BOI - BIL

$173 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 4/19. 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

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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Everything you should know

Cheapest round-trip
$237
Typical prices: $336-$449
Alaska Airlines
Wed 4/15Wed 4/22
BOI - BIL • 1 stop
Cheapest one-way
$173
Delta
Sun 4/19
BOI - BIL • 1 stop
Top airlines
Cheapest • from $237 (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 Boise and Billings. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $408 (round-trip)
Shortest trip • 4h 20m (one-way)
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Billings!
Flight Deals
Booking Insights
Flight 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

Wed, Apr 15 - Wed, Apr 22
Alaska Airlines Logo
6:00 am - 11:54 am
BOI
-
BIL
5h 54m
1 stop
Alaska Airlines Logo
7:00 am - 12:35 pm
BIL
-
BOI
5h 35m
1 stop
$237Alaska Airlines
Wed, Apr 22 - Tue, Apr 28
United Airlines Logo
5:00 am - 9:40 am
BOI
-
BIL
4h 40m
1 stop
United Airlines Logo
2:35 pm - 9:22 pm
BIL
-
BOI
6h 47m
1 stop
$277United Airlines
Wed, Apr 29 - Sat, May 2
Alaska Airlines Logo
5:50 am - 1:26 pm
BOI
-
BIL
7h 36m
1 stop
Alaska Airlines Logo
12:47 pm - 11:59 pm
BIL
-
BOI
11h 12m
1 stop
$303Alaska Airlines
Wed, Apr 29 - Sat, May 2
Alaska Airlines Logo
5:50 am - 1:26 pm
BOI
-
BIL
7h 36m
1 stop
Alaska Airlines Logo
12:47 pm - 11:59 pm
BIL
-
BOI
11h 12m
1 stop
$313Alaska Airlines
Sun, Apr 12 - Tue, Apr 14
Delta Logo
6:00 am - 10:53 am
BOI
-
BIL
4h 53m
1 stop
Delta Logo
5:20 am - 9:53 am
BIL
-
BOI
4h 33m
1 stop
$318Delta
Fri, Apr 3 - Sat, Apr 18
Delta Logo
6:15 pm - 10:29 pm
BOI
-
BIL
4h 14m
1 stop
Delta Logo
6:18 pm - 9:56 pm
BIL
-
BOI
3h 38m
1 stop
$328Delta
Thu, Apr 2 - Sat, Apr 18
Alaska Airlines Logo
5:50 am - 1:25 pm
BOI
-
BIL
7h 35m
1 stop
Alaska Airlines Logo
2:05 pm - 12:22 pm
BIL
-
BOI
22h 17m
1 stop
$333Alaska Airlines
Sun, Apr 12 - Tue, Apr 14
Delta Logo
12:45 pm - 5:41 pm
BOI
-
BIL
4h 56m
1 stop
Delta Logo
6:18 pm - 9:56 pm
BIL
-
BOI
3h 38m
1 stop
$336Delta
Wed, Apr 15 - Wed, Apr 22
Alaska Airlines Logo
6:04 pm - 11:58 pm
BOI
-
BIL
5h 54m
1 stop
Alaska Airlines Logo
7:00 am - 4:15 pm
BIL
-
BOI
9h 15m
2 stops
$342Alaska Airlines
Wed, Apr 29 - Sat, May 2
Alaska Airlines Logo
6:00 am - 1:26 pm
BOI
-
BIL
7h 26m
2 stops
Alaska Airlines Logo
12:47 pm - 11:59 pm
BIL
-
BOI
11h 12m
1 stop
$343Alaska Airlines
Booking Insights

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.

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

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

Good to know

Low seasonAugust
Cheapest flight$173
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 16% 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 $173 for a one-way ticket and $237 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?

    oneworld, and SkyTeam are the airline alliances operating flights between Boise and Billings, with oneworld 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 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $395 and an overall rating of 7.9.

  • 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.
7.9
Alaska AirlinesOverall score based on 12058 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.0Food
7.0Entertainment
Airline reviews

Snacks for our toddler could have been better, front the standpoint of variety but that’s not any different from other airlines.

8.0 ExcellentAllison, Mar 2026
BOI - SEA
Read more Alaska Airlines reviews

Snacks for our toddler could have been better, front the standpoint of variety but that’s not any different from other airlines.

The crew inside the airport for Alaska was rude, lazy and incompetent

I fell asleep and missed my flight and they rescheduled me no problem. Staff was professional and the plane was clean. I was very happy with my experience.

I enjoyed the Starlink access but didn't have much time to use it. It also kept dropping me so I gave up. The food was very good though when I asked for a different "dessert" they didn't have anything. Chocolate Brownie Cookies are not suitable for everyone...maybe children. The flight staff were amazing - at least in First Class! My first time ever! The trip from Boise to San Diego was FAR better than going to Boise.

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.

It was ok. First time flying with them to Boise Won’t do again

Our late returning flight was annoying. The plane was small, but it made boarding and disembarking quicker. I do wish they offered a gluten free snack.

I was standing in line to use the restroom. A First Class passenger wanted to use the restroom after me, but Jaques made me wait on Flight 3418 from BOI to SJC on December 12, 2025. I felt this was inappropriate and rude.

Larger seats with a bit more room would be good! Thanks for all your hard work. I think we are all feeling a bit down these days economically and your positive attitudes, both from SJC to Seattle and from Seattle to Bozeman makes more of a difference than you can see! Thank you and Merry Christmas! I hope all your financial needs are met and that very good things come your way.

I purchased a 1st class ticket and unfortunately the main flight attendant was not the best and seemed more interested in her phone than the passengers at times. Then the plane didn’t get restocked and the only snacks for this flight were pretzels. However I would like to say that the rest of the flight crew and ground crew at the airport we’re great, especially the people that wheeled me around the airport some and then the one getting me to the plane and the automated wheelchair that wheeled me through the airport.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

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

Information on your arrival and departure airports