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Cheap flights from Ontario to Fort Smith from $418

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Fort Smith departing on 3/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Fort Smith

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:08 pm - 11:39 pm
ONT
-
FSM
7h 31m
1 stop
American Airlines Logo
6:41 pm - 10:36 pm
FSM
-
ONT
5h 55m
1 stop
$551American Airlines
Thu, May 7 - Wed, May 13
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
American Airlines Logo
6:00 am - 10:09 am
FSM
-
ONT
6h 09m
1 stop
$553American Airlines
Wed, Apr 1 - Wed, Apr 8
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
American Airlines Logo
11:10 am - 4:22 pm
FSM
-
ONT
7h 12m
2 stops
$558American Airlines
Wed, Apr 1 - Wed, Apr 8
American Airlines Logo
12:22 pm - 11:49 pm
ONT
-
FSM
9h 27m
2 stops
American Airlines Logo
11:10 am - 6:30 pm
FSM
-
ONT
9h 20m
2 stops
$563American Airlines
Wed, Apr 1 - Wed, Apr 8
American Airlines Logo
12:19 pm - 11:39 pm
ONT
-
FSM
9h 20m
2 stops
American Airlines Logo
6:41 pm - 10:36 pm
FSM
-
ONT
5h 55m
1 stop
$589American Airlines
Thu, May 7 - Wed, May 13
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
American Airlines Logo
6:24 pm - 11:59 pm
FSM
-
ONT
7h 35m
1 stop
$590American Airlines
Tue, Mar 31 - Sun, Apr 5
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
American Airlines Logo
10:19 am - 4:22 pm
FSM
-
ONT
8h 03m
2 stops
$595American Airlines
Tue, Mar 31 - Sun, Apr 5
American Airlines Logo
2:39 pm - 11:49 pm
ONT
-
FSM
7h 10m
1 stop
American Airlines Logo
6:24 pm - 11:59 pm
FSM
-
ONT
7h 35m
1 stop
$627American Airlines
Thu, Apr 2 - Mon, Apr 6
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
American Airlines Logo
6:07 am - 4:22 pm
FSM
-
ONT
12h 15m
2 stops
$628American Airlines
Tue, Mar 31 - Sun, Apr 5
American Airlines Logo
12:19 pm - 11:39 pm
ONT
-
FSM
9h 20m
2 stops
American Airlines Logo
6:41 pm - 11:46 pm
FSM
-
ONT
7h 05m
1 stop
$632American Airlines
Thu, Apr 23 - Sun, May 3

American Airlines flights from Ontario to Fort Smith

Our best American Airlines deals on Ontario to Fort Smith flight tickets
American Airlines
May 7
ONT2:08 pmOntario
7h 31m
1 stop
FSM11:39 pmFort Smith
May 13
FSM6:41 pmFort Smith
5h 55m
1 stop
ONT10:36 pmOntario
$551
American Airlines
Apr 1
ONT11:58 pmOntario
7h 51m
1 stop
FSM9:49 amFort Smith
Apr 8
FSM6:00 amFort Smith
6h 09m
1 stop
ONT10:09 amOntario
$553
American Airlines
Apr 1
ONT11:58 pmOntario
7h 51m
1 stop
FSM9:49 amFort Smith
Apr 8
FSM11:10 amFort Smith
7h 12m
2 stops
ONT4:22 pmOntario
$558

momondo 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, momondo users made 832,500 searches. Data last updated March 15, 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

Price

Cheapest round-trip
Quickest round-trip

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Thu 5/7

2:08 pm-11:39 pm

1 stop7h 31m

Fort Smith

Wed 5/13

6:41 pm-10:36 pm

1 stop5h 55m

$551

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Wed 4/1

11:58 pm-9:49 am

1 stop7h 51m

Fort Smith

Wed 4/8

6:00 am-10:09 am

1 stop6h 09m

$553

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Wed 4/1

11:58 pm-9:49 am

1 stop7h 51m

Fort Smith

Wed 4/8

11:10 am-4:22 pm

2 stops7h 12m

$558

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Wed 4/1

12:22 pm-11:49 pm

2 stops9h 27m

Fort Smith

Wed 4/8

11:10 am-6:30 pm

2 stops9h 20m

$563

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Thu 5/7

12:19 pm-11:39 pm

2 stops9h 20m

Fort Smith

Wed 5/13

6:41 pm-10:36 pm

1 stop5h 55m

$589

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Tue 3/31

11:58 pm-9:49 am

1 stop7h 51m

Fort Smith

Sun 4/5

6:24 pm-11:59 pm

1 stop7h 35m

$590

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Tue 3/31

11:58 pm-9:49 am

1 stop7h 51m

Fort Smith

Sun 4/5

10:19 am-4:22 pm

2 stops8h 03m

$595

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Thu 4/2

2:39 pm-11:49 pm

1 stop7h 10m

Fort Smith

Mon 4/6

6:24 pm-11:59 pm

1 stop7h 35m

$627

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Tue 3/31

11:58 pm-9:49 am

1 stop7h 51m

Fort Smith

Sun 4/5

6:07 am-4:22 pm

2 stops12h 15m

$628

OntarioFort Smith

ONT - FSM

ONTFSM

Ontario

Thu 4/23

12:19 pm-11:39 pm

2 stops9h 20m

Fort Smith

Sun 5/3

6:41 pm-11:46 pm

1 stop7h 05m

$632

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Fort Smith from

How to get the cheapest flight ticket from Ontario to Fort Smith

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Ontario to Fort Smith flights?

You could potentially save up to 14% on your flight if you consider stops on a Ontario to Fort Smith flight.

When to book flights from Ontario to Fort Smith

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Fort Smith according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Fort Smith (ONT to FSM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Fort Smith

Fastest flight time

7h 31m

Direct flights

None
The fastest flight from Ontario to Fort Smith takes 7h 31m
There are no direct flights from Ontario to Fort Smith. There are no popular flight routes from Ontario to Fort Smith.
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  • How far is Ontario to Fort Smith by plane?

    The distance between Ontario and Fort Smith is about 1319.7 mi. Flights usually cover this in 7h 31m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Fort Smith Airport?

    Prices for flights from Ontario Airport to Fort Smith Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Fort Smith Airport?

  • How old do you have to be to fly from Ontario Airport to Fort Smith Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Fort Smith Airport.

  • What documentation or ID do you need to fly to Fort Smith Airport?

    The travel and health documents required for your trip to Fort Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Fort Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Fort Smith?

Best airlines flying from Ontario to Fort Smith

Compare and see reviews for airlines that fly from Ontario to Fort Smith with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $414Free CancellationRating
7.1
11,472 reviews
Search American Airlines flights

Traveling to a place near Fort Smith?

Book flights to Fort Smith if you plan to visit one of these locations
Van Buren

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Fort Smith?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Fort Smith. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Fort Smith with flexible booking policies on momondo?

All flight searches from Ontario to Fort Smith on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Fort Smith?

momondo helps you find the best flight between Ontario and Fort Smith by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Fort Smith right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Fort Smith from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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