Cheapest€335.26
- Bahamasair B938310:416h 16m16:57Honolulu HNLOntario ONT
Door to door 9h 26mCO2 636.3 kgChanges 0Fixed, no changes
Honolulu to Ontario flight
Flights from Honolulu to Ontario start at €404.88 and take 9h at their fastest.
The Flights from Honolulu to Ontario starts at €404.88 and takes 9h door to door, run by 3 operators over 4,299 km, with around 16 departures a day. Fares bottom out about 60 days before departure.
- 9hDoor to door
- 5h 50mMoving
- €404.88From
- 636.3 kgCO2
The cheapest and the fastest on 29 September 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€445.00
- Alaska Airlines AA913918:535h 50m00:43Honolulu HNLOntario ONT
Door to door 9hCO2 636.3 kgChanges 0Fixed, no changes
Lowest CO2€432.60
- American Airlines AA814307:306h 30m14:00Honolulu HNLLos Angeles LAX
- Amtrak California AC967615:2233m15:55Los Angeles Union StationEast Ontario
Changes at Los Angeles, with 82 minutes between services and a walk of about 14 minutes.
Door to door 10h 22mCO2 630.2 kgChanges 1Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 Alaska Airlines | €337.03 |
 Hawaiian Airlines | €342.34 |
 Bahamasair | €335.26 |
The flight gets you into Ontario. It does not get you a bed, and neither do we.
Looking for somewhere to stay in Ontario?
Hotels and flats near the centre, most of them with free cancellation, on a map that shows what is walkable.
Search Ontario on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Honolulu to Ontario
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €418.4590 days
- €272.7260 days
- €280.9845 days
- €276.8530 days
- €398.9821 days
- €529.3714 days
- €630.857 days
- €605.483 days
- €852.101 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €272.72.
- How much it moves
- The gap between the cheapest and dearest lead time is 212 percent. The dearest point is €852.10, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €479.22Sun
- €404.88Mon
- €404.88Tue
- €466.83Wed
- €536.45Thu
- €521.11Fri
- €529.37Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Honolulu
Air
- HNL
Ontario
Air
- ONT
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 75% of the services we sell on this corridor run through without a change. The remaining 25% involve one connection.
- How far it really runs
- The route covers 4,299 km against 4,174 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Los Angeles, Long Beach, San Diego, San Jose. The gap between arriving and leaving is 82 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 12 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Honolulu at 06:22 and the last at 18:53, across 16 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Honolulu to Ontario
The questions people actually ask about this journey, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Honolulu to Ontario take?
The Flight from Honolulu to Ontario takes 9h door to door, of which 5h 50m is spent moving. The route runs 4,299 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Honolulu to Ontario cost?
The Flight from Honolulu to Ontario starts at €404.88 for one passenger, checked on 12 September 2026. A typical fare is €408.13. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Honolulu to Ontario?
3 operators run the Flight from Honolulu to Ontario: Alaska Airlines, Hawaiian Airlines, Bahamasair. Between them they file around 16 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Honolulu to Ontario use?
The Flight from Honolulu to Ontario leaves from Honolulu HNL and arrives at Ontario ONT. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Honolulu to Ontario?
Fares for the Flight from Honolulu to Ontario bottom out around 60 days ahead, at €272.72. The gap between the cheapest and dearest lead time across the window is 212 percent, measured on 12 September 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Honolulu to Ontario produce?
The Flight from Honolulu to Ontario produces about 636.3 kg of CO2 per passenger over 4299 km, which works out at roughly 148 grams per passenger kilometre. That figure is for the whole journey and for one traveller, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modelled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Honolulu to Ontario on 12 September 2026: 4299 km of route against 4174 km in a straight line, 16 services a day, 3 operators, a cheapest fare of €404.88, and 9h door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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