What airlines fly to Waterloo, Iowa?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Waterloo, Iowa from Seattle according to our data. American 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.

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

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

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

As of October 2025, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Waterloo Airport.

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

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

The travel and health documents required for your trip to Waterloo Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Waterloo Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$359 Cheap Flights from Seattle to Waterloo in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 7:57 pmSEA-ALO

8h 57m1 stop

3:28 pm - 11:18 pmALO-SEA

9h 50m1 stop

$359American Airlines

Find Deal

mié., nov. 12 - dom., nov. 16

12:41 am - 2:58 pmSEA-ALO

12h 17m2 stops

3:28 pm - 11:18 pmALO-SEA

9h 50m1 stop

$364American Airlines

Find Deal

mar., nov. 11 - dom., nov. 16

1:44 pm - 10:20 pmSEA-ALO

6h 36m1 stop

6:00 am - 3:58 pmALO-SEA

11h 58m2 stops

$478American Airlines

Find Deal

mar., mar. 3 - sáb., mar. 7

1:44 pm - 10:20 pmSEA-ALO

6h 36m1 stop

6:00 am - 3:58 pmALO-SEA

11h 58m2 stops

$480American Airlines

Find Deal

mar., mar. 3 - sáb., mar. 7

11:59 pm - 1:40 pmSEA-ALO

11h 41m2 stops

6:00 am - 3:58 pmALO-SEA

11h 58m2 stops

$483American Airlines

Find Deal

mar., mar. 3 - sáb., mar. 7

11:59 pm - 1:40 pmSEA-ALO

11h 41m2 stops

6:00 am - 3:58 pmALO-SEA

11h 58m2 stops

$485American Airlines

Find Deal

mar., mar. 3 - sáb., mar. 7

1:44 pm - 10:20 pmSEA-ALO

6h 36m1 stop

6:00 am - 3:58 pmALO-SEA

11h 58m2 stops

$490American Airlines

Find Deal

mar., mar. 3 - sáb., mar. 7

6:00 am - 10:20 pmSEA-ALO

14h 20m2 stops

6:00 am - 3:58 pmALO-SEA

11h 58m2 stops

$495American Airlines

Find Deal

mar., mar. 3 - sáb., mar. 7

2:46 pm - 11:48 pmSEA-ALO

7h 02m1 stop

3:20 pm - 11:18 pmALO-SEA

9h 58m1 stop

$497American Airlines

Find Deal

mar., nov. 25 - mar., dic. 2

12:59 am - 2:50 pmSEA-ALO

11h 51m2 stops

6:00 am - 1:54 pmALO-SEA

9h 54m1 stop

$550American Airlines

Find Deal

lun., nov. 24 - mar., dic. 2

American Airlines flights from Seattle to Waterloo, Iowa

Our best American Airlines deals on Seattle to Waterloo, Iowa flight tickets

American Airlines

Nov 12

SEA9:00 amSeattle/Tacoma Intl

8h 57m

1 stop

ALO7:57 pmWaterloo

Nov 16

ALO3:28 pmWaterloo

9h 50m

1 stop

SEA11:18 pmSeattle/Tacoma Intl

$359

Find similar

American Airlines

Nov 11

SEA12:41 amSeattle/Tacoma Intl

12h 17m

2 stops

ALO2:58 pmWaterloo

Nov 16

ALO3:28 pmWaterloo

9h 50m

1 stop

SEA11:18 pmSeattle/Tacoma Intl

$364

Find similar

American Airlines

Mar 3

SEA1:44 pmSeattle/Tacoma Intl

6h 36m

1 stop

ALO10:20 pmWaterloo

Mar 7

ALO6:00 amWaterloo

11h 58m

2 stops

SEA3:58 pmSeattle/Tacoma Intl

$478

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mié. 11/12

9:00 am-7:57 pm

1 stop8h 57m

Waterloo

dom. 11/16

3:28 pm-11:18 pm

1 stop9h 50m

$359

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 11/11

12:41 am-2:58 pm

2 stops12h 17m

Waterloo

dom. 11/16

3:28 pm-11:18 pm

1 stop9h 50m

$364

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 3/3

1:44 pm-10:20 pm

1 stop6h 36m

Waterloo

sáb. 3/7

6:00 am-3:58 pm

2 stops11h 58m

$478

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 3/3

1:44 pm-10:20 pm

1 stop6h 36m

Waterloo

sáb. 3/7

6:00 am-3:58 pm

2 stops11h 58m

$480

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 3/3

11:59 pm-1:40 pm

2 stops11h 41m

Waterloo

sáb. 3/7

6:00 am-3:58 pm

2 stops11h 58m

$483

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 3/3

11:59 pm-1:40 pm

2 stops11h 41m

Waterloo

sáb. 3/7

6:00 am-3:58 pm

2 stops11h 58m

$485

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 3/3

1:44 pm-10:20 pm

1 stop6h 36m

Waterloo

sáb. 3/7

6:00 am-3:58 pm

2 stops11h 58m

$490

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 3/3

6:00 am-10:20 pm

2 stops14h 20m

Waterloo

sáb. 3/7

6:00 am-3:58 pm

2 stops11h 58m

$495

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

mar. 11/25

2:46 pm-11:48 pm

1 stop7h 02m

Waterloo

mar. 12/2

3:20 pm-11:18 pm

1 stop9h 58m

$497

SeattleWaterloo

SEA - ALO

SEAALO

Seattle/Tacoma Intl

lun. 11/24

12:59 am-2:50 pm

2 stops11h 51m

Waterloo

mar. 12/2

6:00 am-1:54 pm

1 stop9h 54m

$550

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seattle 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

Prices

Airlines

What is the cheapest day to depart on your flight to Waterloo, Iowa?

The cheapest day to depart on your flight to Waterloo, Iowa is on a Thursday when prices can be found for as low as $756. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $981.

What is the cheapest time of day to depart on your flight to Waterloo, Iowa?

Our data shows that the cheapest Seattle to Waterloo, Iowa flights are usually those with departure times in the evening. Our users have found flights to Waterloo, Iowa in the evening for as low as $656. Flights in the morning are often more expensive with an average ticket price of $832.

When to book flights from Seattle to Waterloo, Iowa

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

Estimated round-trip price

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

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

Direct flights	None

There are no direct flights from Seattle to Waterloo, Iowa. There are no popular flight routes from Seattle to Waterloo, Iowa.

Search flight deals

How far is Seattle/Tacoma Intl to Waterloo by plane?
There are 1495.1 mi between Seattle/Tacoma Intl and Waterloo. 6h 36m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Waterloo Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Waterloo Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Waterloo Airport?
As of October 2025, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Waterloo Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport 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 Seattle/Tacoma Intl Airport to Waterloo Airport.
What documentation or ID do you need to fly to Waterloo Airport?
The travel and health documents required for your trip to Waterloo Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Waterloo Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Waterloo, Iowa?
Based on momondo bookings for flights between Seattle and Waterloo, Iowa, the leading airline is American Airlines, making up 100% of the total bookings.

Best airlines flying from Seattle to Waterloo, Iowa

Compare and see reviews for airlines that fly from Seattle to Waterloo, Iowa with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.2 11,034 reviews		Search American Airlines flights

Cedar Falls

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Waterloo for you.

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

Yes. momondo enables you to select and highlight flights to Waterloo from Seattle with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Waterloo from Seattle.

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

Yes momondo offers price alerts on flights to Waterloo from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.