RDU - ONT

$109 Find Cheap Flights from Raleigh to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$255
Typical prices: $338-$519
Frontier
Tue 11/6Sat 11/10
RDU - ONT • 1 stop
Cheapest one-way
$112
Typical prices: $178-$300
Frontier
Sun 11/4
RDU - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Raleigh and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
16 weeks
in advance
Our data shows that travelers who book at least 16 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 45% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Chicago O'Hare Intl (ORD)
Cheapest • Avg $331 (round-trip)
Phoenix Sky Harbor Intl (PHX)
Shortest trip • 7h 04m (one-way)
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Insights
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We hope you love your trip to Ontario!

Cheap Flights from Raleigh to Ontario (RDU-ONT)

 

Cheap flights from Raleigh to Ontario with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Fri, Nov 6 - Tue, Nov 10
Frontier Logo
7:37 pm - 10:42 amRDU  Raleigh-Durham-ONT Ontario
18h 05m1 stop Denver Intl
Frontier Logo
11:52 am - 5:38 pmONT  Ontario-RDU Raleigh-Durham
26h 46m1 stop Denver Intl
$255Frontier
Sat, Dec 5 - Tue, Dec 8
Frontier Logo
5:01 pm - 10:17 pmRDU  Raleigh-Durham-ONT Ontario
8h 16m1 stop Denver Intl
Frontier Logo
11:30 am - 4:00 pmONT  Ontario-RDU Raleigh-Durham
25h 30m1 stop Denver Intl
$262Frontier
Sat, Nov 14 - Tue, Nov 24
American Airlines Logo
5:38 pm - 10:12 pmRDU  Raleigh-Durham-ONT Ontario
7h 34m1 stop Charlotte Douglas
American Airlines Logo
10:30 pm - 8:17 amONT  Ontario-RDU Raleigh-Durham
6h 47m1 stop Charlotte Douglas
$323American Airlines
Mon, Nov 23 - Thu, Nov 26
American Airlines Logo
6:20 pm - 11:20 pmRDU  Raleigh-Durham-ONT Ontario
8h 00m1 stop Charlotte Douglas
American Airlines Logo
10:30 pm - 8:17 amONT  Ontario-RDU Raleigh-Durham
6h 47m1 stop Charlotte Douglas
$323American Airlines
Tue, Dec 8 - Sat, Dec 12
Delta Logo
1:56 pm - 8:58 pmRDU  Raleigh-Durham-ONT Ontario
10h 02m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:05 am - 6:54 pmONT  Ontario-RDU Raleigh-Durham
8h 49m1 stop Atlanta Hartsfield-Jackson
$323Delta
Tue, Dec 8 - Wed, Dec 9
Delta Logo
3:06 pm - 8:58 pmRDU  Raleigh-Durham-ONT Ontario
8h 52m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:20 pm - 12:24 amONT  Ontario-RDU Raleigh-Durham
9h 04m1 stop Atlanta Hartsfield-Jackson
$323Delta
Sat, Dec 5 - Sat, Dec 5
Southwest Logo
6:00 am - 10:05 amRDU  Raleigh-Durham-ONT Ontario
7h 05m1 stop Denver Intl
Southwest Logo
11:20 am - 8:35 pmONT  Ontario-RDU Raleigh-Durham
6h 15m1 stop Denver Intl
$324Southwest
Sat, Oct 31 - Thu, Nov 5
Multiple Airlines Logo
5:55 pm - 12:16 pmRDU  Raleigh-Durham-ONT Ontario
21h 21m2 stops New Orleans Louis Armstrong Las Vegas Harry Reid Intl
Multiple Airlines Logo
11:52 am - 6:39 pmONT  Ontario-RDU Raleigh-Durham
27h 47m1 stop Denver Intl
$326Multiple Airlines
Sat, Dec 5 - Tue, Dec 8
Southwest Logo
6:20 am - 12:50 pmRDU  Raleigh-Durham-ONT Ontario
9h 30m2 stops Nashville Intl Phoenix Sky Harbor Intl
Southwest Logo
7:50 am - 6:05 pmONT  Ontario-RDU Raleigh-Durham
7h 15m1 stop Austin Bergstrom
$330Southwest
Mon, Feb 22 - Tue, Mar 2
Multiple Airlines Logo
8:20 am - 5:55 pmRDU  Raleigh-Durham-ONT Ontario
12h 35m2 stops Memphis Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:30 am - 3:56 pmONT  Ontario-RDU Raleigh-Durham
30h 26m1 stop Denver Intl
$343Multiple Airlines

