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Waterloo

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Waterloo Flights as Low as $126

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

Frontier Airlines
Thu, Aug 14 - Sat, Aug 16
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$126 Roundtrip, found 12 hours ago
$126
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, Aug 14 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 16, priced at $126 found 12 hours ago
Frontier Airlines
Thu, Sep 18 - Mon, Sep 22
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$131 Roundtrip, found 15 hours ago
$131
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Sep 22, priced at $131 found 15 hours ago
Frontier Airlines
Thu, Aug 21 - Thu, Aug 28
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$139 Roundtrip, found 1 hour ago
$139
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Aug 21 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Thu, Aug 28, priced at $139 found 1 hour ago
Delta
Thu, Oct 2 - Fri, Oct 10
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$147 Roundtrip, found 2 days ago
$147
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Oct 2 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Oct 10, priced at $147 found 2 days ago
Spirit Airlines
Sun, Aug 24 - Mon, Aug 25
PHL
Philadelphia Intl.
STL
Lambert-St. Louis Intl.
$171 Roundtrip, found 16 hours ago
$171
Roundtrip
found 16 hours ago
Select Spirit Airlines flight, departing Sun, Aug 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Aug 25, priced at $171 found 16 hours ago
American Airlines
Sat, Dec 6 - Sat, Dec 6
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$181 Roundtrip, found 1 day ago
$181
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Dec 6 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Dec 6, priced at $181 found 1 day ago
Spirit Airlines
Mon, Aug 25 - Thu, Sep 4
EWR
Newark Liberty Intl. Airport
STL
Lambert-St. Louis Intl.
$186 Roundtrip, found 14 hours ago
$186
Roundtrip
found 14 hours ago
Select Spirit Airlines flight, departing Mon, Aug 25 from Newark Liberty Intl. Airport to Lambert-St. Louis Intl., returning Thu, Sep 4, priced at $186 found 14 hours ago
United
Sat, Sep 6 - Tue, Sep 9
OMA
Eppley Field
STL
Lambert-St. Louis Intl.
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Eppley Field to Lambert-St. Louis Intl., returning Tue, Sep 9, priced at $189 found 1 day ago
Delta
Tue, Oct 14 - Tue, Oct 21
DAL
Love Field
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 6 days ago
$197
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Oct 14 from Love Field to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $197 found 6 days ago
Delta
Tue, Sep 16 - Tue, Sep 23
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$201 Roundtrip, found 2 days ago
$201
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 16 from LaGuardia to Lambert-St. Louis Intl., returning Tue, Sep 23, priced at $201 found 2 days ago
Bargain Flight
Tue, Nov 18 - Wed, Nov 19
SAT
San Antonio Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 1 day ago
$215
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Tue, Nov 18 from San Antonio Intl. to Lambert-St. Louis Intl., returning Wed, Nov 19, priced at $215 found 1 day ago
Frontier Airlines
Thu, Oct 16 - Fri, Oct 17
TTN
Mercer
STL
Lambert-St. Louis Intl.
$228 Roundtrip, found 4 days ago
$228
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Oct 16 from Mercer to Lambert-St. Louis Intl., returning Fri, Oct 17, priced at $228 found 4 days ago
Spirit Airlines
Sat, Sep 13 - Mon, Sep 29
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$250 Roundtrip, found 16 hours ago
$250
Roundtrip
found 16 hours ago
Select Spirit Airlines flight, departing Sat, Sep 13 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $250 found 16 hours ago
Frontier Airlines
Sun, Aug 24 - Sat, Aug 30
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$252 Roundtrip, found 12 hours ago
$252
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Sun, Aug 24 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sat, Aug 30, priced at $252 found 12 hours ago
Alaska Airlines
Fri, Sep 5 - Sat, Sep 20
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$296 Roundtrip, found 11 hours ago
$296
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Sep 5 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sat, Sep 20, priced at $296 found 11 hours ago
Hawaiian Airlines
Wed, Sep 10 - Sun, Sep 28
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$336 Roundtrip, found 3 days ago
$336
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, Sep 10 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sun, Sep 28, priced at $336 found 3 days 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 August, 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 15 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 Lambert-St. Louis Intl. 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 $126, 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 $126 right now, why wait?

