Which airports can I use when flying from Portland to Great Falls?

Flights from Portland to Great Falls usually depart from Portland (PWM) and arrive at Great Falls (GTF).

What cabin classes can I book on flights from Portland to Great Falls?

Only Economy Class is available on flights from Portland to Great Falls.

Which airports do connecting flights from Portland to Great Falls pass through?

Connecting flights from Portland to Great Falls most commonly pass through: • Denver Intl (DEN) - 50% of one-stop connections • Chicago O'Hare Intl (ORD) - 50% of one-stop connections Together, these airports account for 100% of one-stop bookings on this route.

Can I save money by using flexible dates for flights from Portland to Great Falls?

Yes. Being flexible with your travel dates can save you up to 20% on the Portland to Great Falls route. Thursday is the cheapest departure day at $615 round-trip on average, while Tuesday is the most expensive at $763, a difference of $148. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Portland to Great Falls?

A nonstop flight from Portland to Great Falls takes 0h 00m, covering 1,979 miles.

Do I need a passport to fly from Portland to Great Falls?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Portland to Great Falls changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $468 to $1,116. That means the highest observed fare was about 2x higher than the lowest one.

How much time can I save by choosing a different layover airport from Portland to Great Falls?

Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 7h 27m, compared with 7h 30m via Denver Intl (DEN).

What is the time difference between Portland and Great Falls?

Great Falls is 2 hours behind Portland (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Great Falls Airport (GTF)?

Great Falls Airport (GTF) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include: • Avis • Budget • Alamo • Hertz • Enterprise Rent-A-Car

What is the cheapest airline to fly from Portland to Great Falls?

United Airlines ($468) offered the cheapest round-trip ticket from Portland to Great Falls in the last 5 days.

What is the most popular layover airport when flying from Portland to Great Falls?

Denver Intl (DEN) and Chicago O'Hare Intl (ORD) are the most popular layovers for the Portland to Great Falls route. 50% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN or ORD.

What is the cheapest layover airport when flying from Portland to Great Falls?

Flights via Chicago O'Hare Intl (ORD) offer the most affordable fares, with an average round-trip price of $565. Based on KAYAK data over the past 3 months.

When flying from Portland to Great Falls which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Portland to Great Falls layovers at 254 minutes over the past 3 months.

$468 CHEAP FLIGHTS from Portland to Great Falls (PWM - GTF)

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Cheapest round-trip

$468

Typical prices: $615-$749

United Airlines

Wed 10/31Sun 11/4

PWM - GTF • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Portland and Great Falls. You'll need to take a connecting flight to reach the destination.

Insights

Top layover airports

Chicago O'Hare Intl (ORD)

Cheapest • Avg $565 (round-trip)

Denver Intl (DEN)

Shortest trip • 7h 30m (one-way)

Insights

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Flight Deals

Cheap Flights from Portland to Great Falls (PWM-GTF)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Portland to Great Falls

