Question 1

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) cost?

Accepted Answer

You can find cheap one-way flights from $44 and cheap return flights from $88 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) with Expedia. One-way flights typically cost between $69 and $912, and return flights often range between $179 and $1256. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

Question 2

What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

January is the cheapest month to fly from Seattle (SEA) to Denver (DEN), with average round-trip fares around $200. This is about 23% lower than the average price throughout the year, as travel demand typically decreases after the holiday season. Other economical months to consider are September and October.

*Averages based on flights available on Expedia in the last year.

Question 3

Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

There are 4 airlines offering direct flights from SEA to DEN:

United operates around 48 direct flights from SEA to DEN every week
Delta operates around 21 direct flights from SEA to DEN every week
Frontier Airlines operates around 9 direct flights from SEA to DEN every week
Hawaiian Airlines operates around 22 direct flights from SEA to DEN every week

Question 4

How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

Question 5

What is the best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

The best airline to fly with from Seattle, WA (SEA) to Denver, CO (DEN) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. WN offers the most daily flights from Seattle to Denver, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

Question 6

What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

For flights from Seattle to Denver, January and October are the best times to travel. January offers an average price of around $200 for a return flight, making it very budget-friendly. October is also a great option, providing a balance of good prices and pleasant weather, perfect for exploring Denver.

*Prices based on flights available on Expedia in the last year.

Question 7

How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

You can find approximately 14 nonstop flights per day from Seattle - Tacoma Intl. (SEA) to Denver Intl. (DEN). For more options, look at flights that include layovers.

Question 8

What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

The earliest flight from Seattle-Tacoma International Airport (SEA) to Denver International Airport (DEN) typically departs at around 12:05 AM, operated by American Airlines. This service is seasonal and runs in February and March, making it a great option for early travelers heading to Colorado. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

Question 9

What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

The most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) are in the morning, from 6am to 9am. About 24% of passengers prefer this time window. Many major carriers, including Alaska Airlines, Delta, and Southwest Airlines, offer flights during this window. This timing works well because it lets you arrive in Denver early to enjoy the day ahead.

Question 10

How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

A nonstop flight from SEA to DEN typically takes around 2 hours 50 minutes, covering approximately 1,022 miles. Connecting flights on this route usually add 5 hours 10 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Question 11

Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

Select the "Business class" and "First class" filters when looking for SEA to DEN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

Question 12

How much is a business class flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

A direct, return business class ticket from Seattle (SEA) to Denver (DEN) typically costs between $882 - $1,540. A non-stop, one-way business class flight is usually around $403 - $621. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) if you opt for a connecting flight.

*Prices based on flights available on Expedia in the last year.

Question 13

How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) flight with Expedia?

Accepted Answer

It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Question 14

What airports do you fly into for Denver from Seattle - Tacoma Intl. (SEA)?

Accepted Answer

If you're planning to travel to Denver from Seattle - Tacoma Intl. (SEA), you can fly into Denver Intl. (DEN) Some flights may connect through major hubs like Sacramento Intl. (SMF), Oakland Intl. (OAK), Norman Y. Mineta San Jose Intl. (SJC) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Question 15

Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) at the last minute?

Accepted Answer

Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Question 16

Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) flight and hotel package?

Accepted Answer

Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) Denver Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

Question 17

Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.)?

Accepted Answer

If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Origin airport	Seattle - Tacoma Intl.
Destination airport	Denver Intl.
Airlines serving	Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price	$88
Distance	1022 mi
Average flight time	3 hours 42 mins

Popular airlines from Seattle-Tacoma International Airport (SEA) to Denver Intl. Airport (DEN)

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$44 Cheap Flights from Seattle (SEA) to Denver (DEN)