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St. Charles

$65+ Cheap flights from Sky Harbor Intl (PHX) 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Nov 10 — Nov 171
1 adult
Sun 11/10
Sun 11/17
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The best prices from Phoenix Sky Harbor Intl to St. Charles are usually found in June or July, booked 63 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to St. Charles

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 5, 2024.

Popular in

December

Cheapest in

June

Round-trip from

$158
(CheapOair)

One-way from

$65
(CheapOair)
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 30% potential price drop
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From Phoenix Sky Harbor Intl to St. Charles
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One-way flight from Phoenix Sky Harbor Intl to St. Charles
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Find flight deals from Sky Harbor Intl to St. Charles

Cheapest flights from Sky Harbor Intl to St. Charles
Explore the most affordable flight options available from Sky Harbor Intl to St. Charles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This CheapOair deal was found by Cheapflights users on 11/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:25 pmPHX - STL
1 stop23h 09mFrontier
Wed 12/186:49 pmSTL - PHX
1 stop6h 33mFrontier
Deal found 11/4$158
This Orbitz deal was found by Cheapflights users on 11/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2511:30 amPHX - STL
2 stops11h 29mMultiple Airlines
Sat 12/76:46 pmSTL - PHX
1 stop6h 34mMultiple Airlines
Deal found 11/4$262
This Delta deal was found by Cheapflights users on 11/4. 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 12/32:40 pmPHX - STL
1 stop5h 44mDelta
Tue 12/1010:21 amSTL - PHX
1 stop8h 02mDelta
Deal found 11/4$336
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Mon 11/251:15 pmPHX - STL
1 stop6h 42mUnited Airlines
Fri 11/295:40 pmSTL - PHX
1 stop6h 07mUnited Airlines
Deal found 11/4$342
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Mon 11/257:59 pmPHX - STL
Nonstop2h 58mAmerican Airlines
Fri 11/297:30 amSTL - PHX
Nonstop3h 30mAmerican Airlines
Deal found 11/4$359
This Southwest deal was found by Cheapflights users on 11/4. 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.
Mon 11/258:50 pmPHX - STL
Nonstop2h 50mSouthwest
Fri 11/296:00 amSTL - PHX
Nonstop3h 30mSouthwest
Deal found 11/4$390
This FareScan deal was found by Cheapflights users on 11/3. 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 FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/63:20 pmPHX - STL
2 stops24h 14mSpirit Airlines
Sun 11/105:29 pmSTL - PHX
2 stops29h 19mSpirit Airlines
Deal found 11/3$395
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/58:15 pmPHX - STL
1 stop16h 09mAlaska Airlines
Wed 12/117:00 amSTL - PHX
2 stops15h 00mAlaska Airlines
Deal found 11/4$411

Find flights from Sky Harbor Intl to St. Charles within your budget

Customize your flight search to find flights from Sky Harbor Intl 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 2,455,398 searches. Data last updated November 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 2/4

5:23 pm-8:13 am

1 stop13h 50m

$65

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Mon 11/18

10:43 pm-4:34 pm

2 stops16h 51m

$119

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Sun 12/15

10:11 pm-11:33 pm

3 stops24h 22m

$148

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 1/7

5:46 pm-1:53 pm

1 stop19h 07m

$157

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 1/8

7:58 pm-11:57 pm

Nonstop2h 59m

$159

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 12/3

2:40 pm-9:24 pm

1 stop5h 44m

$163

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 12/10

2:20 pm-12:43 pm

2 stops21h 23m

$207

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 11/27

8:40 pm-12:30 am

Nonstop2h 50m

$236

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 12/24

11:20 am-12:00 pm

3 stops23h 40m

$418

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 12/4

7:25 pm-7:34 pm

1 stop23h 09m

Lambert-St Louis

Wed 12/18

6:49 pm-12:22 am

1 stop6h 33m

$158

Flights are sorted by cheapest first

Deals found on 11/3

Showing 1-10 of 17 results
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Best time to book a flight from Sky Harbor Intl to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles from Sky Harbor Intl 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 Sky Harbor Intl to St. Charles

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

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to St. Charles?

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to St. Charles. Price data was last updated on November 1, 2024.

The price you pay for your flight from Phoenix Sky Harbor Intl Airport to St. Charles may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to St. Charles?

Currently, September is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to St. Charles (average of $308). Flying from Phoenix Sky Harbor Intl Airport to St. Charles in March is currently the most expensive (average of $356). 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 PHX to CH5?

Find hourly flight availability from Sky Harbor Intl 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 5, 2024.

