Cheap flights from Ontario to Fort Lauderdale from $243 ONT → FLL
Ontario International Airport (ONT) → Fort Lauderdale-Hollywood International Airport (FLL)
The cheapest return found recently is $386 with Frontier Airlines, 25 Nov – 1 Dec, found today. The cheapest one-way found recently is $243 with Southwest Airlines, 20 Feb 2027, found 2 days ago.
- Cheapest one-way found recently
- $243, found 2 days ago
- Cheapest return found recently
- $386, 25 Nov to 1 Dec
- Usual return price
- $376 to $501
- Cheapest month to fly
- November 2026, return fares from $349 found in the last 7 days
Return
The cheapest return fare on each of 3 departure dates is usually $376 to $501.
Cheapest return found recently
$386
25 Nov – 1 Dec · Frontier Airlines
Ontario International Airport (ONT) → Fort Lauderdale-Hollywood International Airport (FLL)
Leaves 6:45 a.m. · Return leaves 8:00 a.m. · 12 h 47 min of travel, both ways together
out 1 stop, back nonstop
found today
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$386 25 Nov – 1 Decfound todaySee prices for these dates
$349 25 Nov – 1 Decfound 2 days agoSee prices for these dates
What have prices looked like?
Over 42 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $247 to $560.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 23 Nov to 24 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 6-night return fares leaving within 3 days of 25 Nov to compare.
Every date we hold
6 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Nov – 26 Nov | $403 | Frontier Airlines | Ontario International Airport (ONT) → Fort Lauderdale-Hollywood International Airport (FLL) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 25 Nov – 1 Dec | $349 | Frontier Airlines | Ontario International Airport (ONT) → Fort Lauderdale-Hollywood International Airport (FLL) | out 1 stop, back nonstop | found 2 days ago | See prices for these dates |
| 24 Dec – 27 Dec | $598 | United Airlines | Ontario International Airport (ONT) → Fort Lauderdale-Hollywood International Airport (FLL) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $349.
Airlines on the cheapest dates: Frontier Airlines, United Airlines.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$243
20 Feb 2027 · Southwest Airlines
Ontario International Airport (ONT) → Fort Lauderdale-Hollywood International Airport (FLL)
Leaves 1:35 p.m. · 6 h 10 min trip
1 stop
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$243 20 Feb 2027found 2 days agoOpen this trip
$216 20 Feb 2027found 3 days agoOpen this trip
What have prices looked like?
Over 27 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was $133 to $349.
27 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 20 Feb 2027 to compare.
Every date we hold
2 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Feb 2027 | $216 | American Airlines | Ontario International Airport (ONT) → Fort Lauderdale-Hollywood International Airport (FLL) | 1 stop | found 3 days ago | Open this trip |
Airlines on the cheapest dates: American Airlines.
Premium cabin fares from Ontario to Fort Lauderdale
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 25 Nov – 1 Dec in another cabin: Premium economy · Business · First
Today's prices for 20 Feb 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ontario to Fort Lauderdale?
Return
Fares 14 to 29 days before departure were typically 19% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (42 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $487 | $487 | +23% | 9 |
| 7–13 days | $428 | $265 | +8% | 9 |
| 14–29 days | $396 | $258 | Cheapest seen | 18 |
| 30–59 days | $424 | $247 | +7% | 24 |
| 60–89 days | $432 | $416 | +9% | 7 |
| 90–179 days | $453 | $435 | +14% | 32 |
| 180+ days | $560 | $560 | +41% | 8 |
One-way
The cheapest fares were 60 to 89 days before departure.
From the cheapest one-way each day between 24 Sept and 12 Nov (27 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 60–89 days | $133 | $133 | Cheapest seen | 7 |
| 90–179 days | $276 | $151 | +108% | 13 |
| 180+ days | $305 | $305 | +129% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Ontario → Miami
40 km from Fort Lauderdale
$244
$142 less than flying to Fort Lauderdale
10 Dec – 12 Dec · ONT → MIA · out 1 stop, back 1 stop
found 6 hours ago
Los Angeles → Fort Lauderdale
56 km from Ontario
$263
$123 less than flying from Ontario
2 Dec – 8 Dec · LAX → FLL · out 1 stop, back 2 stops
found yesterday
Long Beach → Fort Lauderdale
60 km from Ontario
$507
$121 more than flying from Ontario
23 Nov – 26 Nov · LGB → FLL · out 1 stop, back 1 stop
found 3 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Los Angeles → Fort Lauderdale
56 km from Ontario
$85
$158 less than flying from Ontario
2 Dec · LAX → FLL · 2 stops
found 2 days ago
Ontario → Miami
40 km from Fort Lauderdale
$196
$47 less than flying to Fort Lauderdale
8 Jan 2027 · ONT → MIA · 1 stop
found yesterday
Long Beach → Fort Lauderdale
60 km from Ontario
$215
$28 less than flying from Ontario
12 Dec · LGB → FLL · 1 stop
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 25 Nov – 1 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Ontario to Fort Lauderdale?
The cheapest return found recently is $386 with Frontier Airlines, 25 Nov to 1 Dec, found today. The cheapest return we hold, of any age, is $349 with Frontier Airlines, 25 Nov to 1 Dec, found 2 days ago. The cheapest return fare on each of 3 departure dates is usually $376 to $501.
How much is a one-way flight from Ontario to Fort Lauderdale?
The cheapest one-way found recently is $243 with Southwest Airlines, 20 Feb 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $216 with American Airlines, 20 Feb 2027, found 3 days ago.
What is the cheapest month to fly from Ontario to Fort Lauderdale?
November 2026 is the cheapest month for a return, from $349, 25 Nov to 1 Dec, found 2 days ago.
How far ahead should I book a flight from Ontario to Fort Lauderdale?
In 42 days of prices between 24 Sept and 12 Nov, return fares 14 to 29 days before departure were typically 19% lower than 0 to 6 days before departure. In 27 days of prices between 24 Sept and 12 Nov, one-way fares were cheapest 60 to 89 days before departure.
How long is the flight from Ontario to Fort Lauderdale?
The cheapest one-way found recently, with Southwest Airlines on 20 Feb 2027, takes 6 h 10 min with 1 stop.
Which airlines have the cheapest flights from Ontario to Fort Lauderdale?
Between 23 Nov and 24 Dec, Frontier Airlines has the cheapest return on 2 of the 3 departure dates we hold, and United Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work