A range of rugged mountains with snow-capped peaks under a clear sky.

Flights from London (LON-All Airports) to Ontario Intl. Airport (ONT)
Flights to Los Angeles
California
United States of America
Flights
Expedia.co.uk

Popular airlines from London to Ontario Intl. Airport (ONT)

British Airways
Alaska Airlines
Iberia
Air Canada
United
KLM
Air France

Be in the know
Get alerts if flight prices drop or rise*
Book smarter
Save up to 25% on select hotels after you book a flight*
Earn twice
Earn your airline miles on top of our rewards
Sign in

Cheap Flights from London to Ontario (LON-ONT)

Prices were available within the past 7 days and start at £355 for one-way flights and £407 for return, for the period specified. Prices and availability are subject to change.

All deals

One way

Return

Wed, 4 Nov - Sun, 8 Nov

LHR

London

ONT

Ontario

£407

Return

Found 5 days ago

Select Lufthansa flight, departing Wed, 4 Nov from London to Ontario, returning Sun, 8 Nov, priced at £407 Found 5 days ago

Fri, 9 Oct - Mon, 12 Oct

LHR

London

ONT

Ontario

£407

Return

Found 3 days ago

Select United flight, departing Fri, 9 Oct from London to Ontario, returning Mon, 12 Oct, priced at £407 Found 3 days ago

Mon, 9 Nov - Tue, 9 Feb

LHR

London

ONT

Ontario

£416

Return

Found 5 days ago

Select Air France flight, departing Mon, 9 Nov from London to Ontario, returning Tue, 9 Feb, priced at £416 Found 5 days ago

Wed, 14 Oct - Wed, 21 Oct

LHR

London

ONT

Ontario

£416

Return

Found 4 days ago

Select Virgin Atlantic flight, departing Wed, 14 Oct from London to Ontario, returning Wed, 21 Oct, priced at £416 Found 4 days ago

Wed, 16 Dec - Wed, 6 Jan

LHR

London

ONT

Ontario

£429

Return

Found 16 hours ago

Select Alaska Airlines flight, departing Wed, 16 Dec from London to Ontario, returning Wed, 6 Jan, priced at £429 Found 16 hours ago

Tue, 20 Oct - Mon, 8 Feb

LHR

London

ONT

Ontario

£434

Return

Found 3 days ago

Select KLM flight, departing Tue, 20 Oct from London to Ontario, returning Mon, 8 Feb, priced at £434 Found 3 days ago

Wed, 4 Nov - Wed, 11 Nov

LHR

London

ONT

Ontario

£456

Return

Found 15 hours ago

Select Delta flight, departing Wed, 4 Nov from London to Ontario, returning Wed, 11 Nov, priced at £456 Found 15 hours ago

Tue, 6 Apr - Tue, 13 Apr

LGW

London

ONT

Ontario

£457

Return

Found 2 days ago

Select Air France flight, departing Tue, 6 Apr from London to Ontario, returning Tue, 13 Apr, priced at £457 Found 2 days ago

Tue, 20 Oct - Thu, 29 Oct

LCY

London

ONT

Ontario

£472

Return

Found 3 days ago

Select KLM flight, departing Tue, 20 Oct from London to Ontario, returning Thu, 29 Oct, priced at £472 Found 3 days ago

Tue, 24 Nov - Tue, 1 Dec

LHR

London

ONT

Ontario

£477

Return

Found 3 days ago

Select British Airways flight, departing Tue, 24 Nov from London to Ontario, returning Tue, 1 Dec, priced at £477 Found 3 days ago

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Average driving time to city centre is 42 minutes. Flights from £909

SNA

John Wayne

42 min

Flights from £909

Travel information

Origin airport	London
Destination airport	Ontario Intl. Airport
Distance	5,431 miles away
Return price	£407

