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Cheap flights from Philadelphia to St. Louis

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Find the cheapest flights from Philadelphia to St. Louis

Cheap return flights

These are some of the best return flight deals from Philadelphia to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Philadelphia to St. Louis.

Cheap last-minute flights

Planning a quick getaway from Philadelphia to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Philadelphia to St. Louis

Find recent round-trip train or bus tickets from Philadelphia to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
PHL-STL
2h 38mdirect
STL-PHL
2h 11mdirect
American Airlines
Find Deal
PHL-STL
2h 35mdirect
STL-PHL
2h 10mdirect
Qatar Airways
Find Deal
PHL-STL
2h 42mdirect
STL-PHL
2h 11mdirect
Aer Lingus
Find Deal
PHL-STL
2h 25mdirect
STL-PHL
2h 10mdirect
Southwest
Find Deal
PHL-STL
2h 42mdirect
STL-PHL
2h 11mdirect
Iberia
Find Deal
PHL-STL
2h 35mdirect
STL-PHL
2h 11mdirect
British Airways
Find Deal
PHL-STL
2h 38mdirect
American Airlines
Find Deal
PHL-STL
2h 35mdirect
Qatar Airways
Find Deal
PHL-STL
2h 42mdirect
Aer Lingus
Find Deal
PHL-STL
2h 25mdirect
Southwest
Find Deal
PHL-STL
2h 42mdirect
Iberia
Find Deal
PHL-STL
2h 35mdirect
British Airways
Find Deal

See travel insights to St. Louis from

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 R3 678. If you aren’t able to travel to St. Louis during the month of June, then flying in July is also cheap. Prices for this month can be found on momondo for an average of R3 678.

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 R5 798. However, in the past 72 hours, people saw flights from Philadelphia for as low as R43 871.

What cabin class options are available on Philadelphia to Lambert-St Louis flights?

There are 1 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.

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.

When to book flights from Philadelphia to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

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

Direct flights

None
There are no direct flights from Philadelphia to St. Louis. There are no popular flight routes from Philadelphia to St. Louis.

  • How far is Philadelphia to Lambert-St Louis by plane?

    Lambert-St Louis is 1300,6 km away from Philadelphia.

  • 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 are refreshed on a daily basis.

  • 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 stopovers. 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 licence, 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?


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?

All flight searches from Philadelphia to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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?

Of course. momondo tracks the price of Philadelphia to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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