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Great Falls International Airport to Portland International Airport flight

Explore the cheapest one-way and round-trip flights from Great Falls International Airport to Portland International Airport over the next 90 days, with one-way fares from US$199 and round-trip from US$387. Based on Trip.com's latest 7-day flight data.

      • GTF 17:15
        5h 41m
        1 stop
        PDX 21:56
        Great Falls - Portland | Sat, Nov 14 | Alaska Airlines
        PDX 09:31
        6h 4m
        1 stop
        GTF 16:35
        Portland - Great Falls | Wed, Nov 18 | Alaska Airlines
        US$387 US$984
        61% off
        61% off
        US$984 US$387
      • GTF 17:15
        21h 9m
        1 stop
        PDX 13:24
        Great Falls - Portland | Fri, Nov 13 | Alaska Airlines
        PDX 05:06
        10h 29m
        1 stop
        GTF 16:35
        Portland - Great Falls | Wed, Nov 18 | Alaska Airlines
        US$396 US$984
        60% off
        60% off
        US$984 US$396
      • GTF 05:40
        4h 1m
        1 stop
        PDX 08:41
        Great Falls - Portland | Sat, Oct 17 | Delta Air Lines
        PDX 05:40
        5h 55m
        1 stop
        GTF 12:35
        Portland - Great Falls | Fri, Oct 23 | Delta Air Lines
        US$427 US$984
        56% off
        56% off
        US$984 US$427
      • GTF 05:40
        4h 1m
        1 stop
        PDX 08:41
        Great Falls - Portland | Thu, Oct 15 | Delta Air Lines
        PDX 09:46
        6h 55m
        1 stop
        GTF 17:41
        Portland - Great Falls | Wed, Oct 21 | Delta Air Lines
        US$430
        56% off
        US$984 US$430
      • GTF 05:40
        4h 1m
        1 stop
        PDX 08:41
        Great Falls - Portland | Mon, Oct 5 | Delta Air Lines
        PDX 05:40
        5h 55m
        1 stop
        GTF 12:35
        Portland - Great Falls | Mon, Oct 12 | Delta Air Lines
        US$507
        48% off
        US$984 US$507
      • GTF 05:40
        4h 1m
        1 stop
        PDX 08:41
        Great Falls - Portland | Thu, Oct 8 | Delta Air Lines
        PDX 09:46
        6h 55m
        1 stop
        GTF 17:41
        Portland - Great Falls | Wed, Oct 14 | Delta Air Lines
        US$545
        45% off
        US$984 US$545
      • GTF 18:21
        6h 19m
        1 stop
        PDX 23:40
        Great Falls - Portland | Fri, Oct 23 | Delta Air Lines
        PDX 05:40
        5h 55m
        1 stop
        GTF 12:35
        Portland - Great Falls | Mon, Oct 26 | Delta Air Lines
        US$571
        42% off
        US$984 US$571
      • GTF 18:21
        6h 19m
        1 stop
        PDX 23:40
        Great Falls - Portland | Tue, Oct 13 | Delta Air Lines
        PDX 09:46
        11h 51m
        1 stop
        GTF 22:37
        Portland - Great Falls | Thu, Oct 15 | Delta Air Lines
        US$588
        40% off
        US$984 US$588
      • GTF 18:27
        15h 23m
        1 stop
        PDX 08:50
        Great Falls - Portland | Mon, Nov 9 | Delta Air Lines
        PDX 05:33
        16h 7m
        1 stop
        GTF 22:40
        Portland - Great Falls | Thu, Nov 12 | Delta Air Lines
        US$642
        35% off
        US$984 US$642
      • GTF 18:18
        6h 26m
        1 stop
        PDX 23:44
        Great Falls - Portland | Tue, Sep 29 | Delta Air Lines
        PDX 17:10
        4h 27m
        1 stop
        GTF 22:37
