What is the difference between the most popular and the most frequent airline at Portland?

Aer Lingus operates the most flights from Ireland to Portland at 0 per week, while United Airlines is the airline most often selected by KAYAK users searching for flights from Ireland to Portland. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

How do I know if a flight to Portland is a good deal?

A good deal on a flight to Portland is around €750 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Which airlines should I consider for flights to Portland?

United Airlines is the most popular airline for KAYAK users flying to Portland and has the best on-time record at the destination's main airport.

What is the cheapest flight to Portland?

Dublin to Portland is the cheapest route at €672 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Portland?

On average, a return flight from Ireland to Portland costs €1,059, based on KAYAK data over the past 12 months. Return fares from Dublin average €1,059.

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

Afternoon flights to Portland are the cheapest at €748 return on average. Morning flights are the most expensive at €1,058.

What is a good deal for flights to Portland?

Flights under €750 are considered a good deal. 25% of KAYAK users found return flights to Portland at or below these prices, with the lowest fares from: •Dublin €750.

What are the most popular airlines flying to Portland?

United Airlines is the only airline flying to Portland on KAYAK.

€417 CHEAP FLIGHTS to Portland in 2026/27

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Cheapest return flight

€672

Typical prices: €750-€1,081

United Airlines

Wed 21/11Wed 28/11

DUB - PWM • 2 stops

Cheapest one-way flight

€417

Typical prices: €316-€486

Delta

Fri 14/12

DUB - PWM • 2 stops

Top airlines

United Airlines

Best reviews • 7.3 score

Airline reviews

When to travel

June

Cheapest • 42% price drop

October

Most popular

Good to know

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We hope you enjoy your trip to Portland!

Flight Deals

Cheap Flights to Portland

Discover the best prices for you by selecting your travel dates on KAYAK.

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One-way

Last minute

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Recent return flight deals to Portland

Sat, 21 Nov - Sat, 28 Nov

09:00 - 09:00DUB Dublin-PWM Portland

29h 00m2 stops Toronto Pearson Intl Newark

06:00 - 08:10PWM Portland-DUB Dublin

21h 10m2 stops Newark Chicago O'Hare Intl

€672United Airlines

Sun, 6 Dec - Sun, 13 Dec

09:00 - 09:05DUB Dublin-PWM Portland

29h 05m2 stops Toronto Pearson Intl Newark

09:51 - 08:10PWM Portland-DUB Dublin

17h 19m1 stop Chicago O'Hare Intl

€674United Airlines

Sat, 21 Nov - Sat, 28 Nov

13:35 - 23:21DUB Dublin-PWM Portland

14h 46m1 stop Newark

08:45 - 08:10PWM Portland-DUB Dublin

18h 25m1 stop Chicago O'Hare Intl

€675United Airlines

Sun, 6 Dec - Sun, 13 Dec

12:05 - 19:12DUB Dublin-PWM Portland

12h 07m1 stop Washington, D.C. Dulles Intl

09:12 - 09:55PWM Portland-DUB Dublin

19h 43m1 stop Newark

€676United Airlines

Sun, 6 Dec - Sun, 13 Dec

08:45 - 23:24DUB Dublin-PWM Portland

19h 39m3 stops London Heathrow Toronto Pearson Intl Newark

09:51 - 07:10PWM Portland-DUB Dublin

16h 19m2 stops Chicago O'Hare Intl Toronto Pearson Intl

€859Multiple Airlines

Sat, 21 Nov - Sat, 28 Nov

09:00 - 23:21DUB Dublin-PWM Portland

19h 21m2 stops Toronto Pearson Intl Newark

08:49 - 07:10PWM Portland-DUB Dublin

17h 21m3 stops Newark Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

€967Multiple Airlines

Sun, 6 Dec - Sun, 13 Dec

08:45 - 23:24DUB Dublin-PWM Portland

19h 39m3 stops London Heathrow Toronto Pearson Intl Newark

09:12 - 07:10PWM Portland-DUB Dublin

16h 58m3 stops Newark Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

€1,063Air Canada

Sat, 21 Nov - Sat, 28 Nov

12:05 - 09:00DUB Dublin-PWM Portland

25h 55m3 stops London Heathrow Toronto Pearson Intl Newark

08:49 - 07:10PWM Portland-DUB Dublin

17h 21m3 stops Newark Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

€1,138Air Canada

Booking Insights

Price, demand, and travel trends for flights to Portland

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What is the cheapest flight to Portland?: Dublin to Portland is the cheapest route at €672 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.
How much is a flight to Portland? Average and cheapest price for all return flights to Portland from each origin found by users searching on KAYAK in the last 12 months.: On average, a return flight from Ireland to Portland costs €1,059, based on KAYAK data over the past 12 months. Return fares from Dublin average €1,059.
What is the cheapest time of day to fly to Portland? Average price for all return flights depending on time of departure, seen by users on KAYAK in the last 12 months.: Afternoon flights to Portland are the cheapest at €748 return on average. Morning flights are the most expensive at €1,058.
What is a good deal for flights to Portland?: Flights under €750 are considered a good deal. 25% of KAYAK users found return flights to Portland at or below these prices, with the lowest fares from:
•Dublin €750.

Find deals

Low season	January
High season	October
Cheapest flight	€417

Beat the crowds with an average 71% drop in traveller numbers.

The most popular month to fly with an average 17% increase in traveller numbers.

One-way flight from Dublin to Portland

When to book flights to Portland

Are your dates flexible? Find out the best times to travel to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Portland based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How do I know if a flight to Portland is a good deal?
A good deal on a flight to Portland is around €750 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.
What is the difference between the most popular and the most frequent airline at Portland?
Aer Lingus operates the most flights from Ireland to Portland at 0 per week, while United Airlines is the airline most often selected by KAYAK users searching for flights from Ireland to Portland. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.
Which airlines should I consider for flights to Portland?
United Airlines is the most popular airline for KAYAK users flying to Portland and has the best on-time record at the destination's main airport.

For flights to Portland, a good return fare is around €750. If you find a fare below that, you're getting a strong deal.
If your travel dates are flexible, consider flying to Portland in June. Return fares historically average €612, making June the cheapest month to travel based on KAYAK data from the last 12 months.
Before you book:

• Check the route's typical price range so you can spot a deal.
• Confirm baggage fees and seat selection costs on budget carriers.
• Verify whether you need any travel documents beyond an ID.
• Pick a departure airport, since your nearest may not be the cheapest origin.
Shift your departure to midday to save up to €311 on a return flight. Midday flights to Portland average €748 compared to €1,058 for morning flights.

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€417 Find Cheap Flights to Portland – Compare and Save

Everything you should know

Cheap Flights to Portland

Recent return flight deals to Portland

Recent one-way flight deals to Portland

Recent last minute flight deals to Portland

All return flight deals to Portland

Price, demand, and travel trends for flights to Portland

What is the cheapest flight to Portland?

How much is a flight to Portland?

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

What is a good deal for flights to Portland?

What are the most popular airlines flying to Portland?

Key details for flights to Portland

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Cheapest flight

When to book flights to Portland

Your questions about flights to Portland, answered

Your guide to booking Portland flights

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Complete your trip to Portland with a hotel stay or car hire

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