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Cheap flights from Portland to London from $420

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 1/18. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
1:25 pm - 9:30 amPDX-LCY
12h 05m1 stop
Virgin Atlantic Logo
10:00 am - 8:40 pmLCY-PDX
18h 40m2 stops
$645Virgin Atlantic
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Wed, Nov 26 - Wed, Dec 3
Delta Logo
1:25 pm - 9:30 amPDX-LCY
12h 05m1 stop
Delta Logo
10:00 am - 11:25 amLCY-PDX
33h 25m1 stop
$646Delta
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Wed, Feb 11 - Tue, Feb 17
Virgin Atlantic Logo
10:00 am - 5:20 pmPDX-LCY
23h 20m2 stops
Virgin Atlantic Logo
8:05 pm - 11:25 amLCY-PDX
23h 20m1 stop
$647Virgin Atlantic
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Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
3:54 pm - 5:35 pmPDX-LCY
17h 41m2 stops
Multiple Airlines Logo
7:10 pm - 6:45 pmLCY-PDX
31h 35m2 stops
$664Multiple Airlines
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Tue, Nov 25 - Tue, Dec 2
Multiple Airlines Logo
1:35 pm - 5:40 pmPDX-LCY
21h 05m2 stops
Multiple Airlines Logo
7:10 pm - 7:00 pmLCY-PDX
30h 50m2 stops
$673Multiple Airlines
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Mon, Mar 9 - Mon, Mar 16
SWISS Logo
7:11 am - 5:30 pmPDX-LCY
26h 19m2 stops
SWISS Logo
6:05 pm - 6:46 pmLCY-PDX
32h 41m2 stops
$678SWISS
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Sat, Apr 25 - Mon, May 4
SWISS Logo
10:47 am - 5:05 pmPDX-LCY
22h 18m2 stops
SWISS Logo
1:20 pm - 10:32 pmLCY-PDX
41h 12m2 stops
$692SWISS
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Mon, Feb 2 - Sun, Feb 8
Lufthansa Logo
9:50 am - 5:40 pmPDX-LCY
23h 50m2 stops
Lufthansa Logo
9:50 am - 9:15 pmLCY-PDX
19h 25m2 stops
$707Lufthansa
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Wed, Dec 3 - Tue, Dec 9
Lufthansa Logo
9:50 am - 4:40 pmPDX-LCY
22h 50m2 stops
Lufthansa Logo
9:40 am - 8:49 pmLCY-PDX
18h 09m2 stops
$716Lufthansa
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Thu, Mar 5 - Thu, Mar 12
KLM Logo
1:25 pm - 9:30 amPDX-LCY
12h 05m1 stop
KLM Logo
5:50 pm - 11:25 amLCY-PDX
25h 35m1 stop
$733KLM
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Wed, Jan 14 - Thu, Jan 29

SWISS flights from Portland to London City Airport

Our best SWISS deals on Portland to London City Airport flight tickets
SWISS
Nov 4
PDX10:52 amPortland
37h 48m
2 stops
LCY8:40 amLondon City
Nov 13
LCY5:40 pmLondon City
36h 56m
2 stops
PDX10:36 pmPortland
$634
Find similar
SWISS
Apr 25
PDX7:11 amPortland
26h 19m
2 stops
LCY5:30 pmLondon City
May 4
LCY6:05 pmLondon City
32h 41m
2 stops
PDX6:46 pmPortland
$678
Find similar
SWISS
Feb 2
PDX10:47 amPortland
22h 18m
2 stops
LCY5:05 pmLondon City
Feb 8
LCY1:20 pmLondon City
41h 12m
2 stops
PDX10:32 pmPortland
$692
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Lufthansa flights from Portland to London City Airport

Our best Lufthansa deals on Portland to London City Airport flight tickets
Lufthansa
Nov 4
PDX12:55 pmPortland
19h 45m
2 stops
LCY4:40 pmLondon City
Nov 13
LCY9:40 amLondon City
19h 46m
2 stops
PDX9:26 pmPortland
$679
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Lufthansa
Nov 4
PDX12:55 pmPortland
19h 45m
2 stops
LCY4:40 pmLondon City
Nov 12
LCY6:10 pmLondon City
32h 20m
2 stops
PDX6:30 pmPortland
$689
Find similar
Lufthansa
Nov 4
PDX12:55 pmPortland
19h 45m
2 stops
LCY4:40 pmLondon City
Nov 17
LCY6:15 pmLondon City
32h 21m
2 stops
PDX6:36 pmPortland
$699
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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 October 28, 2025.
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

PortlandLondon

PDX - LCY

PDXLCY

Portland

Wed 11/26

1:25 pm-9:30 am

1 stop12h 05m

London City

Wed 12/3

10:00 am-8:40 pm

2 stops18h 40m

$645

PortlandLondon

PDX - LCY

PDXLCY

Portland

Wed 2/11

1:25 pm-9:30 am

1 stop12h 05m

London City

Tue 2/17

10:00 am-11:25 am

1 stop33h 25m

$646

PortlandLondon

PDX - LCY

PDXLCY

Portland

Tue 2/10

10:00 am-5:20 pm

2 stops23h 20m

London City

Tue 2/17

8:05 pm-11:25 am

1 stop23h 20m

$647

PortlandLondon

PDX - LCY

PDXLCY

Portland

Tue 11/25

3:54 pm-5:35 pm

2 stops17h 41m

London City

Tue 12/2

7:10 pm-6:45 pm

2 stops31h 35m

$664

PortlandLondon

PDX - LCY

PDXLCY

Portland

Mon 3/9

1:35 pm-5:40 pm

2 stops21h 05m

London City

Mon 3/16

7:10 pm-7:00 pm

2 stops30h 50m

$673

PortlandLondon

PDX - LCY

PDXLCY

Portland

Sat 4/25

7:11 am-5:30 pm

2 stops26h 19m

London City

Mon 5/4

6:05 pm-6:46 pm

2 stops32h 41m

$678

PortlandLondon

PDX - LCY

PDXLCY

Portland

Mon 2/2

10:47 am-5:05 pm

2 stops22h 18m

London City

Sun 2/8

1:20 pm-10:32 pm

2 stops41h 12m

$692

PortlandLondon

PDX - LCY

PDXLCY

Portland

Wed 12/3

9:50 am-5:40 pm

2 stops23h 50m

London City

Tue 12/9

9:50 am-9:15 pm

2 stops19h 25m

$707

PortlandLondon

PDX - LCY

PDXLCY

Portland

Thu 3/5

9:50 am-4:40 pm

2 stops22h 50m

London City

Thu 3/12

9:40 am-8:49 pm

2 stops18h 09m

$716

PortlandLondon

PDX - LCY

PDXLCY

Portland

Wed 1/14

1:25 pm-9:30 am

1 stop12h 05m

London City

Thu 1/29

5:50 pm-11:25 am

1 stop25h 35m

$733

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 time of day to depart on your flight to London City Airport?

Our most recent data shows that the best time of day to fly to London City Airport is in the afternoon. Flights from Portland to London City Airport during this time can be as low as $717. Flights at noon are often more expensive with an average ticket price of $1,417.

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

Direct flights

None
There are no direct flights from Portland to London City Airport. There are no popular flight routes from Portland to London City Airport.
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  • 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 35m, 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
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Folkestone
Romford
Ilford
Cobham
Wembley
Stansted
Watford
Harrow

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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