Cheap flight from Portland to Idaho Falls from €791

Frequently Asked Questions

• What are the cheapest flights from Portland to Idaho Falls (PWM-IDA)?

  Based on Trip.com data, Delta Air Lines offers one-way fares as low as €306 on Cheapest nonstop routes (e.g. PWM to IDA on Tue, Nov 25), while United Airlines offers Cheapest nonstop round-trips from €791 departing on Wed, Oct 8 and returning on Tue, Oct 14.

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

  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 Idaho Falls 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.

• How can I find the best deals on flights from Portland to Idaho Falls?

  To find best deals on flights from Portland to Idaho Falls, 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 Tue, Nov 25, with one-way flights priced at just €306.
  · 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 Idaho Falls travel is around February.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Portland (PWM) to Idaho Falls (IDA) the cheapest?

  The cheapest months to fly from Portland to Idaho Falls is March, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Portland to Idaho Falls on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Portland to Idaho Falls on October 8, 2025 with United Airlines, with prices starting at €790.

• Is there any time difference between Portland and Idaho Falls?

  The time difference between Idaho Falls and Portland is 2h.

• How do I change or cancel my ticket from Portland to Idaho Falls?

  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.