Denver to Seattle (DEN–BFI) — Airlines, Schedules & Connections

DEN Airport Page →
1,024 mi airlines charter/private 1/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 1 1-stop flight Verified 2w ago
Also flown by charter / private operators: NetJets Aviation.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

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.

✦ 1-Stop connections via 1 hub
BUF Buffalo ~9h 19m UAWN HTT Buffalo (BUF) to Seattle flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Denver to Seattle
Connecting service available through multiple hubs.
3 Airlines 1,024 mi 2h 16m nonstop -1h behind

DEN–BFI had nonstop service from Air Canada, Delta Air Lines and United Airlines, last on the schedule in July 2026. There's no nonstop on it right now, so today you'd fly it with one stop. The connecting options below are sorted by layover. Nonstop, it's about 1,024 miles in 2h 16m.

Airline Landscape

Carriers that operated nonstop DEN–BFI service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AC Air Canada 0 69% Star Alliance
DL Delta Air Lines 0 69% SkyTeam
UA United Airlines 0 69% Star Alliance
Alliance coverage
Star Alliance: AC + UA (0 flights/wk, 0%)
SkyTeam: DL (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Connection Landscape

1-stop and 2-stop options for DEN to BFI.
1-STOP
One-Stop Connections
1
Hubs
~9h
Fastest
~9h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
0
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
DEN → BFI
69%
Moderate delays possible. Allow buffer time.
Departing
69%
Return
BFI → DEN
84%
Generally reliable. Most flights run on time.
Arriving
84%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. DEN delays →

Other ways to reach Seattle from Denver

Nearby airports with service to King County International Airport - Boeing Field.
Metric DEN→BFI BJC→BFI COS→BFI
Distance from DEN 24 mi 73 mi
Nonstop airlines 1 1
Weekly flights
Flight time 2h 16m 2h 15m 2h 28m
Departure OTP 69%
Airports within 200 miles of DEN with service to King County International Airport - Boeing Field.

Travel Essentials

Practical planning for this route.
Time Difference
-1h
Seattle is 1 hour behind Denver.
DEN: MDT · BFI: PDT

When it's 6:00 PM in Denver, it's 5:00 PM in Seattle.
Distance & Flight Time
1,024 mi / 1,648 km
Nonstop flight time is approximately 2h 16m gate to gate.
Getting to DEN

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

Key statistics for the Denver to Seattle route.
Route details
Distance1,024 mi / 1,648 km
Flight time2h 16m
Time difference-1 hour
Airlines (nonstop)3
1-stop connectionsAvailable
Origin: DEN
IATA / ICAODEN / KDEN
TimezoneAmerica/Denver
Passengers/yr82.4M
Elevation5,431 ft / 1,655 m
Destination: BFI
IATA / ICAOBFI / KBFI
TimezoneAmerica/Los_Angeles
Passengers/yr0.1M
Elevation21 ft / 6 m

Frequently Asked Questions

Common questions about DEN to BFI flights.
Nonstop flights from Denver International Airport to King County International Airport - Boeing Field take about 2h 16m gate to gate. The route covers 1,024 miles.
3 airlines operated the nonstop from DEN to BFI: Air Canada, Delta Air Lines and United Airlines. The last scheduled nonstop was in July 2026. There's no nonstop right now, so today you'd fly it with one stop. See the connection options above, ranked by layover.
Not right now. The last scheduled nonstop was in July 2026. You can still fly it with one stop, and the connecting options above are sorted by layover. Nonstop, the hop took about 2h 16m.
Yes, 1-stop connections are available, ranked by layover time.
Seattle is 1 hour behind Denver.
Yes, return flights from BFI to DEN are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include BJC, COS and EGE. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from DEN to BFI

Denver International Airport (DEN) and King County International Airport - Boeing Field (BFI) had nonstop service from Air Canada, Delta Air Lines and United Airlines, last on the schedule in July 2026. The nonstop is dormant right now, so the way to fly it today is one connection, and the options above are sorted by layover.

DEN to BFI Flight Duration and Schedule

Nonstop flight time from DEN to BFI is about 2 hours 16 minutes gate to gate. The route covers a distance of 1,024 miles (1,648 km).

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 Eagle (EGE).