What is the difference between the most popular and the most frequent airline at Waterloo?

American Airlines operates the most flights from the United States to Waterloo at 12 per week, and for this route American Airlines is also the airline most often selected by KAYAK users searching for flights from the United States to Waterloo. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

How long is a nonstop flight to Waterloo?

Nonstop flights to Waterloo are available from Chicago, with a flight time of about 1h 21m.

Which city has the cheapest flights to Waterloo?

Based on fares booked in the past 5 days, the cheapest flights to Waterloo are from: • Chicago, from $204 round-trip • Detroit, from $389 round-trip • New York, from $454 round-trip

How many flights serve Waterloo?

Waterloo receives 2 flights per day and 12 per week from across the world. Chicago has the most flights to Waterloo, with 12 weekly flights.

How do I know if a flight to Waterloo is a good deal?

A good deal on a flight to Waterloo is around $398 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Which airlines should I consider for flights to Waterloo?

American Airlines is the most popular airline with KAYAK users flying to Waterloo, and has the best on-time record at the destination's main airport.

What is the cheapest flight to Waterloo?

Chicago O'Hare Intl Airport to Waterloo is the cheapest route at $204 round-trip, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Waterloo?

On average, a round-trip flight from the United States to Waterloo costs $507, based on KAYAK data over the past 12 months. Round-trip fares from New York average $359, while Cleveland runs a bit higher at $378.

What is the cheapest day to fly to Waterloo?

Saturday is the cheapest day to fly to Waterloo at $461 round-trip on average over the past 12 months on KAYAK. Thursday is the most expensive at $563.

What’s the cheapest month to fly to Waterloo?

•September is the cheapest month to fly to Waterloo with an average price of $393 round-trip. •June ($634) and July ($614) are the most expensive. Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Waterloo?

Afternoon flights to Waterloo are the cheapest at $465 round-trip on average. Night flights are the most expensive at $558.

What is a good deal for flights to Waterloo?

Flights under $398 are considered a good deal. 25% of KAYAK users found round-trip flights to Waterloo at or below these prices, with the lowest fares from: •Cleveland $258 •Orlando $299 •New York $338.

What are the most popular airlines flying to Waterloo?

American Airlines is the only airline flying to Waterloo on KAYAK.

Which airline offers the most nonstop flights to Waterloo?

American Airlines is the only airline that flies nonstop to Waterloo, with 12 flights per week.

How many direct flights to Waterloo are there each day?

There are around 2 daily direct flights to Waterloo. 50% depart in the afternoon and 50% at night.

How many direct flights to Waterloo are there each week?

There are 12 direct flights to Waterloo each week. Monday is the day with the most departures at 17%.

How many long-haul flights are there to Waterloo each week?

No long-haul flights serve this destination.

How many cities have direct flights to Waterloo?

1 city has direct flights to Waterloo. Chicago has the most with 12 direct flights per week.

$144 CHEAP FLIGHTS to Waterloo in 2026/27

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Never overpay with our price tracking tools.

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Cheapest round-trip

$204

Typical prices: $398-$587

American Airlines

Sat 10/13Wed 10/17

ORD - ALO • Non-stop

Cheapest one-way

$144

Typical prices: $316-$471

American Airlines

Sat 10/27

ORD - ALO • Non-stop

Nonstop flights

Every day

You can fly direct with American Airlines. Average duration is 1h 27m

FAQs

Top airlines

American Airlines

Most flights • 12 per week

American Airlines

Best reviews • 7.0 score

Airline reviews

Top routes

NYC - ALO

Cheapest • 30% average savings

BOS - ALO

Most popular

Insights

When to travel

September

Cheapest • 22% price drop

November

Most popular

Good to know

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We hope you love your trip to Waterloo!

Flight Deals

Cheap Flights to Waterloo

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

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Recent round-trip flight deals to Waterloo

Tue, Oct 13 - Sat, Oct 17

10:25 pm - 11:51 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 26mnonstop

6:07 am - 7:34 amALO Waterloo-ORD Chicago O'Hare Intl

1h 27mnonstop

$204American Airlines

Wed, Nov 25 - Mon, Nov 30

1:45 pm - 3:14 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 29mnonstop

3:44 pm - 5:26 pmALO Waterloo-ORD Chicago O'Hare Intl

1h 42mnonstop

$244American Airlines

Wed, Oct 14 - Mon, Oct 19

10:25 pm - 11:51 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 26mnonstop

