Toronto to Seattle (YYZ–BFI) — Airlines, Schedules & Connections

YYZ Airport Page →
2,054 mi airlines 1/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 1w ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  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...
Toronto to Seattle
Connecting service available through multiple hubs.
1 Flights/wk 2,054 mi 5h 5m nonstop -2h behind 43 1-stop hubs

While no nonstop service exists between YYZ and BFI, connecting options are available through 43 hubs.

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

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for YYZ to BFI.
1-STOP
One-Stop Connections
43
Hubs
~5h
Fastest
~33h
Longest
BZN ~5h 4m EGE ~5h 33m SLC ~5h 51m SDF ~6h 11m YEG ~6h 16m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
395
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
YYZ → BFI
52%
Frequent delays expected. Consider flexible booking.
Departing
52%
Return
BFI → YYZ
56%
Frequent delays expected. Consider flexible booking.
Arriving
56%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. YYZ delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-2h
Seattle is 2 hours behind Toronto.
YYZ: EDT · BFI: MDT

When it's 6:00 PM in Toronto, it's 4:00 PM in Seattle.
Distance & Flight Time
2,054 mi / 3,305 km
Nonstop flight time is approximately 5h 5m.
Visa & Entry

Canadian citizens do not need a visa or ESTA to enter the United States for tourism or business stays up to 6 months. A valid Canadian passport is required for air travel. Land and sea crossings also accept a NEXUS card, enhanced driver's license, or FAST card. At the border, officers determine the length of stay and may ask for proof of ties to Canada and a return plan.

Verify entry requirements with official sources before travel.
Getting to YYZ

The UP Express train runs from Union Station (downtown Toronto) to Terminal 1 in 25 minutes (CAD $12.35). Trains depart every 15 minutes during peak hours, every 30 minutes off-peak and overnight. Highway 427 and the 401 are heavily congested during rush hours.

Taxis and ride-hail from downtown cost CAD $50–70 and take 25–60 minutes depending on traffic. MiWay and Brampton Transit buses serve the airport from the western suburbs. Long-term parking is available in the Viscount Road lots with free shuttle service.

Facts

YYZ–BFI Quick Facts

Key statistics for the Toronto to Seattle route.
Route details
Distance2,054 mi / 3,305 km
Flight time5h 5m
Time difference-2 hours
Airlines (nonstop)0
Weekly flights1 out / 1 return
1-stop connections43 hubs
Origin: YYZ
Full nameToronto Pearson International Airport
IATA / ICAOYYZ / CYYZ
TimezoneAmerica/Toronto
Passengers/yr46.8M
Elevation569 ft / 173 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 YYZ to BFI flights.
Nonstop flights from Toronto Pearson International Airport to King County International Airport - Boeing Field take approximately 5h 5m. The route covers 2,054 miles.
There are approximately 1 nonstop flights per week from YYZ to BFI. The return direction has about 1 weekly flights.
Yes, 1-stop connections are available through BZN, EGE, SLC, SDF, YEG, IND, STL, CMH, OMA, DAL, VNY, SCF, ORD, SJC, YLW, DCA, EWR, IAD, LAS, DFW, PHX, SAN, PSP, BNA, AUS, SFO, TUS, CLT, LAX, IAH, MSP, ATL, RSW, RDU, ANC, TPA, GCM, DEN, FLL, YYC, MNL, YVR and HND. These options provide additional schedule flexibility.
Seattle is 2 hours behind Toronto.
Yes, return flights from BFI to YYZ are available. Use the direction toggle at the top to view the return schedule.
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 YYZ to BFI

Toronto Pearson International Airport (YYZ) and King County International Airport - Boeing Field (BFI) are connected through multiple connecting hub airports.

YYZ to BFI Flight Duration and Schedule

Nonstop flight time from YYZ to BFI ranges from 5 hours 5 minutes. The route covers a distance of 2,054 miles (3,305 km). There are approximately 1 weekly flights outbound and 1 return, totaling 2 flights per week in both directions.

Connecting Options and Alternatives

43 one-stop connections are available, with the fastest taking approximately 5 hours via BZN. Two-stop connections are also available via intermediate hubs.