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Cheap flights from Portland to London from $352

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to London departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
7:02 am - 5:25 pm
PDX
-
LCY
26h 23m
2 stops
SWISS Logo
9:15 am - 9:00 pm
LCY
-
PDX
19h 45m
2 stops
$939SWISS
Tue, Oct 6 - Fri, Oct 16
Delta Logo
1:05 pm - 8:50 am
PDX
-
LCY
11h 45m
1 stop
Delta Logo
12:10 pm - 11:10 am
LCY
-
PDX
31h 00m
1 stop
$950Delta
Mon, Sep 7 - Sat, Sep 26
Delta Logo
3:50 pm - 4:40 pm
PDX
-
LCY
16h 50m
2 stops
Delta Logo
10:00 am - 11:10 am
LCY
-
PDX
33h 10m
1 stop
$954Delta
Thu, Sep 10 - Thu, Oct 1
Delta Logo
1:05 pm - 9:30 am
PDX
-
LCY
12h 25m
1 stop
Delta Logo
10:00 am - 10:02 pm
LCY
-
PDX
20h 02m
2 stops
$959Delta
Mon, Sep 7 - Mon, Sep 14
Delta Logo
1:05 pm - 9:30 am
PDX
-
LCY
12h 25m
1 stop
Delta Logo
8:25 am - 9:02 pm
LCY
-
PDX
20h 37m
2 stops
$960Delta
Wed, Sep 16 - Sat, Sep 26
Delta Logo
3:21 pm - 4:40 pm
PDX
-
LCY
17h 19m
2 stops
Delta Logo
9:20 am - 8:16 pm
LCY
-
PDX
18h 56m
2 stops
$964Delta
Thu, Sep 24 - Fri, Oct 2
Virgin Atlantic Logo
1:05 pm - 5:20 pm
PDX
-
LCY
20h 15m
1 stop
Virgin Atlantic Logo
1:45 pm - 11:35 am
LCY
-
PDX
29h 50m
2 stops
$970Virgin Atlantic
Sun, Sep 20 - Sun, Sep 27
Delta Logo
3:00 pm - 4:40 pm
PDX
-
LCY
17h 40m
2 stops
Delta Logo
10:00 am - 11:10 am
LCY
-
PDX
33h 10m
1 stop
$984Delta
Sun, Sep 6 - Thu, Oct 1
SWISS Logo
10:43 am - 12:35 pm
PDX
-
LCY
17h 52m
2 stops
SWISS Logo
9:15 am - 9:00 pm
LCY
-
PDX
19h 45m
2 stops
$985SWISS
Tue, Oct 6 - Fri, Oct 16
Delta Logo
1:05 pm - 9:30 am
PDX
-
LCY
12h 25m
1 stop
Delta Logo
10:00 am - 10:02 pm
LCY
-
PDX
20h 02m
2 stops
$989Delta
Wed, Aug 26 - Tue, Sep 22

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Delta flights from Portland to London City Airport

Our best Delta deals on Portland to London City Airport flight tickets
Delta
Sep 7
PDX1:05 pmPortland
11h 45m
1 stop
LCY8:50 amLondon City
Sep 26
LCY12:10 pmLondon City
31h 00m
1 stop
PDX11:10 amPortland
$950
Delta
Sep 10
PDX3:50 pmPortland
16h 50m
2 stops
LCY4:40 pmLondon City
Oct 1
LCY10:00 amLondon City
33h 10m
1 stop
PDX11:10 amPortland
$954
Delta
Sep 7
PDX1:05 pmPortland
12h 25m
1 stop
LCY9:30 amLondon City
Sep 14
LCY10:00 amLondon City
20h 02m
2 stops
PDX10:02 pmPortland
$959

