ABE - STL

$156 Find Cheap Flights from Allentown to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Allentown to St. Louis departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$250
Typical prices: $379-$273
Multiple Airlines
Fri 6/5Mon 6/8
ABE - STL • 1 stop
Cheapest one-way
$156
Multiple Airlines
Thu 5/14
ABE - STL • 1 stop
Top airlines
Cheapest • from $277 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Allentown and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $284 (round-trip)
Shortest trip • 5h 28m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Allentown to St. Louis (ABE-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Allentown to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Allentown to St. Louis

Fri, Jun 5 - Mon, Jun 8
Multiple Airlines Logo
6:20 am - 11:57 pm
ABE
-
STL
18h 37m
1 stop
Multiple Airlines Logo
4:19 pm - 9:29 am
STL
-
ABE
16h 10m
1 stop
$250Multiple Airlines
Thu, May 28 - Thu, Jun 4
Multiple Airlines Logo
6:00 am - 11:57 pm
ABE
-
STL
18h 57m
1 stop
Multiple Airlines Logo
4:19 pm - 7:57 pm
STL
-
ABE
26h 38m
1 stop
$258Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Delta Logo
6:30 am - 12:53 pm
ABE
-
STL
7h 23m
1 stop
Delta Logo
6:00 am - 12:08 pm
STL
-
ABE
5h 08m
1 stop
$277Delta
Fri, Jun 5 - Mon, Jun 8
Multiple Airlines Logo
4:39 pm - 8:55 am
ABE
-
STL
17h 16m
2 stops
Multiple Airlines Logo
4:19 pm - 9:29 am
STL
-
ABE
16h 10m
1 stop
$284Multiple Airlines
Thu, May 28 - Thu, Jun 4
Multiple Airlines Logo
6:00 am - 11:57 pm
ABE
-
STL
18h 57m
1 stop
Multiple Airlines Logo
6:33 pm - 7:57 pm
STL
-
ABE
24h 24m
2 stops
$285Multiple Airlines
Sun, Aug 30 - Sun, Sep 6
United Airlines Logo
6:15 am - 12:13 pm
ABE
-
STL
6h 58m
1 stop
United Airlines Logo
6:00 am - 1:42 pm
STL
-
ABE
6h 42m
1 stop
$309United Airlines
Tue, May 26 - Wed, Jul 15
Delta Logo
6:15 pm - 11:59 pm
ABE
-
STL
6h 44m
1 stop
Delta Logo
6:00 am - 12:22 pm
STL
-
ABE
5h 22m
1 stop
$310Delta
Tue, May 19 - Wed, May 27
Delta Logo
6:27 am - 12:22 pm
ABE
-
STL
6h 55m
1 stop
Delta Logo
6:00 am - 12:19 pm
STL
-
ABE
5h 19m
1 stop
$311Delta
Sun, Jun 7 - Wed, Jun 10
Multiple Airlines Logo
12:29 pm - 6:36 pm
ABE
-
STL
7h 07m
2 stops
Multiple Airlines Logo
4:17 pm - 1:56 pm
STL
-
ABE
20h 39m
1 stop
$313Multiple Airlines
Sat, Sep 5 - Sat, Sep 12
Delta Logo
1:00 pm - 6:02 pm
ABE
-
STL
6h 02m
1 stop
Delta Logo
6:00 am - 12:08 pm
STL
-
ABE
5h 08m
1 stop
$323Delta
Booking Insights

KAYAK's insights & trends for Allentown to St. Louis flights

Get data-powered insights and trends into flights from Allentown to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Allentown to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Allentown to St. Louis departing in June.

What is the cheapest month to fly from Allentown to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Allentown to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Allentown to St. Louis is September, where tickets cost $282 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $518 and $438 respectively.

Good to know

Low seasonDecember
Cheapest flight$156
Best time to beat the crowds but there is an average 43% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Allentown to St. Louis

When to book flights from Allentown to St. Louis

Are your dates flexible? Find out the best times to travel from Allentown to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Allentown to St. Louis

  • What is the cheapest flight from Allentown to St. Louis?

    In the last 3 days, the lowest price for a flight from Allentown to St. Louis was $156 for a one-way ticket and $250 for a round-trip.

  • Do I need a passport to fly between Allentown and St. Louis?

    A passport is not required to fly from Allentown to St. Louis.

  • Which aircraft models fly most regularly from Allentown to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Allentown to St. Louis?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Allentown and St. Louis, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Allentown to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Allentown to St. Louis are Delta and United Airlines. With an average price for the route of $390 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $378 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Allentown to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Allentown to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Allentown to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Allentown is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Allentown to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Allentown with another airline. Booking your flights between Allentown and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Allentown to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Allentown up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Allentown to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Allentown to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Allentown to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8468 reviews
7.2Food
8.5Crew
8.1Boarding
7.9Comfort
7.8Entertainment
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The captain announced to the cabin there would be a delay because they observed a "cut" on a tire during precheck that needed to be cleared by maintenance. We were delayed during this inspection and allowed to proceed after maintenance "measured the cut and decided it was acceptable". My complaint is not about the delay or due diligence. I wish the captain had been more generic when making his announcement. I was a nervous wreck all the way to Charlotte worried that we would have a blowout when landing!

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Everything you need to know for your flight from Allentown to St. Louis

Information on your arrival and departure airports