What percentage of Portland to London flights are direct?

In the trailing 90 days, direct flights from Portland to London constituted a small portion of the available options, representing approximately 1.5% of all flights. For journeys involving connections, travelers typically encountered a median of 2 stopovers. This indicates that most routes between these two cities will involve at least one stop.

How long does it take to fly from Portland to London?

A direct flight from Portland to London typically takes around 9 hours and 30 minutes, covering a distance of 7880 kilometers. Flights with one stop generally have a longer duration, with a median travel time of 14 hours and 15 minutes. The additional time for connecting flights accounts for layovers and transfers.

How much do direct flights from Portland to London cost compared to connecting flights?

Historically, direct flights from Portland to London have been significantly more expensive than connecting flights. The median price for a direct flight was $1421, representing a 76% premium over connecting flights. In contrast, connecting flights had a median price of $806. Direct flights also made up a very small share of the market, accounting for only 0.7% of available options in the trailing 90 days.

Flights From Portland

To London

Cheap Flights from Portland to London

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Deals from

Portland

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Prices updated 1 day ago

461 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)

Today’s best flight deals from Portland to London

Explore current cheapest deals departing from Portland to London

2026-10-19 – 2026-10-26
PDX - London
91% AI deal score
$769
$480
Round trip
2026-10-17 – 2026-10-22
PDX - London
89% AI deal score
$790
$552
Round trip
2026-11-17 – 2026-11-26
PDX - London
80% AI deal score
$633
$561
Round trip
2026-10-21 – 2026-10-28
PDX - London
87% AI deal score
$769
$588
Round trip
2026-12-07 – 2026-12-11
PDX - London
92% AI deal score
$924
$588
Round trip
2026-10-22 – 2026-10-24
PDX - London
88% AI deal score
$809
$589
Round trip
2026-11-17 – 2026-11-25
PDX - London
82% AI deal score
$687
$589
Round trip
2026-11-16 – 2026-11-25
PDX - London
82% AI deal score
$688
$591
Round trip
2026-12-03 – 2026-12-07
PDX - London
89% AI deal score
$842
$597
Round trip
2026-10-15 – 2026-10-19
PDX - London
88% AI deal score
$797
$603
Round trip

Portland to London: Overview

Insights for flights from Portland to London

For travelers looking for cheap flights from Portland to London, the data indicates that February is typically the cheapest month to fly, with a median fare of $540. Other cost-effective months include January, with a median fare of $578, and April, where the median fare is $615. Planning your trip around these months could lead to more favorable prices.

Fares for flights from Portland to London typically range from $864 to $1328, with a median of $1094. Right now, fares are near the typical level, and only 2% of recent fares were classified as a good price. New deals appear almost daily, suggesting frequent opportunities to find better prices.

When flying from Portland to London, most itineraries connect at least once, as only 1.5% of recent fares were for non-stop flights. For connecting itineraries, the typical number of stopovers is 2. This means you should expect to make multiple stops on your journey.

A typical journey from Portland to London takes about 9h 30m including connections. However, if you find a rare direct flight, the non-stop median flight time is also 9h 30m. For connecting flights, the median journey time extends significantly to 21h 45m.

The distance between Portland and London is approximately 7880 kilometers, making this a long-haul flight. This classification indicates a significant travel distance, which often translates to longer flight times and typically involves international travel considerations.

How much is a round trip from Portland to London

Regular price: $660 - $1,878

Prices are currently below the regular range for flights from Portland to London.

The regular price range for flights from Portland to London is between $660 and $1878. The current lowest deal is $480 with Icelandair, for travel from Oct 19-Oct 26.

now $480

Low $660

High $1,878

The cheapest time to fly from Portland to London

The cheapest month to fly from Portland to London is May, with a median price of $512. The most expensive month is December, with a median price of $1474. Prices are generally lower from January to November.

May

Cheapest

Flights from $512

December

Most Expensive

Flights from $1,474

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Portland to London

American Airlines

Last-minute flights going from Portland to London

Sun, Sep 20

⌛ Last-Minute

PDX - London

Portland (PDX) - London (LHR)

Alaska Airlines, Inc.

