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$632+ Cheap flights from Portland, ME (PWM) to London City (LCY)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LCY
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Portland to London City

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$632
(Delta)

Popular in

July

Cheapest in

October

Average price

$790
From Portland to London City
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Portland to London City

Cheapest flights from Portland to London City
Explore the most affordable flight options available from Portland to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:30 pmPWM - LCY
2 stops14h 00mDelta
Tue 11/1810:00 amLCY - PWM
2 stops18h 54mDelta
Deal found 9/10$632
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/93:00 pmPWM - LCY
2 stops16h 50mMultiple Airlines
Mon 11/177:10 pmLCY - PWM
2 stops28h 49mMultiple Airlines
Deal found 9/11$778
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:20 pmPWM - LCY
2 stops14h 00mMultiple Airlines
Tue 11/185:45 pmLCY - PWM
2 stops29h 03mMultiple Airlines
Deal found 9/11$834
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/262:20 pmPWM - LCY
2 stops18h 30mMultiple Airlines
Sun 11/27:20 pmLCY - PWM
2 stops28h 39mMultiple Airlines
Deal found 9/11$1,503
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/193:15 pmPWM - LCY
2 stops16h 15mMultiple Airlines
Thu 10/235:50 pmLCY - PWM
2 stops27h 54mMultiple Airlines
Deal found 9/11$1,678
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/82:38 pmPWM - LCY
2 stops17h 37mDelta
Sun 11/161:45 pmLCY - PWM
2 stops15h 09mDelta
Deal found 9/11$2,267
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:48 pmPWM - LCY
2 stops15h 42mDelta
Sun 11/301:45 pmLCY - PWM
2 stops15h 09mDelta
Deal found 9/10$6,672

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to London City 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Portland to London City Airport that are best for you.

Fly from

Portland

Fly to

London City

Route

Depart

Return

Price

PortlandLondon

PWM - LCY

PWMLCY

Portland

Fri 11/14

6:35 am-9:30 am

2 stops21h 55m

London City

Tue 11/18

9:20 am-11:54 pm

2 stops43h 34m

$632

PortlandLondon

PWM - LCY

PWMLCY

Portland

Thu 11/13

2:20 pm-9:20 am

2 stops14h 00m

London City

Tue 11/18

5:45 pm-5:48 pm

2 stops29h 03m

$834

PortlandLondon

PWM - LCY

PWMLCY

Portland

Sun 10/26

2:20 pm-12:50 pm

2 stops18h 30m

London City

Sun 11/2

7:20 pm-6:59 pm

2 stops28h 39m

$1,503

PortlandLondon

PWM - LCY

PWMLCY

Portland

Sun 10/19

3:15 pm-12:30 pm

2 stops16h 15m

London City

Thu 10/23

5:50 pm-4:44 pm

2 stops27h 54m

$1,678

PortlandLondon

PWM - LCY

PWMLCY

Portland

Sat 11/8

2:38 pm-1:15 pm

2 stops17h 37m

London City

Sun 11/16

1:45 pm-11:54 pm

2 stops15h 09m

$2,267

PortlandLondon

PWM - LCY

PWMLCY

Portland

Tue 11/25

12:48 pm-9:30 am

2 stops15h 42m

London City

Sun 11/30

1:45 pm-11:54 pm

2 stops15h 09m

$6,672

PortlandLondon

PWM - LCY

PWMLCY

Portland

Mon 12/8

10:02 am-12:50 pm

2 stops21h 48m

$1,230

PortlandLondon

PWM - LCY

PWMLCY

Portland

Mon 12/8

2:13 pm-12:50 pm

2 stops17h 37m

$3,220

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Portland to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Portland with our price prediction graph.
Estimated round-trip 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.

Related info for your journey

Find useful and relevant information for your journey from Portland to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to London City?

    Portland (PWM) is the airport you will fly out of if you book a flight from Portland to London City. You should not have trouble finding flights to London City from Portland; the airport handles an average of 0 outbound flights to London City per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Portland airport to London City. It is only a 2.9 mi journey to Portland (PWM) from Portland’s city center.

  • How long is the flight from Portland, Maine to London City Airport?

    A quick flight from Portland, Maine to London City Airport can take about 21h 55m. Delta provides one of the quickest options available for as low as $632. The distance from Portland, Maine to London City Airport is about 3193 mi.

  • Can I find deals for flights from Portland to London City that include hotel bookings?

    Yes. In addition to deals on Portland to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to London City.

  • Can I find deals for business class flights from Portland to London City?

    Yes. Cheapflights offers flight deals from Portland to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to London City Airport?

    Currently, April is the cheapest month in which you can book a flight from Portland, Maine to London City Airport (average of $686). Flying from Portland, Maine to London City Airport in July is currently the most expensive (average of $1,046). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
Arundel

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