How the cheapest fare moved
Jul 31: €105 €105
Jul 24
Jul 31
low €90 · high €123
Departure-day prices · July 2026 Porto → Istanbul
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31 €297 Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Return-day prices · July 2026 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: Sep — fares from €90 and ~25°C daytime.
Flights from Porto to Istanbul start around €90 (typically 1 stop). Range seen recently: €90–106, based on 19 fares found by travellers.
Fly (from €90)
5h 15m duration
€90–106 recent fares
Book
Cheapest cached fares Porto → Istanbul; typically 1 stop (e.g. U2). · Based on 19 fares found by travellers in the last 48h
Cheapest round trips to Istanbul Fares found by travellers in the last 48 hours — refreshed daily.
Oct 12 – Oct 19
Ryanair · 1 stop · 6h 30m
€186
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Sep 22 – Sep 29
Transavia France · 1 stop · 5h 35m
€210
Book
Nov 5 – Nov 10
Wizz Air Malta · 2 stops · 6h 25m
€211
Book
Sep 21 – Sep 24
Wizz Air Malta · 2 stops · 6h 25m
€215
Book
Sep 21 – Sep 28
Wizz Air Malta · 2 stops · 6h 25m
€216
Book
Nov 4 – Nov 9
Wizz Air Malta · 2 stops · 6h 05m
€227
Book
Oct 21 – Oct 28
Wizz Air Malta · 2 stops · 6h 05m
€231
Book
Sep 8 – Sep 22
Vueling · 3 stops · 7h 15m
€231
Book
Weather in Istanbul
Fri
🌤️
27°
21°
💧0%
Sat
🌤️
28°
22°
💧0%
Sun
🌤️
29°
22°
💧0%
Mon
☁️
30°
23°
💧0%
Tue
🌤️
31°
22°
💧0%
Wed
🌤️
31°
22°
💧0%
Thu
🌤️
33°
23°
💧0%
In Jul, Istanbul typically sees ~32°C daytime highs and 0 rainy days.
Where to stay in Istanbul 3★+ hotels from €57/night (40 hotels sampled, ~3 weeks out).
Akgun Istanbul Hotel, WorldHotels Crafted Collection
hotel · Istanbul
from €57/night ★ 5
Ramada by Wyndham Istanbul Old City
hotel · Istanbul
from €61/night ★ 4
Arise Hotel Golden Horn
hotel · Istanbul
from €69/night ★ 5
Good to know Currency TRY · €1 ≈ 54.58
Power plugs Type C/F
Border Passport/ID checks apply
Time difference +2h
Time in the air 5h 35m
Things to do in Istanbul Top-rated tours and tickets from €50 — 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 2026-07-31. Some links earn Stayonomy a commission at no cost to you.
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