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Heihe to Sanya flights in December 2026 from $325 HEK → SYX

Heihe Airport (HEK) → Sanya Phoenix International Airport (SYX)

For departures in December 2026, the cheapest return found recently is $687 with Chengdu Airlines, 21 Dec – 31 Dec, found 2 days ago. The cheapest one-way found recently is $325 with Juneyao Airlines, 3 Dec, found 5 days ago.

Return

In December 2026, the cheapest return fare on each of 8 departure dates is usually $715 to $838. Across all 32 departure dates we hold on this route, it is usually $693 to $1,070. Of the 5 months with enough return fares to compare, 1 is usually cheaper than December 2026.

Cheapest return found recently

$687

21 Dec – 31 Dec · Chengdu Airlines

Heihe Airport (HEK) → Sanya Phoenix International Airport (SYX)

out 1 stop, back 1 stop

found 2 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
21 Dec – 31 Dec$687Chengdu Airlinesout 1 stop, back 1 stopfound 2 days agoSee prices for these dates
29 Dec – 9 Jan 2027$695Chengdu Airlinesout 1 stop, back 2 stopsfound 5 days agoSee prices for these dates
25 Dec – 10 Jan 2027$722China Southern Airlinesout 2 stops, back 2 stopsfound 3 days agoSee prices for these dates
28 Dec – 9 Jan 2027$727China Easternout 1 stop, back 2 stopsfound 5 days agoSee prices for these dates
23 Dec – 10 Jan 2027$766China Southern Airlinesout 1 stop, back 2 stopsfound 2 days agoSee prices for these dates

Every date we hold

8 departure dates

21 Dec – 31 Dec: $687, found 2 days ago23 Dec – 10 Jan 2027: $766, found 2 days ago25 Dec – 10 Jan 2027: $722, found 3 days ago27 Dec – 12 Jan 2027: $852, found 3 days ago28 Dec – 9 Jan 2027: $727, found 5 days ago29 Dec – 9 Jan 2027: $695, found 5 days ago30 Dec – 13 Jan 2027: $833, found 5 days ago31 Dec – 13 Jan 2027: $852, found 5 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
21 Dec – 31 Dec$687Chengdu AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
23 Dec – 10 Jan 2027$766China Southern AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 1 stop, back 2 stopsfound 2 days agoSee prices for these dates
25 Dec – 10 Jan 2027$722China Southern AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 2 stops, back 2 stopsfound 3 days agoSee prices for these dates
27 Dec – 12 Jan 2027$852Chengdu AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
28 Dec – 9 Jan 2027$727China EasternHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 1 stop, back 2 stopsfound 5 days agoSee prices for these dates
29 Dec – 9 Jan 2027$695Chengdu AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 1 stop, back 2 stopsfound 5 days agoSee prices for these dates
30 Dec – 13 Jan 2027$833Chengdu AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 1 stop, back 3 stopsfound 5 days agoSee prices for these dates
31 Dec – 13 Jan 2027$852Chengdu AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)out 1 stop, back 3 stopsfound 5 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $529.

November 2026From $529Cheapest seen5 departure dates16 Nov – 27 Nov · found 7 days agoSee prices for these dates
December 2026From $6878 departure dates21 Dec – 31 Dec · found 2 days agoSee prices for these dates
January 2027From $6517 departure dates11 Jan 2027 – 20 Jan 2027 · found 3 days agoSee prices for these datesEvery date in January 2027
February 2027From $7871 departure date11 Feb 2027 – 18 Feb 2027 · found 3 days agoSee prices for these dates
March 2027From $7666 departure dates5 Mar 2027 – 15 Mar 2027 · found 4 days agoSee prices for these dates
April 2027From $1,1761 departure date1 Apr 2027 – 11 Apr 2027 · found 4 days agoSee prices for these dates
May 2027From $1,6323 departure dates18 May 2027 – 28 May 2027 · found 4 days agoSee prices for these dates
June 2027From $1,6521 departure date1 Jun 2027 – 19 Jun 2027 · found 5 days agoSee prices for these dates

One-way

We hold one-way fares on only 2 departure dates in December 2026, too few to say what one usually costs.

Cheapest one-way found recently

$325

3 Dec · Juneyao Airlines

Heihe Airport (HEK) → Sanya Phoenix International Airport (SYX)

1 stop

found 5 days ago

Open this tripCheck today's price

Cheapest we hold, of any age

$323

10 Dec · Juneyao Airlines

Heihe Airport (HEK) → Sanya Phoenix International Airport (SYX)

1 stop

found 8 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
10 Dec$323Juneyao Airlines1 stopfound 8 days agoSee prices for these dates
3 Dec$325Juneyao Airlines1 stopfound 5 days agoOpen this trip

Every date we hold

2 departure dates

3 Dec: $325, found 5 days ago10 Dec: $323, found 8 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec$325Juneyao AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)1 stopfound 5 days agoOpen this trip
10 Dec$323Juneyao AirlinesHeihe Airport (HEK) → Sanya Phoenix International Airport (SYX)1 stopfound 8 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $294.

November 2026From $294Cheapest seen3 departure dates21 Nov · found 2 days agoOpen this trip
December 2026From $3232 departure dates10 Dec · found 8 days agoSee prices for these dates
January 2027From $3802 departure dates9 Jan 2027 · found 8 days agoSee prices for these datesEvery date in January 2027
February 2027From $4153 departure dates28 Feb 2027 · found 6 days agoOpen this trip
March 2027From $3293 departure dates13 Mar 2027 · found 4 days agoOpen this trip
April 2027From $6712 departure dates24 Apr 2027 · found 7 days agoOpen this trip
May 2027From $7781 departure date15 May 2027 · found 4 days agoOpen this trip

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