What is the cheapest month to fly to St. Charles?

Currently, August is the cheapest month in which you can book a flight to St. Charles . Flying to St. Charles in March will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Can I find cheaper flights to St. Charles if I am willing to have layovers?

Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Charles on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to St. Charles?

Based on reviews from Cheapflights users, Frontier is rated the highest out of the airlines that fly to St. Charles.

How much is a round-trip flight to St. Charles?

A round-trip flight to St. Charles will typically cost around $291, however they can be found for as little as $59.

Where does the fastest flight to St. Charles depart from?

For those looking to save time traveling to St. Charles, Kansas City offers the quickest one-way flight (1 hour 0 minutes).

Does Lambert-St Louis have rental cars?

Yes. Those touching down at Lambert-St Louis can take advantage of the rental car services offered upon their arrival.

Are there hotels close to Lambert-St Louis?

Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 mi away from Lambert-St Louis).

$110+ Flights to St. Charles

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Flights to St. Charles in 2025

Popular in	December
Cheapest in	January
Average price	$314
Round-trip from	$211
One-way from	$110

Highest demand for flights based on searches. 8% potential increase in price ($30 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

From New York to Lambert-St Louis

Search Deals

One-way flight from New York to St. Charles

Search Deals

Find flight deals to St. Charles

Cheapest flights to St. Charles
Explore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on April 30, 2025.

Thu 5/1510:00 pmLGA - STL

1 stop27h 14mFrontier

Mon 5/195:45 pmSTL - LGA

1 stop26h 14mFrontier

Deal found 4/28$211

Thu 5/156:59 amJFK - STL

1 stop18h 07mFrontier

Mon 5/199:55 pmSTL - JFK

1 stop30h 35mFrontier

Deal found 4/28$211

Tue 5/2010:19 amLGA - STL

1 stop6h 02mAmerican Airlines

Tue 5/206:00 pmSTL - LGA

Nonstop2h 25mAmerican Airlines

Deal found 4/28$214

Sat 5/1710:00 pmLGA - STL

1 stop27h 06mMultiple Airlines

Sat 5/2410:10 amSTL - LGA

1 stop12h 14mMultiple Airlines

Deal found 4/28$220

Wed 6/46:59 pmLGA - STL

Nonstop2h 49mDelta

Wed 6/116:45 pmSTL - LGA

Nonstop2h 30mDelta

Deal found 4/29$221

Wed 6/411:25 amLGA - STL

1 stop5h 05mUnited Airlines

Thu 6/56:30 amSTL - LGA

1 stop4h 45mUnited Airlines

Deal found 4/29$236

Sat 5/245:45 pmLGA - STL

Nonstop2h 50mSouthwest

Tue 5/277:45 pmSTL - LGA

Nonstop2h 25mSouthwest

Deal found 4/27$237

Thu 6/126:30 amLGA - STL

1 stop11h 34mSpirit Airlines

Sun 6/156:12 pmSTL - LGA

1 stop17h 00mSpirit Airlines

Deal found 4/27$238

Tue 5/278:05 amJFK - STL

1 stop7h 30mDelta

Tue 6/31:09 pmSTL - JFK

1 stop7h 51mDelta

Deal found 4/29$257

Wed 8/278:00 amEWR - STL

1 stop5h 24mDelta

Mon 9/17:05 pmSTL - EWR

1 stop5h 00mDelta

Deal found 4/28$261

Sun 5/410:00 pmEWR - STL

Nonstop2h 59mUnited Airlines

Mon 6/306:00 amSTL - EWR

Nonstop2h 35mUnited Airlines

Deal found 4/29$268

Sat 7/56:36 amJFK - STL

1 stop10h 41mAmerican Airlines

Tue 7/86:00 amSTL - JFK

1 stop6h 28mAmerican Airlines

Deal found 4/29$269

Best flights to St. Charles
Discover carefully curated flight deals to St. Charles that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Thu 5/1510:00 pmLGA - STL

