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Cheap Flights from Ontario International (ONT) to Port Columbus (CMH)

Compare Ontario International to Port Columbus flight deals

Find the cheapest month or even day of the year to fly to Port Columbus

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Flight deals from Ontario International to Port Columbus

Looking for a cheap last-minute deal or the best return flight from Ontario International to Port Columbus? Find the lowest prices on one-way and return tickets right here.
Columbus.£239 per passenger.Departing Sat, 17 Jan, returning Wed, 21 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 17 Jan, arriving in Port Columbus.Inbound indirect flight with Southwest Airlines, departs from Port Columbus on Wed, 21 Jan, arriving in Ontario International.Price includes taxes and charges.From £239, select.
Columbus.£241 per passenger.Departing Tue, 3 Mar, returning Tue, 10 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 3 Mar, arriving in Port Columbus.Inbound indirect flight with Southwest Airlines, departs from Port Columbus on Tue, 10 Mar, arriving in Ontario International.Price includes taxes and charges.From £241, select.
Columbus.£253 per passenger.Departing Tue, 17 Feb, returning Tue, 24 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 17 Feb, arriving in Port Columbus.Inbound indirect flight with Southwest Airlines, departs from Port Columbus on Tue, 24 Feb, arriving in Ontario International.Price includes taxes and charges.From £253, select.
Columbus.£261 per passenger.Departing Thu, 29 Jan, returning Thu, 5 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 29 Jan, arriving in Port Columbus.Inbound indirect flight with Southwest Airlines, departs from Port Columbus on Thu, 5 Feb, arriving in Ontario International.Price includes taxes and charges.From £261, select.
Columbus.£269 per passenger.Departing Wed, 25 Feb, returning Mon, 2 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 25 Feb, arriving in Port Columbus.Inbound indirect flight with Southwest Airlines, departs from Port Columbus on Mon, 2 Mar, arriving in Ontario International.Price includes taxes and charges.From £269, select.
Columbus.£312 per passenger.Departing Wed, 15 Jul, returning Wed, 22 Jul.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Wed, 15 Jul, arriving in Port Columbus.Inbound indirect flight with Alaska Airlines, departs from Port Columbus on Wed, 22 Jul, arriving in Ontario International.Price includes taxes and charges.From £312, select.
Columbus.£314 per passenger.Departing Wed, 8 Apr, returning Sun, 12 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 8 Apr, arriving in Port Columbus.Inbound indirect flight with Frontier Airlines, departs from Port Columbus on Sun, 12 Apr, arriving in Ontario International.Price includes taxes and charges.From £314, select.
Columbus.£322 per passenger.Departing Wed, 15 Jul, returning Mon, 10 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 15 Jul, arriving in Port Columbus.Inbound indirect flight with Southwest Airlines, departs from Port Columbus on Mon, 10 Aug, arriving in Ontario International.Price includes taxes and charges.From £322, select.

Find the cheapest month to fly from Ontario International to Port Columbus

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Port Columbus flights are currently cheapest in January.
Dec
from £456
Jan
from £239
Feb
from £253
Mar
from £241
Apr
from £314
May
from £325
Jun
Find prices
Jul
from £312
Aug
Find prices
Sep
from £324
Oct
Find prices
Nov
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Ontario International to Port Columbus: Alternative routes

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

Ontario to Columbus: Flight information

The things to know before you go.
Cheapest flight found£239
Cheapest month to flyJanuary

Finding cheap flights from Ontario International to Port Columbus: Frequently asked questions

The best price we found for a return flight from Ontario International to Port Columbus is £239. 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 Port Columbus. But we found flights with one or more stops from £239.
As of December 2025, there are no flights flying from Ontario International to Port Columbus.
The cheapest month to fly from Ontario International to Port Columbus is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Port Columbus Airport on Saturday, 17 January 2026.
No airlines currently offer direct flights between Ontario International Airport and Port Columbus 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 Port Columbus 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 Columbus 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 Port Columbus.

Flying from Ontario International Airport (ONT) to John Glenn Columbus International Airport (CMH): what you need to know

  • Columbus's timezone is UTC-4, which makes Columbus three hours ahead of Ontario.

  • Get to the airport on time so you don't miss your ONT to CMH flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • You can expect bigger queues during popular months like August. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a smart move.

  • We make it a breeze to book a flight with a stopover. To see all your options for tickets from Ontario International Airport to John Glenn Columbus International Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit the city of your choice. Worthwhile stopovers between ONT and CMH include:

    • Harry Reid Airport (formerly McCarran Airport)

    • Phoenix Sky Harbour International Airport

    • Denver International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to John Glenn Columbus International Airport (CMH)

  • The cheapest price we've found for a one-way Ontario International Airport to John Glenn Columbus International Airport flight is £62. A return ticket is currently £239. Depending on the availability when you book, these fares can change.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from ONT to CMH if you book early. Airlines often have some great early bird deals.

  • If you're willing to be flexible with your trip dates, try using the 'Whole month' tool. It'll show you the lowest price across every month when searching for a flight from Ontario International Airport to John Glenn Columbus International Airport.

  • You don't need to check every day to see if fares have dropped when you create a Price Alert. We'll notify you as soon as the price changes on cheap flights from ONT to CMH.

  • Lock in the perfect flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Ontario International Airport to John Glenn Columbus International Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Ontario International Airport (ONT)

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

  • Ontario International Airport scores top marks for its on-time performance. 83.6% of flights that depart ONT arrive at their destination on time.

  • Central Ontario to Ontario International Airport is approximately 4 miles. Depending on traffic, it'll take you about 10 minutes to get there if you're driving, catching a cab or ride-sharing.

  • The trip when using public transport takes roughly 1 hour 30 minutes.

  • Get your holiday off to a stress-free start by staying near ONT. Whether you have an early flight from Ontario International Airport to John Glenn Columbus International Airport or want to avoid feeling rushed, these stays are the answer:

Arriving at John Glenn Columbus International Airport (CMH)

Getting from John Glenn Columbus International Airport (CMH) to central Columbus

  • You'll find CMH at 4600 International Gateway.

  • John Glenn Columbus International Airport to central Columbus has a drive time of about 10 minutes. It's approximately 8 miles away.

  • It'll take around 1 hour 5 minutes if you're travelling by public transport.

When to fly to John Glenn Columbus International Airport (CMH)

  • The quietest month for a flight from Ontario International Airport to John Glenn Columbus International Airport is April, while July is the busiest. Pick the best time to go to Columbus based on whether you prefer a more relaxed vibe or a faster pace.

  • The warmest month in Columbus is July, with temperatures ranging between 15ºC (59ºF) and 30ºC (86ºF). Lock in your flights from Ontario International Airport to John Glenn Columbus International Airport in this month if you enjoy this type of weather.

  • If you like cooler conditions, look for a cheap ticket from ONT to CMH in January. Temperatures average between -11ºC (12ºF) and 6ºC (43ºF) then.

Explore more of United States

  • You've visited Columbus, now it's time to explore other parts of United States. Travel about 280 miles north-west to Chicago to tick off its leading attractions. From Millennium Park to Art Institute of Chicago and LandShark Beer Garden at Navy Pier, you'll have a packed itinerary ahead.

  • Around 170 miles west of Columbus, Indianapolis is another essential stop in United States. Experience this destination's highlights firsthand at The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Plan the rest of your trip from Ontario to Columbus

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