Cheap flights from New York to Ontario from $183 EWR, JFK, LGA → ONT
Newark Liberty International Airport (EWR), John F. Kennedy International Airport (JFK), LaGuardia Airport (LGA) → Ontario International Airport (ONT)
The cheapest return found recently is $362 with American Airlines, 6 Apr 2027 – 20 Apr 2027, found 2 days ago. The cheapest one-way found recently is $183 with Alaska Airlines, 9 Mar 2027, found 2 days ago.
- Cheapest one-way found recently
- $183, Alaska Airlines, found 2 days ago
- Cheapest return found recently
- $362, 6 Apr 2027 to 20 Apr 2027
- Usual return price
- $362 to $495
- Cheapest month to fly
- January 2027, return fares from $318 found in the last 7 days
- Airlines with nonstop flights
- jetBlue, United Airlines, Alaska Airlines, American Airlines, Southwest Airlines
- Shortest nonstop flight found
- 6 h 15 min
Return
The cheapest return fare on each of 15 departure dates is usually $362 to $495.
Cheapest return found recently
$362
6 Apr 2027 – 20 Apr 2027 · American Airlines
John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)
Leaves 6:35 a.m. · Return leaves 12:24 p.m. · 15 h 53 min of travel, both ways together
out 1 stop, back 1 stop · via Phoenix Sky Harbor International Airport (PHX)
found 2 days ago
Cheapest nonstop return
$523
10 Sept 2027 – 17 Sept 2027 · jetBlue
John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)
Leaves 7:00 p.m. · Return leaves 3:59 p.m. · 11 h 50 min of travel, both ways together
out nonstop, back nonstop
found 3 days ago
Found recently, and the cheapest we hold
$362 6 Apr 2027 – 20 Apr 2027found 2 days agoSee prices for these dates
$318 16 Jan 2027 – 20 Jan 2027found 8 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $214 to $324.
At $362, the cheapest return found recently is above that range.
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 15 departure dates from 14 Nov to 10 Sept 2027, 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 14-night return fares leaving within 3 days of 6 Apr 2027 to compare.
Every date we hold
191 fares on 15 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 14 Nov – 18 Nov | $479 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 16 Nov – 22 Nov | $526 | American Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 23 Nov – 13 Dec | $892 | Southwest Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 9 Dec – 12 Dec | $321 | Southwest Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 1 Jan 2027 – 8 Jan 2027 | $415 | Southwest Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 2 Jan 2027 – 14 Jan 2027 | $491 | United Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | out 2 stops, back nonstop | found 6 days ago | See prices for these dates |
| 16 Jan 2027 – 20 Jan 2027 | $318 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 25 Jan 2027 – 8 Feb 2027 | $324 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 6 Apr 2027 – 20 Apr 2027 | $356 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 13 Apr 2027 – 25 Apr 2027 | $403 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out 1 stop, back nonstop | found 4 days ago | See prices for these dates |
| 16 Apr 2027 – 10 May 2027 | $499 | United Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 20 Apr 2027 – 25 Apr 2027 | $394 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out 1 stop, back nonstop | found 5 days ago | See prices for these dates |
| 24 Apr 2027 – 1 May 2027 | $460 | Alaska Airlines | Newark Liberty International Airport (EWR) → Ontario International Airport (ONT) | out 1 stop, back nonstop | found 7 days ago | See prices for these dates |
| 30 Jun 2027 – 17 Jul 2027 | $517 | jetBlue | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 10 Sept 2027 – 17 Sept 2027 | $367 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | out 1 stop, back nonstop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $318.
Airlines on the cheapest dates: Alaska Airlines, Southwest Airlines, United Airlines, American Airlines, jetBlue.
One-way
The cheapest one-way fare on each of 16 departure dates is usually $183 to $206.
Cheapest one-way found recently
$183
9 Mar 2027 · Alaska Airlines
John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)
Leaves 7:00 a.m. · 11 h 10 min trip
1 stop · via Seattle-Tacoma International Airport (SEA)
found 2 days ago
Cheapest nonstop one-way
$357
16 Sept 2027 · jetBlue
John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)
Leaves 7:00 p.m. · 6 h 15 min trip
nonstop
found 3 days ago
Found recently, and the cheapest we hold
$183 9 Mar 2027found 2 days agoOpen this trip
$178 6 Apr 2027found 4 days agoOpen this trip
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $96 to $168.
At $183, the cheapest one-way found recently is above that range.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 16 departure dates from 14 Nov to 19 Sept 2027, 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 one-way fares leaving within 3 days of 9 Mar 2027 to compare.
Every date we hold
94 fares on 16 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 14 Nov | $234 | American Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | 1 stop | found 7 days ago | Open this trip |
| 4 Mar 2027 | $199 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 5 days ago | Open this trip |
| 9 Mar 2027 | $183 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 2 days ago | Open this trip |
| 16 Mar 2027 | $184 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 2 days ago | Open this trip |
| 18 Mar 2027 | $228 | Alaska Airlines | Newark Liberty International Airport (EWR) → Ontario International Airport (ONT) | 1 stop | found 6 days ago | Open this trip |
| 23 Mar 2027 | $184 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 4 days ago | Open this trip |
| 31 Mar 2027 | $183 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 4 days ago | Open this trip |
| 6 Apr 2027 | $178 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 4 days ago | Open this trip |
| 20 Apr 2027 | $184 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 6 days ago | Open this trip |
| 27 Apr 2027 | $184 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 6 days ago | Open this trip |
| 16 May 2027 | $281 | Southwest Airlines | LaGuardia Airport (LGA) → Ontario International Airport (ONT) | 1 stop | found 7 days ago | Open this trip |
| 22 May 2027 | $227 | Alaska Airlines | Newark Liberty International Airport (EWR) → Ontario International Airport (ONT) | 1 stop | found 8 days ago | See prices for these dates |
| 12 Sept 2027 | $188 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 6 days ago | Open this trip |
| 14 Sept 2027 | $178 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 4 days ago | Open this trip |
| 16 Sept 2027 | $178 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 3 days ago | Open this trip |
| 19 Sept 2027 | $184 | Alaska Airlines | John F. Kennedy International Airport (JFK) → Ontario International Airport (ONT) | 1 stop | found 5 days ago | Open this trip |
Which month looks cheapest?
