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$38 Find cheap flights to St. Charles

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Charles departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/15
Mon 7/22

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Good to know

Low season

January

High season

June

Cheapest flight

$38
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Newark Liberty Airport to St. Louis

FAQs - booking St. Charles flights

  • How long is the flight to St. Charles?

    Flights from Philadelphia2h 21m
    Flights from Washington, D.C.2h 13m
    Flights from New York2h 40m
    Flights from Phoenix3h 06m
    Flights from Denver2h 17m
  • What is the cheapest flight to St. Louis?

    If traveling to St. Louis, the cheapest city to fly from in the last 3 days was Newark, with flights as low as $38 one-way and $48 round-trip. Flights from New York are the most searched and start at $153 for a return trip.

  • Which airlines fly to St. Louis?

    Southwest, American Airlines, and United Airlines usually have the most frequent connections from United States to St. Louis. See the amount of flights per week for popular airlines flying to St. Louis.

  • How to fly to St. Charles?

    You cannot fly directly to St. Charles. KAYAK recommends you fly to Lambert-St Louis (STL) (7.16 miles from St. Charles). From there you can rent a car or get a taxi.

  • What airports are near St. Charles?

    The closest airport is Lambert-St Louis (STL) (7.16 mi). Other nearby airports are Springfield Capital (SPI) (85 mi), Quincy Regional (UIN) (87.69 mi) or Columbia Regional (COU) (92.78 mi). KAYAK recommends you fly to Lambert-St Louis.

  • How far is St. Louis from central St. Louis?

    You’ll need to travel 13 miles to reach the St. Louis city center from St. Louis.

  • What is the name of St. Louis’s airport?

    All flights to St. Louis land at St. Louis. The airport code is STL,and it can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • How does KAYAK find such low prices on flights to St. Charles?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Charles.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Charles?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Charles is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Charles?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Charles with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Charles?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Charles up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to St. Charles

  • There is no major airport in St. Charles. It is instead served by Lambert-St Louis Airport.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Charles flight deals.

Top 5 airlines flying to St. Charles

Need help choosing which airline to fly with from the United States to St. Charles? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9283 reviews
7.3Food
7.9Comfort
7.3Entertainment
8.6Crew
8.2Boarding
Airline reviews

First time traveling on plane, everything was very easy for me.

8.0 ExcellentDavid, Jun 2024PAE - LAX
Read more about Alaska Airlines reviews

First time traveling on plane, everything was very easy for me.

The flight was delayed for about 3 hours . It would have been better if more explanation was given why. The flight crew was excellent and the service was great

The staff were nice and the plane was clean, but charging for everything beyond the ticket was, quite frankly, poor customer service on your part. A cross-country flight should include at least a sandwich and one checked bag. This was my first Alaska flight and was booked because of convenience, but it might not have been worth it because of the baggage fee. United had free wi-fi and free movies, at least. Southwest allows for one free checked bag and has prices comparable to yours.

I couldn't cancel or change my flight so I paid for nothing.

It was good - I was just squished in between two men so that was uncomfortable but otherwise everything was good

Flying any other airline, even Frontier is better than Alaska

Crew was great snacks could be approved upon. Healthier options

Whoever the lady was who helped me check my bags in at the kiosk was amazing. She had red hair and was maybe 5'2" or so. I never got her name, but she was an infinity sign on a scale of 1-10.

Pretty good. There was a little bit of waiting for an assigned seat that was a bit nerve wracking but the people working there were very reassuring and I eventually got to board the plane after they coordinated which seat I would be in

We arrived almost 1/2 hour early at Burbank......we sat and waited for gate to open and then for stairs to arrive to deboard us. That took almost an hour. The flight was beautiful....the arrival at Burbank was frustrating.

Flight was 3 hours late so only had an OK experience

It was very cold because the air conditioner was on high power, and my son got sick.

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Was 4 1/2 hours delayed. No food options, poor entertainment and cramped seats made worse by people in front reclining while we could not as in back row.

The baggage handlers broke the handle on my bag that they put under the plane that I checked on the jetway. They traded it out for a less quality bag in Tulsa. But, they said they would try to fix it. Bologna! There was no fixing that bag handle. Someone didn’t care how they treated the bag.

The entertainment wasn’t playing in the app or online.

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

I missed this flight due to delays on my previous flight.

This flight was awful all around. Delays on the tarmac at PHL before takeoff and at the tarmac in Chicago caused me to miss my final connection. This was completely avoidable, in my opinion.

The A321(?) model of the flight for 5+hrs has no seat back screens. Getting the american airlines wifi experience to watch movies on your own devices is not the same.

For the money that I paid it was a good deal. I sat in the back of the plane and didn't pick a seat and my wife I sat together. Mission accomplished.

Seats are weirdly bent, I felt hunched the entire time.

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

They never updated the boarding pass on their apps to show their delay

Online check-in was not user-friendly. Too many fees, not cost effective.

