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Waterloo

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Waterloo Flights as Low as $63

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

Frontier Airlines
Wed, Jul 8 - Wed, Jul 15
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$63 Roundtrip, found 1 day ago
$63
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Jul 8 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jul 15, priced at $63 found 1 day ago
Frontier Airlines
Wed, Jul 8 - Fri, Jul 17
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$73 Roundtrip, found 1 day ago
$73
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Jul 8 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Jul 17, priced at $73 found 1 day ago
Frontier Airlines
Thu, Aug 13 - Thu, Aug 20
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$76 Roundtrip, found 1 hour ago
$76
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Aug 13 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $76 found 1 hour ago
Frontier Airlines
Mon, Aug 10 - Thu, Aug 20
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$78 Roundtrip, found 1 day ago
$78
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Aug 10 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $78 found 1 day ago
Frontier Airlines
Sat, Jul 11 - Wed, Jul 15
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$84 Roundtrip, found 1 day ago
$84
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jul 11 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jul 15, priced at $84 found 1 day ago
Delta
Tue, Sep 1 - Tue, Sep 15
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$117 Roundtrip, found 7 hours ago
$117
Roundtrip
found 7 hours ago
Select Delta flight, departing Tue, Sep 1 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $117 found 7 hours ago
Frontier Airlines
Wed, Jul 15 - Sat, Jul 18
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$119 Roundtrip, found 10 hours ago
$119
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Wed, Jul 15 from Orlando Intl. to Lambert-St. Louis Intl., returning Sat, Jul 18, priced at $119 found 10 hours ago
American Airlines
Wed, Jul 29 - Tue, Aug 4
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$120 Roundtrip, found 12 hours ago
$120
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Jul 29 from O'Hare Intl. to Lambert-St. Louis Intl., returning Tue, Aug 4, priced at $120 found 12 hours ago
United
Tue, Jul 28 - Wed, Jul 29
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$120 Roundtrip, found 6 hours ago
$120
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Jul 28 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, Jul 29, priced at $120 found 6 hours ago
Bargain Flight
Wed, Sep 9 - Tue, Sep 15
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$216 Roundtrip, found 3 days ago
$216
Roundtrip
found 3 days 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 3 days ago
Frontier Airlines
Tue, Aug 11 - Tue, Aug 25
FLL
Fort Lauderdale - Hollywood Intl.
STL
Lambert-St. Louis Intl.
$222 Roundtrip, found 15 hours ago
$222
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Fort Lauderdale - Hollywood Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $222 found 15 hours ago
Frontier Airlines
Wed, Aug 5 - Tue, Aug 18
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$226 Roundtrip, found 1 day ago
$226
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Aug 5 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Tue, Aug 18, priced at $226 found 1 day ago
Delta
Wed, Oct 14 - Wed, Oct 14
DAL
Love Field
STL
Lambert-St. Louis Intl.
$257 Roundtrip, found 12 hours ago
$257
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, Oct 14 from Love Field to Lambert-St. Louis Intl., returning Wed, Oct 14, priced at $257 found 12 hours ago
Frontier Airlines
Thu, Sep 10 - Mon, Sep 14
RDU
Raleigh - Durham Intl.
STL
Lambert-St. Louis Intl.
$258 Roundtrip, just found
$258
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 10 from Raleigh - Durham Intl. to Lambert-St. Louis Intl., returning Mon, Sep 14, priced at $258 just found
Frontier Airlines
Thu, Aug 13 - Tue, Aug 25
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Aug 13 from Logan Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $268 found 1 day ago
Delta
Tue, Jul 21 - Wed, Jul 29
JAN
Evers Intl.
STL
Lambert-St. Louis Intl.
$279 Roundtrip, found 11 hours ago
$279
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Jul 21 from Evers Intl. to Lambert-St. Louis Intl., returning Wed, Jul 29, priced at $279 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 July, 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 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 $63, 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 $63 right now, why wait?

Waterloo Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$62

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! (4,154 reviews)
"Great room!"

Reviewed on Jun 26, 2026

Get rates
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
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! (3,520 reviews)
"Clean rooms, good breakfast, friendly staff"

Reviewed on Jun 27, 2026

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Drury Plaza Hotel 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! (1,618 reviews)
"The area has homeless people and random people asking for the password to get into the hotel….floors were wet so much my feet were black. Did not feel safe."

Reviewed on Jun 27, 2026

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Forest Park Hotel by MDR
Hampton Inn St. Louis-Downtown (At the Gateway Arch)

Hampton Inn St. Louis-Downtown (At the Gateway Arch)

3.5 out of 5
333 Washington Ave St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and ...
8.8/10 Excellent! (1,307 reviews)
"The hotel was clean, though it was beginning to show some signs of wear and tear in a few areas. The hospitality was outstanding and exactly what I’d expect in the South, with the staff going above and beyond to make us feel welcome and well taken care of. The staff in charge of breakfast we hands ..."

Reviewed on Jun 25, 2026

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Hampton Inn St. Louis-Downtown (At the Gateway Arch)
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! (1,636 reviews)
"Fantastic property"

Reviewed on Jun 26, 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! (1,436 reviews)
"Great breakfast!! Had a restaurant, Lombardo’s, downstairs. Did not get a chance to eat there but the food smelled good!!! Nice pool, jacuzzi, and fitness room! Would definitely stay there again!!"

Reviewed on Jun 26, 2026

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Drury Plaza Hotel St. Louis Union Station
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
Book a stay at this 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! (2,030 reviews)
"This property needs some major updates. It is old and dirty. The toilet in the room didn't work correctly. The only employee that was helpful was the friendly lady at the front desk. I wish I had caught her name she deserves recognition! All the other employees looked as if they hated their job and ..."

Reviewed on Jun 26, 2026

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Pear Tree Inn St. Louis Near Union Station
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! (1,218 reviews)
"The shower curtain hooks were not working. We tried to rehook them properly, but they didn’t work. Water sprayed all over the floor creating a dangerous situation."

Reviewed on Jun 27, 2026

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Live by Loews - St.Louis
See all 1,239 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.