Cheap flights from San Diego to Denver from £72
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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 San Diego to Denver in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 29.06 | Tue 30.06 | Wed 01.07 | Thu 02.07 | Fri 03.07 | Sat 04.07 | Sun 05.07 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | --- | --- | 3 | --- | |
| 1 | 3 | 3 | 3 | 3 | 3 | --- | |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| --- | 1 | --- | --- | --- | 2 | --- | |
| Weekly flights: 36 total | Daily flights: 5.14 average | Most flights: Saturday 3 flights |
| Airline | Mon 06.07 | Tue 07.07 | Wed 08.07 | Thu 09.07 | Fri 10.07 | Sat 11.07 | Sun 12.07 |
|---|---|---|---|---|---|---|---|
| --- | 5 | 6 | 6 | 6 | 5 | 2 | |
| --- | --- | 3 | 3 | 3 | 3 | 3 | |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 59 total | Daily flights: 8.43 average | Most flights: Wednesday 6 flights |
| Airline | Mon 13.07 | Tue 14.07 | Wed 15.07 | Thu 16.07 | Fri 17.07 | Sat 18.07 | Sun 19.07 |
|---|---|---|---|---|---|---|---|
| 4 | 5 | 6 | 4 | 2 | 4 | 3 | |
| 3 | 3 | 3 | 3 | 3 | 3 | 2 | |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 62 total | Daily flights: 8.86 average | Most flights: Wednesday 6 flights |
| Airline | Mon 20.07 | Tue 21.07 | Wed 22.07 | Thu 23.07 | Fri 24.07 | Sat 25.07 | Sun 26.07 |
|---|---|---|---|---|---|---|---|
| 6 | 5 | 6 | 8 | 6 | 7 | 5 | |
| 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 78 total | Daily flights: 11.14 average | Most flights: Thursday 8 flights |
Check-in for a flight from San Diego to Denver
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| United Airlines | UAL | UA | No |
| Alaska Airlines | ASA | AS | No |
| Volaris | VOI | Y4 | No |
| VivaAerobus | VIV | VB | 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
Avoid the Highlands and the Cap Hill when riding a bike in Denver
Despite the location near mountains, Denver is pretty flat to ride a bike. The only two areas that may give bikers problems are the Highlands and the Cap Hill, with their steep slopes and hills. But generally, you can ride a bike around the city without worrying about a 30-degree incline.
Rent a bike in Denver and ride around Sloan Lake
Rent a bike with a bike-share program, B Cycle, in Denver. A perfect place to start your ride is Sloan Lake with its big surrounding area.
When walking in Denver keep your ice to the 7-meters-high dairy jug
When you see the 7-meters-high dairy jug in Denver, just know it is Little Man Ice Cream cafe. They sell cones of handcrafted ice cream, including vegan options. A classic Chunky Chocolate cone is a must.
Frequently asked questions
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