Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland to London from $291

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 10/5. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland to London

Cheap round-trip flights

Icelandair Logo
3:20 pm - 2:40 pmPDX-LGW
15h 20m1 stop
Icelandair Logo
3:40 pm - 5:55 pmLGW-PDX
34h 15m1 stop
$562Icelandair
Find Deal
Wed, Oct 15 - Mon, Oct 20
Icelandair Logo
3:20 pm - 2:40 pmPDX-LGW
15h 20m1 stop
Icelandair Logo
3:40 pm - 5:55 pmLGW-PDX
34h 15m1 stop
$568Icelandair
Find Deal
Sun, Sep 28 - Thu, Oct 16
Icelandair Logo
3:20 pm - 2:35 pmPDX-LGW
15h 15m1 stop
Icelandair Logo
3:40 pm - 5:55 pmLGW-PDX
34h 15m1 stop
$571Icelandair
Find Deal
Mon, Oct 6 - Mon, Oct 20
Icelandair Logo
3:20 pm - 2:40 pmPDX-LGW
15h 20m1 stop
Icelandair Logo
3:40 pm - 5:55 pmLGW-PDX
34h 15m1 stop
$574Icelandair
Find Deal
Thu, Oct 9 - Mon, Oct 20
Icelandair Logo
2:45 pm - 10:55 amPDX-LGW
12h 10m1 stop
Icelandair Logo
11:55 am - 5:00 pmLGW-PDX
13h 05m1 stop
$576Icelandair
Find Deal
Mon, Dec 8 - Wed, Dec 17
Icelandair Logo
2:45 pm - 10:55 amPDX-LGW
12h 10m1 stop
Icelandair Logo
11:55 am - 5:00 pmLGW-PDX
13h 05m1 stop
$579Icelandair
Find Deal
Sat, Dec 6 - Wed, Dec 17
Icelandair Logo
2:45 pm - 10:55 amPDX-LGW
12h 10m1 stop
Icelandair Logo
11:55 am - 5:00 pmLGW-PDX
13h 05m1 stop
$583Icelandair
Find Deal
Thu, Dec 11 - Wed, Dec 17
Logo
6:07 am - 7:50 amPDX-LGW
17h 43m2 stops
Logo
3:05 pm - 1:01 pmLGW-PDX
29h 56m2 stops
$617
Find Deal
Sun, Sep 21 - Tue, Oct 7
SWISS Logo
11:07 am - 5:50 pmPDX-LGW
22h 43m2 stops
SWISS Logo
6:40 pm - 10:08 pmLGW-PDX
35h 28m2 stops
$659SWISS
Find Deal
Wed, Feb 11 - Wed, Feb 18
SWISS Logo
8:30 am - 5:50 pmPDX-LGW
25h 20m2 stops
SWISS Logo
6:40 pm - 6:46 pmLGW-PDX
32h 06m2 stops
$708SWISS
Find Deal
Tue, Sep 9 - Thu, Sep 18

Icelandair flights from Portland to London Gatwick Airport

Our best Icelandair deals on Portland to London Gatwick Airport flight tickets
Icelandair
Oct 15
PDX3:20 pmPortland
15h 20m
1 stop
LGW2:40 pmLondon Gatwick
Oct 20
LGW3:40 pmLondon Gatwick
34h 15m
1 stop
PDX5:55 pmPortland
$562
Find similar
Icelandair
Sep 28
PDX3:20 pmPortland
15h 20m
1 stop
LGW2:40 pmLondon Gatwick
Oct 16
LGW3:40 pmLondon Gatwick
34h 15m
1 stop
PDX5:55 pmPortland
$568
Find similar
Icelandair
Oct 6
PDX3:20 pmPortland
15h 15m
1 stop
LGW2:35 pmLondon Gatwick
Oct 20
LGW3:40 pmLondon Gatwick
34h 15m
1 stop
PDX5:55 pmPortland
$571
Find similar

SWISS flights from Portland to London Gatwick Airport

Our best SWISS deals on Portland to London Gatwick Airport flight tickets
SWISS
Feb 11
PDX11:07 amPortland
22h 43m
2 stops
LGW5:50 pmLondon Gatwick
Feb 18
LGW6:40 pmLondon Gatwick
35h 28m
2 stops
PDX10:08 pmPortland
$659
Find similar
SWISS
Sep 9
PDX8:30 amPortland
25h 20m
2 stops
LGW5:50 pmLondon Gatwick
Sep 18
LGW6:40 pmLondon Gatwick
32h 06m
2 stops
PDX6:46 pmPortland
$708
Find similar
SWISS
Aug 25
PDX8:30 amPortland
49h 20m
2 stops
LGW5:50 pmLondon Gatwick
Sep 8
LGW6:35 pmLondon Gatwick
32h 11m
2 stops
PDX6:46 pmPortland
$1,042
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to London Gatwick 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 August 21, 2025.
Use the filters below to find and compare flights from Portland to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLondon

