Cheapest€24.38
- FlixBus FB677514:066h 48m20:54Sofia Central Bus StationIstanbul Esenler Otogar
Door to door 7h 32mCO2 13.6 kgChanges 0Changeable for a fee
Traveling from Sofia to Istanbul costs €24.38 at the cheapest and takes 4h 14m door to door at the fastest, across 2 modes and 3 operators. The route covers 511 km. Cheapest is by Coach, fastest is by Flight.
At a glance
- Distance
- 511 km
- Fastest
- 4h 14m
- Average
- 5h 48m
- Services per day
- 18
- Cheapest
- €24.38
- CO2 per passenger
- 78.5 kg
Every way to make this journey
Journey times below are door to door, so they include getting to the terminal and away from it at the other end. Fares are the cheapest we currently sell on September 22, 2026.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Flight | 4h 14m | 1h 4m | 3h 10m | €51.47 | 127.2 kg | 8 |
| Coach | 7h 32m | 6h 48m | 44m | €24.38 | 13.6 kg | 10 |
- 4h 14mFastest, by Flight
- €24.38Cheapest, by Coach
- 13.6 kgLowest CO2, by Coach
- 511 kmDistance traveled
The cheapest and the fastest on September 22, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€64.45
- Turkish Airlines TA947910:071h 4m11:11Sofia SOFIstanbul IST
Door to door 4h 14mCO2 127.2 kgChanges 0Fixed, no changes
Today's real departures
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
No live timetable for this trip yet.
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
Prices over the next three weeks
Live from our own engine, refreshed on every request. The cheapest days for each way of traveling are marked.
| Cheapest fare by mode and day for Sofia to Istanbul | WedSep 9 | ThuSep 10 | FriSep 11 | SatSep 12 | SunSep 13 | MonSep 14 | TueSep 15 | WedSep 16 | ThuSep 17 | FriSep 18 | SatSep 19 | SunSep 20 | MonSep 21 | TueSep 22 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coach | €42.53 | €54.08 | €42.53 | €42.53 | €40.33 | €39.78 | €27.13 | €29.88 | €37.03 | €33.73 | €33.73 | €31.53 | €29.33 | €24.38 |
| Flight | €87.46 | €125.81 | €81.56 | €88.64 | €79.20 | €72.12 | €63.86 | €59.73 | €78.02 | €77.43 | €71.53 | €78.02 | €59.14 | €51.47 |
Cheapest day: 2026-09-22 · €24.38
That is the traveling done. What happens after you walk out into Istanbul is not something we sell.
Rooms within reach of Istanbul Halkali
Hotels and apartments near downtown, most of them with free cancellation, on a map that shows what is walkable.
Search Istanbul on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Sofia to Istanbul
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €24.3890 days
- €22.7360 days
- €24.3845 days
- €26.0330 days
- €27.6821 days
- €24.3814 days
- €27.137 days
- €42.533 days
- €42.531 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €22.73.
- How much it moves
- The gap between the cheapest and most expensive lead time is 87 percent. The most expensive point is €42.53, 3 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Book now Fares on this route are lowest around 60 days ahead. You are inside that window.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €31.53Sun
- €29.33Mon
- €27.13Tue
- €29.88Wed
- €37.03Thu
- €33.73Fri
- €33.73Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €27.13Sep
- €26.58Oct
- €24.93Nov
- €22.18Dec
- €22.18Jan
- €19.43Feb
The route
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 78% of the services we sell on this corridor run through without a change. The remaining 22% involve one connection.
- How far it really runs
- The route covers 511 km against 502 km in a straight line, a detour of 2 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Bursa, Varna, Bucharest, Craiova. The gap between arriving and leaving is 51 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 18 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Sofia at 06:20 and the last at 18:38, across 8 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Sofia
Rail
- Sofia Central
- Sofia-Sever
- Sofia railway station
Bus
- Sofia Central Bus Station
- спирка Ехо
Air
- SOF
Istanbul
Rail
- Istanbul Halkali
- Vadistanbul
- Tünel
Bus
- Istanbul Esenler Otogar
- İGS
Air
- IST
- SAW
Ferry
- Istanbul Yenikapi
- Eminonu
IST is not in Istanbul, and the drive in from it is the part of the trip nobody plans. We sell the flight and stop at the terminal door.
A car waiting when you land in Istanbul
A price agreed before you fly, a driver at arrivals, and a car big enough for the bags.
Book a ride from IST with Welcome PickupsOr check Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.
