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Helsinki to Istanbul flights in December 2026 from $445 HEL → IST, SAW

Helsinki-Vantaa Airport (HEL) → Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW)

For departures in December 2026, the cheapest return found recently is $445 with Ryanair, 26 Dec – 10 Jan 2027, found 3 days ago.

Return

In December 2026, the cheapest return fare on each of 13 departure dates is usually $328 to $417. Across all 48 departure dates we hold on this route, it is usually $235 to $334. Of the 7 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$445

26 Dec – 10 Jan 2027 · Ryanair

Helsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)

out 1 stop, back 3 stops

found 3 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$263

1 Dec – 8 Dec · Pegasus Airlines

Helsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)

out nonstop, back nonstop

found 7 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
1 Dec – 8 Dec$263Pegasus Airlinesout nonstop, back nonstopfound 7 days agoSee prices for these dates
4 Dec – 12 Dec$279Norwegian Air Swedenout 2 stops, back nonstopfound 7 days agoSee prices for these dates
28 Dec – 30 Jan 2027$322Ryanairout 2 stops, back 1 stopfound 6 days agoSee prices for these dates
27 Dec – 30 Jan 2027$328Lufthansa City Airlinesout 1 stop, back 1 stopfound 4 days agoSee prices for these dates
23 Dec – 30 Jan 2027$353Norwegian Air Swedenout 2 stops, back 3 stopsfound 4 days agoSee prices for these dates

Every date we hold

13 departure dates

1 Dec – 8 Dec: $263, found 7 days ago4 Dec – 12 Dec: $279, found 7 days ago14 Dec – 7 Jan 2027: $362, found 6 days ago19 Dec – 7 Jan 2027: $481, found 7 days ago20 Dec – 30 Jan 2027: $368, found 6 days ago21 Dec – 21 Dec: $433, found 8 days ago23 Dec – 30 Jan 2027: $353, found 4 days ago24 Dec – 30 Dec: $417, found 7 days ago25 Dec – 7 Jan 2027: $381, found 8 days ago26 Dec – 10 Jan 2027: $445, found 3 days ago27 Dec – 30 Jan 2027: $328, found 4 days ago28 Dec – 30 Jan 2027: $322, found 6 days ago29 Dec – 8 Jan 2027: $405, found 5 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 8 Dec$263Pegasus AirlinesHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out nonstop, back nonstopfound 7 days agoSee prices for these dates
4 Dec – 12 Dec$279Norwegian Air SwedenHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back nonstopfound 7 days agoSee prices for these dates
14 Dec – 7 Jan 2027$362Norwegian Air SwedenHelsinki-Vantaa Airport (HEL) → Istanbul New Airport (IST)out 2 stops, back 2 stopsfound 6 days agoSee prices for these dates
19 Dec – 7 Jan 2027$481FinnairHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back 2 stopsfound 7 days agoSee prices for these dates
20 Dec – 30 Jan 2027$368Norwegian Air SwedenHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back 1 stopfound 6 days agoSee prices for these dates
21 Dec – 21 Dec$433airBalticHelsinki-Vantaa Airport (HEL) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 8 days agoSee prices for these dates
23 Dec – 30 Jan 2027$353Norwegian Air SwedenHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back 3 stopsfound 4 days agoSee prices for these dates
24 Dec – 30 Dec$417FinnairHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back 2 stopsfound 7 days agoSee prices for these dates
25 Dec – 7 Jan 2027$381Norwegian Air SwedenHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back 2 stopsfound 8 days agoSee prices for these dates
26 Dec – 10 Jan 2027$445RyanairHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 1 stop, back 3 stopsfound 3 days agoSee prices for these dates
27 Dec – 30 Jan 2027$328Lufthansa City AirlinesHelsinki-Vantaa Airport (HEL) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
28 Dec – 30 Jan 2027$322RyanairHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back 1 stopfound 6 days agoSee prices for these dates
29 Dec – 8 Jan 2027$405Norwegian Air SwedenHelsinki-Vantaa Airport (HEL) → Sabiha Gokcen International Airport (SAW)out 2 stops, back 2 stopsfound 5 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $188.

November 2026From $22910 departure dates29 Nov – 4 Dec · found 7 days agoSee prices for these datesEvery date in November 2026
December 2026From $26313 departure dates1 Dec – 8 Dec · found 7 days agoSee prices for these dates
January 2027From $188Cheapest seen8 departure dates18 Jan 2027 – 25 Jan 2027 · found 2 days agoSee prices for these datesEvery date in January 2027
February 2027From $2205 departure dates5 Feb 2027 – 8 Mar 2027 · found 7 days agoSee prices for these dates
March 2027From $1934 departure dates4 Mar 2027 – 11 Mar 2027 · found 3 days agoSee prices for these dates
April 2027From $2051 departure date14 Apr 2027 – 21 Apr 2027 · found 5 days agoSee prices for these dates
May 2027From $2093 departure dates24 May 2027 – 5 Jun 2027 · found 6 days agoSee prices for these dates
July 2027From $2223 departure dates9 Jul 2027 – 18 Jul 2027 · found 2 days agoSee prices for these dates
September 2027From $2941 departure date1 Sept 2027 – 4 Sept 2027 · found 2 days agoSee prices for these dates

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