$224 Cheap United flights Missoula (MSO) to Denver (DEN)

View $224 flight on Fri, Sep 19, 2025Opens in a new window

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$224 Cheap United flights Missoula (MSO) to Denver (DEN)

Prices were available within the past 7 days and start at $224 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Sep 19 - Sun, Sep 21
MSO
Missoula
DEN
Denver
$209 Roundtrip, found 6 hours ago
$209
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Sep 19 from Missoula to Denver, returning Sun, Sep 21, priced at $209 found 6 hours ago
United
Wed, Jan 21 - Sun, Feb 1
MSO
Missoula
DEN
Denver
$219 Roundtrip, found 12 hours ago
$219
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Jan 21 from Missoula to Denver, returning Sun, Feb 1, priced at $219 found 12 hours ago
United
Thu, Oct 16 - Sun, Oct 19
MSO
Missoula
DEN
Denver
$249 Roundtrip, found 11 hours ago
$249
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Oct 16 from Missoula to Denver, returning Sun, Oct 19, priced at $249 found 11 hours ago
United
Tue, Aug 12 - Sat, Aug 16
MSO
Missoula
DEN
Denver
$259 Roundtrip, found 9 hours ago
$259
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Aug 12 from Missoula to Denver, returning Sat, Aug 16, priced at $259 found 9 hours ago
Flights from Missoula (MSO) to Denver (DEN)
Origin airport
Missoula Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Popular airline
Alaska Airlines
Distance
678 mi
Average flight time
2 hours 8 mins

Frequently asked questions

How much is a United Airlines flight from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN)?
Make use of the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines round-trip flights from $209 from MSO to DEN. Affordable one-way options from $224 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MSO to DEN with United Airlines?
January is one of the most affordable months to jet away to Denver with United Airlines. You could also find great deals on return and one-way tickets in November.
What is the cheapest time to book flights from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN) with United Airlines?
Begin your search one to three months ahead of your travel date to score cheaper fares on United Airlines flights from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN)?
You can easily fly from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN) on any of United Airlines's 19 weekly direct flights. Use Expedia's "Nonstop" and "Airline" filters to find the United Airlines flight that'll take you to DEN at a time that suits you.
How long does it take to fly from MSO to DEN with United Airlines?
The travel time for a nonstop United Airlines flight from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN) typically takes 2h 10m.
Which day of the week has the most United Airlines flights from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN)?
If it's flexibility you're after, Thursday offers the most choice for United Airlines flights from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN). You can pick from 3 different departures.
What is the earliest United Airlines flight from MSO to DEN?
Departing MSO at 6:30AM UTC-7, the earliest United Airlines flight to DEN arrives at 8:46AM UTC-7. Flying early means you're less likely to encounter delays.* Prefer to travel later? The last United Airlines flight from MSO to DEN departs at 5:03PM UTC-7 and touches down at 7:15PM UTC-7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Denver?
Denver Intl. Airport (DEN) is the main Denver gateway for United Airlines flights from Missoula Intl. Airport (MSO).
Why fly with United Airlines from MSO to DEN?
With a rewarding loyalty program, United Airlines is a top choice for many passengers journeying from MSO to DEN. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN)?
For the Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN) route, United Airlines typically operates Boeing 737-900 and Boeing 737-800 planes. Don't forget that last-minute changes are possible for operational reasons, meaning your flight could be on another aircraft.
Can I change or cancel my United Airlines flight from Missoula Intl. Airport (MSO) to Denver Intl. Airport (DEN)?
Depending on the type of ticket you purchased, a fee generally applies if you modify or cancel your booking more than 24 hours after confirmation. To secure flexible plane tickets, select our "No cancel fee" or "Changes included" filter while searching for flights. For additional information on changing or canceling your reservation, head to "Trips," select your flight and tick "Manage Booking."

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