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DECSTLSat, 03 Oct
Fare checked before payment No hidden charges Transparent cancellation policy 24×7 booking support
Lowest fareUS$267United Airlines
Fastest3h 40mgate to gate
Options found13flights on this route
Find your flightDEC → STL
Available Flights & Fares
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Prices in USD
13 flight options
Fares are checked again before payment.
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Today's Airfare Highlights
Selected flight highlights for 03 Oct 2026.
Lowest fare$267United Airlines19:18
Earliest departure$267United Airlines19:18
Shortest duration$267United Airlines19:18
Night
00:00-05:59
No optionOpen full search for moreMorning
06:00-11:59
No optionOpen full search for moreAfternoon
12:00-17:59
No optionOpen full search for moreEvening
18:00-23:59
$267United Airlines at 19:18
Departure & Arrival Airport Details
Decatur (DEC)
Decatur Arpt
United States
GMT -6
Latitude: 39.834598541259766
Longitude: -88.8656997680664
St Louis (STL)
Lambert-St Louis Intl
United States
GMT -6
Latitude: 38.748697
Longitude: -90.370003
Distance: Decatur (DEC), United States to St Louis (STL), United States - 177.02 km
Flights shown for 03 Oct 2026. View all flights opens the complete search result.
Fares and hotel rates usually run higher around these dates. Booking earlier — or shifting a day or two — often costs less.
Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).
12OctColumbus DayMonday · in 30 daysPeak
12OctColumbus DayMonday · in 30 daysPeak
12OctIndigenous Peoples' DayMonday · in 30 daysPeak
11NovVeterans DayWednesday · in 60 days
26NovThanksgiving DayThursday · in 75 days
25DecChristmas DayFriday · in 104 days
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here — check the exact date for your travel year.
Compare your journey
How to travel Decatur to St Louis
Every option we can actually book for you, compared on price and journey time.
OptionFromJourney timeAvailability
Connecting flight₹25,505Longer — includes a stop13 options
Air distance is about 177 km. FlyX does not currently sell a bus on this pair.
Road distance and coach duration are approximate estimates from the air distance, not a timetable.
Airlines flying from Decatur to St Louis
Compare fares, stops, baggage and refundability across the airlines flying this route.
UN
United Airlines Flights
from $26713 flights
Fares from
$267
Non-stop
None in these results
Departures
13 — compare timings in the list above
Route Overview & Flight Facts
Fastest flight duration
3h 40m · United Airlines
First departure of the day
19:18 · United Airlines
Last departure of the day
19:18 · United Airlines
Options in this snapshot
13
Airport codes
Decatur–DEC, St Louis–STL
Fares and timings are indicative — the exact price is confirmed with the airline when you search.
Flight Schedule, Timings & Airfare Insights
Daily Flight Schedule & Travel Duration
Around 13 flights appear in the dated route snapshot. Departures run through the day — the first flight leaves around 19:18 and the last around 19:18. The fastest flight takes about 3h 40m.
Cheapest Airfare & Best Time to Book
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One-Way vs Round-Trip Fare Comparison
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How to Book Cheap Flights on FlyX
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Why Book Your Flight with FlyX?
Compare the available Decatur to St Louis options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.
Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.
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Frequently Asked Questions
Is it worth booking Decatur to St Louis flights in advance?
There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. Across the dates currently loaded for Decatur to St Louis, Saturday shows the lowest fare at $267. That is an observed snapshot for these dates, not a rule that holds every week.
How far is Decatur from St Louis by air?
The direct air distance between Decatur (DEC) and St Louis (STL) is about 177 km. Actual flight time varies with the routing the airline files and with winds on the day.
Are there non-stop flights from DEC to STL?
Not for the dates currently loaded - every Decatur to St Louis option showing right now has at least one stop. Non-stop service can differ by season and by day, so it is worth checking nearby dates before you decide.
Which airlines fly Decatur to St Louis?
United Airlines is showing on this route for the dates currently loaded. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.
How long is the flight from Decatur to St Louis?
Every option currently loaded has at least one stop, and the shortest total journey time is about 3h 40m including the layover. Non-stop service on this route can vary by season and by day.
What is the cheapest Decatur to St Louis flight fare?
The lowest fare showing on Decatur to St Louis for the dates currently loaded is $267. Fares on the same dates run up to $520, depending on airline, timing and fare type. Airline pricing moves continuously, so treat this as a dated observation rather than a fixed price.
Why does the price change after clicking Book Now?
Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay - if it has moved, you see the new figure before any payment.
Before you book this route
Check the airport codes DEC–STL, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.
Where these fares come from
The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price — run a search to see what is available for your own dates.
Last checked .
Check official travel requirements
Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.
Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.
The DEC to STL cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.
Approx route distance: 177.02 km.
Before you book
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Lowest Decatur to St Louis airfare today, in 30 days and in 90 days
Cheapest Fare
Fare
Date
Airline
Departure
Lowest Airfare Today
$267
03/10/2026
United Airlines
19:18
Cheapest Airfare Within 30 Days
$261
12/10/2026
United Airlines
19:18
Cheapest Airfare Within 90 Days
$253
11/12/2026
United Airlines
19:18
Book Decatur to St Louis Flight Tickets on FlyX
Planning to fly from Decatur to St Louis? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.
Decatur to St Louis Flight Distance, Duration and Time
The aerial distance between Decatur and St Louis is approximately 177 KM. The flight duration ranges from 3H :40 M up to 28H :24 M depending on whether you book a non-stop flight or a connecting schedule with layovers.
Decatur to St Louis Flight Schedule and Timing
Around 13 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from Decatur at 19:18, while the last night flight leaves at 19:18. Flights depart from Decatur Arpt and land at Lambert-St Louis Intl.
Flight Route Details & Analysis
Flight Details
Information
Route
Decatur to St Louis
Aerial Distance
177 KM
Flight Duration
3H :40 M - 28H :24 M
Airport Codes
Decatur - DEC, St Louis - STL
Total Flights Available
13 flights (0 direct)
First Flight Departure
Departs at 19:18
Last Flight Departure
Departs at 19:18
Early Morning Flights (12 AM - 8 AM)
0 direct/indirect flights
Morning Flights (8 AM - 12 PM)
0 direct/indirect flights
Afternoon Flights (12 PM - 4 PM)
0 direct/indirect flights
Evening Flights (4 PM - 8 PM)
13 direct/indirect flights
Night Flights (8 PM - 12 AM)
0 direct/indirect flights
Airport Information & Terminals
DEC: Decatur airport. Decatur airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
STL: St. Louis airport. St. Louis airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
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Decatur Arpt