Lufthansa flights from Portland to London City Airport

Our best Lufthansa deals on Portland to London City Airport flight tickets
Lufthansa
Aug 26
PDX2:27 pmPortland
19h 28m
2 stops
LCY5:55 pmLondon City
Sep 2
LCY9:15 amLondon City
19h 50m
2 stops
PDX9:05 pmPortland
$1,018
Lufthansa
Jun 17
PDX2:27 pmPortland
19h 28m
2 stops
LCY5:55 pmLondon City
Jun 23
LCY9:15 amLondon City
17h 56m
2 stops
PDX7:11 pmPortland
$1,861

momondo Fare Finder

 
Customize your flight search to find flights from Portland to London City Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 14, 2026.
Use the filters below to find and compare flights from Portland to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLondon

PDX - LCY

PDXLCY

Portland

Tue 10/6

7:02 am-5:25 pm

2 stops26h 23m

London City

Fri 10/16

9:15 am-9:00 pm

2 stops19h 45m

$939

PortlandLondon

PDX - LCY

PDXLCY

Portland

Mon 9/7

1:05 pm-8:50 am

1 stop11h 45m

London City

Sat 9/26

12:10 pm-11:10 am

1 stop31h 00m

$950

PortlandLondon

PDX - LCY

PDXLCY

Portland

Thu 9/10

3:50 pm-4:40 pm

2 stops16h 50m

London City

Thu 10/1

10:00 am-11:10 am

1 stop33h 10m

$954
Quickest round-trip

PortlandLondon

PDX - LCY

PDXLCY

Portland

Mon 9/7

1:05 pm-9:30 am

1 stop12h 25m

London City

Mon 9/14

10:00 am-10:02 pm

2 stops20h 02m

$959

PortlandLondon

PDX - LCY

PDXLCY

Portland

Wed 9/16

1:05 pm-9:30 am

1 stop12h 25m

London City

Sat 9/26

8:25 am-9:02 pm

2 stops20h 37m

$960

PortlandLondon

PDX - LCY

PDXLCY

Portland

Thu 9/24

3:21 pm-4:40 pm

2 stops17h 19m

London City

Fri 10/2

9:20 am-8:16 pm

2 stops18h 56m

$964

PortlandLondon

PDX - LCY

PDXLCY

Portland

Sun 9/20

1:05 pm-5:20 pm

1 stop20h 15m

London City

Sun 9/27

1:45 pm-11:35 am

2 stops29h 50m

$970

PortlandLondon

PDX - LCY

PDXLCY

Portland

Sun 9/6

3:00 pm-4:40 pm

2 stops17h 40m

London City

Thu 10/1

10:00 am-11:10 am

1 stop33h 10m

$984

PortlandLondon

PDX - LCY

PDXLCY

Portland

Tue 10/6

10:43 am-12:35 pm

2 stops17h 52m

London City

Fri 10/16

9:15 am-9:00 pm

2 stops19h 45m

$985

PortlandLondon

PDX - LCY

PDXLCY

Portland

Wed 8/26

1:05 pm-9:30 am

1 stop12h 25m

London City

Tue 9/22

10:00 am-10:02 pm

2 stops20h 02m

$989

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Portland to London City Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Portland to London City?

KLM and Delta are the most popular carriers operating from Portland to London City

When to book flights from Portland to London City Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to London City Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to London City Airport (PDX to LCY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to London City Airport

Fastest flight time

11h 45m

Direct flights

None
The fastest flight from Portland to London City Airport takes 11h 45m
There are no direct flights from Portland to London City Airport. There are no popular flight routes from Portland to London City Airport.
Search flight deals

Frequently asked questions about flying from Portland to London City Airport

  • How far is Portland to London City by plane?

    Portland and London City are 4914.3 mi apart from one another. Flights usually cover this in 11h 45m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to London City Airport?

    Prices for flights from Portland Airport to London City Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portland Airport to London City Airport?

    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 from Portland Airport to London City Airport.

  • What documentation or ID do you need to fly to London City Airport?

    The required travel and health documents for your London City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Dover
Hayes
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Brentwood
Watford
Cobham
Guildford
Folkestone
Uxbridge
Romford
Chelmsford

Why use momondo?

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

It is quick and easy to find Portland to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

momondo does allow users to show only those flights to London from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Portland.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Portland and alert you when they change.

An easier way to manage your London City Airport trip

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