Flights from Seattle Airport SEA to Denver Airport DEN

We've found the cheapest flights to Denver

Returns from £67.59

One-way from £30.38

Flights are available to Seattle-Tacoma International from Denver International with a choice of 19 airliners, Finnair, SAS, All Nippon Airways, Air Transport International, Volaris, Virgin Atlantic, Starlux, Condor, Air France, KLM, WestJet, Korean Air, Icelandair, Frontier, Delta Air Lines, Qatar Airways, Southwest Airlines, Alaska Airlines and United Airlines. The distance covered when flying from Seattle-Tacoma International to Denver International United States is 1,645 Km (1,022 Miles) with the travel time being around 2 Hours 45 Minutes. SEA is the Airport code for Seattle-Tacoma International and DEN is for Denver International United States.

The cost of your trip (flights) can change at weekends and at certain times of the day (if there is a choice of flights to your chosen destination. It is normally worth booking flights well in advance if possible to get the best deal to Denver International United States perhaps midweek or late evening. Please book in advance if you want to take advantage of the best prices airlines have to offer as prices normally increase as time goes on.

The time zone at Denver International is 7.0 GMT compared to 8.0 GMT at Seattle-Tacoma International so bare this in mind is you need to make travel arrangements when you arrive at Denver International.

The table below displays the numbers of daily flights from Seattle-Tacoma International (SEA) to Denver International (DEN) and the relevant airlines that fly.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
United Airlines646654005:0720:05VIEW FLIGHTS
Alaska Airlines555555008:0422:45VIEW FLIGHTS
Southwest Airlines455443005:1519:30VIEW FLIGHTS
Qatar Airways343333008:0422:45VIEW FLIGHTS
Delta Air Lines333333008:3019:56VIEW FLIGHTS
Korean Air222222013:5019:56VIEW FLIGHTS
Icelandair222222011:4413:33VIEW FLIGHTS
Frontier222222015:3319:41VIEW FLIGHTS
WestJet211222013:5019:56VIEW FLIGHTS
KLM111112013:5013:50VIEW FLIGHTS
Volaris111111019:4119:41VIEW FLIGHTS
Virgin Atlantic111111019:5619:56VIEW FLIGHTS
Starlux111111022:4522:45VIEW FLIGHTS
Condor111111022:4522:45VIEW FLIGHTS
Air France111111013:5013:50VIEW FLIGHTS
All Nippon Airways101110019:5423:49VIEW FLIGHTS
Air Transport International010111016:2016:20VIEW FLIGHTS
SAS010011019:5619:56VIEW FLIGHTS
Finnair010010022:4522:45VIEW FLIGHTS

United Airlines offer the most direct flights from Seattle-Tacoma International to Denver International with an average of 31 flights a week. The earliest flights are operated at 05:07 and the latest flights operated at 20:05 and the most common flight numbers are UA1218, UA1505, UA1715 and UA1915

For more details regarding United Airlines flight information and bookings you can visit them at united.com

