Cheap flights from Philadelphia to St Louis (PHL - STL)

Flight FAQs

From Philadelphia to St Louis

Are flight prices decreasing from Philadelphia to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Philadelphia and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Philadelphia to Lambert-St Louis to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Southwest and Delta are some airlines that have done so. New policies for travelers booking flights from Philadelphia to Lambert-St Louis include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Philadelphia to Lambert-St Louis have flexible cancellations due to COVID-19?

American Airlines, Frontier, and Delta are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Philadelphia to St Louis for under $100 on Cheapflights?

Yes, there are multiple flights from Philadelphia to St Louis for under $100. The cheapest flight booked recently is on Frontier for just $68, but on average you can expect to pay $138.

Are there nonstop flights from Philadelphia to St Louis for under $200 on Cheapflights?

Cheapflights has at least 11 direct flights from Philadelphia to St Louis under $200. A good price for a nonstop flight from Philadelphia to St Louis is less than $342.

Are there last-minute flights available from Philadelphia to St Louis for under $200?

There are currently 20+ open flights from Philadelphia to St Louis within the next 7 days for less than $200.

Does it rain more in Philadelphia or St Louis?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Philadelphia is roughly less than St Louis. You can assume this to be the case over the next 13 days.

Is Philadelphia weather warmer or cooler than St Louis?

With an average temperature of 90 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in St Louis are hotter than in Philadelphia.

How long is the flight from Philadelphia to St Louis?

Airlines like American Airlines and Frontier fly from Philadelphia to St Louis in about 2h 44m. The time it takes to get you to your destination can typically vary by up to 3h 51m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Philadelphia to St Louis round-trip?

Flying on Frontier is currently your cheapest option to St Louis, with prices starting at $68. Another option worth looking into is American Airlines, starting at $177 round trip. You may be able to fly from Philadelphia to St Louis for 79% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Philadelphia to St Louis one-way?

$40 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $99 and $187, respectively.