$60 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.

Fri, Jun 20 - Mon, Jun 23
STL
Lambert-St. Louis Intl.
ABE
Lehigh Valley Intl.
$362 Roundtrip, found 20 hours ago
$362
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Fri, Jun 20 from Lambert-St. Louis Intl. to Lehigh Valley Intl., returning Mon, Jun 23, priced at $362 found 20 hours ago
Sat, Jun 21 - Sun, Jun 22
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$425 Roundtrip, found 7 hours ago
$425
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Jun 21 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Sun, Jun 22, priced at $425 found 7 hours ago
Sun, Jun 22 - Thu, Jul 3
STL
Lambert-St. Louis Intl.
TTN
Mercer
$627 Roundtrip, found 5 days ago
$627
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Jun 22 from Lambert-St. Louis Intl. to Mercer, returning Thu, Jul 3, priced at $627 found 5 days ago

Airfares from $60 One Way, $159 Round Trip from St. Louis to Allentown

Prices starting at $159 for return flights and $60 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.

Mon, Jul 21 - Thu, Jul 24
STL
St. Louis
PHL
Philadelphia
$159 Roundtrip, found 13 hours ago
$159
Roundtrip
found 13 hours ago
Select Spirit Airlines flight, departing Mon, Jul 21 from St. Louis to Philadelphia, returning Thu, Jul 24, priced at $159 found 13 hours ago
Thu, Jul 10 - Thu, Jul 17
STL
St. Louis
PHL
Philadelphia
$159 Roundtrip, found 4 days ago
$159
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Thu, Jul 10 from St. Louis to Philadelphia, returning Thu, Jul 17, priced at $159 found 4 days ago
Mon, Aug 18 - Mon, Aug 25
STL
St. Louis
PHL
Philadelphia
$191 Roundtrip, found 2 days ago
$191
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Aug 18 from St. Louis to Philadelphia, returning Mon, Aug 25, priced at $191 found 2 days ago
Mon, Aug 18 - Mon, Aug 25
STL
St. Louis
PHL
Philadelphia
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Mon, Aug 18 from St. Louis to Philadelphia, returning Mon, Aug 25, priced at $197 found 2 days ago
Wed, Jul 9 - Sat, Jul 12
STL
St. Louis
PHL
Philadelphia
$214 Roundtrip, found 1 hour ago
$214
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Jul 9 from St. Louis to Philadelphia, returning Sat, Jul 12, priced at $214 found 1 hour ago

Allentown economy flight packages

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

Quality Inn Center City

7.8/10 Good! (311 reviews)

Jul 21 - Jul 24

3 night stay

St. Louis (STL) to Philadelphia (PHL)

American Airlines • Coach

Philadelphia (PHL) to St. Louis (STL)

Spirit Airlines • Coach
per person
found 13 hours ago
Just what we wanted as far as convenient location and price. Lots of close places to eat. Staff tried hard to be helpful; maybe the front desk could have basic travel, train, (SEPTA) and Amtrak info handy. Was very helpful to be able to store bags after checkout. Room was small but very satisfactory for our needs. Managementmentioned more upgrades coming.

Reviewed on May 10, 2025

Sosuite 1BR Apt w W/d, Gym, On-site Restaurant
2.0-star property

Sosuite 1BR Apt w W/d, Gym, On-site Restaurant

No reviews

Jul 21 - Jul 24

3 night stay

St. Louis (STL) to Philadelphia (PHL)

American Airlines • Coach

Philadelphia (PHL) to St. Louis (STL)

Spirit Airlines • Coach
per person
found 13 hours ago
The Warwick Hotel Rittenhouse Square Philadelphia
4.0-star property

The Warwick Hotel Rittenhouse Square Philadelphia

7.8/10 Good! (1,574 reviews)

Jul 21 - Jul 24

3 night stay

St. Louis (STL) to Philadelphia (PHL)

American Airlines • Coach

Philadelphia (PHL) to St. Louis (STL)

Spirit Airlines • Coach
per person
found 13 hours ago
AN OVERALL ABOVE AVERAGE HOTEL.

Reviewed on Oct 3, 2024

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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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Flight Alerts

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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.

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.