Which airports can I use when flying from Waterloo to Seattle?

Flights from Waterloo to Seattle usually depart from Waterloo (ALO) and arrive at Seattle/Tacoma Intl (SEA).

What cabin classes can I book on flights from Waterloo to Seattle?

Only Economy Class is available on flights from Waterloo to Seattle.

Which airports do connecting flights from Waterloo to Seattle pass through?

Most connecting flights from Waterloo to Seattle pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Can I save money by using flexible dates for flights from Waterloo to Seattle?

Yes. Being flexible with your travel dates can save you up to 51% on the Waterloo to Seattle route. Tuesday is the cheapest departure day at $354 round-trip on average, while Thursday is the most expensive at $713, a difference of $359. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Seattle?

Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Do I need a passport to fly from Waterloo to Seattle?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Waterloo to Seattle changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $469 to $883. That means the highest observed fare was about 88% higher than the lowest one.

What is the time difference between Waterloo and Seattle?

Seattle is 2 hours behind Waterloo (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include: • Fox • Europcar • Thrifty • Budget • Dollar

How much should I expect to pay for a Waterloo to Seattle flight?

Round-trip flights from Waterloo to Seattle range from $354 to $703, with an average of $598 over the past 12 months. Anything below $354 counts as a good deal.

What is the cheapest airline to fly from Waterloo to Seattle?

American Airlines ($469) offered the cheapest round-trip ticket from Waterloo to Seattle in the last 5 days.

What is the cheapest layover airport when flying from Waterloo to Seattle?

Flights via Chicago O'Hare Intl (ORD) offer the most affordable fares, with an average round-trip price of $637. Based on KAYAK data over the past 3 months.

When flying from Waterloo to Seattle which airport offers the shortest layover?

Chicago O'Hare Intl (ORD) had the shortest average connection time for Waterloo to Seattle layovers at 297 minutes over the past 3 months.

$469 CHEAP FLIGHTS from Waterloo to Seattle (ALO - SEA)

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Cheapest round-trip

$469

Typical prices: $354-$703

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Sun 10/7Thu 10/11

ALO - SEA • 1 stop

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Flight Deals

Cheap Flights from Waterloo to Seattle (ALO-SEA)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Waterloo to Seattle

