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

SLC Airport Page →
691 mi airlines 2/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 77 1-stop flights Verified 23m ago
Nonstop 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 nonstop flights on this route. connecting options below.

1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Salt Lake City to Seattle
2 carriers, 2 flights/week nonstop.
2 Airlines 2 Flights/wk 691 mi 1h 22m nonstop -1h behind 77 1-stop hubs

SLC–BFI is served by 2 airlines with nonstop service. Air Canada and Delta Air Lines lead the route. The flight covers 691 miles in approximately 1h 22m. Beyond nonstop, 77 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop SLC–BFI service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AC Air Canada 0 100% Star Alliance
DL Delta Air Lines 0 100% SkyTeam
Alliance coverage
Star Alliance: AC (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

Beyond nonstop. 1-stop and 2-stop options for SLC to BFI.
1-STOP
One-Stop Connections
77
Hubs
~3h
Fastest
~29h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
509
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.

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 2 1
Weekly flights 2
Flight time 1h 22m 1h 44m
Departure OTP 100%
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 22m to 1h 28m.
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 22m to 1h 28m
Time difference-1 hour
Airlines (nonstop)2
Weekly flights2 out / 1 return
1-stop connections77 hubs
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 approximately 1h 22m to 1h 28m. The route covers 691 miles.
2 airlines operate nonstop service: Air Canada and Delta Air Lines.
There are approximately 2 nonstop flights per week from SLC to BFI. The return direction has about 1 weekly flights.
Yes, 1-stop connections are available through BZN, EGE, GEG, YYJ, PDX, SEA, STS, YEG, IDA, YVR, RNO, SCF, SAN, BOI, VNY, LAS, APA, OAK, YYC, FNL, LGB, AZA, SNA, TRM, PSP, BUR, PHX, LAX, DEN, OMA, ELP, MSP, OKC, IAH, IND, MCI, TUS, ABQ, STL, LBB, SDF, YYZ, DAL, AUS, PNS, ORD, DFW, CMH, HOU, ATL, CHS, ANC, CLT, BWI, BNA, DCA, PIT, RDU, EWR, LGA, IAD, TPA, PBI, BOS, MCO, FLL, RSW, MDW, MIA, HNL, KOA, SFO, SMF, SJC, YLW, SEZ and HND. These options provide additional schedule flexibility.
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 Air Canada and Delta Air Lines. With 2 weekly departures, this is a regularly served route.

SLC to BFI Flight Duration and Schedule

Nonstop flight time from SLC to BFI ranges from 1 hours 22 minutes to 1 hours 28 minutes. The route covers a distance of 691 miles (1,111 km). There are approximately 2 weekly flights outbound and 1 return, totaling 3 flights per week in both directions.

Connecting Options and Alternatives

77 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).