In terms of precipitation, rainfall in Waterloo, Iowa ranges from 0.8 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Waterloo, Iowa when rainfall is around 0.8 in.

If weather is an important factor for your trip to Waterloo, Iowa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 19.4 F).

What is the cheapest time of day to fly from GSP to ALO?

When flying from Greenville to Waterloo, Iowa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most trusted provider : When it comes to deals on Greenville-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 Greenville-Waterloo, Iowa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Greenville to Waterloo?

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

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

Yes. Cheapflights offers flight deals from Greenville 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.

$254+ Cheap Flights from Greenville to Waterloo, IA

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Cheap flight deals from Greenville to Waterloo

One-way

One-way flights from Greenville to Waterloo
Search for one-way flight options from Greenville to Waterloo. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.

Wed 10/146:43 pm -

1 stop6h 08m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$254

Find flight deals from Greenville to Waterloo

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars

Provider with most accurate pricing for Greenville-Waterloo flight deals.

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Provider most trusted by Cheapflights users for Greenville-Waterloo flights.

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GreenvilleWaterloo

GSP Greenville - ALO Waterloo

GSPALO

Greenville

Wed 10/14

6:43 pm-11:51 pm

1 stop6h 08m

Waterloo

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$254

GreenvilleWaterloo

GSP Greenville - ALO Waterloo

GSPALO

Greenville

Fri 10/16

6:43 pm-11:51 pm

1 stop6h 08m

Waterloo

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Sorted by cheapest first

Compare providers for flights from Greenville to Waterloo

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Greenville to Waterloo in September.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust 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 Greenville-Waterloo, Iowa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Greenville-Waterloo, Iowa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Greenville-Waterloo, Iowa flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Greenville-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 Greenville-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 Greenville to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Greenville with our price prediction graph.

GSP-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

Can I find deals for flights from Greenville to Waterloo that include hotel bookings?
Yes. In addition to deals on Greenville to Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Greenville to Waterloo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Greenville to Waterloo.
Can I find deals for business class flights from Greenville to Waterloo?
Yes. Cheapflights offers flight deals from Greenville 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.

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$254+ Cheap flights from Greenville to Waterloo, IA (GSP - 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Greenville to Waterloo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Greenville to Waterloo

One-way flights from Greenville to WaterlooSearch for one-way flight options from Greenville to Waterloo. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.

Search for one-way flight options from Greenville to Waterloo. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.

Find flight deals from Greenville to Waterloo

Most accurate provider

Most trusted provider

Cheapflights Fare Finder

Use the filters below to find and compare flights from Greenville to Waterloo that are best for you.

Compare providers for flights from Greenville 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 Greenville to Waterloo in September.

Best time to book a flight from Greenville to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from Greenville with our price prediction graph.

Related info for your journey

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

How can I find direct flights from Greenville to Waterloo?

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

Traveling to a place near Waterloo?

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Complete your trip

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Search flights from Greenville to Waterloo by cabin class

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Greenville and Waterloo flights

Browse other Greenville and Waterloo flight options. Last updated on September 15, 2026.

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One-way flights from Greenville to Waterloo
Search for one-way flight options from Greenville to Waterloo. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.