Cheap Flights from Ontario to London
Cheap Flights from Ontario to London
Looking for cheap flights from Ontario to London? PointsYeah scans award availability across major airline and bank transfer programs in one place, so travelers can compare the lowest points and cash routes faster. Instead of searching each airline separately, users can see pricing from programs like Chase, Amex, Capital One, Citi, and Bilt side by side.
Award prices from Ontario to London vary by season, cabin, and date, but available award flights can start around 50,000–80,000 points one way, with premium cabins available at higher mileage levels. The live search above allows filtering by cabin, airline, stops, or maximum points to find the best award flights from Ontario to London for specific travel dates.
2026-12-12
ONT - LHR
Premium Economy | 1 Stop
From 50,000 Pts + $5.6
2026-12-12
ONT - LHR
Premium Economy | 1 Stop
From 50,000 Pts + $5.6
2026-12-12
ONT - LHR
Premium Economy | 1 Stop
From 50,000 Pts + $5.6
2026-12-24
ONT - LHR
Premium Economy | 2 Stops | 2 left
From 68,781 Pts + $83.8
2026-11-24
ONT - LHR
Business | 2 Stops | 9+ left
From 80,000 Pts + $5.6
2026-11-24
ONT - LHR
Business | 2 Stops | 9+ left
From 80,000 Pts + $5.6
Ontario to London flight facts
Distance
5,416 mi
8,716 km in a straight line
Estimated flight time
about 11h 15m
In the air, for the straight-line distance
Time difference
+8h
London is 8 hours ahead of Ontario.
Airports in Ontario
ONT · Ontario Intl
Airports in London
LCY · London City
LGW · London Gatwick
LHR · London Heathrow
LTN · London Luton
STN · London Stansted
Nearby airport alternatives
Flights Santa Ana - London · Santa Ana is 30 mi from Ontario
Flights Burbank - London · Burbank is 44 mi from Ontario
Flights Los Angeles - London · Los Angeles is 47 mi from Ontario
Flights San Diego - London · San Diego is 94 mi from Ontario
Flights Santa Barbara - London · Santa Barbara is 130 mi from Ontario
Flights Ontario - Manchester · Manchester is 152 mi from London
Premium cabin flights from Ontario to London
Premium cabin
2026-11-24
ONT - LHR
Business | 2 Stops | 9+ left
From 88,000 Pts + $5.6
Premium cabin
2026-11-24
ONT - LHR
Business | 2 Stops | 9+ left
From 88,000 Pts + $5.6
Premium cabin
2026-12-07
ONT - LHR
Business | 2 Stops | 3 left
From 88,000 Pts + $29.3
Premium cabin
2026-12-07
ONT - LCY
Business | 2 Stops | 3 left
From 88,000 Pts + $30.6
Premium cabin
2026-11-24
ONT - LHR
Business | 2 Stops | 9+ left
From 88,000 Pts + $49.3
Premium cabin
2026-11-24
ONT - LHR
Business | 2 Stops | 9+ left
From 88,000 Pts + $49.3
Selected hotels for your next stay
London (United Kingdom)
Hyatt Regency London Stratford
From 8,000 Pts or $172
London (United Kingdom)
Hyatt Regency London Blackfriars
From 20,000 Pts or $265
Newbury (United Kingdom)
The Retreat at Elcot Park, an SLH Hotel
From 55,000 Pts or $282
Frequently Asked Questions
The cheapest route from Ontario to London depends on award space, transfer bonuses, and travel dates. PointsYeah compares bank and airline programs in one place so you can find the best points and cash combinations faster.
Yes. Transferable points from Chase, Amex, Capital One, Citi, and Bilt can often be moved to airline partners for flights from Ontario to London.
Yes. Searching metro codes when available helps compare nearby airport combinations for flights from Ontario to London.
Ontario and London are about 5,416 miles (8,716 km) apart in a straight line.
Flying the 5,416-mile straight-line distance takes about 11h 15m in the air, estimated from typical cruising speed. Actual travel time depends on the routing; itineraries with connections take longer.
London is 8 hours ahead of Ontario.
Departures from Ontario: Ontario Intl (ONT). Arrivals in London: London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Stansted (STN).
Travelers searching this route also look at other popular routes into London, plus the return trip when we track it. Fares and award space change daily.
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points travel planning experience. Yeah!
