Salt Lake City to Seattle (SLC–BFI) — Airlines, Schedules & Connections

SLC Airport Page →
691 mi airlines charter/private 3/wk
On-time Some delays Frequent delays
Flight Schedule 2 flights Verified 22m ago
Also flown by charter / private operators.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
UA3805
UA United
738
3:00 PM
MDT
4:00 PM
PDT
2h
M T W T F S S
Prices
UA3805
UA United
738
4:45 PM
PDT
7:40 PM
MDT
1h 55m
M T W T F S S
Prices

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 10 hubs
LAX Los Angeles 6h 3m ACAFAM UA Los Angeles (LAX) to Seattle flights
LGB Long Beach 8h 49m AFAMDL UA Long Beach (LGB) to Seattle flights
SBA Santa Barbara 9h 6m DL UA Santa Barbara (SBA) to Seattle flights
YEG Edmonton ~4h 27m WS Edmonton (YEG) to Seattle flights
SAN San Diego ~5h 34m AFAMAS San Diego (SAN) to Seattle flights
BUR Burbank ~5h 49m AMDLKE Burbank (BUR) to Seattle flights
MCI Kansas City ~7h 46m AFDLKE Kansas City (MCI) to Seattle flights
HOU Houston ~8h 46m WN DL Houston (HOU) to Seattle flights
ATL Atlanta ~10h 37m AFAMDL Atlanta (ATL) to Seattle flights
RDU Raleigh/Durham ~10h 43m DL Raleigh/Durham (RDU) to Seattle flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Salt Lake City to Seattle
3 carriers, 3 flights/week nonstop.
3 Airlines 691 mi 1h 51m nonstop -1h behind

SLC–BFI is served by 3 airlines with nonstop service. United Airlines, Air Canada and Delta Air Lines lead the route. The flight covers 691 miles in approximately 1h 51m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop SLC–BFI service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines 1 738 2h 84% Star Alliance
AC Air Canada 0 84% Star Alliance
DL Delta Air Lines 0 84% SkyTeam
Aircraft on this route
738 Boeing 737-800 – UA
Alliance coverage
Star Alliance: AC + UA (1 flights/wk, 100%)
SkyTeam: DL (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SLC to BFI direction.
Mon
0
flights
Tue
1
flight
Wed
0
flights
Thu
0
flights
Fri
0
flights
Sat
0
flights
Sun
0
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
3
Outbound / wk
1
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SLC to BFI.
1-STOP
One-Stop Connections
14
Hubs
~4h
Fastest
~12h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
83
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
SLC → BFI
84%
Generally reliable. Most flights run on time.
Departing
84%
Return
BFI → SLC
100%
Generally reliable. Most flights run on time.
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SLC delays →

Other ways to reach Seattle from Salt Lake City

Nearby airports with service to King County International Airport - Boeing Field.
Metric SLC→BFI IDA→BFI
Distance from SLC 188 mi
Nonstop airlines 3 1
Weekly flights 3
Flight time 1h 51m 1h 44m
Departure OTP 84%
Airports within 200 miles of SLC with service to King County International Airport - Boeing Field.

Travel Essentials

Practical planning for this route.
Time Difference
-1h
Seattle is 1 hour behind Salt Lake City.
SLC: MDT · BFI: PDT

When it's 6:00 PM in Salt Lake City, it's 5:00 PM in Seattle.
Distance & Flight Time
691 mi / 1,111 km
Nonstop flight time is approximately 1h 51m gate to gate.
Getting to SLC

TRAX light rail Green Line runs from downtown Salt Lake City (Intermodal Hub / Temple Square) to the airport in 18 minutes ($2.50). Trains run every 15 minutes from 5am to 11pm daily. The airport station is inside the terminal building.Ride-shares from downtown cost $15–25 and take 10–20 minutes. I-80 connects directly to the airport from the east. The airport opened a new terminal in 2020; it is one facility now, replacing the old dual-terminal setup. Ski resort shuttles depart from Ground Transportation for Park City, Deer Valley, and Alta/Snowbird (60–90 min).

SLC–BFI Quick Facts

Key statistics for the Salt Lake City to Seattle route.
Route details
Distance691 mi / 1,111 km
Flight time1h 51m
Time difference-1 hour
Airlines (nonstop)3
Weekly flights3 out / 1 return
1-stop connectionsAvailable
Origin: SLC
IATA / ICAOSLC / KSLC
TimezoneAmerica/Denver
Passengers/yr27.1M
Elevation4,227 ft / 1,288 m
Destination: BFI
IATA / ICAOBFI / KBFI
TimezoneAmerica/Los_Angeles
Passengers/yr0.1M
Elevation21 ft / 6 m

Frequently Asked Questions

Common questions about SLC to BFI flights.
Nonstop flights from Salt Lake City International Airport to King County International Airport - Boeing Field take about 1h 51m gate to gate. The route covers 691 miles.
3 airlines operate flights from SLC to BFI: United Airlines, Air Canada and Delta Air Lines.
This route has limited weekly service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Los Angeles, Long Beach and Santa Barbara Municipal.
Seattle is 1 hour behind Salt Lake City.
Yes, return flights from BFI to SLC are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include IDA. 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 SLC to BFI

Salt Lake City International Airport (SLC) and King County International Airport - Boeing Field (BFI) are connected by nonstop service from United Airlines, Air Canada and Delta Air Lines. With 3 weekly departures, this is a regularly served route.

SLC to BFI Flight Duration and Schedule

Nonstop flight time from SLC to BFI is about 1 hours 51 minutes gate to gate. The route covers a distance of 691 miles (1,111 km). There are approximately 3 weekly flights outbound and 1 return, totaling 4 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Los Angeles, Long Beach and Santa Barbara Municipal. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Idaho Falls (IDA).