6:07 am - 7:34 amALO Waterloo-ORD Chicago O'Hare Intl

1h 27mnonstop

$274American Airlines

Tue, Nov 10 - Thu, Nov 12

10:15 pm - 11:38 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 23mnonstop

3:43 pm - 5:24 pmALO Waterloo-ORD Chicago O'Hare Intl

1h 41mnonstop

$293American Airlines

Thu, Nov 5 - Sat, Nov 7

10:15 pm - 11:38 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 23mnonstop

6:04 am - 7:39 amALO Waterloo-ORD Chicago O'Hare Intl

1h 35mnonstop

$364American Airlines

Wed, Oct 28 - Wed, Nov 4

7:00 am - 11:51 pmDTW Detroit Metropolitan Wayne County-ALO Waterloo

17h 51m1 stop Chicago O'Hare Intl

6:04 am - 9:34 pmALO Waterloo-DTW Detroit Metropolitan Wayne County

14h 30m1 stop Chicago O'Hare Intl

$389American Airlines

Wed, Nov 25 - Sun, Nov 29

1:45 pm - 3:14 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 29mnonstop

5:56 am - 7:39 amALO Waterloo-ORD Chicago O'Hare Intl

1h 43mnonstop

$404American Airlines

Thu, Nov 26 - Thu, Dec 3

8:14 am - 3:14 pmLGA New York LaGuardia-ALO Waterloo

8h 00m1 stop Chicago O'Hare Intl

3:44 pm - 9:29 pmALO Waterloo-LGA New York LaGuardia

4h 45m1 stop Chicago O'Hare Intl

$454American Airlines

Thu, Nov 26 - Thu, Dec 3

10:44 am - 3:14 pmLGA New York LaGuardia-ALO Waterloo

5h 30m1 stop Chicago O'Hare Intl

5:34 am - 3:25 pmALO Waterloo-LGA New York LaGuardia

8h 51m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

$464American Airlines

Mon, Oct 26 - Mon, Nov 2

5:31 am - 3:09 pmEWR Newark-ALO Waterloo

10h 38m1 stop Chicago O'Hare Intl

6:04 am - 11:00 pmALO Waterloo-EWR Newark

15h 56m1 stop Chicago O'Hare Intl

$469American Airlines

Recent last minute flight deals to Waterloo

Sun, Oct 4 - Mon, Oct 5

1:28 pm - 2:55 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 27mnonstop

3:39 pm - 5:14 pmALO Waterloo-ORD Chicago O'Hare Intl

1h 35mnonstop

$693American Airlines

Sun, Oct 4 - Tue, Oct 6

10:38 pm - 11:59 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 21mnonstop

6:07 am - 7:34 amALO Waterloo-ORD Chicago O'Hare Intl

1h 27mnonstop

$813American Airlines

Sun, Oct 4 - Tue, Oct 6

9:06 am - 2:55 pmIAH Houston George Bush Intcntl-ALO Waterloo

5h 49m1 stop Chicago O'Hare Intl

6:07 am - 1:51 pmALO Waterloo-IAH Houston George Bush Intcntl

7h 44m1 stop Chicago O'Hare Intl

$985American Airlines

Sun, Oct 4 - Tue, Oct 6

4:57 pm - 11:59 pmIAH Houston George Bush Intcntl-ALO Waterloo

7h 02m1 stop Chicago O'Hare Intl

6:07 am - 5:45 pmALO Waterloo-IAH Houston George Bush Intcntl

11h 38m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$995American Airlines

Sun, Oct 4 - Tue, Oct 6

5:00 am - 2:55 pmIAH Houston George Bush Intcntl-ALO Waterloo

9h 55m2 stops Dallas/Fort Worth Chicago O'Hare Intl

6:07 am - 5:45 pmALO Waterloo-IAH Houston George Bush Intcntl

11h 38m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$1,000American Airlines

