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CA $516 Cheap Flights from Ontario Intl. Airport (ONT) to Williston (XWA)

View CA $516 flight on Wed, Sep 9, 2026Opens in a new window

Popular airlines from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)

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Cheap flights from Ontario Intl. Airport (ONT) to Williston (XWA)

Prices were available within the past 7 days and start at CA $516 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) cost?
You can find one-way and return flights from ONT to XWA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ONT to XWA ticket fares go up or down.
What is the cheapest month to fly from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
The cheapest months to fly from ONT to XWA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
Enter ONT to XWA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
United is one of the cheapest airlines offering connecting return flights from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.), with tickets starting from around CA$550 for flights that can be booked for departure within the next year. These flights typically include a layover in San Francisco Intl. (SFO). Prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
To find a cheap flight from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
There are approximately 6 connecting flights per day from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.). Some common connection points include Denver Intl. (DEN), Seattle - Tacoma Intl. (SEA), and Salt Lake City Intl. (SLC).
What is the earliest flight from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
The earliest flight from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) typically departs around 5:00 AM. This flight is operated by United. This is a seasonal service, active in February and May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
You'll find the most flights from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) on Saturdays, with around 8 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United and Delta. Flight schedules are fairly consistent throughout the week, so you'll have several flight options regardless of your travel day.
What are the most popular departure times for flights from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
The most popular departure times for flights from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) are typically between 12pm and 3pm. Many major carriers, including United and Delta, offer flights during this window. Many travellers prefer this time as it allows for a morning start and an afternoon arrival, giving you time to settle in at your destination.
How long does it take to fly from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
There are no nonstop flights from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.). The distance between these two airports is approximately 1,952 kilometres. If you're flying with one stop, your journey will typically take around 6 hours 48 minutes. Flights with two or more stops usually take longer, averaging about 14 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and weather conditions.
Can you fly business or first class from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
You can fly first class between ONT and XWA. First class cabins are available on United.
How do I earn miles on a Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) flight with Expedia?
It's easy to earn miles on a Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Williston, ND (XWA) from Ontario Intl. Airport (ONT)?
If you're planning to travel to Williston from Los Angeles - Ontario Intl. (ONT), you can fly directly into Basin Intl. (XWA) which offers international flights and connections. Some flights may connect through major hubs like San Francisco Intl. (SFO), Seattle - Tacoma Intl. (SEA), or Salt Lake City Intl. (SLC) before reaching Williston. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) at the last minute?
Typically, booking a last minute flight from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) flight and hotel package?
Securing a Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.)?
If you booked your Ontario Intl. Airport (ONT) to Williston, ND (XWA-Basin Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Basin Intl.
Distance
1940 km

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Los Angeles to Williston Flights

The easy way to book your flights from Ontario Intl. Airport to Williston 

With Expedia, it’s simple to find and book flights to Williston from Ontario Intl. Airport whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 1 airlines that cover this route. There are nonstop flights to Basin Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario Intl. Airport to Williston today, tomorrow, or this week.  

 

Save dollars with cheap flights from Ontario Intl. Airport, ONT to Basin Intl., XWA 

Sort your search results by price to find great deals on your flight from Ontario Intl. Airport to Williston—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Williston from Ontario Intl. Airport currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Williston  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Williston from Ontario Intl. Airport 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Williston with Expedia today.

Los Angeles to Williston Flights

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