Find cheap flights from Ireland to Portland

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KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Portland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Portland, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Ireland to Portland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Ireland to Portland

KAYAK's recommended return flight deals from the most popular airlines that fly from Ireland to Portland.
Discover the best prices for you by selecting your travel dates on KAYAK.
Multiple Airlines Logo
LHR-PDX
4896 mimulti-stop
Multiple Airlines Logo
PDX-LHR
4896 mimulti-stop
Multiple Airlines
Find Deal
Multiple Airlines Logo
LGW-PDX
4921 mimulti-stop
Multiple Airlines Logo
PDX-LGW
4921 mimulti-stop
Multiple Airlines
Find Deal
Useful Info

KAYAK's insights & trends for flights to Portland

Get data-powered insights and trends into flights to Portland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Portland?

The average price of all round-trip flights to Portland clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Portland is Tuesday where round-trip tickets can be as cheap as £510. On the other hand, the most expensive day to fly is Monday, where round-trip prices are £696 on average.

What is the cheapest month to fly to Portland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Portland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Portland is March, where tickets cost £462 on average for return flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Ireland is £772 and £682 respectively. For one-way flights, the best month to travel is March with an average price of £462.

What is the cheapest time of day to fly to Portland?

The average price for all round-trip flights to Portland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Portland is generally in the morning, when round-trip flights cost £786 on average. The most expensive time of day to fly to Portland is generally in the morning, which is peak travel time and where the average cost of a ticket is £786.

Good to know - Cheap tickets from Ireland to Portland

Low season

January

High season

September
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.

FAQs - booking Portland flights

  • How far is Portland Airport from central Portland?

    There are 6 miles between Portland city centre and Portland Airport.

  • What is the name of Portland’s airport?

    Portland is served by Portland Airport, also commonly referred to as Portland or Portland Intl. The airport code is PDX.

  • How does KAYAK find such low prices on flights to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Portland are there each week?

    Each week there are around 7 direct flights from within Ireland to Portland. The most common day for departures is Monday, with 14% of flights taking off on this day.

Top tips for finding cheap flights to Portland

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portland flight deals.

Top airline flying from Ireland to Portland

 
See real verified KAYAK customer reviews for airlines flying to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Portland. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8696 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

2.0 MediocreBrant, Apr 2025YHZ - EWR
Read more United Airlines reviews

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

A bit rush for transit. Food and entertainment are not available

So far so good but food and entertainment are not available for this flight

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Salem
Vancouver
Cannon Beach
The Dalles
Kelso
Tigard
Camas
Pacific City
Long Beach
Longview
Oregon City

Everything you need to know for your flight to Portland

Information on the airport you'll fly into in Portland

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.