Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Fort Smith to Los Angeles from $455

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Fort Smith to Los Angeles departing on 3/23. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Fort Smith to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:15 pm - 10:36 pm
FSM
-
ONT
7h 21m
1 stop
American Airlines Logo
11:59 pm - 9:35 am
ONT
-
FSM
7h 36m
1 stop
$471American Airlines
Mon, Jul 20 - Mon, Jul 27
American Airlines Logo
6:07 am - 10:06 am
FSM
-
ONT
5h 59m
1 stop
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$550American Airlines
Tue, Mar 17 - Mon, Mar 23
American Airlines Logo
6:24 pm - 10:49 pm
FSM
-
ONT
6h 25m
1 stop
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$570American Airlines
Tue, Mar 17 - Mon, Mar 23
American Airlines Logo
6:07 am - 11:31 am
FSM
-
ONT
7h 24m
2 stops
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$575American Airlines
Wed, Mar 18 - Mon, Mar 23
American Airlines Logo
6:07 am - 10:06 am
FSM
-
ONT
5h 59m
1 stop
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$583American Airlines
Tue, Mar 17 - Sun, Mar 22
American Airlines Logo
6:24 pm - 10:30 pm
FSM
-
ONT
6h 06m
1 stop
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$587American Airlines
Mon, Mar 16 - Mon, Mar 23
American Airlines Logo
8:20 pm - 11:59 pm
FSM
-
ONT
5h 39m
1 stop
American Airlines Logo
7:02 pm - 9:35 am
ONT
-
FSM
12h 33m
2 stops
$595American Airlines
Mon, Jul 20 - Mon, Jul 27
American Airlines Logo
6:24 pm - 10:49 pm
FSM
-
ONT
6h 25m
1 stop
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$603American Airlines
Tue, Mar 17 - Sun, Mar 22
American Airlines Logo
6:07 am - 4:22 pm
FSM
-
ONT
12h 15m
2 stops
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$614American Airlines
Tue, Mar 17 - Mon, Mar 23
American Airlines Logo
6:24 pm - 10:30 pm
FSM
-
ONT
6h 06m
1 stop
American Airlines Logo
11:58 pm - 9:49 am
ONT
-
FSM
7h 51m
1 stop
$620American Airlines
Mon, Mar 16 - Sun, Mar 22

American Airlines flights from Fort Smith to Ontario

Our best American Airlines deals on Fort Smith to Ontario flight tickets
American Airlines
Jul 20
FSM5:15 pmFort Smith
7h 21m
1 stop
ONT10:36 pmOntario
Jul 27
ONT11:59 pmOntario
7h 36m
1 stop
FSM9:35 amFort Smith
$471
American Airlines
Mar 17
FSM6:07 amFort Smith
5h 59m
1 stop
ONT10:06 amOntario
Mar 23
ONT11:58 pmOntario
7h 51m
1 stop
FSM9:49 amFort Smith
$550
American Airlines
Mar 17
FSM6:24 pmFort Smith
6h 25m
1 stop
ONT10:49 pmOntario
Mar 23
ONT11:58 pmOntario
7h 51m
1 stop
FSM9:49 amFort Smith
$570

momondo 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, momondo users made 832,500 searches. Data last updated March 4, 2026.
Use the filters below to find and compare flights from Fort Smith to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Mon 7/20

5:15 pm-10:36 pm

1 stop7h 21m

Ontario

Mon 7/27

11:59 pm-9:35 am

1 stop7h 36m

$471

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Tue 3/17

6:07 am-10:06 am

1 stop5h 59m

Ontario

Mon 3/23

11:58 pm-9:49 am

1 stop7h 51m

$550

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Tue 3/17

6:24 pm-10:49 pm

1 stop6h 25m

Ontario

Mon 3/23

11:58 pm-9:49 am

1 stop7h 51m

$570

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Wed 3/18

6:07 am-11:31 am

2 stops7h 24m

Ontario

Mon 3/23

11:58 pm-9:49 am

1 stop7h 51m

$575

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Tue 3/17

6:07 am-10:06 am

1 stop5h 59m

Ontario

Sun 3/22

11:58 pm-9:49 am

1 stop7h 51m

$583

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Mon 3/16

6:24 pm-10:30 pm

1 stop6h 06m

Ontario

Mon 3/23

11:58 pm-9:49 am

1 stop7h 51m

$587

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Mon 7/20

8:20 pm-11:59 pm

1 stop5h 39m

Ontario

Mon 7/27

7:02 pm-9:35 am

2 stops12h 33m

$595

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Tue 3/17

6:24 pm-10:49 pm

1 stop6h 25m

Ontario

Sun 3/22

11:58 pm-9:49 am

1 stop7h 51m

$603

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Tue 3/17

6:07 am-4:22 pm

2 stops12h 15m

Ontario

Mon 3/23

11:58 pm-9:49 am

1 stop7h 51m

$614

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Mon 3/16

6:24 pm-10:30 pm

1 stop6h 06m

Ontario

Sun 3/22

11:58 pm-9:49 am

1 stop7h 51m

$620

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

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

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

What is the cheapest airline that flies from Fort Smith to Ontario?

American Airlines is the most popular carrier operating from Fort Smith to Ontario

What airlines fly to Ontario?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Ontario from Fort Smith according to our data. American Airlines is the first choice among our users, with 75% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 5 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Fort Smith to Ontario

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

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

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

Fastest flight time

5h 59m

Direct flights

None
The fastest flight from Fort Smith to Ontario takes 5h 59m
There are no direct flights from Fort Smith to Ontario. There are no popular flight routes from Fort Smith to Ontario.
Search flight deals

  • How far is Fort Smith to Ontario by plane?

    The distance between Fort Smith and Ontario is about 1319.7 mi. Flights usually cover this in 5h 59m, depending on flying conditions and air traffic around both airports.

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

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

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

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

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

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Fort Smith to Ontario

Compare and see reviews for airlines that fly from Fort Smith to Ontario with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $453Free CancellationRating
7.1
11,378 reviews
Search American Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Fort Smith.

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

Yes. momondo enables you to select and highlight flights to Ontario from Fort Smith with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Fort Smith.

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

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Fort Smith and alert you when they change.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 4/3
Fri 4/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States