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£111+ Cheap flights from Portland

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PDX — LHR
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags

Find flights from Portland within your budget

 
Find flights departing from Portland that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 2 April 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandLondon

PDX - LTN

PDXLTN

Portland

Mon 27/4

15:30-22:50

2 stops23h 20m

London Luton

Mon 4/5

08:15-18:00

2 stops17h 45m

£640

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sat 2/5

22:55-06:25

1 stop23h 30m

London Heathrow

Tue 12/5

06:30-11:10

1 stop12h 40m

£664

PortlandInverness

PDX - INV

PDXINV

Portland

Fri 17/4

13:05-22:30

1 stop25h 25m

Inverness

Wed 29/4

13:15-11:10

1 stop29h 55m

£664

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 4/5

13:32-15:35

1 stop18h 03m

London Heathrow

Wed 20/5

06:30-11:10

1 stop12h 40m

£665
Fastest return journey

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 4/5

13:55-13:05

1 stop15h 10m

London Heathrow

Thu 14/5

06:30-11:10

1 stop12h 40m

£665

PortlandInverness

PDX - INV

PDXINV

Portland

Sat 19/9

19:30-21:35

1 stop18h 05m

Inverness

Mon 28/9

11:10-17:40

1 stop14h 30m

£667

PortlandInverness

PDX - INV

PDXINV

Portland

Sat 19/9

07:10-10:25

2 stops19h 15m

Inverness

Mon 28/9

06:25-15:06

2 stops16h 41m

£668

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 17/8

19:30-19:40

1 stop16h 10m

Glasgow Intl

Thu 20/8

09:40-23:22

2 stops21h 42m

£674

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 25/8

13:20-16:45

2 stops19h 25m

Glasgow Intl

Wed 7/10

16:50-19:01

2 stops34h 11m

£679

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 31/8

19:30-16:10

1 stop12h 40m

Glasgow Intl

Tue 8/9

17:10-22:50

2 stops37h 40m

£687

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Portland

Have a flexible travel schedule? Discover the best time to fly from Portland 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.

Travel insights for flights from Portland

Get recent, data-driven insights about flights from Portland including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Portland?

Use this chart to determine the optimal time to book a return flight from Portland to Heathrow. Price data was last updated on 13 March 2026.

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from Portland (average of £389). Flying from Portland in June will prove the most costly (average of £641). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Portland?

Many airlines operate round-trip flights from Portland: British Airways, Icelandair. These airlines fly to the following popular destinations: London.

British Airways
British Airways
From £395
Alaska Airlines
Alaska Airlines
From £122
Frontier
Frontier
From £64
Virgin Atlantic
Virgin Atlantic
From £392

What are popular destinations to fly to from Portland?

If you’re flying from Portland, these routes are more frequently taken by airlines Los Angeles (363 flights per day), Seattle (349 flights per day) and San Francisco (289 flights per day).

London
London
From £638
San Francisco
San Francisco
From £161
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £41
Anchorage
Anchorage
From £184

What is the cheapest place to fly to from Portland?

The cheapest city to fly to from Portland is Phoenix Sky Harbor Intl, with prices starting at £41. Explore other affordable destinations below.

Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £41
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From £89
San Francisco
San Francisco
From £161

Airline reviews for flights from Portland

Get insights into the airlines that provide service from Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Portland. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Get a feel of what it's like to fly with Icelandair and British Airways from Portland by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
630 reviews
Check prices

Comfort

6.9

Overall

7.0

Entertainment

6.9

Boarding

7.2

Crew

8.0

Food

6.1

Reviews

1 / 20
2.0
Mediocre

Bruce,Mar 2026

BCN - KEF

The airline is charging everything. Drink, meal and ear plug for watching entertainment. This was 4 hours 40 minutes flight.
Icelandair
7.0
Good
630 reviews
Icelandair
7.0
Good
630 reviews
Check prices

Comfort

6.9

Overall

7.0

Entertainment

6.9

Boarding

7.2

Crew

8.0

Food

6.1

Reviews

1 / 20
2.0
Mediocre

Bruce,Mar 2026

BCN - KEF

The airline is charging everything. Drink, meal and ear plug for watching entertainment. This was 4 hours 40 minutes flight.
British Airways
6.7
Okay
7,841 reviews
Icelandair
7.0
Good
630 reviews
Check prices

Comfort

6.9

Overall

7.0

Entertainment

6.9

Boarding

7.2

Crew

8.0

Food

6.1

Reviews

1 / 20
2.0
Mediocre

Bruce,Mar 2026

BCN - KEF

The airline is charging everything. Drink, meal and ear plug for watching entertainment. This was 4 hours 40 minutes flight.

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Related info for your journey

Access useful and relevant information related to your journey from Portland. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 2 April 2026.

  • What are the most popular destinations to fly to from Portland?

    This month, the top selected destinations from Portland are Chicago, Cancún, Boston. Throughout the year, Boston, Chicago, Cancún are some of the top choices made by users flying from Portland.

  • What is the cheapest flight from Portland to anywhere?

    Users have flown out of Portland for as low as £41 to Phoenix Sky Harbor Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £587 to fly from Portland.

  • What are the cheapest airlines flying from Portland to anywhere?

    Over the past few days, we've found that Frontier, Alaska Airlines, and Virgin Atlantic have the cheapest prices from Portland. Frontier flights from Portland to San Francisco (£64), Alaska Airlines flights from Portland to Los Angeles Los Angeles (£122), and Virgin Atlantic flights from Portland to London (£392).

  • What is the cheapest premium economy flight from Portland?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from Portland.
    Portland to Salt Lake City from £638
    Portland to Los Angeles from £1,389
    Portland to London Heathrow Airport from £1,455
    Portland to Dallas/Fort Worth Airport from £1,484

  • What is the cheapest first class flight from Portland?

    If you’re looking for a cheap first-class flight from Portland, consider Santa Barbara. Prices start at £404 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Portland?

    At the present moment the cheapest month to fly from Portland is currently December; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Portland?

    Check out the cheapest flights from Portland to embark to:
    Travel from Portland to London from £544 round trip

  • How does Cheapflights help users find flights from Portland?

    When you search for this flight from Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

  • Why should you use Cheapflights to find cheap flight tickets from 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 Portland.

  • Can Cheapflights find flights from Portland with no change fees?

    Certainly. Search results for flights from Portland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

    Yes, Cheapflights offers price alerts on flights from Portland so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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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 Portland?

When you search for this flight from Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

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

Can Cheapflights find flights from Portland with no change fees?

Certainly. Search results for flights from Portland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on flights from Portland so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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