$89 Cheap flight deals from Allentown (ABE) to Brentwood (STL)

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This Weekend's Flight Deals from Allentown to Brentwood

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 28 - Mon, Aug 31
TTN
Mercer
STL
Lambert-St. Louis Intl.
$345 Roundtrip, found 3 days ago
$345
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Aug 28 from Mercer to Lambert-St. Louis Intl., returning Mon, Aug 31, priced at $345 found 3 days ago
Fri, Aug 28 - Mon, Aug 31
PHL
Philadelphia Intl.
STL
Lambert-St. Louis Intl.
$345 Roundtrip, found 3 days ago
$345
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Aug 28 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Aug 31, priced at $345 found 3 days ago

Airfares from $89 One Way, $178 Round Trip from Allentown to Brentwood

Prices starting at $178 for return flights and $89 for one-way flights to Brentwood were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 22 - Tue, Oct 27
PHL
Philadelphia
STL
St. Louis
$178 Roundtrip, found 4 days ago
$178
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Oct 22 from Philadelphia to St. Louis, returning Tue, Oct 27, priced at $178 found 4 days ago
Wed, Sep 16 - Mon, Sep 21
PHL
Philadelphia
STL
St. Louis
$181 Roundtrip, found 2 days ago
$181
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Sep 16 from Philadelphia to St. Louis, returning Mon, Sep 21, priced at $181 found 2 days ago
Thu, Nov 12 - Tue, Nov 17
PHL
Philadelphia
STL
St. Louis
$188 Roundtrip, found 2 days ago
$188
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Nov 12 from Philadelphia to St. Louis, returning Tue, Nov 17, priced at $188 found 2 days ago
Fri, Nov 6 - Tue, Nov 10
PHL
Philadelphia
STL
St. Louis
$189 Roundtrip, found 3 days ago
$189
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Nov 6 from Philadelphia to St. Louis, returning Tue, Nov 10, priced at $189 found 3 days ago
Sat, Oct 10 - Thu, Oct 15
TTN
Trenton
STL
St. Louis
$242 Roundtrip, found 10 hours ago
$242
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Sat, Oct 10 from Trenton to St. Louis, returning Thu, Oct 15, priced at $242 found 10 hours ago

Brentwood economy flight packages

Price found within the past 48 hours. Click for updated prices.
Lodge Of Four Seasons Golf Resort, Marina & Spa
4.0-star property

Lodge Of Four Seasons Golf Resort, Marina & Spa

7.4/10 Good! (1,271 reviews)

Sep 27 - Sep 30

3 night stay

Philadelphia (PHL) to St. Louis (STL)

American Airlines • Non-stop • Coach

St. Louis (STL) to Philadelphia (PHL)

Frontier Airlines • Non-stop • Coach
Price was $534, price is now $446 per person
$446
per person
found 10 hours ago
The pool opens at 9am, in order to reserve a Cabana you have to wait for the bartender to arrive at 11am. We sat at one for 2 hours waiting for the bartender at the main pool, made the reservation with her to then be told that it was double booked and we would have to move to the smaller, more secluded pool. This was incredibly frustrating considering we were there right at 9am to make sure we got the one we wanted to enjoy the DJ for the day by the main pool. The two morning bartenders were very apologetic and so nice, but the blond bartender that came in later had a major attitude and seemed jittery like she was on drugs. When I asked if she was ok, she became very hostile and angry. I have no clue why you would employ such a bartender. You can tell they have new owners. Roofing missing, chipped paint, and lack of upkeep really show. However, the rooms are great with balcony's overlooking the lake. My son loved their gaming room. I'll probably stay at Margaritaville next time though.

Reviewed on Aug 21, 2026

Camden on the Lake Resort & Spa
4.0-star property

Camden on the Lake Resort & Spa

9.2/10 Wonderful! (1,007 reviews)

Sep 27 - Sep 30

3 night stay

Philadelphia (PHL) to St. Louis (STL)

American Airlines • Non-stop • Coach

St. Louis (STL) to Philadelphia (PHL)

Frontier Airlines • Non-stop • Coach
Price was $725, price is now $576 per person
$576
per person
found 10 hours ago

Alhonna Resort LLC
3.0-star property

Alhonna Resort LLC

8.8/10 Excellent! (328 reviews)

Sep 27 - Sep 30

3 night stay

Philadelphia (PHL) to St. Louis (STL)

American Airlines • Non-stop • Coach

St. Louis (STL) to Philadelphia (PHL)

Frontier Airlines • Non-stop • Coach
Price was $547, price is now $464 per person
$464
per person
found 10 hours ago
Location was wonderful Pool was refreshing We had an enjoyable overnight stay

Reviewed on Aug 17, 2026

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More About Flying To Brentwood from Allentown

Route Information for Flights from Allentown to Brentwood

Origin Airport IATA Code
ABE
Destination Airport IATA Code
STL
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Allentown to Brentwood

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.