ALO

$315 Find Cheap Flights to Waterloo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Waterloo departing on 5/15. 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
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$410
American Airlines
Wed 6/17Wed 6/24
PHL - ALO • 1 stop
Cheapest one-way
$274
American Airlines
Fri 5/15
BOS - ALO • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
7:37 pm - 12:09 am
PHL
-
ALO
5h 32m
1 stop
American Airlines Logo
5:00 am - 11:38 am
ALO
-
PHL
5h 38m
1 stop
$410American Airlines
Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
7:37 pm - 12:09 am
PHL
-
ALO
5h 32m
1 stop
American Airlines Logo
5:00 am - 11:38 am
ALO
-
PHL
5h 38m
1 stop
$415American Airlines
Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
8:55 am - 2:32 pm
PHL
-
ALO
6h 37m
1 stop
American Airlines Logo
5:00 am - 2:51 pm
ALO
-
PHL
8h 51m
2 stops
$420American Airlines
Fri, May 15 - Sun, May 17
American Airlines Logo
7:36 am - 1:53 pm
DEN
-
ALO
5h 17m
1 stop
American Airlines Logo
5:40 am - 9:57 am
ALO
-
DEN
5h 17m
1 stop
$449American Airlines
Fri, May 15 - Sun, May 17
American Airlines Logo
11:46 am - 11:55 pm
DEN
-
ALO
11h 09m
2 stops
American Airlines Logo
5:40 am - 9:57 am
ALO
-
DEN
5h 17m
1 stop
$454American Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
5:44 pm - 11:49 pm
DEN
-
ALO
5h 05m
1 stop
American Airlines Logo
5:40 am - 9:57 am
ALO
-
DEN
5h 17m
1 stop
$455American Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
6:19 am - 1:53 pm
DEN
-
ALO
6h 34m
1 stop
American Airlines Logo
2:23 pm - 11:45 pm
ALO
-
DEN
10h 22m
2 stops
$465American Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
10:28 am - 11:49 pm
DEN
-
ALO
12h 21m
2 stops
American Airlines Logo
2:23 pm - 11:45 pm
ALO
-
DEN
10h 22m
2 stops
$471American Airlines
Thu, Aug 20 - Tue, Aug 25
American Airlines Logo
4:48 pm - 11:32 pm
AUS
-
ALO
6h 44m
1 stop
American Airlines Logo
6:00 am - 11:08 am
ALO
-
AUS
5h 08m
1 stop
$474American Airlines
Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
10:30 am - 2:32 pm
PHL
-
ALO
5h 02m
1 stop
American Airlines Logo
5:00 am - 11:38 am
ALO
-
PHL
5h 38m
1 stop
$479American 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$274
Flight from Boston 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.

  • How much is a flight to Waterloo?

    On average, a flight to Waterloo costs $719. The cheapest price found on KAYAK in the last 2 weeks cost $440 and departed from Chicago O'Hare Intl Airport.

  • 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.
7.1
American AirlinesOverall score based on 11520 reviews
7.9Crew
6.9Entertainment
7.5Boarding
7.2Comfort
6.4Food
Airline reviews

The flight changed gates multiple times and flight had to be delayed multiple times

4.0 OkayFaraz, Mar 2026
DFW - BWI
Read more American Airlines reviews

The flight changed gates multiple times and flight had to be delayed multiple times

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The flight attendant in business class was excellent! Professional, friendly and attentive.

Delays with no explanation. It could have been handled better.

Everything you need to know for your flight to Waterloo

Information on the airport you'll fly into in Waterloo