$55 Cheap flights to Petroleum County

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Cheap flights to Petroleum County from $55 One Way, $120 Round Trip

$120 return flights and $55 one-way flights to Petroleum County were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 15 - Fri, Jan 22
AZA
Mesa
BIL
Billings
$120 Roundtrip, found 1 day ago
$120
Roundtrip
found 1 day ago
Select Allegiant Air flight, departing Fri, Jan 15 from Mesa to Billings, returning Fri, Jan 22, priced at $120 found 1 day ago
Fri, Feb 5 - Mon, Feb 8
AZA
Mesa
BIL
Billings
$122 Roundtrip, found 4 days ago
$122
Roundtrip
found 4 days ago
Select Allegiant Air flight, departing Fri, Feb 5 from Mesa to Billings, returning Mon, Feb 8, priced at $122 found 4 days ago
Fri, Jan 15 - Fri, Jan 22
AZA
Mesa
BIL
Billings
$125 Roundtrip, just found
$125
Roundtrip
just found
Select Allegiant Air flight, departing Fri, Jan 15 from Mesa to Billings, returning Fri, Jan 22, priced at $125 just found
Wed, Dec 2 - Mon, Dec 7
PHX
Phoenix
BIL
Billings
$171 Roundtrip, found 4 days ago
$171
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 2 from Phoenix to Billings, returning Mon, Dec 7, priced at $171 found 4 days ago
Wed, Jan 27 - Sat, Jan 30
PHX
Phoenix
BIL
Billings
$177 Roundtrip, found 3 days ago
$177
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Jan 27 from Phoenix to Billings, returning Sat, Jan 30, priced at $177 found 3 days ago
Sat, Dec 5 - Wed, Dec 9
SEA
Seattle
BIL
Billings
$187 Roundtrip, found 1 day ago
$187
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 5 from Seattle to Billings, returning Wed, Dec 9, priced at $187 found 1 day ago
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Deals For This Weekend's Flights

OriginDestinationTravel DatesFlights From*
SEABillingsNovember 15 to November 21$436
BWIBillingsNovember 13 to November 16$605
BOIBillingsNovember 15 to November 21$820
SLCBillingsNovember 13 to November 18$1,026
*Prices include taxes and fees

Find The Perfect Hotel For After Your Flight

Score Epic Petroleum County Accommodation Deals

​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

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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

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

Harry's House....Simple Sleeping

Roy MT
$77 nightly
The price is $83 total per night from Nov 11 to Nov 12
$83 total
Nov 11 - Nov 12
Total with taxes and fees
Stay at this cabin in Roy. Enjoy an in-room coffeemaker and air conditioning.
9.8/10 Exceptional! (96 reviews)
"Everything was great, we never talked to the owner but the door had our code and we were able to access the property with no trouble. Very quiet neighborhood, I would recommend this if you need a room in Roy, MT."

Reviewed on Oct 19, 2026

Opens in a new windowHarry's House....Simple Sleeping
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Near Hunting: Cozy Cabin w/ Deck in Grass Range!

Near Hunting: Cozy Cabin w/ Deck in Grass Range!

3 out of 5
Grass Range MT
$232 nightly
The price is $251 total per night from Nov 15 to Nov 16
$251 total
Nov 15 - Nov 16
Total with taxes and fees
Stay at this cottage in Grass Range. Enjoy free parking and in-room fireplaces.
10/10 Exceptional! (2 reviews)
"Great place to stay! Great hosts and amenities!"

Reviewed on Jul 4, 2026

Opens in a new windowNear Hunting: Cozy Cabin w/ Deck in Grass Range!
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.

Need a Car For After Your Flight?

Economy

Chevrolet Spark
  • 4 people
Chevrolet Spark
Economy Chevrolet Spark

Compact

Ford Focus
  • 4 people
Ford Focus
Compact Ford Focus

Midsize

Toyota Corolla
  • 5 people
Toyota Corolla
Midsize Toyota Corolla

SUV

Jeep Compass
  • 5 people
Jeep Compass
SUV Jeep Compass

Petroleum County

Orbitz provides convenient, one-stop shopping for travelers looking for budget flights to Petroleum County or any other low fare domestic or international air travel.

Innovative Orbitz Tools for the Trip Planner on the Move

Now it is even faster to find exclusive deals and book cheap Petroleum County flights from any location with our new Orbitz apps. These cutting-edge mobile tools are available free to anyone with an Android device, iPad, or iPhone. Look up Petroleum County's most popular attractions, best restaurants, and entertainment venues or check on your flights to Petroleum County and make changes to your itinerary while waiting in line for your latte.

Stay on Budget, Earn Miles with Bargain Petroleum County Flights

You can find amazing discount fares with Orbitz’s guaranteed low prices or take advantage of last-minute sales and special travel packages. You can also earn points towards your airline frequent flyer programs when you book qualified flights to Petroleum County. That means you can rack up money-saving points and miles for future use while saving money now.

