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Find cheap flights to St. Charles from $39

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 5/14. 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
Thu 6/6
Thu 6/13

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Low season

January

High season

May

Cheapest flight

$39
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Los Angeles 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 11m
    Flights from New York2h 39m
    Flights from Phoenix3h 08m
    Flights from Denver2h 19m
  • 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 Los Angeles, with flights as low as $39 one-way and $68 round-trip. Flights from New York are the most searched and start at $244 for a return trip.

  • Which airlines fly to St. Louis?

    Southwest, American Airlines, and Delta 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 9147 reviews
8.2Boarding
7.3Food
7.3Entertainment
8.6Crew
7.9Comfort
Airline reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

6.0 GoodAnonymous, May 2024SEA - HNL
Read more about Alaska Airlines reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

The flight was great. The pilot was great. It was really annoying that the staff had facemasks on. Hard to hear what they’re saying when a mask is covering their mouth. I enjoyed the flight, but there was a crying baby in front of me. You guys should offer flights baby free. I would be very into that me and the person next to me discussed how they should make free flights for all of us that don’t have kids. I wouldn’t mind paying extra to not have to deal with the smell of a dirty diaper or screaming of a child. Also, if they had a separate room, the babies could be sent to the back with a curtain or something muddle the horrible sounds.

Smooth. Courteous. Fun. One problem: the wheels on my checked roller back were broken when I picked up baggage at destination. Must have happened during flight baggage handling but I don’t know where.

Staff very helpful and friendly, in flight entertainment poor. Flight left late and thus arrived 20 minutes late to final destination.

Ground crew was great in Austin, flight crew left a lot to be desired. Not particularly friendly, helpful or nice.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

First time flying with Alaska and the staff were All professional from checkin to departure! I do plan to book more flights with Alaska. Thanks

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

Boarded the plain and had to wait 1 hour for crew Captain to arrive from another flight

It was fine since it ensure we went to our destination in time.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Book Cheap St. Charles Plane Tickets

Recent round-trip flight deals

6/26Wed
nonstopFrontier
1h 46mDFW-STL
7/1Mon
nonstopFrontier
1h 50mSTL-DFW
$68
6/15Sat
nonstopFrontier
2h 09mDEN-STL
6/15Sat
nonstopFrontier
2h 30mSTL-DEN
$69
5/28Tue
1 stopDelta
7h 20mIAD-STL
5/30Thu
1 stopDelta
3h 40mSTL-IAD
$188
7/2Tue
nonstopAmerican Airlines
1h 54mDFW-STL
7/6Sat
nonstopAmerican Airlines
1h 52mSTL-DFW
$189
6/1Sat
1 stopDelta
5h 21mDEN-STL
6/5Wed
1 stopDelta
5h 44mSTL-DEN
$192
10/1Tue
1 stopAmerican Airlines
8h 05mSEA-STL
10/8Tue
1 stopAmerican Airlines
10h 12mSTL-SEA
$195
5/28Tue
1 stopUnited Airlines
6h 50mIAD-STL
5/30Thu
nonstopUnited Airlines
2h 10mSTL-IAD
$210
8/26Mon
1 stopUnited Airlines
4h 37mIAD-STL
8/30Fri
1 stopUnited Airlines
5h 55mSTL-IAD
$237
5/28Tue
nonstopAlaska Airlines
4h 00mSEA-STL
5/29Wed
nonstopAlaska Airlines
4h 19mSTL-SEA
$237
5/28Tue
nonstopAlaska Airlines
4h 00mSEA-STL
5/30Thu
nonstopAlaska Airlines
4h 14mSTL-SEA
$257

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Recent one-way flight deals

5/14Tue
1 stopSpirit Airlines
10h 03mLAX-STL
$39
5/21Tue
1 stopSpirit Airlines
10h 03mLAX-STL
$40
7/3Wed
nonstopFrontier
2h 09mDEN-STL
$44
8/6Tue
nonstopFrontier
2h 06mDEN-STL
$45
6/4Tue
nonstopAmerican Airlines
2h 16mDCA-STL
$85
6/4Tue
1 stopDelta
7h 35mDEN-STL
$88
6/4Tue
1 stopDelta
4h 23mIAD-STL
$94
7/2Tue
nonstopAmerican Airlines
1h 46mDFW-STL
$95
7/2Tue
1 stopUnited Airlines
6h 30mDFW-STL
$104
8/19Mon
nonstopUnited Airlines
2h 21mIAD-STL
$129

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Last minute flights to St. Charles

Last minute flight, train and bus deals

5/12Sun
multi-stop
9h 30mLGA-STL
5/21Tue
multi-stop
11h 20mSTL-LGA
$178
5/12Sun
multi-stop
9h 30mLGA-STL
5/21Tue
multi-stop
9h 55mSTL-LGA
$191
5/11Sat
nonstopFrontier
2h 06mDEN-STL
5/13Mon
nonstopFrontier
2h 31mSTL-DEN
$191
5/11Sat
multi-stopFrontier
10h 48mLAX-STL
5/13Mon
multi-stopFrontier
12h 47mSTL-LAX
$229
5/8Wed
multi-stopAmerican Airlines
9h 16mSEA-STL
5/11Sat
multi-stopAmerican Airlines
8h 21mSTL-SEA
$316
5/9Thu
multi-stopDelta
6h 15mSEA-STL
5/11Sat
multi-stopDelta
6h 33mSTL-SEA
$357
5/8Wed
nonstopUnited Airlines
2h 55mEWR-STL
5/15Wed
multi-stopUnited Airlines
5h 19mSTL-EWR
$360
5/8Wed
multi-stopDelta
4h 41mEWR-STL
5/21Tue
multi-stopDelta
4h 29mSTL-EWR
$370
5/8Wed
multi-stopUnited Airlines
5h 21mLGA-STL
5/15Wed
multi-stopUnited Airlines
5h 02mSTL-LGA
$370
5/9Thu
multi-stopAmerican Airlines
8h 49mSEA-STL
5/11Sat
multi-stopAmerican Airlines
8h 21mSTL-SEA
$381

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