Waterloo Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$125

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
Stay at this 4-star business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean ...
8.4/10 Very Good! (3,890 reviews)
"Love this Hyatt. It has that old school popular grand hotel feel. Ruth’s Chris is a nice plus and it’s walkable to the arch and all the sports !"

Reviewed on Jul 30, 2025

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Hyatt Regency St. Louis at The Arch
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
Stay at this 3-star business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a fitness center. Our guests praise the breakfast and the pool ...
9.4/10 Exceptional! (2,916 reviews)
"We really enjoyed our stay. The location was convenient for all our planned sightseeing, room was clean and comfortable, parking was easy. The complimentary breakfast and happy hour sets Drury Inn apart from the competition."

Reviewed on Jul 30, 2025

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Drury Plaza Hotel St. Louis at the Arch
The Arch Convention Hotel

The Arch Convention Hotel

3.5 out of 5
811 N 9th Street, St. Louis, MO
Stay at this 3.5-star business-friendly hotel in St. Louis. Enjoy free WiFi, a 24-hour fitness center, and parking (surcharge). Our guests praise the helpful ...
6.8/10 (1,004 reviews)
Good
"It was overall a good stay. Staff was nice and helpful. Elevators sound like they need renovations. Room could be slightly cleaner but overall pretty solid. Ice machine weren’t working on my floor"

Reviewed on Jul 26, 2025

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The Arch Convention Hotel
Pear Tree Inn St. Louis Near Union Station

Pear Tree Inn St. Louis Near Union Station

3 out of 5
2211 Market Street, St. Louis, MO
Stay at this 3-star business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the restaurant ...
8.8/10 Excellent! (1,521 reviews)
"It was a great trip. We were here 3 nights on a family vacation. The happy hour is a nice touch. The beds were ok. Shower was great. Staff was friendly. It was a clean, comfortable room."

Reviewed on Jul 31, 2025

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Pear Tree Inn St. Louis Near Union Station
Magnolia Hotel St. Louis, a Tribute Portfolio Hotel

Magnolia Hotel St. Louis, a Tribute Portfolio Hotel

4 out of 5
421 N 8th St, St. Louis, MO
Stay at this 4-star business-friendly hotel in St. Louis. Enjoy free WiFi, breakfast (surcharge), and room service. Our guests praise the bar and the helpful ...
8.6/10 Excellent! (1,036 reviews)
"Bed was the most comfortable of a 10 day road trip. Staff were so nice. Historic hotel, so rooms are a little small, but nicely updated. Would stay again!"

Reviewed on Jul 30, 2025

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Magnolia Hotel St. Louis, a Tribute Portfolio Hotel
21C Museum Hotel St Louis

21C Museum Hotel St Louis

4.5 out of 5
1528 Locust street, St. Louis, MO
Stay at this 4.5-star luxury hotel in St. Louis. Enjoy free WiFi, breakfast (surcharge), and room service. Our guests praise the pool and the restaurant in our ...
9/10 Wonderful! (1,278 reviews)
"Wonderful hotel. I always enjoying seeking out and finding a 21C. The vibe was inviting and creative. Beautiful works of art. Loved the pool and gym/sauna/steam room area. We will stay again."

Reviewed on Jul 29, 2025

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21C Museum Hotel St Louis
Best Western St. Louis-Kirkwood Route 66

Best Western St. Louis-Kirkwood Route 66

3.5 out of 5
1200 S Kirkwood Road, Kirkwood, MO
Stay at this 3.5-star business-friendly hotel in Kirkwood. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
8.4/10 Very Good! (1,230 reviews)
"hotel was good. one night it was loud due to a party in one of the conference rooms that spilled out into the hallway. Chilis was the restaurant connected to the hotel. Really wish they had better staff."

Reviewed on Jul 28, 2025

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Best Western St. Louis-Kirkwood Route 66
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 historic hotel in St. Louis. Enjoy free WiFi, an outdoor pool, and 7 restaurants. Our guests praise the helpful staff and the clean rooms ...
8.4/10 Very Good! (1,011 reviews)
"Great place! We're excited to plan our next trip."

Reviewed on Jul 29, 2025

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St. Louis Union Station Hotel, Curio Collection by Hilton
See all 1,119 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.