Cheap flights from Ontario to Jakarta from $988 ONT → CGK
Ontario International Airport (ONT) → Soekarno-Hatta International Airport (CGK)
The cheapest return found recently is $988 with Korean Air, 28 Dec – 15 Jan 2027, found 2 days ago.
- Cheapest return found recently
- $988, 28 Dec to 15 Jan 2027
- Usual return price
- $1,164 to $1,811
Return
The cheapest return fare on each of 3 departure dates is usually $1,164 to $1,811.
Cheapest return found recently
$988
28 Dec – 15 Jan 2027 · Korean Air
Ontario International Airport (ONT) → Soekarno-Hatta International Airport (CGK)
Leaves 5:38 p.m. · Return leaves 6:30 p.m. · 73 h 17 min of travel, both ways together
out 2 stops, back 2 stops
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$988 28 Dec – 15 Jan 2027found 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 32 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $793 to $1,698.
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 9 Dec to 28 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 18-night return fares leaving within 3 days of 28 Dec to compare.
Every date we hold
7 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 9 Dec – 27 Dec | $1,340 | China Airlines | Ontario International Airport (ONT) → Soekarno-Hatta International Airport (CGK) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 13 Dec – 3 Jan 2027 | $2,281 | China Airlines | Ontario International Airport (ONT) → Soekarno-Hatta International Airport (CGK) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 28 Dec – 15 Jan 2027 | $988 | Korean Air | Ontario International Airport (ONT) → Soekarno-Hatta International Airport (CGK) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
Airlines on the cheapest dates: China Airlines, Korean Air.
Premium cabin fares from Ontario to Jakarta
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 28 Dec – 15 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ontario to Jakarta?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (32 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 |
|---|---|---|---|---|
| 14–29 days | $793 | $793 | Cheapest seen | 10 |
| 30–59 days | $1,529 | $988 | +93% | 10 |
| 180+ days | $1,238 | $1,238 | +56% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Los Angeles → Jakarta
56 km from Ontario
$985
$3 less than flying from Ontario
28 Dec – 15 Jan 2027 · LAX → CGK · out 1 stop, back 1 stop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 28 Dec – 15 Jan 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 Ontario to Jakarta?
The cheapest return found recently is $988 with Korean Air, 28 Dec to 15 Jan 2027, found 2 days ago. The cheapest return fare on each of 3 departure dates is usually $1,164 to $1,811.
How far ahead should I book a flight from Ontario to Jakarta?
In 32 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure.
Which airlines have the cheapest flights from Ontario to Jakarta?
Between 9 Dec and 28 Dec, China Airlines has the cheapest return on 2 of the 3 departure dates we hold, and Korean Air 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