Explore a world of travel with Expedia

Flights

Flights from Anaa (AAA) to Los Angeles (QLA)
Standard Link for Flights from Anaa (AAA) to Los Angeles (QLA)
Flights from Auckland (AKL) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Auckland (AKL) to Ontario Intl. Airport (ONT)
Flights from Almaty (ALA) to Los Angeles (QLA)
Standard Link for Flights from Almaty (ALA) to Los Angeles (QLA)
Flights from Alicante (ALC) to Los Angeles (QLA)
Standard Link for Flights from Alicante (ALC) to Los Angeles (QLA)
Flights from Austin (AUS) to Orange County (SNA)
Standard Link for Flights from Austin (AUS) to Orange County (SNA)
Flights from Belfast (BFS) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Belfast (BFS) to Ontario Intl. Airport (ONT)
Flights from Birmingham (BHM) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Birmingham (BHM) to Ontario Intl. Airport (ONT)
Flights from Boston (BOS) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Boston (BOS) to Ontario Intl. Airport (ONT)
Flights from Boston (BOS) to Orange County (SNA)
Standard Link for Flights from Boston (BOS) to Orange County (SNA)
Flights from Bristol (BRS) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Bristol (BRS) to Ontario Intl. Airport (ONT)
Flights from Bristol (BRS) to Orange County (SNA)
Standard Link for Flights from Bristol (BRS) to Orange County (SNA)
Flights from Baltimore (BWI) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Baltimore (BWI) to Ontario Intl. Airport (ONT)
Flights from Cambridge (CBG) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Cambridge (CBG) to Ontario Intl. Airport (ONT)
Flights from Cleveland (CLE) to Los Angeles (QLA)
Standard Link for Flights from Cleveland (CLE) to Los Angeles (QLA)
Flights from Charlotte (CLT) to Orange County (SNA)
Standard Link for Flights from Charlotte (CLT) to Orange County (SNA)
Flights from Colorado Springs (COS) to Orange County (SNA)
Standard Link for Flights from Colorado Springs (COS) to Orange County (SNA)
Flights from Cancun (CUN) to Los Angeles (QLA)
Standard Link for Flights from Cancun (CUN) to Los Angeles (QLA)
Flights from Cincinnati (CVG) to Orange County (SNA)
Standard Link for Flights from Cincinnati (CVG) to Orange County (SNA)
Flights from Cardiff (CWL) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Cardiff (CWL) to Ontario Intl. Airport (ONT)
Flights from Washington (DCA) to Orange County (SNA)
Standard Link for Flights from Washington (DCA) to Orange County (SNA)
Flights from Delhi (DEL) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Delhi (DEL) to Ontario Intl. Airport (ONT)
Flights from Delhi (DEL) to Los Angeles (QLA)
Standard Link for Flights from Delhi (DEL) to Los Angeles (QLA)
Flights from Dallas (DFW) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Dallas (DFW) to Ontario Intl. Airport (ONT)
Flights from Des Moines (DSM) to Orange County (SNA)
Standard Link for Flights from Des Moines (DSM) to Orange County (SNA)
Flights from Dublin (DUB) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Dublin (DUB) to Ontario Intl. Airport (ONT)
Flights from Dubai (DXB) to Orange County (SNA)
Standard Link for Flights from Dubai (DXB) to Orange County (SNA)
Flights from Edinburgh (EDI) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Edinburgh (EDI) to Ontario Intl. Airport (ONT)
Flights from East Midlands (EMA) to Ontario Intl. Airport (ONT)
Standard Link for Flights from East Midlands (EMA) to Ontario Intl. Airport (ONT)
Flights from Evanston (EVW) to Orange County (SNA)
Standard Link for Flights from Evanston (EVW) to Orange County (SNA)
Flights from Newark Liberty Intl. Airport (EWR) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Newark Liberty Intl. Airport (EWR) to Ontario Intl. Airport (ONT)
Flights from Newark Liberty Intl. Airport (EWR) to Orange County (SNA)
Standard Link for Flights from Newark Liberty Intl. Airport (EWR) to Orange County (SNA)
Flights from Fort Lauderdale (FLL) to Orange County (SNA)
Standard Link for Flights from Fort Lauderdale (FLL) to Orange County (SNA)
Flights from Spokane (GEG) to Los Angeles (QLA)
Standard Link for Flights from Spokane (GEG) to Los Angeles (QLA)
Flights from Glasgow (GGW) to Orange County (SNA)
Standard Link for Flights from Glasgow (GGW) to Orange County (SNA)
