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£102+ 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 14/7. 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
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Portland

Discover essential information about flights departing from Portland, including flight schedules, destinations, airlines operating at the Portland airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 2 February 2026.

Cheapest airline

Frontier

Good round-trip deal

£1,334 or less

Good one-way deal

£57 or less
On average, Frontier currently has the cheapest one-way flight from Portland (avg. price of £159).
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Price to beat on a round-trip flight from Portland.
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Price to beat on a one-way flight from Portland.
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Find flights from Portland

Enter your travel dates to find the best prices.

Cheapest flights from Portland
Explore the most affordable flight options available from Portland. Find the lowest fares based on data from user searches, with prices last updated on 2 February 2026.

Mon 6/405:40
PDX
-
INV
2 stops25h 20m
British Airways
Thu 16/407:20
INV
-
PDX
1 stop18h 20m
British Airways
Deal found 1/2£364
Tue 31/319:30
PDX
-
INV
1 stop18h 05m
British Airways
Thu 9/407:20
INV
-
PDX
1 stop18h 20m
British Airways
Deal found 31/1£374
Thu 2/415:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Fri 10/414:20
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 2/2£375
Thu 9/415:30
PDX
-
EDI
1 stop13h 50m
Icelandair
Fri 17/414:15
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 2/2£382
Sun 1/313:25
PDX
-
INV
1 stop15h 20m
Delta
Wed 11/313:15
INV
-
PDX
2 stops36h 00m
Delta
Deal found 1/2£383
Sat 25/415:30
PDX
-
EDI
1 stop13h 50m
Icelandair
Fri 8/514:15
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 1/2£391
Tue 14/415:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Wed 22/414:20
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 1/2£397
Mon 27/415:30
PDX
-
EDI
1 stop13h 50m
Icelandair
Fri 8/514:15
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 1/2£404
Fri 17/413:05
PDX
-
INV
1 stop25h 25m
KLM
Wed 29/406:25
INV
-
PDX
2 stops16h 25m
KLM
Deal found 31/1£414
Tue 3/307:15
PDX
-
INV
2 stops21h 30m
Delta
Tue 10/313:15
INV
-
PDX
1 stop30h 10m
Delta
Deal found 1/2£417
Tue 10/315:45
PDX
-
INV
2 stops16h 30m
Multiple Airlines
Sat 14/314:45
INV
-
PDX
2 stops34h 15m
Multiple Airlines
Deal found 1/2£421
Tue 7/415:30
PDX
-
LHR
1 stop12h 25m
Icelandair
Fri 24/413:05
LHR
-
PDX
1 stop12h 55m
Icelandair
Deal found 31/1£438

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 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 31/3

12:04-14:25

2 stops18h 21m

Inverness

Thu 9/4

07:20-17:40

1 stop18h 20m

£364

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 6/4

05:40-15:00

2 stops25h 20m

Inverness

Tue 21/4

11:20-17:40

1 stop14h 20m

£364

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 6/4

05:40-15:00

2 stops25h 20m

Inverness

Thu 16/4

07:20-17:40

1 stop18h 20m

£364

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Thu 2/4

15:30-13:25

1 stop13h 55m

Glasgow Intl

Fri 10/4

14:20-18:00

1 stop11h 40m

£375

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 1/3

13:25-12:45

1 stop15h 20m

Inverness

Wed 11/3

13:15-18:15

2 stops36h 00m

£383

PortlandInverness

PDX - INV

PDXINV

Portland

Fri 17/4

13:05-22:30

1 stop25h 25m

Inverness

Wed 29/4

06:25-14:50

2 stops16h 25m

£414

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 10/3

15:45-15:15

2 stops16h 30m

Inverness

Sat 14/3

14:45-18:00

2 stops34h 15m

£421

PortlandLondon

PDX - LTN

PDXLTN

Portland

Tue 17/3

15:45-21:05

2 stops22h 20m

London Luton

Tue 24/3

21:50-18:00

2 stops27h 10m

£439

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sun 1/3

17:45-14:35

1 stop12h 50m

Glasgow Intl

Sun 8/3

05:55-15:55

1 stop18h 00m

£446

PortlandManchester

PDX - MAN

PDXMAN

Portland

Mon 2/3

15:50-23:20

2 stops23h 30m

Manchester

Mon 9/3

06:25-21:10

2 stops21h 45m

£450

Flights are sorted by cheapest return flights first.

Deals found on 1/2

Showing 1-10 of 60 results
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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 30 January 2026.

Booking 86 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 £378). Flying from Portland in June will prove the most costly (average of £601). 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, Iberia, Icelandair. These airlines fly to the following popular destinations: London.

British Airways
British Airways
From £376
Alaska Airlines
Alaska Airlines
From £57
Iberia
Iberia
From £420
Frontier
Frontier
From £62

What are popular destinations to fly to from Portland?

If you’re flying from Portland, these routes are more frequently taken by airlines Seattle (342 flights per day), Los Angeles (328 flights per day) and San Francisco (308 flights per day).

London
London
From £1,333
Anchorage
Anchorage
From £179
San Francisco
San Francisco
From £43

What is the cheapest place to fly to from Portland?

The cheapest city to fly to from Portland is San Francisco, with prices starting at £43. Explore other affordable destinations below.

San Francisco
San Francisco
From £43
Anchorage
Anchorage
From £179
London
London
From £1,333

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, Iberia, andBritish 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
7.1
Good
606 reviews
Check prices

Crew

8.1

Boarding

7.2

Entertainment

7.0

Overall

7.1

Comfort

7.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
Icelandair
7.1
Good
606 reviews
Icelandair
7.1
Good
606 reviews
Check prices

Crew

8.1

Boarding

7.2

Entertainment

7.0

Overall

7.1

Comfort

7.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
Iberia
7.0
Good
3,101 reviews
Icelandair
7.1
Good
606 reviews
Check prices

Crew

8.1

Boarding

7.2

Entertainment

7.0

Overall

7.1

Comfort

7.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
British Airways
6.7
Okay
7,711 reviews
Icelandair
7.1
Good
606 reviews
Check prices

Crew

8.1

Boarding

7.2

Entertainment

7.0

Overall

7.1

Comfort

7.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.

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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 February 2026.

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

    This month, the top selected destinations from Portland are Austin, Chicago, Atlanta. Throughout the year, Boston, Chicago, Atlanta 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 £43 to San Francisco (prices may vary depending on the airline and departure time). On average, users have booked flights for £651 to fly from Portland.

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

    Over the past few days, we've found that Alaska Airlines, Frontier, and British Airways have the cheapest prices from Portland. Alaska Airlines flights from Portland to Newark (£57), Frontier flights from Portland to San Francisco (£62), and British Airways flights from Portland to London Heathrow (£376).

  • 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 £620
    Portland to London Heathrow Airport from £1,351
    Portland to Seattle from £1,655
    Portland to Vancouver Intl Airport from £1,667

  • 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 £392 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 £371 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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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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