BIL - BOI

$178 Find Cheap Flights from Billings to Boise - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Boise departing on 8/19. 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, 0 bags

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Everything you should know

Cheapest round-trip
$353
Alaska Airlines
Tue 9/15Tue 9/22
BIL - BOI • 1 stop
Cheapest one-way
$178
Typical prices: $189-$368
Delta
Wed 8/19
BIL - BOI • 1 stop
Top airlines
Cheapest • from $353 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Billings and Boise. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $355 (round-trip)
Shortest trip • 4h 33m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Boise (BIL-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Boise 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 Billings to Boise

Tue, Sep 15 - Tue, Sep 22
Alaska Airlines Logo
12:18 pm - 11:44 pm
BIL
-
BOI
11h 26m
1 stop
Alaska Airlines Logo
1:15 pm - 6:49 pm
BOI
-
BIL
5h 34m
1 stop
$353Alaska Airlines
Tue, Sep 15 - Tue, Sep 22
Delta Logo
5:30 am - 9:51 am
BIL
-
BOI
4h 21m
1 stop
Delta Logo
6:44 pm - 10:34 pm
BOI
-
BIL
3h 50m
1 stop
$355Delta
Tue, Oct 27 - Sat, Oct 31
Alaska Airlines Logo
6:01 am - 12:35 pm
BIL
-
BOI
6h 34m
1 stop
Alaska Airlines Logo
8:25 am - 6:52 pm
BOI
-
BIL
10h 27m
1 stop
$374Alaska Airlines
Tue, Aug 4 - Sat, Aug 8
United Airlines Logo
4:10 pm - 10:37 pm
BIL
-
BOI
6h 27m
1 stop
United Airlines Logo
5:46 pm - 10:10 pm
BOI
-
BIL
4h 24m
1 stop
$375United Airlines
Thu, Sep 17 - Thu, Sep 24
Alaska Airlines Logo
6:14 am - 12:35 pm
BIL
-
BOI
6h 21m
1 stop
Alaska Airlines Logo
4:20 pm - 11:29 pm
BOI
-
BIL
7h 09m
1 stop
$384Alaska Airlines
Thu, Sep 17 - Thu, Sep 24
Alaska Airlines Logo
7:29 pm - 9:56 am
BIL
-
BOI
14h 27m
1 stop
Alaska Airlines Logo
2:16 pm - 6:49 pm
BOI
-
BIL
4h 33m
1 stop
$395Alaska Airlines
Tue, Sep 15 - Tue, Sep 22
Alaska Airlines Logo
6:14 am - 12:35 pm
BIL
-
BOI
6h 21m
1 stop
Alaska Airlines Logo
1:31 pm - 11:29 pm
BOI
-
BIL
9h 58m
2 stops
$398Alaska Airlines
Tue, Oct 27 - Sat, Oct 31
Alaska Airlines Logo
7:32 pm - 11:58 pm
BIL
-
BOI
4h 26m
1 stop
Alaska Airlines Logo
9:09 am - 6:52 pm
BOI
-
BIL
9h 43m
2 stops
$399Alaska Airlines
Sun, Aug 2 - Wed, Aug 5
United Airlines Logo
5:07 am - 9:53 am
BIL
-
BOI
4h 46m
1 stop
United Airlines Logo
5:46 pm - 10:10 pm
BOI
-
BIL
4h 24m
1 stop
$404United Airlines
Thu, Sep 17 - Thu, Sep 24
Alaska Airlines Logo
7:29 pm - 9:56 am
BIL
-
BOI
14h 27m
1 stop
Alaska Airlines Logo
1:31 pm - 11:29 pm
BOI
-
BIL
9h 58m
2 stops
$429Alaska Airlines
Booking Insights

KAYAK's insights & trends for Billings to Boise flights

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

How much is a round-trip flight from Billings to Boise?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Billings to Boise departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billings to Boise, 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 Billings to Boise is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $686 and $563 respectively.

