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St. Louis (STL) to Decatur (DEC) Flights from ₹17,633

Fares on this route currently start from ₹17,633. Compare live STL to DEC 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.
STL → DEC Approx. 177.02 km 14 Jul 2026 Live inventory
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Showing 25 of 53 live flights
United Airlines
UA-1382
13:13
07/14/2026
STL
St Louis Lambert International Airport
19h 44m
1 Stop
⏱ ORD · 17h 2mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹17,633
per person
✕ Non-refundable5 fare options
United Airlines
UA-5572
09:20
07/14/2026
STL
St Louis Lambert International Airport
23h 37m
1 Stop
⏱ ORD · 20h 53mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹17,633
per person
✕ Non-refundable5 fare options
United Airlines
UA-1639
17:59
07/14/2026
STL
St Louis Lambert International Airport
23h 57m
1 Stop
⏱ ORD · 21h 15mORD Airport
17:56
07/15/2026
+1
DEC
Decatur Airport
₹17,633
per person
✕ Non-refundable5 fare options
United Airlines
UA-5572
09:20
07/14/2026
STL
St Louis Lambert International Airport
8h 36m
1 Stop
⏱ ORD · 5h 53mORD Airport
17:56
07/14/2026
DEC
Decatur Airport
₹17,797
per person
✕ Non-refundable
United Airlines
UA-2805
06:00
07/14/2026
STL
St Louis Lambert International Airport
11h 56m
1 Stop
⏱ ORD · 9h 15mORD Airport
17:56
07/14/2026
DEC
Decatur Airport
₹17,797
per person
✕ Non-refundable
United Airlines
UA-1639
17:59
07/14/2026
STL
St Louis Lambert International Airport
14h 58m
1 Stop
⏱ ORD · 12h 15mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹17,797
per person
✕ Non-refundable
United Airlines
UA-1382
13:13
07/14/2026
STL
St Louis Lambert International Airport
4h 43m
1 Stop
⏱ ORD · 2h 2mORD Airport
17:56
07/14/2026
DEC
Decatur Airport
₹24,466
per person
✕ Non-refundable9 fare options
United Airlines
UA-4395
11:25
07/14/2026
STL
St Louis Lambert International Airport
6h 31m
1 Stop
⏱ ORD · 3h 42mORD Airport
17:56
07/14/2026
DEC
Decatur Airport
₹24,466
per person
✕ Non-refundable9 fare options
United Airlines
UA-4517
10:20
07/14/2026
STL
St Louis Lambert International Airport
7h 36m
1 Stop
⏱ ORD · 4h 53mORD Airport
17:56
07/14/2026
DEC
Decatur Airport
₹29,027
per person
✕ Non-refundable5 fare options
United Airlines
UA-4395
11:25
07/14/2026
STL
St Louis Lambert International Airport
21h 32m
1 Stop
⏱ ORD · 18h 42mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹29,027
per person
✕ Non-refundable5 fare options
United Airlines
UA-4517
10:20
07/14/2026
STL
St Louis Lambert International Airport
22h 37m
1 Stop
⏱ ORD · 19h 53mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹29,027
per person
✕ Non-refundable5 fare options
United Airlines
UA-4183
08:00
07/14/2026
STL
St Louis Lambert International Airport
24h 57m
1 Stop
⏱ ORD · 22h 10mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹31,724
per person
✕ Non-refundable🔥 Last 3 seats5 fare options
United Airlines
UA-4183
08:00
07/14/2026
STL
St Louis Lambert International Airport
9h 56m
1 Stop
⏱ ORD · 7h 10mORD Airport
17:56
07/14/2026
DEC
Decatur Airport
₹32,124
per person
✕ Non-refundable🔥 Last 3 seats
United Airlines
UA-4452
15:22
07/14/2026
STL
St Louis Lambert International Airport
17h 35m
1 Stop
⏱ ORD · 14h 45mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹41,217
per person
✕ Non-refundable🔥 Last 2 seats5 fare options
United Airlines
UA-4165
19:05
07/14/2026
STL
St Louis Lambert International Airport
22h 51m
1 Stop
⏱ ORD · 20h 6mORD Airport
17:56
07/15/2026
+1
DEC
Decatur Airport
₹41,217
per person
✕ Non-refundable🔥 Last 1 seats5 fare options
United Airlines
UA-4452
15:22
07/14/2026
STL
St Louis Lambert International Airport
26h 34m
1 Stop
⏱ ORD · 23h 45mORD Airport
17:56
07/15/2026
+1
DEC
Decatur Airport
₹41,217
per person
✕ Non-refundable🔥 Last 2 seats5 fare options
United Airlines
UA-4165
19:05
07/14/2026
STL
St Louis Lambert International Airport
13h 52m
1 Stop
⏱ ORD · 11h 6mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹41,869
per person
✕ Non-refundable🔥 Last 1 seats
Delta Air Lines
DL-1393
18:58
07/14/2026
STL
St Louis Lambert International Airport
13h 59m
2 Stops
⏱ ATL · 0h 56mATL Airport⏱ ORD · 7h 52mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
Delta Air Lines
DL-3185
17:36
07/14/2026
STL
St Louis Lambert International Airport
15h 21m
2 Stops
⏱ MSP · 1h 0mMSP Airport⏱ ORD · 9h 53mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
Delta Air Lines
DL-2700
15:58
07/14/2026
STL
St Louis Lambert International Airport
16h 59m
2 Stops
⏱ ATL · 2h 32mATL Airport⏱ MDW · 9h 30mMDW Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
Delta Air Lines
DL-2700
15:58
07/14/2026
STL
St Louis Lambert International Airport
16h 59m
2 Stops
⏱ ATL · 3h 57mATL Airport⏱ ORD · 7h 52mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
Delta Air Lines
DL-4167
15:57
07/14/2026
STL
St Louis Lambert International Airport
17h 0m
2 Stops
⏱ MSP · 2h 38mMSP Airport⏱ ORD · 9h 53mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
Delta Air Lines
DL-1371
13:54
07/14/2026
STL
St Louis Lambert International Airport
19h 3m
2 Stops
⏱ DTW · 1h 28mDTW Airport⏱ ORD · 13h 16mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
Delta Air Lines
DL-1371
13:54
07/14/2026
STL
St Louis Lambert International Airport
19h 3m
2 Stops
⏱ DTW · 1h 37mDTW Airport⏱ MDW · 13h 20mMDW Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
Delta Air Lines
DL-1371
13:54
07/14/2026
STL
St Louis Lambert International Airport
19h 3m
2 Stops
⏱ DTW · 3h 30mDTW Airport⏱ ORD · 11h 14mORD Airport
08:57
07/15/2026
+1
DEC
Decatur Airport
₹50,346
per person
✕ Non-refundable
😕 No flights match your filters.
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
Decatur (DEC)
📍 Decatur Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 39.834598541259766
📐 Longitude: -88.8656997680664

✈ Distance: St. Louis,USA to Decatur,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.

St. Louis to Decatur — what to expect when booking

The STL–DEC 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 St. Louis,USA and Decatur,USA is approximately 177.02 km.

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More flights from St. Louis (STL)
54 routes
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St. Louis → Cleveland
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St. Louis → Columbus
STL → CMH
St. Louis → Dallas
STL → DAL
St. Louis → Denver
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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
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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 → IAD
More flights from Decatur (DEC)
2 routes
Decatur → Chicago
DEC → ORD
Decatur → St. Louis
DEC → STL
❓ Frequently asked questions — St. Louis to Decatur 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 St. Louis,USA (STL) and Decatur,USA (DEC) 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.