How the cheapest fare moved
Jul 23: €55 €55
Jul 17
Jul 23
low €55 · high €73
Departure-day prices · September 2026 Sofia → Istanbul
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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Return-day prices · September 2026 Istanbul → Sofia
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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
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: Aug — fares from €55 and ~30°C daytime.
Flights from Sofia to Istanbul start around €55 (direct flights available). Range seen recently: €55–61, based on 30 fares found by travellers.
Fly (from €55)
1h 15m duration
€55–61 recent fares
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Cheapest cached fares Sofia → Istanbul; direct flights available (e.g. PC). · Based on 30 fares found by travellers in the last 48h
Cheapest round trips to Istanbul Fares found by travellers in the last 48 hours — refreshed daily.
Aug 3 – Aug 6
Pegasus Airlines · Direct · 1h 15m
€108
Book
Jul 28 – Jul 30
Pegasus Airlines · Direct · 1h 15m
€108
Book
Aug 17 – Aug 20
Pegasus Airlines · Direct · 1h 15m
€109
Book
Sep 2 – Sep 4
Pegasus Airlines · Direct · 1h 15m
€115
Book
Aug 31 – Sep 6
Pegasus Airlines · Direct · 1h 15m
€115
Book
Aug 3 – Aug 5
Pegasus Airlines · Direct · 1h 15m
€117
Book
Aug 2 – Aug 8
Pegasus Airlines · Direct · 1h 15m
€117
Book
Aug 11 – Aug 12
Pegasus Airlines · Direct · 1h 15m
€118
Book
Weather in Istanbul
Thu
☁️
26°
21°
💧30%
Fri
☁️
26°
20°
💧3%
Sat
🌧️
22°
20°
💧76%
Sun
🌤️
26°
20°
💧25%
Mon
🌤️
29°
20°
💧0%
Tue
☁️
30°
24°
💧8%
Wed
🌤️
26°
21°
💧8%
In Sep, Istanbul typically sees ~25°C daytime highs and 4 rainy days.
Where to stay in Istanbul 3★+ hotels from €56/night (40 hotels sampled, ~3 weeks out).
Akgun Istanbul Hotel, WorldHotels Crafted Collection
hotel · Istanbul
from €56/night ★ 5
Ramada by Wyndham Istanbul Old City
hotel · Istanbul
from €68/night ★ 4
Millennium Istanbul Golden Horn
hotel · Istanbul
from €69/night ★ 5
Good to know Currency TRY · €1 ≈ 53.87
Power plugs Type C/F
Border Passport/ID checks apply
Time difference Same time zone
Time in the air 1h 15m
Things to do in Istanbul Top-rated tours and tickets from €30 — 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 Sofia 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 2026-07-23. Some links earn Stayonomy a commission at no cost to you.
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