Please see below the times of flights. These times and frequency may vary at different times of the year please visit the website for more information.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
05:07
AirlineFlightNo
United AirlinesUA1915
05:15
AirlineFlightNo
Southwest AirlinesWN3615
07:50
AirlineFlightNo
Southwest AirlinesWN3397
08:04
AirlineFlightNo
Alaska AirlinesAS375
Qatar AirwaysQR2194
08:30
AirlineFlightNo
Delta Air LinesDL1358
08:56
AirlineFlightNo
United AirlinesUA1505
11:02
AirlineFlightNo
United AirlinesUA1715
11:44
AirlineFlightNo
Alaska AirlinesAS535
IcelandairFI7695
Qatar AirwaysQR8900
13:33
AirlineFlightNo
Alaska AirlinesAS242
IcelandairFI7699
13:50
AirlineFlightNo
Korean AirKE3013
WestJetWS8091
Air FranceAF6811
KLMKL7354
Delta Air LinesDL2543
14:35
AirlineFlightNo
Southwest AirlinesWN3617
14:36
AirlineFlightNo
United AirlinesUA655
15:33
AirlineFlightNo
FrontierF93406
15:40
AirlineFlightNo
United AirlinesUA757
16:26
AirlineFlightNo
Alaska AirlinesAS602
19:20
AirlineFlightNo
Southwest AirlinesWN4845
19:41
AirlineFlightNo
VolarisY42083
FrontierF91176
19:54
AirlineFlightNo
United AirlinesUA1218
All Nippon AirwaysNH7376
19:56
AirlineFlightNo
Korean AirKE3495
WestJetWS7830
Delta Air LinesDL2851
Virgin AtlanticVS2102
22:45
AirlineFlightNo
Alaska AirlinesAS310
Qatar AirwaysQR2960
CondorDE5270
StarluxJX7036
VIEW FLIGHTS
Tuesday
05:07
AirlineFlightNo
United AirlinesUA1915
05:15
AirlineFlightNo
Southwest AirlinesWN3615
07:35
AirlineFlightNo
Southwest AirlinesWN4920
08:04
AirlineFlightNo
Alaska AirlinesAS375
Qatar AirwaysQR2115
08:30
AirlineFlightNo
Delta Air LinesDL1358
08:56
AirlineFlightNo
United AirlinesUA1505
11:02
AirlineFlightNo
United AirlinesUA1715
11:44
AirlineFlightNo
Alaska AirlinesAS535
IcelandairFI7695
Qatar AirwaysQR8900
13:33
AirlineFlightNo
Alaska AirlinesAS242
IcelandairFI7699
13:50
AirlineFlightNo
Korean AirKE3013
WestJetWS8091
Air FranceAF6811
KLMKL7354
Delta Air LinesDL2543
14:15
AirlineFlightNo
Southwest AirlinesWN1049
14:36
AirlineFlightNo
United AirlinesUA655
15:33
AirlineFlightNo
FrontierF93406
16:20
AirlineFlightNo
Air Transport International8C3397
16:26
AirlineFlightNo
Alaska AirlinesAS602
Qatar AirwaysQR3441
16:45
AirlineFlightNo
Southwest AirlinesWN2720
19:30
AirlineFlightNo
Southwest AirlinesWN2328
19:41
AirlineFlightNo
VolarisY42083
FrontierF91176
19:56
AirlineFlightNo
Korean AirKE3495
SASSK3658
Delta Air LinesDL2851
Virgin AtlanticVS2102
22:45
AirlineFlightNo
FinnairAY2595
Alaska AirlinesAS310
Qatar AirwaysQR2960
CondorDE5270
StarluxJX7036
VIEW FLIGHTS
Wednesday
05:07
AirlineFlightNo
United AirlinesUA1915
05:15
AirlineFlightNo
Southwest AirlinesWN3615
07:35
AirlineFlightNo
Southwest AirlinesWN4920
08:04
AirlineFlightNo
Alaska AirlinesAS375
08:30
AirlineFlightNo
Delta Air LinesDL1358
08:58
AirlineFlightNo
United AirlinesUA1505
11:02
AirlineFlightNo
United AirlinesUA1715
11:44
AirlineFlightNo
Alaska AirlinesAS535
IcelandairFI7695
Qatar AirwaysQR8900
13:33
AirlineFlightNo
Alaska AirlinesAS242
IcelandairFI7699
13:50
AirlineFlightNo
Korean AirKE3013
Air FranceAF6811
KLMKL7354
Delta Air LinesDL2543
14:15
AirlineFlightNo
Southwest AirlinesWN1049
14:36
AirlineFlightNo
United AirlinesUA655
15:33
AirlineFlightNo
FrontierF93406
15:40
AirlineFlightNo
United AirlinesUA757
16:26
AirlineFlightNo
Alaska AirlinesAS602
Qatar AirwaysQR3441
16:45
AirlineFlightNo
Southwest AirlinesWN2720
19:00
AirlineFlightNo
Alaska AirlinesAS310
19:30
AirlineFlightNo
Southwest AirlinesWN2328
19:41
AirlineFlightNo
VolarisY42083
FrontierF91176
19:54
AirlineFlightNo
United AirlinesUA1218
All Nippon AirwaysNH7376
19:56
AirlineFlightNo
Korean AirKE3495
WestJetWS7695
Delta Air LinesDL2851
