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Route

Depart

Return

Price

Cheapest return flight

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Sat 12/12

07:00-10:05

Nonstop3h 05m

Seattle/Tacoma Intl

Sat 9/1

19:55-22:43

Nonstop2h 48m

₹ 23,452

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Wed 11/11

06:00-08:51

Nonstop2h 51m

Seattle/Tacoma Intl

Wed 2/12

19:55-22:39

Nonstop2h 44m

₹ 23,452

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Tue 10/11

07:00-10:01

Nonstop3h 01m

Seattle/Tacoma Intl

Wed 2/12

20:11-22:59

Nonstop2h 48m

₹ 23,452

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Sat 3/10

18:00-20:50

Nonstop2h 50m

Seattle/Tacoma Intl

Mon 5/10

08:20-11:14

Nonstop2h 54m

₹ 24,781

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Thu 15/10

06:02-08:49

Nonstop2h 47m

Seattle/Tacoma Intl

Sat 17/10

07:30-10:17

Nonstop2h 47m

₹ 24,876

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Wed 11/11

07:00-10:01

Nonstop3h 01m

Seattle/Tacoma Intl

Sun 15/11

20:11-23:00

Nonstop2h 49m

₹ 24,876

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Fri 9/10

11:56-14:55

Nonstop2h 59m

Seattle/Tacoma Intl

Sun 11/10

08:25-11:16

Nonstop2h 51m

₹ 26,301

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Thu 15/10

11:56-14:55

Nonstop2h 59m

Seattle/Tacoma Intl

Mon 19/10

19:56-22:43

Nonstop2h 47m

₹ 26,301

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Thu 22/10

11:56-14:55

Nonstop2h 59m

Seattle/Tacoma Intl

Sun 25/10

08:25-11:16

Nonstop2h 51m

₹ 26,396

Fastest return journey

OntarioSeattle

ONT Ontario - SEA Seattle/Tacoma Intl

ONTSEA

Ontario

Fri 30/10

11:13-13:56

Nonstop2h 43m

Seattle/Tacoma Intl

Sat 31/10

10:31-13:16

Nonstop2h 45m

₹ 26,775

Flights are sorted by cheapest return flights first.

Deals found on 29/8

Showing 1-10 of 40 resultsSorted by cheapest first

Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.

ONT-DEL

ONT-SEA

ONT-JFK

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

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Best time to book a flight from Ontario

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Direct flights from California cities

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Direct flights from North America cities

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₹ 14,622+ Direct flights from Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

Find direct flights from Ontario within your budget

Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights from California cities

Book a direc flight from one of these other cities located in California.

Direct flights from North America cities

Book a direct flight from one of these popular origins located in North America.

Direct flights from United States

Book a direct flight from one of these popular origins located in United States.

Direct flights to United States

Consider flying direct to one of these destinations in United States

100% Free

Book With Flexibility

Travel Smart