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Cheap flights from London, ON to Portland from C$ 709

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — PDX
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Portland

Enter your travel dates to find the best prices.

Best flights from London to Portland
Discover carefully curated flight deals from London to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Wed 11/38:10 p.m.YXU - PDX
2 stops29h 31mMultiple Airlines
Sat 14/37:57 p.m.PDX - YXU
2 stops31h 38mMultiple Airlines
Deal found 10/12C$ 709
Sun 18/19:50 a.m.YXU - PDX
2 stops11h 40mAir Canada
Wed 21/13:15 p.m.PDX - YXU
2 stops14h 31mAir Canada
Deal found 9/12C$ 792
Sun 18/15:10 a.m.YXU - PDX
3 stops16h 45mUnited Airlines
Wed 21/18:30 a.m.PDX - YXU
2 stops9h 51mUnited Airlines
Deal found 9/12C$ 1,254

Find flight deals from London to Portland

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Portland (PDX). 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 12 December 2025.

Round-trip from

C$ 709
11/3-14/3
  • 11/3-14/3
  • 4 total stops
  • 61h 09m total
  • London to Portland
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Portland 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 629,999 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from London to Portland that are best for you.

Fly from

London

Fly to

Portland

Route

Depart

Return

Price

LondonPortland

YXU - PDX

YXUPDX

London

Wed 11/3

8:10 p.m.-10:41 p.m.

2 stops29h 31m

Portland

Sat 14/3

7:57 p.m.-6:35 a.m.

2 stops31h 38m

C$ 709

LondonPortland

YXU - PDX

YXUPDX

London

Sun 18/1

9:50 a.m.-6:30 p.m.

2 stops11h 40m

Portland

Wed 21/1

3:15 p.m.-8:46 a.m.

2 stops14h 31m

C$ 792

LondonPortland

YXU - PDX

YXUPDX

London

Sun 18/1

5:10 a.m.-6:55 p.m.

3 stops16h 45m

Portland

Wed 21/1

8:30 a.m.-9:21 p.m.

2 stops9h 51m

C$ 1,254

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Best time to book a flight from London to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from London 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.

Cheapflights Insights

Everything you need to know about your flight from London to Portland

What is the cheapest month to book a flight from London, Ontario to Portland?

Currently, September is the cheapest month in which you can book a flight from London, Ontario to Portland (average of C$ 217). Flying from London, Ontario to Portland in March is currently the most expensive (average of C$ 414). 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.

Related info for your journey

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

  • How long is the flight from London, Ontario to Portland?

    A quick flight from London, Ontario to Portland can take about 11h 40m. Air Canada provides one of the quickest options available for as low as C$ 792. The distance between London, Ontario and Portland is about 3270 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Portland 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 London, Ontario to Portland?

    Currently, September is the cheapest month in which you can book a flight from London, Ontario to Portland (average of C$ 217). Flying from London, Ontario to Portland in March is currently the most expensive (average of C$ 414). 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

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Tillamook
Cannon Beach
Lincoln City

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Cheapflights helps you search for flights from London to Portland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Portland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Portland.

Can Cheapflights find flights from London to Portland with no change fees?

Yes, we can. To see specific flights from London to Portland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Portland become cheaper?

Of course! You can now track prices for flights from London to Portland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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