1 stop27h 14mFrontier

Mon 5/195:45 pmSTL - LGA

1 stop26h 14mFrontier

Deal found 4/29$211

Tue 5/2010:19 amLGA - STL

1 stop6h 02mAmerican Airlines

Tue 5/206:00 pmSTL - LGA

Nonstop2h 25mAmerican Airlines

Deal found 4/28$214

Sat 5/1710:00 pmLGA - STL

1 stop27h 06mMultiple Airlines

Sat 5/2410:10 amSTL - LGA

1 stop12h 14mMultiple Airlines

Deal found 4/28$220

Wed 6/46:59 pmLGA - STL

Nonstop2h 49mDelta

Wed 6/116:45 pmSTL - LGA

Nonstop2h 30mDelta

Deal found 4/29$221

Wed 6/411:25 amLGA - STL

1 stop5h 05mUnited Airlines

Wed 6/1111:20 amSTL - LGA

1 stop5h 02mUnited Airlines

Deal found 4/28$236

Sat 5/245:45 pmLGA - STL

Nonstop2h 50mSouthwest

Tue 5/277:45 pmSTL - LGA

Nonstop2h 25mSouthwest

Deal found 4/27$237

Thu 6/126:30 amLGA - STL

1 stop11h 34mSpirit Airlines

Sun 6/156:12 pmSTL - LGA

1 stop17h 00mSpirit Airlines

Deal found 4/27$238

Thu 5/1511:42 amEWR - STL

1 stop24h 55mSun Country Air

Sun 5/187:30 amSTL - EWR

1 stop26h 14mSun Country Air

Deal found 4/28$375

Thu 5/156:59 amJFK - STL

1 stop18h 07mFrontier

Sat 5/175:45 pmSTL - JFK

1 stop15h 40mFrontier

Deal found 4/28$211

Tue 5/278:05 amJFK - STL

1 stop7h 30mDelta

Tue 6/31:09 pmSTL - JFK

1 stop7h 51mDelta

Deal found 4/29$257

Sat 9/277:29 amJFK - STL

1 stop17h 30mAlaska Airlines

Sat 10/47:00 amSTL - JFK

2 stops31h 20mAlaska Airlines

Deal found 4/28$514

Sat 7/56:36 amJFK - STL

1 stop10h 41mAmerican Airlines

Tue 7/86:00 amSTL - JFK

1 stop6h 28mAmerican Airlines

Deal found 4/29$269

Last-minute flights to St. Charles
Discover last-minute flight deals to St. Charles. Data last updated April 30, 2025 and is based on user searches.

