Your next trip, last seen at €46
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €46, departing 14 Dec 2026 (Last checked: 11 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 112Check live prices for this route
- Airlines seen
- Turkish Airlines, Aegean Airlines, Air Serbia, Buzz, LOT Polish Airlines, Lufthansa +3 more
- Reported fastest flight
- 1h 15m
- Non-stop
- Yes
About this route
Explore the fares we observed from Sofia to Istanbul. Prices move often, so pick your dates to see the latest options.
- Route distance
- 505 km
- Reported fastest flight
- 1h 15m
- Airlines seen
- Turkish Airlines, Aegean Airlines, Air Serbia, Buzz, LOT Polish Airlines, Lufthansa +3 more
- Alternative airports
- SAW
Route-level information; individual journeys vary.
Published schedules report non-stop service with Turkish Airlines. Check current timetables.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| Pegasus Airlines | 27 / 112 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Sofia Airport (SOF) → Sofia, city gazetteer reference point (42.6977, 23.3219): ≈ 7 km.
- Sabiha Gökçen Airport (SAW) → Istanbul, city gazetteer reference point (41.0082, 28.9784): ≈ 30 km.
- Istanbul Airport (IST) → Istanbul, city gazetteer reference point (41.0082, 28.9784): ≈ 35 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Sofia to Istanbul: December 2026, from €46 (checked 11 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €54 | 20 |
| November 2026 | €49 | 30 |
| December 2026 | €46 | 30 |
| January 2027 | €50 | 22 |
| February 2027 | €52 | 10 |
Lowest fare by day of the week
Cheapest day of the week from Sofia to Istanbul: Monday, from €46 (checked 11 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €46 | 17 |
| Tuesday | €49 | 17 |
| Wednesday | €50 | 17 |
| Thursday | €50 | 15 |
| Friday | €49 | 16 |
| Saturday | €49 | 15 |
| Sunday | €48 | 15 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Sofia to Istanbul by days until departure (61 days or more): €46 (checked 11 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €69 | 8 |
| 8 to 30 days | €49 | 23 |
| 31 to 60 days | €49 | 30 |
| 61 days or more | €46 | 51 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Sofia to Istanbul?
The lowest fare we have observed is €46, found on 11 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Sofia to Istanbul?
Cheapest month from Sofia to Istanbul: December 2026, from €46 (checked 11 Oct 2026).
Are there direct flights from Sofia to Istanbul?
Yes. We have seen non-stop flights on this route, flown by Turkish Airlines.
Which airlines fly from Sofia to Istanbul?
These are the carriers we have seen on the route: Turkish Airlines, Aegean Airlines, Air Serbia, Buzz, LOT Polish Airlines, Lufthansa +3 more.
How long does the flight from Sofia to Istanbul take?
The average journey time across the 33 fares we observed is 1h 29m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Sofia to Istanbul fares were non-stop?
112 of the 125 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which airlines had non-stop offers on at least 3 departure dates from Sofia to Istanbul?
For Sofia to Istanbul, examples of observed one-way non-stop offers checked within the last 14 days: Pegasus Airlines (27). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which day of the week is cheapest from Sofia to Istanbul?
Cheapest day of the week from Sofia to Istanbul: Monday, from €46 (checked 11 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 11 Oct 2026