ONT - FSM

$428 Find Cheap Flights from Ontario to Fort Smith

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Fort Smith departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Fort Smith

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Fort Smith, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Fort Smith, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$475
American Airlines
Sat 7/25Sat 8/1
ONT - FSM • 1 stop
Cheapest one-way
$428
American Airlines
Wed 7/29
ONT - FSM • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Fort Smith. You'll need at least 1 connection.
Insights
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Top layover airports
Atlanta (ATL)
Cheapest • Avg $268 (round-trip)
Denver (DEN)
Shortest trip • 5h 11m (one-way)
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Fort Smith (ONT-FSM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Fort Smith that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Fort Smith

Sat, Jul 25 - Sat, Aug 1
American Airlines Logo
11:59 pm - 9:36 am
ONT
-
FSM
7h 37m
1 stop
American Airlines Logo
8:18 pm - 11:59 pm
FSM
-
ONT
5h 41m
1 stop
$475American Airlines
Tue, Jul 28 - Sat, Aug 1
American Airlines Logo
1:11 pm - 9:36 am
ONT
-
FSM
18h 25m
2 stops
American Airlines Logo
8:18 pm - 11:59 pm
FSM
-
ONT
5h 41m
1 stop
$517American Airlines
Tue, Jul 7 - Sat, Jul 11
American Airlines Logo
7:00 am - 4:44 pm
ONT
-
FSM
7h 44m
1 stop
American Airlines Logo
8:18 pm - 11:59 pm
FSM
-
ONT
5h 41m
1 stop
$553American Airlines
Wed, Nov 11 - Sat, Nov 14
American Airlines Logo
9:59 am - 11:51 pm
ONT
-
FSM
11h 52m
2 stops
American Airlines Logo
10:10 am - 9:59 pm
FSM
-
ONT
13h 49m
2 stops
$558American Airlines
Wed, Jul 15 - Sun, Jul 19
American Airlines Logo
11:59 pm - 9:36 am
ONT
-
FSM
7h 37m
1 stop
American Airlines Logo
6:10 am - 9:29 am
FSM
-
ONT
5h 19m
1 stop
$600American Airlines
Wed, Jul 29 - Thu, Aug 6
American Airlines Logo
11:59 pm - 9:36 am
ONT
-
FSM
7h 37m
1 stop
American Airlines Logo
6:00 am - 9:34 am
FSM
-
ONT
5h 34m
1 stop
$603American Airlines
Thu, Jul 30 - Fri, Aug 7
American Airlines Logo
2:15 pm - 11:57 pm
ONT
-
FSM
7h 42m
1 stop
American Airlines Logo
6:00 am - 9:34 am
FSM
-
ONT
5h 34m
1 stop
$631American Airlines
Sat, Jul 25 - Sat, Aug 1
American Airlines Logo
11:59 pm - 9:36 am
ONT
-
FSM
7h 37m
1 stop
American Airlines Logo
10:06 am - 9:44 pm
FSM
-
ONT
13h 38m
2 stops
$638American Airlines
Tue, Jul 28 - Sat, Aug 1
American Airlines Logo
6:11 am - 11:57 pm
ONT
-
FSM
15h 46m
2 stops
American Airlines Logo
10:06 am - 9:44 pm
FSM
-
ONT
13h 38m
2 stops
$665American Airlines
Wed, Jul 29 - Thu, Aug 6
American Airlines Logo
6:11 am - 4:44 pm
ONT
-
FSM
8h 33m
2 stops
American Airlines Logo
6:00 am - 9:34 am
FSM
-
ONT
5h 34m
1 stop
$680American Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Fort Smith flights

Get data-powered insights and trends into flights from Ontario to Fort Smith to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Ontario to Fort Smith?

Percentage of 1-stop round-trip flights from Ontario to Fort Smith chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Dallas (DFW) is the top choice – 87% of KAYAK users who clicked on 1-stop flights from Ontario to Fort Smith picked an itinerary connecting there.

What is the cheapest layover airport when flying from Ontario to Fort Smith?

Average round-trip price for 1-stop flights from Ontario to Fort Smith clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Atlanta (ATL) offer the most affordable fares, with an average round-trip price of $268.

Which layover airport offers the shortest total travel time from Ontario to Fort Smith?

Shortest average total travel time for 1-stop one-way flights from Ontario to Fort Smith via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Denver (DEN) for the shortest journey. The average one-way travel time for flights connecting there is 5h 11m.

Which layover airport has the quickest connection when flying from Ontario to Fort Smith?

Average layover duration at different layover airports for 1-stop one-way flights from Ontario to Fort Smith, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Denver (DEN) often has the shortest layovers from Ontario to Fort Smith, with an average of 0h 57m.

Find deals

Good to know

Cheapest flight$428
Flight from Ontario to Fort Smith

When to book flights from Ontario to Fort Smith

Are your dates flexible? Find out the best times to travel from Ontario to Fort Smith based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Fort Smith

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

    In the last 5 days, the lowest price for a flight from Ontario to Fort Smith was $428 for a one-way ticket and $475 for a round-trip.

  • Do I need a passport to fly between Ontario and Fort Smith?

    No, a passport isn't needed to fly from Ontario to Fort Smith. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Fort Smith?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Fort Smith?

    oneworld is the only airline alliance operating flights between Ontario and Fort Smith.

  • How does KAYAK find such low prices on flights from Ontario to Fort Smith?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Fort Smith.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Fort Smith?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Fort Smith from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Fort Smith?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Fort Smith with an airline and back to Ontario with another airline. Booking your flights between Ontario and FSM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Fort Smith?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Fort Smith from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Fort Smith

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Fort Smith. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Fort Smith? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11772 reviews
7.5Boarding
6.8Entertainment
7.2Comfort
7.9Crew
6.4Food
Airline reviews

Flight was delayed multiple times without giving any particular reason and the only thing that was communicated was that 'Aircraft is getting ready'. I was stuck at SFO airport for 15 hours and finally took Southwest Airlines flight back home to Dallas.

2.0 MediocreAnil, Jun 2026
SFO - DFW
Read more American Airlines reviews

Flight was delayed multiple times without giving any particular reason and the only thing that was communicated was that 'Aircraft is getting ready'. I was stuck at SFO airport for 15 hours and finally took Southwest Airlines flight back home to Dallas.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

The flight was on time and arrived early. The crew were friendly and helpful.

Am still mad at American airlines. You should know it's us travel nurses who are your customers and you treat us like nonsense it's not ok. American airlines took my money, no refund for whatsoever. A trip that was of 466 and I paid 466 and 833 then they chose for me where to sit and refund my seat choices and gave me expensive seats for 79 USD. Kayak doesn't help at all after booking you are on your own. Skyscanner is better

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

Seems every time I fly American airlines they switch gates and terminals and I always have to run to make my connection. American airlines flights are always delayed departing and arriving .

No foot service or entertainment. Just a Trip from one place to the other. Not much different that a bus ride except it is faster and more expensive.

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

Information on your arrival and departure airports

Ontario (ONT)
Fort Smith (FSM)