$193 Cheap Flights from Boise (BOI) to Missoula (MSO)
Popular airlines from Boise Airport (BOI) to Missoula Intl. Airport (MSO)
Alaska AirlinesAlaska Airlines
DeltaDelta
UnitedUnited
American AirlinesAmerican Airlines
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Cheap Flights from Boise to Missoula (BOI-MSO)
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Boise (BOI) to Missoula (MSO) at a glance
Travel from Boise (BOI) to Missoula (MSO) with a range of airlines on this domestic short-haul route. Whether you’re seeking the cheapest flights from Boise or prefer a full-service experience, you can compare options to find the itinerary that aligns with your budget and schedule. Discover the key information for flights departing from Boise Airport to Missoula International Airport as you plan your adventure exploring the scenic sights and vibrant neighborhoods of Missoula.
- Fastest flight duration: around 3 hours in-flight, plus roughly 1h 30m layover with one stop
- Route distance: roughly 250 miles (400 km)
- Flights per week: around 8 departures on average
- Typical fares (one-way): economy tickets often range from $125–$415, depending on seasonality and how far ahead you book
Flights from Boise Airport (BOI) to Missoula International Airport (MSO)
According to recent traveler bookings, here are the top airlines favored for flights from Boise to Missoula, known for their one-stop service. Common layover points include Seattle-Tacoma International Airport (SEA) with an approximate 1 hour and 30 minutes layover, Salt Lake City International Airport (SLC) at around 1 hour and 45 minutes, and Portland International Airport (PDX) which typically has a 1 hour and 15 minutes layover. This variety allows you to customize your itinerary based on price, total travel time, and cabin class.
- Alaska Airlines: This full-service airline provides one-stop flights, covering about 60% of departures on this route. One-way ticket prices generally range from $135 to $420. Expect an in-flight duration of 3 hours, with the entire trip taking approximately 4 hours and 30 minutes, including the layover.
- Delta: Delta, another full-service carrier, offers one-stop services and accounts for around 37% of the departures on this route. One-way fares typically fall between $125 and $395. You can anticipate a flight time of 3 hours, with the total journey lasting about 4 hours and 30 minutes, factoring in the layover.
Best time to fly from Boise (BOI) to Missoula (MSO)
The most popular months for travelers flying from Boise to Missoula are February, March, and April, when peak temperatures in Missoula reach up to 39.9°F in April. If you prefer quieter travel, consider May, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 50.7°F. For better deals, July usually offers the lowest average one-way fare around $217. Flight availability peaks in January, February, September, and October, with approximately 9 flights per week, making it easier to find convenient departure times. April and August have the fewest flights, with approximately 7 flights per week.
- Cheapest time to fly: July usually offers good deals with average one-way fare around $217, roughly 14% cheaper than the yearly average.
- More budget-friendly months to fly: May and September typically offer average one-way fares roughly ranging from $219 to $237.
- Most flight options: January, February, September, and October have the highest number of flights from Boise to Missoula, with approximately 9 flights per week, giving you more flexibility in scheduling your trip.
| Month | Temperature | Demand | Weekly Flights | Average one-way Fare |
| January | 23.7°F (-4.6°C) | Average | 9 | $273 |
| February | 24.6°F (-4.1°C) | High | 9 | $252 |
| March | 33.1°F (0.6°C) | High | 8 | $244 |
| April | 39.9°F (4.4°C) | High | 7 | $245 |
| May | 50.7°F (10.4°C) | Low | 8 | $219 |
| June | 59.2°F (15.1°C) | Average | 8 | $258 |
| July | 69.3°F (20.7°C) | Average | 8 | $217 |
| August | 67.8°F (19.9°C) | Low | 7 | $243 |
| September | 58.1°F (14.5°C) | Low | 9 | $237 |
| October | 43.2°F (6.2°C) | Average | 9 | $339 |
| November | 30.9°F (-0.6°C) | Average | 8 | $254 |
| December | 23.2°F (-4.9°C) | Average | 8 | $264 |
*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.
How to find the best prices for flights from Boise (BOI) to Missoula (MSO)
Getting some of the best deals on flights from Boise to Missoula is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually found when booking 2 to 8 weeks in advance, which aligns with when most travelers make their reservations. Morning departures between 5 am and 12 pm tend to be less expensive and are also quite popular. Additionally, flying on Tuesday typically offers lower prices, although Friday remains the most favored travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Missoula hotel and flight deals.
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Missoula International Airport from Boise Airport
Missoula welcomes travelers from Boise with a range of transport options based on price, convenience, and proximity. Here's how to reach Missoula efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Missoula, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
- Car rental: Renting a car from Missoula International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Missoula International Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
Boise to Missoula Flights
The cheapest times to fly from Boise to Missoula
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Missoula are during the month of April. You can find some of the cheapest flights from Boise to Missoula with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Boise to Missoula
Sunday is one of the best days to book for cheap flights from Boise to Missoula: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Boise to Missoula
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Missoula in 2026. You can also book with separate airlines for your outbound and return journeys, from $193 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Missoula flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Missoula airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently Asked Questions
How much does a flight from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) cost?
You can find cheap one-way flights from $193 and cheap return flights $398 Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) with Expedia. One-way flights typically cost between $238 and $925, and return flights often range between $339 and $1167. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
December is the cheapest month to fly from Boise (BOI) to Missoula (MSO), with average round-trip fares around $323. This price is about 20% lower than the average throughout the year, as travel demand is typically lower during the winter months. Other budget-friendly months include February and September.
*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
Enter BOI to MSO and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
Alaska Airlines is one of the cheapest airlines offering connecting flights from Boise, ID (BOI) to Missoula, MT (MSO) with return tickets starting from around $193 with a layover in Seattle - Tacoma Intl. (SEA). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
To find a cheap flight from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
The best time to fly from Boise, ID (BOI) to Missoula, MT (MSO) is in December or February. December is popular for travel and has an average price of around $323 for a return flight, making it a great choice for holiday travelers. February also offers lower prices, allowing you to enjoy the winter scenery without overspending.
*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
The earliest flight from Boise Airport (BOI) to Missoula International Airport (MSO) typically departs at around 5:00 AM, operated by United Airlines. This seasonal service is available in May, allowing you to start your day early in Missoula. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
The most popular departure times for flights from Boise (BOI) to Missoula (MSO) are in the late morning, from 9am to 12pm. About 29% of passengers prefer this time window. Many major carriers, including Alaska Airlines, Delta Air Lines, and United Airlines, offer flights during this window. This timing works well because it allows you to enjoy your morning before traveling.
How long does it take to fly from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
Flights from BOI to MSO with one stop typically take around 6 hours 30 minutes, covering approximately 254 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
First class is available on flights from BOI to MSO. First class cabins are available on:
- Delta Air Lines
- United Airlines
- American Airlines
How do I earn miles on a Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) flight with Expedia?
It's easy to earn miles on a Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Missoula from BOI (BOI)?
From BOI (BOI), you can fly into Missoula Intl. (MSO) to reach Missoula. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), Spokane Intl. (GEG) before reaching Missoula. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) at the last minute?
Typically, booking a last minute flight from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) flight and hotel package?
Securing a Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) Missoula Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.)?
If you booked your Boise, ID (BOI) to Missoula, MT (MSO-Missoula Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport | Boise Airport |
|---|---|
Destination airport | Missoula Intl. Airport |
Distance | 253 miles away |
Airlines serving | Alaska Airlines, Delta, United, American Airlines |
Popular airline | Alaska Airlines |
Roundtrip price | $398 |