Sun 5/410:00 pmEWR - STL

Nonstop2h 59mUnited Airlines

Mon 6/306:00 amSTL - EWR

Nonstop2h 35mUnited Airlines

Deal found 4/29$268

Sun 5/45:55 amEWR - STL

1 stop4h 33mDelta

Mon 6/3010:48 amSTL - EWR

1 stop4h 48mDelta

Deal found 4/29$288

Tue 5/66:59 amJFK - STL

1 stop18h 07mFrontier

Fri 5/95:55 pmSTL - JFK

1 stop15h 30mFrontier

Deal found 4/29$211

Tue 5/68:53 amLGA - STL

Nonstop2h 50mAmerican Airlines

Tue 5/66:00 pmSTL - LGA

Nonstop2h 25mAmerican Airlines

Deal found 4/28$275

Tue 5/66:00 amLGA - STL

1 stop12h 15mSpirit Airlines

Sat 5/1010:10 amSTL - LGA

1 stop12h 14mSpirit Airlines

Deal found 4/27$285

Tue 5/68:25 amLGA - STL

1 stop4h 54mUnited Airlines

Tue 5/65:29 pmSTL - LGA

1 stop4h 49mUnited Airlines

Deal found 4/28$295

Tue 5/64:30 pmJFK - STL

1 stop8h 06mDelta

Wed 5/76:00 amSTL - JFK

1 stop7h 39mDelta

Deal found 4/28$295

Wed 5/76:30 amLGA - STL

Nonstop2h 37mDelta

Tue 5/136:00 amSTL - LGA

1 stop4h 47mDelta

Deal found 4/29$300

Thu 5/810:00 pmLGA - STL

1 stop27h 14mFrontier

Mon 5/125:45 pmSTL - LGA

1 stop26h 14mFrontier

Deal found 4/28$221

Thu 5/810:00 pmLGA - STL

1 stop27h 14mMultiple Airlines

Sat 5/1010:10 amSTL - LGA

1 stop12h 14mMultiple Airlines

Deal found 4/29$264

Fri 5/95:45 amEWR - STL

1 stop8h 07mAmerican Airlines

Tue 5/135:00 amSTL - EWR

1 stop4h 27mAmerican Airlines

Deal found 4/29$328

Fri 5/93:55 pmJFK - STL

1 stop6h 57mAmerican Airlines

Tue 5/131:59 pmSTL - JFK

1 stop6h 56mAmerican Airlines

Deal found 4/29$328

One-way flights to St. Charles
Search for one-way flight options to St. Charles. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Thu 6/126:30 amLGA - STL

1 stop8h 10mFrontier

Deal found 4/29$110

Sat 5/106:59 amJFK - STL

1 stop18h 07mFrontier

Deal found 4/29$110

Tue 6/176:59 pmLGA - STL

Nonstop2h 54mDelta

Deal found 4/29$111

Fri 5/3011:55 amSWF - STL

1 stop22h 20mMultiple Airlines

Deal found 4/29$113

Thu 6/126:30 amLGA - STL

1 stop11h 34mSpirit Airlines

Deal found 4/28$117

Sat 5/105:54 amLGA - STL

1 stop19h 12mMultiple Airlines

Deal found 4/29$118

Tue 7/226:30 pmLGA - STL

1 stop5h 15mUnited Airlines

Deal found 4/27$121

Tue 7/151:29 pmJFK - STL

1 stop6h 18mDelta

Deal found 4/28$121

Sat 6/217:30 pmEWR - STL

Nonstop2h 56mUnited Airlines

Deal found 4/28$124

Fri 7/411:00 amEWR - STL

1 stop7h 04mSpirit Airlines

Deal found 4/28$125

Tue 5/135:30 amEWR - STL

2 stops14h 11mMultiple Airlines

Deal found 4/28$126

Thu 7/36:59 amLGA - STL

Nonstop2h 47mAmerican Airlines

Deal found 4/28$127

Cheapflights Fare Finder

Use the filters below to find and compare flights to St. Charles that are best for you.

Fly from

Route

Depart

Return

Price

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 5/15

10:00 pm-12:14 am

1 stop27h 14m

Lambert-St Louis

Mon 5/19

5:45 pm-8:59 pm

1 stop26h 14m

$211

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Thu 5/15

6:59 am-12:06 am

1 stop18h 07m

Lambert-St Louis

Mon 5/19

9:55 pm-5:30 am

1 stop30h 35m

$211

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 5/20

10:19 am-3:21 pm

1 stop6h 02m

Lambert-St Louis

Tue 5/20

6:00 pm-9:25 pm

Nonstop2h 25m

$214

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 5/17

10:00 pm-12:06 am

1 stop27h 06m

Lambert-St Louis

Sat 5/24

10:10 am-11:24 pm

1 stop12h 14m

$220

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 6/4

6:59 pm-8:48 pm

Nonstop2h 49m

Lambert-St Louis

Wed 6/11

6:45 pm-10:15 pm

Nonstop2h 30m

$221

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 6/4

11:25 am-3:30 pm

1 stop5h 05m

Lambert-St Louis

Thu 6/5

6:30 am-12:15 pm

1 stop4h 45m

$236

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 5/24

5:45 pm-7:35 pm

Nonstop2h 50m

Lambert-St Louis

Tue 5/27

7:45 pm-11:10 pm

Nonstop2h 25m

$237

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 6/12

6:30 am-5:04 pm

1 stop11h 34m

Lambert-St Louis

Sun 6/15

6:12 pm-12:12 pm

1 stop17h 00m

$238

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Tue 5/27

8:05 am-2:35 pm

1 stop7h 30m

Lambert-St Louis

Tue 6/3

1:09 pm-10:00 pm

1 stop7h 51m

$257

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sun 5/4

10:00 pm-11:59 pm

Nonstop2h 59m

Lambert-St Louis

Mon 6/30

6:00 am-9:35 am

Nonstop2h 35m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 42 results

...

