On this page, you can find and purchase flight tickets for the Seattle — Denver route. Covering a distance of 1644 km, this is a popular domestic route within the USA, offering passengers a choice of approximately 122 flights per week.
Flights are served by airlines such as United Airlines, Delta, and Alaska Airlines. Ticket prices are dynamic, so to find the best deal, use the low-price calendar and price trend chart to help you select the optimal departure date.
The table shows direct flights Seattle → Denver on the selected date. The flight takes approximately 2 h 43 min. Regular flights are operated by Alaska Airlines, Hawaiian Airlines, United Airlines and Delta. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at Denver International Airport and Centennial Airport.
For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.
Below is a calendar of the lowest flight ticket prices for Seattle — Denver by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 167 in ,, and the most expensive are around AED 575 in J. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
Seattle → Denver, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | AED 405 | low | May | AED 626 | high | Sep | AED 497 | medium |
| Feb | AED 424 | low | Jun | AED 663 | high | Oct | AED 479 | low |
| Mar | AED 516 | medium | Jul | AED 682 | high | Nov | AED 461 | low |
| Apr | AED 534 | medium | Aug | AED 590 | medium | Dec | AED 645 | high |
Some values are estimated based on seasonality.
The warmest month in Denver is July, when temperatures reach up to 30.5°C. The coldest period is typically February, with lows reaching -9°C, while peak precipitation occurs in May—something to keep in mind when planning outdoor activities.
From a budget perspective, the most cost-effective months for flying are August and September, with tickets starting AED 168. The highest fares are usually seen in January and March, when the minimum flight cost can increase AED 577 and AED 568, respectively.
The optimal time for your trip would be August or September, as these months offer the best balance between pleasant weather and affordable prices. We recommend avoiding bookings for mid-winter if your priority is finding the lowest possible ticket price.
Major airlines such as United Airlines, Alaska Airlines, and Delta operate on this route, handling the bulk of the passenger traffic. Most flights are direct, which helps minimize travel time between cities. You can find detailed information on departure days and available flight options in the schedule below.
Flights Seattle — Denver depart from Seattle-Tacoma International Airport and Paine Field and arrive at Denver International Airport and Centennial Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
A direct flight takes an average of 2 hours and 30 minutes, covering a distance of 1644 km between the cities.
Flights are operated by United Airlines, Alaska Airlines, Delta, Southwest, and the budget carrier Frontier. In total, there are approximately 9 carriers on this route.
Yes, this is a popular route with about 122 flights per week, the majority of which are direct.
Flights from Seattle land at Denver International Airport (DEN). You can find information on how to get from the airport to the city in the corresponding section.
Prices change constantly based on demand. You can always check the current minimum for specific dates in the low-price calendar on this page.
Where travelers fly most — pick a route and check prices