Sun, Oct 4 - Tue, Oct 6

10:44 am - 2:55 pmEWR Newark-ALO Waterloo

5h 11m1 stop Chicago O'Hare Intl

6:07 am - 1:30 pmALO Waterloo-EWR Newark

6h 23m1 stop Chicago O'Hare Intl

$1,020American Airlines

Sun, Oct 4 - Tue, Oct 6

8:09 pm - 11:59 pmLGA New York LaGuardia-ALO Waterloo

4h 50m1 stop Chicago O'Hare Intl

6:07 am - 1:31 pmALO Waterloo-LGA New York LaGuardia

6h 24m1 stop Chicago O'Hare Intl

$1,020American Airlines

Sun, Oct 4 - Tue, Oct 6

9:17 am - 2:55 pmLGA New York LaGuardia-ALO Waterloo

6h 38m1 stop Chicago O'Hare Intl

6:07 am - 4:30 pmALO Waterloo-LGA New York LaGuardia

9h 23m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

$1,030American Airlines

Sun, Oct 4 - Tue, Oct 6

9:08 am - 2:55 pmLGA New York LaGuardia-ALO Waterloo

6h 47m2 stops Washington, D.C. Reagan-National Chicago O'Hare Intl

6:07 am - 4:30 pmALO Waterloo-LGA New York LaGuardia

9h 23m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

$1,035American Airlines

All round-trip flight deals to Waterloo

Tue, Oct 13 - Sat, Oct 17

10:25 pm - 11:51 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 26mnonstop

6:07 am - 7:34 amALO Waterloo-ORD Chicago O'Hare Intl

1h 27mnonstop

$204American Airlines

Wed, Nov 25 - Mon, Nov 30

1:45 pm - 3:14 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 29mnonstop

3:44 pm - 5:26 pmALO Waterloo-ORD Chicago O'Hare Intl

1h 42mnonstop

$244American Airlines

Wed, Oct 14 - Mon, Oct 19

10:25 pm - 11:51 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 26mnonstop

6:07 am - 7:34 amALO Waterloo-ORD Chicago O'Hare Intl

1h 27mnonstop

$274American Airlines

Tue, Nov 10 - Thu, Nov 12

10:15 pm - 11:38 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 23mnonstop

3:43 pm - 5:24 pmALO Waterloo-ORD Chicago O'Hare Intl

1h 41mnonstop

$293American Airlines

Thu, Nov 5 - Sat, Nov 7

10:15 pm - 11:38 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 23mnonstop

6:04 am - 7:39 amALO Waterloo-ORD Chicago O'Hare Intl

1h 35mnonstop

$364American Airlines

Wed, Oct 28 - Wed, Nov 4

7:00 am - 11:51 pmDTW Detroit Metropolitan Wayne County-ALO Waterloo

17h 51m1 stop Chicago O'Hare Intl

6:04 am - 9:34 pmALO Waterloo-DTW Detroit Metropolitan Wayne County

14h 30m1 stop Chicago O'Hare Intl

$389American Airlines

Wed, Nov 25 - Sun, Nov 29

1:45 pm - 3:14 pmORD Chicago O'Hare Intl-ALO Waterloo

1h 29mnonstop

5:56 am - 7:39 amALO Waterloo-ORD Chicago O'Hare Intl

1h 43mnonstop

$404American Airlines

Thu, Nov 26 - Thu, Dec 3

8:14 am - 3:14 pmLGA New York LaGuardia-ALO Waterloo

8h 00m1 stop Chicago O'Hare Intl

3:44 pm - 9:29 pmALO Waterloo-LGA New York LaGuardia

4h 45m1 stop Chicago O'Hare Intl

$454American Airlines

Thu, Nov 26 - Thu, Dec 3

10:44 am - 3:14 pmLGA New York LaGuardia-ALO Waterloo

5h 30m1 stop Chicago O'Hare Intl

5:34 am - 3:25 pmALO Waterloo-LGA New York LaGuardia

8h 51m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

$464American Airlines

Mon, Oct 26 - Mon, Nov 2

5:31 am - 3:09 pmEWR Newark-ALO Waterloo

10h 38m1 stop Chicago O'Hare Intl

6:04 am - 11:00 pmALO Waterloo-EWR Newark

15h 56m1 stop Chicago O'Hare Intl

$469American Airlines

Booking Insights

Price, demand and travel trends for flights to Waterloo

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What is the cheapest flight to Waterloo?: Chicago O'Hare Intl Airport to Waterloo is the cheapest route at $204 round-trip, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.
How much is a flight to Waterloo? Average and cheapest price for all round-trip flights to Waterloo from each origin found by users searching on KAYAK in the last 12 months.: On average, a round-trip flight from the United States to Waterloo costs $507, based on KAYAK data over the past 12 months. Round-trip fares from New York average $359, while Cleveland runs a bit higher at $378.
What is the cheapest day to fly to Waterloo?: Saturday is the cheapest day to fly to Waterloo at $461 round-trip on average over the past 12 months on KAYAK. Thursday is the most expensive at $563.
What’s the cheapest month to fly to Waterloo? To calculate monthly average prices, KAYAK takes all prices for each month over the last 12 months for flights to Waterloo, removes the top 0.1% to account for outliers, then takes the median of all values for each month.: •September is the cheapest month to fly to Waterloo with an average price of $393 round-trip.
•June ($634) and July ($614) are the most expensive.

