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$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
Sep 2 — Sep 91
Tue 9/2
Tue 9/9
1 adult, Economy
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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 August 28, 2025.

Round-trip from

$2,305
(United Airlines)
From Montana to Guam
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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 August 28, 2025.

This United Airlines deal was found by Cheapflights users on 8/26. 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 12/27:25 amGUM - HLN
2 stops23h 22mUnited Airlines
Deal found 8/26$2,305

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 August 28, 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

7:25 am-1:47 pm

2 stops23h 22m

$2,305

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/26

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.

  • 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.

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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 August 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,522Average$2,924FlexibilityNo cancel feeOn-time69%

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