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Flights from Ontario to London – Airlines & connecting routes

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ONT to LHR flights and routes map ONT to LHR – All flight route options from Ontario International Airport, California, USA to Heathrow, United Kingdom. These flights are operated by 11 different airlines through 17 different connections. The shortest flight time is 13 hours and 20 minutes. See the full flight schedule and time table, including departure times, airlines and stopover details to find the best option for you.

From
To
USA ONT Ontario Airport Ontario, CA, USA
United Kingdom LHR Heathrow, United Kingdom
ONT
Ontario Airport
USAOntario, CA, USA
Heathrow
United KingdomLondon, United Kingdom
LHR
No direct flights found
31 routes with 1 stop found »
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1 stop route options with the same airline:

Duration

Via Denver DEN
1 stop with United Airlines. 1-2 flights per day.

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12h 40m

Via Denver DEN
1 stop with United Airlines.
12h 40m
1-2 flights per day.
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Via Salt Lake City SLC
1 stop with Delta Air Lines. 0-2 flights per day.

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13h 00m

Via Salt Lake City SLC
1 stop with Delta Air Lines.
13h 00m
0-2 flights per day.
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Via San Francisco SFO
1 stop with United Airlines. 1-2 flights per day.

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13h 06m

Via San Francisco SFO
1 stop with United Airlines.
13h 06m
1-2 flights per day.
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Via New York JFK
1 stop with JetBlue Airways.

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13h 49m

Via New York JFK
1 stop with JetBlue Airways.
13h 49m
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Via Phoenix PHX
1 stop with American Airlines. 2 flights per day.

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13h 50m

Via Phoenix PHX
1 stop with American Airlines.
13h 50m
2 flights per day.
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Via Dallas DFW
1 stop with American Airlines. 5 flights per day.

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15h 13m

Via Dallas DFW
1 stop with American Airlines.
15h 13m
5 flights per day.
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Via Chicago ORD
1 stop with United Airlines.

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15h 20m

Via Chicago ORD
1 stop with United Airlines.
15h 20m
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Via Atlanta ATL
1 stop with Delta Air Lines. 2 flights per day.

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15h 30m

Via Atlanta ATL
1 stop with Delta Air Lines.
15h 30m
2 flights per day.
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Via Seattle SEA
1 stop with Delta Air Lines. 0-1 flights per day.

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15h 50m

Via Seattle SEA
1 stop with Delta Air Lines.
15h 50m
0-1 flights per day.
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Via Charlotte CLT
1 stop with American Airlines.
Begins in 3/12

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16h 48m

Begins in 3/12
Via Charlotte CLT
1 stop with American Airlines.
16h 48m
Begins in 3/12
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Via New York EWR
1 stop with United Airlines.
Begins in 19/8

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18h 20m

Begins in 19/8
Via New York EWR
1 stop with United Airlines.
18h 20m
Begins in 19/8
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Via Houston IAH
1 stop with United Airlines.
Begins in 26/10

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18h 30m

Begins in 26/10
Via Houston IAH
1 stop with United Airlines.
18h 30m
Begins in 26/10
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Via New York LGA
1 stop with United Airlines.
Begins in 1/8

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18h 45m

Begins in 1/8
Via New York LGA
1 stop with United Airlines.
18h 45m
Begins in 1/8
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Via Washington DCA
1 stop with United Airlines.

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19h 40m

Via Washington DCA
1 stop with United Airlines.
19h 40m
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1 stop route options with codeshare or different airlines:

Duration

Via Denver DEN With United Airlines & American Airlines
Begins in 19/8
CODESHARE

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13h 20m

Begins in 19/8
Via Denver DEN
13h 20m
With United Airlines & American Airlines
Begins in 19/8
CODESHARE
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Via San Francisco SFO With United Airlines & American Airlines 1-2 flights per day.
CODESHARE

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13h 41m

Via San Francisco SFO
13h 41m
With United Airlines & American Airlines 1-2 flights per day.
CODESHARE
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Via Phoenix PHX With American Airlines & Finnair 2 flights per day.
CODESHARE

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13h 50m

Via Phoenix PHX
13h 50m
With American Airlines & Finnair 2 flights per day.
CODESHARE
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Via New York JFK With JetBlue Airways & American Airlines 1-2 flights per day.

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14h 44m

Via New York JFK
14h 44m
With JetBlue Airways & American Airlines 1-2 flights per day.
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Via Dallas DFW With American Airlines & Finnair 5 flights per day.
CODESHARE

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15h 13m

Via Dallas DFW
15h 13m
With American Airlines & Finnair 5 flights per day.
CODESHARE
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Via Atlanta ATL 1 stop with Air France. 1-3 flights per day.
CODESHARE

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15h 30m

Via Atlanta ATL
15h 30m
1 stop with Air France. 1-3 flights per day.
CODESHARE
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Via Chicago ORD With United Airlines & American Airlines
CODESHARE

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15h 50m

Via Chicago ORD
15h 50m
With United Airlines & American Airlines
CODESHARE
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Via Salt Lake City SLC 1 stop with Air France. 0-1 flights per day.
CODESHARE

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16h 00m

Via Salt Lake City SLC
16h 00m
1 stop with Air France. 0-1 flights per day.
CODESHARE
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Via Austin AUS With United Airlines & American Airlines 0-2 flights per day.
CODESHARE

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16h 01m

Via Austin AUS
16h 01m
With United Airlines & American Airlines 0-2 flights per day.
CODESHARE
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Via Houston IAH With United Airlines & American Airlines 2 flights per day.
CODESHARE