Based on KAYAK data over the past 12 months.
What is the cheapest time of day to fly to Waterloo? Average price for all round-trip flights depending on time of departure, seen by users on KAYAK in the last 12 months.: Afternoon flights to Waterloo are the cheapest at $465 round-trip on average. Night flights are the most expensive at $558.
What is a good deal for flights to Waterloo?: Flights under $398 are considered a good deal. 25% of KAYAK users found round-trip flights to Waterloo at or below these prices, with the lowest fares from:
•Cleveland $258
•Orlando $299
•New York $338.

Find deals

Low season	March
High season	November
Cheapest flight	$144

Beat the crowds with an average 51% drop in travelers.

The most popular month to fly with an average 56% increase in travelers.

One-way flight from Chicago O'Hare Intl Airport 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.

How do I know if a flight to Waterloo is a good deal?
A good deal on a flight to Waterloo is around $398 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.
How long is a nonstop flight to Waterloo?
Nonstop flights to Waterloo are available from Chicago, with a flight time of about 1h 21m.
Which city has the cheapest flights to Waterloo?
Based on fares booked in the past 5 days, the cheapest flights to Waterloo are from:
• Chicago, from $204 round-trip
• Detroit, from $389 round-trip
• New York, from $454 round-trip
What is the difference between the most popular and the most frequent airline at Waterloo?
American Airlines operates the most flights from the United States to Waterloo at 12 per week, and for this route American Airlines is also the airline most often selected by KAYAK users searching for flights from the United States to Waterloo. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.
Which airlines should I consider for flights to Waterloo?
American Airlines is the most popular airline with KAYAK users flying to Waterloo, and has the best on-time record at the destination's main airport.
How many flights serve Waterloo?
Waterloo receives 2 flights per day and 12 per week from across the world. Chicago has the most flights to Waterloo, with 12 weekly flights.

For flights to Waterloo, a good round-trip fare is around $398. If you find a fare below that, you're getting a strong deal.
If your travel dates are flexible, consider flying to Waterloo in September. Round-trip fares historically average $393, making September the cheapest month to travel based on KAYAK data from the last 12 months.
Before you book:

• Check the route's typical price range so you can spot a deal.
• Confirm baggage fees and seat-selection costs on budget carriers.
• Verify whether you need any travel documents beyond ID.
• Pick a departure airport, since your nearest may not be the cheapest origin.
Shift your departure to noon to save up to $93 per round-trip. Noon flights to Waterloo average $465 compared to $558 for evening flights.
Bag allowances vary by airline, fare type, cabin class and route. On flights to Waterloo, some airlines may include bags at no extra cost. For example, American Airlines includes a cabin bag in Economy Class. Always check the fare details before booking, since bag policies can change by ticket type.

More options for your flight to Waterloo

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Everything you should know

Cheap Flights to Waterloo

Recent round-trip flight deals to Waterloo

Recent one-way flight deals to Waterloo

Recent last minute flight deals to Waterloo

Recent direct flight deals from the United States to Waterloo

All round-trip flight deals to Waterloo

Price, demand and travel trends for flights to Waterloo

What is the cheapest flight to Waterloo?

How much is a flight to Waterloo?

What is the cheapest day to fly to Waterloo?

What’s the cheapest month to fly to Waterloo?

What is the cheapest time of day to fly to Waterloo?

What is a good deal for flights to Waterloo?

What are the most popular airlines flying to Waterloo?

Which airline offers the most nonstop flights to Waterloo?

How many direct flights to Waterloo are there each day?

How many direct flights to Waterloo are there each week?

How many long-haul flights are there to Waterloo each week?

How many cities have direct flights to Waterloo?

Key details for flights to Waterloo

Low season

High season

Cheapest flight

When to book flights to Waterloo

Your questions about flights to Waterloo, answered

Your guide to booking Waterloo flights

More options for your flight to Waterloo

Complete your trip to Waterloo with a hotel stay or car rental

Information on the airport you'll fly into in Waterloo

Cabin class types available on flights to Waterloo

Flights from local origins to Waterloo

Flights to other popular destinations

Find deals for your return flight