How the cheapest fare moved
Oct 8: €103 €103
Oct 1
Oct 8
low €91 · high €135
Departure-day prices · October 2017 Porto → Istanbul
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Return-day prices · October 2017 Istanbul → Porto
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Best time to visit Istanbul — climate Jan: ~11°C daytime, 9 rainy days
11°
Jan Feb: ~7°C daytime, 15 rainy days
7°
Feb Mar: ~17°C daytime, 10 rainy days
17°
Mar Apr: ~16°C daytime, 8 rainy days
16°
Apr May: ~23°C daytime, 9 rainy days
23°
May Jun: ~29°C daytime, 1 rainy days
29°
Jun Jul: ~32°C daytime, 0 rainy days
32°
Jul Aug: ~30°C daytime, 2 rainy days
30°
Aug Sep: ~25°C daytime, 4 rainy days
25°
Sep Oct: ~19°C daytime, 12 rainy days
19°
Oct Nov: ~18°C daytime, 8 rainy days
18°
Nov Dec: ~12°C daytime, 14 rainy days
12°
Dec Best value: Nov — fares from €101 and ~18°C daytime.
Flights from Porto to Istanbul start around €91 (typically 2 stops). Range seen recently: €91–109, based on 18 fares found by travellers.
Fly (from €91)
5h 15m duration
€91–109 recent fares
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Cheapest cached fares Porto → Istanbul; typically 2 stops (e.g. W4). · Based on 18 fares found by travellers in the last 48h
Cheapest round trips to Istanbul Fares found by travellers in the last 48 hours — refreshed daily.
Jan 14 – Jan 20
Turkish Airlines · Direct · 4h 30m
€207
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Nov 19 – Nov 22
Turkish Airlines · Direct · 4h 40m
€209
Book
Feb 1 – Feb 4
Turkish Airlines · Direct · 4h 30m
€217
Book
Nov 18 – Nov 25
Turkish Airlines · Direct · 4h 30m
€218
Book
Dec 18 – Jan 9
Vueling · 1 stop · 5h 20m
€222
Book
Nov 18 – Nov 21
Turkish Airlines · Direct · 4h 30m
€226
Book
Nov 19 – Nov 26
Turkish Airlines · Direct · 4h 40m
€226
Book
Dec 1 – Dec 8
Turkish Airlines · Direct · 4h 30m
€226
Book
Weather in Istanbul
Thu
🌫️
20°
11°
💧0%
Fri
☀️
23°
15°
💧0%
Sat
☀️
25°
16°
💧0%
Sun
☁️
25°
16°
💧0%
Mon
🌧️
25°
18°
💧30%
Tue
🌦️
18°
15°
💧47%
Wed
🌧️
15°
14°
💧54%
In Oct, Istanbul typically sees ~18°C daytime highs and 8 rainy days.
Where to stay in Istanbul 3★+ hotels from €64/night (38 hotels sampled, ~3 weeks out).
Ramada By Wyndham Istanbul Pera
hotel · Istanbul
from €64/night ★ 4
Akgun Istanbul Hotel, WorldHotels Crafted
hotel · Istanbul
from €67/night ★ 5
Arise Hotel Golden Horn
hotel · Istanbul
from €68/night ★ 4
Good to know Currency TRY · €1 ≈ 54.98
Power plugs Type C/F
Border Passport/ID checks apply
Time difference +2h
Time in the air 4h 30m
Things to do in Istanbul Top-rated tours and tickets from €27 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
About Istanbul
Istanbul (Turkish: İstanbul) is a very large city of fantastic history, culture and beauty. Called Byzantium in ancient times, the city's name was changed to Constantinople in 324 CE when it was rebuilt by the first Christian Roman Emperor, Constantine. The name "Istanbul", perhaps surprisingly, comes from Greek and could be translated as a corruption of "to the city".
Read the full Istanbul guide
Guide content from Wikivoyage contributors (CC BY-SA).
Popular from Porto Cheapest destinations travellers searched recently — refreshed daily.
Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo ; exchange rates: ECB reference. Data updated 2026-10-08. Some links earn Stayonomy a commission at no cost to you.
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