Your next trip, last seen at €812
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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.
One-way fare
- Lowest observed
- €812, departing 31 Oct 2026 (Last checked: 20 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 73Check live prices for this route
- Airlines seen
- Aer Lingus, Air Canada, Air Caraibes, AJet, Caribbean Airlines, Corendon Dutch Airlines, French Bee, InterCaribbean Airways, JetBlue, Lufthansa, Norse Atlantic Airways, Pegasus Airlines, Ryanair, Ryanair UK, TAP Air Portugal, TUI Airways, Turkish Airlines, Virgin Atlantic, WestJet (19)
- Typical journey time
- 42h 45m
About this route
Explore the fares we observed from Castries to Istanbul. Prices move often, so pick your dates to see the latest options.
- Route distance
- 8,991 km
- Typical journey time
- 42h 45m
- Airlines seen
- Aer Lingus, Air Canada, Air Caraibes, AJet, Caribbean Airlines, Corendon Dutch Airlines, French Bee, InterCaribbean Airways, JetBlue, Lufthansa, Norse Atlantic Airways, Pegasus Airlines, Ryanair, Ryanair UK, TAP Air Portugal, TUI Airways, Turkish Airlines, Virgin Atlantic, WestJet (19)
- Seen on fares with a connection
- JetBlue, Pegasus Airlines, Air Canada, Caribbean Airlines, Aer Lingus, Ryanair, InterCaribbean Airways, WestJet, TUI Airways, TAP Air Portugal (10)
- Alternative airports
- UVF, SAW
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Airport to city: straight-line distance
- George F. L. Charles Airport (SLU) → Castries, city gazetteer reference point (13.9941, -61.0069): ≈ 3 km.
- Hewanorra International Airport (UVF) → Castries, city gazetteer reference point (13.9941, -61.0069): ≈ 30 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
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €586 | 12 |
| November 2026 | €569 | 30 |
| December 2026 | €573 | 20 |
| January 2027 | €612 | 11 |
Lowest fare by day of the week
Cheapest day of the week from Castries to Istanbul: Sunday, from €569 (checked 13 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €588 | 9 |
| Tuesday | €586 | 11 |
| Wednesday | €585 | 10 |
| Thursday | €573 | 10 |
| Friday | €591 | 10 |
| Saturday | €574 | 12 |
| Sunday | €569 | 11 |
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 Castries to Istanbul by days until departure (8 to 30 days): €569 (checked 13 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €586 | 8 |
| 8 to 30 days | €569 | 23 |
| 31 to 60 days | €573 | 24 |
| 61 days or more | €612 | 18 |
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.
Lowest one-way fare we saw per airline
Cheapest airline from Castries to Istanbul: JetBlue, from €573 (checked 13 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| JetBlue | €573Dec 10, 2026 | 29 |
| Pegasus Airlines | €586Nov 17, 2026 | 9 |
| WestJet | €586Oct 25, 2026 | 3 |
| Air Canada | €591Nov 2, 2026 | 5 |
| InterCaribbean Airways | €594Nov 29, 2026 | 3 |
| Aer Lingus | €599Nov 18, 2026 | 3 |
| Caribbean Airlines | €625Oct 27, 2026 | 4 |
| Ryanair | €625Nov 25, 2026 | 3 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Castries to Istanbul?
The lowest fare we have observed is €812, found on 20 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Castries to Istanbul?
In our observations October 2026 is the cheapest month so far, at €812.
Are there direct flights from Castries to Istanbul?
Our data holds no non-stop flight from Castries to Istanbul. The fares on this page include at least one stop.
Which airlines fly from Castries to Istanbul?
These are the carriers we have seen on the route: Aer Lingus, Air Canada, Air Caraibes, AJet, Caribbean Airlines, Corendon Dutch Airlines, French Bee, InterCaribbean Airways, JetBlue, Lufthansa, Norse Atlantic Airways, Pegasus Airlines, Ryanair, Ryanair UK, TAP Air Portugal, TUI Airways, Turkish Airlines, Virgin Atlantic, WestJet (19).
How long does the flight from Castries to Istanbul take?
The average journey time across the 74 fares we observed is 40h 58m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Castries to Istanbul fares were non-stop?
None of the 78 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from Castries to Istanbul?
Cheapest day of the week from Castries to Istanbul: Sunday, from €569 (checked 13 Oct 2026).
Which airline has the lowest fare from Castries to Istanbul?
Cheapest airline from Castries to Istanbul: JetBlue, from €573 (checked 13 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: 20 Oct 2026