$178 Find Cheap Flights from Billings to Idaho - 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 Idaho departing on 7/14. 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 Idaho

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

Cheap Flights from Billings to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise1 stop$355
Spokane
Spokane1 stop$375
Boise
Boise1 stop$355
Spokane
Spokane1 stop$375

Book Cheap Billings to Idaho Plane Tickets

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

Tue, Sep 15 - Tue, Sep 22
Alaska Airlines Logo
6:14 am - 12:35 pm
BIL
-
BOI
6h 21m
1 stop
Alaska Airlines Logo
6:00 am - 3:02 pm
BOI
-
BIL
9h 02m
1 stop
$355Alaska Airlines
Tue, Oct 20 - Sat, Oct 24
Alaska Airlines Logo
7:32 pm - 11:58 pm
BIL
-
BOI
4h 26m
1 stop
Alaska Airlines Logo
2:08 pm - 6:52 pm
BOI
-
BIL
4h 44m
1 stop
$374Alaska Airlines
Wed, Jul 22 - Thu, Jul 30
Delta Logo
5:20 am - 9:07 am
BIL
-
GEG
4h 47m
1 stop
Delta Logo
5:10 pm - 10:50 pm
GEG
-
BIL
4h 40m
1 stop
$375Delta
Tue, Aug 11 - Thu, Aug 20
Alaska Airlines Logo
7:22 pm - 12:04 am
BIL
-
BOI
4h 42m
1 stop
Alaska Airlines Logo
4:17 pm - 11:29 pm
BOI
-
BIL
7h 12m
1 stop
$375Alaska Airlines
Fri, Oct 23 - Sat, Oct 24
Alaska Airlines Logo
6:01 am - 9:46 am
BIL
-
GEG
4h 45m
1 stop
Alaska Airlines Logo
1:49 pm - 6:52 pm
GEG
-
BIL
4h 03m
1 stop
$385Alaska 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
$389Alaska Airlines
Thu, Oct 29 - Sun, Nov 1
Alaska Airlines Logo
3:44 pm - 6:49 pm
BIL
-
GEG
4h 05m
1 stop
Alaska Airlines Logo
4:37 pm - 10:43 pm
GEG
-
BIL
5h 06m
1 stop
$395Alaska 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
$399Alaska Airlines
Mon, Jul 20 - Thu, Jul 23
Delta Logo
5:20 am - 9:07 am
BIL
-
GEG
4h 47m
1 stop
Delta Logo
5:10 pm - 10:50 pm
GEG
-
BIL
4h 40m
1 stop
$427Delta
Booking Insights

KAYAK's insights & trends for Billings to Idaho flights

Get data-powered insights and trends into flights from Billings to Idaho 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 Idaho?

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 Idaho departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billings to Idaho, 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 Idaho is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are May and July, when the average cost of round-trip tickets is $481 and $400 respectively.

Good to know

Low seasonMarch
Cheapest flight$178
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Billings to Spokane

FAQs - booking Idaho flights

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

    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 Idaho.

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

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

    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 from Billings to Idaho with an airline and back with another airline.

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

    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 from Billings to Idaho 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 Billings to Idaho

 
See real verified KAYAK customer reviews for airlines flying from Billings to Idaho. 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 Idaho? 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 12536 reviews
8.5Crew
8.1Boarding
7.8Comfort
7.0Entertainment
7.0Food
Airline reviews

Missoula is a great airport. Desk and gate crews were very helpful and friendly

6.0 GoodPatricia, Jun 2026
MSO - SEA
Read more Alaska Airlines reviews

Missoula is a great airport. Desk and gate crews were very helpful and friendly

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

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!

The crew was great and everything went smoothly coming and going.

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!

They changed the flight time from 4:00 to 1:50. We missed the flight because we did not know. We were not entitled to any sort of refund.

Easy check-in. Good customer service. Had to check carry-on due to lack of overhead space. Wish the airplane was configured with more overhead area so this doesn't usually happen.

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

No communication with delayed and canceled flights. Completely in the dark for the whole experience.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

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

Information on your arrival and departure airports