Cheap flights from Buffalo to Denver from $76

The cheapest month to fly to Denver from Buffalo is in October. Flight prices, which tend to average around $268, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in October, then you should wait until August to fly from Buffalo, when ticket prices are also cheap, with an average price of $270.

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $282. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $464.

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $220. Flights in the evening are often more expensive with an average ticket price of $466.

Fly from Buffalo to Denver Intl for the best Buffalo - Denver Intl flight prices

You are more likely to see cheaper flights to Denver from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $346 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Buffalo for as low as $273 on momondo.

There are 4 cabin classes available to choose from on Buffalo to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 35% on your flight if you consider stops on a Buffalo to Denver flight.

As of February 2026, prices for Buffalo to Denver flights are approximately 0% more expensive when compared to flights at the same time last year.

Frontier is the most popular carrier operating from Buffalo to Denver Intl

United Airlines, Southwest and American Airlines are the top three most popular airlines that fly to Denver from Buffalo according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 5 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 73% of momondo users choosing 1-stop flights on this route connected there.

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $265.

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 5h 25m.

Chicago (MDW) has the shortest average layover time for this route: 0h 50m.

1 flights are operational daily from Buffalo to Denver as of February 2026. The most popular departure time for this route is 8:00AM, with 83% of flights per day taking off at noon.

As of February 2026, there are 10 flights per week flying from Buffalo to Denver. The most common day of the week flights depart is Thu, with 20% of flights taking off on this day.