Best time to book a flight to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles 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.

Cheapflights Insights

Everything you need to know about your flight to St. Charles

When is the best time to book a flight to St. Charles?

The best time to book flights to St. Charles is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to St. Charles?

On average, a flight from New York to St. Charles takes 7 hours 58 minutes. Flights to St. Charles from other popular cities in USA will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to St. Charles?

Users looking for the lowest fares to St. Charles should consider flying on Monday evenings, when prices are typically cheapest. Budget-minded travelers will want to avoid Sunday mornings, when prices are usually at their highest.

What are the most popular airlines that fly to St. Charles?

The most popular airlines flying from New York to St. Charles are United Airlines, Delta and American Airlines.

United Airlines

From $258

Delta

From $197

American Airlines

From $198

Southwest

From $214

What are the cheapest airlines that fly to St. Charles?

The cheapest airlines flying from New York to St. Charles are Frontier, Spirit Airlines and Delta.

Rainfall in St. Charles 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

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

Peruse reviews from past customers who have flown Alaska Airlines, Southwest and Delta to St. Charles to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,961 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,295 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,929 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

FAQs about flying to St. Charles

Can I find cheaper flights to St. Charles if I am willing to have layovers?
Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Charles on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to St. Charles?
Based on reviews from Cheapflights users, Frontier is rated the highest out of the airlines that fly to St. Charles.
How much is a round-trip flight to St. Charles?
A round-trip flight to St. Charles will typically cost around $291, however they can be found for as little as $59.
Where does the fastest flight to St. Charles depart from?
For those looking to save time traveling to St. Charles, Kansas City offers the quickest one-way flight (1 hour 0 minutes).
Does Lambert-St Louis have rental cars?
Yes. Those touching down at Lambert-St Louis can take advantage of the rental car services offered upon their arrival.
Are there hotels close to Lambert-St Louis?
Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 mi away from Lambert-St Louis).

See more FAQs

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$110+ Cheap flights to St. Charles

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights to St. Charles with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Flights to St. Charles in 2025

Find the latest flights to St. Charles in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on April 30, 2025.

Popular in

Cheapest in

Average price

Round-trip from

One-way from

Find flight deals to St. Charles

Cheapest flights to St. CharlesExplore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on April 30, 2025.

Explore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on April 30, 2025.

Cheapflights Fare Finder

Locate flights to St. Charles that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on April 30, 2025.

Use the filters below to find and compare flights to St. Charles that are best for you.

Best time to book a flight to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight to St. Charles

When is the best time to book a flight to St. Charles?

Use this chart to determine the optimal time to book a round-trip flight from New York to St. Charles. Price data was last updated on April 25, 2025.

How long is the flight to St. Charles?

When is the cheapest time to fly to St. Charles?

Use this chart to determine the cheapest time to fly round-trip from New York to St. Charles. Price data was last updated on December 16, 2024.

What are the most popular airlines that fly to St. Charles?

What are the cheapest airlines that fly to St. Charles?

Rainfall in St. Charles by month

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

Temperature in St. Charles by month

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

Reviews of airlines servicing St. Charles

Peruse reviews from past customers who have flown Alaska Airlines, Southwest and Delta to St. Charles to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

FAQs about flying to St. Charles

Can I find cheaper flights to St. Charles if I am willing to have layovers?

What is the best airline to fly to St. Charles?

How much is a round-trip flight to St. Charles?

Where does the fastest flight to St. Charles depart from?

Does Lambert-St Louis have rental cars?

Are there hotels close to Lambert-St Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to St. Charles by cabin class

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Cheapest flights to St. Charles
Explore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on April 30, 2025.