$108 Find Cheap United Airlines Flights from Seattle to Denver

When to Book Flights with United Airlines from Seattle to Denver

• How far in advance should I book tickets for a flight with United Airlines from Seattle to Denver?

  Generally, when trying to get a below average price for your ticket, try to book around 11 days before departure. For the cheapest possible price, our data suggests booking 42 days before departure.

• Is United Airlines the cheapest airline to fly with from Seattle to Denver?

  With an average price of $311 return, United Airlines is not the cheapest airline to fly from Seattle to Denver with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $145 on average.

• What is the cheapest United Airlines flight from Seattle to Denver?

  In the last 3 days, the lowest price for a flight with United Airlines from Seattle to Denver was $118 for a return flight and $88 for a one-way flight.

• Does United Airlines fly direct to Denver from Seattle?

  Yes, United Airlines does offer direct flights for the route, with around 9 flights per week.

• What’s the cheapest day of the week to fly from Seattle to Denver with United Airlines?

  On average, the cheapest day of the week to fly from Seattle to Denver with United Airlines is Monday, when prices are around $78. The most expensive day is generally Saturday, where the average price is around $123.

• What’s the cheapest month to fly from Seattle to Denver with United Airlines?

  The cheapest month for United Airlines flights to Denver from Seattle is generally April, where plane tickets cost $148 on average. If possible, try to avoid the most expensive months of June and December, where tickets cost $188 and $213 respectively.