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16h 40m

Via Houston IAH
16h 40m
With United Airlines & American Airlines 2 flights per day.
CODESHARE
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Via Charlotte CLT With American Airlines & Finnair
Begins in 3/12
CODESHARE

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16h 48m

Begins in 3/12
Via Charlotte CLT
16h 48m
With American Airlines & Finnair
Begins in 3/12
CODESHARE
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Via Seattle SEA With Alaska Airlines & American Airlines 2-3 flights per day.
CODESHARE

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16h 50m

Via Seattle SEA
16h 50m
With Alaska Airlines & American Airlines 2-3 flights per day.
CODESHARE
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Via Boston BOS With United Airlines & American Airlines
Begins in 19/8

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17h 50m

Begins in 19/8
Via Boston BOS
17h 50m
With United Airlines & American Airlines
Begins in 19/8
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Via New York EWR With United Airlines & American Airlines
Begins in 19/8
CODESHARE

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18h 30m

Begins in 19/8
Via New York EWR
18h 30m
With United Airlines & American Airlines
Begins in 19/8
CODESHARE
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Via New York LGA With United Airlines & American Airlines
Begins in 1/8

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18h 30m

Begins in 1/8
Via New York LGA
18h 30m
With United Airlines & American Airlines
Begins in 1/8
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Via Washington DCA With United Airlines & American Airlines
CODESHARE

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20h 05m

Via Washington DCA
20h 05m
With United Airlines & American Airlines
CODESHARE
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Via Miami MIA With United Airlines & American Airlines
Begins in 1/8

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20h 55m

Begins in 1/8
Via Miami MIA
20h 55m
With United Airlines & American Airlines
Begins in 1/8
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Ontario to London flights

There are over 17 airlines and as many as 1354 flights every week to this destination. While flying to London from Ontario you will be doing a stopover in Denver, San Francisco or any other of the 17 alternatives with flight connections.

Are there any non-stop flights from ONT to LHR?

There are no direct or non-stop flights from Ontario International Airport, ONT to Heathrow, LHR.

Tip! You might want to consider arriving at Gatwick (LGW) instead.

Ontario to London with United Airlines

United Airlines is a Star Alliance member.

Distance & flight times: Ontario International Airport to Heathrow

The shortest flight time between ONT and LHR is 13 hours and 20 minutes.

ViaTotal flight timeLayover timeDistance
DEN Denver13h 20m2h 16m5506 miles (8859 km)
SFO San Francisco13h 41m3h 26m5747 miles (9247 km)
PHX Phoenix13h 50m2h 30m5614 miles (9033 km)
JFK New York14h 44m3h 57m5899 miles (9491 km)
DFW Dallas15h 13m1h 53m5958 miles (9586 km)
ATL Atlanta15h 30m2h 41m6130 miles (9863 km)
ORD Chicago15h 50m3h 55m5670 miles (9123 km)
SLC Salt Lake City16h 0m4h 38m5441 miles (8755 km)
AUS Austin16h 1m1h 25m6132 miles (9866 km)
IAH Houston16h 40m4h 20m6189 miles (9958 km)
CLT Charlotte16h 48m4h 30m6090 miles (9799 km)
SEA Seattle16h 50m4h 53m5774 miles (9290 km)
BOS Boston17h 50m4h 42m5849 miles (9411 km)
EWR New York18h 30m3h 51m5907 miles (9504 km)
LGA New York18h 30m--
DCA Washington20h 5m--
MIA Miami20h 55m2h 10m6747 miles (10856 km)
The flight times and layover times in the table above are approximate and may vary depending on flight number, aircraft, airline, weather, and time of day.ONT-LHR flight routesOntario to London flight routes illustrated on a map.
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Ontario - London route map and flight paths
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From Ontario to United Kingdom

Below is a list of other destinations to United Kingdom from Ontario International Airport with either direct flights or 1 stop connections.

From USA to London

Below is a list of other cities in USA with flights to London with either non-stop or connecting flights.

The fastest way to fly from Ontario (ONT) to London (LHR) is via Denver and it will take about 13 hours and 20 minutes. The second fastest route is via San Francisco and will take 13 hours and 41 minutes.

You can fly with United Airlines, American Airlines, JetBlue Airways, Air France or Alaska Airlines from Ontario to London.

The flight time between Ontario Airport (ONT) and Heathrow (LHR) via Denver International, DEN is 13 hours and 20 minutes.

No. But you can still purchase a 1 stop flight via Denver, San Francisco or any other route to London (LHR).

A codeshare agreement means that cooperating airlines are able to sell seats on each other’s flights. This means that you are able to travel to more destinations than your airline of choice normally offers. Codeshare flights are also beneficial because of the seamless transits you can get with connecting flights from the same airline. The downside of choosing a codeshare flight can be that you in some cases can’t upgrade codeshare flights or use elite benefits.

A connecting or transit flight means that you reach your final destination through two or more flights – in other words a non-direct flight. You will change to a new aircraft after your first flight, this may include moving to another terminal at the airport aswell. The time required to transfer passengers and luggage between flights is called Minimum Connecting Time (MCT) and are always taken into account here on Flightroutes.com.

If you bought your whole flight on a single ticket, the airline will book you on the next available connecting flight.

With connecting flights, checked in luggage is most commonly forwarded to your final destination when buying a single ticket for both flights.

If you miss your connecting flight due to circumstances outside your control such as your first flight being delayed, you should turn to your airline who will provide you with a seat on the next available flight. This is usually done free of charge, and only applies if you purchased your trip as one ticket. If the next connecting flight is the following day, the airline usually provides accommodation and meals.
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