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Waterloo

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Waterloo Flights as Low as $214

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Frontier Airlines
Sat, Nov 7 - Mon, Nov 16
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$214 Roundtrip, found 7 hours ago
$214
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Nov 7 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Mon, Nov 16, priced at $214 found 7 hours ago
Frontier Airlines
Tue, Sep 1 - Tue, Sep 15
TPA
Tampa Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 13 hours ago
$215
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Tampa Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $215 found 13 hours ago
Bargain Flight
Wed, Sep 9 - Tue, Sep 15
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$216 Roundtrip, found 11 hours ago
$216
Roundtrip
found 11 hours ago
Select Bargain Flight flight, departing Wed, Sep 9 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $216 found 11 hours ago
Frontier Airlines
Mon, Aug 17 - Sun, Aug 30
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 3 days ago
$217
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Aug 17 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sun, Aug 30, priced at $217 found 3 days ago
Frontier Airlines
Tue, Nov 10 - Sat, Nov 14
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$218 Roundtrip, found 7 hours ago
$218
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Tue, Nov 10 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sat, Nov 14, priced at $218 found 7 hours ago
Frontier Airlines
Wed, Aug 26 - Sat, Sep 12
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$219 Roundtrip, found 3 days ago
$219
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, Aug 26 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sat, Sep 12, priced at $219 found 3 days ago
Frontier Airlines
Mon, Aug 24 - Sat, Sep 5
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$221 Roundtrip, found 3 days ago
$221
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Aug 24 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sat, Sep 5, priced at $221 found 3 days ago
Frontier Airlines
Thu, Jul 30 - Mon, Aug 10
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$222 Roundtrip, found 3 days ago
$222
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Jul 30 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Mon, Aug 10, priced at $222 found 3 days ago
Delta
Wed, Sep 9 - Tue, Sep 15
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$224 Roundtrip, found 11 hours ago
$224
Roundtrip
found 11 hours ago
Select Delta flight, departing Wed, Sep 9 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $224 found 11 hours ago
Frontier Airlines
Thu, Jul 30 - Wed, Aug 19
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$224 Roundtrip, found 3 days ago
$224
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Jul 30 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Wed, Aug 19, priced at $224 found 3 days ago
Delta
Wed, Aug 5 - Mon, Aug 10
GRR
Gerald R. Ford Intl.
STL
Lambert-St. Louis Intl.
$230 Roundtrip, found 1 day ago
$230
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 5 from Gerald R. Ford Intl. to Lambert-St. Louis Intl., returning Mon, Aug 10, priced at $230 found 1 day ago
American Airlines
Wed, Sep 9 - Tue, Sep 15
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$234 Roundtrip, found 11 hours ago
$234
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, Sep 9 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $234 found 11 hours ago
Bargain Flight
Wed, Jul 29 - Wed, Aug 5
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$235 Roundtrip, found 4 days ago
$235
Roundtrip
found 4 days ago
Select Bargain Flight flight, departing Wed, Jul 29 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Wed, Aug 5, priced at $235 found 4 days ago
Bargain Flight
Tue, Jul 14 - Tue, Jul 21
SAN
San Diego Intl.
STL
Lambert-St. Louis Intl.
$273 Roundtrip, found 6 days ago
$273
Roundtrip
found 6 days ago
Select Bargain Flight flight, departing Tue, Jul 14 from San Diego Intl. to Lambert-St. Louis Intl., returning Tue, Jul 21, priced at $273 found 6 days ago
Frontier Airlines
Sat, Aug 22 - Sat, Sep 5
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$281 Roundtrip, found 9 hours ago
$281
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Sat, Aug 22 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Sat, Sep 5, priced at $281 found 9 hours ago
Alaska Airlines
Wed, Dec 2 - Thu, Dec 3
SAN
San Diego Intl.
STL
Lambert-St. Louis Intl.
$297 Roundtrip, found 11 hours ago
$297
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Wed, Dec 2 from San Diego Intl. to Lambert-St. Louis Intl., returning Thu, Dec 3, priced at $297 found 11 hours ago

Cheap Flights to Waterloo

Fall in love at first flight with your vacation to Waterloo by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to Waterloo on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in Waterloo, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to Waterloo

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Waterloo with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the STL airport.

What is the cheapest month to fly to Waterloo?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to Waterloo are in November, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to Waterloo?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 13 to choose from for your flight to Waterloo.

