$433+ Cheap flights from Ontario to Fort Smith (ONT - FSM)
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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSM
Oct 3 — Oct 101
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Fort Smith 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 Fort Smith
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to Fort SmithExplore the most affordable flight options available from Ontario to Fort Smith. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
Explore the most affordable flight options available from Ontario to Fort Smith. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
This American Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 9/298:25 am -
1 stop6h 18m
Sat 10/36:00 am -
1 stop7h 47m
Deal found 9/1![American Airlines logo]()
$524
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/152:22 pm -
1 stop6h 13m
Sat 9/196:00 am -
1 stop7h 47m
Deal found 8/31![American Airlines logo]()
$563
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 9/252:22 pm -
1 stop6h 13m
Fri 10/25:16 pm -
1 stop7h 21m
Deal found 9/2![American Airlines logo]()
$599
This American Airlines deal was found by Cheapflights users on 9/1. 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 9/167:20 am -
1 stop7h 23m
Sun 9/205:16 pm -
1 stop8h 20m
Deal found 9/1![American Airlines logo]()
$610
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/2312:37 pm -
1 stop7h 58m
Sat 9/2610:06 am -
2 stops10h 11m
Deal found 8/31![American Airlines logo]()
$679
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/212:22 pm -
1 stop6h 13m
Fri 9/255:16 pm -
1 stop7h 21m
Deal found 9/2![American Airlines logo]()
$703
Best flights from Ontario to Fort SmithDiscover carefully curated flight deals from Ontario to Fort Smith that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
Discover carefully curated flight deals from Ontario to Fort Smith that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/2312:37 pm -
1 stop7h 58m
Sat 9/265:16 pm -
1 stop7h 21m
Deal found 8/31![American Airlines logo]()
$563
This American Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 9/298:25 am -
1 stop6h 18m
Sat 10/36:00 am -
2 stops14h 17m
Deal found 9/1![American Airlines logo]()
$565
This American Airlines deal was found by Cheapflights users on 8/29. 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.
Fri 9/2512:37 pm -
1 stop7h 58m
Fri 10/210:06 am -
1 stop5h 19m
Deal found 8/29![American Airlines logo]()
$599
This American Airlines deal was found by Cheapflights users on 9/1. 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 9/167:20 am -
1 stop7h 23m
Sun 9/205:16 pm -
1 stop8h 20m
Deal found 9/1![American Airlines logo]()
$610
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/151:04 pm -
2 stops7h 31m
Sat 9/195:16 pm -
1 stop7h 21m
Deal found 8/31![American Airlines logo]()
$701
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/212:22 pm -
1 stop6h 13m
Fri 9/255:16 pm -
1 stop7h 21m
Deal found 9/2![American Airlines logo]()
$703
Last-minute flights from Ontario to Fort SmithDiscover last-minute flight deals from Ontario to Fort Smith. Data last updated September 3, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Fort Smith. Data last updated September 3, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/152:22 pm -
1 stop6h 13m
Sat 9/196:00 am -
1 stop7h 47m
Deal found 8/31![American Airlines logo]()
$563
This American Airlines deal was found by Cheapflights users on 9/1. 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 9/167:20 am -
1 stop7h 23m
Sun 9/205:16 pm -
1 stop8h 20m
Deal found 9/1![American Airlines logo]()
$610
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/212:22 pm -
1 stop6h 13m
Fri 9/255:16 pm -
1 stop7h 21m
Deal found 9/2![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/2312:37 pm -
1 stop7h 58m
Sat 9/2610:06 am -
2 stops10h 11m
Deal found 8/31![American Airlines logo]()
$679
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 9/252:22 pm -
1 stop6h 13m
Fri 10/25:16 pm -
1 stop7h 21m
Deal found 9/2![American Airlines logo]()
$599
This American Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 9/298:25 am -
1 stop6h 18m
Sat 10/36:00 am -
1 stop7h 47m
Deal found 9/1![American Airlines logo]()
$524
One-way flights from Ontario to Fort SmithSearch for one-way flight options from Ontario to Fort Smith. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
Search for one-way flight options from Ontario to Fort Smith. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
This American Airlines deal was found by Cheapflights users on 8/29. 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 9/1212:37 pm -
1 stop7h 58m
Deal found 8/29![American Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 8/29. 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.
