$109+ Cheap flights from Billings (BIL) to O'Hare Intl (ORD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — ORD
Aug 9 — Aug 161
Round-trip
1 adult, Economy
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Find cheap flights from Billings to O'Hare Intl 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 Billings to O'Hare Intl
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Last-minute
One-way
Cheapest flights from Billings to O'Hare IntlExplore the most affordable flight options available from Billings to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 10, 2026.
Explore the most affordable flight options available from Billings to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 10, 2026.
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/224:35 pm
BIL
- ORD
Nonstop3h 05m
United Airlines
Wed 8/265:00 am
ORD
- BIL
1 stop5h 41m
United Airlines
Deal found 7/6![United Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 7/9. 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 8/125:20 am
BIL
- ORD
1 stop5h 39m
Delta
Tue 8/186:45 pm
ORD
- BIL
1 stop5h 45m
Delta
Deal found 7/9![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 7/9. 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 8/125:20 am
BIL
- ORD
1 stop5h 39m
Delta
Sat 8/2211:22 am
ORD
- BIL
2 stops12h 31m
Delta
Deal found 7/9![Delta logo]()
$276
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/184:40 pm
BIL
- ORD
1 stop6h 19m
United Airlines
Sat 8/225:00 am
ORD
- BIL
1 stop5h 41m
United Airlines
Deal found 7/7![United Airlines logo]()
$286
This United Airlines deal was found by Cheapflights users on 7/8. 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 9/174:07 pm
BIL
- ORD
1 stop6h 52m
United Airlines
Sat 9/198:25 am
ORD
- BIL
Nonstop3h 22m
United Airlines
Deal found 7/8![United Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/1710:00 am
BIL
- ORD
1 stop18h 37m
Multiple Airlines
Thu 8/208:11 pm
ORD
- BIL
1 stop21h 44m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 7/9. 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.
Sat 8/153:44 pm
BIL
- ORD
2 stops15h 18m
Multiple Airlines
Thu 8/208:11 pm
ORD
- BIL
1 stop21h 44m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/1410:00 am
BIL
- ORD
1 stop18h 37m
Multiple Airlines
Thu 8/208:11 pm
ORD
- BIL
1 stop21h 44m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$296
This American Airlines deal was found by Cheapflights users on 7/6. 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 9/2312:28 pm
BIL
- ORD
Nonstop3h 02m
American Airlines
Wed 9/309:41 am
ORD
- BIL
Nonstop3h 16m
American Airlines
Deal found 7/6![American Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 7/9. 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 8/105:20 am
BIL
- ORD
1 stop5h 39m
Delta
Tue 8/186:45 pm
ORD
- BIL
1 stop5h 45m
Delta
Deal found 7/9![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 7/9. 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 8/105:20 am
BIL
- ORD
1 stop5h 39m
Delta
Sat 8/222:30 pm
ORD
- BIL
2 stops9h 23m
Delta
Deal found 7/9![Delta logo]()
$307
Best flights from Billings to O'Hare IntlDiscover carefully curated flight deals from Billings to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 10, 2026.
Discover carefully curated flight deals from Billings to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 10, 2026.
This Delta deal was found by Cheapflights users on 7/5. 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 9/266:20 am
BIL
- ORD
1 stop4h 19m
Delta
Sat 10/38:25 am
ORD
- BIL
2 stops10h 23m
Delta
Deal found 7/5![Delta logo]()
$276
This United Airlines deal was found by Cheapflights users on 7/8. 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 11/74:00 pm
BIL
- ORD
1 stop6h 57m
United Airlines
Wed 11/1112:45 pm
ORD
- BIL
1 stop5h 19m
United Airlines
Deal found 7/8![United Airlines logo]()
$361
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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 9/293:42 pm
BIL
- ORD
2 stops13h 38m
Alaska Airlines
Wed 9/308:10 am
ORD
- BIL
2 stops16h 19m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$491
This Delta deal was found by Cheapflights users on 7/6. 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 9/235:30 am
BIL
- ORD
1 stop5h 25m
Delta
Wed 9/3012:29 pm
ORD
- BIL
2 stops11h 05m
Delta
Deal found 7/6![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 7/9. 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 8/116:26 am
BIL
- ORD
1 stop14h 21m
Delta
Thu 8/201:44 pm
ORD
- BIL
2 stops10h 46m
Delta
Deal found 7/9![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 7/8. 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 9/292:28 pm
BIL
- ORD
1 stop6h 23m
United Airlines
Wed 9/305:00 am
ORD
- BIL
1 stop5h 46m
United Airlines
Deal found 7/8![United Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 7/5. 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.
