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Cheap flights from Ontario to Nha Trang from $1,038 ONT → CXR

Ontario International Airport (ONT) → Cam Ranh International Airport (CXR)

The cheapest return found recently is $1,038 with China Airlines, 29 Nov – 10 Dec, found 2 days ago.

Cheapest return found recently
$1,038, 29 Nov to 10 Dec
Usual return price
$1,012 to $1,115
Cheapest month to fly
January 2027, return fares from $996 found in the last 7 days

Return

The cheapest return fare on each of 16 departure dates is usually $1,012 to $1,115.

Cheapest return found recently

$1,038

29 Nov – 10 Dec · China Airlines

Ontario International Airport (ONT) → Cam Ranh International Airport (CXR)

Leaves 10:50 p.m. · Return leaves 9:50 a.m. · 71 h 25 min of travel, both ways together

out 2 stops, back 2 stops · via Taiwan Taoyuan International Airport (TPE), Tan Son Nhat International Airport (SGN) · overnight connection · 24 h connection

found 2 days ago

See prices for these datesCheck today's price

Cheapest nonstop return

None seen yet.

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Found recently, and the cheapest we hold

Cheapest found recently $1,038 29 Nov – 10 Decfound 2 days agoSee prices for these dates

Cheapest we hold, of any age $996 21 Jan 2027 – 6 Feb 2027found 5 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 $947 to $1,148.

$1,038, the cheapest return found recently, sits here in that range of $947 to $1,148.

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 16 departure dates from 29 Nov to 21 May 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 11-night return fares leaving within 3 days of 29 Nov to compare.

Every date we hold

50 fares on 16 departure dates

29 Nov – 10 Dec: $1,038, found 2 days ago30 Nov – 9 Dec: $1,134, found 5 days ago2 Dec – 10 Dec: $1,109, found 5 days ago15 Jan 2027 – 30 Jan 2027: $1,247, found 2 days ago16 Jan 2027 – 16 Feb 2027: $1,012, found 5 days ago21 Jan 2027 – 6 Feb 2027: $996, found 5 days ago29 Jan 2027 – 13 Feb 2027: $1,135, found 5 days ago19 Feb 2027 – 4 Mar 2027: $1,066, found 4 days ago24 Feb 2027 – 11 Mar 2027: $1,012, found 6 days ago12 Mar 2027 – 25 Mar 2027: $1,012, found 6 days ago13 Mar 2027 – 25 Mar 2027: $1,002, found 6 days ago27 Mar 2027 – 5 Apr 2027: $1,186, found 7 days ago28 Mar 2027 – 6 Apr 2027: $1,061, found 7 days ago29 Mar 2027 – 7 Apr 2027: $1,087, found 7 days ago31 Mar 2027 – 12 Apr 2027: $1,064, found 3 days ago21 May 2027 – 29 May 2027: $1,108, found 4 days agoNovDecJanFebMarMay
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
29 Nov – 10 Dec$1,038China AirlinesOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 2 stopsfound 2 days agoSee prices for these dates
30 Nov – 9 Dec$1,134Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 5 days agoSee prices for these dates
2 Dec – 10 Dec$1,109STARLUX AirlinesOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 5 days agoSee prices for these dates
15 Jan 2027 – 30 Jan 2027$1,247STARLUX AirlinesOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 2 stopsfound 2 days agoSee prices for these dates
16 Jan 2027 – 16 Feb 2027$1,012Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 5 days agoSee prices for these dates
21 Jan 2027 – 6 Feb 2027$996Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 5 days agoSee prices for these dates
29 Jan 2027 – 13 Feb 2027$1,135Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 5 days agoSee prices for these dates
19 Feb 2027 – 4 Mar 2027$1,066Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 4 days agoSee prices for these dates
24 Feb 2027 – 11 Mar 2027$1,012Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 6 days agoSee prices for these dates
12 Mar 2027 – 25 Mar 2027$1,012Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 6 days agoSee prices for these dates
13 Mar 2027 – 25 Mar 2027$1,002Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 6 days agoSee prices for these dates
27 Mar 2027 – 5 Apr 2027$1,186STARLUX AirlinesOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 7 days agoSee prices for these dates
28 Mar 2027 – 6 Apr 2027$1,061China AirlinesOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 7 days agoSee prices for these dates
29 Mar 2027 – 7 Apr 2027$1,087Korean AirOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 7 days agoSee prices for these dates
31 Mar 2027 – 12 Apr 2027$1,064China AirlinesOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 2 stopsfound 3 days agoSee prices for these dates
21 May 2027 – 29 May 2027$1,108STARLUX AirlinesOntario International Airport (ONT) → Cam Ranh International Airport (CXR)out 2 stops, back 1 stopfound 4 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $996.

November 2026From $1,0382 departure dates29 Nov – 10 Dec · found 2 days agoSee prices for these dates
December 2026From $1,1091 departure date2 Dec – 10 Dec · found 5 days agoSee prices for these dates
January 2027From $996Cheapest seen4 departure dates21 Jan 2027 – 6 Feb 2027 · found 5 days agoSee prices for these dates
February 2027From $1,0122 departure dates24 Feb 2027 – 11 Mar 2027 · found 6 days agoSee prices for these dates
March 2027From $1,0026 departure dates13 Mar 2027 – 25 Mar 2027 · found 6 days agoSee prices for these dates
May 2027From $1,1081 departure date21 May 2027 – 29 May 2027 · found 4 days agoSee prices for these dates

Airlines on the cheapest dates: Korean Air, STARLUX Airlines, China Airlines.

Premium cabin fares from Ontario to Nha Trang

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 29 Nov – 10 Dec in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Ontario to Nha Trang?

Return

Fares 90 to 179 days before departure were typically 5% lower than 14 to 29 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
14–29 days$1,110$1,038+6%10
60–89 days$1,089$996+4%28
90–179 days$1,050$947Cheapest seen48
180+ days$1,151$1,032+10%47

Could a nearby airport be cheaper?

A different airport at either end can change the fare — sometimes a lot.

Return

Los Angeles → Nha Trang

56 km from Ontario

$833

$205 less than flying from Ontario

29 Nov – 10 Dec · LAX → CXR · out 2 stops, back 2 stops

found 2 days ago

See this route

Long Beach → Nha Trang

60 km from Ontario

$9,209

$8,171 more than flying from Ontario

21 May 2027 – 29 May 2027 · LGB → CXR · out 2 stops, back 1 stop

found 4 days ago

Check today's price

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 29 Nov – 10 Dec. 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 Nha Trang?

The cheapest return found recently is $1,038 with China Airlines, 29 Nov to 10 Dec, found 2 days ago. The cheapest return we hold, of any age, is $996 with Korean Air, 21 Jan 2027 to 6 Feb 2027, found 5 days ago. The cheapest return fare on each of 16 departure dates is usually $1,012 to $1,115.

What is the cheapest month to fly from Ontario to Nha Trang?

January 2027 is the cheapest month for a return, from $996, 21 Jan 2027 to 6 Feb 2027, found 5 days ago.

How far ahead should I book a flight from Ontario to Nha Trang?

In 49 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 5% lower than 14 to 29 days before departure.

Which airlines have the cheapest flights from Ontario to Nha Trang?

Between 29 Nov and 21 May 2027, Korean Air has the cheapest return on 9 of the 16 departure dates we hold, STARLUX Airlines on 4 and China Airlines on 3.

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