        Portland - Great Falls | Sat, Oct 3 | Delta Air Lines
        US$669
        32% off
        US$984 US$669
      • GTF 05:40
        3h 57m
        1 stop
        PDX 08:37
        Great Falls - Portland | Fri, Oct 2 | Delta Air Lines
        PDX 17:10
        4h 27m
        1 stop
        GTF 22:37
        Portland - Great Falls | Tue, Oct 6 | Delta Air Lines
        US$673
        32% off
        US$984 US$673
      • GTF 05:40
        3h 57m
        1 stop
        PDX 08:37
        Great Falls - Portland | Wed, Sep 30 | Delta Air Lines
        PDX 05:40
        5h 55m
        1 stop
        GTF 12:35
        Portland - Great Falls | Sun, Oct 4 | Delta Air Lines
        US$698
        28% off
        US$984 US$698
      • GTF 13:00
        17h 25m
        1 stop
        PDX 14:00
        Great Falls - Portland | Sat, Sep 26 | Normal Airline
        PDX 15:00
        6h
        Nonstop
        GTF 16:00
        Portland - Great Falls | Mon, Sep 28 | Normal Airline
        More cheap flights
        More cheap flights
      • GTF 17:15
        5h 41m
        1 stop
        PDX 21:56
        Great Falls - Portland | Wed, Oct 14 | Alaska Airlines
        US$199 US$436
        54% off
        54% off
        US$436 US$199
      • GTF 18:27
        4h 51m
        1 stop
        PDX 22:18
        Great Falls - Portland | Sat, Oct 10 | Delta Air Lines
        US$210 US$436
        52% off
        52% off
        US$436 US$210
      • GTF 18:21
        5h 12m
        1 stop
        PDX 22:33
        Great Falls - Portland | Sat, Sep 26 | Delta Air Lines
        US$210 US$436
        52% off
        52% off
        US$436 US$210
      • GTF 17:15
        6h 47m
        1 stop
        PDX 23:02
        Great Falls - Portland | Sun, Oct 4 | Alaska Airlines
        US$224
        49% off
        US$436 US$224
      • GTF 05:40
        4h 10m
        1 stop
        PDX 08:50
        Great Falls - Portland | Fri, Oct 16 | Delta Air Lines
        US$234
        46% off
        US$436 US$234
      • GTF 18:27
        4h 51m
        1 stop
        PDX 22:18
        Great Falls - Portland | Sat, Oct 17 | Delta Air Lines
        US$234
        46% off
        US$436 US$234
      • GTF 05:40
        4h 10m
        1 stop
        PDX 08:50
        Great Falls - Portland | Mon, Oct 19 | Delta Air Lines
        US$236
        46% off
        US$436 US$236
      • GTF 18:27
        4h 51m
        1 stop
        PDX 22:18
        Great Falls - Portland | Sat, Oct 24 | Delta Air Lines
        US$236
        46% off
        US$436 US$236
      • GTF 05:40
        4h 1m
        1 stop
        PDX 08:41
        Great Falls - Portland | Sun, Sep 27 | Delta Air Lines
        US$252
        42% off
        US$436 US$252
      • GTF 05:40
        4h 10m
        1 stop
        PDX 08:50
        Great Falls - Portland | Thu, Oct 8 | Delta Air Lines
        US$271
        38% off
        US$436 US$271
      • GTF 17:15
        5h 41m
        1 stop
        PDX 21:56
        Great Falls - Portland | Thu, Oct 8 | Alaska Airlines
        US$309
        28% off
        US$436 US$309
      • GTF 17:15
        3h 39m
        1 stop
        PDX 19:54
        Great Falls - Portland | Fri, Oct 9 | Alaska Airlines
        US$309
        28% off
        US$436 US$309
      • GTF 13:00
        17h 25m
        1 stop
        PDX 14:00
        Great Falls - Portland | Sat, Sep 26 | Normal Airline
        More cheap flights
        More cheap flights

