AirHint found the following cheapest one-way flights from Lucknow (LKO) to San Francisco (SFO) in September 2025 (see full year).
One-Way flights
| 28 Sep | IndiGo | ||
| 29 Sep | Air India | ||
| 27 Sep | IndiGo |
Also check the deals for return flights from Lucknow to San Francisco in September.
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