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Flights from Portland to Boise

Search cheap flights from Portland to Boise in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at MYR 671, and round-trip tickets start at MYR 2,938.

      • PWM 06:03
        8h 51m
        1 stop
        BOI 12:54
        Portland - Boise | Mon, Dec 15 | Delta Air Lines
        BOI 23:35
        21h 8m
        1 stop
        PWM 22:43
        Boise - Portland | Fri, Dec 19 | Delta Air Lines
        MYR 2,938 MYR 10,414
        72% OFF
        72% OFF
        MYR 10,414 MYR 2,938
      • PWM 16:25
        8h 20m
        1 stop
        BOI 22:45
        Portland - Boise | Mon, Dec 15 | United Airlines
        BOI 08:20
        11h 54m
        1 stop
        PWM 22:14
        Boise - Portland | Fri, Dec 19 | United Airlines
        MYR 4,799 MYR 10,414
        54% OFF
        54% OFF
        MYR 10,414 MYR 4,799
      • PWM 09:30
        15h 29m
        1 stop
        BOI 22:59
        Portland - Boise | Wed, Dec 24 | United Airlines
        BOI 12:20
        7h 9m
        1 stop
        PWM 21:29
        Boise - Portland | Mon, Dec 29 | United Airlines
        MYR 5,468 MYR 10,414
        47% OFF
        47% OFF
        MYR 10,414 MYR 5,468
      • PWM 16:10
        8h 49m
        1 stop
        BOI 22:59
        Portland - Boise | Mon, Dec 22 | United Airlines
        BOI 12:20
        7h 9m
        1 stop
        PWM 21:29
        Boise - Portland | Mon, Dec 29 | United Airlines
        MYR 5,853
        44% OFF
        MYR 10,414 MYR 5,853
      • PWM 16:10
        8h 49m
        1 stop
        BOI 22:59
        Portland - Boise | Fri, Dec 19 | United Airlines
        BOI 12:20
        7h 9m
        1 stop
        PWM 21:29
        Boise - Portland | Tue, Dec 23 | United Airlines
        MYR 6,584
        37% OFF
        MYR 10,414 MYR 6,584
      • PWM 16:10
        8h 49m
        1 stop
        BOI 22:59
        Portland - Boise | Tue, Dec 23 | United Airlines
        BOI 12:20
        7h 9m
        1 stop
        PWM 21:29
        Boise - Portland | Sat, Dec 27 | United Airlines
        MYR 7,603
        27% OFF
        MYR 10,414 MYR 7,603
      • PWM 13:00
        17h 25m
        1 stop
        BOI Invalid Date
        Portland - Boise | Sun, Dec 14 | Normal Airline
        BOI 15:00
        6h
        Nonstop
        PWM 16:00
        Boise - Portland | Tue, Dec 16 | Normal Airline
        Find More Flights
        Find More Flights
      • PWM 05:30
        9h
        1 stop
        BOI 12:30
        Portland - Boise | Thu, Jan 22 | Delta Air Lines
        MYR 671 MYR 3,453
        81% OFF
        81% OFF
        MYR 3,453 MYR 671
      • PWM 06:03
        8h 51m
        1 stop
        BOI 12:54
        Portland - Boise | Tue, Dec 16 | Delta Air Lines
        MYR 681 MYR 3,453
        80% OFF
        80% OFF
        MYR 3,453 MYR 681
      • PWM 05:45
        9h
        1 stop
        BOI 12:45
        Portland - Boise | Thu, Jan 1 | Delta Air Lines
        MYR 1,467 MYR 3,453
        57% OFF
        57% OFF
        MYR 3,453 MYR 1,467
      • PWM 05:45
        9h
        1 stop
        BOI 12:45
        Portland - Boise | Wed, Dec 31 | Delta Air Lines
        MYR 1,577
        54% OFF
        MYR 3,453 MYR 1,577
      • PWM 05:45
        9h
        1 stop
        BOI 12:45
        Portland - Boise | Wed, Dec 24 | Delta Air Lines
        MYR 1,948
        44% OFF
        MYR 3,453 MYR 1,948
      • PWM 05:36
        9h 11m
        1 stop
        BOI 12:47
        Portland - Boise | Sat, Dec 20 | Delta Air Lines
        MYR 2,044
        41% OFF
        MYR 3,453 MYR 2,044
      • PWM 05:45
        9h
        1 stop
        BOI 12:45
        Portland - Boise | Mon, Dec 22 | Delta Air Lines
        MYR 2,236
        35% OFF
        MYR 3,453 MYR 2,236
      • PWM 05:45
        9h
        1 stop
        BOI 12:45
        Portland - Boise | Fri, Dec 26 | Delta Air Lines
        MYR 2,359
        32% OFF
        MYR 3,453 MYR 2,359
      • PWM 05:45
        9h
        1 stop
        BOI 12:45
        Portland - Boise | Sun, Dec 28 | Delta Air Lines
        MYR 2,359
        32% OFF
        MYR 3,453 MYR 2,359
      • PWM 16:10
        8h 49m
        1 stop
        BOI 22:59
        Portland - Boise | Thu, Dec 25 | United Airlines
        MYR 2,521
        27% OFF
        MYR 3,453 MYR 2,521
      • PWM 13:00
        17h 25m
        1 stop
        BOI Invalid Date
        Portland - Boise | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

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

Portland to Boise Flight Details

The distance between Portland and Boise is about 3,648.37 km. Based on Trip.com's latest data, travel demand is highest in December. The off-season for travel is September.

Cheapest one-way flight priceMYR 671
Cheapest return ticket priceMYR 2,938
Cheapest monthSeptember
Peak season for travelDecember
Flight distance3,648.37 km

When is the cheapest time to book flights from Portland to Boise?

The cheapest time to fly from Portland to Boise: Jan 18 to Jan 25 — one-way prices start at MYR 670.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Portland to Boise (PWM-BOI)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as MYR 671 on Cheapest nonstop routes (e.g. PWM to BOI on Thu, Jan 22), while Delta Air Lines offers Cheapest nonstop round-trips from MYR 2,938 departing on Mon, Dec 15 and returning on Fri, Dec 19.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Boise is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Portland to Boise, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Jan 22, with one-way flights priced at just MYR 671.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Boise travel is around December.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Portland to Boise is September, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Portland to Boise on December 15, 2025 with Delta Air Lines, with prices starting at MYR 2,937.
  • The time difference between Boise and Portland is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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