Cheap flights from Philadelphia to St. Louis from $54
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to St. Louis departing on 2/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Philadelphia to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, June is the cheapest month to fly from Philadelphia to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $201. The month of July is another great option to travel to St. Louis, with average flight prices from Philadelphia averaging around $201.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $226. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $338. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Philadelphia at noon is the least expensive time of day to depart. momondo users have found prices as low as $244 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $348 per ticket.
What is the cheapest Philadelphia to Lambert-St Louis flight route?
Fly from Philadelphia to Lambert-St Louis for the best Philadelphia - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
The best time to book a flight to St. Louis from Philadelphia is 48 days out, which is when prices tend to be around $317. In the past 72 hours, momondo users found flights from Philadelphia to St. Louis for as low as $131.
What cabin class options are available on Philadelphia to Lambert-St Louis flights?
There are 3 cabin classes available to choose from on Philadelphia to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Philadelphia to St. Louis flights?
You could potentially save up to 68% on your flight if you consider stops on a Philadelphia to St. Louis flight.
How have Philadelphia to St. Louis flight prices changed over time?
As of December 2024, prices for Philadelphia to St. Louis flights are approximately 0% more expensive when compared to flights at the same time last year.
How many flights depart from Philadelphia to St. Louis on average per day?
As of December 2024, 1 flights take off from Philadelphia and land in St. Louis each day. The most common flight departure time for this route is 8:00PM, with 68% of daily flights taking off in the evening.
How many flights depart from Philadelphia to St. Louis on average per week?
9 flights are operational weekly from Philadelphia to St. Louis as of December 2024. The most popular departure day for this route is Mon, with 33% of flights per week taking off on this day.
When to book flights from Philadelphia to St. Louis
Cheap Philadelphia to St. Louis (PHL to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Philadelphia to St. Louis
How far is Philadelphia to Lambert-St Louis by plane?
There are 808.1 mi between Philadelphia and Lambert-St Louis. Typically, this will take 2h 30m by plane in normal conditions.
When did momondo last update prices for flights from Philadelphia Airport to Lambert-St Louis Airport?
Prices for flights from Philadelphia Airport to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Philadelphia Airport to Lambert-St Louis Airport?
The number of operators available for flights from Philadelphia Airport to Lambert-St Louis Airport is 5 as of December 2024.
How old do you have to be to fly from Philadelphia Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Philadelphia to St. Louis?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Philadelphia to St. Louis is Airbus A319 (20.71% of total bookings). The next most popular plane models are Boeing 737-700 Passenger/BBJ1 (winglets) (17.02%), Boeing 737 MAX 8 (12.03%), and Embraer 175 (11.14%).
What is the most popular airline from Philadelphia to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Philadelphia to St. Louis is American Airlines (71% of total bookings). The next most popular airlines are Frontier (15%), Southwest (11%), and Delta (2%).
Best airlines flying from Philadelphia to St. Louis
Compare and see reviews for airlines that fly from Philadelphia to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $52 | Free Cancellation | Rating 6.1 3,479 reviews | |||
| PriceFrom $142 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $196 | Free Cancellation | Rating 7.4 9,059 reviews | |||
| PriceFrom $200 | Free Cancellation | Rating 8.0 8,604 reviews | |||
| PriceFrom $241 | Free Cancellation | Rating 8.1 4,848 reviews |
Southwest Flights From Philadelphia to St. Louis
The lowest priced Southwest flight from Philadelphia to St. Louis from the last 72 hours was $241. Generally, Southwest has 6 flights on this route every week with an average price of $416. Southwest is rated 8.1/10 by our users.
American Airlines Flights From Philadelphia to St. Louis
$142 is the best American Airlines flight deal from Philadelphia to St. Louis found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $301, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into St. Louis from Philadelphia 3 times in an average week so prices can vary.
Why use momondo?
Why should I use momondo to find a flight deal from Philadelphia to St. Louis?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Philadelphia to St. Louis for you.
Can I find flights from Philadelphia to St. Louis with flexible booking policies on momondo?
Yes. All flights to St. Louis from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Philadelphia to St. Louis?
momondo provides multiple filters to help you find the best flight to St. Louis from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Philadelphia to St. Louis right now. Can momondo alert me if prices change?
If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Philadelphia and alert you when they change.