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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

See prices for these datesCheck today's price

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

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $362 6 Apr 2027 – 20 Apr 2027found 2 days agoSee prices for these dates

Cheapest we hold, of any age $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

14 Nov – 18 Nov: $479, found 6 days ago16 Nov – 22 Nov: $526, found 8 days ago23 Nov – 13 Dec: $892, found 4 days ago9 Dec – 12 Dec: $321, found 8 days ago1 Jan 2027 – 8 Jan 2027: $415, found yesterday2 Jan 2027 – 14 Jan 2027: $491, found 6 days ago16 Jan 2027 – 20 Jan 2027: $318, found 8 days ago25 Jan 2027 – 8 Feb 2027: $324, found 7 days ago6 Apr 2027 – 20 Apr 2027: $356, found 8 days ago13 Apr 2027 – 25 Apr 2027: $403, found 4 days ago16 Apr 2027 – 10 May 2027: $499, found 2 days ago20 Apr 2027 – 25 Apr 2027: $394, found 5 days ago24 Apr 2027 – 1 May 2027: $460, found 7 days ago30 Jun 2027 – 17 Jul 2027: $517, found 4 days ago10 Sept 2027 – 17 Sept 2027: $367, found 3 days agoNovDecJanAprJunSep
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
14 Nov – 18 Nov$479Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
16 Nov – 22 Nov$526American AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound 8 days agoSee prices for these dates
23 Nov – 13 Dec$892Southwest AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)out nonstop, back nonstopfound 4 days agoSee prices for these dates
9 Dec – 12 Dec$321Southwest AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound 8 days agoSee prices for these dates
1 Jan 2027 – 8 Jan 2027$415Southwest AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
2 Jan 2027 – 14 Jan 2027$491United AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)out 2 stops, back nonstopfound 6 days agoSee prices for these dates
16 Jan 2027 – 20 Jan 2027$318Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound 8 days agoSee prices for these dates
25 Jan 2027 – 8 Feb 2027$324Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
6 Apr 2027 – 20 Apr 2027$356Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound 8 days agoSee prices for these dates
13 Apr 2027 – 25 Apr 2027$403Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out 1 stop, back nonstopfound 4 days agoSee prices for these dates
16 Apr 2027 – 10 May 2027$499United AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
20 Apr 2027 – 25 Apr 2027$394Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out 1 stop, back nonstopfound 5 days agoSee prices for these dates
24 Apr 2027 – 1 May 2027$460Alaska AirlinesNewark Liberty International Airport (EWR) → Ontario International Airport (ONT)out 1 stop, back nonstopfound 7 days agoSee prices for these dates
30 Jun 2027 – 17 Jul 2027$517jetBlueJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out nonstop, back nonstopfound 4 days agoSee prices for these dates
10 Sept 2027 – 17 Sept 2027$367Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)out 1 stop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $318.

November 2026From $4793 departure dates14 Nov – 18 Nov · found 6 days agoSee prices for these dates
December 2026From $3211 departure date9 Dec – 12 Dec · found 8 days agoSee prices for these dates
January 2027From $318Cheapest seen4 departure dates16 Jan 2027 – 20 Jan 2027 · found 8 days agoSee prices for these dates
April 2027From $3565 departure dates6 Apr 2027 – 20 Apr 2027 · found 8 days agoSee prices for these dates
June 2027From $5171 departure date30 Jun 2027 – 17 Jul 2027 · found 4 days agoSee prices for these dates
September 2027From $3671 departure date10 Sept 2027 – 17 Sept 2027 · found 3 days agoSee prices for these dates

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

Open this tripCheck today's price

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

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Found recently, and the cheapest we hold

Cheapest found recently $183 9 Mar 2027found 2 days agoOpen this trip

Cheapest we hold, of any age $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

14 Nov: $234, found 7 days ago4 Mar 2027: $199, found 5 days ago9 Mar 2027: $183, found 2 days ago16 Mar 2027: $184, found 2 days ago18 Mar 2027: $228, found 6 days ago23 Mar 2027: $184, found 4 days ago31 Mar 2027: $183, found 4 days ago6 Apr 2027: $178, found 4 days ago20 Apr 2027: $184, found 6 days ago27 Apr 2027: $184, found 6 days ago16 May 2027: $281, found 7 days ago22 May 2027: $227, found 8 days ago12 Sept 2027: $188, found 6 days ago14 Sept 2027: $178, found 4 days ago16 Sept 2027: $178, found 3 days ago19 Sept 2027: $184, found 5 days agoNovMarAprMaySep
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
14 Nov$234American AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)1 stopfound 7 days agoOpen this trip
4 Mar 2027$199Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 5 days agoOpen this trip
9 Mar 2027$183Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 2 days agoOpen this trip
16 Mar 2027$184Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 2 days agoOpen this trip
18 Mar 2027$228Alaska AirlinesNewark Liberty International Airport (EWR) → Ontario International Airport (ONT)1 stopfound 6 days agoOpen this trip
23 Mar 2027$184Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 4 days agoOpen this trip
31 Mar 2027$183Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 4 days agoOpen this trip
6 Apr 2027$178Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 4 days agoOpen this trip
20 Apr 2027$184Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 6 days agoOpen this trip
27 Apr 2027$184Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 6 days agoOpen this trip
16 May 2027$281Southwest AirlinesLaGuardia Airport (LGA) → Ontario International Airport (ONT)1 stopfound 7 days agoOpen this trip
22 May 2027$227Alaska AirlinesNewark Liberty International Airport (EWR) → Ontario International Airport (ONT)1 stopfound 8 days agoSee prices for these dates
12 Sept 2027$188Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 6 days agoOpen this trip
14 Sept 2027$178Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 4 days agoOpen this trip
16 Sept 2027$178Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 3 days agoOpen this trip
19 Sept 2027$184Alaska AirlinesJohn F. Kennedy International Airport (JFK) → Ontario International Airport (ONT)1 stopfound 5 days agoOpen this trip

Which month looks cheapest?

April 2027 is the cheapest month — from $178.

November 2026From $2341 departure date14 Nov · found 7 days agoOpen this trip
March 2027From $1836 departure dates9 Mar 2027 · found 2 days agoOpen this trip
April 2027From $178Cheapest seen3 departure dates6 Apr 2027 · found 4 days agoOpen this trip
May 2027From $2272 departure dates22 May 2027 · found 8 days agoSee prices for these dates
September 2027From $1784 departure dates14 Sept 2027 · found 4 days agoOpen this trip

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.

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.

See prices for these datesCheck today's price

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

See prices for these datesCheck today's price

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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
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays 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$216Cheapest seen49
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
Typical price in each booking range — one way, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
7–13 days$149$148+22%9
14–29 days$148$96+21%15
30–59 days$122$111Cheapest seen32
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

See this route

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

See this route

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

Check today's price

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

Check today's price

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

See this route

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