Flights from Seattle-Tacoma International Airport to Ontario International Airport
Cheap Flight Deals from Seattle-Tacoma International Airport to Ontario International Airport
Search for flights from Seattle to Los Angeles and check out affordable one-way and round-trip options.
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Cheapest nonstop
SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Mon, May 12 | Frontier Airlines
SIN 17:353h 7mNonstopSEA 20:42Ontario - Seattle | Wed, May 14 | Frontier AirlinesAU$ 111 AU$ 19343% OFF43% OFFAU$ 193 AU$ 111 -
SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Thu, May 1 | Frontier Airlines
SIN 17:353h 7mNonstopSEA 20:42Ontario - Seattle | Sat, May 3 | Frontier AirlinesAU$ 120 AU$ 19338% OFF38% OFFAU$ 193 AU$ 120
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SEA 18:522h 39mNonstopONT 21:31Seattle - Ontario | Mon, Apr 28 | Frontier Airlines
SIN 16:293h 3mNonstopSEA 19:32Ontario - Seattle | Mon, May 5 | Frontier AirlinesAU$ 125 AU$ 19335% OFF35% OFFAU$ 193 AU$ 125
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Thu, May 8 | Frontier Airlines
SIN 16:293h 3mNonstopSEA 19:32Ontario - Seattle | Mon, May 12 | Frontier AirlinesAU$ 12933% OFFAU$ 193 AU$ 129
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SEA 12:462h 39mNonstopONT 15:25Seattle - Ontario | Mon, Apr 21 | Frontier Airlines
SIN 16:292h 54mNonstopSEA 19:23Ontario - Seattle | Mon, Apr 28 | Frontier AirlinesAU$ 12933% OFFAU$ 193 AU$ 129
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SEA 15:262h 36mNonstopONT 18:02Seattle - Ontario | Tue, May 27 | Frontier Airlines
SIN 10:033hNonstopSEA 13:03Ontario - Seattle | Wed, May 28 | Frontier AirlinesAU$ 13630% OFFAU$ 193 AU$ 136
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SEA 13:502h 36mNonstopONT 16:26Seattle - Ontario | Sat, May 24 | Frontier Airlines
SIN 08:393h 7mNonstopSEA 11:46Ontario - Seattle | Sat, May 31 | Frontier AirlinesAU$ 13928% OFFAU$ 193 AU$ 139
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Mon, May 5 | Frontier Airlines
SIN 16:293h 3mNonstopSEA 19:32Ontario - Seattle | Mon, May 12 | Frontier AirlinesAU$ 13928% OFFAU$ 193 AU$ 139
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SEA 05:306h 46m1 stopsONT 12:16Seattle - Ontario | Sat, Apr 19 | Delta Air Lines
SIN 17:353hNonstopSEA 20:35Ontario - Seattle | Sat, Apr 26 | Frontier AirlinesAU$ 12734% OFFAU$ 193 AU$ 127 -
SEA 06:0017h 59m1 stopsONT 23:59Seattle - Ontario | Tue, Apr 29 | Frontier Airlines
SIN 17:353h 7mNonstopSEA 20:42Ontario - Seattle | Tue, May 6 | Frontier AirlinesAU$ 13033% OFFAU$ 193 AU$ 130
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SEA 13:0017h 25m1 stopsLAX Invalid DateSeattle - Los Angeles | Thu, Apr 17 | Normal Airline
LAX 15:006hNonstopSEA 16:00Los Angeles - Seattle | Sat, Apr 19 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Thu, May 1 | Frontier AirlinesAU$ 62 AU$ 9937% OFF37% OFFAU$ 99 AU$ 62
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SEA 18:522h 39mNonstopONT 21:31Seattle - Ontario | Mon, Apr 28 | Frontier AirlinesAU$ 62 AU$ 9937% OFF37% OFFAU$ 99 AU$ 62
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Mon, May 5 | Frontier AirlinesAU$ 62 AU$ 9937% OFF37% OFFAU$ 99 AU$ 62
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SEA 12:462h 39mNonstopONT 15:25Seattle - Ontario | Thu, Apr 17 | Frontier AirlinesAU$ 6336% OFFAU$ 99 AU$ 63
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SEA 12:462h 39mNonstopONT 15:25Seattle - Ontario | Mon, Apr 21 | Frontier AirlinesAU$ 6336% OFFAU$ 99 AU$ 63
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Mon, May 19 | Frontier AirlinesAU$ 6435% OFFAU$ 99 AU$ 64
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Sun, May 4 | Frontier AirlinesAU$ 6930% OFFAU$ 99 AU$ 69
