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Cheap flights from Seattle to Denver

49 nonstop flights a week, 7 of them today. Operated by 4 airlines, about 2h 40m in the air, 1,020 mi (1,641 km). Tickets from $181, nonstop from $238.

Flights from Seattle to Denver

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Filters

Best fares from Seattle to Denver

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $181 15 November 2026, with a connection Cheapest nonstop $238 15 November 2026, Alaska Airlines Cheapest in the next 7 days $181 15 November, Sun Cheapest month November 2026 tickets from $181

Seattle to Denver at a glance

flight time, from 2h 30m to 7h 10m
2h 40m
straight-line distance
1,020 mi (1,641 km)
flights a week
49
flights today
7
first and last departure
05:05 - 10:06
lowest price, with a connection, 15 November
$181
lowest nonstop price
$238
airlines
4

Seattle to Denver flight schedule

49 flights a week, 7 today, 44 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
UA 757
United Airlines
05:05 Seattle-Tacoma International
08:42 Denver International
2h 37m
Daily
Boeing 737-900
WN 1679
Southwest Airlines
05:30 Seattle-Tacoma International
09:00 Denver International
2h 30m
Sat
Boeing 737
WN 4956
Southwest Airlines
06:05 Seattle-Tacoma International
09:35 Denver International
2h 30m
Fri
WN 4956
Southwest Airlines
06:10 Seattle-Tacoma International
09:45 Denver International
2h 35m
Mon, Tue, Wed, Thu
Boeing 737
WN 4956
Southwest Airlines
06:15 Seattle-Tacoma International
09:45 Denver International
2h 30m
Mon, Thu, Fri, Sun
Boeing 737
WN 4956
Southwest Airlines
06:45 Seattle-Tacoma International
10:15 Denver International
2h 30m
Sat
Boeing 737
WN 1030
Southwest Airlines
07:05 Seattle-Tacoma International
15:15 Denver International
7h 10m
Sat
AS 682
Alaska Airlines
07:23 Seattle-Tacoma International
11:14 Denver International
2h 51m
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737
AS 682
Alaska Airlines
07:37 Seattle-Tacoma International
11:21 Denver International
2h 44m
Mon, Fri
Boeing 737-900
DL 1358
Delta
08:30 Seattle-Tacoma International
12:17 Denver International
2h 47m
Daily
Airbus A220-300
UA 1505
United Airlines
08:30 Seattle-Tacoma International
12:14 Denver International
2h 44m
Daily
Boeing 737-800
WN 2150
Southwest Airlines
09:10 Seattle-Tacoma International
12:45 Denver International
2h 35m
Mon, Thu, Fri, Sun
WN 2150
Southwest Airlines
09:25 Seattle-Tacoma International
13:00 Denver International
2h 35m
Mon, Tue, Wed, Thu
Boeing 737
WN 2150
Southwest Airlines
09:30 Seattle-Tacoma International
13:05 Denver International
2h 35m
Tue, Wed
Boeing 737
AS 535
Alaska Airlines
10:06 Seattle-Tacoma International
13:58 Denver International
2h 52m
Daily
Boeing 737-900

