Question 1

Why should I use momondo to find a flight deal to Portland?

Accepted Answer

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland.

Question 2

Can I find flights to Portland with flexible booking policies on momondo?

Accepted Answer

Flights to Portland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

Question 3

How can momondo help me find flights to Portland?

Accepted Answer

momondo helps you find the best flight to Portland by providing filters to narrow your choice of flights to those matching your criteria. You can select fights based on numerous factors such as price, departure and landing times, airport and airline.

Question 4

I’m not ready to book a flight to Portland right now. Can momondo alert me if prices change?

Accepted Answer

Of course. momondo tracks the price of Portland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

Question 5

How far in advance should I book a flight to Portland?

Accepted Answer

The ideal time to book your flight to Portland is 53 days in advance, when prices tend to average £647. Keep in mind that you might be able to find cheaper flights to Portland at any time. In fact, our users found flights for as low as £469 in the past 72 hours.

Question 6

Which airlines fly to Portland?

Accepted Answer

For flights from United Kingdom to Portland, most momondo users will book with popular airlines such as British Airways, Virgin Atlantic, Icelandair and Finnair. Depending on what airport you fly from, you may have other airlines to choose from.

Question 7

Delta Flights to Portland

Accepted Answer

There are 39 Delta flights to Portland in a normal week. The most common departure point is Seattle/Tacoma Intl and the best Delta ticket price seen on momondo is £682 (last 72 hours, from London Heathrow, to Portland). Delta has a score of 7.9 from 8,009 user reviews on momondo.

Question 8

KLM Flights to Portland

Accepted Answer

£523 is the best return KLM deal to Portland found on momondo in the last few days. The deal departed from Birmingham. KLM has 18 flights to Portland most weeks, with prices varying by availability. 1,432 momondo users have reviewed KLM, scoring the airline a 7.7/10 on average.

Question 9

When did momondo last update prices for flights to Portland Airport?

Accepted Answer

Prices for flights to Portland Airport are updated daily.

Question 10

How many operators does momondo search for flights to Portland Airport?

Accepted Answer

The number of operators available for flights to Portland Airport is 15 as of December 2025.

Question 11

How old do you have to be to fly to Portland Airport?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Portland Airport.

Question 12

What documentation or ID do you need to fly to Portland Airport?

Accepted Answer

The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Question 13

How far in advance should I book a flight to Portland?

Accepted Answer

You are more likely to see cheaper flights to Portland from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around £654 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from United Kingdom for as low as £591 on momondo.

Question 14

What is the cheapest time of day to depart on your flight to Portland?

Accepted Answer

Flying to Portland from United Kingdom in the morning is the least expensive time of day to depart. momondo users have found prices as low as £614 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around £723. Of course, these prices can vary depending on the time of year and what airport you fly to.

Question 15

How long does it take to fly to Portland?

Accepted Answer

Flight times vary depending on what airport in United Kingdom you fly out of and what airport in Portland you fly into. For example, flying from London Heathrow to Portland takes 10h on average. On the other hand, flying from Manchester to Portland takes 13h 35m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Question 16

What is the cheapest day to depart on your flight to Portland?

Accepted Answer

The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as £668. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around £775.

Question 17

What is the cheapest month to fly to Portland?

Accepted Answer

The cheapest month to fly to Portland from United Kingdom is in September. Flight prices, which tend to average around £550, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until March to fly from United Kingdom, when ticket prices are also cheap, with an average price of £563.

CHEAPEST MONTH TO FLY TO PORTLAND FROM LONDON HEATHROW AIRPORT	November	17% cheaper	Flying from London Heathrow Airport to Portland costs on average just £545 in November
MOST EXPENSIVE MONTH TO FLY TO PORTLAND FROM LONDON HEATHROW AIRPORT	July	28% more expensive	It costs about £839 for flights to Portland from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO PORTLAND FROM LONDON HEATHROW AIRPORT	July	184% more users visited	More momondo users searched in flights to Portland from London Heathrow Airport in July than any other month

Best One-Way Price	£287
Best Round-Trip Price	£528
Fastest flight time	15h 25m
Popular in	July

£287 Cheap flights to Portland

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Portland departing on 5/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United Kingdom to Portland

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Recent direct flight deals from the United Kingdom to Portland

momondo Fare Finder

Use the filters below to find and compare flights to Portland that are best for you.

See travel insights to Portland from

Portland flights insights and trends

What is the cheapest month to fly to Portland?

What is the absolute cheapest flight to Portland?

See prices from:

What is the cheapest day to depart on your flight to Portland?

What is the cheapest time of day to depart on your flight to Portland?

How far in advance should I book a flight to Portland?

How long does it take to fly to Portland?

Cheapest flights to Portland

Find the cheapest flights to Portland from your nearest city or airport

Cheap Portland flight deals and tips

Summary info about Portland flight prices, duration and airlines

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to Portland

How far in advance should I book a flight to Portland?

When did momondo last update prices for flights to Portland Airport?

How many operators does momondo search for flights to Portland Airport?

How old do you have to be to fly to Portland Airport?

What documentation or ID do you need to fly to Portland Airport?

Travelling to a place near Portland?

Why use momondo?

Why should I use momondo to find a flight deal to Portland?

Can I find flights to Portland with flexible booking policies on momondo?

How can momondo help me find flights to Portland?

I’m not ready to book a flight to Portland right now. Can momondo alert me if prices change?

An easier way to manage your Portland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portland

Popular Flights to Portland

Popular routes according to searches in the past day on momondo