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Amazing SEA to DEN Flight Deals

The cheapest flights to Denver Intl. found within the past 7 days were $67 round trip and $34 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for SEA to DEN

Carrier Flight Depart SEA Arrive DEN Thu
10/29
Fri
10/30
Sat
10/31
Sun
11/1
Mon
11/2
Tue
11/3
Wed
11/4
Stops
UA 2436 05:15 am 09:01 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 682 07:45 am 11:18 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
F9 144 08:50 am 12:35 pm Check fare Check fare - Check fare Check fare - - 0 stop(s)
UA 2488 09:12 am 12:55 pm Check fare Check fare Check fare - - - - 0 stop(s)
DL 749 09:47 am 01:25 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 1474 12:55 pm 04:25 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
UA 2493 01:00 pm 04:45 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
DL 745 01:25 pm 05:08 pm Check fare Check fare - Check fare Check fare - - 0 stop(s)
AS 668 02:05 pm 05:35 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
F9 142 07:13 pm 10:57 pm Check fare Check fare - Check fare Check fare - - 0 stop(s)
DL 1189 07:48 pm 11:25 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 1151 07:55 pm 11:26 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
UA 403 09:00 am 12:43 pm - - - Check fare Check fare - Check fare 0 stop(s)
UA 773 02:30 pm 06:13 pm - - - Check fare Check fare Check fare Check fare 0 stop(s)
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FAQs about flights from Seattle - Tacoma Intl. Airport (SEA) to Denver Intl. Airport (DEN)

Are there direct flights from Sea-Tac Airport to Denver Airport?

Multiple airlines offer passengers flights straight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.). These include United Airlines and Southwest Airlines — check them out if you need to arrive at your destination as fast as possible.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Denver, CO (DEN-Denver Intl.), please visit our Customer Service Portal.

How long is the flight from Sea-Tac Airport to Denver Airport?

Step off the plane feeling rested and relaxed by having a sleep and a snack during your flight to Denver, CO (DEN-Denver Intl.). With an average travel time of 3 hours and 54 minutes from Seattle, WA (SEA-Seattle - Tacoma Intl.), you'll have enough time to enjoy both.

What is the flight distance from Sea-Tac Airport to Denver Airport?

There's a flight distance of 1,429 mi separating Seattle, WA (SEA-Seattle - Tacoma Intl.) and Denver, CO (DEN-Denver Intl.). This is classified as a medium-haul flight. You'll have plenty of time to enjoy the in-flight entertainment and fit in some shut-eye if you're feeling tired.

What airlines fly from Sea-Tac Airport to Denver Airport?

If you're traveling from Seattle to Denver, there are plenty of airlines that will take you there. Choose a seat with these well-known airlines with direct flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Denver, CO (DEN-Denver Intl.):

  • Alaska Airlines - (AS) with 102 flights every month
  • United Airlines - (UA) with 156 flights every month
  • Southwest Airlines - (WN) with 98 flights every month
  • Delta Air Lines - (DL) with 153 flights every month
What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

Seattle - Tacoma Intl. to Denver Intl. Flight FAQ

Traveling FromSeattle - Tacoma Intl.
Traveling ToDenver Intl.
Shortest Flight Time4 hours 30 mins
Earliest Departure Time5:15AM MST
Latest Departure Time7:55PM MST
Lowest Flight Price$67

Seattle to Denver Carriers and Route Information

Flight path for flights from Seattle-Tacoma International Airport to Denver International Airport


Distance:
1,028.00 miles


Airlines & Aircraft Used on SEA to DEN Flight Routes


Airline Carrier
Aircraft
Alaska Airlines
Canadair Regional Jet 700
Jet Airways (India)
Boeing 737-900 pax
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.