Flights from Glasgow (GLA) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Glasgow (GLA) to Ontario Intl. Airport (ONT)
Flights from New London (GON) to Orange County (SNA)
Standard Link for Flights from New London (GON) to Orange County (SNA)
Flights from Hamburg (HAM) to Los Angeles (QLA)
Standard Link for Flights from Hamburg (HAM) to Los Angeles (QLA)
Flights from Houston (HOU) to Orange County (SNA)
Standard Link for Flights from Houston (HOU) to Orange County (SNA)
Flights from Washington (IAD) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Washington (IAD) to Ontario Intl. Airport (ONT)
Flights from Washington (IAD) to Orange County (SNA)
Standard Link for Flights from Washington (IAD) to Orange County (SNA)
Flights from Indianapolis (IND) to Orange County (SNA)
Standard Link for Flights from Indianapolis (IND) to Orange County (SNA)
Flights from Jackson Hole (JAC) to Orange County (SNA)
Standard Link for Flights from Jackson Hole (JAC) to Orange County (SNA)
Flights from Jacksonville (JAX) to Orange County (SNA)
Standard Link for Flights from Jacksonville (JAX) to Orange County (SNA)
Flights from New York (JFK) to Ontario Intl. Airport (ONT)
Standard Link for Flights from New York (JFK) to Ontario Intl. Airport (ONT)
Flights from New York (JFK) to Los Angeles (QLA)
Standard Link for Flights from New York (JFK) to Los Angeles (QLA)
Flights from Las Vegas (LAS) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Las Vegas (LAS) to Ontario Intl. Airport (ONT)
Flights from Los Angeles (LAX) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Los Angeles (LAX) to Ontario Intl. Airport (ONT)
Flights from Leeds (LBA) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Leeds (LBA) to Ontario Intl. Airport (ONT)
Flights from Leeds (LBA) to Orange County (SNA)
Standard Link for Flights from Leeds (LBA) to Orange County (SNA)
Flights from London (LGW) to Ontario Intl. Airport (ONT)
Standard Link for Flights from London (LGW) to Ontario Intl. Airport (ONT)
Flights from London (LHR) to Los Angeles (LAX)
Standard Link for Flights from London (LHR) to Los Angeles (LAX)
Flights from London (LHR) to Ontario Intl. Airport (ONT)
Standard Link for Flights from London (LHR) to Ontario Intl. Airport (ONT)
Flights from Lagos (LOS) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Lagos (LOS) to Ontario Intl. Airport (ONT)
Flights from Liverpool (LPL) to Orange County (SNA)
Standard Link for Flights from Liverpool (LPL) to Orange County (SNA)
Flights from Lawrence (LWC) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Lawrence (LWC) to Ontario Intl. Airport (ONT)
Flights from Manchester (MAN) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Manchester (MAN) to Ontario Intl. Airport (ONT)
Flights from Orlando (MCO) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Orlando (MCO) to Ontario Intl. Airport (ONT)
Flights from Mexico City (MEX) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Mexico City (MEX) to Ontario Intl. Airport (ONT)
Flights from Manchester (MHT) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Manchester (MHT) to Ontario Intl. Airport (ONT)
Flights from Manchester (MHT) to Orange County (SNA)
Standard Link for Flights from Manchester (MHT) to Orange County (SNA)
Flights from Miami (MIA) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Miami (MIA) to Ontario Intl. Airport (ONT)
Flights from Miami (MIA) to Orange County (SNA)
Standard Link for Flights from Miami (MIA) to Orange County (SNA)
Flights from Kansas City (MKC) to Los Angeles (QLA)
Standard Link for Flights from Kansas City (MKC) to Los Angeles (QLA)
Flights from Manila (MNL) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Manila (MNL) to Ontario Intl. Airport (ONT)
Flights from Newcastle (NCL) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Newcastle (NCL) to Ontario Intl. Airport (ONT)
Flights from Tokyo (NRT) to Los Angeles (QLA)
Standard Link for Flights from Tokyo (NRT) to Los Angeles (QLA)
Flights from Nantes (NTE) to Los Angeles (QLA)
Standard Link for Flights from Nantes (NTE) to Los Angeles (QLA)
Flights from Norwich (NWI) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Norwich (NWI) to Ontario Intl. Airport (ONT)