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 4956
Southwest Airlines
05:15 Seattle-Tacoma International
08:50 Denver International
2h 35m
Seasonal
Boeing 737
WN 4956
Southwest Airlines
06:55 Seattle-Tacoma International
10:25 Denver International
2h 30m
Seasonal
Boeing 737
WN 4598
Southwest Airlines
05:30 Seattle-Tacoma International
09:00 Denver International
2h 30m
Seasonal
Boeing 737
UA 1686
United Airlines
05:05 Seattle-Tacoma International
08:42 Denver International
2h 37m
Seasonal
Airbus A320
AS 682
Alaska Airlines
07:25 Seattle-Tacoma International
11:10 Denver International
2h 45m
Seasonal
Boeing 737-800
UA 1356
United Airlines
08:30 Seattle-Tacoma International
12:14 Denver International
2h 44m
Seasonal
Boeing 737-800
UA 2601
United Airlines
05:00 Seattle-Tacoma International
08:41 Denver International
2h 41m
Seasonal
Airbus A320
AS 682
Alaska Airlines
07:32 Seattle-Tacoma International
11:17 Denver International
2h 45m
Seasonal
Boeing 737-900
UA 2632
United Airlines
08:38 Seattle-Tacoma International
12:23 Denver International
2h 45m
Seasonal
Airbus A320
AS 535
Alaska Airlines
10:05 Seattle-Tacoma International
13:50 Denver International
2h 45m
Seasonal
Boeing 737-900
DL 3694
Delta
08:25 Seattle-Tacoma International
12:17 Denver International
2h 52m
Seasonal
Embraer 175
UA 1686
United Airlines
05:00 Seattle-Tacoma International
08:41 Denver International
2h 41m
Seasonal
Airbus A320
AS 682
Alaska Airlines
07:05 Seattle-Tacoma International
10:49 Denver International
2h 44m
Seasonal
Boeing 737-900
WN 3485
Southwest Airlines
06:55 Seattle-Tacoma International
10:25 Denver International
2h 30m
Seasonal
Boeing 737
WN 3485
Southwest Airlines
06:40 Seattle-Tacoma International
10:10 Denver International
2h 30m
Seasonal
Boeing 737
WN 2952
Southwest Airlines
10:00 Seattle-Tacoma International
13:40 Denver International
2h 40m
Seasonal
Boeing 737-800
WN 3485
Southwest Airlines
05:15 Seattle-Tacoma International
08:45 Denver International
2h 30m
Seasonal
Boeing 737
WN 3486
Southwest Airlines
09:15 Seattle-Tacoma International
12:45 Denver International
2h 30m
Seasonal
Boeing 737
UA 1686
United Airlines
05:07 Seattle-Tacoma International
08:49 Denver International
2h 42m
Seasonal
Boeing 737
WN 3485
Southwest Airlines
05:30 Seattle-Tacoma International
09:00 Denver International
2h 30m
Seasonal
Boeing 737
AS 682
Alaska Airlines
08:06 Seattle-Tacoma International
11:55 Denver International
2h 49m
Seasonal
Boeing 737-900
WN 3485
Southwest Airlines
06:30 Seattle-Tacoma International
10:00 Denver International
2h 30m
Seasonal
Boeing 737
WN 3777
Southwest Airlines
05:15 Seattle-Tacoma International
08:50 Denver International
2h 35m
Seasonal
Boeing 737
WN 3147
Southwest Airlines
07:45 Seattle-Tacoma International
13:55 Denver International
5h 10m
Seasonal
Boeing 737
WN 3189
Southwest Airlines
08:45 Seattle-Tacoma International
12:25 Denver International
2h 40m
Seasonal
Boeing 737
WN 3777
Southwest Airlines
06:30 Seattle-Tacoma International
10:05 Denver International
2h 35m
Seasonal
Boeing 737
WN 3777
Southwest Airlines
05:35 Seattle-Tacoma International
09:10 Denver International
2h 35m
Seasonal
Boeing 737
WN 2605
Southwest Airlines
06:35 Seattle-Tacoma International
10:10 Denver International
2h 35m
Seasonal
Boeing 737
WN 3189
Southwest Airlines
09:15 Seattle-Tacoma International
12:50 Denver International
2h 35m
Seasonal
Boeing 737
WN 1339
Southwest Airlines
06:40 Seattle-Tacoma International
10:25 Denver International
2h 45m
Seasonal
Boeing 737
WN 3168
Southwest Airlines
08:50 Seattle-Tacoma International
12:40 Denver International
2h 50m
Seasonal
Boeing 737-800
WN 3727
Southwest Airlines
05:40 Seattle-Tacoma International
09:20 Denver International
2h 40m
Seasonal
Boeing 737
WN 3727
Southwest Airlines
06:35 Seattle-Tacoma International
10:20 Denver International
2h 45m
Seasonal
Boeing 737
WN 3727
Southwest Airlines
05:15 Seattle-Tacoma International
08:55 Denver International
2h 40m
Seasonal
Boeing 737
WN 3233
Southwest Airlines
07:55 Seattle-Tacoma International
11:40 Denver International
2h 45m
Seasonal
Boeing 737
WN 3728
Southwest Airlines
09:25 Seattle-Tacoma International
13:10 Denver International
2h 45m
Seasonal
Boeing 737
DL 2758
Delta
08:25 Seattle-Tacoma International
12:17 Denver International
2h 52m
Seasonal
Airbus A220-300
WN 3580
Southwest Airlines
05:15 Seattle-Tacoma International
08:50 Denver International
2h 35m
Seasonal
Boeing 737
WN 3581
Southwest Airlines
06:05 Seattle-Tacoma International
09:40 Denver International
2h 35m
Seasonal
Boeing 737
WN 3580
Southwest Airlines
05:55 Seattle-Tacoma International
09:30 Denver International
2h 35m
Seasonal
WN 3581
Southwest Airlines
09:15 Seattle-Tacoma International
12:55 Denver International
2h 40m
Seasonal
Boeing 737
WN 3580
Southwest Airlines
05:45 Seattle-Tacoma International
09:15 Denver International
2h 30m
Seasonal
Boeing 737
WN 3581
Southwest Airlines
07:45 Seattle-Tacoma International
11:30 Denver International
2h 45m
Seasonal
WN 3262
Southwest Airlines
09:00 Seattle-Tacoma International
12:40 Denver International
2h 40m
Seasonal
Boeing 737

Days of the week are taken from the schedule for the next 14 days; schedules change by season. Denver is 1 hour ahead of Seattle. The search shows seat availability and the price for your date.

Airlines flying Seattle to Denver

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Southwest Airlines15 a week United Airlines14 a week Alaska Airlines13 a week Delta7 a week

Airports

Where flights from Seattle to Denver depart and land

Departure from Seattle

Seattle-Tacoma International SEA

49 flights a week, 11 mi (18 km) from the city centre

About the airport

Arrival in Denver

Denver International DEN

49 flights a week, 18 mi (29 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from Seattle to Denver?
A nonstop flight takes 2 hours 40 minutes on average, from 2h 30m to 7h 10m depending on the flight.
How far is Denver from Seattle?
1,020 mi (1,641 km) in a straight line between the cities.
Which airlines fly nonstop from Seattle to Denver?
Southwest Airlines (15 a week), United Airlines (14 a week), Alaska Airlines (13 a week) and Delta (7 a week).
How many flights a day are there from Seattle to Denver?
7 flights today and 49 a week, about 7 a day on average.
When are the first and last flights from Seattle to Denver?
The first departure is at 05:05 (UA757), the last at 10:06 (AS535). Local time.
What is the cheapest upcoming date to fly from Seattle to Denver?
15 November 2026 (Sunday): from $181 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Seattle to Denver?
Alaska Airlines: nonstop tickets from $238 on 15 November by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Seattle and Denver?
Denver is 1 hour ahead of Seattle. Schedule times on this page are local to each airport.
Which Seattle airport do flights to Denver leave from?
Seattle-Tacoma International (49 a week).