How do I get Price Alerts for flights from Portland, Maine to Great Falls?

Search flight deals from Portland, Maine to Great Falls . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Portland, Maine to Great Falls with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

When did momondo last update prices for flights from Portland Airport to Great Falls Airport?

Prices for flights from Portland Airport to Great Falls Airport refresh daily.

How many operators does momondo search for flights from Portland Airport to Great Falls Airport?

As of February 2026, there is 1 operator available to choose from for flights from Portland Airport to Great Falls Airport.

How old do you have to be to fly from Portland Airport to Great Falls Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,040 Cheap Flights from Portland to Great Falls in 2026

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When to book flights from Portland, Maine to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Great Falls according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland, Maine to Great Falls (PWM to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Great Falls

Fastest flight time	17h 15m
Direct flights	None

The fastest flight from Portland, Maine to Great Falls takes 17h 15m

There are no direct flights from Portland, Maine to Great Falls. There are no popular flight routes from Portland, Maine to Great Falls.

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How far is Portland to Great Falls by plane?
The straight-line distance from Portland to Great Falls is 1977.7 mi. In terms of flight time, this usually takes a little over 17h 15m.
When did momondo last update prices for flights from Portland Airport to Great Falls Airport?
Prices for flights from Portland Airport to Great Falls Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to Great Falls Airport?
As of February 2026, there is 1 operator available to choose from for flights from Portland Airport to Great Falls Airport.
How old do you have to be to fly from Portland Airport to Great Falls Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Portland, Maine to Great Falls?
Based on momondo bookings for flights between Portland, Maine and Great Falls, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Portland, Maine to Great Falls

Compare and see reviews for airlines that fly from Portland, Maine to Great Falls with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $340	Free Cancellation	Rating 7.4 9,229 reviews		Search United Airlines flights

How do I get Price Alerts for flights from Portland, Maine to Great Falls?
Search flight deals from Portland, Maine to Great Falls. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Portland, Maine to Great Falls with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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Why use momondo?

Why should I use momondo to find a flight deal from Portland to Great Falls?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Great Falls. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Great Falls with flexible booking policies on momondo?

All flight searches from Portland to Great Falls on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Great Falls?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Great Falls.

I’m not ready to book a flight from Portland to Great Falls right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Great Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Great Falls and let you know when they change.