Flights from Denver Airport DEN to Seattle Airport SEA

We've found the cheapest flights to Seattle

Returns from £119.99

One-way from £34.93

Flights are available to Denver International from Seattle-Tacoma International with a choice of 18 airliners, Air Transport International, SAS, Copa Airlines, WestJet, Virgin Atlantic, Korean Air, Jet Linx Aviation, All Nippon Airways, Starlux, Condor, Volaris, Frontier, Icelandair, Delta Air Lines, Qatar Airways, Southwest Airlines, Alaska Airlines and United Airlines. The flight time from Denver International to Seattle-Tacoma International is around 2 Hours 45 Minutes and you will cover 1,645 Km (1,022 Miles). The airport code for Denver International is DEN and for Seattle-Tacoma International it is SEA.

The price of the flight is dependent on the time of the day you fly (if there is a choice) and the day of the week with weekends being normally a higher price. If you are looking to get the cheapest flights possible then we recommend you travel mid week or in the late evening. On occasions, airliners may have special offers so look out for these. Flights to Seattle-Tacoma International United States normally increase in price the nearer the journey date, so it is worth trying to book your tickets in advance if you can.

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

The table below shows the amount of daily flights in operation from Denver International (DEN) to Seattle-Tacoma International (SEA).

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
United Airlines646665006:0021:10VIEW FLIGHTS
Alaska Airlines556445006:0220:17VIEW FLIGHTS
Southwest Airlines455444007:4523:30VIEW FLIGHTS
Qatar Airways434333006:0220:17VIEW FLIGHTS
Delta Air Lines333333006:3020:44VIEW FLIGHTS
Icelandair323222008:4020:17VIEW FLIGHTS
Volaris222222007:4514:18VIEW FLIGHTS
Frontier222222007:4514:18VIEW FLIGHTS
Starlux212111014:5320:17VIEW FLIGHTS
Condor212111008:4014:53VIEW FLIGHTS
Korean Air111111006:3006:30VIEW FLIGHTS
Jet Linx Aviation111111008:4008:40VIEW FLIGHTS
All Nippon Airways111111011:2411:24VIEW FLIGHTS
WestJet110111006:3006:30VIEW FLIGHTS
Virgin Atlantic111011006:3006:30VIEW FLIGHTS
Copa Airlines101110021:1021:10VIEW FLIGHTS
SAS010011006:3006:30VIEW FLIGHTS
Air Transport International010001021:4521:45VIEW FLIGHTS

United Airlines offer the most direct flights from Denver International to Seattle-Tacoma International with an average of 33 flights a week. The earliest flights are operated at 06:00 and the latest flights operated at 21:10 and the most common flight numbers are UA1424, UA1482, UA2013 and UA2164

Contact United Airlines at united.com to booking a flight or find up to date information on the flight times.

