$203+ Cheap flights from Boston to Billings (BOS - 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BIL
Oct 24 — Oct 311
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boston to Billings 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Boston to Billings
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to BillingsExplore the most affordable flight options available from Boston to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Boston to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:20 am -
1 stop8h 31m
Wed 11/41:23 pm -
1 stop8h 35m
Deal found 9/21![American Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:41 pm -
1 stop9h 59m
Wed 11/187:00 am -
1 stop8h 08m
Deal found 9/21![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 9/20. 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 11/711:15 am -
1 stop8h 33m
Thu 11/1212:58 pm -
1 stop8h 59m
Deal found 9/20![Delta logo]()
$412
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/116:00 am -
2 stops9h 29m
Wed 11/185:00 am -
2 stops8h 36m
Deal found 9/21![United Airlines logo]()
$415
This Expedia deal was found by Cheapflights users on 9/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:33 pm -
1 stop24h 19m
Thu 11/125:12 pm -
1 stop10h 28m
Deal found 9/20![Alaska Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 9/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:15 pm -
2 stops10h 57m
Fri 10/301:21 pm -
1 stop8h 34m
Deal found 9/22![American Airlines logo]()
$441
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:34 pm -
1 stop9h 36m
Tue 9/291:13 pm -
1 stop8h 21m
Deal found 9/20![American Airlines logo]()
$472
Best flights from Boston to BillingsDiscover carefully curated flight deals from Boston to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Boston to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:23 am -
2 stops11h 49m
Wed 11/47:00 am -
2 stops12h 46m
Deal found 9/21![American Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 9/22. 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 1/146:28 pm -
1 stop19h 01m
Mon 1/1812:09 pm -
2 stops26h 54m
Deal found 9/22![Alaska Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 9/22. 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 1/77:00 am -
1 stop8h 23m
Sun 1/102:42 pm -
1 stop7h 13m
Deal found 9/22![United Airlines logo]()
$539
This Alaska Airlines deal was found by Cheapflights users on 9/21. 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 10/146:40 pm -
1 stop31h 10m
Wed 10/2112:05 pm -
1 stop9h 54m
Deal found 9/21![Alaska Airlines logo]()
$601
Last-minute flights from Boston to BillingsDiscover last-minute flight deals from Boston to Billings. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Billings. Data last updated September 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/23. 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 9/262:54 pm -
1 stop7h 13m
Sat 10/36:33 pm -
1 stop9h 57m
Deal found 9/23![Delta logo]()
$485
This Delta deal was found by Cheapflights users on 9/19. 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 9/266:05 am -
1 stop8h 12m
Mon 10/56:33 pm -
1 stop9h 37m
Deal found 9/19![Delta logo]()
$487
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:35 am -
2 stops12h 35m
Tue 10/66:00 am -
2 stops12h 49m
Deal found 9/21![American Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/293:13 pm -
2 stops9h 38m
Tue 10/65:00 am -
1 stop6h 47m
Deal found 9/21![United Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 9/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:29 pm -
1 stop8h 43m
Tue 10/271:21 pm -
1 stop8h 34m
Deal found 9/23![American Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 9/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:29 pm -
1 stop8h 43m
Thu 10/291:21 pm -
1 stop7h 29m
Deal found 9/24![American Airlines logo]()
$491
This American Airlines deal was found by Cheapflights users on 9/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:29 pm -
1 stop8h 43m
Fri 10/301:21 pm -
1 stop7h 29m
Deal found 9/22![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:20 am -
1 stop8h 31m
Wed 11/41:23 pm -
1 stop8h 35m
Deal found 9/21![American Airlines logo]()
$392
One-way flights from Boston to BillingsSearch for one-way flight options from Boston to Billings. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Boston to Billings. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Delta deal was found by Cheapflights users on 9/21. 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 10/313:15 pm -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Delta logo]()
$203
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Sat 10/3112:14 pm -
2 stops11h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$208
This Delta deal was found by Cheapflights users on 9/20. 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 10/56:35 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$245
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:00 am -
1 stop7h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$282
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/112:45 pm -
2 stops10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![United Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/212:45 pm -
2 stops12h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 9/23. 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.
Tue 11/246:05 am -
1 stop8h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$350
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2412:40 pm -
1 stop11h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$380
This Alaska Airlines deal was found by Cheapflights users on 9/21. 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 11/246:00 am -
1 stop10h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Alaska Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 9/23. 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 12/196:40 pm -
1 stop6h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$420
Find flight deals from Boston to Billings
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Billings (BIL). 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 September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $392 (American Airlines) |
One-way from | $203 (Delta) |
Popular in | June |
Cheapest in | March |
Average price | $565 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 7,457,451 searches. Data last updated September 24, 2026.
Use the filters below to find and compare flights from Boston to Billings that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Sat 10/31
3:15 pm-8:15 pm
1 stop7h 00m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$203
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Mon 10/5
6:35 pm-11:15 pm
1 stop6h 40m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$245
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Thu 10/1
12:45 pm-9:10 pm
2 stops10h 25m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$287
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Fri 10/2
12:45 pm-10:53 pm
2 stops12h 08m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$347
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Tue 11/24
6:05 am-12:18 pm
1 stop8h 13m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$350
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Tue 11/24
11:48 am-9:44 pm
2 stops11h 56m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$385
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Tue 11/24
6:00 am-2:51 pm
1 stop10h 51m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$402
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Sat 10/31
11:23 am-9:12 pm
2 stops11h 49m
Billings Logan Intl
Wed 11/4
7:00 am-9:46 pm
2 stops12h 46m
$404
Quickest round-trip
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Sat 12/19
6:40 pm-11:06 pm
1 stop6h 26m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$420
BostonBillings
BOS Boston Logan Intl - BIL Billings Logan Intl
BOSBIL
Boston Logan Intl
Thu 10/1
9:04 am-9:32 pm
3 stops38h 28m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$426
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Boston to Billings
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 Boston to Billings in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Billings flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Billings 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 Boston-Billings 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 Boston to Billings
Have a flexible travel schedule? Discover the best time to fly to Billings from Boston with our price prediction graph.
BOS-BIL
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 Boston to Billings
What is the cheapest month to book a flight from Boston to Billings?
Currently, March is the cheapest month in which you can book a flight from Boston to Billings (average of $419). Flying from Boston to Billings in June is currently the most expensive (average of $717). 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.
How much does it cost to fly round-trip from Boston to Billings?
Airfare is below average for this route at the moment.
Boston to Billings flights typically cost between $404 and $691 in October.The cheapest round-trip price found within the last 5 days was $392 on American Airlines (Oct 31-Nov 4).
Reviews of airlines servicing Billings
Get insights into the airlines that provide service to Billings. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Billings. Reviews last updated September 24, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Boston to Billings have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Related info for your journey
Find useful and relevant information for your journey from Boston to Billings. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Billings flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Boston
Popular flights
Alternative routes for Boston to Billings
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Billings
Explore flights to Billings departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.
Complete your trip
Complete your trip to Billings by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Billings by cabin class
Find flights from Boston to Billings, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Billings flights
Browse other Boston and Billings flight options. Last updated on September 24, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Boston to Billings
Discover the top 3 airlines that operate flights from Boston 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 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$358 | Average$596 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$378 | Average$566 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$398 | Average$515 | FlexibilityNo cancel fee | On-timeN/A |