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

SLC Airport Page →
691 mi airlines 6/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 8h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Salt Lake City to Seattle
Connecting service available through multiple hubs.
6 Flights/wk 691 mi 0h 33m nonstop 54 1-stop hubs

While no nonstop service exists between SLC and BFI, connecting options are available through 54 hubs.

Also explore SLC Routes BFI Routes SLC Live Flights BFI Live Flights SLC Delays
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SLC to BFI.
1-STOP
One-Stop Connections
54
Hubs
~3h
Fastest
~30h
Longest
BZN ~3h 11m EGE ~3h 26m OAK ~3h 53m GEG ~4h 3m VNY ~4h 4m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
423
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.
Reliability

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
70%
Moderate delays possible. Allow buffer time.
Arriving
70%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SLC delays →
Alternatives

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 0 1
Weekly flights 6 –
Flight time 0h 33m 1h 44m
Departure OTP 84% –
Idaho Falls (IDA) to Seattle flights
Airports within 200 miles of SLC with service to King County International Airport - Boeing Field.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Seattle is 0 hours the same as Salt Lake City.
SLC: MDT · BFI: MDT

When it's 6:00 PM in Salt Lake City, it's 6:00 PM in Seattle.
Distance & Flight Time
691 mi / 1,111 km
Nonstop flight time is approximately 0h 33m to 1h 0m.
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).

Facts

SLC–BFI Quick Facts

Key statistics for the Salt Lake City to Seattle route.
Route details
Distance691 mi / 1,111 km
Flight time0h 33m to 1h
Time difference0 hours
Airlines (nonstop)0
Weekly flights6 out / 3 return
1-stop connections54 hubs
Origin: SLC
Full nameSalt Lake City International Airport
IATA / ICAOSLC / KSLC
TimezoneAmerica/Boise
Passengers/yr27.1M
Elevation4,227 ft / 1,288 m
Destination: BFI
Full nameKing County International Airport - Boeing Field
IATA / ICAOBFI / KBFI
TimezoneAmerica/Boise
Passengers/yr0.1M
Elevation21 ft / 6 m
FAQ

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 approximately 0h 33m to 1h. The route covers 691 miles.
There are approximately 6 nonstop flights per week from SLC to BFI. The return direction has about 3 weekly flights.
Yes, 1-stop connections are available through BZN, EGE, OAK, GEG, VNY, PDX, SJC, YEG, LAS, IDA, STS, YLW, SCF, SNA, RNO, SFO, PHX, PSP, SAN, SMF, LAX, TUS, AZA, DEN, DAL, TRM, BUR, AUS, DFW, OMA, IND, OKC, SDF, IAH, STL, ORD, CMH, BNA, MSP, DCA, BWI, YYZ, IAD, RSW, EWR, CLT, ATL, TPA, RDU, KOA, YVR, YYC, HND and FLL. These options provide additional schedule flexibility.
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 through multiple connecting hub airports.

SLC to BFI Flight Duration and Schedule

Nonstop flight time from SLC to BFI ranges from 0 hours 33 minutes to 1 hours 0 minutes. The route covers a distance of 691 miles (1,111 km). There are approximately 6 weekly flights outbound and 3 return, totaling 9 flights per week in both directions.

Connecting Options and Alternatives

54 one-stop connections are available, with the fastest taking approximately 3 hours via BZN. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Idaho Falls (IDA).