Below you can see the times of all flights. These flight times do vary so we recommend you look on the appropriate airline website for accurate information for the dates you are departing.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
06:00
AirlineFlightNo
United AirlinesUA1482
06:02
AirlineFlightNo
Alaska AirlinesAS643
Qatar AirwaysQR2036
06:30
AirlineFlightNo
Korean AirKE3014
WestJetWS6587
Delta Air LinesDL1731
Virgin AtlanticVS2069
07:45
AirlineFlightNo
Southwest AirlinesWN1713
VolarisY42262
FrontierF94545
08:01
AirlineFlightNo
United AirlinesUA2271
08:40
AirlineFlightNo
Alaska AirlinesAS317
IcelandairFI7698
Qatar AirwaysQR2056
CondorDE5208
Jet Linx AviationJL6364
11:24
AirlineFlightNo
United AirlinesUA1424
All Nippon AirwaysNH7375
12:05
AirlineFlightNo
Southwest AirlinesWN3051
14:18
AirlineFlightNo
VolarisY42082
FrontierF91175
14:25
AirlineFlightNo
Southwest AirlinesWN4130
14:53
AirlineFlightNo
Alaska AirlinesAS381
IcelandairFI7722
Qatar AirwaysQR2037
CondorDE5237
StarluxJX7037
15:23
AirlineFlightNo
Delta Air LinesDL1358
15:55
AirlineFlightNo
United AirlinesUA2164
17:59
AirlineFlightNo
United AirlinesUA2013
18:38
AirlineFlightNo
Alaska AirlinesAS535
20:17
AirlineFlightNo
Alaska AirlinesAS249
IcelandairFI7694
Qatar AirwaysQR8899
StarluxJX7039
20:44
AirlineFlightNo
Delta Air LinesDL2543
21:10
AirlineFlightNo
United AirlinesUA2651
Southwest AirlinesWN3856
Copa AirlinesCM1141
VIEW FLIGHTS
Tuesday
06:00
AirlineFlightNo
United AirlinesUA1482
06:02
AirlineFlightNo
Alaska AirlinesAS643
Qatar AirwaysQR2036
06:30
AirlineFlightNo
Korean AirKE3014
SASSK3801
WestJetWS7288
Delta Air LinesDL1731
Virgin AtlanticVS2069
07:45
AirlineFlightNo
VolarisY42262
FrontierF94545
08:01
AirlineFlightNo
United AirlinesUA2271
08:05
AirlineFlightNo
Southwest AirlinesWN1713
08:40
AirlineFlightNo
Alaska AirlinesAS317
IcelandairFI7698
Qatar AirwaysQR2056
CondorDE5208
Jet Linx AviationJL6364
11:24
AirlineFlightNo
United AirlinesUA1424
All Nippon AirwaysNH7375
12:05
AirlineFlightNo
Southwest AirlinesWN3051
14:18
AirlineFlightNo
VolarisY42082
FrontierF91175
14:45
AirlineFlightNo
Southwest AirlinesWN4130
14:53
AirlineFlightNo
Alaska AirlinesAS381
15:23
AirlineFlightNo
Delta Air LinesDL1358
15:58
AirlineFlightNo
United AirlinesUA2013
18:38
AirlineFlightNo
Alaska AirlinesAS535
20:17
AirlineFlightNo
Alaska AirlinesAS249
IcelandairFI7694
Qatar AirwaysQR8899
StarluxJX7039
20:25
AirlineFlightNo
Southwest AirlinesWN1716
20:44
AirlineFlightNo
Delta Air LinesDL2543
21:35
AirlineFlightNo
Southwest AirlinesWN3856
21:45
AirlineFlightNo
Air Transport International8C3395
VIEW FLIGHTS
Wednesday
06:00
AirlineFlightNo
United AirlinesUA1482
06:02
AirlineFlightNo
Alaska AirlinesAS643
Qatar AirwaysQR2036
06:30
AirlineFlightNo
Korean AirKE3014
Delta Air LinesDL1731
Virgin AtlanticVS2069
07:45
AirlineFlightNo
VolarisY42262
FrontierF94545
08:01
AirlineFlightNo
United AirlinesUA2271
08:05
AirlineFlightNo
Southwest AirlinesWN1713
08:40
AirlineFlightNo
Alaska AirlinesAS317
IcelandairFI7698
Qatar AirwaysQR2056
CondorDE5208
Jet Linx AviationJL6364
11:24
AirlineFlightNo
United AirlinesUA1424
All Nippon AirwaysNH7375
11:56
AirlineFlightNo
Alaska AirlinesAS432
12:05
AirlineFlightNo
Southwest AirlinesWN3051
14:18
AirlineFlightNo
VolarisY42082
FrontierF91175
14:45
AirlineFlightNo
Southwest AirlinesWN4130
14:53
AirlineFlightNo
Alaska AirlinesAS381
IcelandairFI7722
Qatar AirwaysQR2037
CondorDE5237
StarluxJX7037
15:23
AirlineFlightNo
Delta Air LinesDL1358
15:55
AirlineFlightNo
United AirlinesUA2164
15:58
AirlineFlightNo
United AirlinesUA2013
18:38
AirlineFlightNo
Alaska AirlinesAS535
20:17
AirlineFlightNo
Alaska AirlinesAS249
IcelandairFI7694
Qatar AirwaysQR8899
StarluxJX7039
20:25
AirlineFlightNo
Southwest AirlinesWN1716
20:44
AirlineFlightNo
Delta Air LinesDL2543
21:10
AirlineFlightNo
United AirlinesUA2651
Copa AirlinesCM1141
23:30
AirlineFlightNo
Southwest AirlinesWN3856
VIEW FLIGHTS
Thursday
06:00
AirlineFlightNo
United AirlinesUA1482
06:02
AirlineFlightNo
Alaska AirlinesAS643
Qatar AirwaysQR2036
06:30
AirlineFlightNo
Korean AirKE3014
WestJetWS6587
Delta Air LinesDL1731
07:45
AirlineFlightNo
VolarisY42262
FrontierF94545
08:01
AirlineFlightNo
United AirlinesUA2271
08:40
AirlineFlightNo
Alaska AirlinesAS317
IcelandairFI7698
Qatar AirwaysQR2056
CondorDE5208
Jet Linx AviationJL6364
09:45
AirlineFlightNo
Southwest AirlinesWN1713
11:24
AirlineFlightNo
United AirlinesUA1424
All Nippon AirwaysNH7375
12:05
AirlineFlightNo
Southwest AirlinesWN3051
14:18
AirlineFlightNo
VolarisY42082
FrontierF91175
14:25
AirlineFlightNo
Southwest AirlinesWN4130
14:53
AirlineFlightNo
Alaska AirlinesAS381
15:23
AirlineFlightNo
Delta Air LinesDL1358
15:55
AirlineFlightNo
United AirlinesUA2164
17:59
AirlineFlightNo
United AirlinesUA2013
20:17
AirlineFlightNo
Alaska AirlinesAS249
IcelandairFI7694
Qatar AirwaysQR8899
StarluxJX7039
20:44
AirlineFlightNo
Delta Air LinesDL2543
21:10
AirlineFlightNo
United AirlinesUA2651
Southwest AirlinesWN3856
Copa AirlinesCM1141
VIEW FLIGHTS
Friday
06:00
AirlineFlightNo
United AirlinesUA1482
06:02
AirlineFlightNo
Alaska AirlinesAS643
Qatar AirwaysQR2036
06:30
AirlineFlightNo
Korean AirKE3014
SASSK3801
WestJetWS5484
Delta Air LinesDL1731
Virgin AtlanticVS2069
07:45
AirlineFlightNo
VolarisY42262
FrontierF94545
08:01
AirlineFlightNo
United AirlinesUA2271
08:40
AirlineFlightNo
Alaska AirlinesAS317
IcelandairFI7698
Qatar AirwaysQR2056
CondorDE5208
Jet Linx AviationJL6364
09:45
AirlineFlightNo
Southwest AirlinesWN1713
11:24
AirlineFlightNo
United AirlinesUA1424
All Nippon AirwaysNH7375
12:05
AirlineFlightNo
Southwest AirlinesWN3051
14:18
AirlineFlightNo
VolarisY42082
FrontierF91175
14:25
AirlineFlightNo
Southwest AirlinesWN4130
14:53
AirlineFlightNo
Alaska AirlinesAS381
15:23
AirlineFlightNo
Delta Air LinesDL1358
15:55
AirlineFlightNo
United AirlinesUA2164
17:59
AirlineFlightNo
United AirlinesUA2013
20:17
AirlineFlightNo
Alaska AirlinesAS249
IcelandairFI7694
Qatar AirwaysQR8899
StarluxJX7039
20:44
AirlineFlightNo
Delta Air LinesDL2543
21:10
AirlineFlightNo
United AirlinesUA2651
Copa AirlinesCM1141
23:05
AirlineFlightNo
Southwest AirlinesWN3856
VIEW FLIGHTS
Saturday
06:00
AirlineFlightNo
United AirlinesUA1482
06:02
AirlineFlightNo
Alaska AirlinesAS643
Qatar AirwaysQR2036
06:30
AirlineFlightNo
Korean AirKE3014
SASSK3801
WestJetWS7288
Delta Air LinesDL1731
Virgin AtlanticVS2069
07:45
AirlineFlightNo
United AirlinesUA2271
VolarisY42262
FrontierF94545
08:40
AirlineFlightNo
Alaska AirlinesAS317
IcelandairFI7698
Qatar AirwaysQR2056
CondorDE5208
Jet Linx AviationJL6364
10:05
AirlineFlightNo
Southwest AirlinesWN1780
11:20
AirlineFlightNo
Southwest AirlinesWN4130
11:24
AirlineFlightNo
United AirlinesUA1424
All Nippon AirwaysNH7375
14:18
AirlineFlightNo
VolarisY42082
FrontierF91175
14:53
AirlineFlightNo
Alaska AirlinesAS381
15:23
AirlineFlightNo
Delta Air LinesDL1358
15:58
AirlineFlightNo
United AirlinesUA2013
18:00
AirlineFlightNo
Southwest AirlinesWN1716
18:15
AirlineFlightNo
Alaska AirlinesAS249
IcelandairFI7694
Qatar AirwaysQR8899
StarluxJX7039
18:38
AirlineFlightNo
Alaska AirlinesAS535
20:44
AirlineFlightNo
Delta Air LinesDL2543
21:19
AirlineFlightNo
United AirlinesUA360
21:45
AirlineFlightNo
Air Transport International8C3395
22:20
AirlineFlightNo
Southwest AirlinesWN3856
VIEW FLIGHTS