Who runs this route
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
 FlixBus | €24.38 | 7h 18m | 72 km/h | Changeable | Power outlets, Restrooms, Wi-Fi |
 Pegasus Airlines | €49.11 | 4h 14m | 740 km/h | Fixed fare | Not published |
 Turkish Airlines | €50.29 | 4h 14m | 740 km/h | Fixed fare | Not published |
What the fare is made of
Every part of the total, so the number at checkout is the number here.
| Part | Amount | Share |
|---|---|---|
| Operator fare | €19.00 | 78% |
| Taxes | €1.90 | 8% |
| Supplier fees | €1.49 | 6% |
| Our service fee | €1.99 | 8% |
| Total you pay | €24.38 | 100% |
A day in Istanbul hauling a suitcase is a shorter day than it needs to be. We do not store bags.
Baggage storage near Istanbul Halkali
Stores, cafes and hotels that take luggage, with the hours on the map so you know what is still open when you come back.
Check Istanbul on StasherOr try Bounce
Partner links. We do not run these networks. We earn a commission on a booking, and the price is the same as going direct.
Questions about Sofia to Istanbul
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does it take to get from Sofia to Istanbul?
The fastest journey from Sofia to Istanbul takes 4h 14m door to door, of which 1h 4m is spent moving, on the Flight. Most services take around 5h 48m, because that average includes slower stopping services and journeys with a connection. Times include reaching the terminal and leaving it at the far end.
How much does it cost to travel from Sofia to Istanbul?
The cheapest fare from Sofia to Istanbul is €24.38, checked on September 22, 2026. A typical fare across the next three weeks is €60.32. Both figures are the total for one passenger, including taxes, supplier fees and our service fee, so nothing is added at checkout.
What is the cheapest way to get from Sofia to Istanbul?
The cheapest way from Sofia to Istanbul is by Coach, at €24.38 for one passenger on September 22, 2026. That journey takes 7h 32m door to door. Cheaper is rarely faster on this corridor, and the comparison table on this page shows what each mode costs against what it saves.
What is the fastest way to get from Sofia to Istanbul?
The fastest way from Sofia to Istanbul is by Flight, at 4h 14m door to door. Only 1h 4m of that is spent moving; the remaining 3h 10m is reaching the terminal and leaving it at the far end. The cheapest fare on that mode is €51.47.
When should I book Sofia to Istanbul?
Fares from Sofia to Istanbul bottom out around 60 days before departure, at €22.73. Across the whole booking window the gap between the cheapest and the most expensive lead time is 87 percent, measured on September 22, 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Sofia to Istanbul?
Tuesday is the cheapest day to depart from Sofia to Istanbul, at €27.13. That is the median of 21 priced departure days across the next three weeks, checked on September 22, 2026. Shifting a departure by one day is usually worth more than shifting the booking by one week.
Which month is cheapest for Sofia to Istanbul?
February is the cheapest of the next 6 months to travel from Sofia to Istanbul, at €19.43 for one passenger. Each month is priced on its fifteenth, so the comparison is like for like rather than a mix of weekends and midweek departures.
Who runs service from Sofia to Istanbul?
3 operators sell services from Sofia to Istanbul across 2 modes: FlixBus, Pegasus Airlines, Turkish Airlines. Journey times, fares and fare conditions differ between them, and the operator table on this page compares all of them on speed, flexibility and what is provided on board.
Is there a direct service from Sofia to Istanbul?
78 percent of the services we sell from Sofia to Istanbul are direct. The rest connect at Bursa, Varna, Bucharest, Craiova, with about 51 minutes between the two services. Both legs are sold on one booking, so a missed connection is rebooked at no charge.
How much CO2 does the journey from Sofia to Istanbul produce?
Traveling from Sofia to Istanbul by Coach produces about 13.6 kg of CO2 per passenger, the lowest of any mode on this corridor. The same journey by Flight produces about 127.2 kg, roughly 9 times as much for one passenger.
Which station or terminal do services from Sofia to Istanbul use?
Services from Sofia to Istanbul by Flight leave from Sofia SOF and arrive at Istanbul IST. Allow about 3h 10m in total for reaching the departure terminal and leaving the arrival one, which is already included in every door to door time on this page.
Can I change or refund a ticket from Sofia to Istanbul?
1 of the 3 operators we sell from Sofia to Istanbul allow a change or a refund. A change on a changeable fare costs €5.00. The operator table on this page names which is which, and the condition is shown again before you pay.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon, Distances
- On this page
- Every figure above was computed for Sofia to Istanbul on September 8, 2026: 511 km of route against 502 km in a straight line, 18 services a day, 3 operators, a cheapest fare of €24.38, and 4h 14m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
The trip is the easy half to plan. The days in Istanbul are the half people leave until last.
What to book in Istanbul before you go
Timed entry, guided walks and half-day trips out of Istanbul, with free cancellation on most of it.
See Istanbul on GetYourGuideOr browse Viator
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.
Other ways to make this journey
Arriving in Istanbul
Leaving Istanbul
- 343Places you can leave for
- 119Countries
- 105Operators
Plan a trip from here
Ask Ori for the same corridor under a different constraint, or for a longer trip that starts on it.