Flights from St. Louis Lambert International Airport to Ontario International Airport
Cheap Flight Deals from St. Louis Lambert International Airport to Ontario International Airport
Search for flights from St. Louis to Los Angeles and check out affordable one-way and round-trip options.
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STL 18:537h 6m1 stopsONT 23:59St. Louis - Ontario | Sat, May 3 | Frontier Airlines
SIN 00:596h 10m1 stopsSTL 09:09Ontario - St. Louis | Wed, May 7 | Frontier AirlinesAU$ 184 AU$ 71374% OFF74% OFFAU$ 713 AU$ 184 -
STL 21:5525h 32m1 stopsONT 21:27St. Louis - Ontario | Fri, May 2 | Frontier Airlines
SIN 00:596h 10m1 stopsSTL 09:09Ontario - St. Louis | Sat, May 10 | Frontier AirlinesAU$ 224 AU$ 71369% OFF69% OFFAU$ 713 AU$ 224
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STL 21:5511h 29m1 stopsONT 07:24St. Louis - Ontario | Sun, May 4 | Frontier Airlines
SIN 00:5912h 8m1 stopsSTL 15:07Ontario - St. Louis | Thu, May 8 | Frontier AirlinesAU$ 227 AU$ 71368% OFF68% OFFAU$ 713 AU$ 227
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STL 21:5517h 21m1 stopsONT 13:16St. Louis - Ontario | Thu, May 8 | Frontier Airlines
SIN 00:596h 10m1 stopsSTL 09:09Ontario - St. Louis | Wed, May 14 | Frontier AirlinesAU$ 27162% OFFAU$ 713 AU$ 271
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STL 21:5513h 59m1 stopsONT 09:54St. Louis - Ontario | Mon, May 12 | Frontier Airlines
SIN 16:5929h 7m1 stopsSTL 00:06Ontario - St. Louis | Tue, May 13 | Frontier AirlinesAU$ 28161% OFFAU$ 713 AU$ 281
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STL 18:537h 6m1 stopsONT 23:59St. Louis - Ontario | Sat, May 10 | Frontier Airlines
SIN 00:596h 10m1 stopsSTL 09:09Ontario - St. Louis | Wed, May 14 | Frontier AirlinesAU$ 28560% OFFAU$ 713 AU$ 285
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STL 20:1517h1 stopsONT 11:15St. Louis - Ontario | Wed, May 14 | Frontier Airlines
SIN 00:597h1 stopsSTL 09:59Ontario - St. Louis | Sat, May 17 | Frontier AirlinesAU$ 29159% OFFAU$ 713 AU$ 291
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STL 16:079h 52m1 stopsONT 23:59St. Louis - Ontario | Thu, May 1 | Frontier Airlines
SIN 00:597h1 stopsSTL 09:59Ontario - St. Louis | Sat, May 3 | Frontier AirlinesAU$ 29259% OFFAU$ 713 AU$ 292
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STL 21:5517h 21m1 stopsONT 13:16St. Louis - Ontario | Sun, May 11 | Frontier Airlines
SIN 06:1524h 54m1 stopsSTL 09:09Ontario - St. Louis | Tue, May 13 | Frontier AirlinesAU$ 29757% OFFAU$ 713 AU$ 297
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STL 18:587h 1m1 stopsONT 23:59St. Louis - Ontario | Wed, Apr 30 | Frontier Airlines
SIN 00:597h1 stopsSTL 09:59Ontario - St. Louis | Sat, May 3 | Frontier AirlinesAU$ 52726% OFFAU$ 713 AU$ 527
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STL 13:0017h 25m1 stopsLAX Invalid DateSt. Louis - Los Angeles | Thu, May 1 | Normal Airline
LAX 15:006hDirectSTL 16:00Los Angeles - St. Louis | Sat, May 3 | Normal AirlineFind More FlightsFind More Flights
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STL 16:079h 52m1 stopsONT 23:59St. Louis - Ontario | Thu, May 15 | Frontier AirlinesAU$ 129 AU$ 48673% OFF73% OFFAU$ 486 AU$ 129
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STL 21:5516h 13m1 stopsONT 12:08St. Louis - Ontario | Mon, May 5 | Frontier AirlinesAU$ 133 AU$ 48673% OFF73% OFFAU$ 486 AU$ 133
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STL 21:5511h 29m1 stopsONT 07:24St. Louis - Ontario | Fri, May 16 | Frontier AirlinesAU$ 137 AU$ 48672% OFF72% OFFAU$ 486 AU$ 137
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STL 18:537h 6m1 stopsONT 23:59St. Louis - Ontario | Fri, May 9 | Frontier AirlinesAU$ 13872% OFFAU$ 486 AU$ 138
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STL 20:155h 44m1 stopsONT 23:59St. Louis - Ontario | Sat, May 17 | Frontier AirlinesAU$ 14770% OFFAU$ 486 AU$ 147
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STL 21:5511h 29m1 stopsONT 07:24St. Louis - Ontario | Sun, May 11 | Frontier AirlinesAU$ 14869% OFFAU$ 486 AU$ 148
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STL 21:5516h 13m1 stopsONT 12:08St. Louis - Ontario | Mon, May 19 | Frontier AirlinesAU$ 17065% OFFAU$ 486 AU$ 170
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STL 21:5511h 29m1 stopsONT 07:24St. Louis - Ontario | Fri, May 2 | Frontier AirlinesAU$ 18762% OFFAU$ 486 AU$ 187
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STL 18:537h 6m1 stopsONT 23:59St. Louis - Ontario | Sat, May 3 | Frontier AirlinesAU$ 19460% OFFAU$ 486 AU$ 194
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STL 18:587h 1m1 stopsONT 23:59St. Louis - Ontario | Wed, Apr 30 | Frontier AirlinesAU$ 35926% OFFAU$ 486 AU$ 359
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STL 13:0017h 25m1 stopsLAX Invalid DateSt. Louis - Los Angeles | Thu, May 1 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Selected Airlines from St. Louis Lambert International Airport to Ontario International Airport
See which airlines fly from St. Louis to Los Angeles. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.