Virgin AtlanticVS2102
22:45
AirlineFlightNo
Qatar AirwaysQR2960
CondorDE5270
StarluxJX7036
VIEW FLIGHTS
Thursday
05:07
AirlineFlightNo
United AirlinesUA1915
05:15
AirlineFlightNo
Southwest AirlinesWN3615
07:50
AirlineFlightNo
Southwest AirlinesWN3397
08:04
AirlineFlightNo
Alaska AirlinesAS375
08:30
AirlineFlightNo
Delta Air LinesDL1358
08:56
AirlineFlightNo
United AirlinesUA1505
11:02
AirlineFlightNo
United AirlinesUA1715
11:44
AirlineFlightNo
Alaska AirlinesAS535
IcelandairFI7695
Qatar AirwaysQR8900
13:33
AirlineFlightNo
Alaska AirlinesAS242
IcelandairFI7699
13:50
AirlineFlightNo
Korean AirKE3013
WestJetWS8091
Air FranceAF6811
KLMKL7354
Delta Air LinesDL2543
14:35
AirlineFlightNo
Southwest AirlinesWN3617
14:36
AirlineFlightNo
United AirlinesUA655
15:33
AirlineFlightNo
FrontierF93406
15:40
AirlineFlightNo
United AirlinesUA757
16:20
AirlineFlightNo
Air Transport International8C3397
16:26
AirlineFlightNo
Alaska AirlinesAS602
Qatar AirwaysQR3441
19:20
AirlineFlightNo
Southwest AirlinesWN4845
19:41
AirlineFlightNo
VolarisY42083
FrontierF91176
19:54
AirlineFlightNo
United AirlinesUA1218
All Nippon AirwaysNH7376
19:56
AirlineFlightNo
Korean AirKE3495
WestJetWS7830
Delta Air LinesDL2851
Virgin AtlanticVS2102
22:45
AirlineFlightNo
Alaska AirlinesAS310
Qatar AirwaysQR2960
CondorDE5270
StarluxJX7036
VIEW FLIGHTS
Friday
05:07
AirlineFlightNo
United AirlinesUA1915
05:15
AirlineFlightNo
Southwest AirlinesWN3615
07:50
AirlineFlightNo
Southwest AirlinesWN3397
08:04
AirlineFlightNo
Alaska AirlinesAS375
08:30
AirlineFlightNo
Delta Air LinesDL1358
08:56
AirlineFlightNo
United AirlinesUA1505
11:02
AirlineFlightNo
United AirlinesUA1715
11:44
AirlineFlightNo
Alaska AirlinesAS535
IcelandairFI7695
Qatar AirwaysQR8900
13:33
AirlineFlightNo
Alaska AirlinesAS242
IcelandairFI7699
13:50
AirlineFlightNo
Korean AirKE3013
WestJetWS8091
Air FranceAF6811
KLMKL7354
Delta Air LinesDL2543
14:35
AirlineFlightNo
Southwest AirlinesWN3617
14:36
AirlineFlightNo
United AirlinesUA655
15:33
AirlineFlightNo
FrontierF93406
16:20
AirlineFlightNo
Air Transport International8C3397
16:26
AirlineFlightNo
Alaska AirlinesAS602
Qatar AirwaysQR3441
19:20
AirlineFlightNo
Southwest AirlinesWN4845
19:41
AirlineFlightNo
VolarisY42083
FrontierF91176
19:56
AirlineFlightNo
Korean AirKE3495
SASSK3658
WestJetWS7830
Delta Air LinesDL2851
Virgin AtlanticVS2102
20:05
AirlineFlightNo
United AirlinesUA1218
22:45
AirlineFlightNo
FinnairAY2595
Alaska AirlinesAS310
Qatar AirwaysQR2960
CondorDE5270
StarluxJX7036
23:49
AirlineFlightNo
All Nippon AirwaysNH7376
VIEW FLIGHTS
Saturday
05:00
AirlineFlightNo
Southwest AirlinesWN3615
05:07
AirlineFlightNo
United AirlinesUA1915
08:04
AirlineFlightNo
Alaska AirlinesAS375
08:30
AirlineFlightNo
Delta Air LinesDL1358
08:56
AirlineFlightNo
United AirlinesUA1505
11:02
AirlineFlightNo
United AirlinesUA1715
11:44
AirlineFlightNo
Alaska AirlinesAS535
IcelandairFI7695
Qatar AirwaysQR8900
13:30
AirlineFlightNo
Southwest AirlinesWN3617
13:33
AirlineFlightNo
Alaska AirlinesAS242
IcelandairFI7699
13:50
AirlineFlightNo
Korean AirKE3013
WestJetWS8091
Air FranceAF6811
KLMKL7354
Delta Air LinesDL2543
15:33
AirlineFlightNo
FrontierF93406
15:40
AirlineFlightNo
United AirlinesUA757
16:20
AirlineFlightNo
Air Transport International8C3397
16:29
AirlineFlightNo
Alaska AirlinesAS602
Qatar AirwaysQR3441
19:00
AirlineFlightNo
Alaska AirlinesAS310
19:35
AirlineFlightNo
Southwest AirlinesWN4845
19:41
AirlineFlightNo
VolarisY42083
FrontierF91176
19:56
AirlineFlightNo
Korean AirKE3495
SASSK3658
WestJetWS7830
KLMKL7713
Delta Air LinesDL2851
Virgin AtlanticVS2102
22:45
AirlineFlightNo
Qatar AirwaysQR2960
CondorDE5270
StarluxJX7036
VIEW FLIGHTS

