Cheap flights from Karnataka to Bihar from ₹ 7,735
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Karnataka to Bihar departing on 13/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air India Express flights from Karnataka to Bihar
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Fly from
Fly to
Route
Depart
Return
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Thu 10/12
10:45-12:40
Nonstop1h 55m
Patna
Sun 13/12
14:15-17:05
Nonstop2h 50m
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Thu 10/12
10:45-13:35
Nonstop2h 50m
Patna
Thu 17/12
16:25-19:15
Nonstop2h 50m
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Sun 20/12
10:45-13:35
Nonstop2h 50m
Patna
Mon 21/12
14:15-17:05
Nonstop2h 50m
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Thu 4/3
13:10-15:50
Nonstop2h 40m
Patna
Thu 25/3
11:30-14:05
Nonstop2h 35m
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Sun 22/11
17:35-20:05
Nonstop2h 30m
Patna
Thu 26/11
16:25-23:45
1 stop7h 20m
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Sun 22/11
07:25-17:35
1 stop10h 10m
Patna
Thu 26/11
16:25-23:45
1 stop7h 20m
BengaluruDarbhanga
BLR Bengaluru Intl - DBR Darbhanga
BLRDBR
Bengaluru Intl
Wed 9/12
04:10-10:50
1 stop6h 40m
Darbhanga
Thu 10/12
13:35-16:20
Nonstop2h 45m
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Thu 10/12
06:10-15:50
2 stops9h 40m
Patna
Thu 17/12
16:25-19:15
Nonstop2h 50m
BengaluruDarbhanga
BLR Bengaluru Intl - DBR Darbhanga
BLRDBR
Bengaluru Intl
Sat 28/11
04:10-10:50
1 stop6h 40m
Darbhanga
Sun 6/12
13:35-16:20
Nonstop2h 45m
BengaluruPatna
BLR Bengaluru Intl - PAT Patna
BLRPAT
Bengaluru Intl
Thu 10/12
06:10-15:50
2 stops9h 40m
Patna
Thu 17/12
16:25-19:15
Nonstop2h 50m
See travel insights to Bihar from
How to get the cheapest flight ticket from Karnataka to Bihar
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Bihar?
The cheapest month to fly to Bihar from Karnataka is in January. Flight prices, which tend to average around ₹ 15,470, are often lower during this time because this is during the off-season. If you aren’t able to travel to Bihar during the month of January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of ₹ 16,147.
What is the cheapest day to depart on your flight to Bihar?
Our data shows that Friday is the least expensive day to fly to Bihar. Tickets to fly out on this day can be as low as ₹ 16,282. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Bihar on Sunday is ₹ 18,512.
What is the cheapest time of day to depart on your flight to Bihar?
Our data shows that the cheapest Karnataka to Bihar flights are usually those with departure times in the morning. Our users have found flights to Bihar in the morning for as low as ₹ 16,573. In the evening is when there is more demand to fly to Bihar, so prices are often more expensive at around ₹ 19,698 per ticket.
What is the cheapest Karnataka to Bihar flight route?
Fly from Bengaluru Intl to Darbhanga for the best Karnataka - Bihar flight prices
How far in advance should I book a flight from Karnataka to Bihar?
You are more likely to see cheaper flights to Bihar from Karnataka when booking weeks ahead of your departure date. In general, you can expect to find flights to Bihar for around ₹ 17,065 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bihar from Karnataka for as low as ₹ 14,986 on momondo.
What cabin class options are available on Karnataka to Bihar flights?
There is only 1 cabin class available to choose from on Karnataka to Bihar flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Karnataka to Bihar?
Akasa Air, IndiGo, and Air India Express are the most popular carriers operating from Karnataka to Bihar
Which airlines fly to Bihar?
IndiGo, SpiceJet and Air India Express are the top three most popular airlines that fly to Bihar from Karnataka according to our data. IndiGo is the first choice among our users, with 54% of people opting to fly with this airline when travelling to Bihar. Keep in mind that there are 5 different airlines that fly to Bihar on a routine basis, so you have a few additional options to choose from.
How many flights depart from Karnataka to Bihar on average per day?
As of October 2026, there are 15 flights per day flying from Karnataka to Bihar. The most common time of day flights depart is 08:00, with 42% of flights taking off at midday.
How many flights depart from Karnataka to Bihar on average per week?
The number of flights available between Karnataka and Bihar is 108 per week as of October 2026. The most frequent departure day is Tue, with 15% of weekly flights leaving on this day.
Cheap Karnataka to Bihar flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Karnataka to Bihar
Frequently asked questions about flying from Karnataka to Bihar
When did momondo last update prices for flights from Karnataka to Bihar?
Prices for flights from Karnataka to Bihar were last updated today.
How many operators does momondo search for flights from Karnataka to Bihar?
There are 5 operators available for flights from Karnataka to Bihar as of October 2026.
How old do you have to be to fly from Karnataka to Bihar?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Karnataka to Bihar.
What documentation or ID do you need to fly to Bihar?
The required travel and health documents for your Bihar trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bihar. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Karnataka to Bihar?
Based on momondo bookings for flights between Karnataka and Bihar, the leading plane model is Airbus A320neo, making up 35.87% of the total bookings. Other popular models include Boeing 737 MAX 8 with 22.83%, Boeing 737 with 11.96%, and Airbus A320-100/200 with 11.65%.
Best airlines flying from Karnataka to Bihar
Compare and see reviews for airlines that fly from Karnataka to Bihar with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom ₹ 7,726 | Free Cancellation | Rating 5.5 2,916 reviews | |||
| PriceFrom ₹ 9,432 | Free Cancellation | Rating 6.8 580 reviews | |||
| PriceFrom ₹ 9,901 | Free Cancellation | Rating 8.0 22 reviews | |||
| PriceFrom ₹ 13,354 | Free Cancellation | Rating 0.0 0 reviews | |||
| PriceFrom ₹ 13,739 | Free Cancellation | Rating 4.5 86 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Karnataka to Bihar?
It is quick and easy to find Karnataka to Bihar flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bihar that suits you.
Can I find flights from Karnataka to Bihar with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Bihar from Karnataka with this policy.
How can momondo help me find flights from Karnataka to Bihar?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bihar from Karnataka.
I’m not ready to book a flight from Karnataka to Bihar right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Karnataka to Bihar now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bihar and let you know when they change.