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Flight tickets from Spokane International to Ontario International

Compare Spokane International to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Spokane International to Ontario International

Looking for a cheap last-minute deal or the best return flight from Spokane International Airport to Ontario International Airport? If you want to travel next month, return fares start from ₹ 23,401. Find the lowest prices on one-way and return tickets right here.
Ontario.₹ 11,481 per passenger.Departing Fri, 14 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Spokane International on Fri, 14 Aug, arriving in Ontario International.Price includes taxes and charges.From ₹ 11,481, select.
Ontario.₹ 13,992 per passenger.Departing Mon, 1 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Spokane International on Mon, 1 Jun, arriving in Ontario International.Price includes taxes and charges.From ₹ 13,992, select.
Ontario.₹ 17,154 per passenger.Departing Fri, 31 Jul.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Spokane International on Fri, 31 Jul, arriving in Ontario International.Price includes taxes and charges.From ₹ 17,154, select.
Ontario.₹ 17,378 per passenger.Departing Wed, 27 May.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Spokane International on Wed, 27 May, arriving in Ontario International.Price includes taxes and charges.From ₹ 17,378, select.
Ontario.₹ 17,386 per passenger.Departing Wed, 16 Sep.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Spokane International on Wed, 16 Sep, arriving in Ontario International.Price includes taxes and charges.From ₹ 17,386, select.
Ontario.₹ 18,930 per passenger.Departing Sat, 3 Oct.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Spokane International on Sat, 3 Oct, arriving in Ontario International.Price includes taxes and charges.From ₹ 18,930, select.
Ontario.₹ 19,532 per passenger.Departing Thu, 31 Dec.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Spokane International on Thu, 31 Dec, arriving in Ontario International.Price includes taxes and charges.From ₹ 19,532, select.

Find the cheapest month to fly from Spokane International to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Spokane International to Ontario International flights are currently cheapest in August.
May
from ₹ 17,378
Jun
from ₹ 13,992
Jul
from ₹ 17,154
Aug
from ₹ 11,481
Sep
from ₹ 17,386
Oct
from ₹ 18,930
Nov
Find prices
Dec
from ₹ 19,532
Jan
Find prices
Feb
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Mar
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Apr
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Spokane International to Ontario International: Alternative routes

Compare routes from Spokane International to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Ontario International

4km from central Ontario
Closest
from ₹ 11,481
Search flights

San Bernardino Norton AFB

39km from central Ontario
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Santa Ana John Wayne

48km from central Ontario
Cheapest
from ₹ 4,352
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Long Beach Municipal

54km from central Ontario
from ₹ 17,443
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Hawthorne

65km from central Ontario
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Burbank

67km from central Ontario
from ₹ 14,273
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Los Angeles International

71km from central Ontario
from ₹ 9,700
Search flights

Spokane to Ontario: Flight information

The things to know before you go.
Cheapest flight found₹ 11,481
Cheapest month to flyAugust

Finding cheap flights from Spokane International to Ontario International: Frequently asked questions

The best price we found for a return flight from Spokane International to Ontario International is ₹ 23,401. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Spokane International to Ontario International. But we found flights with one or more stops from ₹ 23,401.
As of May 2026, there are no flights flying from Spokane International to Ontario International.
The cheapest month to fly from Spokane International to Ontario International is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Spokane International Airport to Ontario International Airport on Friday, 12 June 2026.
No airlines currently offer direct flights between Spokane International Airport and Ontario International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Ontario International.

Travelling from Spokane International Airport (GEG) to Ontario International Airport (ONT): what you need to know

  • Spokane and Ontario are in the UTC-7 timezone. That means you won't have to change your watch when you arrive.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your GEG to ONT flight.

  • You'll likely experience longer lines during popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • If you'd like to add a stop to your trip, just uncheck 'Direct flights only' when searching for your ticket from Spokane International Airport to Ontario International Airport. These are the top stopovers between GEG and ONT:

    • Harry Reid Airport (formerly McCarran Airport)

    • Metropolitan Oakland International Airport

    • Seattle-Tacoma International Airport

How to find the cheapest flights from Spokane International Airport (GEG) to Ontario International Airport (ONT)

  • The lowest price we've seen for a one-way Spokane International Airport to Ontario International Airport flight is ₹ 11,481. A round-trip ticket is currently ₹ 23,401. Depending on the availability when you book, these fares could change.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from GEG to ONT if you book early. Airlines often have some great early bird rates.

  • Getting cheap flights from Spokane International Airport to Ontario International Airport is more likely if you're flexible with your travel plans. Use the 'Whole month' search function to see the lowest fares across each month and snap up a great deal.

  • Picking up cheap flights from GEG to ONT is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as fares go down.

  • Discover the ideal flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Spokane International Airport to Ontario International Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Spokane International Airport (GEG)

  • GEG is located at 9000 West Airport Drive.

  • Spokane International Airport scores top marks for its on-time performance. 83.11% of flights that take off from GEG land on time.

  • To reach Spokane International Airport from central Spokane, it'll take about 15 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 10 kilometres from the airport to the city centre.

  • Taking public transport? Expect a journey time of around 1 hour 5 minutes.

  • Looking for a convenient hotel close to GEG? If you've booked an early flight from Spokane International Airport to Ontario International Airport, these stays will put you moments from your departure lounge:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • You'll find ONT at 2900 E. Airport Drive.

  • From Ontario International Airport, Ontario is approximately 6 kilometres away. It takes around 10 minutes to get to the centre driving.

  • If you're travelling on public transport, expect a journey time of roughly 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

  • It's time to pick your travel dates for your flight from Spokane International Airport to Ontario International Airport. August is the most popular month to visit Ontario. If you want a more laid-back vibe, go in May.

  • The warmest month in Ontario is August, with temperatures ranging between 15ºC and 35ºC. Lock in your flights from Spokane International Airport to Ontario International Airport in this month if this is the kind of weather you like.

  • January sees average temperatures of between 4ºC and 23ºC. Look for cheap tickets from GEG to ONT around that time if you want to travel when it's cooler.

Explore more of United States

  • Los Angeles is just one of the many cities in United States waiting to be explored after you've seen Ontario. Around 56 kilometres away to the west, its best attractions include Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Around 153 kilometres south of Ontario, San Diego is another favourite stop in United States. Start your sightseeing at San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.