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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Round-trip
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One way
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Cheapest nonstop
SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Thu, Mar 27 | Frontier Airlines
SIN 16:013hNonstopSEA 19:01Ontario - Seattle | Wed, Apr 2 | Frontier Airlines£50 £6523% OFF23% OFF£65 £50 -
SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Mon, Mar 17 | Frontier Airlines
SIN 10:212h 51mNonstopSEA 13:12Ontario - Seattle | Thu, Mar 20 | Frontier Airlines£51 £6521% OFF21% OFF£65 £51
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SEA 12:462h 39mNonstopONT 15:25Seattle - Ontario | Mon, Apr 14 | Frontier Airlines
SIN 16:013hNonstopSEA 19:01Ontario - Seattle | Tue, Apr 15 | Frontier Airlines£54 £6517% OFF17% OFF£65 £54
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Mon, May 12 | Frontier Airlines
SIN 17:353h 7mNonstopSEA 20:42Ontario - Seattle | Wed, May 14 | Frontier Airlines£5516% OFF£65 £55
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Thu, Mar 20 | Frontier Airlines
SIN 10:212h 51mNonstopSEA 13:12Ontario - Seattle | Thu, Mar 27 | Frontier Airlines£5614% OFF£65 £56
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Fri, Mar 21 | Frontier Airlines
SIN 10:212h 51mNonstopSEA 13:12Ontario - Seattle | Thu, Mar 27 | Frontier Airlines£5713% OFF£65 £57
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Sun, Mar 23 | Frontier Airlines
SIN 16:593hNonstopSEA 19:59Ontario - Seattle | Wed, Mar 26 | Frontier Airlines£5811% OFF£65 £58
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SEA 19:402h 42mNonstopONT 22:22Seattle - Ontario | Tue, Mar 25 | Delta Air Lines
SIN 16:013hNonstopSEA 19:01Ontario - Seattle | Wed, Apr 2 | Frontier Airlines£5910% OFF£65 £59 -
SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Mon, Mar 31 | Frontier Airlines
SIN 10:122h 54mNonstopSEA 13:06Ontario - Seattle | Thu, Apr 3 | Frontier Airlines£599% OFF£65 £59
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Thu, May 1 | Frontier Airlines
SIN 17:353h 7mNonstopSEA 20:42Ontario - Seattle | Sat, May 3 | Frontier Airlines£599% OFF£65 £59
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SEA 13:0017h 25m1 stopsLAX Invalid DateSeattle - Los Angeles | Mon, Mar 17 | Normal Airline
LAX 15:006hNonstopSEA 16:00Los Angeles - Seattle | Wed, Mar 19 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Mon, Mar 17 | Frontier Airlines£23 £16086% OFF86% OFF£160 £23
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Fri, Mar 21 | Frontier Airlines£28 £16083% OFF83% OFF£160 £28
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Thu, Mar 20 | Frontier Airlines£29 £16082% OFF82% OFF£160 £29
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SEA 12:462h 39mNonstopONT 15:25Seattle - Ontario | Thu, Apr 10 | Frontier Airlines£2982% OFF£160 £29
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Thu, Mar 27 | Frontier Airlines£2982% OFF£160 £29
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Mon, Mar 31 | Frontier Airlines£2982% OFF£160 £29
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Thu, May 1 | Frontier Airlines£2982% OFF£160 £29
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SEA 18:522h 39mNonstopONT 21:31Seattle - Ontario | Mon, Apr 28 | Frontier Airlines£2982% OFF£160 £29
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SEA 18:502h 35mNonstopONT 21:25Seattle - Ontario | Mon, May 5 | Frontier Airlines£2982% OFF£160 £29
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SEA 12:522h 37mNonstopONT 15:29Seattle - Ontario | Sun, Mar 23 | Frontier Airlines£1469% OFF£160 £146
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SEA 13:0017h 25m1 stopsLAX Invalid DateSeattle - Los Angeles | Mon, Mar 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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AS1088
Seattle-Tacoma International Airport
17:55
SEA
20:29
ONT
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F93163
Seattle-Tacoma International Airport
13:50
SEA
16:30
ONT
S - - W T - SSearch -
AS1003
Seattle-Tacoma International Airport
20:15
SEA
22:46
ONT
S - - W T - SSearch -
AS1254
Seattle-Tacoma International Airport
08:27
SEA
11:05
ONT
S M T W T F SSearch -
HA6814
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 -
DL4031
Seattle-Tacoma International Airport
14:35
SEA
17:15
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 -
F94830
Seattle-Tacoma International Airport
15:11
SEA
17:50
LAS
S M - W T F SSearch -
F92231
Harry Reid International Airport
20:21
LAS
21:27
ONT
S M T - T F - -
DL1239
Seattle-Tacoma International Airport
19:00
SEA
22:03
SLC
S M T W T - SSearch -
DL1614
Salt Lake City International Airport
22:55
SLC
23:52
ONT
S M T W T F S
Seattle-Tacoma International Airport to Ontario International Airport Flights Info
| Flight distance | 1,540.96km |
|---|---|
| Cheapest one-way ticket price | £23 |
| Cheapest return ticket price | £50 |
FAQs for Seattle-Tacoma International Airport to Ontario International Airport Flights
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How long does it take to fly from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT)?
It takes around 2 hours 52 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 10 daily flights from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT). -
When are flight tickets from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) the cheapest?
Tickets cost around £81 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 tickets 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 £136 in March, 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 Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT)?
Alaska Airlines is a very popular airline operating an average of 5041 flights per month.
Find Cheap Flights with Trip.com
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