€420 Cheap flights to Colorado

The majority of momondo users who fly to Colorado tend to spend time in Denver, which is visited 93% more often than other cities. When flying to Denver, the most popular airport to fly into is Denver Airport.

Temperatures in Colorado can vary between -1 °C and 23 °C based on the time of year. Typically, the coldest month in Colorado will be January, and the warmest month will be July. It is also worth noting that those looking to avoid rain and/or snow should consider travelling to Colorado in January, January, and December, as that is when precipitation is least likely.

Aer Lingus is the most popular airline offering flights to Colorado, with 48% of our users opting to fly with them when travelling to Colorado. Other popular options include American Airlines and Icelandair. There are a total of 6 different airlines flying to Colorado.

The cost to fly to Colorado varies based on a variety of factors, but you can expect to find prices as low as €649 or as high as €677. Based on recent airfare data, we’ve found that a ticket to Colorado for €649 or less is a good deal, whereas €675 is the average cost.

The best day to take a flight to Colorado is on Wednesday, followed by Sunday. Wednesday and Sunday tend to have the lowest flight prices to Colorado. If your travel dates are flexible, then try to avoid booking on a Saturday, which is known for being the most expensive day of the week to fly to Colorado.

Prices for flights to Colorado are refreshed on a daily basis.

As of September 2026, there are 7 operators available to choose from for flights to Colorado.

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Colorado.

The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.