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$231+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
FSM — ONT
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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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 August 16, 2025.

Round-trip from

$490
(American Airlines)

One-way from

$231
(American Airlines)
From Fort Smith to Ontario
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One-way flight from Fort Smith to Ontario
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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 August 16, 2025.

This American Airlines deal was found by Cheapflights users on 8/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/63:20 pmFSM - ONT
1 stop5h 34mAmerican Airlines
Fri 9/1210:53 amONT - FSM
1 stop4h 59mAmerican Airlines
Deal found 8/15$490
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:28 pmFSM - ONT
1 stop6h 20mAmerican Airlines
Tue 8/262:57 pmONT - FSM
1 stop5h 41mAmerican Airlines
Deal found 8/14$533
This American Airlines deal was found by Cheapflights users on 8/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:02 amFSM - ONT
1 stop5h 32mAmerican Airlines
Sat 12/2710:33 amONT - FSM
2 stops11h 08mAmerican Airlines
Deal found 8/15$548
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:00 amFSM - ONT
1 stop6h 05mAmerican Airlines
Sat 9/132:54 pmONT - FSM
1 stop5h 24mAmerican Airlines
Deal found 8/14$551
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:24 pmFSM - ONT
1 stop5h 52mAmerican Airlines
Sun 9/142:30 pmONT - FSM
1 stop7h 20mAmerican Airlines
Deal found 8/14$569

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 August 16, 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

Sat 9/6

3:20 pm-6:54 pm

1 stop5h 34m

Ontario

Fri 9/12

10:53 am-5:52 pm

1 stop4h 59m

$490

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Sat 8/23

6:28 pm-10:48 pm

1 stop6h 20m

Ontario

Tue 8/26

8:14 am-5:41 pm

1 stop7h 27m

$533

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Thu 9/11

6:00 am-10:05 am

1 stop6h 05m

Ontario

Sat 9/13

2:54 pm-10:18 pm

1 stop5h 24m

$551

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Fri 9/12

6:00 am-10:03 am

1 stop6h 03m

Ontario

Sat 9/13

8:15 am-5:52 pm

1 stop7h 37m

$551

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Tue 10/7

6:04 am-10:07 am

1 stop6h 03m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

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, August is the cheapest month in which you can book a flight from Fort Smith to Ontario (average of $246). Flying from Fort Smith to Ontario in March is currently the most expensive (average of $328). 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 August 16, 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
10,000 reviews

Crew

8.0

Boarding

7.5

Food

6.5

Comfort

7.2

Entertainment

6.9

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
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Food

6.5

Comfort

7.2

Entertainment

6.9

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.

  • 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, August is the cheapest month in which you can book a flight from Fort Smith to Ontario (average of $246). Flying from Fort Smith to Ontario in March is currently the most expensive (average of $328). 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

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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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$369Average$634FlexibilityNo cancel feeOn-time71%

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