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SEA 13:502h 36mNonstopONT 16:26Seattle - Ontario | Wed, May 28 | Frontier AirlinesAU$ 7028% OFFAU$ 99 AU$ 70
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SEA 13:502h 36mNonstopONT 16:26Seattle - Ontario | Sat, May 24 | Frontier AirlinesAU$ 7128% OFFAU$ 99 AU$ 71
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SEA 15:102h 42mNonstopONT 17:52Seattle - Ontario | Tue, Jun 10 | Frontier AirlinesAU$ 7128% OFFAU$ 99 AU$ 71
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SEA 13:0017h 25m1 stopsLAX Invalid DateSeattle - Los Angeles | Thu, Apr 17 | 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 Seattle-Tacoma International Airport to Ontario International Airport
See which airlines fly from Seattle to Los Angeles. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.
Flight Schedule from Seattle-Tacoma International Airport to Ontario International Airport
Check the schedule for flights from Seattle to Los Angeles and find the flight that best matches your travel plans.
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AS1086
Seattle-Tacoma International Airport
15:25
SEA
18:04
ONT
S M T W T F SSearch -
F93163
Seattle-Tacoma International Airport
13:50
SEA
16:44
ONT
S M - W T F SSearch -
AS1003
Seattle-Tacoma International Airport
21:22
SEA
23:59
ONT
S - - W T F SSearch -
HA6814
Seattle-Tacoma International Airport
08:27
SEA
11:05
ONT
S M T W T F -Search -
AS1254
Seattle-Tacoma International Airport
08:27
SEA
11:05
ONT
S M T W T F SSearch -
DL4027
Seattle-Tacoma International Airport
19:55
SEA
22:38
ONT
S M T W T F SSearch -
DL4070
Seattle-Tacoma International Airport
07:59
SEA
10:48
ONT
S M T W T F SSearch -
DL4031
Seattle-Tacoma International Airport
14:35
SEA
17:15
ONT
S M T W T F SSearch
Seattle-Tacoma International Airport to Ontario International Airport Flights Info
| Flight distance | 1,540.96km |
|---|---|
| Cheapest one-way ticket price | AU$ 61 |
| Cheapest return ticket price | AU$ 110 |
FAQs for Seattle-Tacoma International Airport to Ontario International Airport Flights
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How long is the flights from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT)?
It takes around 2 hours 51 minutes to fly from Seattle-Tacoma International Airport (SEA) to Ontario International Airport(ONT). -
How many daily flights are there from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT)?
There are around 11 daily flights from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT). -
When are flight from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) the cheapest?
Tickets cost around AU$ 136 in May, making it the cheapest month to book. Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) is a popular route, so don't forget to book your tickets in advance. -
When are flight from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) most expensive?
The route from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) is quite popular. Without considering departure times or holidays, tickets cost around AU$ 258 in April, the most expensive month to book this route. -
What time does the earliest flight from Seattle-Tacoma International Airport to Ontario International Airport depart?
The earliest flight departs from Seattle-Tacoma International Airport (SEA) at 05:05 and arrives in Ontario International Airport (ONT) at 12:24. -
What time does the latest flight from Seattle-Tacoma International Airport to Ontario International Airport depart?
The latest flight departs from Seattle-Tacoma International Airport (SEA) at 21:30 and arrives in Ontario International Airport (ONT) at 00:13. -
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 Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT)?
Alaska Airlines is a very popular airline operating an average of 4830 flights per month.
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