:59 pm - 2:40 pm
SEA
-
ALO
12h 41m
2 stops
$320American Airlines
Sun, Mar 1 - Tue, Mar 31
American Airlines Logo
3:10 pm - 11:04 pm
ALO
-
SEA
9h 54m
1 stop
American Airlines Logo
1:37 pm - 11:53 pm
SEA
-
ALO
8h 16m
1 stop
$337American Airlines
Wed, Mar 25 - Mon, Mar 30
American Airlines Logo
3:10 pm - 12:55 am
ALO
-
SEA
11h 45m
2 stops
American Airlines Logo
1:37 pm - 11:53 pm
SEA
-
ALO
8h 16m
1 stop
$342American Airlines
Wed, Mar 25 - Mon, Mar 30
American Airlines Logo
3:15 pm - 11:04 pm
ALO
-
SEA
9h 49m
1 stop
American Airlines Logo
11:57 pm - 2:45 pm
SEA
-
ALO
12h 48m
2 stops
$451American Airlines
Fri, Feb 13 - Tue, Feb 24
American Airlines Logo
5:20 am - 7:42 pm
ALO
-
SEA
16h 22m
2 stops
American Airlines Logo
12:59 am - 2:45 pm
SEA
-
ALO
11h 46m
2 stops
$456American Airlines
Sat, Feb 14 - Tue, Feb 24
American Airlines Logo
3:15 pm - 12:55 am
ALO
-
SEA
11h 40m
2 stops
American Airlines Logo
11:59 pm - 2:40 pm
SEA
-
ALO
12h 41m
2 stops
$463American Airlines
Sun, Mar 1 - Tue, Mar 31
American Airlines Logo
5:20 am - 12:47 pm
ALO
-
SEA
9h 27m
1 stop
American Airlines Logo
11:57 pm - 2:45 pm
SEA
-
ALO
12h 48m
2 stops
$472American Airlines
Tue, Feb 17 - Sat, Feb 21
American Airlines Logo
5:20 am - 3:57 pm
ALO
-
SEA
12h 37m
2 stops
American Airlines Logo
11:26 am - 11:53 pm
SEA
-
ALO
10h 27m
2 stops
$477American Airlines
Tue, Feb 17 - Sat, Feb 21
American Airlines Logo
3:15 pm - 11:04 pm
ALO
-
SEA
9h 49m
1 stop
American Airlines Logo
1:37 pm - 11:53 pm
SEA
-
ALO
8h 16m
1 stop
$547American Airlines
Fri, Feb 13 - Wed, Feb 25

American Airlines flights from Waterloo, Iowa to Seattle

Our best American Airlines deals on Waterloo, Iowa to Seattle flight tickets
American Airlines
Mar 1
ALO3:15 pmWaterloo
9h 49m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
Mar 31
SEA1:37 pmSeattle/Tacoma Intl
8h 16m
1 stop
ALO11:53 pmWaterloo
$315
American Airlines
Mar 1
ALO3:15 pmWaterloo
9h 49m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
Mar 31
SEA11:59 pmSeattle/Tacoma Intl
12h 41m
2 stops
ALO2:40 pmWaterloo
$320
American Airlines
Mar 25
ALO3:10 pmWaterloo
9h 54m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
Mar 30
SEA1:37 pmSeattle/Tacoma Intl
8h 16m
1 stop
ALO11:53 pmWaterloo
$337

momondo Fare Finder

 
Customize your flight search to find flights from Waterloo, Iowa to Seattle 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 February 4, 2026.
Use the filters below to find and compare flights from Waterloo, Iowa to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Sun 3/1

3:15 pm-11:04 pm

1 stop9h 49m

Seattle/Tacoma Intl

Tue 3/31

1:37 pm-11:53 pm

1 stop8h 16m

$315

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Sun 3/1

3:15 pm-11:04 pm

1 stop9h 49m

Seattle/Tacoma Intl

Tue 3/31

11:59 pm-2:40 pm

2 stops12h 41m

$320

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Wed 3/25

3:10 pm-11:04 pm

1 stop9h 54m

Seattle/Tacoma Intl

Mon 3/30

1:37 pm-11:53 pm

1 stop8h 16m

$337

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Wed 3/25

3:10 pm-12:55 am

2 stops11h 45m

Seattle/Tacoma Intl

Mon 3/30

1:37 pm-11:53 pm

1 stop8h 16m

$342

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Fri 2/13

3:15 pm-11:04 pm

1 stop9h 49m

Seattle/Tacoma Intl

Tue 2/24

11:57 pm-2:45 pm

2 stops12h 48m

$451

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Sat 2/14

5:20 am-7:42 pm

2 stops16h 22m

Seattle/Tacoma Intl

Tue 2/24

12:59 am-2:45 pm

2 stops11h 46m

$456

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Sun 3/1

3:15 pm-12:55 am

2 stops11h 40m

Seattle/Tacoma Intl

Tue 3/31

11:59 pm-2:40 pm

2 stops12h 41m

$463

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Tue 2/17

5:20 am-12:47 pm

1 stop9h 27m

Seattle/Tacoma Intl

Sat 2/21

11:57 pm-2:45 pm

2 stops12h 48m

$472

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Tue 2/17

5:20 am-3:57 pm

2 stops12h 37m

Seattle/Tacoma Intl

Sat 2/21

11:26 am-11:53 pm

2 stops10h 27m

$477

WaterlooSeattle

ALO - SEA

ALOSEA

Waterloo

Fri 2/13

3:15 pm-11:04 pm

1 stop9h 49m

Seattle/Tacoma Intl

Wed 2/25

1:37 pm-11:53 pm

1 stop8h 16m

$547

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Waterloo, Iowa to Seattle

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

Can stopping save me money on Waterloo, Iowa to Seattle flights?

You could potentially save up to 8% on your flight if you consider stops on a Waterloo, Iowa to Seattle flight.

When to book flights from Waterloo, Iowa to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Waterloo, Iowa to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Waterloo, Iowa to Seattle (ALO to SEA) flight deals and tips

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

Fastest flight time

7h 22m

Direct flights

None
The fastest flight from Waterloo, Iowa to Seattle takes 7h 22m
There are no direct flights from Waterloo, Iowa to Seattle. There are no popular flight routes from Waterloo, Iowa to Seattle.
Search flight deals

  • How far is Waterloo to Seattle/Tacoma Intl by plane?

    There are 1495.1 mi between Waterloo and Seattle/Tacoma Intl. Flights usually cover this in 7h 22m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Waterloo Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Waterloo Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Waterloo Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Waterloo Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Waterloo Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl 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.

  • What is the most popular airline from Waterloo, Iowa to Seattle?

Best airlines flying from Waterloo, Iowa to Seattle

Compare and see reviews for airlines that fly from Waterloo, Iowa to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,216 reviews
Search American Airlines flights

Traveling to a place near Seattle?

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Why use momondo?

Why should I use momondo to find a flight deal from Waterloo to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Waterloo to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Waterloo to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Waterloo and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Waterloo and alert you when they change.

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