$88 Cheap flight deals from St. Louis (STL) to Allentown (ABE)

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This Weekend's Flight Deals from St. Louis to Allentown

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.

Sat, Dec 20 - Sun, Dec 28
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$365 Roundtrip, found 15 hours ago
$365
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Sat, Dec 20 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Sun, Dec 28, priced at $365 found 15 hours ago
Sat, Dec 20 - Thu, Jan 1
STL
Lambert-St. Louis Intl.
TTN
Mercer
$427 Roundtrip, found 2 days ago
$427
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Dec 20 from Lambert-St. Louis Intl. to Mercer, returning Thu, Jan 1, priced at $427 found 2 days ago

Airfares from $88 One Way, $130 Round Trip from St. Louis to Allentown

Prices starting at $130 for return flights and $88 for one-way flights to Allentown were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 23 - Fri, Jan 30
STL
St. Louis
PHL
Philadelphia
$130 Roundtrip, found 6 days ago
$130
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Jan 23 from St. Louis to Philadelphia, returning Fri, Jan 30, priced at $130 found 6 days ago
Sat, Feb 21 - Mon, Feb 23
STL
St. Louis
PHL
Philadelphia
$145 Roundtrip, found 1 day ago
$145
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Feb 21 from St. Louis to Philadelphia, returning Mon, Feb 23, priced at $145 found 1 day ago
Wed, Feb 18 - Sat, Feb 21
STL
St. Louis
PHL
Philadelphia
$162 Roundtrip, found 5 days ago
$162
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Wed, Feb 18 from St. Louis to Philadelphia, returning Sat, Feb 21, priced at $162 found 5 days ago
Mon, Jan 12 - Thu, Jan 15
STL
St. Louis
TTN
Trenton
$176 Roundtrip, found 2 days ago
$176
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Jan 12 from St. Louis to Trenton, returning Thu, Jan 15, priced at $176 found 2 days ago
Wed, Oct 14 - Wed, Oct 21
STL
St. Louis
ABE
Allentown
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 14 from St. Louis to Allentown, returning Wed, Oct 21, priced at $269 found 1 day ago

Allentown economy flight packages

Price found within the past 48 hours. Click for updated prices.
Quality Inn
2.5-star property

Quality Inn

7.4/10 Good! (1,002 reviews)

Jan 18 - Jan 23

5 night stay

St. Louis (STL) to Philadelphia (PHL)

American Airlines • Non-stop • Coach

Philadelphia (PHL) to St. Louis (STL)

Frontier Airlines • Non-stop • Coach
Price was $507, price is now $426 per person
$426
per person
found 21 hours ago
The woman at the desk who checked me in was extremely helpful and friendly.

Reviewed on Apr 3, 2025

Chateau Renault
4.0-star property

Chateau Renault

8.8/10 Excellent! (335 reviews)

Feb 13 - Feb 15

2 night stay

St. Louis (STL) to Philadelphia (PHL)

American Airlines • Non-stop roundtrip • Coach
Price was $921, price is now $786 per person
$786
per person
found 1 day ago
Patio doors could not be locked. The room had no Safe to store your valuables.

Reviewed on Jun 17, 2023

Surrey Beach House
2.0-star property

Surrey Beach House

9.8/10 Exceptional! (44 reviews)

Feb 13 - Feb 15

2 night stay

St. Louis (STL) to Philadelphia (PHL)

American Airlines • Non-stop roundtrip • Coach
Price was $841, price is now $768 per person
$768
per person
found 1 day ago
Very unique stay. An updated, clean property with fantastic access to the beach and boardwalk. No staff on site, but none were needed! Individual access via keypad for lobby and room access. New furnishings and decor make it a great place. It’s quiet with only 15 rooms. Plenty of Starbucks coffee for the in-room Keurig was a bonus! However, lack of beach towels, access to drinking water (vending machine was out) and lack of parking were negatives. Once you find a spot you hate to leave it for fear we won’t get one later. There aren’t any dining options within walking distance so we Ubered everywhere. Despite this, we would stay again.

Reviewed on Aug 25, 2025

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More About Flying To Allentown from St. Louis

Route Information for Flights from St. Louis to Allentown

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

St. Louis to Allentown

When you’re searching for St. Louis to Allentown flights for your family vacation, check out the guaranteed low prices at Orbitz. If you are looking for the best prices on hotels too, you’ll be sure to find great deals to suit your budget. You’ll also benefit from the following features:

Suitable Schedules

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Mobile Apps

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Flight Alerts

Orbitz won’t leave you wondering whether your flight will take off on time. We can send you free alerts about your flights from St. Louis to Allentown to your mobile phone and email. Whether your flights from St. Louis to Allentown are running just a few minutes to a few hours late, we will let you know.

Miles and Points

If you travel regularly, you can still earn miles and points when you book qualifying St. Louis to Allentown flights. Enter your frequent flyer number with your reservation to see the miles rack up.

Frequently asked questions

Are there non-stop flights from St. Louis to Allentown?
Yes, you'll be happy to hear that you can jet straight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to PHL. Direct flights are offered by American Airlines and Southwest Airlines.
What is the shortest flight from St. Louis to Allentown?
The trip from St. Louis to Allentown can be as quick as 2 hours and 50 minutes. With an easy flight time like this, why not round up some friends and take off on an impulsive getaway?
What airlines fly from St. Louis to Allentown most frequently?
The carriers that fly frequently between Lambert Field and PHL include American Airlines (AA). This well-known option offers 86 flights on the route each month. Also explore the rewarding deals from Southwest Airlines (WN). Offering 30 flights every month between St. Louis and Allentown, they make the journey just as good as the destination.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

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.