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₹ 7,093+ 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 6/12. 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.
ONT — DEL
8 Dec — 15 Dec1
1 adult
1 adult, Economy, 0 bags

Direct flights from Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 8 November 2025.

Fri 5/1206:40ONT - SEA
Nonstop3h 05mDelta
Sat 13/1220:05SEA - ONT
Nonstop2h 42mDelta
Deal found 5/11₹ 12,325
Fri 9/116:03ONT - SEA
Nonstop2h 51mAlaska Airlines
Fri 9/121:20SEA - ONT
Nonstop2h 36mAlaska Airlines
Deal found 6/11₹ 13,566
Sun 7/1206:00ONT - SEA
Nonstop2h 57mAlaska Airlines
Tue 9/1215:57SEA - ONT
Nonstop2h 36mAlaska Airlines
Deal found 5/11₹ 14,098
Fri 19/1212:40ONT - SEA
Nonstop2h 57mDelta
Wed 7/119:45SEA - ONT
Nonstop2h 44mDelta
Deal found 7/11₹ 14,896
Mon 5/119:19ONT - SEA
Nonstop2h 51mAlaska Airlines
Wed 7/118:00SEA - ONT
Nonstop2h 36mAlaska Airlines
Deal found 7/11₹ 15,871
Thu 25/1206:00ONT - SEA
Nonstop2h 57mAlaska Airlines
Thu 1/121:35SEA - ONT
Nonstop2h 39mAlaska Airlines
Deal found 6/11₹ 16,669
Wed 17/1206:00ONT - SEA
Nonstop2h 57mAlaska Airlines
Wed 24/1221:35SEA - ONT
Nonstop2h 39mAlaska Airlines
Deal found 7/11₹ 17,113
Sun 14/1206:00ONT - SEA
Nonstop2h 57mAlaska Airlines
Wed 17/1208:43SEA - ONT
Nonstop2h 36mAlaska Airlines
Deal found 7/11₹ 17,645
Mon 5/116:36ONT - SEA
Nonstop2h 51mAlaska Airlines
Mon 5/121:35SEA - ONT
Nonstop2h 39mAlaska Airlines
Deal found 5/11₹ 17,911
Wed 31/1206:38ONT - SEA
Nonstop3h 07mDelta
Sun 4/120:07SEA - ONT
Nonstop2h 42mDelta
Deal found 6/11₹ 18,443
Thu 1/106:38ONT - SEA
Nonstop3h 07mDelta
Mon 5/119:45SEA - ONT
Nonstop2h 44mDelta
Deal found 7/11₹ 18,531

Find direct flights from Ontario within your budget

 
Use the slider to find direct flights from Ontario within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 454,620 searches. This data was last updated on 8 November 2025.

Fly to

New Delhi

Route

Depart

Return

Price

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 5/12

06:40-09:45

Nonstop3h 05m

Seattle/Tacoma Intl

Wed 17/12

08:30-11:13

Nonstop2h 43m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 24/12

16:36-19:27

Nonstop2h 51m

Seattle/Tacoma Intl

Fri 2/1

21:35-00:14

Nonstop2h 39m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 11/12

06:40-09:45

Nonstop3h 05m

Seattle/Tacoma Intl

Wed 31/12

09:45-12:32

Nonstop2h 47m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sun 7/12

06:00-08:57

Nonstop2h 57m

Seattle/Tacoma Intl

Wed 17/12

08:43-11:19

Nonstop2h 36m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 5/12

06:40-09:45

Nonstop3h 05m

Seattle/Tacoma Intl

Mon 8/12

08:30-11:13

Nonstop2h 43m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 16/1

16:03-18:54

Nonstop2h 51m

Seattle/Tacoma Intl

Sat 17/1

18:00-20:36

Nonstop2h 36m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 5/12

06:40-09:45

Nonstop3h 05m

Seattle/Tacoma Intl

Fri 12/12

20:05-22:47

Nonstop2h 42m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 6/12

06:40-09:45

Nonstop3h 05m

Seattle/Tacoma Intl

Mon 8/12

08:30-11:13

Nonstop2h 43m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 13/12

12:40-15:37

Nonstop2h 57m

Seattle/Tacoma Intl

Fri 9/1

11:15-13:56

Nonstop2h 41m

₹ 12,325

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 5/2

06:00-08:54

Nonstop2h 54m

Seattle/Tacoma Intl

Thu 5/2

12:31-15:08

Nonstop2h 37m

₹ 13,566

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 21 results
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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.
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.

Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 8 November 2025.

  • Where can you fly direct from Ontario?

    Currently, the most popular direct flight destination from Ontario is Denver.

  • What is the best time of year to fly direct from Ontario?

    If you're seeking the lowest price on a direct flight from Ontario, January is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, February offers travelers the most options.

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