Sun 9/132:22 pm -
1 stop7h 35m
Deal found 8/29![American Airlines logo]()
$480
Find flight deals from Ontario to Fort Smith
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Fort Smith (FSM). 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 September 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $524 (American Airlines) |
One-way from | $433 (American Airlines) |
Popular in | March |
Cheapest in | February |
Average price | $580 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Fort Smith 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 7,457,451 searches. Data last updated September 3, 2026.
Use the filters below to find and compare flights from Ontario to Fort Smith that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Wed 9/23
12:37 pm-10:35 pm
1 stop7h 58m
Fort Smith
Sat 9/26
5:16 pm-10:37 pm
1 stop7h 21m
$563
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Tue 9/29
8:25 am-4:43 pm
1 stop6h 18m
Fort Smith
Sat 10/3
6:00 am-6:17 pm
2 stops14h 17m
$565
Quickest round-trip
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Fri 9/25
12:37 pm-10:35 pm
1 stop7h 58m
Fort Smith
Fri 10/2
10:06 am-1:25 pm
1 stop5h 19m
$599
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Wed 9/16
7:20 am-4:43 pm
1 stop7h 23m
Fort Smith
Sun 9/20
5:16 pm-11:36 pm
1 stop8h 20m
$610
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Tue 9/15
1:04 pm-10:35 pm
2 stops7h 31m
Fort Smith
Sat 9/19
5:16 pm-10:37 pm
1 stop7h 21m
$701
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Mon 9/21
2:22 pm-10:35 pm
1 stop6h 13m
Fort Smith
Fri 9/25
5:16 pm-10:37 pm
1 stop7h 21m
$703
Cheapest one-way
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Sat 9/12
12:37 pm-10:35 pm
1 stop7h 58m
$433
Quickest one-way
OntarioFort Smith
ONT Ontario - FSM Fort Smith
ONTFSM
Ontario
Sun 9/13
2:22 pm-11:57 pm
1 stop7h 35m
$480
Sorted by cheapest first
Compare providers for flights from Ontario to Fort Smith
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 Ontario to Fort Smith in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Fort Smith flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Fort Smith flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Fort Smith flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Fort Smith 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 Ontario-Fort Smith 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 Ontario to Fort Smith
Have a flexible travel schedule? Discover the best time to fly to Fort Smith from Ontario with our price prediction graph.
ONT-FSM
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 Fort Smith
Get insights into the airlines that provide service to Fort Smith. 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 Fort Smith. Reviews last updated September 3, 2026.
Read through reviews of airlines operating flights from Ontario to Fort Smith, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.2
Overall
7.1
Entertainment
6.8
Food
6.4
Boarding
7.5
Crew
7.9
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Comfort
7.2
Overall
7.1
Entertainment
6.8
Food
6.4
Boarding
7.5
Crew
7.9
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Fort Smith. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Fort Smith?
Book flights to Fort Smith if you plan to visit one of these locationsVan Buren
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
Complete your trip
Flights by cabin class
Fort Smith flight routes
Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Fort Smith
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Fort Smith by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Fort Smith by cabin class
Find flights from Ontario to Fort Smith, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Fort Smith
Explore flights to Fort Smith departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 3, 2026.
Ontario and Fort Smith flights
Browse other Ontario and Fort Smith flight options. Last updated on September 3, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on September 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Ontario to Fort Smith
Discover the top airline that operate flights from Ontario to Fort Smith. 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 7,457,451 searches. Data last updated September 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$432 | Average$512 | FlexibilityNo cancel fee | On-time71% |