Before departing Denver International please check that you are holding a valid passport.

Planning a Holiday or Business Trip?

Search for cheap rental cars at DEN

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

DIRECT Frontier Airlines
What is the cheapest direct flight one way from Denver DEN to Seattle SEA?
The cheapest direct flight one way from Denver DEN to Seattle SEA is £34.93 ($46 €40.55)
£34.93
$46 | €40.55
Check Latest Price
DIRECT Frontier Airlines
What is the cheapest direct return flight from Denver DEN to Seattle SEA?
The cheapest direct return flight from Denver DEN to Seattle SEA is £119.99 ($158 €139.28)
£119.99
$158 | €139.28
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 DEN to SEA

Was your flight delayed or cancelled?

Was your flight delayed or cancelled?

You may be eligible to receive up to 600 EUR compensation per person in your party.

Claim Now!

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

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

Alternative Airports in United States with Connections from Denver Airport

Looking for the best hire car deals?

Search for cheap rental cars in Denver

Useful Information about Denver Airport

New Q1 Passenger Number Record Set at Denver Airport – Up 19% Year on Year

Denver Airport achieved a new record in passenger numbers during the first quarter. There was a notable increase of 19% compared to the same period last year. Compared to the pre-pandemic figures of the first quarter, the numbers surpassed them by an impressive 15%.

View...
Lounges at Denver Airport

See all the airport lounges, locations and opening times available at Denver Airport

View...
Eating and Drinking at Denver Airport

See all bars and restaurants at Denver Airport, including locations and if they are before or after check-in

View...
Duty Free Shopping at Denver Airport

See all shops available at Denver Airport - plan your duty free shopping in advance

View...