$373+ Cheap flights from Portland to Waterloo, IA (PDX - ALO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ALO
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Waterloo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Waterloo
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Last-minute
One-way
Cheapest flights from Portland to WaterlooExplore 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 September 2, 2026.
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 September 2, 2026.
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 9/306:01 am -
1 stop6h 54m
Sat 10/35:00 am -
1 stop7h 55m
Deal found 8/28![American Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/151:12 pm -
1 stop8h 39m
Sat 10/176:07 am -
1 stop8h 15m
Deal found 8/30![American Airlines logo]()
$538
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/166:01 am -
1 stop15h 50m
Sun 10/183:39 pm -
1 stop10h 20m
Deal found 8/30![American Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/156:01 am -
1 stop7h 08m
Sun 10/186:07 am -
2 stops12h 56m
Deal found 8/30![American Airlines logo]()
$822
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/511:30 pm -
2 stops13h 22m
Mon 9/75:00 am -
1 stop8h 34m
Deal found 9/2![American Airlines logo]()
$849
Best flights from Portland to WaterlooDiscover carefully curated flight deals from Portland to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Portland to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Wed 9/306:01 am -
1 stop6h 54m
Sat 10/35:00 am -
1 stop7h 55m
Deal found 8/31![American Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/151:12 pm -
1 stop8h 39m
Sat 10/176:07 am -
1 stop8h 15m
Deal found 8/30![American Airlines logo]()
$538
Last-minute flights from Portland to WaterlooDiscover last-minute flight deals from Portland to Waterloo. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Waterloo. Data last updated September 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 9/306:01 am -
1 stop6h 54m
Sat 10/35:00 am -
1 stop7h 55m
Deal found 8/28![American Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/151:12 pm -
1 stop8h 39m
Sat 10/176:07 am -
1 stop8h 15m
Deal found 8/30![American Airlines logo]()
$538
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/156:01 am -
1 stop7h 08m
Sun 10/186:07 am -
2 stops12h 56m
Deal found 8/30![American Airlines logo]()
$822
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/166:01 am -
1 stop15h 50m
Sun 10/183:39 pm -
1 stop10h 20m
Deal found 8/30![American Airlines logo]()
$569
One-way flights from Portland to WaterlooSearch for one-way flight options from Portland to Waterloo. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Portland to Waterloo. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/2611:08 pm -
1 stop13h 47m
Deal found 8/31![American Airlines logo]()
$373
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 September 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $504 (American Airlines) |
One-way from | $373 (American Airlines) |
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 7,457,451 searches. Data last updated September 2, 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
Cheapest round-trip
Quickest round-trip
PortlandWaterloo
PDX Portland - ALO Waterloo
PDXALO
Portland
Wed 9/30
6:01 am-2:55 pm
1 stop6h 54m
Waterloo
Sat 10/3
5:00 am-10:55 am
1 stop7h 55m
$504
PortlandWaterloo
PDX Portland - ALO Waterloo
PDXALO
Portland
Thu 10/15
1:12 pm-11:51 pm
1 stop8h 39m
Waterloo
Sat 10/17
6:07 am-12:22 pm
1 stop8h 15m
$538
Cheapest one-way
Quickest one-way
PortlandWaterloo
PDX Portland - ALO Waterloo
PDXALO
Portland
Sat 9/26
11:08 pm-2:55 pm
1 stop13h 47m
$373
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Portland-Waterloo, Iowa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Waterloo, Iowa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Waterloo, Iowa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Waterloo, Iowa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Waterloo, Iowa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
PDX-ALO
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.
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.
Traveling to a place near Waterloo?
Book flights to Waterloo if you plan to visit one of these locationsCedar Falls
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