HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$368+ Cheap flights from Fort Smith to Ontario (FSM - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
FSM — ONT
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Fort Smith to Ontario 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 Fort Smith to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Fort Smith (FSM) to Ontario (ONT). 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$434
(American Airlines)

One-way from

$368
(American Airlines)
Provider with most accurate pricing for Fort Smith-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Fort Smith-Ontario flights.
Search Deals
From Fort Smith to Ontario
Search Deals
One-way flight from Fort Smith to Ontario
Search Deals

Find flight deals from Fort Smith to Ontario

Cheapest flights from Fort Smith to Ontario
Explore the most affordable flight options available from Fort Smith to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This American Airlines deal was found by Cheapflights users on 10/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:28 pmFSM - ONT
1 stop6h 00mAmerican Airlines
Tue 12/3011:59 pmONT - FSM
1 stop7h 47mAmerican Airlines
Deal found 10/18$434
This American Airlines deal was found by Cheapflights users on 10/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:28 pmFSM - ONT
1 stop6h 00mAmerican Airlines
Wed 12/3110:47 amONT - FSM
1 stop5h 00mAmerican Airlines
Deal found 10/18$470
This American Airlines deal was found by Cheapflights users on 10/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:17 pmFSM - ONT
1 stop5h 57mAmerican Airlines
Wed 12/3110:47 amONT - FSM
1 stop5h 00mAmerican Airlines
Deal found 10/19$507
This American Airlines deal was found by Cheapflights users on 10/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:28 pmFSM - ONT
1 stop6h 00mAmerican Airlines
Sat 12/2711:59 pmONT - FSM
1 stop7h 47mAmerican Airlines
Deal found 10/19$543

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fort Smith to Ontario 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 October 20, 2025.
Use the filters below to find and compare flights from Fort Smith to Ontario that are best for you.

Fly from

Fort Smith

Fly to

Ontario

Route

Depart

Return

Price

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Wed 12/17

6:28 pm-10:28 pm

1 stop6h 00m

Ontario

Tue 12/30

11:59 pm-9:46 am

1 stop7h 47m

$434

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Wed 12/17

6:28 pm-10:28 pm

1 stop6h 00m

Ontario

Wed 12/31

10:47 am-5:47 pm

1 stop5h 00m

$470

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Sat 2/28

6:32 pm-9:57 pm

1 stop5h 25m

Ontario

Tue 3/3

11:55 pm-9:22 am

1 stop7h 27m

$495

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Wed 12/17

6:00 am-11:53 am

1 stop7h 53m

$368

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Thu 12/18

6:17 pm-10:14 pm

1 stop5h 57m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Compare providers for flights from Fort Smith to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Fort Smith to Ontario in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Fort Smith-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Fort Smith-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Fort Smith-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Fort Smith-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Fort Smith-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Fort Smith to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Fort Smith 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.

Cheapflights Insights

Everything you need to know about your flight from Fort Smith to Ontario

What is the cheapest month to book a flight from Fort Smith to Ontario?

Currently, April is the cheapest month in which you can book a flight from Fort Smith to Ontario (average of $149). Flying from Fort Smith to Ontario in February is currently the most expensive (average of $243). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated October 20, 2025.
Read reviews from past customers who have flown American Airlines from Fort Smith to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,024 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
American Airlines
7.2
Good
11,024 reviews
American Airlines
7.2
Good
11,024 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

Related info for your journey

Find useful and relevant information for your journey from Fort Smith to Ontario. 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 Fort Smith to Ontario?

    Airlines like American Airlines fly from Fort Smith to Ontario in about 6h. The time it takes to get you to your destination can typically vary by up to . The distance between Fort Smith and Ontario is about 1319 mi.

  • What is the cheapest airline to fly from Fort Smith to Ontario round-trip?

    Flying on American Airlines is currently your cheapest option to Ontario, with prices starting at $369.

  • Can I find deals for flights from Fort Smith to Ontario that include hotel bookings?

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

  • How can I find direct flights from Fort Smith to Ontario?

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

  • Can I find deals for business class flights from Fort Smith to Ontario?

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

  • What is the cheapest month to book a flight from Fort Smith to Ontario?

    Currently, April is the cheapest month in which you can book a flight from Fort Smith to Ontario (average of $149). Flying from Fort Smith to Ontario in February is currently the most expensive (average of $243). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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 Fort Smith to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Memphis to Las Vegas flights
Memphis to Los Angeles flights
Fayetteville to Las Vegas flights
Little Rock to Las Vegas flights
Fayetteville to Los Angeles flights
Fayetteville to Ontario flights
Fayetteville to Santa Ana flights
Memphis to Ontario flights
Little Rock to Los Angeles flights
Fayetteville to San Diego flights
Memphis to San Diego flights
Memphis to San Francisco flights
Fayetteville to San Francisco flights
Memphis to San Jose flights
Memphis to Santa Ana flights
Fayetteville to San Jose flights
Fayetteville to Sacramento flights
Little Rock to Ontario flights
Memphis to Burbank flights
Little Rock to San Francisco flights
Fayetteville to Burbank flights
Little Rock to Santa Ana flights
Little Rock to San Diego flights
Memphis to Sacramento flights
Memphis to Fresno flights
Fayetteville to Palm Springs flights
Fayetteville to Reno flights
Memphis to Palm Springs flights
Fayetteville to Fresno flights
Little Rock to Burbank flights
Little Rock to Palm Springs flights
Memphis to Long Beach flights
Fayetteville to Long Beach flights
Memphis to Monterey flights
Little Rock to San Jose flights
Little Rock to Fresno flights
Memphis to Oakland flights
Little Rock to Sacramento flights
Little Rock to Bakersfield flights
Fayetteville to Medford flights
Memphis to Reno flights
Fayetteville to Bakersfield flights
Little Rock to Reno flights
Fort Smith to Los Angeles flights
Fort Smith to Las Vegas flights
Little Rock to San Luis Obispo flights
Fayetteville to Santa Barbara flights
Texarkana to Las Vegas flights
Fort Smith to Fresno flights

Top airline flying from Fort Smith to Ontario

Discover the top airline that operate flights from Fort Smith to Ontario. 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$369Average$639FlexibilityNo cancel feeOn-time71%

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.