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£43+ Cheap flights from Portland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/5. 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
9 Mar — 16 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 7 February 2026.

Cheapest airline

Frontier

Good round-trip deal

£1,345 or less

Good one-way deal

£58 or less
On average, Frontier currently has the cheapest one-way flight from Portland (avg. price of £160).
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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 7 February 2026.

Tue 3/307:05
PDX
-
SFO
Nonstop2h 03m
Alaska Airlines
Tue 3/311:34
SFO
-
PDX
1 stop4h 14m
Alaska Airlines
Deal found 4/2£111
Sat 18/417:59
PDX
-
SFO
1 stop5h 36m
Delta
Wed 22/410:32
SFO
-
PDX
1 stop6h 38m
Delta
Deal found 5/2£112
Tue 17/307:05
PDX
-
SFO
Nonstop2h 03m
Alaska Airlines
Tue 17/311:34
SFO
-
PDX
1 stop6h 31m
Alaska Airlines
Deal found 5/2£115
Sat 18/407:24
PDX
-
SFO
Nonstop1h 58m
Alaska Airlines
Wed 22/407:40
SFO
-
PDX
Nonstop1h 50m
Alaska Airlines
Deal found 6/2£116
Sat 11/407:15
PDX
-
SFO
Nonstop1h 47m
United Airlines
Mon 13/418:49
SFO
-
PDX
Nonstop1h 59m
United Airlines
Deal found 4/2£117
Sun 8/305:30
PDX
-
SFO
Nonstop2h 05m
United Airlines
Wed 11/310:40
SFO
-
PDX
Nonstop1h 53m
United Airlines
Deal found 5/2£119
Sat 7/307:05
PDX
-
SFO
Nonstop2h 03m
Alaska Airlines
Thu 12/318:40
SFO
-
PDX
Nonstop1h 54m
Alaska Airlines
Deal found 7/2£121
Sat 7/314:05
PDX
-
SFO
1 stop9h 10m
Southwest
Wed 11/313:25
SFO
-
PDX
1 stop8h 45m
Southwest
Deal found 5/2£123
Sat 18/407:10
PDX
-
SFO
2 stops10h 15m
Southwest
Tue 21/414:50
SFO
-
PDX
1 stop8h 10m
Southwest
Deal found 5/2£125
Mon 9/314:47
PDX
-
SFO
Nonstop1h 57m
Alaska Airlines
Thu 12/318:40
SFO
-
PDX
Nonstop1h 54m
Alaska Airlines
Deal found 7/2£126
Sun 15/307:05
PDX
-
SFO
Nonstop2h 03m
Alaska Airlines
Tue 17/316:21
SFO
-
PDX
1 stop6h 20m
Alaska Airlines
Deal found 4/2£127
Thu 9/415:30
PDX
-
EDI
1 stop13h 50m
Icelandair
Fri 17/414:15
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 5/2£374

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

Fly to

Heathrow

Route

Depart

Return

Price

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 21/4

19:32-23:37

1 stop4h 05m

San Francisco

Sat 25/4

10:32-17:01

1 stop6h 29m

£112

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 8/4

13:39-15:30

Nonstop1h 51m

San Francisco

Sat 11/4

14:25-16:33

Nonstop2h 08m

£116

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 17/3

14:47-16:44

Nonstop1h 57m

San Francisco

Tue 17/3

18:27-23:44

1 stop5h 17m

£119

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Mon 16/3

21:48-23:44

Nonstop1h 56m

San Francisco

Wed 18/3

08:00-09:50

Nonstop1h 50m

£119

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sun 15/3

07:05-09:08

Nonstop2h 03m

San Francisco

Tue 17/3

07:50-09:42

Nonstop1h 52m

£119

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 12/3

07:30-09:25

Nonstop1h 55m

San Francisco

Sat 14/3

16:54-18:47

Nonstop1h 53m

£121

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 3/3

08:30-14:02

1 stop5h 32m

San Francisco

Wed 4/3

11:34-15:48

1 stop4h 14m

£123

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 7/3

07:05-09:08

Nonstop2h 03m

San Francisco

Wed 11/3

06:30-10:46

1 stop4h 16m

£123

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

£377

PortlandLondon

PDX - LTN

PDXLTN

Portland

Tue 24/3

15:45-20:05

2 stops21h 20m

London Luton

Wed 1/4

06:15-18:00

2 stops19h 45m

£445

Flights are sorted by cheapest return flights first.

Deals found on 3/2

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 £381). Flying from Portland in June will prove the most costly (average of £606). 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 £379
Alaska Airlines
Alaska Airlines
From £58
Iberia
Iberia
From £424
Frontier
Frontier
From £63

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 (255 flights per day), Seattle (253 flights per day) and San Francisco (252 flights per day).

London
London
From £1,344
San Francisco
San Francisco
From £43
Anchorage
Anchorage
From £180

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 £180
London
London
From £1,344

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

Boarding

7.2

Entertainment

7.0

Crew

8.1

Food

6.2

Comfort

7.0

Overall

7.1

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

Boarding

7.2

Entertainment

7.0

Crew

8.1

Food

6.2

Comfort

7.0

Overall

7.1

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
3,106 reviews
Icelandair
7.1
Good
606 reviews
Check prices

Boarding

7.2

Entertainment

7.0

Crew

8.1

Food

6.2

Comfort

7.0

Overall

7.1

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
7,719 reviews
Icelandair
7.1
Good
606 reviews
Check prices

Boarding

7.2

Entertainment

7.0

Crew

8.1

Food

6.2

Comfort

7.0

Overall

7.1

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 7 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 £656 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 (£58), Frontier flights from Portland to San Francisco (£63), and British Airways flights from Portland to London Heathrow (£379).

  • 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 £625
    Portland to Los Angeles from £1,359
    Portland to London Heathrow Airport from £1,362
    Portland to Seattle from £1,669

  • 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 £395 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 £384 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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