Best round trip available now
⏳
RT prices 8% above average — wait if your dates are flexible
₹25,928
return ticket · per person · 2 nights
· Thai Lion Air
Outbound
2026-09-14
₹12,583
Return
2026-09-16
₹13,345
₹12,583
12-month low RT
₹23,920
12-month avg RT
Sep
Cheapest month
18,174
Fares tracked
Best Kolkata–Chiang Mai return dates
Top 6 combos sorted by deal score
BEST DEAL
₹25,928
09 14 → 09 16
2 nights
Thai Lion Air
₹26,879
09 12 → 09 15
3 nights
Thai Vietjet Air
₹27,164
09 12 → 09 16
4 nights
Thai Vietjet Air
₹27,192
09 14 → 09 19
5 nights
Thai Lion Air
₹27,346
09 14 → 09 28
14 nights
Thai Lion Air
₹27,354
09 26 → 09 28
2 nights
Thai Vietjet Air
Per person · Economy · Both legs included
Price by trip length
Cheapest RT found per stay duration
Longer stays often unlock cheaper per-night fares when airlines fill mid-week seats.
When to book for the best price
Average one-way fare by booking window
0-7 days
₹40,334
1,201 fares
8-14 days
₹35,440
1,187 fares
15-30 days
₹30,347
2,912 fares
31-60 days
₹28,865
5,273 fares
61-90 days
₹35,513
5,749 fares
Booking at the optimal window saves ₹11,469 per ticket vs last-minute fares.
Best month for Kolkata–Chiang Mai round trip
Monthly average fare · weather · crowds
Jul
Dec
| Month | Avg OW fare | OW low | Verdict |
|---|---|---|---|
| Jul | ₹56,205 | ₹40,122 | Expensive |
| Aug | ₹36,838 | ₹13,173 | Expensive |
| SepCHEAPEST | ₹28,452 | ₹12,583 | Expensive |
| Oct | ₹32,440 | ₹14,731 | Expensive |
| Nov | ₹39,672 | ₹14,731 | Expensive |
| Dec | ₹36,972 | ₹15,665 | Expensive |