Cheap Flight Tickets from Denver (DEN) to Seattle (SEA), Starting at $212

Good to Know: Cheapest and Fastest DEN - SEA Flights

Useful information for finding best airline tickets from Denver International to Seattle Tacoma International on your next trip.

Cheapest Round Trip Flight

$387

DL Delta Airlines • nonstop • 5h 2m

Jul 22 – Jul 27

The cheapest round trip flight from Denver to Seattle (DEN-SEA-DEN) is currently $387

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Cheapest Direct Flight

$387

DL Delta Airlines • nonstop • 5h 2m

Jul 22

The cheapest nonstop flight from Denver to Seattle (DEN-SEA) is currently $387

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Fastest Flight

4h 10m

The fastest nonstop flight from Denver to Seattle (DEN-SEA) takes 4h 10m

Top Airlines Flying from Denver to Seattle

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

Sun Country Airlines (SY)

Sun Country Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

United Airlines, UA

United Airlines

Hawaiian Airlines-HA

Hawaiian Airlines

Latest Flight Deals from Denver (DEN) to Seattle (SEA)

Compare and book low fare round-trip air tickets from Denver to Seattle. Ideal for travelers with confirmed return itineraries.

Jul 22 - Jul 27, Economy
DL
Denver → Seattle
5h 2m
1:03 PM - 3:05 PM • nonstop
DL
Denver → Seattle
4h 12m
8:10 AM - 12:02 PM • nonstop
$387
Delta Airlines
Jul 22 - Jul 27, Economy
DL
Denver → Seattle
5h 2m
6:39 PM - 8:41 PM • nonstop
DL
Denver → Seattle
11h 53m
10:05 AM - 6:18 PM • 1 stop
$421
Delta Airlines
Jul 22 - Jul 27, Economy
DL
Denver → Seattle
11h 45m
3:55 PM - 10:00 PM • 1 stop
DL
Denver → Seattle
4h 12m
8:10 AM - 12:02 PM • nonstop
$772
Delta Airlines
Jul 22 - Jul 27, Economy
DL
Denver → Seattle
9h 19m
7:31 AM - 12:30 PM • 1 stop
DL
Denver → Seattle
4h 12m
8:10 AM - 12:02 PM • nonstop
$772
Delta Airlines
Jul 22 - Jul 27, Economy
DL
Denver → Seattle
10h 26m
6:32 PM - 11:58 PM • 1 stop
DL
Denver → Seattle
7h 3m
9:30 AM - 2:53 PM • 1 stop
$805
Delta Airlines
Jul 22 - Jul 27, Economy
WN
Denver → Seattle
8h 50m
2:50 PM - 7:20 PM • 1 stop
WN
Denver → Seattle
4h 10m
12:20 PM - 4:10 PM • nonstop
$3527
Southwest Airlines

Fly from Denver to Seattle with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Denver to Seattle? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Denver to Seattle Flights

What are the airports in Denver?
DEN
What’s the most popular airline flying from DEN to SEA?
The most popular airline flying from Denver to Seattle are
Can I fly from DEN to SEA non-stop?
Yes, you can fly DEN to SEA non-stop on
Which airlines fly nonstop between Denver and Seattle?
The non-stop flights between Denver and Seattle are .
What’s the earliest departure time from DEN to SEA Airport?
The earliest flight leaves DEN at 5:40 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Denver to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DEN to SEA?
Read the fare rules of the Denver to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Denver and Seattle?
operate flights between Denver and Seattle
How long does a flight from Denver to Seattle take?
It takes approximately 3 hour to fly non-stop from DEN to SEA, which is 1024.03 miles by air.
Which airlines provide the cheapest flights from Denver (DEN) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from DEN were found on DL : USD 387
Do I need a passport to fly between DEN and SEA?
No
What’s the latest departure time from DEN to SEA ?
The last flight leaves DEN at 10:29 pm

Essential Information for Booking Flights from Denver (DEN) - AI Insights

What's the cheapest airline from den to sea?
You can find budget-friendly flights from Denver to Seattle with Frontier Airlines. For a round-trip economy fare, consider booking at least 7 days in advance. Look for cheap airline tickets on fareleaders.com for the best deals.
What's the popular airline to fly from den to sea?
You can fly from Denver International Airport (DEN) to Seattle Tacoma International Airport (SEA) on Southwest Airlines. For a round-trip economy flight, consider booking in advance to secure low fares. You can find budget-friendly flights with airlines like Southwest Airlines for your trip.
What's the cheapest day of the week to fly from den to sea?
The cheapest day to fly from Denver (DEN) to Seattle (SEA) is Sunday. Flying on Sundays can result in low fares, making it a budget-friendly option for your round-trip journey.
What's the cheapest month to fly from den to sea?
The cheapest month to fly from Denver (DEN) to Seattle (SEA) is October. Flying during this time can help you save on airfare costs, making it a budget-friendly option for your round-trip journey.
Which airline/airlines fly from den to sea?
The airlines that fly from Denver International Airport (DEN) to Seattle Tacoma International Airport (SEA) include JetBlue Airways, Sun Country Airlines, Southwest Airlines, WestJet Airlines, American Airlines, United Airlines, Delta Airlines, Volaris Airline, Frontier Airlines, and Alaska Airlines. You can find budget-friendly flights on these airlines for your round-trip journey.
What are the cheapest flights from Denver International Airport to Seattle Tacoma International Airport?
You can find affordable flights on airlines like Frontier Airlines (F9), Southwest Airlines (WN), and JetBlue Airways (B6).
How far in advance can I book my airfare for a round trip economy flight?
It is recommended to book your airfare at least 7 days in advance for the best deals.
Can I find affordable flights on airlines like airport?
Yes, you can explore cheapflights options available for Milwaukee flights on websites like fareleaders.com.
Are there any cheapflights options available for Milwaukee flights?
Unfortunately, we do not offer direct flights to Milwaukee. However, you can search for airfares on web platforms like fareleaders.com.
Is it possible to book a weekend getaway via the website?
Yes, you can use our website to book a weekend getaway. Simply enter your travel dates and destinations.
What is the best way to search for airfares on web platforms?
The best way to search for airfares on web platforms like fareleaders.com is to use our advanced search feature, which allows you to filter by airline, destination, and travel dates.

Denver (DEN) to Seattle (SEA): Airport Information

Origin Airport Denver International , Denver, US
Destination Airport Seattle Tacoma International , Seattle, US
Distance 1024 miles

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