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Frontenac

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Frontenac Flights as Low as $69

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

Frontier Airlines
Tue, Jun 2 - Tue, Jun 9
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$69 Roundtrip, found 5 hours ago
$69
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Tue, Jun 9, priced at $69 found 5 hours ago
Frontier Airlines
Tue, Jun 2 - Wed, Jun 10
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$70 Roundtrip, found 5 hours ago
$70
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $70 found 5 hours ago
Frontier Airlines
Thu, May 14 - Tue, May 26
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$82 Roundtrip, found 4 hours ago
$82
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, May 14 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Tue, May 26, priced at $82 found 4 hours ago
Frontier Airlines
Wed, May 20 - Mon, Jun 1
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$84 Roundtrip, found 5 hours ago
$84
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Wed, May 20 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Jun 1, priced at $84 found 5 hours ago
Frontier Airlines
Sat, Apr 25 - Sat, May 9
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$85 Roundtrip, found 4 hours ago
$85
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Apr 25 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, May 9, priced at $85 found 4 hours ago
Frontier Airlines
Wed, Apr 22 - Wed, Apr 22
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$88 Roundtrip, found 4 hours ago
$88
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, Apr 22 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Apr 22, priced at $88 found 4 hours ago
Frontier Airlines
Mon, May 4 - Fri, May 8
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$155 Roundtrip, found 5 hours ago
$155
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Mon, May 4 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Fri, May 8, priced at $155 found 5 hours ago
Frontier Airlines
Wed, May 6 - Fri, May 8
TPA
Tampa Intl.
STL
Lambert-St. Louis Intl.
$155 Roundtrip, found 12 hours ago
$155
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Wed, May 6 from Tampa Intl. to Lambert-St. Louis Intl., returning Fri, May 8, priced at $155 found 12 hours ago
Frontier Airlines
Tue, May 19 - Tue, May 26
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$155 Roundtrip, found 12 hours ago
$155
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Tue, May 19 from Orlando Intl. to Lambert-St. Louis Intl., returning Tue, May 26, priced at $155 found 12 hours ago
Frontier Airlines
Fri, Apr 10 - Wed, Apr 29
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$160 Roundtrip, found 5 hours ago
$160
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, Apr 10 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Apr 29, priced at $160 found 5 hours ago
Frontier Airlines
Thu, Apr 9 - Thu, Apr 16
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$163 Roundtrip, found 4 hours ago
$163
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Apr 9 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Thu, Apr 16, priced at $163 found 4 hours ago
Frontier Airlines
Sun, May 24 - Sun, May 31
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$181 Roundtrip, found 18 hours ago
$181
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Sun, May 24 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sun, May 31, priced at $181 found 18 hours ago
Delta
Tue, Apr 28 - Tue, May 12
DAL
Love Field
STL
Lambert-St. Louis Intl.
$191 Roundtrip, found 4 hours ago
$191
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Apr 28 from Love Field to Lambert-St. Louis Intl., returning Tue, May 12, priced at $191 found 4 hours ago
Bargain Flight
Tue, Apr 21 - Tue, Apr 28
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select Bargain Flight flight, departing Tue, Apr 21 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, Apr 28, priced at $204 found 4 hours ago
American Airlines
Tue, Apr 21 - Mon, May 4
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$207 Roundtrip, found 4 hours ago
$207
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Apr 21 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Mon, May 4, priced at $207 found 4 hours ago
Alaska Airlines
Sat, May 9 - Fri, May 15
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$535 Roundtrip, found 5 hours ago
$535
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, May 9 from Denver Intl. to Lambert-St. Louis Intl., returning Fri, May 15, priced at $535 found 5 hours ago

Cheap Flights to Frontenac

Fall in love at first flight with your vacation to Frontenac 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 Frontenac on Hotwire, and you’ll be up, up, and on a getaway in no time.

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

Frequently Asked Questions About flights to Frontenac

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Frontenac 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 Frontenac?

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 Frontenac are in June, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to Frontenac?

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 Frontenac.

What airport is best to fly into Frontenac?

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

How much are flights to Frontenac?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to Frontenac on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $69, 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 Frontenac?

The trick to saving a stack of cash on your flight to Frontenac? 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 $69 right now, why wait?

Frontenac Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$69

Last Minute Hotel Deals in Frontenac

Hilton St. Louis Frontenac

Hilton St. Louis Frontenac

4 out of 5
1335 S Lindbergh Blvd Frontenac MO
Book a stay at this business-friendly hotel in Frontenac. Enjoy free WiFi, free parking, and an outdoor pool. Our guests praise the helpful staff in our reviews. ...
8.8/10 Excellent! (1,001 reviews)
Great service, nice clean rooms, tasty restaurant & great location

Reviewed on Mar 26, 2026

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Hilton St. Louis Frontenac
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! (1,889 reviews)
Great breakfast and loved the daily happy hour!

Reviewed on Mar 25, 2026

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Pear Tree Inn St. Louis Near Union Station
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 ...
9.4/10 Exceptional! (3,346 reviews)
Perfect location for visiting the Gateway Arch and/or a Cardinals game. The happy hour and breakfast were great. Very nice staff and clean, spacious room.

Reviewed on Mar 25, 2026

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Drury Plaza Hotel St. Louis at the Arch
Clayton Plaza Hotel & Extended Stay

Clayton Plaza Hotel & Extended Stay

3.5 out of 5
7750 Carondelet Avenue 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! (3,111 reviews)
Stay was wonderful. Would definitely recommend.

Reviewed on Mar 23, 2026

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Clayton Plaza Hotel & Extended Stay
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! (1,690 reviews)
Overall a great hotel, nice location, easy valet. It was inconvenient that an elevator was down, we waited for 5 cycles to run before we were able to get to the lobby around breakfast.

Reviewed on Mar 24, 2026

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21C Museum Hotel St Louis
Hollywood Casino & Hotel St. Louis

Hollywood Casino & Hotel St. Louis

3.5 out of 5
777 Casino Center Drive Maryland Heights MO
Book a stay at this business-friendly hotel in Maryland Heights. Enjoy free parking, 7 restaurants, and a casino. Our guests praise the helpful staff and the ...
8.4/10 Very Good! (2,201 reviews)
Great hotel for the hockey tournament... very nice staff... great location. The air quality was poor nearing the casino and awful inside... otherwise a great stay

Reviewed on Mar 21, 2026

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Hollywood Casino & Hotel St. Louis
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 ...
8.4/10 Very Good! (3,980 reviews)
Clean, friendly staff.

Reviewed on Mar 25, 2026

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Hyatt Regency St. Louis at The Arch
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! (1,347 reviews)
We had an amazing stay. The hotel was under construction, but staff were very understanding and helpful with all concerns.

Reviewed on Mar 26, 2026

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Drury Inn & Suites St. Louis Union Station
See all 1,866 properties in Frontenac
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.

Top Hotels With Free Airport Shuttle

Hilton St. Louis Frontenac

Hilton St. Louis Frontenac

4 out of 5
1335 S Lindbergh Blvd Frontenac MO
Book a stay at this business-friendly hotel in Frontenac. Enjoy free WiFi, free parking, and an outdoor pool. Our guests praise the helpful staff in our reviews. ...
8.8/10 Excellent! (1,001 reviews)
Great service, nice clean rooms, tasty restaurant & great location

Reviewed on Mar 26, 2026

Get rates
Hilton St. Louis Frontenac
See all 1,866 properties in Frontenac
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.