When flying from Phoenix Sky Harbor Intl Airport to St. Charles, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to St. Charles?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to St. Charles. Price data was last updated on April 14, 2024.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to St. Charles flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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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 5, 2024.
Get a feel of what it's like to fly with American Airlines, Southwest and United Airlines from Phoenix to St. Charles by reading reviews from past customers. 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
5,082 reviews

Boarding

8.3

Overall

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Comfort

8.1

Reviews

1 / 10

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

Southwest
8.1
Very good
5,082 reviews
Southwest
8.1
Very good
5,082 reviews

Boarding

8.3

Overall

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Comfort

8.1

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,421 reviews
Southwest
8.1
Very good
5,082 reviews

Boarding

8.3

Overall

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Comfort

8.1

Reviews

1 / 10

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

Delta
8.0
Very good
8,829 reviews
Southwest
8.1
Very good
5,082 reviews

Boarding

8.3

Overall

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Comfort

8.1

Reviews

1 / 10

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

United Airlines
7.4
Good
9,226 reviews
Southwest
8.1
Very good
5,082 reviews

Boarding

8.3

Overall

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Comfort

8.1

Reviews

1 / 10

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

WestJet
7.3
Good
2,800 reviews
Southwest
8.1
Very good
5,082 reviews

Boarding

8.3

Overall

8.1

Entertainment

7.7

Crew

8.7

Food

7.2

Comfort

8.1

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 Sky Harbor Intl to St. Charles. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Phoenix Sky Harbor Intl Airport to St. Charles for under $200 on Cheapflights?

    Yes, there are multiple flights from Phoenix Sky Harbor Intl Airport to St. Charles for under $200. The cheapest flight booked recently is on Frontier for just $158, but on average you can expect to pay $310.

  • Are there nonstop flights from Phoenix Sky Harbor Intl Airport to St. Charles for under $400 on Cheapflights?

    Cheapflights has at least 2 direct flights from Phoenix Sky Harbor Intl Airport to St. Charles under $400. A good price for a nonstop flight from Phoenix Sky Harbor Intl Airport to St. Charles is less than $353.

  • Are there last-minute flights available from Phoenix Sky Harbor Intl Airport to St. Charles for under $200?

    There are currently 7+ open flights from Phoenix Sky Harbor Intl Airport to St. Charles within the next 7 days for less than $200.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to St. Charles one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $65. However, be on the lookout for offers from Spirit Airlines and Alaska Airlines, as they are both options that can get you from Phoenix Sky Harbor Intl Airport to St. Charles for a low price.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to St. Charles?

    No one likes to see their flight delayed. When booking a flight from Phoenix Sky Harbor Intl Airport to St. Charles consider choosing Southwest (88%), American Airlines (83%) or Alaska Airlines (64%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to St. Charles?

    While on average a flight from Phoenix Sky Harbor Intl Airport to St. Charles is generally $315, our data shows the cheapest flight currently is $132. When looking at the most popular route, (Phoenix Sky Harbor Intl - Lambert-St Louis), you can expect to pay $227 for that flight.

  • What does PHX to STL mean?

    This is defined as Phoenix Sky Harbor Intl Airport (PHX) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely. Ready for more IATA code knowledge? These are related airports for your current travel destination: Columbia Regional Airport (COU), Springfield Capital Airport (SPI), Belleville Airport (BLV), Quincy Regional Airport (UIN).

  • Can I find deals for flights from Sky Harbor Intl to St. Charles that include extra baggage allowance?

    The amount of baggage you can bring on your Sky Harbor Intl to St. Charles flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Sky Harbor Intl to St. Charles with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sky Harbor Intl to St. Charles flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Sky Harbor Intl to St. Charles?

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

  • Can I find deals for business class flights from Sky Harbor Intl to St. Charles?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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.

  • Can I find deals for flights from Sky Harbor Intl to St. Charles that allow pets onboard?

    Many airlines flying from Sky Harbor Intl to St. Charles offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Sky Harbor Intl to St. Charles?

    Yes, you can often find last-minute deals on Sky Harbor Intl to St. Charles flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Phoenix Sky Harbor Intl Airport to St. Charles flight deals updated?

    The Phoenix Sky Harbor Intl Airport to St. Charles flight deals you see on this page were last updated on 11/4.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to St. Charles?

    Currently, September is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to St. Charles (average of $308). Flying from Phoenix Sky Harbor Intl Airport to St. Charles in March is currently the most expensive (average of $356). 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.

See more FAQs

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Top 5 airlines flying from Sky Harbor Intl to St. Charles

Discover the top 5 airlines that operate flights from Sky Harbor Intl 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 2,455,398 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$150FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$132Average$500FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$296FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$220Average$398FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$273Average$505FlexibilityNo cancel feeOn-time69%
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