Good to know

Low seasonMarch
Cheapest flight$178
Best time to beat the crowds with an average 55% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Billings to Boise

When to book flights from Billings to Boise

Are your dates flexible? Find out the best times to travel from Billings to Boise 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 Billings to Boise

  • What is the cheapest flight from Billings to Boise?

    In the last 5 days, the lowest price for a flight from Billings to Boise was $178 for a one-way ticket and $353 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Billings to Boise?

    Billings airport is called Billings Logan Intl and the only airport in Boise is Boise Air Term. Gowen Fld.

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

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

  • Which airline alliances offer flights from Billings to Boise?

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

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

    The two airlines most popular with KAYAK users for flights from Billings to Boise are Alaska Airlines and Delta. With an average price for the route of $368 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $481 and an overall rating of 7.8.

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

    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 Billings to Boise.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Billings 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 Billings to Boise?

    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 Boise with an airline and back to Billings with another airline. Booking your flights between Billings and BOI 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 Billings to Boise?

    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 Boise from Billings up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Billings to Boise

 
See real verified KAYAK customer reviews for airlines flying from Billings to Boise. 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 Billings to Boise? 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.
7.9
Alaska AirlinesOverall score based on 12607 reviews
7.1Food
8.5Crew
7.0Entertainment
8.1Boarding
7.8Comfort
Airline reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

6.0 GoodAnonymous, May 2026
PDX - BOI
Read more Alaska Airlines reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

No outlets, plugs, way to charge the phone or service and no food on one leg o the trip, but other than that, great. Loved WIFI, the flight, the crew, the pilots, the schedule, etc. Great job. My new favorite airline!

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

Flight was scheduled to leave at 6a and delayed for 5 hours due to “mechanical” issues. Everyone else on the flight received an email voucher for $24 of food for the delay, except for our group. Also the carry on luggage bins were full and the crew requested that everyone to pass their carry ons back up to the front while everyone was still standing. They gave no other direction and kept rushing the process. After all bags were sent up, they then asked for seat #s to go with each bag… They should have probably had everyone get to their sits and then pass the bags up in a controlled process.

From Las Vegas to Boise all went well. However, our flight was delayed in Boise and I missed my connecting flight from Seattle to Pasco. Moreover, the last flight to Pasco was full and I was booked on the 11:30 flight Sunday and given a hotel accommodation. However, I was scheduled to deliver the Sunday morning service at my church and needed to arrive no later than 10:00. Therefore, I booked a Delta flight scheduled to arrive in Pasco at 23:09. My piece of luggage checked in Las Vegas arrived in Pasco earlier today. I waited at the airport for over an hour last night to speak with an Alaska agent to no avail. I went back after church this morning in search of my piece of luggage and it could not be located. After waiting for 40 minutes to speak to the agent authorized to take my claim, he announced that he was closing the counter to assist on the flight line but not before providing me with a telephone number that would help me with filing my claim. Before I was able to make the call (due to other factors) I received a call from Alaska agent informing me that my luggage had just arrived and I am now waiting for it to be delivered. I deliberately took the more complicated route home to ensure that I would be home in plenty of time to prepare for myself for the Sunday service and accommodate my relatives’ needs. I believe the airport is undermanned given the number of flights coming in and going out. It was fiasco last night with three flights waiting for luggage and another flight landing within minutes. Today’s problems stemmed from a lack of cross training and a serious amount of cargo/baggage going out and too few people scheduled to cover.

The seats were not very comfortable and there were no TV screens. Boarding was pretty fast because there were so few people on such a small plane and I appreciated that they still gave us our snack and drinks, however I really wish they would come up with a good gluten-free snack.

Flight crew and flight were good. But it departed two hours late.

Pretzels are always a disappointment. Cheezits, Sun Chips, trail mix, anything else would be nice.

They were friendly, efficient and got our bags to us so fast at the end of the flight.