They wouldn’t let us on the flight even tho we were an hour early. No refund not even our bags that were prepaid

I brought a ticket and car rental through Travelocity. There was no where to add a KTN. So I thought i’d add it by looking up ticket on frontier website. I tried 3 times with the frontier chat bot to add my KTN it never updated my boarding pass. So then I tried showing up early to do it in person at the airport. The first employee update my ktn in the system and gave me a new boarding pass. I was sent back by tsa to join regular line. Then I was told to add my Ktn. It would cost me $25 extra. Given the length of the cue I did pay. Congratulations! BUT I will NEVER fly frontier again. Plus the plane was very old. It had actual ashtrays and old looking tray backs. Worst travel experience ever. Im warning my friends and family not to use frontier ever.

I did not enjoy the trip home on Frontier for several reasons: there is too much cost besides the flight, which was more than I would normally pay, then having to pay for luggage, and carry-on, seat (if you want to reserve when booking) then you must pay over $3 for a can of soda, and $4 for a snack. A cup of water is free.

Did not realize seats did not recline. Best to travel in an exit row... No question

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Book Cheap St. Charles Plane Tickets

Recent round-trip flight deals

7/10Wed
nonstopFrontier
1h 46mDFW-STL
7/17Wed
nonstopFrontier
1h 46mSTL-DFW
$48
7/15Mon
nonstopFrontier
1h 46mDFW-STL
7/24Wed
nonstopFrontier
1h 46mSTL-DFW
$53
7/2Tue
nonstopAmerican Airlines
2h 23mDCA-STL
7/5Fri
nonstopAmerican Airlines
2h 01mSTL-DCA
$169
7/2Tue
nonstopAmerican Airlines
2h 23mDCA-STL
7/4Thu
nonstopAmerican Airlines
2h 02mSTL-DCA
$170
7/1Mon
1 stopDelta
4h 05mIAD-STL
7/5Fri
1 stopDelta
4h 46mSTL-IAD
$188
7/2Tue
1 stopDelta
7h 19mDCA-STL
7/4Thu
1 stopDelta
6h 46mSTL-DCA
$188
8/21Wed
nonstopUnited Airlines
2h 21mIAD-STL
8/24Sat
nonstopUnited Airlines
2h 08mSTL-IAD
$189
8/21Wed
nonstopUnited Airlines
2h 21mIAD-STL
8/24Sat
1 stopUnited Airlines
5h 55mSTL-IAD
$194
9/18Wed
nonstopAlaska Airlines
3h 51mSEA-STL
9/21Sat
nonstopAlaska Airlines
4h 25mSTL-SEA
$237
8/28Wed
nonstopAlaska Airlines
3h 56mSEA-STL
9/2Mon
nonstopAlaska Airlines
4h 26mSTL-SEA
$257

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Recent one-way flight deals

9/10Tue
1 stopSpirit Airlines
8h 20mEWR-STL
$38
7/19Fri
nonstopFrontier
1h 46mDFW-STL
$50
7/4Thu
nonstopAmerican Airlines
2h 25mDCA-STL
$85
7/4Thu
nonstopAmerican Airlines
3h 35mLAX-STL
$93
7/4Thu
1 stopDelta
5h 22mIAD-STL
$94
7/3Wed
1 stopDelta
6h 44mDCA-STL
$94
8/21Wed
nonstopUnited Airlines
2h 21mIAD-STL
$95
7/1Mon
1 stopUnited Airlines
9h 28mSEA-STL
$124
9/30Mon
nonstopAlaska Airlines
3h 51mSEA-STL
$139
8/30Fri
nonstopAlaska Airlines
3h 56mSEA-STL
$159

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Last minute flights to St. Charles

Last minute flight, train and bus deals

6/17Mon
nonstopFrontier
1h 46mDFW-STL
6/26Wed
nonstopFrontier
1h 50mSTL-DFW
$102
6/17Mon
nonstopFrontier
1h 46mDFW-STL
6/24Mon
nonstopFrontier
1h 50mSTL-DFW
$112
6/19Wed
nonstopAmerican Airlines
1h 48mDFW-STL
6/25Tue
nonstopAmerican Airlines
1h 53mSTL-DFW
$261
6/19Wed
multi-stopAmerican Airlines
4h 47mDFW-STL
6/26Wed
nonstopAmerican Airlines
1h 53mSTL-DFW
$271
6/19Wed
multi-stopUnited Airlines
5h 41mSEA-STL
6/19Wed
multi-stopUnited Airlines
7h 48mSTL-SEA
$272
6/16Sun
multi-stopDelta
8h 56mSEA-STL
6/20Thu
multi-stopDelta
9h 43mSTL-SEA
$276
6/19Wed
multi-stopDelta
5h 45mDFW-STL
6/25Tue
multi-stopDelta
6h 34mSTL-DFW
$303
6/18Tue
multi-stopUnited Airlines
9h 10mSEA-STL
6/19Wed
multi-stopUnited Airlines
7h 48mSTL-SEA
$306
6/16Sun
nonstopAlaska Airlines
3h 50mSEA-STL
6/21Fri
nonstopAlaska Airlines
4h 25mSTL-SEA
$667
6/20Thu
nonstopAlaska Airlines
3h 50mSEA-STL
6/30Sun
nonstopAlaska Airlines
4h 28mSTL-SEA
$682

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