Cheap Flights from Boise to Billings

Compare Boise to Billings flight deals

Find the cheapest month or even day of the year to fly to Billings

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Flight deals from Boise to Billings

Looking for a cheap last-minute deal or the best return flight from Boise Airport to Billings Airport? If you want to travel next month, return fares start from $642. Find the lowest prices on one-way and return tickets right here.

Billings.$642 per passenger.Departing Thu, 20 Aug, returning Wed, 26 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Thu, 20 Aug, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Wed, 26 Aug, arriving in Boise.Price includes taxes and charges.From $642, select.

Billings.$716 per passenger.Departing Sun, 22 Nov, returning Sun, 29 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Sun, 22 Nov, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Sun, 29 Nov, arriving in Boise.Price includes taxes and charges.From $716, select.

Billings.$1,392 per passenger.Departing Sun, 26 Jul, returning Sun, 2 Aug.Return flight with United.Outbound indirect flight with United, departs from Boise on Sun, 26 Jul, arriving in Billings.Inbound indirect flight with United, departs from Billings on Sun, 2 Aug, arriving in Boise.Price includes taxes and charges.From $1,392, select.

Find the cheapest month to fly from Boise to Billings

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boise to Billings flights are currently cheapest in August.

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Boise to Billings: Alternative routes

Compare routes from Boise to Billings below. You may find an airport to fly into that's cheaper, faster, or easier than Billings.

Billings

5km from central Billings

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from $642

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Boise to Billings: Flight information

The things to know before you go.

Cheapest flight found	$642
Cheapest month to fly	August

Finding cheap flights from Boise to Billings: Frequently asked questions

How much are return flights from Boise to Billings?

The best price we found for a return flight from Boise to Billings is $642. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Boise to Billings?

Currently, there are no airlines that fly direct from Boise to Billings. But we found flights with one or more stops from $642.

How many flights are there a week from Boise to Billings?

As of July 2026, there are no flights flying from Boise to Billings.

When is the cheapest time to fly from Boise to Billings?

The cheapest month to fly from Boise to Billings is usually August.

Which upcoming date is cheapest to fly from Boise Airport to Billings Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Billings Airport on Thursday, 20 August 2026.

Can I get a direct flight from Boise Airport to Billings Airport?

No airlines currently offer direct flights between Boise Airport and Billings Airport. Most routes have one or more stops.

How can I find the best flight deal to Billings?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Billings but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Billings?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Billings is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Boise Airport to Billings with?

Currently, Delta offers the cheapest flight tickets to Billings.

Travelling from Boise Airport (BOI) to Billings Airport (BIL): what you need to know

Arrive at the airport on time so you don't miss your BOI to BIL flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.
Flying during a peak month such as October? Major public holidays and other popular periods can lead to longer queues and delays at airport checkpoints. Play it safe and get there up to four hours before an international flight and two hours before domestic departures.
We make it a piece of cake to book a flight with a stopover. To see your options for tickets from Boise Airport to Billings Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to explore your chosen city. Popular stopovers between BOI and BIL include:
- Denver International Airport
- Harry Reid International Airport
- Salt Lake City Airport

How to find the cheapest flights from Boise Airport (BOI) to Billings Airport (BIL)

The cheapest price we've found for a one-way Boise Airport to Billings Airport flight is $338. A return fare right now is $642. Depending on the availability when you book, these fares can change.
Don't wait until the last minute. You're more likely to find cheap tickets from BOI to BIL if you book in advance. Airlines often have some terrific early bird deals.
If you're flexible with your travel dates, try using the 'Whole month' tool. It'll give you the cheapest price in each month when searching for a flight from Boise Airport to Billings Airport.
Save time searching for cheap flights from BOI to BIL by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare pops up.
Pick your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Boise Airport to Billings Airport.

Handy information about Boise Airport (BOI)

BOI is located at 3201 Airport Way.
Boise Airport maintains a strong on-time performance, so you're unlikely to face delays. Departures from BOI land at their destination as scheduled 84% of the time.
Central Boise to Boise Airport is around 6 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're driving, ride-sharing or catching a taxi.
You can expect a trip time of around 30 minutes when using public transport.
Searching for a convenient hotel near BOI? If you're catching an early flight from Boise Airport to Billings Airport, these stays will have you moments from your departure gate:

Arriving at Billings Airport (BIL)

Book a hotel near BIL if you have a late Boise Airport to Billings Airport flight. Choose one of these accommodation options and avoid the hassle of a long transfer:
Go wherever you want, whenever you want with a Billings Airport rental car. Book your wheels from Alamo, Budget or Rent a Wreck and experience more of Billings and beyond.
To secure the best deal, book your ride from Billings Airport several weeks in advance. Prices usually increase closer to your date of travel.

When to fly to Billings Airport (BIL)

The quietest month for a flight from Boise Airport to Billings Airport is March, while September is the busiest. Choose the best time to go to Billings based on whether you prefer a more relaxed vibe or a faster pace.
When reserving your flight from Boise Airport to Billings Airport, consider the type of weather you enjoy. July is the warmest month in Billings, with temperatures ranging from 13ºC to 34ºC.
February has average temperatures of between -18ºC and 8ºC. Look for cheap tickets from BOI to BIL around that time if you'd rather travel in cooler conditions.

Explore more of the United States

Rapid City is just one of the many places in the United States waiting to be explored once you've taken in the sights of Billings. Around 451 kilometres away to the south-east, popular attractions include Dinosaur Park, President Abraham Lincoln Statue and Lakota Dream Museum and Monument.
Missoula is another essential stop in the United States and is around 434 kilometres west of Billings. No trip is complete without visiting Mt Jumbo, Lolo Natioal Forest and Missoula Art Museum.