Cheap flights from New York LaGuardia to Ontario CA
New York LaGuardia to Ontario CA (LGA → ONT). We are tracking 66 fares on this route.
Cheapest tracked fare $110 · typical price $293 · you save about $183 (62%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier Airlines
2026-09-04
1 stop
$110
Frontier Airlines
2026-10-13
1 stop
$116
Southwest Airlines
2026-11-09
Direct
$133
Southwest Airlines
2026-11-12
Direct
$139
Southwest Airlines
2026-12-03
1 stop
$139
Southwest Airlines
2026-11-10
1 stop
$141
Southwest Airlines
2026-09-23
1 stop
$142
Southwest Airlines
2026-09-09
1 stop
$142
Southwest Airlines
2026-09-16
1 stop
$142
Southwest Airlines
2026-11-03
1 stop
$142
Southwest Airlines
2026-12-11
Direct
$142
Southwest Airlines
2026-12-17
Direct
$142
Southwest Airlines
2026-12-04
1 stop
$143
Southwest Airlines
2026-09-15
1 stop
$144
Southwest Airlines
2026-11-05
Direct
$145
Southwest Airlines
2026-12-09
1 stop
$146
Southwest Airlines
2026-11-13
Direct
$146
Southwest Airlines
2026-09-10
1 stop
$148
Southwest Airlines
2026-11-11
1 stop
$149
Southwest Airlines
2026-11-17
1 stop
$149
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from New York LaGuardia to Ontario CA get?
The cheapest fare we have tracked on this route is $110, compared with a typical $293 for a trip of this distance.
Is it cheaper to fly to Ontario CA from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make New York LaGuardia to Ontario CA cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.