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ONT - BIL

$181 Find cheap flights from Ontario to Billings

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 Billings departing on 9/5. 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
Wed 7/10
Wed 7/17

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Billings, 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 Billings, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Billings (ONT-BIL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Billings 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
4:28 pm - 11:29 pmONT-BIL
6h 01m1 stop
7:15 pm - 10:15 pmBIL-ONT
28h 00m2 stops
$340Alaska Airlines
Find Deal
Sat, Sep 14 - Sat, Sep 21
7:55 pm - 2:25 pmONT-BIL
17h 30m1 stop
7:14 pm - 11:59 pmBIL-ONT
5h 45m1 stop
$342Alaska Airlines
Find Deal
Mon, Jul 15 - Tue, Jul 16
4:28 pm - 11:29 pmONT-BIL
6h 01m1 stop
7:15 pm - 9:15 amBIL-ONT
15h 00m1 stop
$345Alaska Airlines
Find Deal
Sat, Sep 14 - Sat, Sep 21
6:00 am - 10:50 amONT-BIL
3h 50m1 stop
6:40 pm - 11:59 pmBIL-ONT
6h 19m1 stop
$348Delta
Find Deal
Sun, Jul 21 - Sat, Jul 27
8:20 pm - 11:02 pmONT-BIL
25h 42m1 stop
7:14 pm - 9:05 amBIL-ONT
14h 51m1 stop
$357Alaska Airlines
Find Deal
Tue, Jul 9 - Tue, Jul 16
4:24 pm - 11:02 pmONT-BIL
5h 38m1 stop
3:16 pm - 10:15 pmBIL-ONT
7h 59m1 stop
$365Alaska Airlines
Find Deal
Fri, Aug 16 - Thu, Aug 22
5:15 am - 1:24 pmONT-BIL
7h 09m1 stop
2:40 pm - 8:32 pmBIL-ONT
6h 52m1 stop
$413United Airlines
Find Deal
Sat, Sep 28 - Fri, Oct 4
9:35 am - 9:31 pmONT-BIL
10h 56m2 stops
1:58 pm - 10:27 pmBIL-ONT
9h 29m1 stop
$573American Airlines
Find Deal
Fri, Aug 16 - Thu, Aug 22
9:35 am - 9:31 pmONT-BIL
10h 56m2 stops
6:40 am - 4:11 pmBIL-ONT
10h 31m2 stops
$578American Airlines
Find Deal
Fri, Aug 16 - Thu, Aug 22
1:47 pm - 10:46 pmONT-BIL
7h 59m2 stops
7:00 am - 12:33 pmBIL-ONT
6h 33m1 stop
$605United Airlines
Find Deal
Tue, Jul 9 - Tue, Jul 16

Flights from Ontario to Billings - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Billings 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 Billings?

The average price of all flights from Ontario to Billings clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Billings on a Tuesday and more expensive on a Monday. On your return trip to Ontario, you should consider flying back on a Monday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Billings, 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 Billings is June, where tickets cost $249 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $708 and $587 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Billings, 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 Billings, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 87 days before departure.

Which airlines provide the cheapest flights from Ontario to Billings?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Ontario to Billings found by KAYAK users in the last 72 hours was for $340 on Alaska Airlines, followed by Delta ($348). One-way flight deals have also been found from as low as $181 on United Airlines and from $191 on Alaska Airlines.

Good to know

Low season

September

High season

August

Cheapest flight

$181
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Ontario to Billings

When to book flights from Ontario to Billings

Are your dates flexible? Find out the best times to travel from Ontario to Billings 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 Billings

  • What is the cheapest flight from Ontario to Billings?

    In the last 3 days, the lowest price for a flight from Ontario to Billings was $181 for a one-way ticket and $340 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to Billings. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Ontario to Billings?

    Ontario airport is called Ontario and the only airport in Billings is Billings Logan Intl.

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

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

  • Which airline alliances offer flights from Ontario to Billings?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Billings are Delta and United Airlines. With an average price for the route of $477 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $534 and an overall rating of 7.4.

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

    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 Billings.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings 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 Billings?

    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 Billings with an airline and back to Ontario with another airline. Booking your flights between Ontario and BIL 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 Billings?

    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 Billings 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 Billings

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Billings. 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 Billings? 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 10295 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.9Comfort
7.4Food
Airline reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

4.0 OkayBrooke, Jun 2024SFO - MSP
Read more about Delta reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

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).

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

On time take off…US cabins look tired and need of refresh!

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Book cheap flights from Ontario to Billings

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Billings found on KAYAK in the last 72 hours.
9/5Thu
1 stopUnited Airlines
6h 44mONT-BIL
$181
9/5Thu
1 stopAlaska Airlines
6h 36mONT-BIL
$191
9/5Thu
2 stopsAlaska Airlines
10h 59mONT-BIL
$196
6/23Sun
1 stopAlaska Airlines
6h 25mONT-BIL
$334
6/22Sat
1 stopAlaska Airlines
6h 12mONT-BIL
$336
6/22Sat
2 stopsAlaska Airlines
10h 27mONT-BIL
$401
6/23Sun
2 stopsAlaska Airlines
21h 01mONT-BIL
$592

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Last minute flights from Ontario to Billings

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 Billings that are departing in the next 10 days.
6/12Wed
multi-stopAlaska Airlines
5h 47mONT-BIL
6/14Fri
multi-stopAlaska Airlines
5h 45mBIL-ONT
$772
6/12Wed
multi-stopAmerican Airlines
7h 25mONT-BIL
6/13Thu
multi-stopAmerican Airlines
10h 12mBIL-ONT
$777
6/12Wed
multi-stopAmerican Airlines
10h 50mONT-BIL
6/14Fri
multi-stopAmerican Airlines
10h 12mBIL-ONT
$782
6/12Wed
multi-stopDelta
9h 02mONT-BIL
6/13Thu
multi-stopDelta
8h 56mBIL-ONT
$865
6/12Wed
multi-stopAmerican Airlines
10h 50mONT-BIL
6/13Thu
multi-stopAmerican Airlines
8h 51mBIL-ONT
$877
6/12Wed
multi-stopUnited Airlines
15h 27mONT-BIL
6/13Thu
multi-stopUnited Airlines
8h 47mBIL-ONT
$1,509

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Ontario - Billings Flights

Departure:

Ontario (ONT)United States

Destination:

Billings (BIL)United States

Return flight deals:

Billings - Ontario

Cabin classes: