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Billings

$245+ Cheap flights from Idaho to Billings (BIL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Idaho to Billings

Cheapest flights from Idaho to Billings
Explore the most affordable flight options available from Idaho to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:20 pmBOI - BIL
1 stop18h 38mAllegiant Air
Sun 1/410:05 pmBIL - BOI
1 stop16h 59mAllegiant Air
Deal found 12/17$445
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:20 pmBOI - BIL
1 stop18h 38mMultiple Airlines
Sun 1/410:05 pmBIL - BOI
2 stops22h 56mMultiple Airlines
Deal found 12/17$462
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:50 amBOI - BIL
1 stop5h 22mDelta
Sun 1/46:20 pmBIL - BOI
1 stop5h 59mDelta
Deal found 12/15$504
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:53 pmGEG - BIL
1 stop4h 48mDelta
Sun 1/45:14 amBIL - GEG
1 stop4h 54mDelta
Deal found 12/16$608
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:53 pmGEG - BIL
1 stop4h 48mDelta
Mon 12/295:14 amBIL - GEG
1 stop4h 54mDelta
Deal found 12/17$687
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:40 pmBOI - BIL
1 stop6h 44mUnited Airlines
Thu 1/16:35 amBIL - BOI
1 stop11h 28mUnited Airlines
Deal found 12/16$698
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:05 amGEG - BIL
1 stop7h 19mUnited Airlines
Sun 1/45:50 pmBIL - GEG
2 stops28h 41mUnited Airlines
Deal found 12/16$737
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:04 amGEG - BIL
1 stop6h 36mDelta
Fri 12/265:14 amBIL - GEG
1 stop4h 54mDelta
Deal found 12/15$763
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:37 amGEG - BIL
1 stop20h 58mAllegiant Air
Fri 12/2610:14 amBIL - GEG
1 stop25h 15mAllegiant Air
Deal found 12/15$783
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1712:55 pmBOI - BIL
1 stop4h 47mDelta
Thu 12/185:14 amBIL - BOI
1 stop5h 01mDelta
Deal found 12/16$787
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:17 pmGEG - BIL
1 stop4h 06mDelta
Thu 12/185:14 amBIL - GEG
1 stop4h 56mDelta
Deal found 12/16$787
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amBOI - BIL
2 stops14h 49mUnited Airlines
Sun 1/42:40 pmBIL - BOI
1 stop19h 21mUnited Airlines
Deal found 12/15$805

Find flight deals from Idaho to Billings

Keep the following information in mind while searching for Idaho to Billings flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$245
(Alaska Airlines)

Popular in

September

Cheapest in

August

Average price

$508
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Billings Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Billings Logan Intl flights.
Search Deals
From Idaho to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Billings that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Idaho to Billings that are best for you.

Fly from

Idaho

Fly to

Billings

Route

Depart

Return

Price

SpokaneBillings

GEG - BIL

GEGBIL

Spokane

Wed 1/14

9:05 am-11:36 pm

1 stop13h 31m

Billings Logan Intl

Wed 1/21

3:35 pm-7:03 pm

1 stop4h 28m

$245

SpokaneBillings

GEG - BIL

GEGBIL

Spokane

Wed 2/25

5:40 am-11:38 pm

1 stop16h 58m

Billings Logan Intl

Fri 2/27

2:04 pm-12:29 pm

1 stop23h 25m

$254

SpokaneBillings

GEG - BIL

GEGBIL

Spokane

Thu 1/29

5:45 am-2:55 pm

1 stop8h 10m

Billings Logan Intl

Sat 1/31

2:02 pm-12:23 am

1 stop11h 21m

$254

SpokaneBillings

GEG - BIL

GEGBIL

Spokane

Tue 1/13

9:05 am-2:55 pm

1 stop4h 50m

Billings Logan Intl

Tue 1/20

3:35 pm-9:25 pm

1 stop6h 50m

$254

SpokaneBillings

GEG - BIL

GEGBIL

Spokane

Tue 1/13

4:55 pm-10:31 pm

1 stop4h 36m

Billings Logan Intl

Tue 1/20

11:47 am-8:58 pm

2 stops10h 11m

$280

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Wed 4/1

6:00 pm-10:43 pm

1 stop4h 43m

Billings Logan Intl

Sun 4/5

1:55 pm-6:15 pm

1 stop4h 20m

$336

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Thu 1/1

12:38 pm-7:56 am

2 stops19h 18m

Billings Logan Intl

Sun 1/4

10:05 pm-3:04 pm

1 stop16h 59m

$437

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Thu 1/1

5:50 am-11:12 am

1 stop5h 22m

Billings Logan Intl

Sun 1/4

6:20 pm-12:19 am

1 stop5h 59m

$471

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Wed 12/31

5:50 am-11:12 am

1 stop5h 22m

Billings Logan Intl

Sun 1/4

6:20 pm-12:19 am

1 stop5h 59m

$504

BoiseBillings

BOI - BIL

BOIBIL

Boise Air Term. Gowen Fld

Wed 12/24

6:40 am-3:58 pm

1 stop9h 18m

$333

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 12 results
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Best time to book a flight from Idaho to Billings

Have a flexible travel schedule? Discover the best time to fly to Billings from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Idaho to Billings?

Currently, May is the cheapest month in which you can book a flight from Idaho to Billings (average of $215). Flying from Idaho to Billings in February is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to BIL?

Find hourly flight availability from Idaho to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s optimal to fly from Idaho to Billings in the evening. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Idaho to Billings?

Related info for your journey

Find useful and relevant information for your journey from Idaho to Billings. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Billings from Idaho?

    Billings Logan Intl (BIL) is the airport you will fly into if you book a flight from Idaho to Billings. It is only a 2.7 mi journey from Billings Logan Intl (BIL) to Billings’s city center.

  • How long is the flight from Idaho to Billings?

    For as low as $245, Alaska Airlines can have you in Billings from Idaho in 13h 31m. There are 443 mi between Idaho and Billings.

  • What are the cheapest airlines to fly from Idaho to Billings one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $178. United Airlines flights start at $179 while deals on Delta start at $265 one-way.

  • What are the most popular routes from Idaho to Billings?

    The most popular route from Idaho to Billings is Spokane - Billings Logan Intl. You may also consider Boise Air Term. Gowen Fld - Billings Logan Intl or Pocatello - Billings Logan Intl.

  • Can I find deals for flights from Idaho to Billings that include hotel bookings?

    Yes. In addition to deals on Idaho to Billings flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Billings?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Billings.

  • Can I find deals for business class flights from Idaho to Billings?

    Yes. Cheapflights offers flight deals from Idaho to Billings by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Billings?

    Currently, May is the cheapest month in which you can book a flight from Idaho to Billings (average of $215). Flying from Idaho to Billings in February is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from Idaho to Billings

Discover the top 3 airlines that operate flights from Idaho to Billings. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$290Average$558FlexibilityNo cancel feeOn-time69%
DeltaCheapest$307Average$363FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$326Average$399FlexibilityNo cancel feeOn-time75%

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