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Cheap flights from Dublin to Portland

DUB — PDX
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Dublin to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 September 2025.

Popular in

June

Cheapest in

March

Average price

£612
Highest demand for flights based on searches. 10% potential increase in price (£52 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Best time to book a flight from Dublin to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Dublin with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Portland

What is the cheapest time of day to fly from DUB to PDX?

Find hourly flight availability from Dublin to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Portland as you normally would.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 18 September 2025.
Check out reviews from past customers who have flown with United Airlines from Dublin to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sept 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sept 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Dublin to Portland round-trip?

    Cheapflights users have booked flights from Dublin to Portland round-trip from £354. United Airlines is currently priced 44% below the average price you’ll pay for this route.

  • Can I find deals for flights from Dublin to Portland that include hotel bookings?

    Yes. In addition to deals on Dublin to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Portland.

  • Can I find deals for business class flights from Dublin to Portland?

    Yes. Cheapflights offers flight deals from Dublin to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Portland?

    Currently, January is the cheapest month in which you can book a flight from Dublin to Portland (average of £736). Flying from Dublin to Portland in July is currently the most expensive (average of £1,048). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Cannon Beach
Lincoln City

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Dublin to Portland

Discover the top airline that operate flights from Dublin to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£354Average£633FlexibilityNo cancel feeOn-time69%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to Portland?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Portland from Dublin today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Dublin to Portland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dublin to Portland.

Can Cheapflights find flights from Dublin to Portland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Dublin to Portland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Dublin to Portland become cheaper?

Yes, Cheapflights offers price alerts on Dublin to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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