United States and Canada · United States
Cheap flights to Denver
The Mile High City, with Red Rocks Amphitheatre and the Rocky Mountains on its doorstep.
- Best weather
- May to Jun, Sep to Oct
- Warmest
- Jul, 33°C
- Airport
- DEN

Best time to visit Denver
The best time to visit Denver for the weather is from May to June and from September to October, when daytime highs average 20 to 30°C (68 to 86°F) and it's mostly dry.
There's no real wet season: rain is spread through the year, with the most in May (about 67 mm of rain) and the least in January.
The warmest month is July, with highs around 33°C (91°F); the coolest is December, at around 9°C (47°F) by day and -6°C (21°F) at night.
Denver weather by month
Average daytime highs, overnight lows and rain for each month.
| Month | High | Low | Rain | What it's like |
|---|---|---|---|---|
| January | 9°C 49°F | -6°C 21°F | 11 mm of rain | Cold and dry |
| February | 9°C 49°F | -6°C 22°F | 15 mm of rain | Cold and dry |
| March | 14°C 58°F | -1°C 30°F | 29 mm of rain | Cool and dry |
| April | 18°C 64°F | 2°C 36°F | 50 mm of rain | Mild and dry |
| May Best | 23°C 73°F | 8°C 46°F | 67 mm of rain | Mild and dry |
| June Best | 30°C 85°F | 13°C 56°F | 44 mm of rain | Warm and dry |
| July | 33°C 91°F | 17°C 62°F | 48 mm of rain | Hot and dry |
| August | 32°C 90°F | 16°C 60°F | 46 mm of rain | Hot and dry |
| September Best | 28°C 82°F | 10°C 51°F | 30 mm of rain | Warm and dry |
| October Best | 20°C 68°F | 3°C 38°F | 29 mm of rain | Mild and dry |
| November | 13°C 56°F | -2°C 28°F | 20 mm of rain | Cool and dry |
| December | 9°C 47°F | -6°C 21°F | 12 mm of rain | Cold and dry |
Long-term averages from Denver Water Department, 1991–2020. The weather on your dates will vary.
Flying to Denver
Farepop finds fares to Denver International Airport (DEN). These are the closest airports Farepop watches in each region, as the crow flies; with stops, the trip is longer.
| From | Closest airports |
|---|---|
| Australia | Brisbane 12,900 km · about 16.5 hours non-stop Sydney 13,400 km · about 17.5 hours non-stop |
| New Zealand | Auckland 11,800 km · about 15.5 hours non-stop Wellington 12,100 km · about 15.5 hours non-stop |
| United States | Dallas 640 mi · about 2 hours non-stop Los Angeles 860 mi · about 2 hours non-stop |
| Canada | Calgary 1,400 km · about 2.5 hours non-stop Vancouver 1,800 km · about 2.5 hours non-stop |
| United Kingdom | Belfast 4,300 mi · about 9 hours non-stop Glasgow 4,400 mi · about 9.5 hours non-stop |
| Europe | Cork 7,000 km · about 9.5 hours non-stop Dublin 7,000 km · about 9.5 hours non-stop |
How Farepop finds cheap flights to Denver

Compared with the usual price
Every fare is compared with what the same route usually costs for the same trip length and dates. Around busy holidays we use quieter neighbouring months, so a peak price never passes for a saving.

At least 25% below
A deal is at least 25% below the usual price for those dates, and a good fare at least 20%. Full-service airlines selling at budget prices, and travel agents undercutting the airline, are labelled as such.

Checked twice, then again
Fares are checked again on their exact dates before you hear about them, and regularly after. Ones that no longer qualify are withdrawn.

You book direct
Farepop doesn't sell tickets. Tap a deal and book with the airline or travel site; always check the final price, baggage and conditions before you pay.
The full rules are in our savings methodology.
Denver: questions
When is the best time to visit Denver?
For the weather, from May to June and from September to October, when daytime highs average around 25°C. These are long-term averages from Denver Water Department, 1991–2020.
Does it rain a lot in Denver?
Denver has no distinct wet season. May is usually the wettest month, with about 67 mm of rain.
Which airport do you fly into for Denver?
Farepop finds fares to Denver International Airport (DEN).
How can I find cheap flights to Denver?
Be flexible with your dates and let the fares come to you. Farepop watches flights from your home airports and alerts you when a trip to Denver costs at least 25% less than it usually does for those dates, so you can book before the fare goes.