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Waterloo

$519+ Cheap flights from Portland to Waterloo, IA (PDX - ALO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ALO
May 16 — May 231
Sat 5/16
Sat 5/23
1 adult, Economy
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Cheap flight deals from Portland to Waterloo

Cheapest flights from Portland to Waterloo
Explore the most affordable flight options available from Portland to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 16, 2026.

This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:47 pm
PDX
-
ALO
1 stop22h 08m
American Airlines
Mon 5/182:23 pm
ALO
-
PDX
1 stop10h 24m
American Airlines
Deal found 4/15$519
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/111:39 pm
PDX
-
ALO
1 stop8h 20m
American Airlines
Sun 7/193:26 pm
ALO
-
PDX
1 stop8h 23m
American Airlines
Deal found 4/15$521
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:16 pm
PDX
-
ALO
1 stop20h 37m
American Airlines
Mon 5/185:40 am
ALO
-
PDX
1 stop20h 08m
American Airlines
Deal found 4/15$539
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:16 pm
PDX
-
ALO
1 stop20h 37m
American Airlines
Sat 5/162:23 pm
ALO
-
PDX
1 stop10h 24m
American Airlines
Deal found 4/13$583
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:45 pm
PDX
-
ALO
1 stop8h 24m
American Airlines
Sat 6/65:00 am
ALO
-
PDX
1 stop6h 57m
American Airlines
Deal found 4/13$604
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:22 am
PDX
-
ALO
1 stop15h 33m
American Airlines
Fri 5/152:23 pm
ALO
-
PDX
1 stop11h 25m
American Airlines
Deal found 4/13$611

Find flight deals from Portland to Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Waterloo (ALO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 16, 2026.

Round-trip from

$519
(American Airlines)
From Portland to Waterloo
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Waterloo 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, Cheapflights users made 2,558,603 searches. Data last updated April 16, 2026.
Use the filters below to find and compare flights from Portland to Waterloo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Fri 5/15

11:47 pm-11:55 pm

1 stop22h 08m

Waterloo

Mon 5/18

2:23 pm-10:47 pm

1 stop10h 24m

$519

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 5/14

3:16 pm-1:53 pm

1 stop20h 37m

Waterloo

Mon 5/18

5:40 am-11:48 pm

1 stop20h 08m

$539

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Sat 5/9

3:16 pm-1:53 pm

1 stop20h 37m

Waterloo

Sat 5/16

2:23 pm-10:47 pm

1 stop10h 24m

$583

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Sat 5/9

6:22 am-11:55 pm

1 stop15h 33m

Waterloo

Fri 5/15

2:23 pm-11:48 pm

1 stop11h 25m

$611

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 5/28

9:47 pm-2:32 pm

2 stops14h 45m

Waterloo

Sat 6/6

5:00 am-12:44 pm

2 stops9h 44m

$619

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Fri 5/15

11:47 pm-11:55 pm

1 stop22h 08m

Waterloo

Tue 5/19

2:23 pm-10:47 pm

1 stop10h 24m

$631

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Thu 5/14

11:47 pm-11:55 pm

1 stop22h 08m

Waterloo

Tue 5/19

2:23 pm-11:48 pm

1 stop11h 25m

$631
Quickest round-trip

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Wed 4/29

11:47 pm-1:53 pm

1 stop12h 06m

Waterloo

Sun 5/3

2:23 pm-10:56 pm

1 stop10h 33m

$637

PortlandWaterloo

PDX - ALO

PDXALO

Portland

Tue 5/26

9:47 pm-2:32 pm

2 stops14h 45m

Waterloo

Fri 6/5

5:00 am-12:55 pm

2 stops9h 55m

$646

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Sorted by cheapest first

Best time to book a flight from Portland to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Waterloo

What is the cheapest month to book a flight from Portland to Waterloo, Iowa?

Currently, September is the cheapest month in which you can book a flight from Portland to Waterloo, Iowa (average of $71). Flying from Portland to Waterloo, Iowa in November is currently the most expensive (average of $343). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Portland to Waterloo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Waterloo, Iowa?

    For as low as $519, American Airlines can have you in Waterloo, Iowa from Portland in 22h 08m. Airlines will cover a distance of 1503 mi.

  • Can I find deals for flights from Portland to Waterloo that include hotel bookings?

    Yes. In addition to deals on Portland to Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Waterloo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Waterloo.

  • Can I find deals for business class flights from Portland to Waterloo?

    Yes. Cheapflights offers flight deals from Portland to Waterloo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Waterloo, Iowa?

    Currently, September is the cheapest month in which you can book a flight from Portland to Waterloo, Iowa (average of $71). Flying from Portland to Waterloo, Iowa in November is currently the most expensive (average of $343). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Waterloo?

Book flights to Waterloo if you plan to visit one of these locations
Cedar Falls

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