We Are Just a Phone Call Away If You Need Us

Booking, changing, or canceling your Petroleum County flights is a breeze with Orbitz’s online and mobile tools, but that doesn't mean that we leave you hanging if you want to speak with one of our representatives. If you need help, just contact our Customer Service by email or phone. To enjoy a less stressful trip, be sure to sign up for instant alerts so we can send you any updates or delays relating to your flights to Petroleum County to your mobile phone or email.

Frequently asked questions

Which airlines fly to Petroleum County?
You're spoiled for choice with 12 major airlines that travel to Logan Intl. Airport (BIL). Compare ticket prices and land yourself an affordable flight to Petroleum County with any one of these leading carriers:

  • Cape Air - 140 flights to Petroleum County per month
  • Delta - 62 flights to Petroleum County per month
  • United Airlines - 48 flights to Petroleum County per month

How much is a flight to Petroleum County?
Last week, prices hovered between $120 and $1,026 for a return fare to Petroleum County. One-way flights originating from Mesa (AZA) sank as low as just $55 over the same period.
How to book the cheapest flight to Petroleum County?
With some of the best flight deals around, you can jet for less with Orbitz. The following tips and hints will help you score cheap flights to Petroleum County — and leave you with extra cash in your wallet:

  • Depending on where you're departing from, click on the 'Nearby airports' function (located under the departure and arrival options). In certain cases, alternative departure points offer better value for money.
  • Similarly, click on the 'Show flexible dates' link to bring up the prices for days around your chosen departure. You may be able to pick up cheaper flight deals if your itinerary is flexible.
  • Hit 'Show options' to fine tune your search results. You can pick your preferred seating class and airline here. Under 'Sort & Filter' to the left, you can even specify whether you'd like to fly in the morning, afternoon or evening.
  • The early bird catches the most rewarding savings, so book as soon as you've worked out your travel dates. The cheapest airfares sell fast and prices rise as the departure date nears.
  • Combine your flights, hotels and car rentals into a value-for-money package deal. Save your hard-earned dollars for things you're really excited about, like exploring every corner of Petroleum County.
  • Flying during the busy season can mean steep airfares. Try to plan your trip outside of popular dates, such as Easter, Thanksgiving and school breaks.

What is the best time to book a flight to Petroleum County?
If you can, book your tickets to Petroleum County in January. This is the best month to reserve low airfares, closely followed by February and August. With a bit of organizing, you're bound to find a cheap flight with Orbitz.
What day of the week is the cheapest to book a flight to Petroleum County?
Make a booking on a Tuesday, Wednesday or Saturday. Generally, these are the cheapest days of the week to purchase fares to Petroleum County. The vacation of your dreams starts with a great flight deal!
What is the cheapest day of the week to fly to Petroleum County?
According to Orbitz data from 2020, you'll want to kick off your vacation on a Monday to nab cheap flights to Petroleum County. Next cheapest day? Tuesday. Saturday will cost the most. So, think about departing early in the week if you want to score a wallet-friendly fare without paying premium prices.
What is the cheapest month to fly to Petroleum County?
According to Orbitz data, you should fly out in August. This is generally an excellent month to pick up cheap flights to Petroleum County. It's worth bearing in mind that the most expensive time to jet off is during the month of June.
Which airlines allow free cancellation?
We know that plans can change and flexibility is important. That's why you can search for flights that have free cancellation and no change fees on Orbitz. Simply click on "Filter by flexible change policies" and we'll find you fares with more flexibility than a lollipop left in the sun!
What do I need for the flight to Petroleum County?
There's so much to sort out for any big trip, so it's useful to get a little bit of help along the way. Here are a few suggestions to make sure you're prepared for departure:

  • You'll need to take all your travel documents and your identification. How much depends on your place of departure. When reserving your ticket, always use the exact name, birth date and gender as indicated on your current ID.
  • A properly packed carry-on bag is just the ticket for a comfortable flight experience. Given this journey to Petroleum County is no short hop, take a few snacks and things to keep you busy. A good book or magazine is sure to help you pass the time.
  • Airplane cabins are often chilly. If you decide to fly during the height of the Petroleum County summer, be sure to bring a sweater on board just in case.

How do I get cheap first-class/business deals to Petroleum County?
Smart travelers have a knack for finding business or first-class airfares to Petroleum County without the hefty price tag. Take their lead with these useful hints:

  • Be more flexible with your travel dates and hold out for deals on business or first-class airfares.
  • Budget airlines offer first or business-class seats at more affordable prices. Give the full-service carriers a miss and go with one of these cheaper options.
  • Take advantage of your airline's loyalty program and use points to upgrade your seat. You can also bid for an upgrade in an online auction.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.