Flights from London to Delhi — compare routes right now

3 routes
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Not every flight from London to Delhi takes the same path right now.

3 routes assessed for this corridor. Via Istanbul scores highest.

Best option right now
Watchful 66

Via Istanbul — lower exposure than Gulf-connected options, with moderate detour impact and reasonable hub reliability.

Airspace Low
·
Added distance Moderate
·
Connection Mixed

Via Istanbul

Best
Watchful 66
Near zone airspace · ~10h 30m · Some options

Reduces Middle East airspace exposure at the cost of a hub connection and 2 additional hours. Justified if current advisory zone escalation is your primary concern.

Weakness

Route passes near an advisory zone (not through it)

Watch

IST–DEL second leg routes over Iran/Pakistan — level-1 airspace exposure. This is lower than the direct Gulf transit, but not zero.

Structural 61
Pressure now 71

Direct via Gulf Corridor

Watchful 60
Advisory airspace · ~8h 30m · Some options

Direct LHR–DEL continues to operate reliably across all three carriers. The Middle East advisory zone transit on the long direct leg is the principal risk factor.

Via Dubai

Watchful 58
Advisory airspace · ~10h 40m · Some options

Highest rebooking flexibility via Emirates, but the LHR–DXB leg crosses the active Middle East advisory zone. Use when Istanbul is sold out or disrupted.

How this is assessed

FlightDetour evaluates route options using advisory airspace exposure, corridor sensitivity, detour impact, and hub routing logic — based on publicly available EASA and national authority advisories.

Coverage focuses on major long-haul corridors. Some routing patterns — including certain China-side connections via mainland Chinese hubs — are not yet included. If you expect an option here and don't see it, that's a coverage gap, not an assessment.

Scores compare corridor quality; they do not predict airline operations or safety outcomes. Verify with your airline and government travel advisories before booking.

Full methodology →

Advisory data only · Verify before booking