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Cheap Flights from St Louis to Denver - STL to DEN (reverse)

Popular Flights from St Louis to Denver

  • Airfare from St Louis to Denver on Frontier from $155 round trip
  • Airfare from St Louis to Denver on United from $218 round trip
  • Airfare from St Louis to Denver on American from $240 round trip
  • Airfare from St Louis to Denver on Delta from $240 round trip
  • Airfare from St Louis to Denver on AirTran from $261 round trip

Did You Know?

  • 115,917 seats are available per day to fly out of St Louis, MO connecting to Denver, CO
  • The largest aircraft operated by Vietnam flying between St Louis, MO and Denver, CO is a M90 with 150 seats.
  • The shortest flight between St Louis, MO and Denver, CO on Aeromexico is 1,679 miles.
  • Alitalia has 1 two stops or more flight between St Louis, MO and Denver, CO.
  • The smallest aircraft operated by Lufthansa flying between St Louis, MO and Denver, CO is a ERJ with 50 seats.
  • 10 airlines operate between St Louis, MO and Denver, CO
  • Chicago, IL is the most popular connection for one stop flights between St Louis, MO and Denver, CO.
  • 282 flights per week fly out of St Louis, MO connecting to Denver, CO

Advance Purchase Prices from St Louis to Denver

  • Carrier
    0 Days
    1 Day
    3 Days
    7 Days
    10 Days
    14 Days
    21 Days
  • AirTran
    $479
    $479
    $479
    $435
    $221
    $307
    $201
  • Alaska
    $2095
    $2095
    $2095
    $2095
    $2095
    $2095
    $2095
  • American
    $292
    $292
    $292
    $435
    $221
    $287
    $201
  • Continental
    $478
    $478
    $478
    $414
    $200
    $266
    $180
  • Delta
    $600
    $600
    $600
    $426
    $212
    $278
    $192
  • Frontier
    $458
    $458
    $458
    $414
    $200
    $266
    $180
  • US Airways
    $354
    $354
    $354
    $286
    $286
    $246
    $246
  • United
    $478
    $478
    $478
    $414
    $200
    $266
    $180

Daily Non-stop Flight Schedules from Lambert International to Denver International

  • Airline
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Earliest Flight
    Latest Flight
  • Frontier
    2
    1
    1
    1
    2
    1
    2
    7:05 AM
    6:54 PM
  • Southwest
    4
    4
    4
    4
    4
    2
    4
    6:45 AM
    6:15 PM
  • United
    4
    3
    3
    4
    4
    3
    4
    6:06 AM
    7:31 PM

Cheap Domestic Flights from St Louis - STL

Flights
Airline
Lowest Price
American, US Airways, Frontier, AirTran, Delta, Alaska, United
$268
United, Delta, US Airways, American, Frontier, AirTran
$239
United, Delta, American, US Airways
$334
Delta, United, AirTran, Frontier, American, US Airways
$263
Delta, Choice One, American, US Airways, United, Alaska
$166
AirTran, Frontier, American, US Airways, United, Alaska, Delta
$304
US Airways, American, AirTran, Frontier, Delta, United, Alaska
$238
AirTran, American, US Airways, United, Frontier
$196
Alaska, Delta, United, American, Frontier, AirTran, US Airways
$160
United, Delta, American, AirTran, US Airways
$218
Frontier, American, Delta, United, Alaska, US Airways, AirTran
$250
US Airways, Delta, United, American, Frontier, AirTran
$291
United, Delta, American, Frontier
$218
AirTran, Frontier, American, US Airways, United, Delta, Alaska
$263
Delta, US Airways, United, American, AirTran
$210
Alaska, United, Delta, US Airways, American
$769
Cheap Flights from St Louis to Denver, from $155 Round trip from STL to DEN