HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
West Yellowstone

$295+ Cheap flights from Ontario to West Yellowstone (ONT - WYS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — WYS
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to West Yellowstone with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to West Yellowstone

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to West Yellowstone (WYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 16, 2025.

Round-trip from

$295
(Trip.com)
From Ontario to West Yellowstone
Search Deals

Find flight deals from Ontario to West Yellowstone

Cheapest flights from Ontario to West Yellowstone
Explore the most affordable flight options available from Ontario to West Yellowstone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/295:05 amONT - WYS
1 stop7h 15mUnited Airlines
mié. 10/81:55 pmWYS - ONT
1 stop7h 29mUnited Airlines
Deal found 9/15$295
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/195:10 amONT - WYS
1 stop7h 05mUnited Airlines
lun. 9/221:51 pmWYS - ONT
1 stop7h 52mUnited Airlines
Deal found 9/14$460
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/165:10 amONT - WYS
1 stop7h 05mUnited Airlines
lun. 9/221:51 pmWYS - ONT
1 stop23h 41mUnited Airlines
Deal found 9/15$506
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/305:05 amONT - WYS
1 stop7h 15mUnited Airlines
vie. 10/31:55 pmWYS - ONT
1 stop23h 56mUnited Airlines
Deal found 9/14$510
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/275:05 amONT - WYS
1 stop7h 15mUnited Airlines
dom. 9/281:55 pmWYS - ONT
1 stop7h 29mUnited Airlines
Deal found 9/14$698

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to West Yellowstone that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 16, 2025.
Use the filters below to find and compare flights from Ontario to West Yellowstone that are best for you.

Fly from

Ontario

Fly to

West Yellowstone

Route

Depart

Return

Price

OntarioWest Yellowstone

ONT - WYS

ONTWYS

Ontario

lun. 9/29

5:05 am-1:20 pm

1 stop7h 15m

West Yellowstone

mié. 10/8

1:55 pm-8:24 pm

1 stop7h 29m

$295

OntarioWest Yellowstone

ONT - WYS

ONTWYS

Ontario

mar. 9/30

5:05 am-1:20 pm

1 stop7h 15m

West Yellowstone

vie. 10/3

1:55 pm-12:51 pm

1 stop23h 56m

$510

OntarioWest Yellowstone

ONT - WYS

ONTWYS

Ontario

sáb. 9/27

5:05 am-1:20 pm

1 stop7h 15m

West Yellowstone

dom. 9/28

1:55 pm-8:24 pm

1 stop7h 29m

$698

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Ontario to West Yellowstone

Have a flexible travel schedule? Discover the best time to fly to West Yellowstone from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing West Yellowstone

Get insights into the airlines that provide service to West Yellowstone. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to West Yellowstone. Reviews last updated septiembre 16, 2025.
Peruse reviews from past customers who have flown with United Airlines from Ontario to West Yellowstone to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Related info for your journey

Find useful and relevant information for your journey from Ontario to West Yellowstone. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to West Yellowstone?

    There are many flights that can get you from Ontario to West Yellowstone in 7h 15m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 811 mi.

  • What is the cheapest airline to fly from Ontario to West Yellowstone round-trip?

    Our cheapest airline available from Ontario to West Yellowstone is United Airlines. Our recent data shows that you can find tickets from as low as $257 on this airline.

  • Can I find deals for flights from Ontario to West Yellowstone that include hotel bookings?

    Yes. In addition to deals on Ontario to West Yellowstone flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to West Yellowstone?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to West Yellowstone.

  • Can I find deals for business class flights from Ontario to West Yellowstone?

    Yes. Cheapflights offers flight deals from Ontario to West Yellowstone by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near West Yellowstone?

Book flights to West Yellowstone if you plan to visit one of these locations
Island Park

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to West Yellowstone

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Bozeman flights
San Francisco to Bozeman flights
Los Angeles to Kalispell flights
San Diego to Bozeman flights
Ontario to Bozeman flights
San Francisco to Kalispell flights
Sacramento to Bozeman flights
Los Angeles to Missoula flights
Ontario to Missoula flights
Burbank to Bozeman flights
San Francisco to Missoula flights
Santa Ana to Bozeman flights
Ontario to Kalispell flights
Sacramento to Billings flights
San Diego to Kalispell flights
Las Vegas to Bozeman flights
Oakland to Bozeman flights
San Jose to Bozeman flights
San Jose to Kalispell flights
Sacramento to Missoula flights
Santa Ana to Missoula flights
Fresno to Kalispell flights
Los Angeles to Billings flights
San Diego to Missoula flights
Burbank to Kalispell flights
San Francisco to Billings flights
Santa Rosa to Bozeman flights
Santa Ana to Kalispell flights
Long Beach to Bozeman flights
Reno to Missoula flights
San Diego to Billings flights
Oakland to Missoula flights
Sacramento to Kalispell flights
Fresno to Missoula flights
Los Angeles to Helena flights
Burbank to Missoula flights
Fresno to Billings flights
Oakland to Kalispell flights
Palm Springs to Bozeman flights
Palm Springs to Kalispell flights
Reno to Bozeman flights
San Jose to Missoula flights
Santa Barbara to Kalispell flights
Oakland to Billings flights
San Francisco to Helena flights
Oakland to Great Falls flights
San Diego to West Yellowstone flights
San Francisco to Great Falls flights
Ontario to Billings flights
Los Angeles to West Yellowstone flights

Top airline flying from Ontario to West Yellowstone

Discover the top airline that operate flights from Ontario to West Yellowstone. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$257Average$351FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.