🇨🇦

San Francisco → London

Save up to $1,483 (33%) by splitting via Toronto. Business class · 7 options found.

Direct flight — baseline
$4,540
Best Deal
🇨🇦 TorontoCN Tower, Distillery District & poutine
$3,057
Save $1,483 (33%) vs direct
SFO → YYZAmerican Airlines$1,095
YYZ → LHRSATA International$1,963
🏨 1 night at Fairmont Royal York from $260 · Still save $1,223 after hotel
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🇺🇸 Los AngelesVenice Beach, Griffith & tacos
$3,484
Save $1,056 (23%) vs direct
SFO → LAXFrontier Airlines$358
LAX → LHRAvianca$3,126
🏨 1 night at Shutters on the Beach from $350 · Still save $706 after hotel
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🇫🇷 ParisLouvre, Montmartre & Le Marais
$3,834
Save $706 (16%) vs direct
SFO → CDGAlaska Airlines$3,310
CDG → LHRBritish Airways$525
🏨 1 night at Hotel Lutetia from $380 · Still save $326 after hotel
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🌍 DENExplore the city
$3,932
Save $609 (13%) vs direct
SFO → DENFrontier Airlines$461
DEN → LHRIcelandair$3,471
🏨 1 night at City Hotel from $200 · Still save $409 after hotel
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🇺🇸 BostonFreedom Trail, Harvard & North End
$3,995
Save $545 (12%) vs direct
SFO → BOSAmerican Airlines$1,201
BOS → LHRSATA International$2,795
🏨 1 night at XV Beacon from $320 · Still save $225 after hotel
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🌍 ORDExplore the city
$4,096
Save $444 (10%) vs direct
SFO → ORDFrontier Airlines$460
ORD → LHRIcelandair$3,636
🏨 1 night at City Hotel from $200 · Still save $244 after hotel
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🌍 SEAExplore the city
$4,460
Save $80 (2%) vs direct
SFO → SEAFrontier Airlines$418
SEA → LHRIcelandair$4,043
🏨 1 night at City Hotel from $200 · Total with hotel: $4,660
Book flights ↗Book hotel ↗

⚠️ Split Ticket Risks

These are two separate bookings. If your first flight is delayed, the second airline has no obligation to rebook you. We recommend carry-on only, overnight stopovers, and travel insurance.

Prices sourced from Google Flights on 2026-04-09. Always verify before booking.