STL - PBI

$71 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 4/7. 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
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Everything you should know

Cheapest round-trip
$239
Overall average: $377
Frontier
Mon 4/6Thu 4/9
STL - PBI • 2 stops
Cheapest non-stop
$491
Southwest
Mon 3/30Wed 4/1
STL - PBI • Non-stop
Advice from real travelers
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
Nonstop flights
5 days a week
Mon, Thu, Fri, Sat, Sun
You can fly direct with Southwest. Average duration is 2h 35m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $239 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $373 (round-trip)
Shortest trip • 4h 18m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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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

Mon, Apr 6 - Thu, Apr 9
Frontier Logo
8:41 am - 6:36 pm
STL
-
PBI
32h 55m
2 stops
Frontier Logo
12:17 pm - 5:34 pm
PBI
-
STL
6h 17m
1 stop
$239Frontier
Sun, Mar 29 - Thu, Apr 2
Frontier Logo
11:21 am - 6:37 pm
STL
-
PBI
6h 16m
1 stop
Frontier Logo
12:17 pm - 5:34 pm
PBI
-
STL
6h 17m
1 stop
$290Frontier
Wed, Apr 1 - Wed, Apr 8
Southwest Logo
9:50 am - 1:25 pm
STL
-
PBI
2h 35mnonstop
Southwest Logo
3:00 pm - 9:05 pm
PBI
-
STL
7h 05m
1 stop
$320Southwest
Wed, Apr 1 - Wed, Apr 8
Southwest Logo
2:25 pm - 10:05 pm
STL
-
PBI
6h 40m
1 stop
Southwest Logo
6:00 pm - 10:35 pm
PBI
-
STL
5h 35m
1 stop
$325Southwest
Sat, Apr 4 - Tue, Apr 7
Southwest Logo
12:15 pm - 6:25 pm
STL
-
PBI
5h 10m
1 stop
Southwest Logo
6:00 pm - 10:35 pm
PBI
-
STL
5h 35m
1 stop
$328Southwest
Wed, Apr 1 - Wed, Apr 8
Southwest Logo
4:05 pm - 10:05 pm
STL
-
PBI
5h 00m
1 stop
Southwest Logo
7:10 am - 1:25 pm
PBI
-
STL
7h 15m
2 stops
$330Southwest
Wed, Apr 15 - Sat, Apr 18
United Airlines Logo
6:30 am - 3:08 pm
STL
-
PBI
7h 38m
1 stop
United Airlines Logo
4:15 pm - 9:52 pm
PBI
-
STL
6h 37m
1 stop
$333United Airlines
Wed, Apr 1 - Wed, Apr 8
Southwest Logo
2:25 pm - 10:05 pm
STL
-
PBI
6h 40m
2 stops
Southwest Logo
7:10 am - 1:25 pm
PBI
-
STL
7h 15m
2 stops
$335Southwest
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
5:35 am - 3:15 pm
STL
-
PBI
8h 40m
2 stops
Southwest Logo
6:20 am - 11:25 am
PBI
-
STL
6h 05m
1 stop
$338Southwest
Sat, Apr 4 - Tue, Apr 7
Southwest Logo
10:15 am - 1:50 pm
STL
-
PBI
2h 35mnonstop
Southwest Logo
6:00 pm - 10:35 pm
PBI
-
STL
5h 35m
1 stop
$339Southwest
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 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 $434 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 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 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$71
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 16% 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 $71 for a one-way ticket and $239 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?

    There are nonstop flights from St. Louis to West Palm Beach on a daily basis.

  • 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 $448 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 $374 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.

KAYAK’s top tips for finding a cheap flight from St. Louis to West Palm Beach

  • Looking for a cheap flight? 25% of our users found flights on this route for $606 or less round-trip.

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

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

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 4318 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

6.0 GoodAnonymous, Mar 2026
STL - HOU
Read more Southwest reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

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.

The whole experience was excellent. As it most often is with Delta

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Sorry I didn't realize I was writing a review for each leg. Please see my previous review - it applies to the entire flight, not just a single leg.

boarded at 5:30 pm, pushed away from gate at 6pm ... takeoff was not until ~6:45pm; disappointing

Paid for wifi that didn't work. No plug in seat to work. No entertainment.

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.

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

Mechanical issue delayed us 2hrs and then once we landed sat on tarmac for 30mins because someone left a vehicle in front of the gaye

Plane from partner PSA was filthy. Plastic needs to be thoroughly cleaned. Really disgusting to look at and wonder about cleanliness of parts less visible.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

It was a train wreck but on an airplane. First off, flight was delayed then we board only to hear two announcements, First weather delays in Orlando and second backup battery warning on emergency lights. After sitting on the plane for almost 2 hours they have us deplane due to the maintenance issue. We were told they were getting another plane. In the mean time, I notice another American- Orlando flight and ask the gate agent if I can switch. He says he cant help me and I'd have to walk to A13 from A37. Really!? I get down there and get a seat only to get an announcement my original flight was RE-boarding. The Then inflight there's no communication and I notice on flightaware were circling over the Gulf of America. I call the flight attendant and of course she has no clue and apparently 5m later the pilot finally tells us about another delay. Why does American always have these service and delay issues? They are my LAST choice in flights now!

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

We missed our flight and got stranded in Miami where we had to rent a hotel we could not afford. they would not work with us because they said it was weather related even though the gate attendant said it was not. I could go on but trying to get satisfaction has wore me down, which I believe is the intent. My only solution is to never fly AA again.

The flight was really crowded. Flight attendants were just ok.

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

Information on your arrival and departure airports