Flights from Chicago (ORD) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Chicago (ORD) to Ontario Intl. Airport (ONT)
Flights from West Palm Beach (PBI) to Orange County (SNA)
Standard Link for Flights from West Palm Beach (PBI) to Orange County (SNA)
Flights from Portland (PDX) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Portland (PDX) to Ontario Intl. Airport (ONT)
Flights from Philadelphia (PHL) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Philadelphia (PHL) to Ontario Intl. Airport (ONT)
Flights from Philadelphia (PHL) to Orange County (SNA)
Standard Link for Flights from Philadelphia (PHL) to Orange County (SNA)
Flights from Pittsburgh (PIT) to Orange County (SNA)
Standard Link for Flights from Pittsburgh (PIT) to Orange County (SNA)
Flights from Prague (PRG) to Los Angeles (QLA)
Standard Link for Flights from Prague (PRG) to Los Angeles (QLA)
Flights from Palm Springs (PSP) to Orange County (SNA)
Standard Link for Flights from Palm Springs (PSP) to Orange County (SNA)
Flights from Raleigh (RDU) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Raleigh (RDU) to Ontario Intl. Airport (ONT)
Flights from Raleigh (RDU) to Los Angeles (QLA)
Standard Link for Flights from Raleigh (RDU) to Los Angeles (QLA)
Flights from Rockford (RFD) to Los Angeles (QLA)
Standard Link for Flights from Rockford (RFD) to Los Angeles (QLA)
Flights from Rio Grande (RIG) to Los Angeles (QLA)
Standard Link for Flights from Rio Grande (RIG) to Los Angeles (QLA)
Flights from Reno (RNO) to Orange County (SNA)
Standard Link for Flights from Reno (RNO) to Orange County (SNA)
Flights from Sheboygan (SBM) to Orange County (SNA)
Standard Link for Flights from Sheboygan (SBM) to Orange County (SNA)
Flights from Scottsdale (SCF) to Orange County (SNA)
Standard Link for Flights from Scottsdale (SCF) to Orange County (SNA)
Flights from Seattle (SEA) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Seattle (SEA) to Ontario Intl. Airport (ONT)
Flights from San Francisco (SFO) to Ontario Intl. Airport (ONT)
Standard Link for Flights from San Francisco (SFO) to Ontario Intl. Airport (ONT)
Flights from San José del Cabo (SJD) to Orange County (SNA)
Standard Link for Flights from San José del Cabo (SJD) to Orange County (SNA)
Flights from Southampton (SOU) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Southampton (SOU) to Ontario Intl. Airport (ONT)
Flights from St. Louis (STL) to Orange County (SNA)
Standard Link for Flights from St. Louis (STL) to Orange County (SNA)
Flights from Tampa (TPA) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Tampa (TPA) to Ontario Intl. Airport (ONT)
Flights from Santa Cruz (VVI) to Orange County (SNA)
Standard Link for Flights from Santa Cruz (VVI) to Orange County (SNA)
Flights from Halifax (YHZ) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Halifax (YHZ) to Ontario Intl. Airport (ONT)
Flights from Montreal (YMQ) to Los Angeles (QLA)
Standard Link for Flights from Montreal (YMQ) to Los Angeles (QLA)
Flights from Vancouver (YVR) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Vancouver (YVR) to Ontario Intl. Airport (ONT)
Flights from Winnipeg (YWG) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Winnipeg (YWG) to Ontario Intl. Airport (ONT)
Flights from Calgary (YYC) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Calgary (YYC) to Ontario Intl. Airport (ONT)
Flights from Calgary (YYC) to Orange County (SNA)
Standard Link for Flights from Calgary (YYC) to Orange County (SNA)
Flights from Toronto (YYZ) to Ontario Intl. Airport (ONT)
Standard Link for Flights from Toronto (YYZ) to Ontario Intl. Airport (ONT)
Flights from Toronto (YYZ) to Los Angeles (QLA)
Standard Link for Flights from Toronto (YYZ) to Los Angeles (QLA)
Flights from Toronto (YYZ) to Orange County (SNA)
Standard Link for Flights from Toronto (YYZ) to Orange County (SNA)
Flights from Zürich (ZRH) to Los Angeles (QLA)
Standard Link for Flights from Zürich (ZRH) to Los Angeles (QLA)

*Available to Expedia members.

£355 Cheap Flights from London (LON) to Ontario Intl. Airport (ONT)

Popular airlines from London to Ontario Intl. Airport (ONT)

Be in the know

Book smarter

Earn twice

Cheap Flights from London to Ontario (LON-ONT)

Alternative airports near Ontario

Travel information

Explore a world of travel with Expedia