Cheap Flights from Dublin to Portland from $538

Frequently Asked Questions

• What are the cheapest flights from Dublin to Portland (DUB-PDX)?

  Based on Trip.com data, WestJet offers one-way fares as low as $538 on Cheapest nonstop routes (e.g. DUB to PDX on Wed, Aug 26), while WestJet offers Cheapest nonstop round-trips from $762 departing on Wed, Sep 23 and returning on Thu, Oct 1.

• Which airlines offer direct flights from Dublin to Portland?

  At the moment, you can catch a nonstop flight from Dublin to Portland with the following airlines, including: WestJet Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Dublin 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 Dublin 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.

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

  To find best deals on flights from Dublin to Portland, 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 Wed, Aug 26, with one-way flights priced at just $538.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is WestJet.
  · 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 July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Dublin (DUB) to Portland (PDX) the cheapest?

  The cheapest months to fly from Dublin to Portland is September, when demand for travel is lower.

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

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Dublin to Portland on August 20, 2026 with Jetblue Airways, with prices starting at $446.

• Which airports can I fly to for Portland from Dublin?

  You can land at any one of the following hubs in Portland, with Dublin Airport to Portland International Airport (DUB-PDX) is by far the most common option on this route: Portland International Airport (PDX) Hillsboro Airport (HIO).

• Is there any time difference between Dublin and Portland?

  The time difference between Portland and Dublin is 8h.

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

  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.

• What is the average cost of a one-way flight from Dublin to Portland?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Dublin to Portland is $1,194. Fares vary by travel date, airline and availability.

• How do I book flights from Dublin to Portland on Trip.com?

  Enter Dublin and Portland, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.