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St. Charles

$53+ Cheap flights from Philadelphia (PHL) to St. Charles, MO

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STL
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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The best prices from Philadelphia to St. Charles are usually found in June or July, booked 86 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap flight deals from Philadelphia to St. Charles

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to St. Charles (CH5). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Popular in

December

Cheapest in

June

Round-trip from

$260
(Mytrip)

One-way from

$53
(Cheapflightsfares)
High demand for flights, 23% potential price rise
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Best time to find cheap flights, 36% potential price drop
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From Philadelphia to St. Charles
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One-way flight from Philadelphia to St. Charles
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Find flight deals from Philadelphia to St. Charles

Cheapest flights from Philadelphia to St. Charles
Explore the most affordable flight options available from Philadelphia to St. Charles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This FlightHub deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/65:32 pmPHL - STL
1 stop6h 52mFrontier
Sat 12/76:46 pmSTL - PHL
1 stop24h 55mFrontier
Deal found 11/21$284
This Mytrip deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/132:45 pmPHL - STL
3 stops25h 36mSpirit Airlines
Tue 12/244:27 pmSTL - PHL
1 stop6h 38mSpirit Airlines
Deal found 11/21$290
This FlightHub deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/412:12 pmPHL - STL
1 stop12h 12mMultiple Airlines
Sun 12/84:26 pmSTL - PHL
1 stop15h 19mMultiple Airlines
Deal found 11/21$303
This Delta deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:14 pmPHL - STL
1 stop6h 33mDelta
Tue 12/315:17 pmSTL - PHL
1 stop6h 35mDelta
Deal found 11/21$336
This American Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/129:28 amPHL - STL
1 stop7h 02mAmerican Airlines
Mon 12/166:00 amSTL - PHL
Nonstop2h 12mAmerican Airlines
Deal found 11/21$347
This Southwest deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/198:10 pmPHL - STL
Nonstop2h 30mSouthwest
Mon 12/239:20 pmSTL - PHL
Nonstop2h 05mSouthwest
Deal found 11/21$378
This United Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:20 amPHL - STL
2 stops10h 14mUnited Airlines
Mon 12/166:30 amSTL - PHL
1 stop6h 50mUnited Airlines
Deal found 11/21$447

Find flights from Philadelphia to St. Charles within your budget

Customize your flight search to find flights from Philadelphia to St. Charles that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Mon 12/16

8:20 am-6:41 pm

2 stops11h 21m

Lambert-St Louis

Thu 12/19

9:50 am-8:20 pm

2 stops9h 30m

$260

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Sat 12/7

7:27 pm-3:21 pm

2 stops20h 54m

Lambert-St Louis

Tue 12/10

4:26 pm-10:00 am

2 stops16h 34m

$274

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Sat 1/4

7:30 am-11:10 am

1 stop28h 40m

Lambert-St Louis

Sun 1/5

10:09 pm-5:09 am

1 stop30h 00m

$289

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Tue 12/17

7:21 am-4:21 pm

1 stop10h 00m

Lambert-St Louis

Tue 12/24

12:41 pm-3:51 pm

Nonstop2h 10m

$310

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Thu 1/16

7:20 am-9:05 am

Nonstop2h 45m

Lambert-St Louis

Tue 1/21

6:05 pm-9:10 pm

Nonstop2h 05m

$328

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Thu 4/10

10:10 am-2:18 pm

1 stop5h 08m

Lambert-St Louis

Sun 4/13

5:18 pm-12:32 am

1 stop6h 14m

$428

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Fri 12/20

6:00 am-9:33 am

1 stop4h 33m

Lambert-St Louis

Sat 12/28

5:55 pm-11:14 pm

1 stop4h 19m

$436

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Wed 2/12

7:45 am-5:43 pm

1 stop10h 58m

$53

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Tue 2/25

6:10 am-6:27 pm

1 stop13h 17m

$120

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Mon 1/6

8:20 am-6:41 pm

2 stops11h 21m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 14 results
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Best time to book a flight from Philadelphia to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Philadelphia to St. Charles

Get recent, data-driven insights about flights from Philadelphia to St. Charles including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Philadelphia to St. Charles?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to St. Charles. Price data was last updated on November 15, 2024.

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to St. Charles. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Philadelphia to St. Charles?

Currently, September is the cheapest month in which you can book a flight from Philadelphia to St. Charles (average of $308). Flying from Philadelphia to St. Charles in March is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to CH5?

Find hourly flight availability from Philadelphia to St. Charles. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to St. Charles as you normally would.

What is the cheapest day to fly from Philadelphia to St. Charles?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to St. Charles. Price data was last updated on October 13, 2024.

Travelers seeking maximum savings on their Philadelphia to St. Charles flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Philadelphia to St. Charles

Explore weekly flight availability from Philadelphia to St. Charles. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2024.

The most flights from PHL to CH5 are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in St. Charles by month

Plan your trip to St. Charles by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Charles ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Charles when rainfall is around 2.2 in.

Temperature in St. Charles by month

Plan your trip to St. Charles by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Charles, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Charles

Get insights into the airlines that provide service to St. Charles. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Charles. Reviews last updated November 21, 2024.
See what other customers who have flown with Spirit Airlines, Frontier and American Airlines from Philadelphia to St. Charles have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Spirit Airlines
6.3
Okay
8,169 reviews
Southwest
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to St. Charles. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to St. Charles?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to St. Charles. 5 airlines have flights from Philadelphia to St. Charles on a regular basis. Booking flights from Philadelphia to St. Charles should not be difficult; the airport handles an average of 7 outbound flights to St. Charles per day.

  • How popular is this Philadelphia to St. Charles flight route?

    Flights from Philadelphia to St. Charles have been viewed 14 times in the past calendar month.

  • What are the cheapest airlines to fly from Philadelphia to St. Charles one-way?

    One-way options have recently been found by users for as low as $53 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $120 and American Airlines from $157 one-way.

  • What are the most reliable airlines from Philadelphia to St. Charles?

    No one likes to see their flight delayed. When booking a flight from Philadelphia to St. Charles consider choosing Republic Airways (92%), PSA Airlines (91%) or Qatar Airways (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to St. Charles?

    While on average a flight from Philadelphia to St. Charles is generally $346, our data shows the cheapest flight currently is $154. When looking at the most popular route, (Philadelphia - Lambert-St Louis), you can expect to pay $187 for that flight.

  • Can I find deals for flights from Philadelphia to St. Charles that include hotel bookings?

    Yes. In addition to deals on Philadelphia to St. Charles flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to St. Charles?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to St. Charles.

  • Can I find deals for business class flights from Philadelphia to St. Charles?

    Yes. Cheapflights offers flight deals from Philadelphia to St. Charles by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to St. Charles?

    Currently, September is the cheapest month in which you can book a flight from Philadelphia to St. Charles (average of $308). Flying from Philadelphia to St. Charles in March is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Philadelphia to St. Charles

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Top 5 airlines flying from Philadelphia to St. Charles

Discover the top 5 airlines that operate flights from Philadelphia to St. Charles. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$52Average$97FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$143Average$441FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$503FlexibilityNo cancel feeOn-time69%
DeltaCheapest$200Average$430FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$238Average$403FlexibilityNo cancel feeOn-time63%
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