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ONT - LEX

$275 Find cheap flights from Ontario to Lexington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Lexington departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 6/10
Mon 6/17

Search hundreds of travel sites at once for deals on flights to Lexington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Lexington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Lexington, as well as popular online travel agencies
In the last 7 days travelers have searched 43,156,178 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Lexington (ONT-LEX)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Lexington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:45 pm - 11:51 pmONT-LEX
8h 06m1 stop
3:35 pm - 7:22 pmLEX-ONT
6h 47m1 stop
$276Delta
Find Deal
Sat, Sep 21 - Wed, Sep 25
12:45 pm - 11:51 pmONT-LEX
8h 06m1 stop
3:35 pm - 11:51 pmLEX-ONT
11h 16m2 stops
$365Delta
Find Deal
Sat, Sep 21 - Wed, Sep 25
12:50 pm - 11:55 pmONT-LEX
8h 05m1 stop
6:26 pm - 11:00 pmLEX-ONT
7h 34m1 stop
$377Delta
Find Deal
Thu, Jun 6 - Sun, Jun 23
6:45 pm - 11:42 amONT-LEX
13h 57m2 stops
12:30 pm - 9:02 pmLEX-ONT
11h 32m2 stops
$454United Airlines
Find Deal
Sat, Sep 21 - Wed, Sep 25
10:00 pm - 10:10 amONT-LEX
9h 10m2 stops
6:26 pm - 11:00 pmLEX-ONT
7h 34m1 stop
$508Delta
Find Deal
Thu, Jun 6 - Sun, Jun 23
2:50 pm - 11:53 pmONT-LEX
6h 03m1 stop
8:22 pm - 11:56 pmLEX-ONT
6h 34m1 stop
$541American Airlines
Find Deal
Fri, May 31 - Mon, Jun 3
5:15 am - 2:49 pmONT-LEX
6h 34m1 stop
9:36 am - 12:33 pmLEX-ONT
5h 57m1 stop
$587United Airlines
Find Deal
Tue, May 21 - Mon, May 27
12:53 pm - 11:53 pmONT-LEX
8h 00m2 stops
5:51 am - 9:40 amLEX-ONT
6h 49m1 stop
$643American Airlines
Find Deal
Fri, May 31 - Mon, Jun 3
4:24 pm - 10:32 amONT-LEX
15h 08m2 stops
11:13 am - 7:25 pmLEX-ONT
11h 12m2 stops
$1,176Alaska Airlines
Find Deal
Sun, Jul 28 - Thu, Aug 1
4:24 pm - 10:59 amONT-LEX
15h 35m2 stops
11:24 am - 11:59 pmLEX-ONT
15h 35m2 stops
$1,183Alaska Airlines
Find Deal
Wed, Jun 19 - Sun, Jun 23

Flights from Ontario to Lexington - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Lexington to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Lexington?

The average price of all flights from Ontario to Lexington clicked on KAYAK for each day over the last 12 months.
For Ontario to Lexington, Friday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Lexington back to Ontario, the best deals are generally found on Saturday, with Monday being the most expensive.

What is the cheapest month to fly from Ontario to Lexington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Lexington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Lexington is January, where tickets cost $383 on average. On the other hand, the most expensive months are October and November, where the average cost of tickets is $587 and $536 respectively.

How far in advance should I book a flight from Ontario to Lexington?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Lexington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Lexington, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 48 days before departure.

Which airlines provide the cheapest flights from Ontario to Lexington?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Lexington from Ontario were found on Delta ($275) and United Airlines ($312), and the lowest round-trip tickets were found on Delta ($276) and United Airlines ($454).

Good to know

Low season

January

High season

June

Cheapest flight

$275
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Ontario to Lexington

When to book flights from Ontario to Lexington

Are your dates flexible? Find out the best times to travel from Ontario to Lexington based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Lexington

  • What is the cheapest flight from Ontario to Lexington?

    In the last 3 days, the lowest price for a flight from Ontario to Lexington was $275 for a one-way ticket and $276 for a round-trip.

  • Do I need a passport to fly between Ontario and Lexington?

    No

  • Which aircraft models fly most regularly from Ontario to Lexington?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Lexington?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Lexington, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Lexington, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Lexington are Delta and American Airlines. With an average price for the route of $446 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $535 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Ontario to Lexington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Lexington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Lexington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lexington from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Lexington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lexington with an airline and back to Ontario with another airline. Booking your flights between Ontario and LEX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Lexington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lexington from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Ontario to Lexington

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Lexington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Lexington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10751 reviews
8.2Boarding
7.4Food
7.9Comfort
8.6Crew
8.0Entertainment
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

I guess they don’t serve drinks on planes anymore

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

Flight From PHX to CVG was on time, very professional staff

Book cheap flights from Ontario to Lexington

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Lexington found on KAYAK in the last 72 hours.
5/16Thu
1 stopDelta
8h 05mONT-LEX
$275
6/22Sat
1 stopUnited Airlines
14h 05mONT-LEX
$312
7/31Wed
1 stopUnited Airlines
13h 55mONT-LEX
$342
6/10Mon
2 stopsUnited Airlines
20h 21mONT-LEX
$344
6/10Mon
1 stopUnited Airlines
24h 55mONT-LEX
$362
8/3Sat
1 stopAmerican Airlines
8h 49mONT-LEX
$378
5/23Thu
1 stopAmerican Airlines
8h 03mONT-LEX
$384
6/19Wed
2 stopsUnited Airlines
8h 14mONT-LEX
$1,014
6/19Wed
1 stopAmerican Airlines
14h 59mONT-LEX
$1,431

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Last minute flights from Ontario to Lexington

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Lexington that are departing in the next 10 days.
5/16Thu
multi-stopDelta
8h 25mONT-LEX
5/20Mon
multi-stopDelta
7h 22mLEX-ONT
$413
5/16Thu
multi-stopDelta
8h 25mONT-LEX
5/20Mon
multi-stopDelta
7h 22mLEX-ONT
$546
5/16Thu
multi-stopAmerican Airlines
8h 57mONT-LEX
5/19Sun
multi-stopAmerican Airlines
8h 51mLEX-ONT
$645
5/16Thu
multi-stopAmerican Airlines
11h 23mONT-LEX
5/19Sun
multi-stopAmerican Airlines
8h 51mLEX-ONT
$652
5/12Sun
multi-stopUnited Airlines
6h 34mONT-LEX
5/15Wed
multi-stopUnited Airlines
13h 49mLEX-ONT
$743
5/15Wed
multi-stopAmerican Airlines
8h 57mONT-LEX
5/19Sun
multi-stopAmerican Airlines
8h 51mLEX-ONT
$766
5/16Thu
multi-stopAmerican Airlines
11h 23mONT-LEX
5/19Sun
multi-stopAmerican Airlines
11h 11mLEX-ONT
$773
5/12Sun
multi-stopAmerican Airlines
8h 57mONT-LEX
5/15Wed
multi-stopAmerican Airlines
8h 51mLEX-ONT
$775
5/12Sun
multi-stopAmerican Airlines
8h 03mONT-LEX
5/15Wed
multi-stopAmerican Airlines
8h 51mLEX-ONT
$777
5/12Sun
multi-stopUnited Airlines
13h 58mONT-LEX
5/15Wed
multi-stopUnited Airlines
11h 38mLEX-ONT
$808

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Ontario - Lexington Flights

Departure:

Ontario (undefined)United States

Destination:

Lexington (LEX)United States

Return flight deals:

Lexington - Ontario

Cabin classes: