STL - PBI

$90 Find Cheap Flights from St. Louis to West Palm Beach

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to West Palm Beach departing on 2/23. 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 West Palm Beach

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to West Palm Beach, 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 St. Louis to West Palm Beach, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$192
Overall average: $386
Multiple Airlines
Tue 2/17Fri 2/20
STL - PBI • 2 stops
Cheapest non-stop
$333
Southwest
Sat 3/28Sat 4/4
STL - PBI • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Avoid peak hours at STL to skip crowded terminals.
Use rideshares for a quick 10-minute ride from PBI.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $214 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 27% price drop
March
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 West Palm Beach!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from St. Louis to West Palm Beach (STL-PBI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to West Palm Beach 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 St. Louis to West Palm Beach

Tue, Feb 17 - Fri, Feb 20
Multiple Airlines Logo
3:49 pm - 9:54 am
STL
-
PBI
41h 05m
2 stops
Multiple Airlines Logo
1:09 pm - 6:51 am
PBI
-
STL
18h 42m
1 stop
$192Multiple Airlines
Mon, Feb 23 - Sun, Mar 1
Frontier Logo
8:22 pm - 8:00 pm
STL
-
PBI
22h 38m
2 stops
Frontier Logo
1:36 pm - 6:51 am
PBI
-
STL
18h 15m
1 stop
$214Frontier
Wed, Feb 25 - Sun, Mar 1
Frontier Logo
8:17 pm - 3:34 pm
STL
-
PBI
18h 17m
2 stops
Frontier Logo
1:36 pm - 6:51 am
PBI
-
STL
18h 15m
1 stop
$238Frontier
Fri, Feb 6 - Sun, Mar 8
Multiple Airlines Logo
8:22 pm - 11:00 am
STL
-
PBI
37h 38m
2 stops
Multiple Airlines Logo
7:32 pm - 1:19 pm
PBI
-
STL
18h 47m
1 stop
$241Multiple Airlines
Fri, Feb 6 - Sun, Mar 8
Frontier Logo
8:22 pm - 6:33 pm
STL
-
PBI
21h 11m
1 stop
Frontier Logo
7:32 pm - 1:19 pm
PBI
-
STL
18h 47m
1 stop
$258Frontier
Wed, Feb 18 - Sat, Feb 21
American Airlines Logo
7:00 am - 2:49 pm
STL
-
PBI
6h 49m
1 stop
American Airlines Logo
6:00 am - 1:50 pm
PBI
-
STL
8h 50m
1 stop
$265American Airlines
Sun, Feb 8 - Fri, Feb 13
Multiple Airlines Logo
5:42 pm - 9:50 am
STL
-
PBI
39h 08m
2 stops
Multiple Airlines Logo
1:09 pm - 6:51 am
PBI
-
STL
18h 42m
1 stop
$272Multiple Airlines
Thu, Mar 26 - Sat, Apr 4
Frontier Logo
11:21 am - 6:38 pm
STL
-
PBI
6h 17m
1 stop
Frontier Logo
6:14 pm - 10:30 am
PBI
-
STL
17h 16m
1 stop
$275Frontier
Sun, Mar 29 - Sat, Apr 4
Frontier Logo
11:21 am - 6:37 pm
STL
-
PBI
6h 16m
1 stop
Frontier Logo
6:14 pm - 10:30 am
PBI
-
STL
17h 16m
1 stop
$276Frontier
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
3:49 pm - 8:34 am
STL
-
PBI
15h 45m
2 stops
Multiple Airlines Logo
1:36 pm - 6:51 am
PBI
-
STL
18h 15m
1 stop
$298Multiple Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to West Palm Beach flights

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

What’s the cheapest day of the week to fly from St. Louis to West Palm Beach?

The average price of all round-trip flights from St. Louis to West Palm Beach clicked on KAYAK for each day over the last 12 months.

For St. Louis to West Palm Beach, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from West Palm Beach back to St. Louis, the best deals are generally found on Thursday, with Friday being the most expensive.

What is the cheapest month to fly from St. Louis to West Palm Beach?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to West Palm Beach, 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 St. Louis to West Palm Beach is September, where tickets cost $278 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $447 and $446 respectively.

How far in advance should I book a flight from St. Louis to West Palm Beach?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to West Palm Beach, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to West Palm Beach, you should book around 4 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from St. Louis to West Palm Beach

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on PBI

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Low seasonNovember
Cheapest flight$90
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from St. Louis to West Palm Beach

When to book flights from St. Louis to West Palm Beach

Are your dates flexible? Find out the best times to travel from St. Louis to West Palm Beach 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 St. Louis to West Palm Beach

  • What is the cheapest flight from St. Louis to West Palm Beach?

    In the last 3 days, the lowest price for a flight from St. Louis to West Palm Beach was $97 for a one-way ticket and $192 for a round-trip.

  • Do I need a passport to fly between St. Louis and West Palm Beach?

    No

  • Which airports will I be using when flying from St. Louis to West Palm Beach?

    St. Louis and West Palm Beach are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Palm Beach Intl.

  • Which aircraft models fly most regularly from St. Louis to West Palm Beach?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to West Palm Beach flight route.

  • Which airline alliances offer flights from St. Louis to West Palm Beach?

    oneworld, and SkyTeam are the airline alliances operating flights between St. Louis and West Palm Beach, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from St. Louis to West Palm Beach?

    You can catch a nonstop flight from St. Louis to West Palm Beach on on Thursday, Friday, and Saturday.

  • Which is the best airline for flights from St. Louis to West Palm Beach, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to West Palm Beach are Southwest and Delta. With an average price for the route of $418 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $387 and an overall rating of 7.9.

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

    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 St. Louis to West Palm Beach.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to West Palm Beach from St. Louis 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 St. Louis to West Palm Beach?

    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 West Palm Beach with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and PBI 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 St. Louis to West Palm Beach?

    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 West Palm Beach from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from St. Louis to West Palm Beach?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Palm Beach Intl.
Find which airlines fly direct from Lambert-St Louis Airport to Palm Beach Intl Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Palm Beach Intl

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Palm Beach Intl to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 3 airlines serving from St. Louis to West Palm Beach

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to West Palm Beach. 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 St. Louis to West Palm Beach? 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.
8.0
SouthwestOverall score based on 4268 reviews
8.0Comfort
8.1Boarding
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

Pretty seamless, just a tad bit late in taking off and landing.

8.0 ExcellentSudhir, Jan 2026
MCI - LGA
Read more Southwest reviews

Pretty seamless, just a tad bit late in taking off and landing.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

Everything a cheap airline should be at normal airline rates.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

It is southwest seat was ok. Not the most comfortable seat

Plz don't take away free bags and free seating

Very good. Sad to learn Southwest is going start to charge for bags

The flight was delayed and oversold. I volunteered to give up my seat for compensation. Thinking I could get a good night's sleep instead of arriving home at 2 am. It took over an hour to get the new reservation confirmed, three different gate attendants, and two red coats. It took even longer to confirm the overnight hotel, and when I arrived, the line was 45 minutes long, with two people checking in, and at least 15 people slowly, very slowly—no food except frozen convenience food, no coupon for food from airlines. Slept, headed back to the airport, and that flight had an equipment change and a gate change just as they were about to board. It took an additional hour to board as they cleaned the plane from storage.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

The flight was an hour and a half late departing which was inconvenient

The flight was great. The gate location was way to far away!!!

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Everything you need to know for your flight from St. Louis to West Palm Beach

Information on your arrival and departure airports