Thu 9/246:20 am
BIL
- ORD
1 stop4h 19m
Delta
Sat 10/38:25 am
ORD
- BIL
2 stops10h 23m
Delta
Deal found 7/5![Delta logo]()
$410
This United Airlines deal was found by Cheapflights users on 7/5. 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 7/296:00 pm
BIL
- ORD
1 stop5h 44m
United Airlines
Sat 8/15:00 am
ORD
- BIL
1 stop5h 35m
United Airlines
Deal found 7/5![United Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 7/9. 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 8/105:20 am
BIL
- ORD
1 stop5h 39m
Delta
Mon 8/177:44 pm
ORD
- BIL
1 stop16h 23m
Delta
Deal found 7/9![Delta logo]()
$421
This Delta deal was found by Cheapflights users on 7/5. 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.
Fri 9/2512:57 pm
BIL
- ORD
1 stop7h 55m
Delta
Thu 10/11:55 pm
ORD
- BIL
2 stops10h 20m
Delta
Deal found 7/5![Delta logo]()
$441
Last-minute flights from Billings to O'Hare IntlDiscover last-minute flight deals from Billings to O'Hare Intl. Data last updated July 10, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to O'Hare Intl. Data last updated July 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/9. 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 8/105:20 am
BIL
- ORD
1 stop5h 39m
Delta
Tue 8/186:45 pm
ORD
- BIL
1 stop5h 45m
Delta
Deal found 7/9![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 7/9. 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 8/105:20 am
BIL
- ORD
1 stop5h 39m
Delta
Sat 8/222:30 pm
ORD
- BIL
2 stops9h 23m
Delta
Deal found 7/9![Delta logo]()
$307
This Delta deal was found by Cheapflights users on 7/9. 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 8/125:20 am
BIL
- ORD
1 stop5h 39m
Delta
Tue 8/186:45 pm
ORD
- BIL
1 stop5h 45m
Delta
Deal found 7/9![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 7/9. 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 8/125:20 am
BIL
- ORD
1 stop5h 39m
Delta
Sat 8/2211:22 am
ORD
- BIL
2 stops12h 31m
Delta
Deal found 7/9![Delta logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/1410:00 am
BIL
- ORD
1 stop18h 37m
Multiple Airlines
Thu 8/208:11 pm
ORD
- BIL
1 stop21h 44m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 7/9. 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.
Sat 8/153:44 pm
BIL
- ORD
2 stops15h 18m
Multiple Airlines
Thu 8/208:11 pm
ORD
- BIL
1 stop21h 44m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/1710:00 am
BIL
- ORD
1 stop18h 37m
Multiple Airlines
Thu 8/208:11 pm
ORD
- BIL
1 stop21h 44m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$293
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/184:40 pm
BIL
- ORD
1 stop6h 19m
United Airlines
Sat 8/225:00 am
ORD
- BIL
1 stop5h 41m
United Airlines
Deal found 7/7![United Airlines logo]()
$286
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/224:35 pm
BIL
- ORD
Nonstop3h 05m
United Airlines
Wed 8/265:00 am
ORD
- BIL
1 stop5h 41m
United Airlines
Deal found 7/6![United Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 7/9. 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 8/2712:22 pm
BIL
- ORD
Nonstop3h 01m
American Airlines
Mon 8/319:40 am
ORD
- BIL
Nonstop3h 10m
American Airlines
Deal found 7/9![American Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 7/6. 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 8/2712:22 pm
BIL
- ORD
Nonstop3h 01m
American Airlines
Sun 8/309:40 am
ORD
- BIL
Nonstop3h 10m
American Airlines
Deal found 7/6![American Airlines logo]()
$314
One-way flights from Billings to O'Hare IntlSearch for one-way flight options from Billings to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 10, 2026.
