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Flights from Williston to Portland

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

      • XWA 07:15
        8h 22m
        1 stop
        PDX 13:37
        Williston - Portland | Wed, Dec 10 | United Airlines
        PDX 16:02
        5h 56m
        1 stop
        XWA 23:58
        Portland - Williston | Mon, Dec 15 | United Airlines
        US$623 US$739
        16% OFF
        16% OFF
        US$739 US$623
      • XWA 18:22
        6h 36m
        1 stop
        PDX 22:58
        Williston - Portland | Sat, Dec 20 | United Airlines
        PDX 05:00
        6h 21m
        1 stop
        XWA 13:21
        Portland - Williston | Sun, Dec 21 | United Airlines
        US$657 US$739
        11% OFF
        11% OFF
        US$739 US$657
      • ISN 13:00
        17h 25m
        1 stop
        PDX Invalid Date
        Williston - Portland | Fri, Dec 12 | Normal Airline
        PDX 15:00
        6h
        Nonstop
        ISN 16:00
        Portland - Williston | Sun, Dec 14 | Normal Airline
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Displayed flight fares from Williston to Portland are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Williston to Portland Flight Details

The distance between Williston and Portland is about 1,465.04 km. Based on Trip.com's latest data, travel demand is highest in February. The off-season for travel is August.

Cheapest return ticket priceUS$623
Cheapest monthAugust
Peak season for travelFebruary
Flight distance1,465.04 km

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

The cheapest time to fly from Williston to Portland: Dec 14 to Dec 21 — one-way prices start at US$657.

Cheapest flights
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  • 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

  • When is the best time to book flights from Williston to Portland?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Williston to Portland 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 Williston to Portland, you can use various tools on Trip.com:
    · 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 Portland travel is around February.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Williston to Portland is August, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Williston to Portland on December 10, 2025 with United Airlines, with prices starting at US$622.
  • The time difference between Portland and Williston 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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