BOI - BIL

$165 Find Cheap Flights from Boise to Billings

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Billings departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Billings

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Billings, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Billings, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Boise to Billings (BOI-BIL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Billings that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Billings

Sat, Oct 25 - Mon, Oct 27
Hawaiian Airlines Logo
11:19 am - 6:38 pmBOI-BIL
7h 19m1 stop
Hawaiian Airlines Logo
7:22 pm - 11:48 pmBIL-BOI
4h 26m1 stop
$289Hawaiian Airlines
Find Deal
Tue, Jul 15 - Tue, Jul 22
Delta Logo
6:00 pm - 12:07 amBOI-BIL
6h 07m1 stop
Delta Logo
5:20 am - 9:26 amBIL-BOI
4h 06m1 stop
$307Delta
Find Deal
Sat, Oct 25 - Mon, Oct 27
Alaska Airlines Logo
1:42 pm - 6:38 pmBOI-BIL
4h 56m1 stop
Alaska Airlines Logo
3:40 pm - 10:25 pmBIL-BOI
6h 45m2 stops
$335Alaska Airlines
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Thu, Jul 17 - Thu, Jul 24
Delta Logo
6:00 pm - 12:07 amBOI-BIL
6h 07m1 stop
Delta Logo
5:20 am - 9:26 amBIL-BOI
4h 06m1 stop
$337Delta
Find Deal
Fri, Jul 18 - Mon, Jul 21
Delta Logo
6:00 pm - 12:07 amBOI-BIL
6h 07m1 stop
Delta Logo
5:20 am - 9:26 amBIL-BOI
4h 06m1 stop
$347Delta
Find Deal
Fri, Jul 11 - Sun, Jul 13
Delta Logo
6:00 pm - 12:07 amBOI-BIL
6h 07m1 stop
Delta Logo
5:20 am - 9:26 amBIL-BOI
4h 06m1 stop
$349Delta
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Sat, Oct 25 - Mon, Oct 27
Alaska Airlines Logo
3:37 pm - 12:08 amBOI-BIL
8h 31m2 stops
Alaska Airlines Logo
2:00 pm - 11:59 pmBIL-BOI
9h 59m2 stops
$373Alaska Airlines
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Tue, Jul 15 - Tue, Jul 22
Alaska Airlines Logo
5:43 pm - 12:08 amBOI-BIL
6h 25m1 stop
Alaska Airlines Logo
7:17 pm - 8:07 amBIL-BOI
12h 50m2 stops
$390Alaska Airlines
Find Deal
Fri, Jul 11 - Sun, Jul 13
United Airlines Logo
7:15 pm - 9:38 amBOI-BIL
14h 23m2 stops
United Airlines Logo
5:00 am - 9:46 amBIL-BOI
4h 46m1 stop
$542United Airlines
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Fri, Jul 18 - Mon, Jul 21
United Airlines Logo
7:51 am - 5:14 pmBOI-BIL
33h 23m2 stops
United Airlines Logo
5:00 am - 9:46 amBIL-BOI
4h 46m1 stop
$564United Airlines
Find Deal
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KAYAK's insights & trends for Boise to Billings flights

Get data-powered insights and trends into flights from Boise to Billings to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boise to Billings?

The average price of all round-trip flights from Boise to Billings clicked on KAYAK for each day over the last 12 months.

For Boise to Billings, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from Billings back to Boise, the best deals are generally found on Saturday, with Monday being the most expensive.

What is the cheapest month to fly from Boise to Billings?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Billings, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to Billings is November, where tickets cost $288 (return) on average. On the other hand, the most expensive months are February and September, where the average cost of round-trip tickets is $554 and $528 respectively.

Good to know

Low seasonFebruary
High seasonApril
Cheapest flight$165
Best time to beat the crowds but there is an average 38% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Boise to Billings

When to book flights from Boise to Billings

Are your dates flexible? Find out the best times to travel from Boise to Billings based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to Billings

  • What is the cheapest flight from Boise to Billings?

    In the last 3 days, the lowest price for a flight from Boise to Billings was $165 for a one-way ticket and $289 for a round-trip.

  • Do I need a passport to fly between Boise and Billings?

    No, a passport isn't needed to fly from Boise to Billings. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Boise to Billings?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Billings?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Boise and Billings, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Boise to Billings, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boise to Billings are Delta and Alaska Airlines. With an average price for the route of $363 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $399 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Boise to Billings?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Billings.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Billings?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Billings?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Billings with an airline and back to Boise with another airline. Booking your flights between Boise and BIL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Billings?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Billings from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Boise to Billings

 
See real verified KAYAK customer reviews for airlines flying from Boise to Billings. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Billings? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.1Boarding
7.1Entertainment
7.1Food
8.5Crew
7.8Comfort
Airline reviews

Very bad, terrible food and late by 2 hours. Then no to open aircraft doors

2.0 MediocreStephen, Jun 2025SAN - HNL
Read more Alaska Airlines reviews

Very bad, terrible food and late by 2 hours. Then no to open aircraft doors

Food was just ok..had snack box :( Crew was very nice

The Alaska app and website were not fully operational. I had to spend about 15 minutes at the counter doing things that should have been completed online. The agent was very nice and helpful, however.

Could have service kiosks, had to find a gate with an attendant

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Passengers were not informed timely of delays. The staff appeared like they didn't really care about the passengers.

Food and entertainment aren’t a thing on these regional flights. But it was a smooth flight. Could see gorgeous countryside through the large windows. The earplugs are a nice touch for the prop engines but the hum of the engines did not bother me. Grateful the option exists to easily get from A to B.

Both flights were delayed going to our destination and leaving, and communication about the delays was not great by the airlines, now the crews were phenomenal and great to be around!!

Both flights were delayed due to an incident at SEA. The problem really rests with inadequate customer & plane facilities for Skywest at SEA. You feel like you are in a cattle enclosure. And planes were sitting on taxiways waiting for parking so every plane was late. SEA appears to be over capacity. It is not a fun passenger experience waiting. But crews and flights were all fine. Alaska needs to step up.

Really good except my daughter's tv broke during the flight so she could watch tv

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

Everything you need to know for your flight from Boise to Billings

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