Search for one-way flight options from Billings to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 9/145:22 pm
BIL
- ORD
1 stop11h 20m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 10/510:20 pm
BIL
- ORD
1 stop30h 22m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 9/78:53 pm
BIL
- ORD
2 stops15h 43m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 10/910:22 pm
BIL
- ORD
1 stop30h 20m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$161
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/86:00 pm
BIL
- ORD
1 stop5h 44m
United Airlines
Deal found 7/7![United Airlines logo]()
$167
This American Airlines deal was found by Cheapflights users on 7/9. 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 9/812:22 pm
BIL
- ORD
Nonstop3h 01m
American Airlines
Deal found 7/9![American Airlines logo]()
$172
Find flight deals from Billings to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to O'Hare Intl (ORD). 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 July 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (United Airlines) |
One-way from | $109 (Kiwi.com) |
Popular in | March |
Cheapest in | February |
Average price | $411 |
Good round-trip deal | $348 or less |
Good one-way deal | $370 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Billings to O'Hare Intl 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 July 10, 2026.
Use the filters below to find and compare flights from Billings to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Sat 9/26
6:20 am-11:39 am
1 stop4h 19m
Chicago O'Hare Intl
Sat 10/3
8:25 am-5:48 pm
2 stops10h 23m
$276
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Wed 9/23
5:30 am-11:55 am
1 stop5h 25m
Chicago O'Hare Intl
Wed 9/30
12:29 pm-10:34 pm
2 stops11h 05m
$276
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Sat 11/7
4:00 pm-11:57 pm
1 stop6h 57m
Chicago O'Hare Intl
Wed 11/11
12:45 pm-5:04 pm
1 stop5h 19m
$361
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Tue 8/11
6:26 am-9:47 pm
1 stop14h 21m
Chicago O'Hare Intl
Thu 8/20
1:44 pm-11:30 pm
2 stops10h 46m
$404
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Thu 9/24
6:20 am-11:39 am
1 stop4h 19m
Chicago O'Hare Intl
Sat 10/3
8:25 am-5:48 pm
2 stops10h 23m
$410
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Mon 8/10
5:20 am-11:59 am
1 stop5h 39m
Chicago O'Hare Intl
Mon 8/17
7:44 pm-11:07 am
1 stop16h 23m
$421
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Fri 9/25
12:57 pm-9:52 pm
1 stop7h 55m
Chicago O'Hare Intl
Thu 10/1
1:55 pm-11:15 pm
2 stops10h 20m
$441
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Tue 9/29
2:28 pm-9:51 pm
1 stop6h 23m
Chicago O'Hare Intl
Wed 9/30
5:00 am-9:46 am
1 stop5h 46m
$447
Quickest round-trip
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Wed 7/29
6:00 pm-12:44 am
1 stop5h 44m
Chicago O'Hare Intl
Sat 8/1
5:00 am-9:35 am
1 stop5h 35m
$486
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Tue 9/29
3:42 pm-6:20 am
2 stops13h 38m
Chicago O'Hare Intl
Wed 9/30
8:10 am-11:29 pm
2 stops16h 19m
$491
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Billings to O'Hare Intl
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 O'Hare Intl in July.
| 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 Billings-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Billings-Chicago O'Hare Intl Airport 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-Chicago O'Hare Intl Airport 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 O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Billings with our price prediction graph.
BIL-ORD
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 Billings to Chicago O'Hare Intl Airport
What is the cheapest month to book a flight from Billings to Chicago O'Hare Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Billings to Chicago O'Hare Intl Airport (average of $279). Flying from Billings to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $658). 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 BIL to ORD?
Find hourly flight availability from Billings to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 10, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Billings to Chicago O'Hare Intl Airport as you normally would.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated July 10, 2026.
Read through reviews of airlines operating flights from Billings to Chicago O'Hare Intl Airport, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Billings to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Gurnee
Delavan
Oakbrook Terrace
South Holland
Libertyville
Hoffman Estates
Downers Grove
Rockford
Racine
Great Lakes
Joliet
Orland Park
Northbrook
Waukegan
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Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 10, 2026.
Billings and O'Hare Intl flights
Browse other Billings and O'Hare Intl flight options. Last updated on July 10, 2026.
Other flights from Billings
Browse through other flights departing from Billings. Flights are based on user searches made on Cheapflights and were last updated on July 10, 2026.
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Top 3 airlines flying from Billings to O'Hare Intl
Discover the top 3 airlines that operate flights from Billings to O'Hare Intl. 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 July 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$210 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$229 | Average$391 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$249 | Average$399 | FlexibilityNo cancel fee | On-time69% |