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Cheap flights from Fort Smith to Los Angeles from $428

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 7/1. 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
1 adult, Economy, 0 bags

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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
5:16 pm - 10:37 pm
FSM
-
ONT
7h 21m
1 stop
American Airlines Logo
2:22 pm - 10:35 pm
ONT
-
FSM
6h 13m
1 stop
$531American Airlines
Fri, Sep 11 - Mon, Sep 21
American Airlines Logo
5:15 pm - 10:32 pm
FSM
-
ONT
7h 17m
1 stop
American Airlines Logo
11:59 pm - 9:36 am
ONT
-
FSM
7h 37m
1 stop
$575American Airlines
Fri, Jul 3 - Sat, Jul 11
American Airlines Logo
10:06 am - 6:17 pm
FSM
-
ONT
10h 11m
2 stops
American Airlines Logo
2:22 pm - 10:35 pm
ONT
-
FSM
6h 13m
1 stop
$659American Airlines
Fri, Sep 11 - Mon, Sep 21
American Airlines Logo
10:06 am - 6:17 pm
FSM
-
ONT
10h 11m
2 stops
American Airlines Logo
1:05 pm - 10:35 pm
ONT
-
FSM
7h 30m
2 stops
$829American Airlines
Fri, Sep 11 - Mon, Sep 21

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American Airlines flights from Fort Smith to Ontario

Our best American Airlines deals on Fort Smith to Ontario flight tickets
American Airlines
Sep 11
FSM5:16 pmFort Smith
7h 21m
1 stop
ONT10:37 pmOntario
Sep 21
ONT2:22 pmOntario
6h 13m
1 stop
FSM10:35 pmFort Smith
$531
American Airlines
Jul 3
FSM5:15 pmFort Smith
7h 17m
1 stop
ONT10:32 pmOntario
Jul 11
ONT11:59 pmOntario
7h 37m
1 stop
FSM9:36 amFort Smith
$575
American Airlines
Sep 11
FSM10:06 amFort Smith
10h 11m
2 stops
ONT6:17 pmOntario
Sep 21
ONT2:22 pmOntario
6h 13m
1 stop
FSM10:35 pmFort Smith
$659

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 June 14, 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

Cheapest round-trip
Quickest round-trip

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Fri 9/11

5:16 pm-10:37 pm

1 stop7h 21m

Ontario

Mon 9/21

2:22 pm-10:35 pm

1 stop6h 13m

$531

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Fri 7/3

5:15 pm-10:32 pm

1 stop7h 17m

Ontario

Sat 7/11

11:59 pm-9:36 am

1 stop7h 37m

$575

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Fri 9/11

10:06 am-6:17 pm

2 stops10h 11m

Ontario

Mon 9/21

2:22 pm-10:35 pm

1 stop6h 13m

$659

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Fri 9/11

10:06 am-6:17 pm

2 stops10h 11m

Ontario

Mon 9/21

1:05 pm-10:35 pm

2 stops7h 30m

$829
Cheapest one-way
Quickest one-way

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Wed 7/1

10:06 am-1:28 pm

1 stop5h 22m

$428

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Wed 7/1

10:06 am-6:21 pm

2 stops10h 15m

$464

Fort SmithOntario

FSM - ONT

FSMONT

Fort Smith

Wed 7/15

10:06 am-6:18 pm

2 stops10h 12m

$498

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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

7h 17m

Direct flights

None
The fastest flight from Fort Smith to Ontario takes 7h 17m
There are no direct flights from Fort Smith to Ontario. There are no popular flight routes from Fort Smith to Ontario.
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Frequently asked questions about flying from Fort Smith to Ontario

  • 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 7h 17m, 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
11,648 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.

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Tue 7/14
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