Flights To Petroleum County - Cheap Flights Starting at CA $197

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How Much Does it Cost To Fly To Petroleum County?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Wed, Dec 30 - Wed, Jan 6
SEA
Seattle - Tacoma Intl.
BIL
Logan Intl.
CA $406 Roundtrip, found 1 day ago
CA $406
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Dec 30 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Jan 6, priced at CA $406 found 1 day ago
Fri, Feb 19 - Sun, Feb 21
SEA
Seattle - Tacoma Intl.
BIL
Logan Intl.
CA $413 Roundtrip, found 1 day ago
CA $413
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Feb 19 from Seattle - Tacoma Intl. to Logan Intl., returning Sun, Feb 21, priced at CA $413 found 1 day ago
Fri, Dec 4 - Sun, Dec 13
LAS
Harry Reid Intl.
BIL
Logan Intl.
CA $426 Roundtrip, found 12 hours ago
CA $426
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Dec 4 from Harry Reid Intl. to Logan Intl., returning Sun, Dec 13, priced at CA $426 found 12 hours ago
Fri, Dec 4 - Sun, Dec 13
LAS
Harry Reid Intl.
BIL
Logan Intl.
CA $427 Roundtrip, found 12 hours ago
CA $427
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Dec 4 from Harry Reid Intl. to Logan Intl., returning Sun, Dec 13, priced at CA $427 found 12 hours ago
Wed, Dec 30 - Wed, Jan 6
SEA
Seattle - Tacoma Intl.
BIL
Logan Intl.
CA $428 Roundtrip, found 1 day ago
CA $428
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Dec 30 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Jan 6, priced at CA $428 found 1 day ago
Fri, Dec 4 - Sun, Dec 13
LAS
Harry Reid Intl.
BIL
Logan Intl.
CA $483 Roundtrip, found 12 hours ago
CA $483
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Dec 4 from Harry Reid Intl. to Logan Intl., returning Sun, Dec 13, priced at CA $483 found 12 hours ago
Fri, Feb 19 - Sun, Feb 21
SEA
Seattle - Tacoma Intl.
BIL
Logan Intl.
CA $505 Roundtrip, found 1 day ago
CA $505
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Feb 19 from Seattle - Tacoma Intl. to Logan Intl., returning Sun, Feb 21, priced at CA $505 found 1 day ago
Fri, Dec 4 - Sun, Dec 13
LAS
Harry Reid Intl.
BIL
Logan Intl.
CA $523 Roundtrip, found 12 hours ago
CA $523
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Dec 4 from Harry Reid Intl. to Logan Intl., returning Sun, Dec 13, priced at CA $523 found 12 hours ago
Thu, Oct 15 - Sun, Oct 18
YYZ
Pearson Intl.
BIL
Logan Intl.
CA $613 Roundtrip, found 6 days ago
CA $613
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Oct 15 from Pearson Intl. to Logan Intl., returning Sun, Oct 18, priced at CA $613 found 6 days ago
Thu, Oct 29 - Mon, Nov 2
YYZ
Pearson Intl.
BIL
Logan Intl.
CA $630 Roundtrip, found 11 hours ago
CA $630
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Thu, Oct 29 from Pearson Intl. to Logan Intl., returning Mon, Nov 2, priced at CA $630 found 11 hours ago
Sat, Oct 24 - Sat, Oct 31
YVR
Vancouver Intl.
BIL
Logan Intl.
CA $667 Roundtrip, found 6 days ago
CA $667
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Oct 24 from Vancouver Intl. to Logan Intl., returning Sat, Oct 31, priced at CA $667 found 6 days ago
OriginDestinationTravel datesFlights from*
SEABillingsDecember 30 to January 6CA $406
*Prices include taxes and fees
OriginDestinationTravel datesFlights from*
SEABillingsOctober 4 to October 8CA $980
*Prices include taxes and fees

Travelers ❤️ These Petroleum County 🏨

​The CMR Island: 80 acres Borders Refuge on 3 Sides Unit 410 Basecamp

​The CMR Island: 80 acres Borders Refuge on 3 Sides Unit 410 Basecamp

Winnett MT
Stay at this cabin in Winnett. Enjoy air conditioning.
10/10 Exceptional! (1 review)
"This is a very remote property. The surrounding area is amazingly beautiful and the wildlife is incredible. The residence has 3 bedrooms and sleeps well. The AC was helpful with the warmer temps that I experienced and the tv and WiFi were very reliable. I would definitely come back to enjoy the surroundings. ..."

