Cheap flights from Seattle to Denver (SEA - DEN)

Flight FAQs

From Seattle to Denver

Are flight prices decreasing from Seattle to Denver due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and Denver for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Denver Intl to control the spread of COVID-19?

Alaska Airlines, Southwest, and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Seattle/Tacoma Intl to Denver Intl include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to Denver Intl have flexible cancellations due to COVID-19?

Delta, Frontier, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Seattle to Denver for under $100 on Cheapflights?

Yes, there are multiple flights from Seattle to Denver for under $100. The cheapest flight booked recently is on Frontier for just $62, but on average you can expect to pay $82.

Are there nonstop flights from Seattle to Denver for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Denver under $100. A good price for a nonstop flight from Seattle to Denver is less than $83.

Are there last-minute flights available from Seattle to Denver for under $100?

There are currently 20+ open flights from Seattle to Denver within the next 7 days for less than $100.

What days are nonstop flights available from Seattle to Denver?

You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Friday, Saturday.

How many flights depart from Seattle to Denver on average per day?

Per day, 16 flights depart from Seattle/Tacoma Intl to Denver Intl on average.
Early Morning (Midnight to 6am) - 13% of flight departures
Morning (6am - Noon) - 31% of flight departures
Afternoon (Noon - 6pm) - 31% of flight departures
Evening (6pm - Midnight) - 25% of flight departures

Does it rain more in Seattle or Denver?

In Seattle, there will be greater rainfall in Seattle compared to Denver over the next 19 days.

Is Seattle weather warmer or cooler than Denver?

Temperatures around the 90 °F's can be experienced in July. The weather in Denver is hotter than in Seattle. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Seattle to Denver?

Airlines like Alaska Airlines, Delta, and Frontier fly from Seattle to Denver in about 2h 30m. The time it takes to get you to your destination is usually consistent. There are 1028 mi between Seattle and Denver. Generally, flights for this route are nonstop.

What are the cheapest airlines flying from Seattle to Denver round-trip?

Our cheapest airline available from Seattle to Denver is Frontier. Our recent data shows that you can find tickets from as low as $62 on this airline. Additional options worth looking into are Alaska Airlines and Delta, starting at $91 and $97 round-trip. These flights start at 60% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Seattle to Denver one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $29. However, be on the lookout for offers from Spirit Airlines and Alaska Airlines, as they are both options that can get you from Seattle to Denver for a low price.