Wed, Oct 7 - Sun, Oct 11

6:07 am - 12:36 amALO Waterloo-SEA Seattle/Tacoma Intl

20h 29m1 stop Chicago O'Hare Intl

11:59 pm - 3:09 pmSEA Seattle/Tacoma Intl-ALO Waterloo

13h 10m1 stop Chicago O'Hare Intl

$469American Airlines

Thu, Oct 8 - Sun, Oct 11

3:39 pm - 9:31 amALO Waterloo-SEA Seattle/Tacoma Intl

19h 52m1 stop Chicago O'Hare Intl

11:59 pm - 3:09 pmSEA Seattle/Tacoma Intl-ALO Waterloo

13h 10m1 stop Chicago O'Hare Intl

$469American Airlines

Wed, Oct 7 - Sun, Oct 11

3:39 pm - 12:36 amALO Waterloo-SEA Seattle/Tacoma Intl

10h 57m1 stop Chicago O'Hare Intl

5:39 pm - 3:09 pmSEA Seattle/Tacoma Intl-ALO Waterloo

19h 30m1 stop Chicago O'Hare Intl

$471American Airlines

Fri, Oct 30 - Mon, Nov 2

3:39 pm - 10:16 amALO Waterloo-SEA Seattle/Tacoma Intl

20h 37m1 stop Chicago O'Hare Intl

11:34 pm - 11:38 pmSEA Seattle/Tacoma Intl-ALO Waterloo

22h 04m1 stop Chicago O'Hare Intl

$494American Airlines

Wed, Oct 7 - Sun, Oct 11

3:39 pm - 12:36 amALO Waterloo-SEA Seattle/Tacoma Intl

10h 57m1 stop Chicago O'Hare Intl

5:39 pm - 3:09 pmSEA Seattle/Tacoma Intl-ALO Waterloo

19h 30m1 stop Chicago O'Hare Intl

$561American Airlines

Sun, Nov 1 - Sun, Nov 8

6:04 am - 2:20 pmALO Waterloo-SEA Seattle/Tacoma Intl

10h 16m1 stop Chicago O'Hare Intl

6:14 am - 3:13 pmSEA Seattle/Tacoma Intl-ALO Waterloo

6h 59m1 stop Chicago O'Hare Intl

$572American Airlines

Sat, Oct 3 - Wed, Oct 7

5:00 am - 9:36 pmALO Waterloo-SEA Seattle/Tacoma Intl

18h 36m1 stop Chicago O'Hare Intl

5:39 pm - 3:09 pmSEA Seattle/Tacoma Intl-ALO Waterloo

19h 30m1 stop Chicago O'Hare Intl

$576American Airlines

Sat, Oct 3 - Wed, Oct 7

5:00 am - 4:42 pmALO Waterloo-SEA Seattle/Tacoma Intl

13h 42m2 stops Chicago O'Hare Intl Dallas/Fort Worth

5:39 pm - 3:09 pmSEA Seattle/Tacoma Intl-ALO Waterloo

19h 30m1 stop Chicago O'Hare Intl

$586American Airlines

Wed, Oct 7 - Sun, Oct 11

6:07 am - 2:17 pmALO Waterloo-SEA Seattle/Tacoma Intl

10h 10m1 stop Chicago O'Hare Intl

6:12 am - 3:09 pmSEA Seattle/Tacoma Intl-ALO Waterloo

6h 57m1 stop Chicago O'Hare Intl

$633American Airlines

Tue, Dec 22 - Tue, Jan 12

7:04 am - 1:06 pmALO Waterloo-SEA Seattle/Tacoma Intl

8h 02m1 stop Chicago O'Hare Intl

2:37 pm - 12:31 amSEA Seattle/Tacoma Intl-ALO Waterloo

7h 54m1 stop Chicago O'Hare Intl

$648American Airlines

Booking Insights

Price, demand and travel trends for Waterloo to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Waterloo to Seattle with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Waterloo to Seattle?

Round-trip flights from Waterloo to Seattle start at $469. Prices are typical for this route right now, with typical round-trip fares ranging from $354 to $703. The lowest price found in the past 5 days was $469 on American Airlines.

Find deals

When to book flights from Waterloo to Seattle

Are your dates flexible? Find out the best times to travel from Waterloo to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Waterloo to Seattle?
Flights from Waterloo to Seattle usually depart from Waterloo (ALO) and arrive at Seattle/Tacoma Intl (SEA).
What cabin classes can I book on flights from Waterloo to Seattle?
Only Economy Class is available on flights from Waterloo to Seattle.
Which airports do connecting flights from Waterloo to Seattle pass through?
Most connecting flights from Waterloo to Seattle pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from Waterloo to Seattle?
Yes. Being flexible with your travel dates can save you up to 51% on the Waterloo to Seattle route. Tuesday is the cheapest departure day at $354 round-trip on average, while Thursday is the most expensive at $713, a difference of $359. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What popular places can I visit in Seattle?
Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.
Do I need a passport to fly from Waterloo to Seattle?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Waterloo to Seattle changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $469 to $883. That means the highest observed fare was about 88% higher than the lowest one.
What is the time difference between Waterloo and Seattle?
Seattle is 2 hours behind Waterloo (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?
Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
• Fox
• Europcar
• Thrifty
• Budget
• Dollar
How much should I expect to pay for a Waterloo to Seattle flight?
Round-trip flights from Waterloo to Seattle range from $354 to $703, with an average of $598 over the past 12 months. Anything below $354 counts as a good deal.

If your dates can be flexible, aim for a Tuesday departure instead of Thursday. On this route, Tuesday flights average $354 - about $359 less than Thursday (50% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
- Seattle Airport Marriott
- Coast Gateway Hotel
- Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

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ALO - SEA

$469 Find Cheap Flights from Waterloo to Seattle - Compare and Save

Everything you should know

Cheap Flights from Waterloo to Seattle (ALO-SEA)

Recent round-trip flight deals from Waterloo to Seattle

Recent one-way flight deals from Waterloo to Seattle

Price, demand and travel trends for Waterloo to Seattle flights

How much is a round-trip flight from Waterloo to Seattle?

What is the cheapest airline to fly from Waterloo to Seattle?

What is the cheapest layover airport when flying from Waterloo to Seattle?

When flying from Waterloo to Seattle which airport offers the shortest layover?

When to book flights from Waterloo to Seattle

Your Waterloo to Seattle flight questions, answered

Your guide to booking Waterloo to Seattle flights

More options for your flight from Waterloo to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Waterloo to Seattle

Find direct flights to and from Waterloo and Seattle

Flights from domestic origins to Seattle

Flights to other popular destinations

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