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Decatur (DEC) to St. Louis (STL) Flights from ₹18,227

Fares on this route currently start from ₹18,227. Compare live DEC to STL prices, non-stop and connecting flights, departure times and airline choices before booking. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
DEC → STL Approx. 177.02 km 14 Jul 2026 Live inventory
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Showing 22 live flights
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
14h 4m
1 Stop
⏱ ORD · 11h 20mORD Airport
08:49
07/15/2026
+1
STL
St Louis Lambert International Airport
₹18,227
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
4h 44m
1 Stop
⏱ ORD · 2h 7mORD Airport
23:29
07/14/2026
STL
St Louis Lambert International Airport
₹24,892
per person
✕ Non-refundable9 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
17h 26m
1 Stop
⏱ ORD · 14h 47mORD Airport
12:11
07/15/2026
+1
STL
St Louis Lambert International Airport
₹29,457
per person
✕ Non-refundable6 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
22h 42m
1 Stop
⏱ ORD · 20h 6mORD Airport
17:27
07/15/2026
+1
STL
St Louis Lambert International Airport
₹29,457
per person
✕ Non-refundable🔥 Last 3 seats6 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
23h 28m
1 Stop
⏱ ORD · 20h 52mORD Airport
18:13
07/15/2026
+1
STL
St Louis Lambert International Airport
₹29,457
per person
✕ Non-refundable🔥 Last 1 seats6 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
19h 38m
1 Stop
⏱ ORD · 17h 2mORD Airport
14:23
07/15/2026
+1
STL
St Louis Lambert International Airport
₹29,457
per person
✕ Non-refundable6 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
21h 1m
1 Stop
⏱ ORD · 18h 27mORD Airport
15:46
07/15/2026
+1
STL
St Louis Lambert International Airport
₹32,154
per person
✕ Non-refundable6 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
24h 38m
1 Stop
⏱ ORD · 22h 2mORD Airport
19:23
07/15/2026
+1
STL
St Louis Lambert International Airport
₹38,202
per person
✕ Non-refundable🔥 Last 3 seats4 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
17h 32m
2 Stops
⏱ ORD · 9h 37mORD Airport⏱ ATL · 3h 11mATL Airport
12:17
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
20h 3m
2 Stops
⏱ ORD · 12h 10mORD Airport⏱ ATL · 3h 3mATL Airport
14:48
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
25h 52m
2 Stops
⏱ ORD · 18h 14mORD Airport⏱ DTW · 3h 20mDTW Airport
20:37
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
20h 28m
2 Stops
⏱ ORD · 14h 1mORD Airport⏱ MSP · 1h 59mMSP Airport
15:13
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
17h 32m
2 Stops
⏱ ORD · 10h 42mORD Airport⏱ ATL · 2h 3mATL Airport
12:17
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
15h 43m
2 Stops
⏱ ORD · 10h 37mORD Airport⏱ MSP · 0h 51mMSP Airport
10:28
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
20h 28m
2 Stops
⏱ ORD · 12h 34mORD Airport⏱ MSP · 3h 34mMSP Airport
15:13
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
17h 32m
2 Stops
⏱ ORD · 10h 7mORD Airport⏱ ATL · 2h 43mATL Airport
12:17
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
22h 39m
2 Stops
⏱ ORD · 17h 25mORD Airport⏱ DTW · 1h 10mDTW Airport
17:24
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
18h 20m
2 Stops
⏱ ORD · 13h 26mORD Airport⏱ DTW · 0h 53mDTW Airport
13:05
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
18h 20m
2 Stops
⏱ ORD · 11h 12mORD Airport⏱ DTW · 2h 58mDTW Airport
13:05
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
18h 20m
2 Stops
⏱ ORD · 12h 59mORD Airport⏱ DTW · 1h 5mDTW Airport
13:05
07/15/2026
+1
STL
St Louis Lambert International Airport
₹40,797
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
22h 1m
2 Stops
⏱ ORD · 14h 1mORD Airport⏱ MSP · 3h 38mMSP Airport
16:46
07/15/2026
+1
STL
St Louis Lambert International Airport
₹42,898
per person
✕ Non-refundable2 fare options
United Airlines
UA-5064
18:45
07/14/2026
DEC
Decatur Airport
15h 49m
1 Stop
⏱ ORD · 13h 7mORD Airport
10:34
07/15/2026
+1
STL
St Louis Lambert International Airport
₹64,259
per person
✕ Non-refundable4 fare options
😕 No flights match your filters.
Decatur (DEC)
📍 Decatur Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 39.834598541259766
📐 Longitude: -88.8656997680664
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003