Reviewed on Sep 27, 2026

Opens in a new window​The CMR Island: 80 acres Borders Refuge on 3 Sides Unit 410 Basecamp
Small Town Big Sky

Small Town Big Sky

Winnett MT
Stay at this vacation home in Winnett. Enjoy free WiFi, a garden, and laundry facilities.
9.6/10 Exceptional! (8 reviews)
"Awesome place, great for groups."

Reviewed on Jun 12, 2026

Opens in a new windowSmall Town Big Sky
Harry's House....Simple Sleeping

Harry's House....Simple Sleeping

Roy MT
Stay at this cabin in Roy. Enjoy an in-room coffeemaker and air conditioning.
9.8/10 Exceptional! (94 reviews)
"Clean, cute and quiet. Great no-frills home base for your day trip/s. Bring EVERYTHING you may need for sleeping/eating/shower. 2 adult size twin beds w/ bottom fitted sheet. Bring your own bedding. A full-zip sleeping bag works great. Matresses were comfortable. Small microwave and full size fridge. ..."

Reviewed on Sep 30, 2026

Opens in a new windowHarry's House....Simple Sleeping
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Montana Country Retreat w/ Hot Tub-Near Lewistown

Montana Country Retreat w/ Hot Tub-Near Lewistown

Grass Range MT
Stay at this vacation home in Grass Range. Enjoy free WiFi, a garden, and laundry facilities.
10/10 Exceptional! (4 reviews)
"Gorgeous home and very clean! The host was so kind and accommodating for us. We got to see many deer and prong horn! The neighbor even gave us a great spot to see Elk and it was amazing!!"

Reviewed on Aug 7, 2026

Opens in a new windowMontana Country Retreat w/ Hot Tub-Near Lewistown
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is the cheapest flight to Petroleum County?
To give you a ballpark figure, the cheapest roundtrip flight to Petroleum County was CA $406 during the last seven days. An excellent way to snap up a good deal is to be flexible with your dates. This price was available on Travelocity for flights to Petroleum County departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly to Petroleum County?
Splash out more money on epic adventures and less on airfares by zipping off to Petroleum County in December. This is the best-priced month to jet off to this destination according to Travelocity's direct return flight demand between January and December last year. Take a peek at our selection of flights and get out of town without breaking the bank.
How can I check my flight status to Petroleum County?
"Trips" should be your first stop when it comes to the details of your flight to Petroleum County. Travelocity's customer portal lets you handle everything in the one place, from checking the status of your flight to changing or canceling your booking. Click on Trips at the top of the Travelocity homepage and then create a new account or sign in to an existing one. Or you can download the Travelocity app and access your itinerary on the go. Whether you've got the family flying with you or you're on your own, all your travel plans are right at your fingertips.
How do I find the best deals on flights to Petroleum County?
There are a few ways — book in advance, avoid peak season and be flexible with your travel dates. If your dates aren't set in stone, search for your flight to Petroleum County on Travelocity and click on "Flexible dates" above your results. This will help you locate any cheaper fares on surrounding days. CA $406 was the best deal for a return flight to Petroleum County in the last seven days. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to Petroleum County with Travelocity?
Browse cheap flights to Petroleum County with Travelocity and start planning your next vacation. With round-the-clock customer support throughout every step of the process and our Price Match Guarantee, we take the difficulty out of finding cheap family flights, accommodations and more. Get your hands on a great deal today and gear up for the adventure of your dreams.
What are the most popular flight routes to Petroleum County?
To help you choose your flights to Petroleum County, here's our list of some of the preferred routes:

  • Sidney, MT (SDY-Sidney-Richland Municipal) to Logan Intl. Airport (BIL) - 1,061 flights a month.
  • Denver, CO (DEN-Denver Intl.) to Logan Intl. Airport (BIL) - 862 flights a month.
  • Salt Lake City, UT (SLC-Salt Lake City Intl.) to Logan Intl. Airport (BIL) - 637 flights a month.

How much is a flight to Petroleum County on average?
Passengers have found roundtrip flights to Petroleum County for between CA $406 and CA $980 with Travelocity in the last seven days. Whether you want to fly economy or business class, we'll help you land the best deal. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.