What airport is best to fly into Waterloo?

When you’re planning your trip to Waterloo, convenience is the name of the game. Luckily, Waterloo MidAmerica-St. Louis Airport is nearby so you can deplane and get going on checking off everything on your Waterloo must-do list.

How much are flights to Waterloo?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to Waterloo on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $214, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to Waterloo?

The trick to saving a stack of cash on your flight to Waterloo? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $214 right now, why wait?

Waterloo Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$214

Last Minute Hotel Deals in Waterloo

Hyatt Regency St. Louis at The Arch

Hyatt Regency St. Louis at The Arch

4 out of 5
315 Chestnut St St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean ...
8.6/10 Excellent! (4,219 reviews)
"Clean rooms, nice bar area, friendly staff"

Reviewed on Jul 12, 2026

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Hyatt Regency St. Louis at The Arch
Forest Park Hotel by MDR

Forest Park Hotel by MDR

3 out of 5
5915 Wilson Ave St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, free parking, and an outdoor pool. Our guests praise the helpful staff and the clean ...
7.4/10 Good! (1,641 reviews)
"Nice staff"

Reviewed on Jul 11, 2026

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Forest Park Hotel by MDR
Drury Plaza Hotel St. Louis at the Arch

Drury Plaza Hotel St. Louis at the Arch

3 out of 5
2 South 4th Street St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and 2 hot tubs. Our guests praise the breakfast and the pool in our ...
9.6/10 Exceptional! (3,576 reviews)
"We were very surprised about the evening buffet and free drinks! We knew there was “evening snacks and drinks,” but did not realize that it was a free full meal plus we each got two free drinks! We will definitely be staying at Drury Inn again!"

Reviewed on Jul 12, 2026

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Drury Plaza Hotel St. Louis at the Arch
Angad Arts Hotel St. Louis, Tapestry Collection by Hilton

Angad Arts Hotel St. Louis, Tapestry Collection by Hilton

4 out of 5
3550 Samuel Sheppard Drive St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, a rooftop terrace, and breakfast (surcharge). Our guests praise the helpful staff ...
9/10 Wonderful! (1,078 reviews)
"Cleanliness and functional amenities was an issue. Also, the room was not ready when we arrived at 6 pm."

Reviewed on Jul 11, 2026

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Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
Live by Loews - St.Louis

Live by Loews - St.Louis

4 out of 5
799 Clark ave St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, a rooftop terrace, and breakfast (surcharge). Our guests praise the bar and the helpful ...
9.4/10 Exceptional! (1,243 reviews)
"What a great place to stay for a game! You can’t get any closer to the stadium. From the time we arrived to the time we left, everything was great! The parking is easy, garage or outside lot. The staff are super friendly. The rooms were clean and bed was comfy! Breakfast was delicious at the onsite ..."

Reviewed on Jul 12, 2026

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Live by Loews - St.Louis
River City Casino & Hotel

River City Casino & Hotel

4 out of 5
777 River City Casino Blvd St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free parking, 5 restaurants, and a casino. Our guests praise the helpful staff and the clean ...
9.2/10 Wonderful! (1,661 reviews)
"The staff was friendly and courteous. The only real issue was the room next door had an alarm clock that went off from 530 a m to 8 00. The maintenance guy finally got the people next door to shut it off."

Reviewed on Jul 10, 2026

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River City Casino & Hotel
Drury Plaza Hotel St. Louis Union Station

Drury Plaza Hotel St. Louis Union Station

3 out of 5
201 S 20th St St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a fitness center. Our guests praise the breakfast and the helpful ...
9.4/10 Exceptional! (1,460 reviews)
"Rooms were really nice and staff was super helpful and very friendly!"

Reviewed on Jul 11, 2026

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Drury Plaza Hotel St. Louis Union Station
St. Louis Union Station Hotel, Curio Collection by Hilton

St. Louis Union Station Hotel, Curio Collection by Hilton

4 out of 5
1820 Market Street St. Louis MO
Book a stay at this luxury hotel in St. Louis. Enjoy free WiFi, an outdoor pool, and 7 restaurants. Our guests praise the helpful staff and the clean rooms in ...
8.8/10 Excellent! (1,011 reviews)
"So easy with teens"

Reviewed on Jul 12, 2026

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St. Louis Union Station Hotel, Curio Collection by Hilton
See all 1,270 properties in Waterloo
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.