Denver to Seattle (DEN–BFI) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
DEN–BFI is served by 4 airlines with nonstop service. Sun Country Airlines, Air Canada and Delta Air Lines lead the route. The flight covers 1,024 miles in approximately 2h 35m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| SY Sun Country Airlines | 1 | 738 | 2h56 | – | – | |
| AC Air Canada | 0 | – | – | Star Alliance | – | |
| DL Delta Air Lines | 0 | – | – | SkyTeam | – | |
| UA United Airlines | 0 | – | – | Star Alliance | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Seattle from Denver
| Metric | DEN→BFI | BJC→BFI | COS→BFI |
|---|---|---|---|
| Distance from DEN | – | 24 mi | 73 mi |
| Nonstop airlines | 4 | 2 | 1 |
| Weekly flights | 2 | 1 | – |
| Flight time | 2h 35m | 2h 20m | 2h 28m |
| Departure OTP | 100% | – | – |
Travel Essentials
DEN: MDT · BFI: PDT
When it's 6:00 PM in Denver, it's 5:00 PM in Seattle.
RTD A Line commuter rail runs from Denver Union Station to the airport (37 min, $10.50). Trains depart every 15 minutes during peak hours. The airport is 25 miles northeast of downtown; ride-shares cost $35–55 and take 30–45 minutes depending on I-70 traffic.Economy parking in lots 4–6 connects via free shuttle. Mountain shuttle services depart from Jeppesen Terminal's Ground Transportation level.
DEN–BFI Quick Facts
Frequently Asked Questions
Flights from DEN to BFI
Denver International Airport (DEN) and King County International Airport - Boeing Field (BFI) are connected by nonstop service from Sun Country Airlines, Air Canada, Delta Air Lines and United Airlines. With 2 weekly departures, this is a regularly served route.
DEN to BFI Flight Duration and Schedule
Nonstop flight time from DEN to BFI is about 2 hours 35 minutes gate to gate. The route covers a distance of 1,024 miles (1,648 km). There are approximately 2 weekly flights outbound and 1 return, totaling 3 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Denver (BJC), Colorado Springs (COS) and Pueblo (PUB).