Direct flights from St Louis to Denver

Did you mean Flights from Denver to St Louis?

St Louis

United States

STL

Lambert St Louis International Airport

Denver

United States

DEN

Denver International Airport

Route: Nonstop service available
Distance: 768 miles
Marketing airlines: 5 airlines
Aircraft: 12 aircraft types
Dates: Nov 2, 2026 – Oct 17, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 12,500 points + $9.00 for STL → DEN, Economy, on 2026-11-13, booked with Virgin Australia. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-11-12 – 2026-12-11.

STL → DENEconomy
UA663
12,500 points+ $9.00
Departure
2026-11-13
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-12 02:54
STL → DENEconomy
UA1380
12,500 points+ $9.00
Departure
2026-11-13
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-11 14:24
STL → DENEconomy
UA1380
12,500 points+ $9.00
Departure
2026-11-13
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-12 02:54
STL → DENEconomy
UA663
12,500 points+ $9.00
Departure
2026-11-13
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-11 14:24
STL → DENEconomy
UA663
12,500 points+ $9.00
Departure
2026-11-14
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-11 10:27
STL → DENEconomy
UA1352
12,500 points+ $9.00
Departure
2026-11-14
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-11 10:27
STL → DENEconomy
UA1380
12,500 points+ $9.00
Departure
2026-11-14
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-11 10:27
STL → DENEconomy
UA1380
12,500 points+ $9.00
Departure
2026-11-19
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-10 12:53
STL → DENEconomy
UA1605
12,500 points+ $9.00
Departure
2026-12-08
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-10 15:27
STL → DENEconomy
UA2001
12,500 points+ $9.00
Departure
2026-12-08
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-10 15:27
STL → DENEconomy
UA1380
15,000 points+ $5.00
Departure
2026-11-13
Seats seen
1
Book with
United MileagePlus
Observed (UTC)
2026-11-11 14:25
STL → DENEconomy
UA663
15,000 points+ $5.00
Departure
2026-11-13
Seats seen
1
Book with
United MileagePlus
Observed (UTC)
2026-11-11 14:25

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Transfer partners in our directory: Wyndham Rewards, Chase Ultimate Rewards, Bilt Rewards, Marriott Bonvoy, Accor Live Limitless, IHG Rewards, Choice Privileges. Check current eligibility and terms before transferring.

St Louis to Denver route overview

Lambert St Louis International Airport (STL) serves St Louis; Denver International Airport (DEN) serves Denver.

The airports are 768 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from STL to DEN.

Marketing airlines listed in the current schedule, including codeshare sellers, are Air Canada (AC), Frontier Airlines (F9), United Airlines (UA), Southwest Airlines (WN) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Nov 2, 2026 – Oct 17, 2027.

Marketing airlines on the St Louis to Denver route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Air Canada (AC)Codeshare only
Volaris (Y4)Codeshare only

Airline alliance affiliations represented: Star Alliance

Aircraft flying from STL to DEN

Frequently asked questions

Which airports serve the St Louis to Denver route?

Lambert St Louis International Airport (STL) is the origin airport and Denver International Airport (DEN) is the destination airport.

How far is Denver from St Louis?

STL and DEN are approximately 768 miles apart by great-circle distance.

Are there direct flights from STL to DEN?

Yes. Roame's current schedule feed shows nonstop service from STL to DEN.

Which airlines market flights from STL to DEN?

Which aircraft fly from STL to DEN?

Aircraft listed in the current schedule include Airbus A319 (319), Airbus A320 (320), Airbus A321 (321), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8), 7S7, Embraer 175 (long wing) (E7W) and JET.