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Waterloo

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Waterloo Flights as Low as $105

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

Frontier Airlines
Sat, Jun 6 - Wed, Jun 17
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$105 Roundtrip, found 6 days ago
$105
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Jun 6 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jun 17, priced at $105 found 6 days ago
Delta
Tue, Jul 14 - Tue, Jul 14
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$114 Roundtrip, found 6 hours ago
$114
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Jul 14 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Jul 14, priced at $114 found 6 hours ago
Frontier Airlines
Tue, Aug 4 - Tue, Aug 11
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$194 Roundtrip, found 1 day ago
$194
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Aug 4 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Tue, Aug 11, priced at $194 found 1 day ago
American Airlines
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 9 hours ago
$217
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Wed, Aug 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $217 found 9 hours ago
Bargain Flight
Wed, Jun 10 - Fri, Jun 12
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$218 Roundtrip, found 9 hours ago
$218
Roundtrip
found 9 hours ago
Select Bargain Flight flight, departing Wed, Jun 10 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Jun 12, priced at $218 found 9 hours ago
Bargain Flight
Fri, Oct 30 - Tue, Nov 3
ORF
Norfolk Intl.
STL
Lambert-St. Louis Intl.
$224 Roundtrip, found 9 hours ago
$224
Roundtrip
found 9 hours ago
Select Bargain Flight flight, departing Fri, Oct 30 from Norfolk Intl. to Lambert-St. Louis Intl., returning Tue, Nov 3, priced at $224 found 9 hours ago
Frontier Airlines
Tue, Aug 18 - Tue, Aug 25
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$230 Roundtrip, found 1 day ago
$230
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Aug 18 from Logan Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $230 found 1 day ago
Bargain Flight
Tue, Jul 7 - Wed, Jul 15
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$243 Roundtrip, found 4 hours ago
$243
Roundtrip
found 4 hours ago
Select Bargain Flight flight, departing Tue, Jul 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Jul 15, priced at $243 found 4 hours ago
Frontier Airlines
Wed, Jun 10 - Mon, Jun 15
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$256 Roundtrip, found 22 hours ago
$256
Roundtrip
found 22 hours ago
Select Frontier Airlines flight, departing Wed, Jun 10 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Mon, Jun 15, priced at $256 found 22 hours ago
Frontier Airlines
Tue, Jun 2 - Fri, Jun 5
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Fri, Jun 5, priced at $263 found 1 day ago
Delta
Wed, Sep 23 - Tue, Oct 6
DAL
Love Field
STL
Lambert-St. Louis Intl.
$265 Roundtrip, found 2 days ago
$265
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep 23 from Love Field to Lambert-St. Louis Intl., returning Tue, Oct 6, priced at $265 found 2 days ago
Frontier Airlines
Tue, Jul 28 - Tue, Aug 11
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$265 Roundtrip, found 1 day ago
$265
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jul 28 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Tue, Aug 11, priced at $265 found 1 day ago
Delta
Wed, Aug 5 - Tue, Aug 25
YHZ
Stanfield Intl.
STL
Lambert-St. Louis Intl.
$299 Roundtrip, found 23 hours ago
$299
Roundtrip
found 23 hours ago
Select Delta flight, departing Wed, Aug 5 from Stanfield Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $299 found 23 hours ago
Air Canada
Wed, Aug 26 - Tue, Sep 15
YHZ
Stanfield Intl.
STL
Lambert-St. Louis Intl.
$306 Roundtrip, found 9 hours ago
$306
Roundtrip
found 9 hours ago
Select Air Canada flight, departing Wed, Aug 26 from Stanfield Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $306 found 9 hours ago
Alaska Airlines
Thu, Oct 22 - Tue, Oct 27
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$341 Roundtrip, found 1 day ago
$341
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Oct 22 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Tue, Oct 27, priced at $341 found 1 day ago
WestJet
Fri, Jun 12 - Thu, Jun 18
YHZ
Stanfield Intl.
STL
Lambert-St. Louis Intl.
$375 Roundtrip, found 2 hours ago
$375
Roundtrip
found 2 hours ago
Select WestJet flight, departing Fri, Jun 12 from Stanfield Intl. to Lambert-St. Louis Intl., returning Thu, Jun 18, priced at $375 found 2 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 June, 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 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 $105, 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 $105 right now, why wait?

Waterloo Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$104

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! (4,051 reviews)
"The staff was friendly and helpful"

Reviewed on May 27, 2026

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Hyatt Regency 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 ...
8.8/10 Excellent! (1,966 reviews)
"The free breakfast was excellent. Good food and plenty of options for everyone. The complementary drinks/sodas/nachos bar every evening was an unexpected surprise. The staff were all extremely friendly and helpful and the hot tub felt wonderful after a long day. The room was nice, but the bathroom ..."

Reviewed on May 27, 2026

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Pear Tree Inn St. Louis Near Union Station
Drury Inn & Suites St. Louis Union Station

Drury Inn & Suites 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! (1,391 reviews)
"Wonderful. Parking was safe. Room was clean and nice."

Reviewed on May 26, 2026

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Drury Inn & Suites St. Louis 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! (1,189 reviews)
"Always a great stay. Great staff. Clean rooms. Walking distance from food and entertainment. Great!"

Reviewed on May 27, 2026

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Live by Loews - St.Louis
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! (3,449 reviews)
"Super cute place worth the stay. Staff friendly and nice. Breakfast like any other places 😃. Happy hour very nice touch Bloody Mary was delicious. Pool needs to be maintained a little more but kids had a great time. The observation deck amazing clean, comfortable and definitely a great way to relax. ..."

Reviewed on May 27, 2026

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Drury Plaza Hotel St. Louis at the Arch
21C Museum Hotel St Louis

21C Museum Hotel St Louis

4.5 out of 5
1528 Locust street St. Louis MO
Book a stay at this 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! (1,858 reviews)
"The hotel is downtown, and not within walking distance of anything. The hospitality side of the hotel was LACKING....housekeeping would not make the bed, take out the trash or refill the coffee and tea. When I asked the front desk about making the bed, the response was "We don't do that unless you ..."

Reviewed on May 27, 2026

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21C Museum Hotel St Louis
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
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, breakfast (surcharge), and room service. Our guests praise the helpful staff and the ...
8.8/10 Excellent! (1,279 reviews)
"Room was nice and clean, and I felt very safe as a solo female traveler. Location is excellent."

Reviewed on May 27, 2026

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Magnolia Hotel St. Louis, a Tribute Portfolio Hotel
Hilton St. Louis at the Ballpark

Hilton St. Louis at the Ballpark

4 out of 5
1 S Broadway St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy 3 restaurants, 3 bars/lounges, and a rooftop terrace. Our guests praise the clean rooms in our ...
7.6/10 Good! (1,145 reviews)
"This was a mediocre hotel at best. Really expected more from a Hilton hotel. Bathroom in the room wasn’t clean. Shower curtain sucked. Shower head about pelted my skin fresh off my body. Valet didn’t tell us to pick up our car at a different location than when we dropped off. Our waiter at the restaurant ..."

Reviewed on May 25, 2026

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Hilton St. Louis at the Ballpark
See all 1,194 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.