Cheapest Month to Fly to Thailand from India: Full Month-by-Month Price Guide
If you want to know what is the cheapest month to fly to Thailand, target May, June, or September: shoulder months with monsoon rain, low tourist demand, and aggressive airline sales. Planning the wider region? Our Southeast Asia backpacking hub covers the full multi-country route.
Round-trip fares from Delhi and Mumbai can drop below ₹18,000 (~$186.56) in those months, and flying Tuesday or Wednesday instead of Friday or Saturday typically saves another ₹2,000 (~$20.73) to ₹4,000 (~$41.46) on the same route.
This guide breaks down every month from a price standpoint, names the specific airlines that drop fares in each window, and flags the monsoon and festival traps that push prices back up.
Quick Answers
| What | Answer | Price (INR) |
|---|---|---|
| Cheapest month overall | May or September | ₹16,000-₹18,000 (~$165.83-$186.56) |
| Cheapest day of the week to fly | Tuesday or Sunday afternoon | Saves ₹2,000-₹4,000 (~$20.73-$41.46) |
| Most expensive month | December (Christmas. NYE peak) | ₹35,000-₹55,000 (~$362.76-$570.06) |
| Best budget airline | Thai Vietjet / IndiGo | ₹15,000-₹20,000 (~$155.47-$207.29) |
| Cheapest departure city in India | Delhi, Mumbai, Kolkata | From ₹14,500 (~$150.29) |
| Advance booking sweet spot | 6–8 weeks before departure | Saves 15–25% |
| Round-trip average for year | Mid-range months | ₹22,000-₹28,000 (~$228.02-$290.21) |
Prices reflect round-trip economy from major Indian metros (Delhi, Mumbai, Bengaluru, Kolkata) to Bangkok Don Mueang or Suvarnabhumi, based on fares checked across aggregators and airline sites on 17 July 2026. Shoulder-month fares assume Tuesday or Wednesday departure.
Month-by-Month Airfare Breakdown
| Month | Round-trip range (Delhi/Mumbai. Bangkok) | Demand | Verdict |
|---|---|---|---|
| January | ₹28,000-₹40,000 (~$290.21-$414.59) | High (cool dry season, NYE overflow) | Avoid if flexible |
| February | ₹24,000-₹32,000 (~$248.75-$331.67) | Moderate, high (Chinese New Year spike) | Book early |
| March | ₹20,000-₹28,000 (~$207.29-$290.21) | Moderate (last month of cool season) | Solid value |
| April | ₹18,500-₹25,000 (~$191.75-$259.12) | Low, moderate (Songkran pulls leisure but not flights) | Good value |
| May | ₹15,500-₹20,000 (~$160.65-$207.29) | Low (start of monsoon) | Cheapest tier |
| June | ₹16,000-₹22,000 (~$165.83-$228.02) | Low (monsoon, school exams in India) | Cheapest tier |
| July | ₹19,000-₹26,000 (~$196.93-$269.48) | Moderate (rains continue, some families travel) | Mid-range |
| August | ₹22,000-₹30,000 (~$228.02-$310.94) | Moderate (Indian Independence Day week, monsoon lull) | Mid-range |
| September | ₹15,500-₹21,000 (~$160.65-$217.66) | Low (rainy season, low demand) | Cheapest tier |
| October | ₹19,000-₹26,000 (~$196.93-$269.48) | Moderate (rains ease, demand picks up) | Fair value |
| November | ₹24,000-₹34,000 (~$248.75-$352.40) | High (Loy Krathong, cool season begins) | Book 8+ weeks ahead |
| December | ₹35,000-₹55,000 (~$362.76-$570.06) | Peak (Christmas, NYE, school holidays) | Avoid if flexible |
At current rates (1 THB ≈ ₹2.87), a ₹18,000 round-trip is roughly 6,275 THB, which puts a Bangkok trip squarely in budget territory for Indian backpackers once you factor in hostel beds at 250–390 THB/night and street food at ₹115-₹230 (~40-80 THB or ~$1.19-$2.38) per dish.
The Cheapest Three Months: Why They Work
May sits at the awkward gap between Thailand’s high season ending and the southwest monsoon setting in. Thai Airways, Air India, and Thai Vietjet typically run a “Cool Off” sale in late April to fill May seats. Demand from European and East Asian tourists drops because the rains are starting; the same softness hits Indian leisure demand because students have exams.