Price, demand and travel trends for Raleigh to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Raleigh to Ontario?

Round-trip flights from Raleigh to Ontario typically range from $338 to $519. The lowest price found in the past 5 days was $255, on Frontier.

What's the cheapest day of the week to fly from Raleigh to Ontario?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Raleigh to Ontario. It’s 15% cheaper than the average day, while Friday is the most expensive, with prices 11% higher.

What’s the cheapest month to fly from Raleigh to Ontario?

•January is the cheapest month to fly from Raleigh to Ontario at $238 round-trip.
•September ($586) and December ($556) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 146% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Raleigh to Ontario the cheapest?

Flights from Raleigh to Ontario are cheapest 16 weeks before departure. Booking in this window typically costs about 37% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Raleigh to Ontario flights

Low season

September

Cheapest flight

$112
Beat the crowds with an average 40% drop in travelers.
The most popular month to fly with an average 34% increase in travelers.
One-way flight from Raleigh to Ontario

When to book flights from Raleigh to Ontario

Are your dates flexible? Find out the best times to travel from Raleigh to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Raleigh to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Raleigh to Ontario?

    Two cabin classes are available on flights from Raleigh to Ontario:

    • Economy Class
    • First Class

  • How long is a flight from Raleigh to Ontario?

    A nonstop flight from Raleigh to Ontario takes 00m, covering 2,185 miles.

  • Do I need a passport to fly from Raleigh to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Raleigh to Ontario flight?

    Round-trip flights from Raleigh to Ontario range from $338 to $519, with an average of $431 over the past 12 months. Anything below $338 counts as a good deal.

  • How expensive are last-minute Raleigh to Ontario flights?

    Last-minute fares on this route (booked within two weeks of departure) run 18% above the $431 route average. Book 16 weeks before departure for the lowest fares.

  • Have flight prices from Raleigh to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $255 to $1,950. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from Raleigh to Ontario looking right now?

    One-way fares from Raleigh to Ontario are currently lower than usual. Average one-way flight prices are about $182, which is 17% below the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

  • Which airports can I use when flying from Raleigh to Ontario?

    Flights from Raleigh to Ontario usually depart from Raleigh-Durham (RDU) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Raleigh to Ontario pass through?

    One-stop flights from Raleigh to Ontario most commonly connect through:

    • Denver Intl (DEN) - 36% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 16% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 15% of one-stop connections
    • Charlotte Douglas (CLT) - 10% of one-stop connections

  • Can I save money by using flexible dates for flights from Raleigh to Ontario?

    Yes. Flexible dates can save you up to 24% on flights from Raleigh to Ontario. Wednesday is the cheapest departure day at $367 round-trip on average, while Friday is the most expensive at $479, a difference of $112.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Raleigh to Ontario?

    Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 7h 04m, compared with 7h 12m via Charlotte Douglas (CLT) and 7h 20m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Raleigh and Ontario?

    Ontario is 3 hours behind Raleigh (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Raleigh to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $367, about $112 less than Friday fares (23% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 37% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Raleigh to Ontario trip for January. Fares historically average $238 round-trip in that month - typically $348 less than the most expensive month, which is September (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • La Quinta Inn & Suites by Wyndham Ontario Airport

More options for your flight from Raleigh to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario