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Kathmandu to New Delhi flights in December 2026 from $145 KTM → DEL

Tribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)

For departures in December 2026, the cheapest return found recently is $216 with IndiGo, 30 Dec – 31 Dec, found 2 days ago. The cheapest one-way found recently is $145 with IndiGo, 30 Dec, found 2 days ago.

Return

We hold return fares on only 1 departure date in December 2026, too few to say what one usually costs.

Cheapest return found recently

$216

30 Dec – 31 Dec · IndiGo

Tribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
30 Dec – 31 Dec$216IndiGoout nonstop, back nonstopfound 2 days agoSee prices for these dates

Every date we hold

1 departure date

See every date as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
30 Dec – 31 Dec$216IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)out nonstop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $201.

November 2026From $2921 departure date15 Nov – 17 Nov · found 7 days agoSee prices for these datesEvery date in November 2026
December 2026From $2161 departure date30 Dec – 31 Dec · found 2 days agoSee prices for these dates
January 2027From $201Cheapest seen2 departure dates5 Jan 2027 – 23 Feb 2027 · found 4 days agoSee prices for these datesEvery date in January 2027
February 2027From $2092 departure dates13 Feb 2027 – 7 Mar 2027 · found 2 days agoSee prices for these dates
April 2027From $2552 departure dates21 Apr 2027 – 19 May 2027 · found 4 days agoSee prices for these datesEvery date in April 2027
June 2027From $2871 departure date28 Jun 2027 – 28 Jun 2027 · found 3 days agoSee prices for these dates
July 2027From $2471 departure date5 Jul 2027 – 10 Jul 2027 · found 6 days agoSee prices for these dates

One-way

In December 2026, the cheapest one-way fare on each of 18 departure dates is usually $152 to $155. Across all 70 departure dates we hold on this route, it is usually $127 to $168. Of the 7 months with enough one-way fares to compare, 3 are usually cheaper than December 2026.

Cheapest one-way found recently

$145

30 Dec · IndiGo

Tribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)

nonstop

found 2 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

FareTell may earn a commission when you book through a partner.

The cheapest dates in December 2026

DatesFromAirlineStopsFound
30 Dec$145IndiGononstopfound 2 days agoOpen this trip
25 Dec$146IndiGononstopfound 2 days agoOpen this trip
21 Dec$149IndiGononstopfound 5 days agoOpen this trip
12 Dec$151IndiGononstopfound 7 days agoOpen this trip
22 Dec$152IndiGononstopfound 3 days agoOpen this trip

Every date we hold

18 departure dates

1 Dec: $161, found 5 days ago2 Dec: $155, found 3 days ago3 Dec: $215, found 6 days ago5 Dec: $185, found 7 days ago7 Dec: $163, found 3 days ago8 Dec: $153, found 2 days ago11 Dec: $153, found 3 days ago12 Dec: $151, found 7 days ago13 Dec: $153, found 2 days ago17 Dec: $153, found 3 days ago21 Dec: $149, found 5 days ago22 Dec: $152, found 3 days ago23 Dec: $153, found 3 days ago24 Dec: $153, found 7 days ago25 Dec: $146, found 2 days ago26 Dec: $153, found 2 days ago29 Dec: $152, found 3 days ago30 Dec: $145, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec$161IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 5 days agoOpen this trip
2 Dec$155IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 3 days agoOpen this trip
3 Dec$215Nepal AirlinesTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 6 days agoOpen this trip
5 Dec$185IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 7 days agoOpen this trip
7 Dec$163IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 3 days agoOpen this trip
8 Dec$153IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 2 days agoOpen this trip
11 Dec$153IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 3 days agoOpen this trip
12 Dec$151IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 7 days agoOpen this trip
13 Dec$153IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 2 days agoOpen this trip
17 Dec$153IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 3 days agoOpen this trip
21 Dec$149IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 5 days agoOpen this trip
22 Dec$152IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 3 days agoOpen this trip
23 Dec$153IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 3 days agoOpen this trip
24 Dec$153IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 7 days agoOpen this trip
25 Dec$146IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 2 days agoOpen this trip
26 Dec$153IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 2 days agoOpen this trip
29 Dec$152IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 3 days agoOpen this trip
30 Dec$145IndiGoTribhuvan International Airport (KTM) → Indira Gandhi International Airport (DEL)nonstopfound 2 days agoOpen this trip

Which month looks cheapest?

January 2027 is the cheapest month — from $110.

November 2026From $15310 departure dates26 Nov · found 7 days agoOpen this tripEvery date in November 2026
December 2026From $14518 departure dates30 Dec · found 2 days agoOpen this trip
January 2027From $110Cheapest seen13 departure dates16 Jan 2027 · found 2 days agoOpen this tripEvery date in January 2027
February 2027From $1255 departure dates3 Feb 2027 · found 4 days agoOpen this trip
March 2027From $12610 departure dates1 Mar 2027 · found 2 days agoOpen this tripEvery date in March 2027
April 2027From $1608 departure dates23 Apr 2027 · found 2 days agoOpen this tripEvery date in April 2027
May 2027From $1663 departure dates3 May 2027 · found 2 days agoOpen this trip
June 2027From $1752 departure dates27 Jun 2027 · found 3 days agoOpen this trip
October 2027From $1731 departure date17 Oct 2027 · found 6 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work