June is when Bangkok’s rainy-season pattern is fully established. Afternoon thunderstorms are common but flights aren’t disrupted. Airlines know leisure demand is at its lowest point of the year, which is why Thai Vietjet’s mid-year sale frequently prices Bangkok from Delhi at ₹14,500-₹16,500 (~$150.29-$171.02) round-trip with a checked bag.
September is the second monsoon peak, but it sits between two Indian travel windows: summer holidays are over, and the Diwali/Dussehra rush hasn’t started. Travellers who can swing a September 10–20 departure catch the year’s lowest fares. The catch: rain can be heavy in Koh Samui and Koh Phangan on the Gulf coast, while Bangkok, Chiang Mai, and Phuket are wet but workable.
The Most Expensive Three Months
December is the worst offender. Round-trips from Delhi to Bangkok routinely cross ₹45,000 (~$466.41) in the last two weeks of the month, especially around Christmas and New Year’s Eve. Khao San Road is packed, hostels in Bangkok fill up, and Bangkok. Chiang Mai domestic flights also spike.
November is the sneaky one. Loy Krathong (the lantern festival, usually mid-November) pulls a wave of tourists from across Asia. Cool, dry weather arrives, and Indian families book school-break trips. Round-trips climb into the ₹30,000s by mid-October for November dates.
January is the cool-dry-season tail end, still expensive because of New Year overflow and Chinese New Year demand in late January or early February.
Best Day of the Week to Fly
Here’s the part competitors nail that most guides miss: the day of the week you fly matters as much as the month you fly.
- Tuesday and Wednesday are consistently the cheapest days to depart India for Bangkok. Fare data from Skyscanner and Indian aggregator sites shows mid-week departures run ₹2,000-₹4,000 (~$20.73-$41.46) cheaper than Friday or Saturday departures on identical routes.
- Sunday afternoons (especially the 16:00–19:00 red-eye window on Thai Vietjet and IndiGo) consistently show the lowest fares because leisure travellers fly out Friday or Saturday and return Sunday evening.
- Friday and Saturday are the most expensive departure days, particularly outbound. Indian leisure travellers and families favour these days, which pushes fares up by 12–18%.
- Thursday is a middle option, often ₹1,000-₹2,000 (~$10.36-$20.73) cheaper than Friday but pricier than Tuesday/Wednesday.
The most powerful combination: a Tuesday departure in the second half of May or the first half of September, which frequently prices Delhi. Bangkok round-trips at the lower end of published fare ranges.
Airlines That Drop Fares in Shoulder Months
| Airline | Best months for deals | Typical sale trigger | Baggage included? |
|---|---|---|---|
| Thai Vietjet | May, June, September | Mid-year and Songkran sales | 20 kg checked (paid add-on) |
| IndiGo | Year-round, but May/June sharpest | Monsoon Madness, monsoon sales | 7 kg cabin, 30 kg paid |
| Thai Airways | April, October | Quarterly sales | 30 kg checked included |
| Air India | Year-round, November weak | Winter and monsoon promos | 25 kg checked included |
| SpiceJet (when operational) | May/June | Aggressive flash sales | Varies |
Thai Vietjet and IndiGo compete head-to-head on the Delhi/Mumbai. Bangkok route, which is why their fares often match within a few hundred rupees. Thai Airways rarely undercuts them on price but includes a checked bag and a meal, which closes the value gap for backpackers carrying trekking or diving gear.
Subodh’s Pro Tip: Set a Google Flights alert for “Delhi to Bangkok” with the date range set to “flexible ±3 days.” You’ll get an email every time the fare drops on any day of the week, including the cheap Tuesday and Sunday slots that don’t show up if you search only on Fridays.
Cheapest Indian Departure Cities to Bangkok
Not all Indian gateways price the same. Departure city has the second-biggest impact on total fare after timing.
| Departure city | Lowest round-trip (shoulder month) | Airlines | Notes |
|---|---|---|---|
| Delhi (DEL) | ₹15,500-₹18,000 (~$160.65-$186.56) | Thai Vietjet, IndiGo, Thai Airways | Most routes, best competition |
| Mumbai (BOM) | ₹16,000-₹19,000 (~$165.83-$196.93) | IndiGo, Thai Airways | Heavy demand, but competitive |
| Kolkata (CCU) | ₹14,500-₹17,000 (~$150.29-$176.20) | Thai Airways, IndiGo | Shortest route, often cheapest |
| Bengaluru (BLR) | ₹18,500-₹22,000 (~$191.75-$228.02) | Thai Airways, IndiGo | Fewer direct flights |
| Chennai (MAA) | ₹19,000-₹24,000 (~$196.93-$248.75) | Thai Airways, IndiGo | Limited direct options |
| Hyderabad (HYD) | ₹20,000-₹26,000 (~$207.29-$269.48) | IndiGo, Thai Airways | Often requires a connection |
Kolkata beats Delhi and Mumbai on raw price because of geography: it’s the closest Indian metro to Bangkok, so fuel burn is lower and airlines price accordingly. Bangkok. Kolkata direct flights also exist on Thai Airways, which doesn’t run daily from every metro.
