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$420+ Cheap flights from Fort Smith to Ontario (FSM - ONT)

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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
FSM — ONT
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from Fort Smith to Ontario

Best flights from Fort Smith to Ontario
Discover carefully curated flight deals from Fort Smith to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2025.

This American Airlines deal was found by Cheapflights users on 12/21. 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 3/146:24 pmFSM - ONT
1 stop7h 35mAmerican Airlines
Sat 3/217:59 pmONT - FSM
2 stops11h 50mAmerican Airlines
Deal found 12/21$420
This American Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 4/206:43 pmFSM - ONT
1 stop6h 57mAmerican Airlines
Mon 4/2711:59 pmONT - FSM
1 stop7h 23mAmerican Airlines
Deal found 12/21$451

Find 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 December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$420
(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.
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From Fort Smith to Ontario
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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 December 21, 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 3/14

6:24 pm-11:59 pm

1 stop7h 35m

Ontario

Sat 3/21

7:59 pm-9:49 am

2 stops11h 50m

$420

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Mon 4/20

6:43 pm-11:40 pm

1 stop6h 57m

Ontario

Mon 4/27

11:59 pm-9:22 am

1 stop7h 23m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Fort Smith-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $150). Flying from Fort Smith to Ontario in December is currently the most expensive (average of $266). 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 December 21, 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
11,052 reviews

Entertainment

6.9

Overall

7.2

Food

6.4

Comfort

7.2

Crew

8.0

Boarding

7.5

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
11,052 reviews
American Airlines
7.2
Good
11,052 reviews

Entertainment

6.9

Overall

7.2

Food

6.4

Comfort

7.2

Crew

8.0

Boarding

7.5

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 7h 35m. 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.

  • 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 $150). Flying from Fort Smith to Ontario in December is currently the most expensive (average of $266). 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.

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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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$369Average$576FlexibilityNo cancel feeOn-time71%

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