St. Charles

$53+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
dez 27 — jan 31
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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 dezembro 22, 2024.

Round-trip from

$254
(KAYAK)

One-way from

$53
(Mytrip)

Popular in

December

Cheapest in

June

Average price

$460
From Phoenix Sky Harbor Intl to St. Charles
One-way flight from Phoenix Sky Harbor Intl to St. Charles
High demand for flights, 21% potential price rise
Best time to find cheap flights, 4% potential price drop
Average for round-trip flights in December 2024

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 dezembro 22, 2024.

This Gotogate deal was found by Cheapflights users on 12/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/318:55 amPHX - STL
1 stop22h 18mFrontier
dom 2/28:31 pmSTL - PHX
1 stop27h 09mFrontier
Deal found 12/21$299
This American Airlines deal was found by Cheapflights users on 12/21. 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.
ter 12/318:00 pmPHX - STL
Nonstop3h 06mAmerican Airlines
dom 2/24:53 pmSTL - PHX
1 stop7h 21mAmerican Airlines
Deal found 12/21$354
This Southwest deal was found by Cheapflights users on 12/21. 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.
ter 12/317:10 pmPHX - STL
Nonstop2h 50mSouthwest
dom 2/22:20 pmSTL - PHX
Nonstop3h 30mSouthwest
Deal found 12/21$381
This United Airlines deal was found by Cheapflights users on 12/21. 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.
ter 12/311:04 pmPHX - STL
1 stop6h 22mUnited Airlines
dom 2/26:30 amSTL - PHX
2 stops12h 38mUnited Airlines
Deal found 12/21$448
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/318:59 pmPHX - STL
2 stops26h 00mAlaska Airlines
dom 2/22:49 pmSTL - PHX
2 stops22h 48mAlaska Airlines
Deal found 12/21$524
This Mytrip deal was found by Cheapflights users on 12/21. 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.
dom 12/291:19 amPHX - STL
3 stops14h 06mMultiple Airlines
qui 1/21:00 pmSTL - PHX
3 stops30h 51mMultiple Airlines
Deal found 12/21$671
This Delta deal was found by Cheapflights users on 12/21. 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.
qua 12/251:10 pmPHX - STL
1 stop7h 56mDelta
qua 1/13:29 pmSTL - PHX
1 stop8h 02mDelta
Deal found 12/21$997

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 2,558,603 searches. Data last updated dezembro 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

qua 3/5

8:52 am-5:43 pm

1 stop7h 51m

Lambert-St Louis

sáb 3/8

6:59 pm-12:59 am

1 stop7h 00m

$254

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

qui 2/20

9:00 am-11:59 pm

2 stops13h 59m

Lambert-St Louis

seg 2/24

11:08 pm-7:47 am

1 stop9h 39m

$266

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

ter 1/28

6:35 pm-10:25 pm

Nonstop2h 50m

Lambert-St Louis

sáb 2/1

7:30 am-10:10 am

Nonstop3h 40m

$299

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

ter 1/7

7:58 pm-11:57 pm

Nonstop2h 59m

Lambert-St Louis

qui 1/9

6:44 am-9:24 am

Nonstop3h 40m

$302

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

ter 3/4

3:15 pm-10:17 pm

1 stop6h 02m

Lambert-St Louis

ter 3/11

5:35 pm-11:37 pm

1 stop8h 02m

$307

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

qua 1/22

10:51 am-4:31 pm

1 stop4h 40m

Lambert-St Louis

sáb 1/25

8:27 am-3:54 pm

1 stop8h 27m

$317

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

qua 3/5

7:00 am-11:59 pm

1 stop15h 59m

Lambert-St Louis

dom 3/9

7:00 am-7:38 pm

2 stops14h 38m

$360

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

qua 2/12

8:52 am-5:43 pm

1 stop7h 51m

$53

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

seg 1/27

11:56 am-2:43 pm

2 stops25h 47m

$125

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

qua 1/22

7:58 pm-11:57 pm

Nonstop2h 59m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 15 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 December 20, 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.

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

Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to St. Charles (average of $311). 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 dezembro 22, 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 December 16, 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.

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 dezembro 22, 2024.
Get a feel of what it's like to fly with Frontier, Southwest and American 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.
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,804 reviews
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
9,537 reviews
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,594 reviews
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
9,028 reviews
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.2
Good
10,000 reviews
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.
  • 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 $53. However, be on the lookout for offers from Spirit Airlines and Delta, 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 Envoy Air (100%), Southwest (89%) or Alaska Airlines (88%) 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 $378, our data shows the cheapest flight currently is $163. When looking at the most popular route, (Phoenix Sky Harbor Intl - Lambert-St Louis), you can expect to pay $218 for that flight.

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to St. Charles (average of $311). 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 2,558,603 searches. Data last updated dezembro 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$151FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$131Average$498FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$296FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$412FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$278Average$422FlexibilityNo cancel feeOn-time63%
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