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$535+ Cheap flights from Philadelphia to Waterloo, IA (PHL - 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ALO
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Philadelphia to Waterloo

Cheapest flights from Philadelphia to Waterloo
Explore the most affordable flight options available from Philadelphia to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This American Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 12/1710:57 amPHL - ALO
1 stop4h 59mAmerican Airlines
Thu 12/183:12 pmALO - PHL
1 stop5h 36mAmerican Airlines
Deal found 12/15$657

Find flight deals from Philadelphia to Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) 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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$535
(American Airlines)
Provider with most accurate pricing for Philadelphia-Waterloo flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Waterloo flights.
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From Philadelphia to Waterloo
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 December 16, 2025.
Use the filters below to find and compare flights from Philadelphia to Waterloo that are best for you.

Fly from

Philadelphia

Fly to

Waterloo

Route

Depart

Return

Price

PhiladelphiaWaterloo

PHL - ALO

PHLALO

Philadelphia

Thu 5/21

8:42 am-2:18 pm

1 stop6h 36m

Waterloo

Mon 5/25

2:48 pm-7:51 pm

1 stop4h 03m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Compare providers for flights from Philadelphia to Waterloo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Waterloo in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Waterloo, Iowa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Waterloo, Iowa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Philadelphia-Waterloo, Iowa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Waterloo, Iowa flights, Cheapflights users trust eDreams the most. eDreams 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 Philadelphia-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 Philadelphia to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Philadelphia 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 Philadelphia to Waterloo

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

Currently, August is the cheapest month in which you can book a flight from Philadelphia to Waterloo, Iowa (average of $83). Flying from Philadelphia to Waterloo, Iowa in January is currently the most expensive (average of $254). 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.

Reviews of airlines servicing Waterloo

Get insights into the airlines that provide service to Waterloo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Waterloo. Reviews last updated December 16, 2025.
Peruse reviews from past customers who have flown with American Airlines from Philadelphia to Waterloo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,049 reviews

Food

6.5

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Overall

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,049 reviews
American Airlines
7.2
Good
11,049 reviews

Food

6.5

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Overall

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

Related info for your journey

Find useful and relevant information for your journey from Philadelphia 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 Philadelphia to Waterloo, Iowa?

    There are many flights that can get you from Philadelphia to Waterloo, Iowa in 6h 36m. Fly via American Airlines to get the fastest option. The distance between Philadelphia and Waterloo, Iowa is about 909 mi.

  • What is the cheapest airline to fly from Philadelphia to Waterloo, Iowa round-trip?

    According to our current data, American Airlines ($248), offers the cheapest pricing from Philadelphia to Waterloo, Iowa.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia 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 Philadelphia to Waterloo, Iowa?

    Currently, August is the cheapest month in which you can book a flight from Philadelphia to Waterloo, Iowa (average of $83). Flying from Philadelphia to Waterloo, Iowa in January is currently the most expensive (average of $254). 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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Top airline flying from Philadelphia to Waterloo

Discover the top airline that operate flights from Philadelphia to Waterloo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$376FlexibilityNo cancel feeOn-time71%

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