If you’re flexible on your Indian departure city, a cheap domestic add-on (IndiGo or SpiceJet from a Tier-2 city to one of the metros above) often beats a direct international flight from a smaller city, with the domestic leg typically adding less to the total than a direct international fare from the Tier-2 city.
How Far Ahead to Book
Indian travellers tend to book either too early (6+ months out) or too late (last week before departure). The sweet spot for Bangkok fares is:
- 6–8 weeks before departure for the cheapest fares. This is when airlines release sale inventory for shoulder months and discount remaining seats on peak months.
- 10–12 weeks for December and January travel. These flights sell out, and the cheapest fare buckets close first.
- Last-minute deals (under 3 weeks) exist in May, June, and September because airlines would rather discount than fly with empty seats, but the routes and timings are limited.
Safety Alert: Before booking any flight, verify Thailand’s current entry requirements. Indians travel visa-free for up to 60 days, but you must complete the TDAC digital arrival card at the official portal within 72 hours of departure. No fee, but required for boarding. Full India-to-Thailand visa details are in the Thailand visa guide for Indian citizens. Check the MEA travel advisory before departure for any region-specific updates.
Where to Stay Once You Land
Most cheap-fare travellers land in Bangkok. The good news: Bangkok’s hostel scene absorbs budget travellers well, and dorm beds during shoulder months are cheap.
| Hostel | Area | Rating | Price (THB) | Book |
|---|---|---|---|---|
| Nomads Bangkok Khao San Road Hostel | Khao San | 9.86 | 280–390 | Check prices |
| Hide Bangkok Hostel | Silom/Sathorn | 10.0 | 260–380 | Check prices |
| Mad Monkey Bangkok | Near Khao San | 9.64 | 320–450 | Check prices |
| Once Again Hostel | Chinatown/Yaowarat | 9.44 | 250–360 | Check prices |
| Dorm beds during May, June, and September sit at the low end of these ranges. December and January push them to the top end, sometimes higher. |
What to Do on a Budget Trip to Bangkok
Even on the cheapest months, Bangkok’s temples and street food scenes stay open.
Wat Suthat Thepwararam Ratchaworamahawihan is a historic temple in Bangkok, known for its towering red swing and stunning murals, offering a glimpse into Thailand’s rich cultural heritage. Entry is ₹287 (~100 THB or ~$2.98). Wat Suthat Thepwararam Ratchaworamahawihan tour
The Temple of the Emerald Buddha sits inside the Grand Palace compound and houses the revered Emerald Buddha statue in intricate architecture. Combined Grand Palace entry is ₹1,436 (~500 THB or ~$14.89). The Temple of the Emerald Buddha tour
The Grand Palace is the opulent royal residence showcasing Thai architecture and history. Strict dress code: shoulders and knees covered. The Grand Palace tour
Wat Arun Ratchawararam Ratchawaramahawihan, the Temple of Dawn, is a riverside icon with its striking Khmer-style prang, offering views of the Chao Phraya River. Entry is ₹287 (~100 THB or ~$2.98). Wat Arun Ratchawararam Ratchawaramahawihan tour
What to Eat
Pad thai at a Bangkok street stall runs ₹115-₹230 (~40-80 THB or ~$1.19-$2.38). Mango sticky rice is ₹144 (~50 THB or ~$1.49). Som tum (papaya salad) is ₹115 (~40 THB or ~$1.19). A bottle of water is ₹20 (~7 THB or ~$0.21). You can eat three meals a day for under ₹718 (~250 THB or ~$7.45), which is roughly ₹720 (~$7.46).
For Thai food: Aonchorn Thai restaurant on Ratchadamnoen serves classic central-Thai plates in a traditional wooden-house setting. Travellers report the green curry and tom yum here are standouts. Jim Thompson, A Thai Restaurant sits in a leafy compound near Siam and does set menus at around ₹2,297-₹3,446 (~800-1,200 THB or ~$23.83-$35.74), useful for a sit-down splurge night.