April 2027 is the cheapest month — from $178.
Airlines on the cheapest dates: Alaska Airlines, American Airlines, Southwest Airlines.
Premium cabin fares from New York to Ontario
Return
We hold no premium economy, business or first-class return fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 6 Apr 2027 – 20 Apr 2027 in another cabin: Premium economy · Business · First
One-way
Business
The lowest business fare we have seen is $686, across 5 departure dates.
2 Dec · LGA → ONT · American Airlines
1 stop · via CLT
found 6 days ago
That business fare is 3.9 times the economy fare of $178.
First
The lowest first-class fare we have seen is $743, across 2 departure dates.
17 Nov · LGA → ONT · American Airlines
1 stop · via DFW
found 3 days ago
Today's prices for 9 Mar 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for New York to Ontario?
Return
Fares 30 to 59 days before departure were typically 27% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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 | $402 | $343 | +37% | 44 |
| 7–13 days | $332 | $299 | +13% | 49 |
| 14–29 days | $311 | $214 | +6% | 43 |
| 30–59 days | $294 | $216 | Cheapest seen | 49 |
| 60–89 days | $338 | $285 | +15% | 49 |
| 90–179 days | $323 | $224 | +10% | 49 |
| 180+ days | $392 | $287 | +33% | 41 |
One-way
Fares 30 to 59 days before departure were typically 18% lower than 7 to 13 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (49 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 |
|---|---|---|---|---|
| 7–13 days | $149 | $148 | +22% | 9 |
| 14–29 days | $148 | $96 | +21% | 15 |
| 30–59 days | $122 | $111 | Cheapest seen | 32 |
| 60–89 days | $163 | $112 | +34% | 38 |
| 90–179 days | $156 | $112 | +28% | 49 |
| 180+ days | $172 | $159 | +41% | 49 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
New York → Los Angeles
56 km from Ontario
$275
$87 less than flying to Ontario
16 Jan 2027 – 20 Jan 2027 · JFK → LAX · out nonstop, back nonstop
found 2 days ago
Philadelphia → Ontario
130 km from New York
$566
$204 more than flying from New York
27 Dec – 3 Jan 2027 · PHL → ONT · out 1 stop, back 1 stop
found 2 days ago
New York → Palm Springs
104 km from Ontario
$621
$259 more than flying to Ontario
29 Nov – 2 Dec · JFK → PSP · out nonstop, back 1 stop
found 5 days ago
Newburgh → Ontario
88 km from New York
$660
$298 more than flying from New York
14 Nov – 18 Nov · SWF → ONT · out 3 stops, back 2 stops
found 6 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
New York → Los Angeles
56 km from Ontario
$134
$49 less than flying to Ontario
2 Feb 2027 · LGA → LAX · 2 stops
found yesterday
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 6 Apr 2027 – 20 Apr 2027. 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 New York to Ontario?
The cheapest return found recently is $362 with American Airlines, 6 Apr 2027 to 20 Apr 2027, found 2 days ago. The cheapest return we hold, of any age, is $318 with Alaska Airlines, 16 Jan 2027 to 20 Jan 2027, found 8 days ago. The cheapest return fare on each of 15 departure dates is usually $362 to $495.
How much is a one-way flight from New York to Ontario?
The cheapest one-way found recently is $183 with Alaska Airlines, 9 Mar 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $178 with Alaska Airlines, 6 Apr 2027, found 4 days ago. The cheapest one-way fare on each of 16 departure dates is usually $183 to $206.
What is the cheapest month to fly from New York to Ontario?
January 2027 is the cheapest month for a return, from $318, 16 Jan 2027 to 20 Jan 2027, found 8 days ago. April 2027 is the cheapest month for a one-way, from $178, 6 Apr 2027, found 4 days ago.
How far ahead should I book a flight from New York to Ontario?
In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 27% lower than 0 to 6 days before departure. One-way fares 30 to 59 days before departure were typically 18% lower than 7 to 13 days before departure.
Is there a direct flight from New York to Ontario?
Yes, the cheapest nonstop return found recently is $523 with jetBlue, 10 Sept 2027 to 17 Sept 2027, found 3 days ago. The cheapest nonstop one-way found recently is $357 with jetBlue, 16 Sept 2027, found 3 days ago.
How long is the flight from New York to Ontario?
The cheapest nonstop one-way found recently, with jetBlue on 16 Sept 2027, takes 6 h 15 min from John F. Kennedy International Airport (JFK) to Ontario International Airport (ONT). The cheapest one-way found recently, with Alaska Airlines on 9 Mar 2027, takes 11 h 10 min with 1 stop.
Which airlines have the cheapest flights from New York to Ontario?
Between 14 Nov and 10 Sept 2027, Alaska Airlines has the cheapest return on 8 of the 15 departure dates we hold, Southwest Airlines on 3 and United Airlines on 2. Between 14 Nov and 19 Sept 2027, Alaska Airlines has the cheapest one-way on 14 of the 16 departure dates we hold, American Airlines on 1 and Southwest 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