PDX - LGW

PDXLGW

Portland

Wed 10/15

3:20 pm-2:40 pm

1 stop15h 20m

London Gatwick

Mon 10/20

3:40 pm-5:55 pm

1 stop34h 15m

$562

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sun 9/28

3:20 pm-2:40 pm

1 stop15h 20m

London Gatwick

Thu 10/16

3:40 pm-5:55 pm

1 stop34h 15m

$568

PortlandLondon

PDX - LGW

PDXLGW

Portland

Mon 10/6

3:20 pm-2:35 pm

1 stop15h 15m

London Gatwick

Mon 10/20

3:40 pm-5:55 pm

1 stop34h 15m

$571

PortlandLondon

PDX - LGW

PDXLGW

Portland

Thu 10/9

3:20 pm-2:40 pm

1 stop15h 20m

London Gatwick

Mon 10/20

3:40 pm-5:55 pm

1 stop34h 15m

$574

PortlandLondon

PDX - LGW

PDXLGW

Portland

Mon 12/8

2:45 pm-10:55 am

1 stop12h 10m

London Gatwick

Wed 12/17

11:55 am-5:00 pm

1 stop13h 05m

$576

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 12/6

2:45 pm-10:55 am

1 stop12h 10m

London Gatwick

Wed 12/17

11:55 am-5:00 pm

1 stop13h 05m

$579

PortlandLondon

PDX - LGW

PDXLGW

Portland

Thu 12/11

2:45 pm-10:55 am

1 stop12h 10m

London Gatwick

Wed 12/17

11:55 am-5:00 pm

1 stop13h 05m

$583

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sun 9/21

6:07 am-7:50 am

2 stops17h 43m

London Gatwick

Tue 10/7

3:05 pm-1:01 pm

2 stops29h 56m

$617

PortlandLondon

PDX - LGW

PDXLGW

Portland

Wed 2/11

11:07 am-5:50 pm

2 stops22h 43m

London Gatwick

Wed 2/18

6:40 pm-10:08 pm

2 stops35h 28m

$659

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 9/9

8:30 am-5:50 pm

2 stops25h 20m

London Gatwick

Thu 9/18

6:40 pm-6:46 pm

2 stops32h 06m

$708

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Portland to London Gatwick 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 day to depart on your flight to London Gatwick Airport?

The cheapest day to depart from Portland to London Gatwick Airport is on a Thursday when prices can be found for as low as $667. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Monday is $1,206.

What is the cheapest time of day to depart on your flight to London Gatwick Airport?

Flying to London Gatwick Airport from Portland in the morning is the least expensive time of day to depart. momondo users have found prices as low as $772 when looking at flights departing in the morning. At noon is when there is more demand to fly to London Gatwick Airport, so prices are often more expensive at around $913 per ticket.

When to book flights from Portland to London Gatwick Airport

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

Cheap Portland to London Gatwick Airport (PDX to LGW) flight deals and tips

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

Direct flights

None
There are no direct flights from Portland to London Gatwick Airport. There are no popular flight routes from Portland to London Gatwick Airport.
Search flight deals

  • How far is Portland to London Gatwick by plane?

    Portland and London Gatwick are 4926.9 mi apart from one another. Flights usually cover this in 12h 10m, depending on flying conditions and air traffic around both airports.

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

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

  • How many operators does momondo search for flights from Portland Airport to London Gatwick Airport?

  • How old do you have to be to fly from Portland Airport to London Gatwick 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 Gatwick Airport.

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

    The travel and health documents you'll need for your trip to London Gatwick Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Gatwick Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to London Gatwick Airport?

Best airlines flying from Portland to London Gatwick Airport

Compare and see reviews for airlines that fly from Portland to London Gatwick Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $511Free CancellationRating
7.0
529 reviews
Search Icelandair flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Luton
Dover
Slough
Milton Keynes
Guildford
Dartford
Crawley
Hayes
Chelmsford
Stansted
Brentwood
Ilford
Folkestone
Colchester
Watford
Richmond
Canterbury
Croydon

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to London. momondo saves you time and could save you money on your trip.

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

Yes. All flights to London from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Portland to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Gatwick 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 8/26
Tue 9/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $351
Flights to London City Airportfrom $460
Flights to London Stansted Airportfrom $400
Flights to London Luton Airportfrom $420
Flights to London Southend Airportfrom $446
Flights to Glasgow Intl Airportfrom $427
Flights to Belfast Intl Airportfrom $538
Flights to Belfast City Airportfrom $538