Looking for Lucknow to Siwan one way cabs. No hidden and extra charges. Pay only for one way drop. Bookcab offers one way taxis from Lucknow to Siwan. One way taxi fare from Lucknow to Siwan ranges from INR to . Length of the road from Lucknow to Siwan is about 387 km. Approximate time to reach Siwan is 5 hours 51 mins. Hire a cab from Lucknow to Siwan one way drop with Bookcab's reliable online cab booking services. You can chose from a wide variety of cars including a/c and non a/c, from Hatch back, Sedan and SUV's for your Lucknow to Siwan one way taxi.