Find flights
Deals

₹ 10,437+ 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 4/7. 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
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

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 17 April 2026.

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 20/5

17:50-20:50

Nonstop3h 00m

Seattle/Tacoma Intl

Sat 23/5

19:50-22:34

Nonstop2h 44m

₹ 18,358

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sun 10/5

19:59-22:50

Nonstop2h 51m

Seattle/Tacoma Intl

Tue 19/5

08:30-11:10

Nonstop2h 40m

₹ 19,290

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 6/5

15:24-18:15

Nonstop2h 51m

Seattle/Tacoma Intl

Sun 10/5

07:05-09:45

Nonstop2h 40m

₹ 19,290

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 8/5

17:50-20:50

Nonstop3h 00m

Seattle/Tacoma Intl

Tue 19/5

19:50-22:34

Nonstop2h 44m

₹ 19,290

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 9/5

17:45-20:45

Nonstop3h 00m

Seattle/Tacoma Intl

Mon 11/5

09:45-12:35

Nonstop2h 50m

₹ 19,290

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 16/5

06:45-09:49

Nonstop3h 04m

Seattle/Tacoma Intl

Mon 18/5

19:50-22:34

Nonstop2h 44m

₹ 19,476

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 8/5

15:26-18:17

Nonstop2h 51m

Seattle/Tacoma Intl

Sun 10/5

07:05-09:45

Nonstop2h 40m

₹ 20,222

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 8/5

06:00-08:50

Nonstop2h 50m

Seattle/Tacoma Intl

Mon 11/5

21:17-23:59

Nonstop2h 42m

₹ 20,222

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 14/5

11:52-14:55

Nonstop3h 03m

Seattle/Tacoma Intl

Mon 18/5

09:45-12:35

Nonstop2h 50m

₹ 20,315

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 23/5

16:03-18:52

Nonstop2h 49m

Seattle/Tacoma Intl

Wed 27/5

12:30-15:09

Nonstop2h 39m

₹ 21,154

Flights are sorted by cheapest return flights first.

Deals found on 12/4

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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.

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 San Francisco
Direct flights from Los Angeles
Direct flights from San Diego
Direct flights from San Jose

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.