$931

$722

One-way

Mon, Sep 21

⌛ Last-Minute

PDX - London

Portland (PDX) - London (LHR)

Air France

$835

$744

One-way

Mon, Sep 21

⌛ Last-Minute

PDX - London

Portland (PDX) - London (STN)

KLM

$1,017

$763

One-way

Mon, Oct 5

⌛ Last-Minute

PDX - London

Portland (PDX) - London (STN)

Icelandair

$743

$725

One-way

Tue, Oct 6

⌛ Last-Minute

PDX - London

Portland (PDX) - London (LHR)

Alaska Airlines, Inc.

$745

$720

One-way

Wed, Oct 7

⌛ Last-Minute

PDX - London

Portland (PDX) - London (LHR)

Icelandair

$745

$712

One-way

Biggest price drops on these dates for flights from Portland to London

4 nights

Dec 7 - Dec 11

$924 → $554

40%

7 nights

Oct 19 - Oct 26

$769 → $473

39%

4 nights

Dec 3 - Dec 7

$846 → $600

29%

5 nights

Oct 17 - Oct 22

$788 → $552

30%

Popular Airports to fly from Portland to London

Portland - London route insights

💸 Price insights

Recent fares are near the typical level

Recent fares from Portland to London are near the typical level of $1094.

📅 Best time to fly

Fly in February for prices as low as $540

Historically, February is the cheapest month to fly, with a median price of $540.

⏱️ Flight duration

Connecting flights average 21h 45m

Connecting flights from Portland to London typically take 21h 45m, while direct flights take 9h 30m.

✈️ Airlines & availability

Connecting flights are dominant

Only 1.5% of recent flights from Portland to London are direct, with 2 stopovers typical.

🏆 Airline highlight

American Airlines offers direct flights

American Airlines has offered 1 direct flight deal from Portland to London recently.

🎯 Booking tip

Deals appear frequently

Deals from Portland to London appear frequently, with a current deal at $480.

Portland main airports to depart from

Portland International (PDX)

Cheapest

Portland International Airport is a convenient departure point for flights from Portland to London.

📍 ~10 km from Portland (reachable by car or public transport)

💸 Flights from ~$501

London main airports to arrive at

London Stansted (STN)

Cheapest

London Stansted offers a budget-friendly option for flights from Portland to London.

📍 ~49 km from London city center.

💸 Flights from ~$500

Airports nearby London used as alternative

Birmingham (BHX)

Birmingham Airport is a major international hub, offering a wide variety of short and long-haul destinations.

📍 ~160 km from London (reachable by train)

💸 Flights from ~$756

Business & First Class Flight Deals to London

$2,515

Save $3,357

Icelandair

Business Class

Frequently Asked Questions About Flights to London

Historically, the optimal booking window for flights from Portland to London is typically 14-27 days before departure. During this period, the average price was found to be around $713. Prices tend to be higher if booked too far in advance, with flights booked 60+ days out averaging $1086. Conversely, last-minute bookings within 0-6 days of travel also show higher average prices, at approximately $747.

Across the trailing quarter, a good deal for a flight from Portland to London was considered to be $864 or less. This threshold represents the 25th percentile of prices observed over a 90-day period. The median price for this route was $1094, while prices at the 75th percentile reached $1328. Travelers aiming for value should target fares at or below the good price threshold.

Historically, the cheapest months to fly from Portland to London have been February, with a median price of $540, and January, with a median price of $578. April also showed a relatively lower median price of $615. These prices are significantly lower than the annual median price of $1094 for this route, offering substantial savings for travelers with flexible schedules.

Portland to London: Overview

Insights for flights from Portland to London

How much is a round trip from Portland to London

Regular price: $660 - $1,878

Prices are currently below the regular range for flights from Portland to London.

The regular price range for flights from Portland to London is between $660 and $1878. The current lowest deal is $480 with Icelandair, for travel from Oct 19-Oct 26.

now $480

Low $660

High $1,878

The cheapest time to fly from Portland to London

May

Cheapest

Flights from $512

December

Most Expensive

Flights from $1,474

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec