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Waterloo

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Waterloo Flights as Low as $38

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

Frontier Airlines
Wed, Oct 28 - Wed, Nov 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$38 Roundtrip, found 7 hours ago
$38
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Wed, Oct 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Nov 4, priced at $38 found 7 hours ago
Frontier Airlines
Wed, Sep 16 - Wed, Sep 30
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$78 Roundtrip, found 10 hours ago
$78
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Wed, Sep 16 from Denver Intl. to Lambert-St. Louis Intl., returning Wed, Sep 30, priced at $78 found 10 hours ago
Allegiant Air
Fri, Oct 2 - Mon, Oct 5
FLL
Fort Lauderdale - Hollywood Intl.
BLV
MidAmerica-St. Louis
$78 Roundtrip, found 4 days ago
$78
Roundtrip
found 4 days ago
Select Allegiant Air flight, departing Fri, Oct 2 from Fort Lauderdale - Hollywood Intl. to MidAmerica-St. Louis, returning Mon, Oct 5, priced at $78 found 4 days ago
Delta
Sat, Dec 5 - Sat, Dec 5
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$112 Roundtrip, just found
$112
Roundtrip
just found
Select Delta flight, departing Sat, Dec 5 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Dec 5, priced at $112 just found
Southwest Airlines
Wed, Oct 28 - Wed, Nov 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$117 Roundtrip, found 7 hours ago
$117
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Wed, Oct 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Nov 4, priced at $117 found 7 hours ago
Southwest Airlines
Sat, Sep 19 - Tue, Oct 6
BNA
Nashville Intl.
STL
Lambert-St. Louis Intl.
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Sat, Sep 19 from Nashville Intl. to Lambert-St. Louis Intl., returning Tue, Oct 6, priced at $119 found 1 day ago
Frontier Airlines
Thu, Oct 29 - Mon, Nov 16
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 29 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Mon, Nov 16, priced at $148 just found
American Airlines
Wed, Oct 28 - Mon, Nov 2
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$159 Roundtrip, found 3 hours ago
$159
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Oct 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Nov 2, priced at $159 found 3 hours ago
United
Tue, Oct 27 - Thu, Oct 29
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$170 Roundtrip, found 20 hours ago
$170
Roundtrip
found 20 hours ago
Select United flight, departing Tue, Oct 27 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Thu, Oct 29, priced at $170 found 20 hours ago
Southern Airways Express
Tue, Sep 15 - Sun, Oct 4
BNA
Nashville Intl.
STL
Lambert-St. Louis Intl.
$172 Roundtrip, found 5 days ago
$172
Roundtrip
found 5 days ago
Select Southern Airways Express flight, departing Tue, Sep 15 from Nashville Intl. to Lambert-St. Louis Intl., returning Sun, Oct 4, priced at $172 found 5 days ago
Frontier Airlines
Mon, Nov 2 - Sat, Nov 7
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$176 Roundtrip, found 16 hours ago
$176
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Mon, Nov 2 from Orlando Intl. to Lambert-St. Louis Intl., returning Sat, Nov 7, priced at $176 found 16 hours ago
Frontier Airlines
Mon, Oct 5 - Wed, Oct 7
FLL
Fort Lauderdale - Hollywood Intl.
STL
Lambert-St. Louis Intl.
$211 Roundtrip, found 9 hours ago
$211
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Mon, Oct 5 from Fort Lauderdale - Hollywood Intl. to Lambert-St. Louis Intl., returning Wed, Oct 7, priced at $211 found 9 hours ago
Frontier Airlines
Wed, Sep 23 - Mon, Sep 28
TPA
Tampa Intl.
STL
Lambert-St. Louis Intl.
$211 Roundtrip, found 9 hours ago
$211
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Wed, Sep 23 from Tampa Intl. to Lambert-St. Louis Intl., returning Mon, Sep 28, priced at $211 found 9 hours ago
Bargain Flight
Fri, Oct 2 - Mon, Oct 5
GRR
Gerald R. Ford Intl.
STL
Lambert-St. Louis Intl.
$222 Roundtrip, found 8 hours ago
$222
Roundtrip
found 8 hours ago
Select Bargain Flight flight, departing Fri, Oct 2 from Gerald R. Ford Intl. to Lambert-St. Louis Intl., returning Mon, Oct 5, priced at $222 found 8 hours ago
Southwest Airlines
Thu, Oct 29 - Mon, Nov 16
DAL
Love Field
STL
Lambert-St. Louis Intl.
$237 Roundtrip, just found
$237
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Oct 29 from Love Field to Lambert-St. Louis Intl., returning Mon, Nov 16, priced at $237 just found
Bargain Flight
Wed, Sep 9 - Thu, Sep 10
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$296 Roundtrip, found 3 hours ago
$296
Roundtrip
found 3 hours ago
Select Bargain Flight flight, departing Wed, Sep 9 from Logan Intl. to Lambert-St. Louis Intl., returning Thu, Sep 10, priced at $296 found 3 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 October, 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 14 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 $38, 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 $38 right now, why wait?

Waterloo Flight Information
Destination airport
MidAmerica-St. Louis
Destination airport IATA code
BLV
Roundtrip price
$99

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! (4,182 reviews)
"The guy who works at guess service when we check in Monday the 24 was very friendly and very helpful giving great recommendations. And the girl who checked us in Morgane was extremely friendly a very nice greeting but the black girl who checked us out on the 27 was not pleasant at all it was like ..."

Reviewed on Aug 28, 2026

Get rates
Hyatt Regency 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 ...
8.8/10 Excellent! (1,136 reviews)
"Really unusual decor and a very fun stay. Location was good and parking was easy in the lot. Staff were not always easy to find though."

Reviewed on Aug 28, 2026

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Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
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 ...
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Drury Plaza Hotel St. Louis at the Arch
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 ...
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Pear Tree Inn St. Louis Near Union Station
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! (1,647 reviews)
"The road noise from Interstate 44 made it hard to sleep."

Reviewed on Aug 27, 2026

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Forest Park Hotel by MDR
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! (1,310 reviews)
"Close to Busch Stadium"

Reviewed on Aug 28, 2026

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Live by Loews - St.Louis
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! (1,514 reviews)
"Daily breakfast was great and evening appetizers and drinks were a great benefit. Hotel was quiet and location made it easy to get to attractions."

Reviewed on Aug 28, 2026

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Drury Plaza Hotel St. Louis Union Station
Home2 Suites by Hilton St. Louis Downtown

Home2 Suites by Hilton St. Louis Downtown

3 out of 5
1221 Locus Street St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, valet parking (surcharge), and a 24-hour front desk. Our guests praise the helpful ...
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Home2 Suites by Hilton St. Louis Downtown
See all 1,271 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.