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Cheap Flights from Fort Myers (RSW) to Ontario (ONT)

Compare Fort Myers Southwest Florida Reg 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 Fort Myers Southwest Florida Reg to Ontario International

Looking for a cheap last-minute deal or the best return flight from Fort Myers Southwest Florida Reg to Ontario International? Find the lowest prices on one-way and return tickets right here.
Ontario.$426 per passenger.Departing Sat, 30 Aug, returning Sat, 6 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Sat, 30 Aug, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 6 Sep, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $426, select.
Ontario.$426 per passenger.Departing Thu, 4 Sep, returning Sat, 13 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Thu, 4 Sep, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 13 Sep, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $426, select.
Ontario.$514 per passenger.Departing Fri, 21 Nov, returning Sat, 6 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Fri, 21 Nov, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 6 Dec, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $514, select.
Ontario.$515 per passenger.Departing Wed, 29 Oct, returning Wed, 5 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Wed, 29 Oct, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 5 Nov, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $515, select.
Ontario.$598 per passenger.Departing Thu, 13 Nov, returning Mon, 17 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Thu, 13 Nov, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Mon, 17 Nov, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $598, select.
Ontario.$609 per passenger.Departing Sat, 18 Oct, returning Sat, 25 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Sat, 18 Oct, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 25 Oct, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $609, select.
Ontario.$629 per passenger.Departing Wed, 3 Sep, returning Wed, 1 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Wed, 3 Sep, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 1 Oct, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $629, select.
Ontario.$708 per passenger.Departing Sun, 1 Feb, returning Fri, 6 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fort Myers Southwest Florida Reg on Sun, 1 Feb, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 6 Feb, arriving in Fort Myers Southwest Florida Reg.Price includes taxes and charges.From $708, select.

Find the cheapest month to fly from Fort Myers Southwest Florida Reg to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Fort Myers Southwest Florida Reg to Ontario International flights are currently cheapest in September.
Aug
from $763
Sep
from $426
Oct
from $609
Nov
from $598
Dec
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Jan
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Feb
from $708
Mar
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Apr
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May
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Jun
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Jul
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Fort Myers Southwest Florida Reg to Ontario International: Alternative routes

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

Fort Myers to Ontario: Flight information

The things to know before you go.
Cheapest flight found$426
Cheapest month to flyAugust

Finding cheap flights from Fort Myers Southwest Florida Reg to Ontario International: Frequently asked questions

The best price we found for a return flight from Fort Myers Southwest Florida Reg to Ontario International is $426. 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 Fort Myers Southwest Florida Reg to Ontario International. But we found flights with one or more stops from $426.
As of August 2025, there are no flights flying from Fort Myers Southwest Florida Reg to Ontario International.
The cheapest month to fly from Fort Myers Southwest Florida Reg to Ontario International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Fort Myers Southwest Florida Reg Airport to Ontario International Airport on Saturday, 30 August 2025.
No airlines currently offer direct flights between Fort Myers Southwest Florida Reg 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, Southwest Airlines offers the cheapest flight tickets to Ontario International.

Travelling from Southwest Florida International Airport (RSW) to Ontario International Airport (ONT): what you need to know

  • Ontario's timezone is UTC-7, which makes Ontario three hours behind Fort Myers.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your RSW to ONT flight.

  • You can expect longer lines in popular months like October. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a smart move.

  • Think about adding a stopover when booking your ticket from Southwest Florida International Airport to Ontario International Airport. Simply deselect 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Check out these options between RSW and ONT:

    • George Bush Intercontinental Airport

    • Dallas Love Field Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from Southwest Florida International Airport (RSW) to Ontario International Airport (ONT)

  • The lowest price we've seen for a one-way Southwest Florida International Airport to Ontario International Airport flight is $201. A return ticket is currently $426. Depending on the availability when you book, these fares could change.

  • Don't wait until the last moment. You're more likely to find cheap tickets from RSW to ONT if you book in advance. Airlines often have some excellent early bird deals.

  • The 'Whole month' search tool shows you the cheapest flights from Southwest Florida International Airport to Ontario International Airport throughout the month. It's a good way to find a bargain if your plans aren't set in stone.

  • You won't have to check back in every day to find out if fares have gone down when you create a Price Alert. We'll notify you as soon as a special offer becomes available on cheap flights from RSW to ONT.

  • Tailor your trip using filters. Choose your arrival and departure times, airlines and total journey duration. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Southwest Florida International Airport to Ontario International Airport.

Handy information about Southwest Florida International Airport (RSW)

  • RSW is located at 11000 Terminal Access Road.

  • When it comes to the on-time performance of Southwest Florida International Airport, data shows 77.32% of flights arrive within the expected timeframe.

  • Southwest Florida International Airport is around 23 kilometres from central Fort Myers. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 25 minutes or so to get there, depending on the traffic.

  • Get your trip off to a leisurely start by staying near RSW. Whether you've booked an early flight from Southwest Florida International Airport to Ontario International Airport or just don't like being rushed, these hotels have you covered:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • The address for ONT is 2900 E. Airport Drive.

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

  • It typically takes 1 hour 30 minutes when travelling by public transport.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Southwest Florida International Airport to Ontario International Airport is May, while August is the most popular. Choose the best time to visit Ontario based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Ontario is August, with temperatures ranging between 15ºC (59ºF) and 35ºC (95ºF). Lock in your flights from Southwest Florida International Airport to Ontario International Airport in this month if this is the type of weather you like.

  • January has average temperatures of between 4ºC (39ºF) and 23ºC (73ºF). Look for cheap tickets from RSW to ONT sometime then if you like cooler conditions.

Explore more of United States

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

  • Around 153 kilometres south of Ontario, San Diego is another essential stop in United States. Experience the best of this destination with a visit to San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

Plan the rest of your trip from Fort Myers to Ontario

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