Skyscanner home

Cheap Flights from Ontario International to Spokane International

Compare Ontario International to Spokane International flight deals

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

Book the best Spokane International fare with no extra fees

Flight deals from Ontario International to Spokane International

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Spokane International Airport? If you want to travel next month, return fares start from R 4,142. Find the lowest prices on one-way and return tickets right here.
Spokane.R 1,947 per passenger.Departing Sat, 29 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Sat, 29 Aug, arriving in Spokane International.Price includes taxes and charges.From R 1,947, select.
Spokane.R 2,438 per passenger.Departing Sat, 5 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Sat, 5 Sep, arriving in Spokane International.Price includes taxes and charges.From R 2,438, select.
Spokane.R 2,721 per passenger.Departing Thu, 12 Nov.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 12 Nov, arriving in Spokane International.Price includes taxes and charges.From R 2,721, select.
Spokane.R 2,728 per passenger.Departing Tue, 1 Dec.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 1 Dec, arriving in Spokane International.Price includes taxes and charges.From R 2,728, select.
Spokane.R 2,729 per passenger.Departing Wed, 7 Oct.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 7 Oct, arriving in Spokane International.Price includes taxes and charges.From R 2,729, select.
Spokane.R 3,291 per passenger.Departing Wed, 6 Jan.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 6 Jan, arriving in Spokane International.Price includes taxes and charges.From R 3,291, select.
Spokane.R 3,292 per passenger.Departing Sat, 20 Feb.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 20 Feb, arriving in Spokane International.Price includes taxes and charges.From R 3,292, select.
Spokane.R 3,293 per passenger.Departing Wed, 9 Jun.One-way flight with United.Outbound indirect flight with United, departs from Ontario International on Wed, 9 Jun, arriving in Spokane International.Price includes taxes and charges.From R 3,293, select.
Spokane.R 3,293 per passenger.Departing Tue, 16 Mar.One-way flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 16 Mar, arriving in Spokane International.Price includes taxes and charges.From R 3,293, select.
Spokane.R 3,489 per passenger.Departing Thu, 15 Apr.One-way flight with United.Outbound indirect flight with United, departs from Ontario International on Thu, 15 Apr, arriving in Spokane International.Price includes taxes and charges.From R 3,489, select.
Spokane.R 4,174 per passenger.Departing Wed, 29 Jul.One-way flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Ontario International on Wed, 29 Jul, arriving in Spokane International.Price includes taxes and charges.From R 4,174, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Spokane International flights are currently cheapest in August.
Jul
from R 4,174
Aug
from R 1,947
Sep
from R 2,438
Oct
from R 2,729
Nov
from R 2,721
Dec
from R 2,728
Jan
from R 3,291
Feb
from R 3,292
Mar
from R 3,293
Apr
from R 3,489
May
Find prices
Jun
from R 3,293

Ontario International to Spokane International: Alternative routes

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

Spokane International

10km from central Spokane
ClosestCheapest
from R 1,947
Search flights

Ontario to Spokane: Flight information

The things to know before you go.
Cheapest flight foundR 1,947
Cheapest month to flyAugust

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

The best price we found for a return flight from Ontario International to Spokane International is R 4,142. 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 Ontario International to Spokane International. But we found flights with one or more stops from R 4,142.
As of July 2026, there are no flights flying from Ontario International to Spokane International.
The cheapest month to fly from Ontario International to Spokane International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Spokane International Airport on Tuesday, 25 August 2026.
No airlines currently offer direct flights between Ontario International Airport and Spokane 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 Spokane 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 Spokane 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 Spokane International.

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

  • Your ONT to GEG flight won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak month like July? Public holidays and other popular seasons can mean longer queues at security. Play it safe and get there up to four hours before an international flight and two hours before a domestic departure.

  • Think about adding a stopover when booking your ticket from Ontario International Airport to Spokane International Airport. Simply deselect 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Check out these options between ONT and GEG:

    • Sacramento International Airport

    • San Jose International Airport

    • Oakland Metropolitan Oak Airport

Handy information about Ontario International Airport (ONT)

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

  • Ontario International Airport gets high marks for its on-time performance. 83% of flights that depart ONT reach their destination on time.

  • Central Ontario to Ontario International Airport is around 10 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're ride-sharing, catching a taxi or driving.

  • Catching public transport? Expect a journey time of around 45 minutes.

  • Get your trip off to a relaxed start by staying near ONT. Whether you're boarding an early flight from Ontario International Airport to Spokane International Airport or want to avoid feeling rushed, these hotels are perfect:

Arriving at Spokane International Airport (GEG)

When to fly to Spokane International Airport (GEG)

  • It's time to plan your travel dates for your flight from Ontario International Airport to Spokane International Airport. July is the busiest month to visit Spokane. If you prefer a more low-key vibe, go in March.

  • The warmest month in Spokane is July, with the temperature ranging between 12ºC (54ºF) and 33ºC (91ºF). Book your flights from Ontario International Airport to Spokane International Airport in this month if this is the type of weather you enjoy.

  • For cooler conditions, look for a cheap ticket from ONT to GEG in January. Temperatures average between -12ºC (10ºF) and 4ºC (39ºF) then.

Explore more of the United States

  • You've visited Spokane, now it's time to discover other parts of the United States. Travel about 370 kilometres west to Seattle to check off its leading attractions. From Space Needle to Pike Place Market and Seattle Skyline, you'll have a full itinerary ahead.

  • Around 467 kilometres south-west of Spokane, Portland is another essential stop in the United States. Start your sightseeing at Portland Japanese Garden, Peninsula Park Rose Garden and Beyond Van Gogh Portland.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.