✈ Distance: Decatur,USA to St. Louis,USA — 177.02 km

📅 Results on this page are loaded for 14 Jul 2026. Click Load more flights to expand the full list on this page.

Decatur to St. Louis — what to expect when booking

The DEC–STL route is served by multiple carriers throughout the year. Fares on this route can move quickly — a price available now may not be there 30 minutes later.

If your dates are flexible, try shifting your departure by a day or two using the date strip above. Mid-week departures often show lower base fares compared to weekend starts on many routes.

The distance between Decatur,USA and St. Louis,USA is approximately 177.02 km.

Before you book

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More flights from Decatur (DEC)
1 routes
Decatur → Chicago
DEC → ORD
More flights from St. Louis (STL)
55 routes
St. Louis → Atlanta
STL → ATL
St. Louis → Boston
STL → BOS
St. Louis → Burlington IA
STL → BRL
St. Louis → Cancun
STL → CUN
St. Louis → Cape Girardeau
STL → CGI
St. Louis → Charlotte
STL → CLT
St. Louis → Chicago
STL → MDW
St. Louis → Cincinnati
STL → CVG
St. Louis → Cleveland
STL → CLE
St. Louis → Columbus
STL → CMH
St. Louis → Dallas
STL → DAL
St. Louis → Decatur
STL → DEC
St. Louis → Denver
STL → DEN
St. Louis → Detroit
STL → DTW
St. Louis → Fort Lauderdale
STL → FLL
St. Louis → Fort Leonard Wood
STL → TBN
St. Louis → Fort Myers
STL → RSW
St. Louis → Fort Worth
STL → DFW
St. Louis → Grand Rapids
STL → GRR
St. Louis → Houston
STL → IAH
St. Louis → Houston
STL → HOU
St. Louis → Jonesboro
STL → JBR
St. Louis → Kansas City
STL → MCI
St. Louis → Kirksville
STL → IRK
St. Louis → Las Vegas
STL → LAS
St. Louis → Little Rock
STL → LIT
St. Louis → Los Angeles
STL → LAX
St. Louis → Marion
STL → MWA
St. Louis → Miami
STL → MIA
St. Louis → Milwaukee
STL → MKE
St. Louis → Minneapolis
STL → MSP
St. Louis → Montego Bay
STL → MBJ
St. Louis → Nashville
STL → BNA
St. Louis → New Orleans
STL → MSY
St. Louis → New York
STL → JFK
St. Louis → Oklahoma City
STL → OKC
St. Louis → Omaha
STL → OMA
St. Louis → Orlando
STL → MCO
St. Louis → Owensboro
STL → OWB
St. Louis → Philadelphia
STL → PHL
St. Louis → Phoenix
STL → PHX
St. Louis → Pittsburgh International Airport
STL → PIT
St. Louis → Puerto Vallarta
STL → PVR
St. Louis → Punta Cana
STL → PUJ
St. Louis → Quincy
STL → UIN
St. Louis → Raleigh
STL → RDU
St. Louis → Salt Lake City
STL → SLC
St. Louis → San Antonio
STL → SAT
St. Louis → San Diego
STL → SAN
St. Louis → San Francisco
STL → SFO
St. Louis → Seattle
STL → SEA
St. Louis → Tampa
STL → TPA
St. Louis → Toronto
STL → YYZ
St. Louis → Tulsa
STL → TUL
St. Louis → Washington DC
STL → DCA
❓ Frequently asked questions — Decatur to St. Louis flights

Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.

The straight-line distance between Decatur,USA (DEC) and St. Louis,USA (STL) is approximately 177.02 km. Actual flying distance may vary slightly depending on routing.

Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.

Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.