ABE - STL

$149 Find Cheap Flights from Allentown to St. Louis - Compare and Save

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 11/4. 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

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Everything you should know

Cheapest round-trip
$297
Typical prices: $322-$476
Delta
Wed 8/19Tue 8/25
ABE - STL • 1 stop
Cheapest one-way
$149
American Airlines
Wed 11/4
ABE - STL • 1 stop
Top airlines
Cheapest • from $297 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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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 $333 (round-trip)
Shortest trip • 5h 27m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Wed, Aug 19 - Tue, Aug 25
Delta Logo
6:16 am - 9:54 am
ABE
-
STL
4h 38m
1 stop
Delta Logo
7:00 am - 12:28 pm
STL
-
ABE
4h 28m
1 stop
$297Delta
Sat, Nov 14 - Mon, Nov 16
Delta Logo
6:04 pm - 11:56 pm
ABE
-
STL
6h 52m
1 stop
Delta Logo
2:31 pm - 10:27 pm
STL
-
ABE
6h 56m
1 stop
$297Delta
Thu, Oct 22 - Sat, Oct 24
Delta Logo
6:39 am - 1:20 pm
ABE
-
STL
7h 41m
1 stop
Delta Logo
6:00 am - 12:05 pm
STL
-
ABE
5h 05m
1 stop
$297Delta
Sun, Aug 23 - Sun, Aug 30
Multiple Airlines Logo
3:05 pm - 3:28 pm
ABE
-
STL
25h 23m
1 stop
Multiple Airlines Logo
6:17 pm - 10:16 pm
STL
-
ABE
26h 59m
2 stops
$350Multiple Airlines
Sun, Aug 23 - Sun, Aug 30
United Airlines Logo
6:01 pm - 10:01 pm
ABE
-
STL
5h 00m
1 stop
United Airlines Logo
10:53 am - 4:56 pm
STL
-
ABE
5h 03m
1 stop
$374United Airlines
Thu, Sep 10 - Sun, Sep 13
Multiple Airlines Logo
3:00 pm - 1:10 pm
ABE
-
STL
23h 10m
2 stops
Multiple Airlines Logo
1:02 pm - 3:38 pm
STL
-
ABE
25h 36m
1 stop
$377Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
United Airlines Logo
5:41 pm - 9:26 pm
ABE
-
STL
4h 45m
1 stop
United Airlines Logo
8:30 am - 5:01 pm
STL
-
ABE
7h 31m
1 stop
$379United Airlines
Tue, Sep 1 - Fri, Sep 4
Multiple Airlines Logo
10:00 am - 5:50 pm
ABE
-
STL
32h 50m
2 stops
Multiple Airlines Logo
4:23 pm - 9:24 am
STL
-
ABE
16h 01m
1 stop
$438Multiple Airlines
Thu, Sep 24 - Fri, Sep 25
American Airlines Logo
9:13 am - 1:16 pm
ABE
-
STL
5h 03m
1 stop
American Airlines Logo
11:01 am - 4:40 pm
STL
-
ABE
4h 39m
1 stop
$495American Airlines
Tue, Sep 1 - Fri, Sep 4
American Airlines Logo
9:36 am - 4:20 pm
ABE
-
STL
7h 44m
1 stop
American Airlines Logo
9:32 am - 4:42 pm
STL
-
ABE
6h 10m
1 stop
$495American Airlines
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 August.

Flight prices are below average for this route right now.

Flights to St. Louis from Allentown usually cost between $322 and $476 in August.
The lowest price found in the past 5 days was $297 on Delta (Aug 19-Aug 25).

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 October, where tickets cost $281 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $622 and $516 respectively.

Good to know

Low season

December

Cheapest flight

$149
Best time to beat the crowds but there is an average 51% increase in price.
Most popular time to fly and prices are also 13% 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 5 days, the lowest price for a flight from Allentown to St. Louis was $149 for a one-way ticket and $297 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, oneworld, and SkyTeam 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 $396 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $437 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.
7.8
DeltaOverall score based on 8482 reviews
7.8Comfort
7.2Food
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

No Internet, no backseat screen, no nothing. I bought a Delta ticket and ended up on American Airlines. How did that happen?

6.0 GoodAlexander, Jul 2026
MDT - ATL
Read more Delta reviews

No Internet, no backseat screen, no nothing. I bought a Delta ticket and ended up on American Airlines. How did that happen?

Connection flights should be spaced out farther because too close I missed my connection.

We departed early and made up time in the air allowing us to arrive 30 minutes early. Capt was incredibly genuine and thanked every passenger for flying with Delta. Completely humble and professional!

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

On 2 different flights the wifi was horrible and there was no drink or snack service.

There was no FREE wi-fi nor entertainment screens at all.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

As we lined up to board they gave our plane to a flight going to Newark. So then we got delayed until they could find another plane. Flight crew was ok. I’m assuming since it’s a shorter flight they only offered water and coffee.

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

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.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Improvements in communication and empathy are absolutely necessary for American Airlines staff (top down). It’s like they are numb to the needs of their customers.

I like the speed of boarding and deplaning and the fact that everything was on time. The crew (attendants) were probably quite new and did not begin the in cabin service until 30 min before landing even though there was little to no air turbulence for the last 1.5 hours of the flight. It made for a mad scramble at the end to get trash collected and carts stowed before touch down.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

I did like the employee's, they are very friendly and all smiled most of the time, Overall, from checking in bags to getting on plane, not enough employees to be able to get all on the plane, therefore I was not able to get on the plane, due to no one wea there for me to check in my bag, so I decided to go thru the security point and by the time they were done with my bags, I was told that my bag cannot be checked in, and then found out that the lady that does the check in was boarding the customers onto the plane, she said that she was going back and fourth, there for was not able to get on the plane, which changed all my flights by the time I got to Dallas, I was on standby 3 times, and wasn't sure about being able to get on the fourth plane, so ended up buying another plane ticket, so I could make my destination on time.

Not sure about entertainment as I didn't use any, so maybe there should be an NA option on this survey. Otherwise everything was just as it should be. Of course I wish planes were more comfortable and had seats that would tilt back further.

American Airlines “Randy” questioned why I needed preboarding and denied my request for same. Then Randy attempted to berate me when I boarded with my group. I was seated in an exit roll with a young man with a disability that exhibited difficulty controlling and settling himself. But Tandy questioned my disability. The flight was horrible. It was overpacked.

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

Information on your arrival and departure airports