Find more flights and airlines
Flight Schedule from St. Louis Lambert International Airport to Ontario International Airport
Check the schedule for flights from St. Louis to Los Angeles and find the flight that best matches your travel plans.
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DL2363
St. Louis Lambert International Airport
07:40
STL
09:58
SLC
S M T W T F SSearch -
DL1345
Salt Lake City International Airport
11:30
SLC
12:16
ONT
S M T W T F S -
DL1492
St. Louis Lambert International Airport
17:00
STL
19:14
SLC
S M T W T F SSearch -
DL1614
Salt Lake City International Airport
22:55
SLC
23:41
ONT
S M T W T F S -
F92017
St. Louis Lambert International Airport
14:27
STL
16:03
LAS
S - - W T - SSearch -
F92231
Harry Reid International Airport
20:45
LAS
21:52
ONT
S - T W T F S -
F94567
St. Louis Lambert International Airport
19:20
STL
20:51
DEN
S - T W T F -Search -
F91499
Denver International Airport
22:38
DEN
23:59
ONT
S M T W T F S -
F94567
St. Louis Lambert International Airport
19:20
STL
20:51
DEN
S - T W T F -Search -
F91261
Denver International Airport
10:00
DEN
11:20
ONT
S M T W T F S -
F92017
St. Louis Lambert International Airport
14:27
STL
16:03
LAS
S - - W T - SSearch -
F91283
Harry Reid International Airport
08:49
LAS
09:53
ONT
S M T W T F S -
F92017
St. Louis Lambert International Airport
14:27
STL
16:03
LAS
S - - W T - SSearch -
F91357
Harry Reid International Airport
15:08
LAS
16:19
ONT
S M T W T F S -
WN1961
St. Louis Lambert International Airport
10:00
STL
11:20
DEN
S M T W T - -Search -
F91499
Denver International Airport
22:38
DEN
23:59
ONT
S M T W T F S -
F92017
St. Louis Lambert International Airport
14:27
STL
16:03
LAS
S - - W T - SSearch -
F94205
Harry Reid International Airport
16:20
LAS
17:28
ONT
S - - - T F S
St. Louis Lambert International Airport to Ontario International Airport Flights Info
| Flight distance | 2,485.2km |
|---|---|
| Cheapest one-way ticket price | AU$ 129 |
| Cheapest return ticket price | AU$ 430 |
FAQs for St. Louis Lambert International Airport to Ontario International Airport Flights
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How long is the flights from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT)?
It takes around 6 hours 5 minutes to fly from St. Louis Lambert International Airport (STL) to Ontario International Airport(ONT). -
How many daily flights are there from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT)?
There are around 1 daily flights from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT). -
When are flight from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT) the cheapest?
Tickets cost around AU$ 426 in June, making it the cheapest month to book. St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT) is a popular route, so don't forget to book your tickets in advance. -
When are flight from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT) most expensive?
The route from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT) is quite popular. Without considering departure times or holidays, tickets cost around AU$ 426 in June, the most expensive month to book this route. -
What is the transportation method from the main airport to downtown in Los Angeles?
- The distance from Los Angeles International Airport to downtown is about 19km, by taxi about 30 minutes.
- The distance from Ontario International Airport to downtown is about 59km, by taxi about 1 hour 10 minutes.
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Which airline operates the most direct flights from St. Louis Lambert International Airport (STL) to Ontario International Airport (ONT)?
Southwest Airlines is a very popular airline operating an average of 80 flights per month.
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