Cheap flights from St. Louis to Denver from £28
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How much do flights to Denver cost?
Getting from Denver's airport to the city center
Fastest options: RTD A Line train and taxi/ride-hailing. Best value: RTD A Line and regional bus services.
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
37 min | $10.50; one-way fare | every 15 min (traffic dependent) | downtown on a budget | |
50-70 min | $10.50; one-way fare | every 30–60 min (traffic dependent) | Boulder and suburban areas | |
30-50 min | $55 – $70; metered; varies by traffic and destination | on-demand 24/7 (traffic dependent) | door-to-door convenience | |
30-50 min | $40 – $70; surge pricing may apply | on-demand 24/7 (traffic dependent) | flexible pickup locations | |
30-50 min | $70 – $120; pre-booked; varies by provider | by reservation (traffic dependent) | groups and guaranteed pickup | |
30-50 min | $40 – $100; per day; varies by vehicle and provider | on-demand (traffic dependent) | exploring Colorado independently |
Notes:
- Prices in USD; table created in 2025 and subject to change.
- The RTD A Line operates from approximately 4:00 AM to 1:00 AM daily, with reduced frequency during late night hours.
- Ride-hailing pickup is located on Level 5, Island 5 of the Jeppesen Terminal.
- Taxi and ride-hailing costs can increase significantly during peak hours and adverse weather conditions.
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
Key info about flying to Denver
Weekly direct flights
Discover the top airlines offering direct flights from St. Louis to Denver in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 24.08 | Tue 25.08 | Wed 26.08 | Thu 27.08 | Fri 28.08 | Sat 29.08 | Sun 30.08 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 3 | 5 | 3 | 4 | 4 | |
| 1 | --- | --- | 1 | 1 | --- | 1 | |
| Weekly flights: 29 total | Daily flights: 4.14 average | Most flights: Thursday 5 flights |
| Airline | Mon 31.08 | Tue 01.09 | Wed 02.09 | Thu 03.09 | Fri 04.09 | Sat 05.09 | Sun 06.09 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 2 | 5 | 3 | 4 | 5 | |
| 1 | --- | --- | 1 | 1 | --- | 1 | |
| Weekly flights: 29 total | Daily flights: 4.14 average | Most flights: Thursday 5 flights |
| Airline | Mon 07.09 | Tue 08.09 | Wed 09.09 | Thu 10.09 | Fri 11.09 | Sat 12.09 | Sun 13.09 |
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | --- | --- | --- | --- | |
| 1 | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 7 total | Daily flights: 2.33 average | Most flights: Wednesday 3 flights |
Check-in for a flight from St. Louis to Denver
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| United Airlines | UAL | UA | No |
| American Airlines | AAL | AA | No |
Online check-in is not available for these airlines.
Weather in Denver
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 4°C | -6°C |
| February | 5°C | -6°C |
| March | 10°C | -1°C |
| April | 14°C | 1°C |
| May | 18°C | 6°C |
| June | 26°C | 13°C |
| July | 29°C | 16°C |
| August | 28°C | 15°C |
| September | 25°C | 12°C |
| October | 17°C | 4°C |
| November | 10°C | -1°C |
| December | 5°C | -5°C |
14 day forecast
Denver travel tips
Follow the steps of the Beatles in Denver
When going to a concert at the Red Rocks Park and Amphitheatre or just passing this great building by on the street try to imagine yourself in the 60s. This is where the Beatles gathered their crazy dedicated fans.
Eat some hand-made food at Denver Central Market
Denver Central Market on 2669 Larimer Street is mainly famous for its hand-made food. Sample a bowl of handmade pasta or an artisanal sandwich. A wood-fired pizza is also a nice option. And good shopping is guaranteed, of course.
Going picnicking in Denver or just shopping at Cooks Fresh Market, try their sandwiches
Located on 1600 Glenarm Plaza in Denver, Cooks Fresh Market is a great option for gourmets. After shopping or passing by on your way to a picnic, pay a visit to this deli to grab a sandwich or two.
Frequently asked questions
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