Displayed flight fares from Great Falls International Airport to Portland International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Great Falls International Airport to Portland International Airport?

The cheapest airline flying from Great Falls International Airport to Portland International Airport is Alaska Airlines (from US$199) among 3 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From US$199
Delta Air Lines
From US$204
United Airlines
From US$351

Find more flights and airlines

What is the flight schedule from Great Falls International Airport to Portland International Airport?

Check on the flight schedule from Great Falls to Portland to find the flight that matches your travel plan.

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL3862

    Great Falls International Airport

    05:30

    GTF

    1h 38m

    Nonstop

    07:08

    SLC

    S M T W T F S
    Search

  2. DL1203

    Salt Lake City International Airport

    08:05

    SLC

    2h 11m

    Nonstop

    09:16

    PDX

    S M T W T F S

  3. DL3800

    Great Falls International Airport

    18:20

    GTF

    1h 40m

    Nonstop

    20:00

    SLC

    S M T W T F S
    Search

  4. DL1373

    Salt Lake City International Airport

    22:45

    SLC

    2h 6m

    Nonstop

    23:51

    PDX

    S M T W T F S

  5. DL3859

    Great Falls International Airport

    13:10

    GTF

    1h 40m

    Nonstop

    14:50

    SLC

    S M T W T F S
    Search

  6. DL1238

    Salt Lake City International Airport

    17:10

    SLC

    2h 6m

    Nonstop

    18:16

    PDX

    S - - W T - S

  7. DL3862

    Great Falls International Airport

    05:30

    GTF

    1h 38m

    Nonstop

    07:08

    SLC

    S M T W T F S
    Search

  8. DL2874

    Salt Lake City International Airport

    08:00

    SLC

    2h 33m

    Nonstop

    09:33

    SEA

    S M T W T F S

  9. DL3818

    Seattle-Tacoma International Airport

    09:30

    SEA

    1h 10m

    Nonstop

    10:40

    PDX

    S M T W T F S

  10. DL3800

    Great Falls International Airport

    18:20

    GTF

    1h 40m

    Nonstop

    20:00

    SLC

    S M T W T F S
    Search

  11. DL2016

    Salt Lake City International Airport

    20:45

    SLC

    2h 25m

    Nonstop

    22:10

    SEA

    S M T W T F S

  12. DL3910

    Seattle-Tacoma International Airport

    22:50

    SEA

    1h 4m

    Nonstop

    23:54

    PDX

    S M T W T - S

  13. DL3859

    Great Falls International Airport

    13:10

    GTF

    1h 40m

    Nonstop

    14:50

    SLC

    S M T W T F S
    Search

  14. DL2817

    Salt Lake City International Airport

    15:35

    SLC

    2h 18m

    Nonstop

    16:53

    SEA

    S M T W T F S

  15. DL3997

    Seattle-Tacoma International Airport

    19:45

    SEA

    1h 5m

    Nonstop

    20:50

    PDX

    S M T W T F S

  16. UA1246

    Great Falls International Airport

    14:37

    GTF

    2h 3m

    Nonstop

    16:40

    DEN

    S M T W T F S
    Search

  17. UA1770

    Denver International Airport

    20:59

    DEN

    2h 39m

    Nonstop

    22:38

    PDX

    S - T W T - S

  18. UA2107

    Great Falls International Airport

    06:15

    GTF

    2h 1m

    Nonstop

    08:16

    DEN

    S M T W T F S
    Search

  19. UA2455

    Denver International Airport

    13:25

    DEN

    2h 40m

    Nonstop

    15:05

    PDX

    S M T W T F S

  20. UA2107

    Great Falls International Airport

    06:15

    GTF

    2h 1m

    Nonstop

    08:16

    DEN

    S M T W T F S
    Search

  21. UA1337

    Denver International Airport

    15:55

    DEN

    2h 43m

    Nonstop

    17:38

    PDX

    S M T W T F S

  22. DL3800

    Great Falls International Airport

    18:20

    GTF

    1h 40m

    Nonstop

    20:00

    SLC

    S M T W T F S
    Search

  23. DL2998

    Salt Lake City International Airport

    22:45

    SLC

    2h 26m

    Nonstop

    00:11

    SEA

    S - - W T - S

  24. DL3953

    Seattle-Tacoma International Airport

    07:30

    SEA

    1h 13m

    Nonstop

    08:43

    PDX

    S M T W T F S
Find more flights and airlines

About Great Falls International Airport and Portland International Airport

Learn about Great Falls International Airport (GTF) and Portland International Airport (PDX) — including location, terminals, transportation, and travel tips.

Flight distance 885.02 km
Cheapest one-way ticket price US$199
Cheapest return ticket price US$387

FAQs for Great Falls International Airport to Portland International Airport Flights

  • What are the cheapest flights from Great Falls International Airport to Portland International Airport?

    One-way flights from Great Falls International Airport to Portland International Airport currently start from US$199, and round-trip fares start from US$387. The current lowest fare is a Alaska Airlines flight departing on Wed, Oct 14; prices may vary depending on availability.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Great Falls International Airport to Portland International Airport is US$302. Prices may vary depending on the departure date, airline, and availability.
  • Enter Great Falls International Airport and Portland International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Popular Destinations

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.