€306 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 27/8. 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
1 adult, Economy

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Cheap Flights to St. Charles

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to St. Charles that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to St. Charles

Thu, 4 Dec - Mon, 8 Dec
Scandinavian Airlines Logo
12:30 - 23:39DUB-STL
41h 09m2 stops
Scandinavian Airlines Logo
13:30 - 11:45STL-DUB
40h 15m2 stops
€629Scandinavian Airlines
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Thu, 4 Dec - Mon, 8 Dec
Scandinavian Airlines Logo
12:30 - 23:39DUB-STL
41h 09m2 stops
Scandinavian Airlines Logo
13:30 - 18:20STL-DUB
22h 50m2 stops
€630Scandinavian Airlines
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Sun, 31 Aug - Sun, 7 Sep
 Logo
06:45 - 13:32DUB-STL
36h 47m3 stops
 Logo
14:26 - 07:45STL-DUB
35h 19m3 stops
€659
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Sun, 31 Aug - Sun, 7 Sep
 Logo
06:40 - 13:32DUB-STL
36h 52m3 stops
 Logo
12:05 - 07:45STL-DUB
37h 40m3 stops
€705
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Fri, 21 Nov - Sat, 29 Nov
United Airlines Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
United Airlines Logo
15:14 - 10:20STL-DUB
13h 06m2 stops
€792United Airlines
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Fri, 21 Nov - Sat, 29 Nov
United Airlines Logo
09:00 - 15:29DUB-STL
12h 29m1 stop
United Airlines Logo
15:14 - 09:55STL-DUB
12h 41m2 stops
€794United Airlines
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Thu, 4 Dec - Mon, 8 Dec
American Airlines Logo
12:05 - 21:47DUB-STL
15h 42m2 stops
American Airlines Logo
14:44 - 08:40STL-DUB
11h 56m1 stop
€809American Airlines
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Thu, 4 Dec - Mon, 8 Dec
American Airlines Logo
10:00 - 21:47DUB-STL
17h 47m2 stops
American Airlines Logo
14:44 - 08:40STL-DUB
11h 56m1 stop
€810American Airlines
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Fri, 29 Aug - Fri, 5 Sep
Air Canada Logo
09:50 - 19:27DUB-STL
39h 37m2 stops
Air Canada Logo
09:15 - 07:45STL-DUB
16h 30m2 stops
€816Air Canada
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Thu, 28 Aug - Wed, 10 Sep
Air Canada Logo
09:20 - 10:40DUB-STL
31h 20m2 stops
Air Canada Logo
13:30 - 07:45STL-DUB
12h 15m1 stop
€830Air Canada
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Good to know – Book Cheap St. Charles Plane Tickets

Low seasonAugust
High seasonJuly
Cheapest flight€306
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from Dublin to St. Louis

FAQs - booking St. Charles flights

  • How to fly to St. Charles?

    You cannot fly directly to St. Charles. KAYAK recommends you fly to Lambert-St Louis (STL) (11.53 km from St. Charles). From there you can hire a car or take a taxi.

  • What airports are near St. Charles?

    The closest airport is Lambert-St Louis (STL) (11.53 km). KAYAK recommends you fly to Lambert-St Louis.

  • How far is Lambert-St Louis Airport from central St. Louis?

    Central St. Louis is 20 km away from Lambert-St Louis Airport.

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

    There is only 1 airport in St. Louis, called Lambert-St Louis Airport (STL). 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 travellers 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.

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.

Reviews of the top airlines flying to St. Charles

 
Need help choosing which airline to fly with from Ireland 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.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
8.0Crew
6.5Food
7.5Boarding
6.9Entertainment
Airline reviews

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

2.0 MediocreFernando, Jul 2025DFW - BHM
Read more American Airlines reviews

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

I didn't like that my paid for seat was changed 2 hours before my flight.

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Overall fine, but the delay was annoying and the reasons for the delay were not communicated. The crew on board were phenomenal!

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

Orlando to Canada, despite being close and an international flight, the plane was not at all comfortable. It felt like the chair was being pushed forward, in addition to not having a TV and having to choose from a tiny glass of drink, for example, water or soda. I couldn't have both. When I asked the flight attendant for an extra glass of water, she looked at me with an ugly face. This is ridiculous. They don't want to give water to passengers. I will never fly with this airline again in my life.

Very bad service the way back we was on the way for r two days very bad condition and waiting for luggage till now

Flight got canceled last minute and rescheduled 3 days later, as if we do not have jobs and children to return to. 5+ hours on hold with customer support with no answer. We booked a different airline and spent 3x as much to escape Montreal bc of Air Canada. Still haven’t heard from them. Boooo

Everything was good. Except Broken looking escape/exit doors over the wings need tending,

Pros: The airplane was new and had in-flight entertainment (tablet behind seats) with new movies instead of watching on personal devices. Cons: the flight time was changed without informing us. When I booked the flight, the time was 13:30pm (also in the email confirmation). However, when I reached the airport, the time was conveniently changed to 14:55pm. When I asked at the counter, they said the flight always took off at this time. The booking was made by Air Canada, but the flight was operated by United.

United had no (zero) record of our flight. It took over an hour of us standing in line with surly employee while others waited to get resolved. I have never experienced such poor service and poor empathy.

Took off on-time and staff was very nice. Got stuck on tarmac at ATL due to storms, but staff was still wonderful even though they were working and not getting paid.

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

The plane was filthy!!!! There were empty food wrappers in the pockets and worst of all a wad of hair where someone had obviously brushed their hair, cleaned out the brush and left the wad of hair in the pocket. It was the most disgusting thing I’ve ever seen!! The seats are so crammed together with NO leg room. The AC vent controllers do not adjust. I will likely not book another AC flight from Florida to Montreal.

This was an excellent experience for a very short flight.

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

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