Instead of flying directly from Seattle-Tacoma International and arrive at Denver International, you may arrive Denver International by another airport. Please see chart below for a list of these.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Everett to Denver01,665 km (1,034 miles)2 Hours 46 Minutes
Richmond Vancouver to Denver01,789 km (1,112 miles)2 Hours 55 Minutes

Remember to have some local currency before travelling to Denver International as there may not be a bureau de change open upon your arrival.

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Flight Price FAQ - Seattle (SEA) to Denver (DEN)

DIRECT Frontier Airlines
What is the cheapest direct flight one way from Seattle SEA to Denver DEN?
The cheapest direct flight one way from Seattle SEA to Denver DEN is £30.38 ($40 €35.26)
£30.38
$40 | €35.26
Check Latest Price
DIRECT Frontier Airlines
What is the cheapest direct return flight from Seattle SEA to Denver DEN?
The cheapest direct return flight from Seattle SEA to Denver DEN is £67.59 ($89 €78.45)
£67.59
$89 | €78.45
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from SEA to DEN

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Flight Info FAQ - Seattle (SEA) to Denver (DEN)

Who flies from Seattle to Denver?
The following airlines fly from Seattle (SEA) to Denver (DEN): Air France, Air Transport International, Alaska Airlines, All Nippon Airways, Condor, Delta Air Lines, Finnair, Frontier, Icelandair, KLM, Korean Air, Qatar Airways, SAS, Southwest Airlines, Starlux, United Airlines, Virgin Atlantic, Volaris, WestJet.
How far is the flight from Seattle to Denver?
The flight from Seattle to Denver is 1,645KM or 1,022 miles.
How long does the flight from Seattle to Denver to take?
The flight from Seattle to Denver takes 2 Hours 45 Minutes.

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