Las Vegas to Ontario flights in November 2026 from $57 LAS → ONT
McCarran International Airport (LAS) → Ontario International Airport (ONT)
For departures in November 2026, the cheapest return found recently is $73 with Frontier Airlines, 24 Nov – 25 Dec, found 4 days ago. The cheapest one-way found recently is $57 with Frontier Airlines, 22 Nov, found yesterday.
Return
In November 2026, the cheapest return fare on each of 5 departure dates is usually $73 to $109. Across all 8 departure dates we hold on this route, it is usually $43 to $90. Of the 2 months with enough return fares to compare, November 2026 is usually the most expensive.
Cheapest return found recently
$73
24 Nov – 25 Dec · Frontier Airlines
McCarran International Airport (LAS) → Ontario International Airport (ONT)
out nonstop, back nonstop
found 4 days ago
Cheapest we hold, of any age
$43
25 Nov – 30 Nov · Frontier Airlines
McCarran International Airport (LAS) → Ontario International Airport (ONT)
out nonstop, back nonstop
found 7 days ago
The cheapest dates in November 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 25 Nov – 30 Nov | $43 | Frontier Airlines | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 24 Nov – 25 Dec | $73 | Frontier Airlines | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 23 Nov – 26 Nov | $83 | Frontier Airlines | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 17 Nov – 21 Nov | $109 | Frontier Airlines | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 19 Nov – 19 Nov | $204 | Frontier Airlines | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
Every date we hold
5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 17 Nov – 21 Nov | $109 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 19 Nov – 19 Nov | $204 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 23 Nov – 26 Nov | $83 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 24 Nov – 25 Dec | $73 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 25 Nov – 30 Nov | $43 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $42.
One-way
In November 2026, the cheapest one-way fare on each of 9 departure dates is usually $57 to $69. Across all 22 departure dates we hold on this route, it is usually $29 to $69. Of the 3 months with enough one-way fares to compare, 1 is usually cheaper than November 2026.
Cheapest one-way found recently
$57
22 Nov · Frontier Airlines
McCarran International Airport (LAS) → Ontario International Airport (ONT)
nonstop
found yesterday
Cheapest we hold, of any age
$38
24 Nov · Frontier Airlines
McCarran International Airport (LAS) → Ontario International Airport (ONT)
nonstop
found 2 days ago
The cheapest dates in November 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 24 Nov | $38 | Frontier Airlines | nonstop | found 2 days ago | Open this trip |
| 18 Nov | $52 | Frontier Airlines | nonstop | found 5 days ago | Open this trip |
| 22 Nov | $57 | Frontier Airlines | nonstop | found yesterday | Open this trip |
| 17 Nov | $61 | Frontier Airlines | nonstop | found 6 days ago | Open this trip |
| 19 Nov | $64 | Frontier Airlines | nonstop | found 5 days ago | Open this trip |
Every date we hold
9 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 16 Nov | $78 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 5 days ago | Open this trip |
| 17 Nov | $61 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 6 days ago | Open this trip |
| 18 Nov | $52 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 5 days ago | Open this trip |
| 19 Nov | $64 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 5 days ago | Open this trip |
| 20 Nov | $69 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 5 days ago | Open this trip |
| 22 Nov | $57 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found yesterday | Open this trip |
| 23 Nov | $72 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 4 days ago | Open this trip |
| 24 Nov | $38 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 2 days ago | Open this trip |
| 25 Nov | $68 | Frontier Airlines | McCarran International Airport (LAS) → Ontario International Airport (ONT) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $18.
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