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Amazing DEN to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $74 round trip and $32 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for DEN to SEA

Carrier Flight Depart DEN Arrive SEA Wed
11/25
Thu
11/26
Fri
11/27
Sat
11/28
Sun
11/29
Mon
11/30
Tue
12/1
Stops
DL 724 06:45 am 08:52 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 1171 07:00 am 09:05 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
UA 404 08:00 am 10:00 am Check fare Check fare - Check fare Check fare Check fare - 0 stop(s)
UA 690 11:26 am 01:27 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 623 12:20 pm 02:25 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
UA 1823 01:55 pm 03:55 pm Check fare - Check fare Check fare Check fare Check fare - 0 stop(s)
DL 749 02:45 pm 04:37 pm Check fare - Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 1177 06:10 pm 08:05 pm Check fare Check fare Check fare Check fare Check fare Check fare - 0 stop(s)
DL 2038 06:30 pm 08:33 pm Check fare - - Check fare Check fare Check fare Check fare 0 stop(s)
UA 2223 07:40 pm 09:40 pm Check fare - Check fare Check fare Check fare Check fare Check fare 0 stop(s)
F9 143 06:00 am 08:11 am - Check fare - - Check fare Check fare - 0 stop(s)
DL 1016 12:45 pm 02:41 pm - Check fare - - - - - 0 stop(s)
F9 145 04:55 pm 07:00 pm - - Check fare - Check fare Check fare - 0 stop(s)
UA 1557 09:05 pm 11:05 pm - - - - Check fare - - 0 stop(s)
UA 1077 08:00 am 10:00 am - - - - - - Check fare 0 stop(s)
UA 509 01:50 pm 03:51 pm - - - - - - Check fare 0 stop(s)
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FAQs about flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)

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

Alaska Airlines and United Airlines are some of the airlines that provide direct flights from Denver, CO (DEN-Denver Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). If you're keen to get to where you're headed without swapping planes, these are your best options.

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 Seattle, WA (SEA-Seattle - Tacoma Intl.), please visit our Customer Service Portal.

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

Flights between Denver and Seattle take about 4 hours and 7 minutes in total. Make the most of that time in the air by reading, napping, watching a film or doing all three.

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

With a flight distance of 1,429 mi between Denver and Seattle, you're going to be up in the air for a decent stretch of time. It's a great chance to watch a movie or two, catch up on your emails or just sit back with a few podcasts.

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

With good range of airlines operating nonstop flights from Denver, CO (DEN-Denver Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you shouldn't have a problem finding that perfect fare. Below are some of the most popular carriers:

  • Alaska Airlines - (AS) with 107 flights every month
  • United Airlines - (UA) with 157 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.

Denver Intl. to Seattle - Tacoma Intl. Flight FAQ

Traveling FromDenver Intl.
Traveling ToSeattle - Tacoma Intl.
Shortest Flight Time2 hours 52 mins
Earliest Departure Time6:45AM MST
Latest Departure Time7:50PM MST
Lowest Flight Price$74

Denver to Seattle Carriers and Route Information

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


Distance:
1,028.00 miles


Airlines & Aircraft Used on DEN to SEA Flight Routes


Airline Carrier
Aircraft
United Airlines
Aerospatiale/Alenia ATR 42-300 / 320
*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.