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356 € Cheap Flights from Ontario International to Lexington Blue Grass

Compare Ontario International to Lexington Blue Grass flight deals

Find the cheapest month or even day of the year to fly to Lexington Blue Grass

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Flight deals from Ontario International to Lexington Blue Grass

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Lexington Blue Grass Airport? If you want to travel next month, return fares start from 411 €. Find the lowest prices on one-way and return tickets right here.
Lexington.356 € per passenger.Departing Fri, 28 Aug, returning Sun, 13 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Fri, 28 Aug, arriving in Lexington Blue Grass.Inbound indirect flight with Delta, departs from Lexington Blue Grass on Sun, 13 Sep, arriving in Ontario International.Price includes taxes and charges.From 356 €, select.
Lexington.360 € per passenger.Departing Sat, 30 May, returning Wed, 3 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Sat, 30 May, arriving in Lexington Blue Grass.Inbound indirect flight with Delta, departs from Lexington Blue Grass on Wed, 3 Jun, arriving in Ontario International.Price includes taxes and charges.From 360 €, select.
Lexington.411 € per passenger.Departing Mon, 15 Jun, returning Sun, 21 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Mon, 15 Jun, arriving in Lexington Blue Grass.Inbound indirect flight with Delta, departs from Lexington Blue Grass on Sun, 21 Jun, arriving in Ontario International.Price includes taxes and charges.From 411 €, select.
Lexington.574 € per passenger.Departing Sun, 5 Jul, returning Sat, 25 Jul.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Sun, 5 Jul, arriving in Lexington Blue Grass.Inbound indirect flight with Allegiant Air, departs from Lexington Blue Grass on Sat, 25 Jul, arriving in Ontario International.Price includes taxes and charges.From 574 €, select.

Find the cheapest month to fly from Ontario International to Lexington Blue Grass

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Lexington Blue Grass flights are currently cheapest in June.
May
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Jun
from 411 €
Jul
from 574 €
Aug
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Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Ontario International to Lexington Blue Grass: Alternative routes

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

Lexington Blue Grass

9km from central Lexington
ClosestCheapest
from 356 €
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Ontario to Lexington: Flight information

The things to know before you go.
Cheapest flight found356 €
Cheapest month to flyAugust

Finding cheap flights from Ontario International to Lexington Blue Grass: Frequently asked questions

The best price we found for a return flight from Ontario International to Lexington Blue Grass is 356 €. 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 Lexington Blue Grass. But we found flights with one or more stops from 356 €.
As of May 2026, there are no flights flying from Ontario International to Lexington Blue Grass.
The cheapest month to fly from Ontario International to Lexington Blue Grass 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 Lexington Blue Grass Airport on Friday, 28 August 2026.
No airlines currently offer direct flights between Ontario International Airport and Lexington Blue Grass 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 Lexington Blue Grass 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 Lexington is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Lexington Blue Grass.

Flying from Ontario International Airport (ONT) to Blue Grass Airport (LEX): what you need to know

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

  • Travelling during a peak month such as August? Public holidays and other high seasons can result in longer queues at check-in and security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • Think about adding a stopover when booking your ticket from Ontario International Airport to Blue Grass Airport. Just deselect 'Direct flights only' to break up your journey, or enjoy a detour to a new and interesting place. Check out these options between ONT and LEX:

    • Denver International Airport

    • Dallas/Fort Worth International Airport

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Blue Grass Airport (LEX)

  • 150 € is currently the best price for a one-way Ontario International Airport to Blue Grass Airport flight. Return flights start at 356 €. These fares may change based on demand and availability.

  • It's a good idea to book as early as possible if you're hoping to get cheap tickets from ONT to LEX. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

  • If you can be flexible with your trip dates, use the 'Whole month' search tool. It'll show you the lowest price across the month when searching for a flight from Ontario International Airport to Blue Grass Airport.

  • There's no need to check every day to find out if fares have dropped when you create a Price Alert. We'll update you as soon as there's a better deal on cheap flights from ONT to LEX.

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

Handy information about Ontario International Airport (ONT)

  • ONT's address is 2900 E. Airport Drive.

  • Ontario International Airport maintains a strong on-time performance, reducing the likelihood of delays. Departures from ONT arrive at their destination as scheduled 83.6% of the time.

  • Ontario International Airport is about 6 kilometres from central Ontario. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 10 minutes or so to get there, depending on the traffic.

  • You can expect a journey time of roughly 1 hour 30 minutes when using public transport.

  • Have an early flight from Ontario International Airport to Blue Grass Airport? Avoid the stress of rushing to the airport (and get some extra shut-eye) by picking one of these stays close to ONT:

Arriving at Blue Grass Airport (LEX)

Getting from Blue Grass Airport (LEX) to central Lexington

  • The address for LEX is 4000 Terminal Drive, Suite 206.

  • Blue Grass Airport to central Lexington has a drive time of about 20 minutes. It's approximately 13 kilometres away.

  • It typically takes 1 hour 10 minutes if you're travelling by public transport.

When to fly to Blue Grass Airport (LEX)

  • The quietest month for a flight from Ontario International Airport to Blue Grass Airport is February, while July is the busiest. Choose the ideal time to visit Lexington based on whether you prefer a more relaxed vibe or a faster pace.

  • Lock in your flight from Ontario International Airport to Blue Grass Airport for July if you'd like to go to Lexington during its warmest month. You can expect temperatures of between 17ºC (63ºF) and 32ºC (90ºF).

  • Look for cheap tickets from ONT to LEX in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -8ºC (18ºF) and 8ºC (46ºF) on average.

Explore more of United States

  • Lexington has its own special appeal, but there are so many other parts of United States just waiting to be discovered. About 257 kilometres north-east of Lexington, a trip to Columbus will keep your itinerary packed. Start with leading sights like Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • If there's time to check out another great destination in United States, consider Indianapolis, roughly 241 kilometres north-west of Lexington. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are among its highlights.

Plan the rest of your trip from Ontario to Lexington

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