In GEG I arrived at 0930 for a 1600 flight. Alaska had a rule that you could not check your bags until 4 hours before flight time. I was forced to sit in a chilly lobby for hours. I had access to a bathroom, but could not go into terminal for food and drink. Boarding and flight OK

Everything about this flight was good except for the very end when I reached my destination. Everyone from the tune to the wheelchair escorts were great with the case were great but I miss you with people at the check in this at the very end. I need help from the chicken desk because I forgot my pillow on the plane The female worker at the chicken desk said that they found my pillow and she was going to retrieve it for me. She left a 30 minutes without any update and her so she saw me walking back and forth waiting for her and they didn't even bother calling her or radioing her for any updates. They were busy because they were behind schedule and they were overwhelmed but thanks because at least glanced me and try to give me an update just a quick radio check or phone call. I don't care about the pillow but if you tell me to wait, I waited for at least half an hour before I said something and I just left because they wouldn't bother talking to me so I could, so everything's going in the review. I took pictures of the two men that were left working at the check-in counter. The totally ignored me despite the signals I've been giving them. I don't see any offers in the kayak review to add pictures or screenshots so I'm going to post another review I don't know their name but I'm pretty sure Delta will find other names when they see the review. Google with pictures. There was another guy at the chicken counter bring an orange workers vest who finally left after telling me that the girl that was retrieving my pillow is working the gates now. That would have been if they just told me that's what happened. But I had no update. Make me wait for nothing. Thank you Delta airlines!

We had a great experience with Delta. They helped us from the start at the kiosk all the way to our final destination, including help reassigning and upgrading our seats free of charge at the gates, escorts with the wheelchair for my brother and even getting our luggage at baggage claim for us. I also had special help because I forgot my pillow on the plane. The wheelchair escort contacted for associates at the check-in desk all the way back to the plane and retrieved my pillow for me.

Crew was real good, flight was smooth and came in early.

The CRJ-900 was clean but the overhead air vents were broken in our First Class row, making the cabin very hot until about 30 mins into the flight. The flight attendants were both extremely apologetic and accommodating though so that is why I rated the flight as very good. They checked on us many times and truly showed they cared. The snacks for an hour and a half flight could be better. Would be nice if there was a small plated meal over convenient store snacks. WiFi also was not working. And it would be nice if Delta had adjustable headrests on these planes.

New high end luggage ruined/zippers broken, items missing. All happened on return flight from msp to mso. Do better! Not store bought luggage but high end personalized ogio custom embroidered luggage. Total slap in the face ontop of an extra luggage fee that took me 3 hrs on chat to resolve.

It was as good as it could be. Flying is not a pleasant experience these days.

The plane was old and thus the seats were not good. No cushion left whatsoever, and it all was a bit worn out.

Having to up charge for a seat assignment is not good. Delta can do better

Nothing unusual. It was fine. I hate having to pay extra for my seat.

Didn’t make the flight. My connecting flight was an hour late and I missed the flight. You rerouted me thru Atlanta and I arrived in Rome over 10 hour after my original Rome arrival time. You also left my luggage in Atlanta and it took you three day to get my bag to meI spent 4 days in the same cloths, I had packed my prescriptions in the lost bag and went 3 days withoutMy heart meds.

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

I was exhausted from a long day. The flight was smooth. The first flight during my 3 week travel that took off on time.

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The amount of seating is ridiculously small. Three points to consider Point One: Your in flight magazine needs to be smaller. Do you realize I can't even hold it in a reading position because of the limited space in front of me? It's a hangover from the past and if you want anyone to read it, it must be smaller. Point two: It is very uncomfortable for a lady to be sitting next to a strange man and constantly rubbing upper arms even when both of our elbows are within the arm rests. And larger men (whom I pity in this confined predicament) also tend to spread their legs into my leg space which requires me to hold my legs into a smaller position. Point three: The seats seem to position one's body in an unusually upright manner and the head rests push the head farther forward. I gave a small effort to see if the headrest could be removed but didn't want to break it or cause a scene with my efforts. I finally put my jacket behind my back to place my body more forward to match the head rest. The service was fine and I noticed ALL staff worked at smiling and greeting passengers. That was nice. No one likes to fly anymore as it is an endurance rather than a pleasure.

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

Information on your arrival and departure airports