For Indian food: Indique runs Indian fine dining at around ₹1,350 (~14 USD) per person (roughly ₹1,378 (~480 THB or ~$14.30)) in an upscale setting where reviewers praise the butter chicken. Amritsr Restaurant on Sukhumvit Soi 22 specialises in North Indian cuisine, with their signature stuffed parathas at an estimated ₹2,872-₹5,743 (~1,000-2,000 THB or ~$29.79-$59.57) per person for a full thali spread.
Getting Connected
Physical SIMs at Suvarnabhumi and Don Mueang airports (AIS, dtac, TrueMove) cost ₹859-₹1,720 (~299-599 THB or ~$8.91-$17.84) with 7–15 days of data. Counter staff set the SIM up on the spot. If you’d rather skip the airport queue and have data on before you board your flight, an eSIM is the cleaner option: eSIM options from providers like Nomad. Activation is instant over Wi-Fi, packages start at 1 GB and scale up.
For ride-hailing, Grab and Bolt both work in Bangkok and use the same fare model. If you’ve used both apps in Indian cities, you’ll find Bangkok pricing roughly similar. More on which is cheaper at the Grab vs Bolt in Bangkok comparison.
Subodh’s Take
For most Indian travellers with flexible dates, the best move is a Tuesday or Wednesday departure in the second half of May or the first half of September. You’ll pay ₹15,500-₹18,000 (~$160.65-$186.56) round-trip from Delhi, catch shoulder-month hostel pricing (260–380 THB/night in Bangkok), and avoid the December crowds. The catch is rain: pack a light rain jacket and plan indoor backup days in case Bangkok’s afternoon thunderstorms lock you out of temples.
If your dates are locked, the second-best move is booking 10–12 weeks out regardless of month. Even peak December flights drop 15–20% from last-minute fares if you book in advance.
My honest ranking for Indian backpackers chasing cheap flights to Thailand:
- Second half of May, Tuesday departure, cheapest combo of price and weather
- First half of September, mid-week, same prices, wetter
- Late April, slightly pricier than May but pre-monsoon dry weather
- Late October to early November, fares still moderate before Loy Krathong surge
- Avoid December 18 to January 5 entirely if your budget matters
The flight is the first domino. Get it right and the rest of the trip, hostels, food, transport, all stays in budget range.
FAQ
When should I book flights to Thailand from India for the cheapest fare? Book 6–8 weeks before departure for the cheapest fares. May, June, and September are the cheapest months, with round-trips from Delhi as low as ₹15,500-₹18,000 (~$160.65-$186.56) on Thai Vietjet and IndiGo.
What day of the week is cheapest to fly to Bangkok from India? Tuesday and Wednesday departures are typically ₹2,000-₹4,000 (~$20.73-$41.46) cheaper than Friday or Saturday on the same route. Sunday afternoon red-eye slots also show the lowest fares in fare-comparison data.
Are flights to Thailand cheaper during monsoon? Yes, but with caveats. May, June, and September (monsoon months) consistently show the lowest fares, often 30–40% below December peaks. The trade-off is rain: Bangkok and Chiang Mai are workable, but Gulf-coast islands like Koh Samui and Koh Phangan can see heavy weather.
Which Indian city has the cheapest flights to Bangkok? Kolkata (CCU) typically has the cheapest round-trips because of its short distance to Bangkok, with fares as low as ₹14,500 (~$150.29) in shoulder months. Delhi and Mumbai follow closely with more airline options.
Do Indian airlines or Thai airlines offer cheaper fares? Both compete on price. Thai Vietjet and IndiGo are usually the cheapest, with similar fares. Thai Airways rarely undercuts them on price but includes a 30 kg checked bag and a meal, which closes the gap for backpackers carrying heavy luggage.
How much does a round-trip flight to Thailand from India cost on average? A round-trip economy ticket from Delhi, Mumbai, or Kolkata to Bangkok averages ₹22,000-₹28,000 (~$228.02-$290.21) across the year. Cheapest months (May, June, September) drop to ₹15,500-₹20,000 (~$160.65-$207.29). Peak months (December, January) climb to ₹35,000-₹55,000 (~$362.76-$570.06).
Is it cheaper to fly to Bangkok or Phuket from India? Bangkok is consistently cheaper because of more airline competition and direct flight options. Phuket has fewer direct flights from India, and fares typically run ₹3,000-₹6,000 (~$31.09-$62.19) higher than Bangkok in the same month. Bangkok is usually the smarter entry hub even if your final destination is the islands.
— Subodh
