Published by Travelxploria on Mon Jan 05 2026

If you are planning a trip to Vietnam, flight cost is one of the biggest factors that can impact your total budget. Knowing the best time to book Kolkata to Vietnam flights can help you save a significant amount while avoiding unnecessary stress.
This guide explains the cheapest months, ideal booking window, seasonal price trends, and smart tips to get better fares from Kolkata to major cities in Vietnam.
Flights from Kolkata to Vietnam usually operate with one stop, commonly via Bangkok, Kuala Lumpur, or Singapore. Prices fluctuate based on demand, seasonality, airline inventory, and how early you book.
On average, round-trip economy fares range between ₹22,000 to ₹45,000, depending on timing and travel dates.
The most reliable window to book Kolkata to Vietnam flights is 2 to 3 months before departure. During this period, airlines typically release competitive fares before prices rise due to demand.
Ideal booking window: 60 to 90 days before travel
Best for leisure travelers and couples
Helps secure better seat options and flexible timings
Last-minute bookings usually cost 25 to 40 percent more.
This period generally offers the lowest airfares.
Average return fare: ₹22,000 to ₹28,000
Fewer tourists
Occasional rain, but travel is still comfortable
Ideal for budget travelers who prioritize savings over perfect weather.
Shoulder months offer the best balance between cost and comfort.
Average return fare: ₹26,000 to ₹34,000
Pleasant weather in most regions
Good availability of flights and hotels
This is the most recommended period for couples and first-time visitors.
This is the most expensive time to fly.
Average return fare: ₹35,000 to ₹45,000 or more
High demand due to holidays and winter travel
Prices spike around Christmas, New Year, and school vacations
If traveling during peak season, booking at least 3 to 4 months in advance is strongly advised.
While not guaranteed, trends show better deals when booking on:
Tuesday or Wednesday for international flights
Late-night or early-morning searches
Flying mid-week often costs less than Friday or Sunday departures.
Common arrival airports include:
Hanoi
Ho Chi Minh City
Da Nang
Booking an open-jaw ticket, arriving in one city and departing from another, can sometimes reduce total travel time and cost.
Use fare alerts to track price drops
Be flexible with travel dates by plus or minus two days
Avoid booking during Indian festive travel weeks
Consider early morning or late-night connections
Book flights before finalizing hotels
Avoid booking flights:
Less than 15 days before departure
During major festivals without advance planning
On weekends when demand spikes
Prices during these periods are usually inflated.
The best time to book Kolkata to Vietnam flights is usually 2 to 3 months in advance, with the lowest fares found between May and September. For a balance of comfort and cost, shoulder months remain the safest choice.
Planning flights early not only saves money but also gives you better flexibility when selecting Vietnam tour packages from Kolkata, accommodations, and internal travel options