HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Guam

$2,305+ Cheap flights from Montana to Guam

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — GUM
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montana to Guam 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 Montana to Guam

Keep the following information in mind while searching for Montana to Guam flight deals. Data was last updated September 16, 2025.

Round-trip from

$2,305
(United Airlines)
From Montana to Guam
Search Deals

Find flight deals from Montana to Guam

Cheapest flights from Montana to Guam
Explore the most affordable flight options available from Montana to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 11/286:40 amHLN - GUM
2 stops22h 05mUnited Airlines
Tue 12/27:40 amGUM - HLN
2 stops23h 07mUnited Airlines
Deal found 9/14$2,305
This Delta deal was found by Cheapflights users on 9/15. 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 11/281:06 pmHLN - GUM
2 stops40h 59mDelta
Mon 12/11:00 amGUM - HLN
2 stops52h 26mDelta
Deal found 9/15$2,372

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to Guam 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 September 16, 2025.
Use the filters below to find and compare flights from Montana to Guam that are best for you.

Fly from

Montana

Fly to

Guam

Route

Depart

Return

Price

HelenaTamuning

HLN - GUM

HLNGUM

Helena

Fri 11/28

6:40 am-9:45 pm

2 stops22h 05m

Tamuning Guam Intl

Tue 12/2

7:40 am-1:47 pm

2 stops23h 07m

$2,305

HelenaTamuning

HLN - GUM

HLNGUM

Helena

Fri 11/28

1:06 pm-11:05 pm

2 stops40h 59m

Tamuning Guam Intl

Mon 12/1

1:00 am-12:26 pm

2 stops52h 26m

$2,372

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Montana to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Montana with our price prediction graph.
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 Montana to Guam
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Montana to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montana to Guam?

    Departing from Montana to Guam will take you 22h 05m. The distance from Montana to Guam is about 6148 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Montana to Guam that include hotel bookings?

    Yes. In addition to deals on Montana to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to Guam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Guam.

  • Can I find deals for business class flights from Montana to Guam?

    Yes. Cheapflights offers flight deals from Montana to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montana to Guam?

    Currently, January is the cheapest month in which you can book a flight from Montana to Guam (average of $1,977). Flying from Montana to Guam in May is currently the most expensive (average of $2,214). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montana to Guam

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights
Los Angeles to Auckland flights
Los Angeles to Melbourne flights
San Francisco to Sydney flights
San Francisco to Auckland flights
Los Angeles to Papeete flights
John F Kennedy Intl to Sydney flights
John F Kennedy Intl to Auckland flights
John F Kennedy Intl to Melbourne flights
Dallas/Fort Worth to Sydney flights
Dallas/Fort Worth to Auckland flights
Newark to Sydney flights
Los Angeles to Brisbane flights
LaGuardia to Sydney flights
San Francisco to Melbourne flights
Seattle to Sydney flights
Newark to Melbourne flights
Dulles Intl to Sydney flights
Seattle to Auckland flights
Hobby to Sydney flights
Seattle to Melbourne flights
Dallas/Fort Worth to Melbourne flights
Salt Lake City to Christchurch flights
Newark to Auckland flights
George Bush Intcntl to Sydney flights
Dulles Intl to Melbourne flights
San Francisco to Papeete flights
Dallas/Fort Worth to Brisbane flights
LaGuardia to Auckland flights
Ontario to Sydney flights
Honolulu to Sydney flights
Salt Lake City to Queenstown flights
Santa Ana to Sydney flights
O'Hare Intl to Sydney flights
Reagan-National to Sydney flights
LaGuardia to Melbourne flights
Boston to Sydney flights
Baltimore to Sydney flights
Boston to Auckland flights
Santa Ana to Auckland flights
Ontario to Auckland flights
Atlanta to Sydney flights
Los Angeles to Avalon flights
Denver to Auckland flights
Baltimore to Melbourne flights
Hobby to Auckland flights
O'Hare Intl to Auckland flights
Portland to Auckland flights
Los Angeles to Nadi flights
John F Kennedy Intl to Avalon flights

Top airline flying from Montana to Guam

Discover the top airline that operate flights from Montana to Guam. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,522Average$2,924FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.