ALO

$289 Find Cheap Flights to Waterloo

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Waterloo departing on 2/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Waterloo

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Waterloo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Waterloo, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$289
American Airlines
Fri 2/20Tue 2/24
DEN - ALO • 1 stop
Cheapest one-way
$421
American Airlines
Sat 2/14
BWI - ALO • 1 stop
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We hope you love your trip to Waterloo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Waterloo

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Waterloo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Waterloo

Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
7:00 am - 2:45 pm
DEN
-
ALO
6h 45m
1 stop
American Airlines Logo
5:20 am - 11:41 am
ALO
-
DEN
7h 21m
1 stop
$289American Airlines
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
5:57 pm - 11:53 pm
DEN
-
ALO
4h 56m
1 stop
American Airlines Logo
5:20 am - 5:45 pm
ALO
-
DEN
13h 25m
2 stops
$294American Airlines
Fri, Mar 6 - Mon, Mar 9
American Airlines Logo
6:30 pm - 11:53 pm
AUS
-
ALO
5h 23m
1 stop
American Airlines Logo
5:20 am - 1:42 pm
ALO
-
AUS
8h 22m
1 stop
$309American Airlines
Fri, Mar 6 - Mon, Mar 9
American Airlines Logo
6:30 pm - 11:53 pm
AUS
-
ALO
5h 23m
1 stop
American Airlines Logo
5:20 am - 7:13 pm
ALO
-
AUS
13h 53m
2 stops
$314American Airlines
Fri, Feb 27 - Tue, Mar 10
American Airlines Logo
5:59 pm - 11:53 pm
EWR
-
ALO
6h 54m
1 stop
American Airlines Logo
5:20 am - 11:17 am
ALO
-
EWR
4h 57m
1 stop
$319American Airlines
Fri, Feb 27 - Tue, Mar 10
American Airlines Logo
8:29 am - 2:45 pm
JFK
-
ALO
7h 16m
1 stop
American Airlines Logo
5:20 am - 11:18 am
ALO
-
JFK
4h 58m
1 stop
$319American Airlines
Fri, Mar 6 - Mon, Mar 9
American Airlines Logo
3:29 pm - 11:53 pm
AUS
-
ALO
8h 24m
2 stops
American Airlines Logo
3:10 pm - 11:56 pm
ALO
-
AUS
8h 46m
2 stops
$319American Airlines
Fri, Feb 27 - Tue, Mar 10
American Airlines Logo
1:30 pm - 11:53 pm
EWR
-
ALO
11h 23m
2 stops
American Airlines Logo
5:20 am - 11:17 am
ALO
-
EWR
4h 57m
1 stop
$324American Airlines
Fri, Feb 27 - Tue, Mar 10
American Airlines Logo
2:00 pm - 11:53 pm
JFK
-
ALO
10h 53m
2 stops
American Airlines Logo
5:20 am - 11:18 am
ALO
-
JFK
4h 58m
1 stop
$324American Airlines
Fri, Feb 27 - Tue, Mar 10
American Airlines Logo
1:30 pm - 11:53 pm
EWR
-
ALO
11h 23m
2 stops
American Airlines Logo
5:20 am - 6:50 pm
ALO
-
EWR
12h 30m
2 stops
$329American Airlines
Booking Insights

KAYAK's insights & trends for flights to Waterloo

Get data-powered insights and trends for flights to Waterloo to help you find the cheapest flights, the best time to fly and much more.

What are the most popular airlines flying to Waterloo?

The most popular airline among KAYAK users flying to Waterloo is American Airlines, followed by United Airlines and Delta.

Good to know - Book Cheap Waterloo Plane Tickets

Cheapest flight$289
Flight from Denver to Waterloo

When to book flights to Waterloo

Are your dates flexible? Find out the best times to travel to Waterloo 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. The information is for flights to Waterloo based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Waterloo flights

  • How far is Waterloo Airport from central Waterloo?

    The distance between Waterloo Airport and downtown Waterloo is 5 miles.

  • What is the name of Waterloo’s airport?

    Waterloo is served by Waterloo Airport, also commonly referred to as Waterloo. The airport code is ALO.

  • What is the cheapest day to fly to Waterloo?

    Based on KAYAK data, the cheapest day to fly to Waterloo is Sunday where tickets can be as cheap as $740. On the other hand, the most expensive day to fly is Sunday, where prices are $740 on average.

  • How does KAYAK find such low prices on flights to Waterloo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Waterloo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Waterloo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Waterloo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Waterloo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Waterloo with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Waterloo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Waterloo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Waterloo

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Waterloo flight deals.

Reviews of the top airline flying to Waterloo

 
See real verified KAYAK customer reviews for airlines flying to Waterloo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to Waterloo. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Waterloo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11246 reviews
7.5Boarding
6.9Entertainment
6.4Food
7.2Comfort
8.0Crew
Airline reviews

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

4.0 OkaySuzanne, Feb 2026
DFW - BOI
Read more American Airlines reviews

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

They are always late and seats was also not having working charger

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

did not have enough meal for first class passengers so offer us snack

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

The screens were inoperable for movies and such, but everything else was just fine

Everything you need to know for your flight to Waterloo

Information on the airport you'll fly into in Waterloo