Direct flights from Seattle to Denver

Did you mean Flights from Denver to Seattle?

Seattle

United States

SEA

Seattle Tacoma International Airport

Denver

United States

DEN

Denver International Airport

Route: Nonstop service available
Distance: 1,022 miles
Marketing airlines: 22 airlines
Aircraft: 15 aircraft types
Dates: Oct 19, 2026 – Oct 17, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 5,000 points + $5.00 for SEA → DEN, Economy, on 2026-11-18, booked with Frontier Miles. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-10-23 – 2026-11-21.

SEA → DENEconomy
F93406
5,000 points+ $5.00
Departure
2026-11-18
Seats seen
2
Book with
Frontier Miles
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
F91916
5,000 points+ $5.00
Departure
2026-11-21
Seats seen
2
Book with
Frontier Miles
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
AS310
7,500 points+ $5.00
Departure
2026-11-14
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 14:07
SEA → DENEconomy
AS535
7,500 points+ $5.00
Departure
2026-11-14
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 14:07
SEA → DENEconomy
AS421
7,500 points+ $5.00
Departure
2026-11-14
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 14:07
SEA → DENEconomy
AS535
7,500 points+ $5.00
Departure
2026-11-17
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
AS682
7,500 points+ $5.00
Departure
2026-11-17
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
AS421
7,500 points+ $5.00
Departure
2026-11-18
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
AS535
7,500 points+ $5.00
Departure
2026-11-18
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
AS310
7,500 points+ $5.00
Departure
2026-11-18
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
F91916
7,500 points+ $5.00
Departure
2026-11-20
Seats seen
2
Book with
Frontier Miles
Observed (UTC)
2026-10-21 09:19
SEA → DENEconomy
AS440
7,500 points+ $5.00
Departure
2026-11-21
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 06:01

Seattle to Denver route overview

Seattle Tacoma International Airport (SEA) serves Seattle; Denver International Airport (DEN) serves Denver.

The airports are 1,022 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from SEA to DEN.

Marketing airlines listed in the current schedule, including codeshare sellers, are Air France (AF), Alaska Airlines (AS), Finnair (AY), Copa Airlines (CM), Cathay Pacific (CX), Condor (DE), Delta Air Lines (DL), Frontier Airlines (F9), Icelandair (FI), Hawaiian Airlines (HA), Japan Airlines (JL), Starlux Airlines (JX), Korean Air (KE), KLM (KL), All Nippon Airways (NH), Qatar Airways (QR), Scandinavian Airlines (SK), United Airlines (UA), Virgin Atlantic (VS), Southwest Airlines (WN), WestJet (WS) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 17, 2027.

Marketing airlines on the Seattle to Denver route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Air France (AF)Codeshare only
Finnair (AY)Codeshare only
Copa Airlines (CM)Codeshare only
Cathay Pacific (CX)Codeshare only
Condor (DE)Codeshare only
Icelandair (FI)Codeshare only
Hawaiian Airlines (HA)Codeshare only
Japan Airlines (JL)Codeshare only
Starlux Airlines (JX)Codeshare only
Korean Air (KE)Codeshare only
KLM (KL)Codeshare only
All Nippon Airways (NH)Codeshare only
Scandinavian Airlines (SK)Codeshare only
Virgin Atlantic (VS)Codeshare only
WestJet (WS)Codeshare only
Volaris (Y4)Codeshare only

Airline alliance affiliations represented: Oneworld, SkyTeam, Star Alliance

Aircraft flying from SEA to DEN

Frequently asked questions

Which airports serve the Seattle to Denver route?

Seattle Tacoma International Airport (SEA) is the origin airport and Denver International Airport (DEN) is the destination airport.

How far is Denver from Seattle?

SEA and DEN are approximately 1,022 miles apart by great-circle distance.

Are there direct flights from SEA to DEN?

Yes. Roame's current schedule feed shows nonstop service from SEA to DEN.

Which airlines market flights from SEA to DEN?

Which aircraft fly from SEA to DEN?

Aircraft listed in the current schedule include Airbus A220-100 (221), Airbus A220-300 (223), Airbus A319 (319), Airbus A320 (320), Airbus A321 (321), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737-900 Winglets (73J), Boeing 737 MAX 8 (7M8), 7S7, Embraer 175 (long wing) (E7W) and JET.