$236+ Cheap flights from Billings to Idaho Falls (BIL - IDA)
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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — IDA
Nov 27 — Dec 41
Round-trip
1 adult, Economy
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Find cheap flights from Billings to Idaho Falls with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Billings to Idaho Falls
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Cheapest flights from Billings to Idaho FallsExplore the most affordable flight options available from Billings to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2026.
Explore the most affordable flight options available from Billings to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2026.
This Delta deal was found by Cheapflights users on 10/23. 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.
Sat 11/76:29 pm -
1 stop3h 41m
Wed 11/116:57 pm -
1 stop3h 23m
Deal found 10/23![Delta logo]()
$645
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:20 am -
1 stop7h 49m
Sat 11/286:02 am -
1 stop17h 56m
Deal found 10/24![Alaska Airlines logo]()
$693
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/107:00 am -
1 stop6h 28m
Sat 11/144:30 pm -
1 stop6h 00m
Deal found 10/26![United Airlines logo]()
$807
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:55 am -
1 stop10h 59m
Fri 11/131:53 pm -
1 stop21h 22m
Deal found 10/24![Alaska Airlines logo]()
$843
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:18 am -
1 stop8h 00m
Wed 11/111:53 pm -
2 stops24h 59m
Deal found 10/23![Alaska Airlines logo]()
$878
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:18 am -
2 stops29h 58m
Mon 11/161:53 pm -
2 stops24h 59m
Deal found 10/28![Alaska Airlines logo]()
$934
Best flights from Billings to Idaho FallsDiscover carefully curated flight deals from Billings to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2026.
Discover carefully curated flight deals from Billings to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2026.
This Delta deal was found by Cheapflights users on 10/23. 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.
Sat 11/76:29 pm -
1 stop3h 41m
Wed 11/116:57 pm -
1 stop3h 23m
Deal found 10/23![Delta logo]()
$645
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:20 am -
1 stop7h 49m
Sat 11/286:02 am -
1 stop17h 56m
Deal found 10/24![Alaska Airlines logo]()
$693
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/107:00 am -
1 stop6h 28m
Sat 11/144:30 pm -
1 stop6h 00m
Deal found 10/26![United Airlines logo]()
$807
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/124:00 pm -
1 stop5h 09m
Mon 11/162:35 pm -
1 stop6h 39m
Deal found 10/28![United Airlines logo]()
$807
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:18 am -
1 stop8h 00m
Wed 11/111:53 pm -
2 stops24h 59m
Deal found 10/23![Alaska Airlines logo]()
$878
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:18 am -
1 stop15h 36m
Fri 11/131:53 pm -
2 stops24h 59m
Deal found 10/24![Alaska Airlines logo]()
$878
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:55 am -
1 stop10h 59m
Sat 11/141:53 pm -
2 stops24h 59m
Deal found 10/26![Alaska Airlines logo]()
$878
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:18 am -
2 stops29h 58m
Mon 11/161:53 pm -
2 stops24h 59m
Deal found 10/28![Alaska Airlines logo]()
$934
Last-minute flights from Billings to Idaho FallsDiscover last-minute flight deals from Billings to Idaho Falls. Data last updated October 28, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to Idaho Falls. Data last updated October 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/23. 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.
Sat 11/76:29 pm -
1 stop3h 41m
Wed 11/116:57 pm -
1 stop3h 23m
Deal found 10/23![Delta logo]()
$645
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:18 am -
1 stop8h 00m
Wed 11/111:53 pm -
2 stops24h 59m
Deal found 10/23![Alaska Airlines logo]()
$878
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:55 am -
1 stop10h 59m
Fri 11/131:53 pm -
1 stop21h 22m
Deal found 10/24![Alaska Airlines logo]()
$843
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/107:00 am -
1 stop6h 28m
Sat 11/144:30 pm -
1 stop6h 00m
Deal found 10/26![United Airlines logo]()
$807
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:18 am -
2 stops29h 58m
Mon 11/161:53 pm -
2 stops24h 59m
Deal found 10/28![Alaska Airlines logo]()
$934
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:20 am -
1 stop7h 49m
Sat 11/286:02 am -
1 stop17h 56m
Deal found 10/24![Alaska Airlines logo]()
$693
One-way flights from Billings to Idaho FallsSearch for one-way flight options from Billings to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 28, 2026.
Search for one-way flight options from Billings to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Thu 12/244:54 pm -
1 stop17h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Allegiant Air logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Fri 12/251:05 pm -
1 stop26h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Allegiant Air logo]()
$240
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/253:38 pm -
2 stops8h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Alaska Airlines logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/243:38 pm -
2 stops23h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Alaska Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Wed 12/236:28 pm -
1 stop20h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Allegiant Air logo]()
$319
This Delta deal was found by Cheapflights users on 10/27. 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.
Tue 12/2912:59 pm -
1 stop10h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/284:58 pm -
1 stop15h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Allegiant Air logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/266:00 am -
1 stop17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Alaska Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 10/27. 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.
Sun 12/275:20 am -
1 stop7h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/233:38 pm -
2 stops32h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Alaska Airlines logo]()
$488
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/293:38 pm -
2 stops32h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Alaska Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Fri 12/251:05 pm -
3 stops32h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$547
Find flight deals from Billings to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $645 (Delta) |
One-way from | $236 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Billings to Idaho Falls 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 7,457,451 searches. Data last updated October 28, 2026.
Use the filters below to find and compare flights from Billings to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Tue 12/29
12:59 pm-11:03 pm
1 stop10h 04m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$391
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Mon 12/28
4:58 pm-8:04 am
1 stop15h 06m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$402
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Sat 12/26
6:00 am-11:45 pm
1 stop17h 45m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$427
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Sun 12/27
5:20 am-12:28 pm
1 stop7h 08m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$441
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Wed 12/23
3:38 pm-11:45 pm
2 stops32h 07m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$488
Quickest round-trip
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Sat 11/7
6:29 pm-10:10 pm
1 stop3h 41m
Idaho Falls Fanning Field
Wed 11/11
6:57 pm-10:20 pm
1 stop3h 23m
$645
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Sun 12/27
6:00 am-1:15 pm
2 stops7h 15m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$682
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Thu 11/26
7:20 am-3:09 pm
1 stop7h 49m
Idaho Falls Fanning Field
Sat 11/28
6:02 am-11:58 pm
1 stop17h 56m
$693
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Tue 11/10
7:00 am-1:28 pm
1 stop6h 28m
Idaho Falls Fanning Field
Sat 11/14
4:30 pm-10:30 pm
1 stop6h 00m
$807
BillingsIdaho Falls
BIL Billings Logan Intl - IDA Idaho Falls Fanning Field
BILIDA
Billings Logan Intl
Thu 11/12
4:00 pm-9:09 pm
1 stop5h 09m
Idaho Falls Fanning Field
Mon 11/16
2:35 pm-9:14 pm
1 stop6h 39m
$807
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Billings to Idaho Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to Idaho Falls in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Billings-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Billings-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Billings to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Billings with our price prediction graph.
BIL-IDA
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.
Related info for your journey
Find useful and relevant information for your journey from Billings to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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