Sat, Oct 31 - Wed, Nov 4

3:23 pm - 9:38 pmPWM Portland-GTF Great Falls

8h 15m1 stop Denver Intl

6:30 am - 4:02 pmGTF Great Falls-PWM Portland

7h 32m1 stop Denver Intl

$468United Airlines

Sat, Oct 31 - Wed, Nov 4

10:50 am - 9:38 pmPWM Portland-GTF Great Falls

12h 48m2 stops Newark Denver Intl

6:30 am - 4:02 pmGTF Great Falls-PWM Portland

7h 32m1 stop Denver Intl

$474United Airlines

Sat, Oct 31 - Wed, Nov 4

5:30 am - 9:38 pmPWM Portland-GTF Great Falls

18h 08m3 stops Washington, D.C. Dulles Intl San Francisco Denver Intl

6:30 am - 4:02 pmGTF Great Falls-PWM Portland

7h 32m1 stop Denver Intl

$479United Airlines

Sat, Oct 31 - Wed, Nov 4

3:23 pm - 9:38 pmPWM Portland-GTF Great Falls

8h 15m1 stop Denver Intl

6:30 am - 4:02 pmGTF Great Falls-PWM Portland

7h 32m1 stop Denver Intl

$488United Airlines

Sat, Oct 31 - Wed, Nov 4

10:50 am - 9:38 pmPWM Portland-GTF Great Falls

12h 48m2 stops Newark Denver Intl

6:30 am - 4:02 pmGTF Great Falls-PWM Portland

7h 32m1 stop Denver Intl

$494United Airlines

Sat, Oct 31 - Wed, Nov 4

5:30 am - 9:38 pmPWM Portland-GTF Great Falls

18h 08m3 stops Washington, D.C. Dulles Intl San Francisco Denver Intl

6:30 am - 9:51 pmGTF Great Falls-PWM Portland

13h 21m2 stops Denver Intl Chicago O'Hare Intl

$529United Airlines

Sat, Oct 31 - Wed, Nov 4

5:30 am - 9:38 pmPWM Portland-GTF Great Falls

18h 08m3 stops Washington, D.C. Dulles Intl San Francisco Denver Intl

6:30 am - 9:51 pmGTF Great Falls-PWM Portland

13h 21m2 stops Denver Intl Chicago O'Hare Intl

$563United Airlines

Sat, Oct 31 - Wed, Nov 4

5:30 am - 9:38 pmPWM Portland-GTF Great Falls

18h 08m3 stops Washington, D.C. Dulles Intl San Francisco Denver Intl

6:30 am - 9:51 pmGTF Great Falls-PWM Portland

13h 21m2 stops Denver Intl Chicago O'Hare Intl

$623United Airlines

Sat, Oct 31 - Wed, Nov 4

6:00 am - 9:38 pmPWM Portland-GTF Great Falls

17h 38m3 stops Newark San Francisco Denver Intl

6:30 am - 4:02 pmGTF Great Falls-PWM Portland

7h 32m1 stop Denver Intl

$628United Airlines

Sat, Oct 31 - Wed, Nov 4

5:30 am - 9:38 pmPWM Portland-GTF Great Falls

18h 08m3 stops Washington, D.C. Dulles Intl San Francisco Denver Intl

2:45 pm - 11:21 pmGTF Great Falls-PWM Portland

30h 36m3 stops Denver Intl Houston George Bush Intcntl Newark

$660United Airlines

Booking Insights

Price, demand and travel trends for Portland to Great Falls flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Portland to Great Falls with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Portland to Great Falls?

Round-trip flights from Portland to Great Falls start at $468. Prices are below average for this route right now, with typical round-trip fares ranging from $615 to $749. The lowest price found in the past 5 days was $468 on United Airlines.

Find deals

When to book flights from Portland to Great Falls

Are your dates flexible? Find out the best times to travel from Portland to Great Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Portland to Great Falls?
Flights from Portland to Great Falls usually depart from Portland (PWM) and arrive at Great Falls (GTF).
What cabin classes can I book on flights from Portland to Great Falls?
Only Economy Class is available on flights from Portland to Great Falls.
Which airports do connecting flights from Portland to Great Falls pass through?
Connecting flights from Portland to Great Falls most commonly pass through:

• Denver Intl (DEN) - 50% of one-stop connections
• Chicago O'Hare Intl (ORD) - 50% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.
Can I save money by using flexible dates for flights from Portland to Great Falls?
Yes. Being flexible with your travel dates can save you up to 20% on the Portland to Great Falls route. Thursday is the cheapest departure day at $615 round-trip on average, while Tuesday is the most expensive at $763, a difference of $148. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How long is a flight from Portland to Great Falls?
A nonstop flight from Portland to Great Falls takes 0h 00m, covering 1,979 miles.
Do I need a passport to fly from Portland to Great Falls?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Portland to Great Falls changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $468 to $1,116. That means the highest observed fare was about 2x higher than the lowest one.
How much time can I save by choosing a different layover airport from Portland to Great Falls?
Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 7h 27m, compared with 7h 30m via Denver Intl (DEN).
What is the time difference between Portland and Great Falls?
Great Falls is 2 hours behind Portland (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Great Falls Airport (GTF)?
Great Falls Airport (GTF) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include:
• Avis
• Budget
• Alamo
• Hertz
• Enterprise Rent-A-Car

If your dates can be flexible, aim for a Thursday departure instead of Tuesday. On this route, Thursday flights average $615 - about $148 less than Tuesday (19% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Great Falls Airport.
- Crystal Inn Hotel & Suites - Great Falls
- Hilton Garden Inn Great Falls
- Hampton Inn Great Falls

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$468 Find Cheap Flights from Portland to Great Falls - Compare and Save

Everything you should know

Cheap Flights from Portland to Great Falls (PWM-GTF)

Recent round-trip flight deals from Portland to Great Falls

Recent one-way flight deals from Portland to Great Falls

Price, demand and travel trends for Portland to Great Falls flights

How much is a round-trip flight from Portland to Great Falls?

What is the cheapest airline to fly from Portland to Great Falls?

What is the most popular layover airport when flying from Portland to Great Falls?

What is the cheapest layover airport when flying from Portland to Great Falls?

When flying from Portland to Great Falls which airport offers the shortest layover?

When to book flights from Portland to Great Falls

Your Portland to Great Falls flight questions, answered

Your guide to booking Portland to Great Falls flights

More options for your flight from Portland to Great Falls

Complete your trip to Great Falls with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Portland to Great Falls

Find direct flights to and from Portland and Great Falls

Flights from domestic origins to Great Falls

Flights to other popular destinations